By: Christa Kowalczyk
A projector is known as a piece of equipment having a light beam. It makes use of lenses and mirrors in order to narrow the lights. There are various projectors you can choose from.
Here are some good projectors you can choose from:
Epson PowerLite 77c Projector Specs
$599.99 to $806.61
Display TypeLCD projector
Resolution Of Projector1024 x 768
Extra FeaturesAuto Vertical Keystone, 16:9 aspect ratio support
Feature RatioApprox. 16:9 and 4:3
Color Intensity24-bit
Included PartsSpeaker
Light Source Energy248 Watt
Light Source KindUHE
Max Operating Temperature95 °F
Max Screen Distance34 ft
Min Operating Temperature41 °F
Min Screen Distance2.7 ft
Audio OutputMono
Speaker(s)1 x mixed channel
System TypePC
Video StandardsNTSC, NTSC 4.43, the PAL, SECAM, PAL-N, the PAL-M, and PAL 60
ViewSonic PJ503D Projector Specs
$456.00 to $655.00
Display KindDLP projector
Feature RatioApprox. 16:9 and 4:3
The Resolution800 x 600
Extra FeaturesEco-Feature technology
BrightnessAbout 1500 ANSI lumens
Light Power Source250 Watt
Max Operating Temperature104 °F
Max Screen Gap19.7 ft
Min Operating Temperature32 °F
Min Screen Gap5 feet
System TypePC, Mac
Video StandardsPAL-N, PAL-B/G, SECAM, PAL-M, NTSC 4.43, the PAL-I, PAL-D, M-NTSC, PAL-H, PAL 60
Toshiba TDP T45U
$568.00 to $1,199.00
ResolutionApprox. 1024 x 768
Display
BrightnessDLP Projector 2500 ANSI
lumens
Hue Intensity24-bit
Included PartsSpeaker
Light Source Energy260 Watt
Audio OutputMono
Speaker(s)1 x mixed channel
System TypePC
Video StandardsNTSC, SECAM, PAL
Hitachi CP X300 Projector Specs
$689.00 to $899.00
ResolutionApprox. 1024 x 768
Display TypeLCD projector
Additional FeaturesFreeze frame, Integrated de-interlacer (progressive scan), 3:2 pull down compensation
BrightnessApprox. 2600 ANSI lumens
Hue Intensity24-bit
Included PartsSpeaker
Light Source Energy320 Watt
Light Source KindUHB
Max Screen Distance36 ft
Min Screen Gap3 ft
Speaker(s)1 x mixed channel
System TypePC, Mac
Video StandardsSECAM, NTSC, PAL, PAL-N, PAL-B/G, the PAL-M, the NTSC 4.43, the PAL-I, PAL 60, PAL-H, PAL-D
Optoma Technology Optoma EP749 Projector Specs
$599.99 to $1,099.99
ResolutionApprox. 1024 x 768
Extra FeaturesEco-Feature technology, High-bandwidth Digital Content Protection System (HDCP)
Brightness2500 ANSI lumens
Color Intensity24-bit
Light Source Energy300 W
Light Source KindSHP
Max Operating Temperature95 °F
Max Screen Distance39 ft
Min Operating Temperature41 °F
Min Screen Gap5 feet
System TypePC, Mac
Video StandardsSECAM, NTSC, PAL
There are mainly two kinds of projectors, video projectors and transparency projectors. Under the video projectors, there are four kinds. These are the LCD projector, CRT projector, DLP projector and LCOS projector. As for the transparency projector, it has the movie projector, slide projector, and overhead projector.
An LCD projector is also known as a liquid crystal display. It uses a metal halide lamp in order to send light through the LCD panels so as to display images. It is the modern slide projector and overhead projector of today.
CRT projectors are popularly known as video projectors. It utilizes high-brightness picture tubes or CRT so as to create an image. The created image is then enlarged and focused with the use of a lens. This lens is placed behind the face of the CRT.
A DLP or digital light processing device uses a Digital Micromirror Device (DMD). It is a small memory chip which adjusts the electromagnetic mirrors for every pixel in the image. It is also good to use even in rooms that are lit.
LCOS stands for liquid crystal on silicon. It is known as a micro-projection technology device which is used for televisions. Like DLP, it makes use of reflective technology but has liquid crystals instead.
Under the transparency projector, the movie projector uses films on a reel to form moving pictures. A slide projector also enlarges photographic slides on the screen. The overhead projector also enlarges images of pictorial or written material on a transparency that is placed underneath the projector.
For more information on Saveon projectors please visit our website.
Tuesday, October 13, 2009
Thursday, June 25, 2009
Lcd Projector For Maximum Entertainment
Entertainment comes in many forms. Cinema came first, and is a great way to watch a good movie, the television made movies come to home, and projectors make the home into a cinema. Get maximum entertainment with a LCD projector. Join me as we take a look.
Getting maximum entertainment is something we should all strive for. If you look at a black and white image, isn't color images better? Likewise the advancements in technology allow you to do just that.
Obviously there is a budget to order, and for most it will come down to a money aspect. The truth though is that liquid crystal display projectors are truly a route to home cinema entertainment that most families can now afford.
Let's compare the differences between the main option people will have in there homes and that is comparing HDTV television sets with LCD projectors. In the main HDTV sets are great because they allow a simple way to watch television.
A television can come in many sizes, from small bedroom models to large screens that would look good in any home. As screen sizes increase, prices go up.
Liquid crystal display projectors on the other hand are slightly different than HDTV television sets. A projector can make a small image or a large image, depending how close you bring the projector to the projector screen.
Home cinema LCD HD projectors are priced by certain factors. For example smaller portable LCD projectors are much cheaper than permanent LCD projectors for the home.
Projectors can come in a variety of types. For example there is DLP, LCD, and CRT. They each have there own benefits.
LCD projectors can be found in portable models which is great for home use, as well as in more permanent solutions. With portable models, the good thing is that you can take the projector into different rooms in your home.
Permanent solutions are great where you have a room that is made as a permanent home cinema. These models may be more expensive; however, they do really produce some amazing results.
There is a point to remember about projectors and that is about light. If light coming onto the path of the projectors path or onto the screen, then the image will not show fully.
This is why cinemas are in closed auditoriums. This can be fully achieved by having a thick pair of curtains on windows.
The use of a projector screen is an amazing advantage. To get the best from your projector, a projector screen is essential. Though you can in essence paint a wall white, and use it with your projector, the truth is that projector screens do a much better job of bringing the full quality out of your projectors capabilities.
Another point to keep in mind is that LCD projectors prices are much cheaper now. You can buy a pretty decent LCD projector for similar prices as a HDTV set.
By: Kozen Huseyin
Article Directory: http://www.articledashboard.com
Create an amazing home cinema. Visit this link for buy HD projectors and here for HDTV sets.
Getting maximum entertainment is something we should all strive for. If you look at a black and white image, isn't color images better? Likewise the advancements in technology allow you to do just that.
Obviously there is a budget to order, and for most it will come down to a money aspect. The truth though is that liquid crystal display projectors are truly a route to home cinema entertainment that most families can now afford.
Let's compare the differences between the main option people will have in there homes and that is comparing HDTV television sets with LCD projectors. In the main HDTV sets are great because they allow a simple way to watch television.
A television can come in many sizes, from small bedroom models to large screens that would look good in any home. As screen sizes increase, prices go up.
Liquid crystal display projectors on the other hand are slightly different than HDTV television sets. A projector can make a small image or a large image, depending how close you bring the projector to the projector screen.
Home cinema LCD HD projectors are priced by certain factors. For example smaller portable LCD projectors are much cheaper than permanent LCD projectors for the home.
Projectors can come in a variety of types. For example there is DLP, LCD, and CRT. They each have there own benefits.
LCD projectors can be found in portable models which is great for home use, as well as in more permanent solutions. With portable models, the good thing is that you can take the projector into different rooms in your home.
Permanent solutions are great where you have a room that is made as a permanent home cinema. These models may be more expensive; however, they do really produce some amazing results.
There is a point to remember about projectors and that is about light. If light coming onto the path of the projectors path or onto the screen, then the image will not show fully.
This is why cinemas are in closed auditoriums. This can be fully achieved by having a thick pair of curtains on windows.
The use of a projector screen is an amazing advantage. To get the best from your projector, a projector screen is essential. Though you can in essence paint a wall white, and use it with your projector, the truth is that projector screens do a much better job of bringing the full quality out of your projectors capabilities.
Another point to keep in mind is that LCD projectors prices are much cheaper now. You can buy a pretty decent LCD projector for similar prices as a HDTV set.
By: Kozen Huseyin
Article Directory: http://www.articledashboard.com
Create an amazing home cinema. Visit this link for buy HD projectors and here for HDTV sets.
Tuesday, June 2, 2009
LCD Projectors And Other Accessories
What is the reason behind a successful presentation or an exciting theater like experience of watching a movie in your drawing room? It's this device that is responsible for making this experience more realistic.
Generally speaking, it is an electronic device that are used for displaying an image, movie or multimedia presentation on a projection screen or similar surface for the view of an audience.
A movie seen in total darkness with the aid of a projector appears, as it is experienced in the theater. That is why the projection television takes home cinema to the ultimate limits unlike the viewing experience restricted by the physical constraints imposed by a TV tube. That is why with a front projector system installed in your drawing room an entire wall of your lounge becomes your TV screen.
These are one of the quite popular electronic devices and have various uses. There are many companies that manufacture some of the best selling models. They provide these for different application needs. Some of the most common types of projectors are Video projectors can be classified further according to the technology that is used with them. The most common video projectors are LCD projector, CRT projector, DLP projector, LCOS projector.
Transparency projectors are classified as Movie projector, Slide projector, Overhead projector, Magic Lantern, Enlarger.
Other types of projectors include Movie projector, handheld projector, Opaque projector, etc.
With the increasing use of projectors and the improving technology, projectors are getting better and better with each day. The projectors today exhibit many features that are beneficial to the users as well as for the audience. Some of the important projector features are listed below:
Most of the devices you will find today are portable and easy to carry along with you. They come at the size of a laptop and with minimum cables that allows the user the ease to pack them in a small carrying case and to carry in flights or even in the backseat of your car.
Brightness is also an important while choosing a projector and is measured in ANSI lumens. The ultra-portable models come with as low as 350 lumens that are best for lights-off presentations, and go all the way up to 2500 lumens. A model with at least 800 lumens can be efficiently used in a room with some ambient lighting that cannot be avoided.
Image quality can be simply adjusted according to the laptop or PC's resolution, contrary to the common opinion that while buying projector think first about resolution and the image quality.
With all the high-end features, it is not at all difficult to find a projector that fits well with your budget. Compare projectors on specs and pricing before you buy one. Also be sure to include all of the aspects of the process that results in the best value.
Find discount LCD projectors for you business or home at Projectorsbest.com. Get reviews, advice and more.
Generally speaking, it is an electronic device that are used for displaying an image, movie or multimedia presentation on a projection screen or similar surface for the view of an audience.
A movie seen in total darkness with the aid of a projector appears, as it is experienced in the theater. That is why the projection television takes home cinema to the ultimate limits unlike the viewing experience restricted by the physical constraints imposed by a TV tube. That is why with a front projector system installed in your drawing room an entire wall of your lounge becomes your TV screen.
These are one of the quite popular electronic devices and have various uses. There are many companies that manufacture some of the best selling models. They provide these for different application needs. Some of the most common types of projectors are Video projectors can be classified further according to the technology that is used with them. The most common video projectors are LCD projector, CRT projector, DLP projector, LCOS projector.
Transparency projectors are classified as Movie projector, Slide projector, Overhead projector, Magic Lantern, Enlarger.
Other types of projectors include Movie projector, handheld projector, Opaque projector, etc.
With the increasing use of projectors and the improving technology, projectors are getting better and better with each day. The projectors today exhibit many features that are beneficial to the users as well as for the audience. Some of the important projector features are listed below:
Most of the devices you will find today are portable and easy to carry along with you. They come at the size of a laptop and with minimum cables that allows the user the ease to pack them in a small carrying case and to carry in flights or even in the backseat of your car.
Brightness is also an important while choosing a projector and is measured in ANSI lumens. The ultra-portable models come with as low as 350 lumens that are best for lights-off presentations, and go all the way up to 2500 lumens. A model with at least 800 lumens can be efficiently used in a room with some ambient lighting that cannot be avoided.
Image quality can be simply adjusted according to the laptop or PC's resolution, contrary to the common opinion that while buying projector think first about resolution and the image quality.
With all the high-end features, it is not at all difficult to find a projector that fits well with your budget. Compare projectors on specs and pricing before you buy one. Also be sure to include all of the aspects of the process that results in the best value.
Find discount LCD projectors for you business or home at Projectorsbest.com. Get reviews, advice and more.
Wednesday, May 6, 2009
Video Projector Buying Guide
In the past, video projectors were limited to high-end home theater installations that were very expensive, but today these same types of high definition projectors are available for less than $2,000.
Whether you plan on using a video projector for professional or personal use, a projector can provide you with many benefits. Depending on what you will be using the projector for, there are certain things you should look for before making a purchasing decision.
Below you will find a set of questions that our product specialists ask our customers before recommending a projector for them to buy.
How much light is in the room you plan on using the projector in? Generally, the more light that enters the room the more Lumens you will need a projector to have. The more Lumens a projector has, the brighter the picture will display, making it easier to see when in a room with a lot of light. Note that a projector with less than 1000 Lumens might require you to block out almost all of the external light in order to be able to see the picture clearly.
What aspect ratio do you want the projector to display in? The two main types of aspect ratios are either 4:3 (standard) or 16:9 (widescreen and HDTVs). Most people now are choosing projectors in the 16:9 format for their home theaters, while a few prefer the 4:3 format as many movies created before 1953 are in that format.
Do you plan on taking the projector around with you? If you want a projector that is easy to take around, from room to room or office to office, consider the size and weight of the unit. The lighter and smaller the projector, the more portable it will be.
Do you care about the contrast of colors in the picture displayed? If you want a good contrast in your colors, such as blacker blacks and whiter whites, then take a look at the contrast ratio of a given projector. The range of contrast ratios is anywhere between 500:1 and 5000:1 and more. The higher the contrast ratio is, the higher the amount of available colors. Therefore the higher the contrast ratio is the more life like images the projector can produce.
How do you plan on connecting to the projector? Make sure that the projector in question has all of the inputs you plan on using available. These include S-Video, Composite, Component, HDMI, as well as many others.
What type of accessories do you want with the projector? Projectors can come with many accessories, including the necessary cables to make a connection such as an s-video cable, HDMI cable, or something of the like. Make sure the projector has the necessary cables when purchasing a projector. Other accessories can include remotes, lasers, lens cap, etc.
Lumens: The unit of measure for the light output of a projector.
S-Video (Separated Video): An analog video signal that carries the video data as two separate signals.
Composite: A single video connector that combines all the color and brightness signals into one cable using a single RCA male connector. Often color-coded yellow, it is the most common type of analog video connection between older VCRs and TVs.
Component: Video signal in which the luminance and sync information are recorded separately from the color information. Component is superior to composite.
Definitions:
HDMI (High Definition Multimedia Interface): HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio all on a single cable.
4:3 Standard Aspect Ratio: The shape of standard (non-widescreen) TVs, which simply means the picture "frame" is 4 units wide for every 3 units tall.
16:9 Widescreen Aspect Ratio: The shape of widescreen TV's, which simply means the picture "frame" is 16 units wide for every 9 units tall. This ratio is used for high definition televisions.
Buy Home Electronics at DirSelect.com View More Articles at the DirSelect.com Learning Center Buy Video Projectors
Whether you plan on using a video projector for professional or personal use, a projector can provide you with many benefits. Depending on what you will be using the projector for, there are certain things you should look for before making a purchasing decision.
Below you will find a set of questions that our product specialists ask our customers before recommending a projector for them to buy.
How much light is in the room you plan on using the projector in? Generally, the more light that enters the room the more Lumens you will need a projector to have. The more Lumens a projector has, the brighter the picture will display, making it easier to see when in a room with a lot of light. Note that a projector with less than 1000 Lumens might require you to block out almost all of the external light in order to be able to see the picture clearly.
What aspect ratio do you want the projector to display in? The two main types of aspect ratios are either 4:3 (standard) or 16:9 (widescreen and HDTVs). Most people now are choosing projectors in the 16:9 format for their home theaters, while a few prefer the 4:3 format as many movies created before 1953 are in that format.
Do you plan on taking the projector around with you? If you want a projector that is easy to take around, from room to room or office to office, consider the size and weight of the unit. The lighter and smaller the projector, the more portable it will be.
Do you care about the contrast of colors in the picture displayed? If you want a good contrast in your colors, such as blacker blacks and whiter whites, then take a look at the contrast ratio of a given projector. The range of contrast ratios is anywhere between 500:1 and 5000:1 and more. The higher the contrast ratio is, the higher the amount of available colors. Therefore the higher the contrast ratio is the more life like images the projector can produce.
How do you plan on connecting to the projector? Make sure that the projector in question has all of the inputs you plan on using available. These include S-Video, Composite, Component, HDMI, as well as many others.
What type of accessories do you want with the projector? Projectors can come with many accessories, including the necessary cables to make a connection such as an s-video cable, HDMI cable, or something of the like. Make sure the projector has the necessary cables when purchasing a projector. Other accessories can include remotes, lasers, lens cap, etc.
Lumens: The unit of measure for the light output of a projector.
S-Video (Separated Video): An analog video signal that carries the video data as two separate signals.
Composite: A single video connector that combines all the color and brightness signals into one cable using a single RCA male connector. Often color-coded yellow, it is the most common type of analog video connection between older VCRs and TVs.
Component: Video signal in which the luminance and sync information are recorded separately from the color information. Component is superior to composite.
Definitions:
HDMI (High Definition Multimedia Interface): HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio all on a single cable.
4:3 Standard Aspect Ratio: The shape of standard (non-widescreen) TVs, which simply means the picture "frame" is 4 units wide for every 3 units tall.
16:9 Widescreen Aspect Ratio: The shape of widescreen TV's, which simply means the picture "frame" is 16 units wide for every 9 units tall. This ratio is used for high definition televisions.
Buy Home Electronics at DirSelect.com View More Articles at the DirSelect.com Learning Center Buy Video Projectors
Monday, May 4, 2009
About Home Theatre HDTV Projectors
If you have been thinking of buying a HDTV projector instead of a LCD HD TV, there is something to know. HDTV projectors are taking over the market! We all know HD TV projectors are a technology from the movie theater industry, but today it is fully possible to create your own home cinema with a home theatre projector.
HDTV projectors are taking over the market, and for many good reasons. If we think about projectors HD TV, we will find that they are either in cinemas or as home cinemas with the very wealthy. However, the truth is that projectors with high definition can be purchased for less than a reasonable sized LCD HD TV set.
Projectors can be used for many different purposes - for home use, office presentations and for business sales. HDTV projectors serve to make the benefits of HD programming more obvious.
High definition projectors have higher resolutions than regular projectors. Choose HDTV projectors to receive enhanced features and components to transform your ordinary viewing environment into a magnificent atmosphere.
The available projectors today, have 720p for reasonable prices. The 1080p projectors are still very expensive. As time goes by, the prices for 1080p will go down. And by time you read this, the prices for 1080p HD projectors should be at very attractive prices.
You can use the projectors with high definition for a number of purposes. If you have had thoughts of projectors such as those in school or in a library, you would be wrong! Today's projectors are totally different, and are amazing in the quality of picture they can present.
What is more, the projectors available today with high definition, allow you to connect your PC, your DVD, and even your PlayStation to the HD projector. The result is that you can use it for many different uses.
HD projectors also have some disadvantages, although as the technology improves these are becoming less and less relevant. The biggest problem is with having light enter the room. Soon as Sun rays hit where the image is being projected, it can cause problems with viewing. However, technology is keep changing and is making these problems become irrelevant.
An essential purchase is to buy a projector screen, which will make the image much better. Nevertheless, most projectors produce beautiful images at sizes of 90" to 120" diagonal, which is far larger than anything you can get with flat-screen TVs or rear-projection TVs.
Imagine you can buy a good projector HDTV for around $1,000. And the result is that you have a television the size of over 90". That is amazing, and no television whether with high definition or any other technology will offer such a great screen size for such money.
Create an amazing home cinema with a home theatre projector HDTV. Visit this link for projectors HDTV and Sony Bravia projectors
HDTV projectors are taking over the market, and for many good reasons. If we think about projectors HD TV, we will find that they are either in cinemas or as home cinemas with the very wealthy. However, the truth is that projectors with high definition can be purchased for less than a reasonable sized LCD HD TV set.
Projectors can be used for many different purposes - for home use, office presentations and for business sales. HDTV projectors serve to make the benefits of HD programming more obvious.
High definition projectors have higher resolutions than regular projectors. Choose HDTV projectors to receive enhanced features and components to transform your ordinary viewing environment into a magnificent atmosphere.
The available projectors today, have 720p for reasonable prices. The 1080p projectors are still very expensive. As time goes by, the prices for 1080p will go down. And by time you read this, the prices for 1080p HD projectors should be at very attractive prices.
You can use the projectors with high definition for a number of purposes. If you have had thoughts of projectors such as those in school or in a library, you would be wrong! Today's projectors are totally different, and are amazing in the quality of picture they can present.
What is more, the projectors available today with high definition, allow you to connect your PC, your DVD, and even your PlayStation to the HD projector. The result is that you can use it for many different uses.
HD projectors also have some disadvantages, although as the technology improves these are becoming less and less relevant. The biggest problem is with having light enter the room. Soon as Sun rays hit where the image is being projected, it can cause problems with viewing. However, technology is keep changing and is making these problems become irrelevant.
An essential purchase is to buy a projector screen, which will make the image much better. Nevertheless, most projectors produce beautiful images at sizes of 90" to 120" diagonal, which is far larger than anything you can get with flat-screen TVs or rear-projection TVs.
Imagine you can buy a good projector HDTV for around $1,000. And the result is that you have a television the size of over 90". That is amazing, and no television whether with high definition or any other technology will offer such a great screen size for such money.
Create an amazing home cinema with a home theatre projector HDTV. Visit this link for projectors HDTV and Sony Bravia projectors
Saturday, May 2, 2009
LCD Projector - What Specifications Are You Looking For?
People everywhere are choosing an LCD projector over an ordinary projector because of the amazing advantages they can expect to get. These versatile machines can be used in the home for watching movies and in the office to enhance visual presentations. This type of projector also finds itself being used to teach classrooms full of students at once, making it a great aid to teachers.
The specific advantages of this projector over an ordinary one are numerous. For starters, all images (moving or still) are incomparably sharper when coming from an LCD projector. This feature is one that is most apparent during presentations where the text size of numbers is small, but surprisingly readable. Because of this, presenters can display more information on a single image without worrying about weather or not their audience will be able to read it.
Another advantage of this type of projector is the fact that images are not at all distorted. When video information is fed from a computer to the LCD projector, the projector modifies the image in such a way that it will retain the exact dimensions on the projector screen as it does on the computer screen. It does this all without compromising the quality of the image as well – no harsh pixilation, no color loss.
Color is another great feature of this type of projector. Colors are projected flawlessly to the screen. Unlike old projectors, an LCD one is much more like a television. You can even control the red, green and blue color intensity levels. Also controllable are contrast and brightness, so you'll be able to easily modify your image to fit whatever lighting conditions are present.
If you are considering the purchase of an LCD projector, there are a few things that you should know before setting foot in a store. Perhaps the most important piece of information you need to have is the typical distance you intend to have the projector away from the screen. Every projector fits into a specific distance range and will only perform best when it's used within those parameters.
Also, you should know what kind of lighting conditions are typically going to be present when you're using the LCD projector. This will indicate how bright of a projector you'll require.
Finally, you need to choose between two classes of resolution for your projector. SVGA is a lower resolution, but can offer higher brightness. This type is great for projecting still images in an office setting where it's difficult to lower the brightness of the lights sufficiently to use a normal projector. XGA has the higher resolution and is perfect for little details and the best for moving images. Many people use an LCD projector with XGA resolution for their home theatre needs!
Truly, an LCD projector is a wonderful invention with a multitude of applications. While the cost of these projectors can be a little on the high side, the quality you'll get is well worth every penny.
Summary:
People everywhere are choosing an LCD projector over an ordinary projector because of the amazing advantages they can expect to get. In fact, the resolution and color these projectors boast are so good, many people use an LCD projector home theatre needs!
Brooke Hayles Check Out More Helpful Information About LCD Projector For FREE! Visit LCD Projector Vault now!
The specific advantages of this projector over an ordinary one are numerous. For starters, all images (moving or still) are incomparably sharper when coming from an LCD projector. This feature is one that is most apparent during presentations where the text size of numbers is small, but surprisingly readable. Because of this, presenters can display more information on a single image without worrying about weather or not their audience will be able to read it.
Another advantage of this type of projector is the fact that images are not at all distorted. When video information is fed from a computer to the LCD projector, the projector modifies the image in such a way that it will retain the exact dimensions on the projector screen as it does on the computer screen. It does this all without compromising the quality of the image as well – no harsh pixilation, no color loss.
Color is another great feature of this type of projector. Colors are projected flawlessly to the screen. Unlike old projectors, an LCD one is much more like a television. You can even control the red, green and blue color intensity levels. Also controllable are contrast and brightness, so you'll be able to easily modify your image to fit whatever lighting conditions are present.
If you are considering the purchase of an LCD projector, there are a few things that you should know before setting foot in a store. Perhaps the most important piece of information you need to have is the typical distance you intend to have the projector away from the screen. Every projector fits into a specific distance range and will only perform best when it's used within those parameters.
Also, you should know what kind of lighting conditions are typically going to be present when you're using the LCD projector. This will indicate how bright of a projector you'll require.
Finally, you need to choose between two classes of resolution for your projector. SVGA is a lower resolution, but can offer higher brightness. This type is great for projecting still images in an office setting where it's difficult to lower the brightness of the lights sufficiently to use a normal projector. XGA has the higher resolution and is perfect for little details and the best for moving images. Many people use an LCD projector with XGA resolution for their home theatre needs!
Truly, an LCD projector is a wonderful invention with a multitude of applications. While the cost of these projectors can be a little on the high side, the quality you'll get is well worth every penny.
Summary:
People everywhere are choosing an LCD projector over an ordinary projector because of the amazing advantages they can expect to get. In fact, the resolution and color these projectors boast are so good, many people use an LCD projector home theatre needs!
Brooke Hayles Check Out More Helpful Information About LCD Projector For FREE! Visit LCD Projector Vault now!
Friday, May 1, 2009
Should Businesses Buy a Projector or an LCD Display?
With the price of large (>32”) LCD displays decreasing rapidly and new functionalities being added to LCD displays, does it still make sense for businesses to buy a projector vs. an LCD display?
Some of the variables to consider when evaluating this question are product quality, price, picture quality, screen size and other such considerations. We discuss these and other factors from a typical business organization perspective. Read other articles and make your informed judgement.
Product Life: LCD TVs or displays typically have a backlight life of 30,000 to 60,000 hours (ie, if you have the display on for ~6 hours every day, the backlight will last for 16 years). Even then the backlight can be replaced in most LCD displays. A projector bulb typically has a life of 2,000 hours.
Price Considerations: A basic projector can be found for INR 25,000. However, if the projector is going to be used for video conferencing or board room presentation, a high resolution, good contrast ratio and saturated colour projector would be required. The cost of such a projector is close to INR 1 lakh. Thereafter, you need to factor in the prices of projector bulb and projection screens. A typical projector bulb needs to be replaced almost every year or two with bulbs costing Rs 20,000+ per bulb. We have added these costs over a five-year period to compare a projector vs. an LCD (see chart below). With 46” LCD TV or display costing around Rs 135,000 – Rs 150,000 and dropping, price becomes less of an issue when considering whether to buy a Projector or LCD display
Figure: Total Cost of Ownership Comparison for Projector vs. LCD Display
Basic Device capital cost for projector is INR 70,000 and that of an LCD display is INR 150,000, Projector Screen Capital Cost (Wall Mount Screens INR 5-15K) is INR 10,000, Consumable cost of the projector is 20,000 x 3 = INR 60,000, Consumable life of a projector is 2,000hrs and that of an LCD display is 60,000hrs and the Cost of Ownership of a projector is Rs.140, 000/- and Rs.150, 000/- for an LCD display.
Assume: 5years of usage @ 5hrs a day ~ 6600hrs of use. This translates to 4 lamps in 5 years requiring the customer to buy 3 lamps in addition to 1 supplied with machine.
What is clear from the above figure is that a Full High Definition 46” LCD Display is, at best, only marginally costlier than a XGA Projector of ~2500AL. Additional costs of low screen installation costs and lower device loss costs are purely additional.
Picture Quality: Projectors such as a DLP or LCD projector use glass panels to combine red, green and blue colours to create the image. When sitting close to screen, the viewer can see the different colours at the borders of an image, aptly described as the rainbow effect. The rainbow effect takes away from the image quality and can give headaches. High-end projectors have been able to reduce the rainbow effect, however the problem still remains and these high-end projectors cost more. LCD TV or LCD displays do not have rainbow effect issues and the quality of the picture is good at close range.
Rather, projectors cannot compare with the picture quality for an LCD display. The vividness of the colours, the contrast ratio, the colour saturation and image sharpness are much better for an LCD display than a projector. When viewing a projector image, especially in ambient light, the viewer has to dim the lights or close the curtains unless the business has purchased an even more costly higher lumen projector. Not true with LCD displays, as the brightness and colour quality are much better.
Viewing angles used to be an issue with LCD displays but this issue is no longer true. Most LCD displays can be viewed from up to 176 degrees.
Dead or Stuck Pixels: Projectors can suffer from dead pixels and LCD displays can suffer from stuck pixels. Both dead pixels and stuck pixels result in white spots in the projected image. However, the manufacturers of both technologies have worked hard to minimize such issues and in most cases they provide warranty against such issues.
Screen Size: A common thought is that screen size is not an issue for most projectors as the thinking is that the projector image can be made larger by moving the projector away from the screen. This is not true as the image quality deteriorates as the image becomes larger. With projectors, most buyers opt for maximum optimized projector image sizes from 76-inches to 120-inches and the actual working normal projection image used is much smaller. Today, if businesses need a large LCD display in the maximum projector image size, a wide variety of competitive LCD displays can be found in this range.
Portability: Projectors are easy to carry and move around. For a business this could be a value-add or a drawback. LCD displays are durable and can be moved however they are not as light as projectors.
Power Consumption: Projector power consumption varies more from unit to unit, with brighter conference projectors requiring more power than smaller portable projectors. It is hard to compare the two technologies on this performance parameter.
Connectivity: Most LCD displays have more number and different types of ports than projectors. As a result more types of devices can be connected to an LCD display than a projector.
Other Value-Add Features: New features are appearing in LCD displays that could be quite valuable for businesses. For example, touch screen features on LCD displays allow for LCD displays to be used as digital whiteboards where the data written on the display can easily get captured electronically in a text document.
For more information on Sharp’s LCD monitors, check out Sharp’s official LCD monitor site! http://lcddisplay.sbsil.com/
Shweta Sharma is a regular article contributor on many topics. She has vast exposure in writing article on various topics like LCD technology, LCD Monitors Review etc.
Some of the variables to consider when evaluating this question are product quality, price, picture quality, screen size and other such considerations. We discuss these and other factors from a typical business organization perspective. Read other articles and make your informed judgement.
Product Life: LCD TVs or displays typically have a backlight life of 30,000 to 60,000 hours (ie, if you have the display on for ~6 hours every day, the backlight will last for 16 years). Even then the backlight can be replaced in most LCD displays. A projector bulb typically has a life of 2,000 hours.
Price Considerations: A basic projector can be found for INR 25,000. However, if the projector is going to be used for video conferencing or board room presentation, a high resolution, good contrast ratio and saturated colour projector would be required. The cost of such a projector is close to INR 1 lakh. Thereafter, you need to factor in the prices of projector bulb and projection screens. A typical projector bulb needs to be replaced almost every year or two with bulbs costing Rs 20,000+ per bulb. We have added these costs over a five-year period to compare a projector vs. an LCD (see chart below). With 46” LCD TV or display costing around Rs 135,000 – Rs 150,000 and dropping, price becomes less of an issue when considering whether to buy a Projector or LCD display
Figure: Total Cost of Ownership Comparison for Projector vs. LCD Display
Basic Device capital cost for projector is INR 70,000 and that of an LCD display is INR 150,000, Projector Screen Capital Cost (Wall Mount Screens INR 5-15K) is INR 10,000, Consumable cost of the projector is 20,000 x 3 = INR 60,000, Consumable life of a projector is 2,000hrs and that of an LCD display is 60,000hrs and the Cost of Ownership of a projector is Rs.140, 000/- and Rs.150, 000/- for an LCD display.
Assume: 5years of usage @ 5hrs a day ~ 6600hrs of use. This translates to 4 lamps in 5 years requiring the customer to buy 3 lamps in addition to 1 supplied with machine.
What is clear from the above figure is that a Full High Definition 46” LCD Display is, at best, only marginally costlier than a XGA Projector of ~2500AL. Additional costs of low screen installation costs and lower device loss costs are purely additional.
Picture Quality: Projectors such as a DLP or LCD projector use glass panels to combine red, green and blue colours to create the image. When sitting close to screen, the viewer can see the different colours at the borders of an image, aptly described as the rainbow effect. The rainbow effect takes away from the image quality and can give headaches. High-end projectors have been able to reduce the rainbow effect, however the problem still remains and these high-end projectors cost more. LCD TV or LCD displays do not have rainbow effect issues and the quality of the picture is good at close range.
Rather, projectors cannot compare with the picture quality for an LCD display. The vividness of the colours, the contrast ratio, the colour saturation and image sharpness are much better for an LCD display than a projector. When viewing a projector image, especially in ambient light, the viewer has to dim the lights or close the curtains unless the business has purchased an even more costly higher lumen projector. Not true with LCD displays, as the brightness and colour quality are much better.
Viewing angles used to be an issue with LCD displays but this issue is no longer true. Most LCD displays can be viewed from up to 176 degrees.
Dead or Stuck Pixels: Projectors can suffer from dead pixels and LCD displays can suffer from stuck pixels. Both dead pixels and stuck pixels result in white spots in the projected image. However, the manufacturers of both technologies have worked hard to minimize such issues and in most cases they provide warranty against such issues.
Screen Size: A common thought is that screen size is not an issue for most projectors as the thinking is that the projector image can be made larger by moving the projector away from the screen. This is not true as the image quality deteriorates as the image becomes larger. With projectors, most buyers opt for maximum optimized projector image sizes from 76-inches to 120-inches and the actual working normal projection image used is much smaller. Today, if businesses need a large LCD display in the maximum projector image size, a wide variety of competitive LCD displays can be found in this range.
Portability: Projectors are easy to carry and move around. For a business this could be a value-add or a drawback. LCD displays are durable and can be moved however they are not as light as projectors.
Power Consumption: Projector power consumption varies more from unit to unit, with brighter conference projectors requiring more power than smaller portable projectors. It is hard to compare the two technologies on this performance parameter.
Connectivity: Most LCD displays have more number and different types of ports than projectors. As a result more types of devices can be connected to an LCD display than a projector.
Other Value-Add Features: New features are appearing in LCD displays that could be quite valuable for businesses. For example, touch screen features on LCD displays allow for LCD displays to be used as digital whiteboards where the data written on the display can easily get captured electronically in a text document.
For more information on Sharp’s LCD monitors, check out Sharp’s official LCD monitor site! http://lcddisplay.sbsil.com/
Shweta Sharma is a regular article contributor on many topics. She has vast exposure in writing article on various topics like LCD technology, LCD Monitors Review etc.
Friday, April 17, 2009
Best Projectors
Best Projectors
What is behind a successful presentation or an exciting theatre like experience of watching a movie in your drawing room? It’s a projector that is responsible for making this experience more realistic. Generally speaking, a projector is a electronic device that are used for displaying an image, movie or multimedia presentation on a projection screen or similar surface for the view of an audience. A movie seen in total darkness with the aid of a projector appears, as they are experienced in the theatre. That is why the projection television takes home cinema to the ultimate limits unlike the viewing experience restricted by the physical constraints imposed by a TV tube. That is why with a front projector system installed in your drawing room an entire wall of your lounge becomes your TV screen.
The projectors are quite popular electronic devices and have various uses. There are many companies that manufacture some of the best selling models. They provide the projectors for different application needs. Some of the most common types of projectors are
Video projectors can be classified further according to the technology that is used with them. The most common video projectors are LCD projector, CRT projector, DLP projector, LCOS projector.
Transparency projectors are classified as Movie projector, Slide projector, Overhead projector, Magic Lantern, Enlarger.
Other types of projectors include Movie projector, handheld projector, Opaque projector, etc.
With the increasing use of projectors and the improving technology, projectors are getting better and better with each day. The projectors today exhibit many features that are beneficial to the users as well as for the audience. Some of the important projector features are listed below:
Most of the projectors you will find today are portable and easy to carry along with you. They come at the size of a laptop and with minimum cables that allows the user the ease to pack them in a small carrying case and to carry in flights or even in the backseat of your car.
Projector brightness is also an important while choosing a projector and is measured in ANSI lumens. The ultra-portable projectors come with as low as 350 lumens that are best for lights-off presentations, and go all the way up to 2500 lumens. A projector with at least 800 lumens can be efficiently used in a room with some ambient lighting that cannot be avoided.
Mage quality in a projector can be simply adjusted according to the laptop or PC’s resolution, contrary to the common opinion that while buying projector think first about resolution and the image quality.
With all the high-end features, it is not at all difficult to find a projector that fits well with your budget. Compare projectors on specs and pricing before you buy one. Also be sure to include all of the aspects of the process that results in the best value.
Looking for more information on Best Projectors check out www.projectorbest.com" target="_blank">www.projectorbest.com”">www.projectorbest.com your guide to Best Projectors.
What is behind a successful presentation or an exciting theatre like experience of watching a movie in your drawing room? It’s a projector that is responsible for making this experience more realistic. Generally speaking, a projector is a electronic device that are used for displaying an image, movie or multimedia presentation on a projection screen or similar surface for the view of an audience. A movie seen in total darkness with the aid of a projector appears, as they are experienced in the theatre. That is why the projection television takes home cinema to the ultimate limits unlike the viewing experience restricted by the physical constraints imposed by a TV tube. That is why with a front projector system installed in your drawing room an entire wall of your lounge becomes your TV screen.
The projectors are quite popular electronic devices and have various uses. There are many companies that manufacture some of the best selling models. They provide the projectors for different application needs. Some of the most common types of projectors are
Video projectors can be classified further according to the technology that is used with them. The most common video projectors are LCD projector, CRT projector, DLP projector, LCOS projector.
Transparency projectors are classified as Movie projector, Slide projector, Overhead projector, Magic Lantern, Enlarger.
Other types of projectors include Movie projector, handheld projector, Opaque projector, etc.
With the increasing use of projectors and the improving technology, projectors are getting better and better with each day. The projectors today exhibit many features that are beneficial to the users as well as for the audience. Some of the important projector features are listed below:
Most of the projectors you will find today are portable and easy to carry along with you. They come at the size of a laptop and with minimum cables that allows the user the ease to pack them in a small carrying case and to carry in flights or even in the backseat of your car.
Projector brightness is also an important while choosing a projector and is measured in ANSI lumens. The ultra-portable projectors come with as low as 350 lumens that are best for lights-off presentations, and go all the way up to 2500 lumens. A projector with at least 800 lumens can be efficiently used in a room with some ambient lighting that cannot be avoided.
Mage quality in a projector can be simply adjusted according to the laptop or PC’s resolution, contrary to the common opinion that while buying projector think first about resolution and the image quality.
With all the high-end features, it is not at all difficult to find a projector that fits well with your budget. Compare projectors on specs and pricing before you buy one. Also be sure to include all of the aspects of the process that results in the best value.
Looking for more information on Best Projectors check out www.projectorbest.com" target="_blank">www.projectorbest.com”">www.projectorbest.com your guide to Best Projectors.
Sunday, April 12, 2009
The Best Projector Reviews
Since there are different kinds of projectors manufactured by different companies, this website will help you to know which brand is the best choice when buying any type of projector.
The devices used in displaying images, text or videos on a screen or any identical surface are called projectors. There are various types of projectors available in the market that can be sorted into three major kinds:
•Video Projectors - made to generate images by using a lens system from a video signal with very bright light. When the image is formed it can be projected on a flat white clean surface. The types of video projectors are the following:
o Liquid Crystal on Silicon (LCOS) projectors
o Digital Light Processing (DLP) projectors
o Liquid Crystal Display (LCD) projectors
o Cathode Ray Tube (CRT) projectors
•Transparency Projectors - which show or display images only that are written on dedicated plastics or transparencies and films. Best examples of the transparency projectors are overhead projectors, movie projectors, and slide projectors as the image still appears from an image which has light transmitted through it; the magic lantern is the ancient device in this form.
Opaque Projectors - these devices show images from opaque materials like books through a system of imaging lenses harnessed and reflected by light.
Since there are different kinds of projectors manufactured by different companies, this website helps to know which brand is the best choice when buying any type of projector.
This means that there are numerous products available in the market but selecting the best needs a careful analysis of the pros and cons of different units.
Because of the fact that some projectors are more costly than the others, this will give you the freedom to choose the most popular brand names.
The following are the kinds of projectors available in the website for which reviews are provided:
•Video projectors
o LCD projector
o CRT projector
o DLP projector
o LCOS projector.
•Transparency projectors
o Movie projector
o Slide projector
o Overhead projector
o Magic Lantern
o Enlarger.
•Others
o Movie projector
o Handheld projector
o Opaque projector.
Before buying a projector, it is important to understand the purpose and functions of the product instead of the cost. That's the reason the website is carefully created to provide helpful information before making the decision of buying and also to ensure you make the right choice.
Some of the projector reviews available at the website are:
•Epson PowerLite S3 LCD Projector - this kind of projector give a larger image view that can fill your home, office or even a classroom. It is the combination of affordable and easy to use type of projector. It has SCGA ultra portable that can deliver up to 1600 ANSI of lumens.
•Zoombox DVD Entertainment Projector - this projector is manufactured with an easy to connect gaming console, cameras, cable box, VCR and many more. It can display a 60-inch picture diagonally when hooked up within 8 feet from the wall or ceiling.
•Mitsubishi PK10 Pocket Projector - is a type of projector weighing only one pound that can be easily carried, even in one hand and is packed with numerous functions and capabilities when it comes to images or movie presentation.
The website also offers helpful projector tips like:
•Buying a Projector - factors to be considered are
o Ease of Use
o Brightness
o Image Quality
o Portability or Durability
•Types of Projector - it is important to know the three classifications:
o CRT or the cathode ray tube projectors
o LCD or the liquid crystal display projectors
o DLP or digital light projection type of projectors
•The Best Projectors - a good way of choosing the right projector is to compare all the specifications of all units. To know the best price for the projector you need to be sure to balance all of the features of an equation that will result in the best value. There are kinds of projectors you may find with a lower price but do not have the brightness you are looking for. Most of the time, a good combination of brightness and a cheap price is the best bargain.
For more information on Best Projectors please visit our website.
The devices used in displaying images, text or videos on a screen or any identical surface are called projectors. There are various types of projectors available in the market that can be sorted into three major kinds:
•Video Projectors - made to generate images by using a lens system from a video signal with very bright light. When the image is formed it can be projected on a flat white clean surface. The types of video projectors are the following:
o Liquid Crystal on Silicon (LCOS) projectors
o Digital Light Processing (DLP) projectors
o Liquid Crystal Display (LCD) projectors
o Cathode Ray Tube (CRT) projectors
•Transparency Projectors - which show or display images only that are written on dedicated plastics or transparencies and films. Best examples of the transparency projectors are overhead projectors, movie projectors, and slide projectors as the image still appears from an image which has light transmitted through it; the magic lantern is the ancient device in this form.
Opaque Projectors - these devices show images from opaque materials like books through a system of imaging lenses harnessed and reflected by light.
Since there are different kinds of projectors manufactured by different companies, this website helps to know which brand is the best choice when buying any type of projector.
This means that there are numerous products available in the market but selecting the best needs a careful analysis of the pros and cons of different units.
Because of the fact that some projectors are more costly than the others, this will give you the freedom to choose the most popular brand names.
The following are the kinds of projectors available in the website for which reviews are provided:
•Video projectors
o LCD projector
o CRT projector
o DLP projector
o LCOS projector.
•Transparency projectors
o Movie projector
o Slide projector
o Overhead projector
o Magic Lantern
o Enlarger.
•Others
o Movie projector
o Handheld projector
o Opaque projector.
Before buying a projector, it is important to understand the purpose and functions of the product instead of the cost. That's the reason the website is carefully created to provide helpful information before making the decision of buying and also to ensure you make the right choice.
Some of the projector reviews available at the website are:
•Epson PowerLite S3 LCD Projector - this kind of projector give a larger image view that can fill your home, office or even a classroom. It is the combination of affordable and easy to use type of projector. It has SCGA ultra portable that can deliver up to 1600 ANSI of lumens.
•Zoombox DVD Entertainment Projector - this projector is manufactured with an easy to connect gaming console, cameras, cable box, VCR and many more. It can display a 60-inch picture diagonally when hooked up within 8 feet from the wall or ceiling.
•Mitsubishi PK10 Pocket Projector - is a type of projector weighing only one pound that can be easily carried, even in one hand and is packed with numerous functions and capabilities when it comes to images or movie presentation.
The website also offers helpful projector tips like:
•Buying a Projector - factors to be considered are
o Ease of Use
o Brightness
o Image Quality
o Portability or Durability
•Types of Projector - it is important to know the three classifications:
o CRT or the cathode ray tube projectors
o LCD or the liquid crystal display projectors
o DLP or digital light projection type of projectors
•The Best Projectors - a good way of choosing the right projector is to compare all the specifications of all units. To know the best price for the projector you need to be sure to balance all of the features of an equation that will result in the best value. There are kinds of projectors you may find with a lower price but do not have the brightness you are looking for. Most of the time, a good combination of brightness and a cheap price is the best bargain.
For more information on Best Projectors please visit our website.
Wednesday, April 8, 2009
Video Projector TV Technology
For the ultimate home theater experience, serious viewers need a video projector and screen combination. Nothing compares to the image quality and screen size that this type of set-up can afford. A variety of video projectors are now on the market, giving consumers many good options for purchase. Today's video projectors use different kinds of technology, including cutting-edge liquid crystal display (LCD) and digital light processing (DLP) methods, and each kind has its pros and cons. Most projectors are compact and easy to assemble, requiring replacement of a light bulb every thousand hours or so. For maximum effect, projectors are best used in a darkened room, just like a movie theater. Before making the purchase of a video projector, be sure to consider the factors covered below. The usual issues that apply to video devices also apply to projectors: Things like resolution, brightness, contrast, pixel ratio, color quality, number of inputs for external devices, aspect ratio and overall size are important. Of course, price counts also.
Because there's only so much room in your home, think about how much space you're willing to devote to the video projector set-up before buying. It's wise to invest in a projector that's compact and easy to move. Portability can make all the difference. A compact projector can be easily positioned in a room or completely dismantled. You can try out different arrangements at home and find out the most ideal location for viewing.
Before buying, look for what's known as the ANSI (American National Standards Institute) Lumens rating. This rating indicates the brightness produced by the video projector. If the model has a rating of 1,000 or more, it will work well in your home. Keep in mind that the size of your screen and the distance you'll be sitting from it have an influence on brightness.
Contrast ratio is another important factor to think about before buying. Contrast ratio works in conjunction with brightness to deliver a strong image. With a high contrast ratio, viewers will get images with bright whites and deep blacks. Decent contrast ratios start at 1500:1 and go up. 2,000:1 is ideal for home theater.
Pixel density is also critical to the quality of your projector. Generally speaking, a high pixel density equals a good picture. Viewers of high definition programming should be especially aware of pixel density when shopping for a video projector and find a model with a very high pixel count. A count of about 1024 x 728 is fine for regular DVD viewing. HDTV requires a count of 1280 X 720 or 1920 X 1080, depending on the signal.
Think about what the projector will be used for before deciding on a particular model. Most video projectors work best for showing DVDs of movies or special sports events. While prices for projectors are decreasing, on average, they now start at around $3000 and go up to $10,000. Check out New Technology TV for more information.
About the Author
John Richardson is a popular reviewer of consumer electronics and has served as a product development consultant for several consumer electronics manufacturers including Dish Network, visit his website: Big Mouth TV
Tuesday, April 7, 2009
Video Projectors ? Advice On Choosing The Right Model For Home Or Business
Video Projectors ? Advice On Choosing The Right Model For Home Or Business
As video projectors become more affordable then more people are using them both at work and at home. You might be thinking that projectors are all alike and the more you spend the better it will be. Well this is not strictly true. The more expensive projectors will be of a higher standard, but you might not experience any benefit if you do not choose the correct model. This is why we have written this article to try and guide you and help you choose the model most suited to you.
Before any purchase it is important to have a think about what you will be using it for and in what kind of environment. The business user will have very different requirements to someone wanting to set up a home cinema. Companies are now marketing hybrid projectors that claim to be able to be used for both home cinema and business. These two environments are very different though and will need projectors designed specifically to be able to handle these two very different uses. As you read the rest of the article you will begin to understand what you need to look out for when purchasing your video projector.
LCD or DLP
Both are excellent formats and which you choose will depend on your use. The business user will be more suited to an LCD projector due to the increased brightness. The home user on the other hand would be better to opt for a DLP projector as these will give a more cinematic experience.
Brightness
Think about the level of ambient light in the room where you will be using your projector. In the home cinema you will hopefully have control of the level of light so this will not be an issue. If you are using a room at home that has ambient light then you will need to opt for a brighter projector. In the business arena you are likely to be presenting in very bright rooms with standard office lighting and windows. A good projector for business use will need to have a high brightness level.
Brightness is measured in ANSI lumens. For home cinema you should be looking at projectors that have around 700 ANSI lumens brightness and for business projectors you will need between 1000 and 1500.
Color
The color, gray-scale performance, and video playback, are only really important to the home user as they will give more natural and detailed videos.
Contrast
There is no point spending money on a high contrast video projector for business use or use in a room at home that has significant ambient light as your eyes will not notice the benefit. If you have a dedicated cinema room at home then it will be worth looking at projectors with contrast ratios of 400:1 or higher. If you are looking for a projector for business use then there is no point by one with a ratio of higher than 400:1
Portability
This will probably only be an issue for a business user. If you travel around a lot and take your projector with you then the more compact and light the better. It is possible to buy extremely light projectors.
The home user may not be concerned too much with size and weight, but it is worth considering how you will set your projector up at home. Will it be fixed to the ceiling or on a stand? If you have it on the ceiling you should look for a projector which comes with a remote control as this will make adjusting settings a lot easier.
We hope that this look at the differences with video projectors will help you make your decision.
Find more articles by Steve Jones at http://www.a1-lcdprojectors.com
As video projectors become more affordable then more people are using them both at work and at home. You might be thinking that projectors are all alike and the more you spend the better it will be. Well this is not strictly true. The more expensive projectors will be of a higher standard, but you might not experience any benefit if you do not choose the correct model. This is why we have written this article to try and guide you and help you choose the model most suited to you.
Before any purchase it is important to have a think about what you will be using it for and in what kind of environment. The business user will have very different requirements to someone wanting to set up a home cinema. Companies are now marketing hybrid projectors that claim to be able to be used for both home cinema and business. These two environments are very different though and will need projectors designed specifically to be able to handle these two very different uses. As you read the rest of the article you will begin to understand what you need to look out for when purchasing your video projector.
LCD or DLP
Both are excellent formats and which you choose will depend on your use. The business user will be more suited to an LCD projector due to the increased brightness. The home user on the other hand would be better to opt for a DLP projector as these will give a more cinematic experience.
Brightness
Think about the level of ambient light in the room where you will be using your projector. In the home cinema you will hopefully have control of the level of light so this will not be an issue. If you are using a room at home that has ambient light then you will need to opt for a brighter projector. In the business arena you are likely to be presenting in very bright rooms with standard office lighting and windows. A good projector for business use will need to have a high brightness level.
Brightness is measured in ANSI lumens. For home cinema you should be looking at projectors that have around 700 ANSI lumens brightness and for business projectors you will need between 1000 and 1500.
Color
The color, gray-scale performance, and video playback, are only really important to the home user as they will give more natural and detailed videos.
Contrast
There is no point spending money on a high contrast video projector for business use or use in a room at home that has significant ambient light as your eyes will not notice the benefit. If you have a dedicated cinema room at home then it will be worth looking at projectors with contrast ratios of 400:1 or higher. If you are looking for a projector for business use then there is no point by one with a ratio of higher than 400:1
Portability
This will probably only be an issue for a business user. If you travel around a lot and take your projector with you then the more compact and light the better. It is possible to buy extremely light projectors.
The home user may not be concerned too much with size and weight, but it is worth considering how you will set your projector up at home. Will it be fixed to the ceiling or on a stand? If you have it on the ceiling you should look for a projector which comes with a remote control as this will make adjusting settings a lot easier.
We hope that this look at the differences with video projectors will help you make your decision.
Find more articles by Steve Jones at http://www.a1-lcdprojectors.com
Monday, April 6, 2009
Home Theater Projectors
Going to the movies is a common and popular recreation especially for young professionals living a very stressful life of running corporate businesses. However, for some who cannot afford to waste time traveling to and from movie theaters, the answer to this recreational endeavor might be just inside your own living room. Bring home the sight and sound of movie theaters with your very own home theater system. The best home theater set up may indeed include high quality components that may bring forth the entire movie theater experience without having to drive from your house to the movie theater spending time and effort tiding heavy traffic. This modern innovation will grant you the relaxation and experience real life movie theaters provide.
Having the basic components such as the big screen and speakers with clear and flicker free images from a high quality DVD may provide the almost real movie theater experience. Home theater experts recommend that before you decide on the final set-up and equipments for your home theater system, the size of the place maybe the first consideration. If you have a small room for your home theater system, the television set may be best placed in the center with three speakers placed on the left, right and center. This might be enough to provide the surround sound you get in a movie theater. However, if you have a bigger room, a home theater projector might be best to provide the big screen requirement. Home theater projector screens can provide the real-life movie theater experience. It is therefore necessary that you have a huge room for your home theater system, in combination with your home theater projector and home theater projector screen, adding more speakers around the room could be a good idea. A subwoofer may also help to provide the best surround sound that will enable a movie theater surround sound come in to your living room.
There are various designs and models you can choose from for your home theater projector. You may need to understand each of their features before you decide on buying one. It may also be necessary for you to require the services of a home theater designer in order to complete the home theater package that will give you the best entertainment. This will avoid having to spend unreasonably for your home theater system including your home theater projector. Buying unrealistically huge capacity equipment for your home theater is possible, especially if you do not know what the choices are and their differentiations. Your home theater designer may also provide options that may not require a television set for your home theater. How is this so? The reason for this is the technological innovations provided by your computer and home theater projectors. Home theater projectors like InFocus screenplay models maybe used with computers and small room set-up. Home theater projectors are also lightweight and maybe transported easily. For this reason, the use of home theater projectors for business presentations is helpful.
Home theater projectors and home theater projector screens may help provide the theater like experience, even for business this set-up may be extremely useful and thus is getting to be popular. Your home and office home theater system setup is an innovation only a few intelligent consumers can avail of. However, I am sure that knowing all these options and the basic television, three speakers and DVD player may be worthy for people who wants a home theater, you may not really need a home theater projector if the room for your home theater system is not very huge. Enjoy theatrical experience right in your living room by intelligently researching your possible option. You may then experience the relaxation movie theaters give without having to drive to the movie theater.
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Sunday, March 29, 2009
Save Money - Use Projector Bulbs
Halogen lights have become popular as an overhead projector light. These projector bulbs provide high-intensity light that gives the presentation better lighting and dimming that ensure positive image precision. Here are the characteristics of the projector bulbs that you should consider in purchasing one. The projector bulb comes in many design, brand names, model, wattage and voltage. To identify whether the projector bulbs would fit your projector equipment, make sure learn your projector bulbs before purchasing. These bulbs have been used in:
- Business presentations
- School reporting
- Home-based cinema
1. Type and Shape
Check the base and note its type and shape. Make sure you know what the brand and model number of the projector bulbs for your projector - they should be listed in the user manual. If you happen to have lost your user manual, try the company website - they likely offer for download the user manuals that you can print off. This would ensure you don't go to the store and end up coming back with an incompatable bulb. If you are not aware of the brand, describe the shape of the projector bulbs base to the attendant at the light store. You could specify by telling the assistant about the shape of the bulb itself.
2. Size Matters
The size of the glass bulb is important. Basically, projector bulbs differ in the sizes of the bulbs' envelope or casing. The size of the projector bulbs would distinguish your bulb purchase if it is a foreign brand, if your projector is used in movie projectors or for slide show projector alone.
3. Knowing Is Half The Battle
The tungsten filament is a wire that reacts to the heat that occurs when the lamp is turned on. The shape of the filament would help you ask for the exact model or projector bulbs. Since each model makes use of varieties of wires and places the wire in different locations on the bulb, it would be easier for you to break down your choices for your projector bulbs? purchase.
4. The voltage and wattage
These items determine the overall output of the projector bulbs. The projector bulb that gives out brighter light does not necessarily mean that the wattage is higher than the bulb that produces a dimmer light. Make sure that you are aware of the consuming voltage and wattage of your projector bulbs.
Note:
All of the bulbs that are purchased for projectors are coded into three letters (e.g. ELH, DEK). These letters are assigned to all models that have the same filament reactivity, wattage and voltage. Since the material of the glass base does not have anything to do with the codes, you could choose your own style and could still purchase the exact bulb needed. These codes have no connection with the brand of the projector bulbs. This is done because choosing the perfect projector bulbs is vital in the handling of the projector, the bulb manufacturers follow a coding for their costumers to purchase easily and avoid confusion. Knowing this three letter code would be an advantage for you and the assistant at the store.
- It is advisable to purchase a lower-powered projector bulb
- Bulbs last up to 2,000 to 4,000 hours, depending on the usage amount of the projector
- Projector bulbs are made up of halogen lights
About the Author:
For more great projector bulb related articles and resources check out http://www.light-bulb-stop.com
Thursday, March 26, 2009
Home Theater - Plasma TV VS Projectors
Many homeowners are struggling with an important, electronic question: What is the ideal display for my home theater? Many people have fought this debate, but I'll try to make clear some important considerations.
The most important detail to consider when deciding between a projector and a large plasma television is ambient light. A room with lots of windows presents a problem for a projector because every little bit of ambient lighting degrades the projected image. The ideal environment for a projector is one where you have total control over the lighting. If your home theater uses a projector, you are limited to using it when you can eliminate other light. A plasma screen can be used anyplace, anytime.
Assuming your home theater has blackout curtains, or exists deep underground; let's examine differences between a plasma television and a projector. One advantage of a projector is that you can get a much larger picture than is available in plasma. Projectors can produce images comparable to an 81-inch screen and larger. This just isn't possible with a plasma screen. However, plasma's have the advantage of not needing any amount of space. A projector must have a long enough corridor to project its image on the wall or screen. To get an 81-inch or greater image, you need a decent distance between the projector and the target. Second, a projector's image is dependent on more than the quality of the projector; you must be projecting onto a specialized surface or you lose detail. A top of the line HD projector with a very high native resolution would be wasted if you were just projecting the image onto a wall. You need an equally high quality screen with features such as a matte finish to eliminate reflection and glare. A plasma display requires no additional equipment.
Overall, a projector has the potential of creating a beautiful image, but it needs too much to work effectively. If you're creating a private movie theater with lighting control and an investment in a screen, mounting equipment, and blackout curtains, then a projector is your piece of equipment. For everyone else, I suggest a plasma television.
About the Author
Jakob Culver is founder of the website www.plasmatvarena.com providing information, articles and reviews about plasma tv's. To find more articles like this one visit the site http://www.plasmatvarena.com/
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How to Select the Right Home Theater Projector
How to Pick the Correct Projector for Your Home Theater
You're finally making the jump to the holy grail of home theater video displays; the front projection system. There's nothing else that delivers that really big, impressive video image like a front projection system. It's how you get that real cinema experience in your home theater. Home theater projector prices have plummeted in recent years, and the size of the units have shrunk right along with the prices. No more do have to live with a coffin sized box on your ceiling. As sizes have decreased, the image quality and brightness have actually improved dramatically. You'll notice image quality and brightness are two separate issues.
How do choose the correct home theater projector for your application from the myriad of projectors on the market today? There are so many different units, each with their strengths and weaknesses. First of all, there are two main projection technology categories, analog and digital. Analog projectors are based on CRTs, a mature technology that's been around for decades. Those are the projectors with the separate red, green and blue picture tubes and three lenses on the front. The other projectors use one of the newer digital technologies. These projectors have a single lens on the front. There are three major types of digital projectors on the market today; LCD (Liquid Crystal Display), DLP (Digital Light Processing) and LCOS (Liquid Crystal On Silicon). Each type of digital projector has it's advantages too.
You need to evaluate your specific requirements in order to make the proper decision. First of all, look at the room. Is it a dedicated home theater or a multi use room? Do you have complete control of the light? What aesthetic concerns are you dealing with? What is your projector budget? How large of an image do you want? Do you watch primarily DVD movies, TV movies, sports, or other TV programming? What specific source components will you be using with your projector now or in the future? Is picture quality the most important thing, or are other concerns, such as noise, size or brightness more important? Are you installing the projector yourself, or are you hiring a custom installer to do the installation for you? Where must the projector be placed? Can you get the required video and control cables to that location? These questions must be answered to ensure you get the proper projector for your home theater. If you are using a custom installer, they will take into account these factors and specify the appropriate unit for you.
Dramatic improvements in the picture quality of digital projectors notwithstanding, CRT projectors still deliver the most film like image. They have no pixel structure and deliver rich, deep blacks. Properly set up and calibrated, with a good video processor, and with the proper size screen, a CRT projector will deliver simply stunning picture quality. You'll need to use a good quality projection screen, typically with 1.3 - 2.5 gain depending upon the size, viewing angel and ambient light in the room. Prices on really great CRT projectors have fallen like a rock in the last year or two. You can get a 9" CRT projector that used to cost $35,000 to $50,000, for less than a third of that figure now. Many firms no longer make CRT projectors due to the decreased demand for projectors using this technology. In addition, the required video processors have decreased dramatically as well. Ten years ago a great video processor used to cost $10,000 to $20,000. Now you can get one for well under $5,000 and as little as $2,000, brand new. They also easily last 8,000 - 10,000 hours when properly set up.
If they are so fantastic, why doesn't everybody still use CRT projectors? Well, there are many detriments to a CRT projector as well. The best ones, with the 9" tubes, are simply huge. It's like hanging an upside down bathtub on your ceiling. If you want to put one under a coffee table, it'll be one large table. They are also very heavy, around 150 - 200lbs, so you need the proper structure to support them. CRT projectors also require precise placement. They must be perfectly square with the screen, at the correct elevation for good picture quality. In addition, while many digital projectors have zoom lenses, allowing the projector to be placed at a range of distance from the screen, CRT projectors must be at a very precise distance for a specific screen size. These factors severely limit placement options. While the larger CRT projectors put out more light than their smaller counterparts, they have pretty dim images compared to even the least expensive digital projectors. Finally, CRT projectors require specialized setup in order to get a watchable, much less an optimum image. Every 6 months to a year, they must be re-calibrated to ensure you are still getting optimum picture quality.
There are some very good reasons why most people are using digital projectors in their home theaters today. Many are small and light, require minimal setup and calibration (compared to a CRT), are quiet and have a bright, sharp image. But, there are many different digital projectors, ranging in price from around $700.00 to over $100,000.00. Which one is the best for your specific application? Thankfully, the situation is changing, but many of the digital projectors marketed for home theater use are really just re-badged presentation units. Presentation projectors sacrifice good video quality for brightness. Brightness is much more important when giving a Powerpoint presentation in a lit room than the correct color palate or the black level. The red on the pie chart looks great, no matter what, as long as you can see it from the back row.
You want to choose one of the newer units that has been truly designed for home theater applications. The actual technology used for the imaging chip is not all that important, there are great examples using all three of the digital technologies. Companies such as Sony, Runco, InFocus, Vidikron, Marantz, Benq, Panasonic, Sharp, Optima and Sanyo and some others all make great home theater projectors. The projector will have great black levels, to accurately reproduce detail in the darker areas of the picture and give great contrast. Absolute brightness is not extremely important, unless you have a multi-use room without complete light control or you have a lot of people over for sporting events. If you are entertaining many people for sports, it's nice to have some light on in the room, so a brighter projector is advantageous.
Projectors come in a number of different resolutions. The lower the resolution, the smaller the screen you can use before you can see pixel structure. Also, the lower resolutions will not support true HDTV. Most will display HD, but at a decreased resolution. The lowest end projectors typically have resolutions of 800 x 600. The Texas Instruments Matterhorn chip is popular on budget priced wide screen projectors, and has a resolution of 1024 x 576. Anything over a resolution of 720 will allow for true HDTV. The TI series of HD-2 DLP chips has a resolution of 1280 x 720. In April of 2005, TI announced new DLP chips with 1920 x 1080 was ready for production, allowing for true 1080p resolutions. Projectors with this chip will begin shipping in Q1 of 2006. Blu-Ray Disc has stated they will support 1080p, so by late 2006 there will be commercially available 1080p content besides Microsoft's WMHD discs.
Another very important aspect of home theater projectors is the internal video processing. This is one of the primary differences between good home theater projectors and presentation projectors. Digital projectors must display progressive scan images at the native resolution of the chip, so any interlaced signal, such as 1080i HDTV, must be de-interlaced and then scaled to the native chip resolution. Poor quality video processors, weather in the projector or external units, cause all sorts of video artifacts that can get in the way of a satisfying video presentation. This subject alone is too in depth for this article, as entire texts have been written on the subject. However, one common video artifact is "jaggies" where diagonal lines are jagged instead of straight. Another annoying artifact caused by poor video processing is moire'. This is a pattern seen as alternating light and dark lines that change position as the image moves.
You'll want to be sure your projector supports the HDMI or DVI with HDCP copy protection to allow you to connect a HD-DVD, scaling DVD player or Blu-Ray Disc player. These devices will only allow maximum resolution on a display that has a digital video input with HDCP copy protection. In the future, cable TV and satellite providers may restrict the maximum resolution to their digital outputs too.
When choosing your new home theater projector, make sure it has the video quality, brightness, size, auditory and budget characteristics that you need. Projectors are a large investment, choose carefully and you will be rewarded with years of thrilling video in your home theater.
About the Author
Steve has 15 yrs in electronics. He is a CEDIA certified designer with ISF and THX certificates. His experience includes: installer and programmer; system designer; business unit director for an a/v importer; sales rep for a CE distributor; and principal of a $1.5M+ CEDIA firm. He's now senior sales engineer for Digital Cinema Design in Redmond, WA. Go to: The Home Theater and Automation Guide#BREAK#
Thursday, February 12, 2009
Dump that Overhead Projector!
p>What is it about overhead projectors that causes us to become lousy communicators? Why do our speeches or presentations lose much of their steam when we use overheads?
Well, for starters, we often give more attention to the overheads than the audience. It can't be helped. After all, we have to pick up the right overhead, separate it from the next one, get it on the projector properly, check it out on the screen, and so on.
While doing those things, we're taking our eyes off the audience. At the same time, the audience spends a lot of time looking at the screen, rather than at us. And, nothing detracts from good communication like loss of eye contact with the audience.
We're also taking our mind off the audience. Instead, we're focusing our thoughts on the technical issues involved in showing the overhead, including our explanations of the visuals.
Then there's the amount of material. Almost every time I see a speech with overheads, I see way too much content. One of the best lessons I've learned in several years at Toastmasters is that less is more. Don't try to explain everything to your audience, just pick one small sliver of an issue and explain it well - a speech is not a book or a written article!
And, then there's the simple fact that the projector gets between you and the audience. There's noise and the size of the projector, which mean a projector can be a more powerful presence at the front of the room than you.
Perhaps there should be a 12-step program for getting over overhead projectors. While they're unlikely be an addiction, they can be a crutch, one that allows us to make presentations without adequate thought or preparation.
Personally, I like the idea of giving up overheads and projectors altogether. A colleague recently asked if we should use overheads when we do some upcoming presentations together. I expressed my opinion firmly. Need I say what that was?
If you're not ready to give them up, use your overheads in a supporting role. Don't ask them to carry a substantial part of the message; you should deliver the message, and the overheads should reinforce what you say.
For example, if your presentation involves numerical information, a simple bar or line graph might help the audience get the point. Or, if you're talking about a sequence of events and their order is critical, a numbered list might help.
But the best bet may be to go without. Before the presentation, think hard about the message or messages you want to convey. Boil them down into no more than three points, and then look for stories, analogies, metaphors, and anything else that will illustrate and reinforce each point. Try to create mental images with words, like good radio ads.
In summary, overhead projectors put serious communication barriers between speakers and audiences. Get rid of them. You'll be glad you did - and your audience will, too.
Robert F. Abbott writes and publishes Abbott's Communication Letter. Learn how you can use communication to help achieve your goals, by reading articles or subscribing to this ad-supported newsletter. An excellent resource for leaders and managers, at:
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Tuesday, February 3, 2009
Comparing Projector Prices Before Purchasing
Comparing Projector Prices Before Purchasing
Buying a projector is an investment that you want to be sure you make wisely. So taking the time to do some comparison shopping when it comes to prices is simply a smart thing to do and something you certainly won?t regret.
There are several ways you can go about comparing prices on projectors. The first is to visit electronics stores and office supply stores that sell projectors and check out their prices in the stores. This is an especially good method during sales. It?s also a great way to get a good deal locally because many stores will offer to beat their competitors? best price by a certain percentage, which can save you even more money.
You can also research and compare prices on projectors online. Doing your projector price comparison shopping online makes it possible for you to check out a much larger number of prices on projectors than you can do by going from store to store. This will also make it possible for you to check out the prices on a wider number of brand name projectors and even look into the prices of used projectors. Online auction sites such as eBay are great places to compare prices on used projectors.
Consumer report magazines are also a good resource for comparing prices on various projectors. These reports have the advantage of also rating the projectors, so you can compare quality as well as prices on projectors.
This is an important part of comparing prices on anything, whether it?s projectors or cars. You want to get the most value for your money, and that means that many times a medium priced item is actually a better value than a higher priced one because it has more features than a stripped down top brand name one has.
Also, even before you start comparing prices on projectors, it?s a good idea to have a budget in mind for what you?re willing to spend for your projector. This will help you focus your price comparison, although you don?t want to rule out looking into projectors that may cost more than you?ve budgeted for because you may run into an unexpected bargain as you do your research.
And if the thought of doing all the research needed to compare prices on projectors sounds like work to you, remember that at least half the fun of making any purchase is in the search! Make a game of it and see just how great a projector you can find for the least amount of money, thanks to your savvy comparison shopping. Then take those savings and splurge on something just for you!
About the Author: Jim Gelder is a contributing writer for http://www.projectorian.com ? a website dedicated to offering information about projectors and projector rentals and also features a listing of local companies that offer LCD projector rentals and more.
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Video Projectors - Advice On Choosing The Right Model For Home Or Business
As video projectors become more affordable then more people are using them both at work and at home. You might be thinking that projectors are all alike and the more you spend the better it will be. Well this is not strictly true. The more expensive projectors will be of a higher standard, but you might not experience any benefit if you do not choose the correct model. This is why we have written this article to try and guide you and help you choose the model most suited to you.
Before any purchase it is important to have a think about what you will be using it for and in what kind of environment. The business user will have very different requirements to someone wanting to set up a home cinema. Companies are now marketing hybrid projectors that claim to be able to be used for both home cinema and business. These two environments are very different though and will need projectors designed specifically to be able to handle these two very different uses. As you read the rest of the article you will begin to understand what you need to look out for when purchasing your video projector.
LCD or DLP
Both are excellent formats and which you choose will depend on your use. The business user will be more suited to an LCD projector due to the increased brightness. The home user on the other hand would be better to opt for a DLP projector as these will give a more cinematic experience.
Brightness
Think about the level of ambient light in the room where you will be using your projector. In the home cinema you will hopefully have control of the level of light so this will not be an issue. If you are using a room at home that has ambient light then you will need to opt for a brighter projector. In the business arena you are likely to be presenting in very bright rooms with standard office lighting and windows. A good projector for business use will need to have a high brightness level.
Brightness is measured in ANSI lumens. For home cinema you should be looking at projectors that have around 700 ANSI lumens brightness and for business projectors you will need between 1000 and 1500.
Color
The color, gray-scale performance, and video playback, are only really important to the home user as they will give more natural and detailed videos.
Contrast
There is no point spending money on a high contrast video projector for business use or use in a room at home that has significant ambient light as your eyes will not notice the benefit. If you have a dedicated cinema room at home then it will be worth looking at projectors with contrast ratios of 400:1 or higher. If you are looking for a projector for business use then there is no point by one with a ratio of higher than 400:1
Portability
This will probably only be an issue for a business user. If you travel around a lot and take your projector with you then the more compact and light the better. It is possible to buy extremely light projectors.
The home user may not be concerned too much with size and weight, but it is worth considering how you will set your projector up at home. Will it be fixed to the ceiling or on a stand? If you have it on the ceiling you should look for a projector which comes with a remote control as this will make adjusting settings a lot easier.
We hope that this look at the differences with video projectors will help you make your decision.
About the Author
Find more articles by Steve Jones at http://www.a1-lcdprojector.com
Monday, February 2, 2009
The Advantages of Renting an LCD Projector
When you use an LCD projector rental, you're able to pay more attention to preparing your presentations. This is because all of the details of your presentation equipment have been taken care of. Isn't this convenience at its best?
There are other excellent reasons why you should you contract to do an LCD Projector rental. But first, for those that don't know, a quick explanation of what an LCD Projector is. An LCD (liquid crystal display) projector is a gadget that projects a large image onto a screen or wall. The latest projectors can connect to your laptop, video or DVD player, in fact just about any video source. So an LCD projector is a versatile tool for any type of presentation.
Now you know what an LCD projector is, why should you rent an LCD projector? There is an obvious financial benefit if your presentations are few and far between. But isn't it better to buy one, particularly if you are doing frequent office presentations?
Well, when you commit to any length LCD projector rental plan you get all the benefits of ownership without the capital outlay. The major long term saving comes from not having to worry about maintenance and repairs. LCD projectors are machines that can break down and the bulbs, which have a relatively short life compared to the projector, are expensive
Another major benefit of renting an LCD projector
You don't have to worry about planned obsolescence. As you know, this is built into all technological gadgets. Every few months there are new releases of digital cameras, laptop computers and LCD projectors. But don't worry, your LCD projector rental will always be the latest' model on the market! No matter how dizzying the array of more sophisticated models, your LCD Projector rental will always be amongst the newest.
When you contract for an LCD Projector rental, you have access to newer models
Each time there's a newer model on the market, just ask for it. When you don't own the projector, there's no problem wondering what you should do with the old model. Just hand it back! Ensuring you always have the latest LCD projector will mean you won't run into incompatibility issues between computer and projector.
So follow this tip, where renting LCD projectors is concerned. Don't rent the older LCD projector you may be used to. Even if you have to spend a little time learning how your newly rented LCD projector works, do it. Or you'll have a disaster, especially if your rental LCD projector is not the newest model in the block!
No need to lug your LCD projector around with you
Especially here in continental USA, and most European cities, you can easily rent an LCD projector locally. So you won't have to worry about carrying it around or keeping close tabs on it. You can arrive at your destination, pick up your LCD projector and go to the presentation venue without hassle.
Make sure you pick a LCD projector rental company with the capacity to ship the LCD projector you require. So you get the model you want, where and when you need it. Renting like this means your projector will always be in tiptop condition. No bulb that needs replacing. Because they need your business, LCD projector rental companies will make sure your LCD projector rental is always in excellent condition.
About the Author
For information about the latest LCD Projectors,
including news and product reviews, visit
http://www.lcdprojectorcenter.com
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Digital Projector Guide- Some tips for Digital Projectors
Digital projectors are equipments of modern technology. These are used to convert image data directly from the computer onto a screen via lens system. Digital projectors provide visualization of data that is actually stored in a computer for presentation. These projectors enable the viewers to watch moving images from a DVD, digital versatile disc player. Advertisers or sellers also use these projectors to give demonstration of products to a large number of customers. It can easily convert written documents onto an interactive whiteboard.
Digital projectors play an important role in the formation of home theater systems. These projectors use resolution of SVGA standard i.e. 800?600 pixels in expensive devices. Cost of digital projector is determined by its resolution as well as its brightness. If you're going to use it in large rooms or big conference halls its brightness should be from 1,000 to 4,000 ANSI lumens.
First digital projectors, Eidophor projectors were introduced in 1950. Eidopher projectors used an oily surface in a rotating disk with light shining through it and employed an electron beam to disrupt oil in a specific manner. Eidophor projectors were not able to produce colors. Nowadays there are several high quality models of digital projectors are available in market so Eidopher projectors are less common.
Following four technologies are used in digital projectors:
High intensity CRT
LCD projectors using LCD light gates
Texas Instruments' DLP technology
Eidophor oil-film projectors (obsolete)
At present LCD projectors use Texas Instruments' DLP technology whereas the high intensity CRT devices are suitable for enduring installations. Entire working of cathode ray tube digital projectors is like CRT television set. These projectors may be configured with one RGB color tube that has three colors red, green and blue with a single lens, one black & white tube with a rotating color wheel or three RGB color tubes with three lenses. Projectors having cathode ray tubes are usually bulky thats why these are the best projectors for fixed installations.
LCD digital projectors are portable and lighter enough in comparison to CRT and can be easily shifted from one place to another. These are very much popular and available in various shapes and sizes. CRT and LCD digital projectors come under the category of transitive projectors.
Reflective projectors are the superior digital projectors that provide high quality images. These are affordable and offer next level of entertainment. Everyone can enjoy home theater applications with the help of digital projectors.
About the Author
About Author: The Author owns a website on Digital Projectors. The website offers advice on how to buy cheap digital projectors. It is the best source to get latest information about digital projectors. You can visit his site
http://www.gmdigitalprojectors.com/#BREAK#
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Sunday, February 1, 2009
How DLP Projectors Work?
DLP (Digital Light Processing) projectors can be attached with computers, DVD players, VCR players, HDTV's and video games. It comes in various models and with enhanced features. DLP Projectors are also called as Multimedia projectors.In mid 1990's Texas Instruments developed Digital Light Processing. DLP technology is based on DMD or Digital Micromirror Device. It is a switch, which controls the intensity, and placement of projected light via 4,80,000 mirrors. In a DLP-based display there are unlimited colors. You can control the saturation and clarity to make bright video as clear as you want. The DMD is coordinated with a graphic signal, a light source and a projection lens.The micromirrors of DLP are fixed on a panel of small pivots, which enable them to slant either way. If it slants towards (on) light source it creates bright pixels on the screen and when it slants the other way (off) it creates darker pixels. When the bit-stream image code enters the semiconductor, the semi conductor directs the switch to on or off. If the switch remains on more times than off, it reflects a light gray pixel. Otherwise it reflects darker gray pixel. In DLP systems white light is passed through a color wheel and it runs to the surface of the DMD panel. The color wheel converts the white light into red, green and blue. From these three colors a DMD chip can create 16.7 million colors. So a 3-DMD chip DLP system can create a mammoth 35 trillion colors. Then our eyes understand these colors and see an image.
About the Author
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DLP vs LCD projectors
If youve been thinking about buying a home theater projector and read reviews or done a little bit of research, youll be aware that there are two technologies competing for the contents of your wallet.
Both LCD and DLP are used in projectors suitable for home theaters, but they work in quite different ways and produce slightly different results. If you ask around particularly in electronics stores, youre likely to be provided with a mass of information thats confusing and often just plain wrong. So here, in an effort to clear the fog surrounding projectors, is our guide to LCD v DLP.
LCD
LCD projectors have three separate LCD panels, one for red, one for green, and one for blue components of the image being processed by the projector. As light passess through the LCD panels, individual pixels (or picture elements) can be either opened or closed to either allow light to pass through or be filtered out. In this way the light is modulated and an image projected on to the screen.
LCD projectors have historically had three main advantages over DLP. They produce more accurate colors (due to the three separate LCD panels), they produce a slightly sharper image (although this is as good as undetectable when watching movies) and they are more light-efficient, which means they produce brighter images using less power.
However, LCD projectors also have some disadvantages, although as the technology improves these are becoming less and less relevant. The first of these is pixelation, or whats known as the screen door effect. This means that sometimes you can see the individual pixels and it looks as though you are viewing the image through a screendoor. The second historic disadvantage of LCD v DLP is that LCD doesnt produce absolute black, which means that contrast is less than you would get with DLP.
However, the advent of higher resoltion LCD projectors (particularly HD-ready projectors which have a horizontal resolution of 768 pixels or greater) means that pixelation is less of a problem than it used to be. And the improved ability of LCDs to produce high-contrast images is also allowing them to be taken more seriously by home theater enthusiasts.
DLP
Digital Light Processing (DLP) is a technology developed by Texas Instruments and it works by projecting light from the projectors lamp onto a DLP chip, made up of thousands of tiny mirrors. Each mirror represents a single pixel and directs the light projected onto it either into the lens path to turn the pixel on or away from it to turn it off. Most DLP projectors have only one chip, so in order to reproduce color, a color wheel consisting of red, green, blue and sometimes, white filters is used. The wheel spins between the lamp and the chip and changes the color of the light hitting the chip from red, to green, blue. Each mirror on the DLP chip tilts towards or away from the lens path depending on how much of a particular colour light is required for that pixel at any given instant.
The key advantages DLP has in the LCD v DLP debate is that DLP projectors tend to be smaller and lighter, have better contrast, and dont suffer the same pixelation problems as LCD projectors. There is one problem that some users report with DLP projectors, although it appears to only affect a very small number of people. Because of the way DLP works, at any given instant, the image on screen is either red, green, or blue. However, the images change so quickly, that the human eye doesnt detect this and your brain puts the red, green and blue images together to make a complete frame of video. Unfortunately, some people can see the individual colours, and others can detect them enough to cause eye-strain and headaches. However, technology has improved significantly with the introduction of six-color wheels and faster rotation speeds. The rainbow effect should be a problem for even fewer people. The best way to find out if youre affected is to try out a DLP projector, perhaps by hiring one, before you buy.
Technology in both LCD and DLP projectors is improving all the time. However, at the time of writing DLP still has a slight edge in the home theater market.
About the author:
Kenny Hemphill is the editor and publisher of Master Home Theater Design (http://www.master-home-theater-design.com), a website which provides information, articles, and tutorials on issues and products related to getting started with Home Theater.
Both LCD and DLP are used in projectors suitable for home theaters, but they work in quite different ways and produce slightly different results. If you ask around particularly in electronics stores, youre likely to be provided with a mass of information thats confusing and often just plain wrong. So here, in an effort to clear the fog surrounding projectors, is our guide to LCD v DLP.
LCD
LCD projectors have three separate LCD panels, one for red, one for green, and one for blue components of the image being processed by the projector. As light passess through the LCD panels, individual pixels (or picture elements) can be either opened or closed to either allow light to pass through or be filtered out. In this way the light is modulated and an image projected on to the screen.
LCD projectors have historically had three main advantages over DLP. They produce more accurate colors (due to the three separate LCD panels), they produce a slightly sharper image (although this is as good as undetectable when watching movies) and they are more light-efficient, which means they produce brighter images using less power.
However, LCD projectors also have some disadvantages, although as the technology improves these are becoming less and less relevant. The first of these is pixelation, or whats known as the screen door effect. This means that sometimes you can see the individual pixels and it looks as though you are viewing the image through a screendoor. The second historic disadvantage of LCD v DLP is that LCD doesnt produce absolute black, which means that contrast is less than you would get with DLP.
However, the advent of higher resoltion LCD projectors (particularly HD-ready projectors which have a horizontal resolution of 768 pixels or greater) means that pixelation is less of a problem than it used to be. And the improved ability of LCDs to produce high-contrast images is also allowing them to be taken more seriously by home theater enthusiasts.
DLP
Digital Light Processing (DLP) is a technology developed by Texas Instruments and it works by projecting light from the projectors lamp onto a DLP chip, made up of thousands of tiny mirrors. Each mirror represents a single pixel and directs the light projected onto it either into the lens path to turn the pixel on or away from it to turn it off. Most DLP projectors have only one chip, so in order to reproduce color, a color wheel consisting of red, green, blue and sometimes, white filters is used. The wheel spins between the lamp and the chip and changes the color of the light hitting the chip from red, to green, blue. Each mirror on the DLP chip tilts towards or away from the lens path depending on how much of a particular colour light is required for that pixel at any given instant.
The key advantages DLP has in the LCD v DLP debate is that DLP projectors tend to be smaller and lighter, have better contrast, and dont suffer the same pixelation problems as LCD projectors. There is one problem that some users report with DLP projectors, although it appears to only affect a very small number of people. Because of the way DLP works, at any given instant, the image on screen is either red, green, or blue. However, the images change so quickly, that the human eye doesnt detect this and your brain puts the red, green and blue images together to make a complete frame of video. Unfortunately, some people can see the individual colours, and others can detect them enough to cause eye-strain and headaches. However, technology has improved significantly with the introduction of six-color wheels and faster rotation speeds. The rainbow effect should be a problem for even fewer people. The best way to find out if youre affected is to try out a DLP projector, perhaps by hiring one, before you buy.
Technology in both LCD and DLP projectors is improving all the time. However, at the time of writing DLP still has a slight edge in the home theater market.
About the author:
Kenny Hemphill is the editor and publisher of Master Home Theater Design (http://www.master-home-theater-design.com), a website which provides information, articles, and tutorials on issues and products related to getting started with Home Theater.
Monday, January 26, 2009
Video Projector Rentals
By Marcus Peterson
A video projector is a device that projects a video or computer image onto a screen. The commonly used inputs are video cassette players, CD and DVD players and PowerPoint presentations from computers. Some computers have CD as well as DVD drives which support these discs. Some projectors don’t have VGA connectors, which take inputs from a computer.
A video projector employs one of three technologies: CRT, LCD and DLP. CRT projectors are just like television, i.e. they employ cathode ray tubes. The limitations of CRT video projectors are the heavy size and the requirement of absolute darkness for clarity of the picture. LCD projectors employ a special chip so that the advantage is that the projector is very compact. Besides, it has excellent contrast and brightness. The LCD projector employs individual pixels, which produces high resolution. The limitation of a LCD is it produces a screen door effect. Also the repair of one would result in a dark spot on the screen.
DLP technology employs a Digital Micromirror Device, instead of a chip. DLP projectors are highly suitable for viewing movies and also other multimedia presentations. The advantages of DLP projector include color accuracy and no screen door effect.
LCD and DLP video projectors are the favorites and therefore most of the inventory of the rental companies are the above mentioned ones. The rates of these projectors start at $100 and are dependent upon factors such as the resolution and weight. The rental companies provide support throughout the whole day and night. This includes online or phone booking, shipment, installation, and operation support.
Hotels, resorts, convention centers and conference halls enter into contract with rental companies to provide these services. The rental companies have chains of shops across a particular region or nationwide networks. The directories of these service providers can be obtained online, which directs them to the individual websites.
A video projector employs one of three technologies: CRT, LCD and DLP. CRT projectors are just like television, i.e. they employ cathode ray tubes. The limitations of CRT video projectors are the heavy size and the requirement of absolute darkness for clarity of the picture. LCD projectors employ a special chip so that the advantage is that the projector is very compact. Besides, it has excellent contrast and brightness. The LCD projector employs individual pixels, which produces high resolution. The limitation of a LCD is it produces a screen door effect. Also the repair of one would result in a dark spot on the screen.
DLP technology employs a Digital Micromirror Device, instead of a chip. DLP projectors are highly suitable for viewing movies and also other multimedia presentations. The advantages of DLP projector include color accuracy and no screen door effect.
LCD and DLP video projectors are the favorites and therefore most of the inventory of the rental companies are the above mentioned ones. The rates of these projectors start at $100 and are dependent upon factors such as the resolution and weight. The rental companies provide support throughout the whole day and night. This includes online or phone booking, shipment, installation, and operation support.
Hotels, resorts, convention centers and conference halls enter into contract with rental companies to provide these services. The rental companies have chains of shops across a particular region or nationwide networks. The directories of these service providers can be obtained online, which directs them to the individual websites.
Projector Rentals provides detailed information on Computer Projector Rentals: A Guide, DVD Projector Rentals, Film Projector Rentals, LCD Projector Rentals and more. Projector Rentals is affiliated with DLP Projectors.
Article Source: http://EzineArticles.com/?expert=Marcus_Peterson
LCD Projector Rentals
By Ken Marlborough
There are a few basic rules you need to follow when renting an LCD Projector.
Plan ahead, at least one to two weeks in advance, to make sure the right type of projector is available for rent. The type and power of the LCD Projector should depend on the type of presentation, the size of the audience, viewing angle, viewing distance, room brightness, and location. And remember that more powerful projectors are often larger and heavier so they are not very ideal for mobility.
Double-check to make sure that the projector is fully functional and all the connections such as power supply cord, the VGA cable (if connecting to a standard PC or laptop), or S-video (if connecting to standard video sources like VCRs) are in proper order when renting a LCD Projector.
When dealing with the rental company, inquire if they will be able to deliver the equipment and if they are going to pick it up after use. Make sure they will - in order to avoid accidental damage to the LCD projector (and accessories) when it’s being carried around.
Scheduling multiple presentations in a specific area together can be useful because many rental services feature reduced rates for rentals with longer durations. For example, instead of renting an LCD projector for just two days at the beginning and end of the week, you may save a lot more money by renting it for a for a business week.
LCD projectors are typically more expensive than conventional ones. So, most rental services will allow you to purchase insurance for a small fee, which can be much cheaper than repairing or replacing the projector in case of damage.
Plan ahead, at least one to two weeks in advance, to make sure the right type of projector is available for rent. The type and power of the LCD Projector should depend on the type of presentation, the size of the audience, viewing angle, viewing distance, room brightness, and location. And remember that more powerful projectors are often larger and heavier so they are not very ideal for mobility.
Double-check to make sure that the projector is fully functional and all the connections such as power supply cord, the VGA cable (if connecting to a standard PC or laptop), or S-video (if connecting to standard video sources like VCRs) are in proper order when renting a LCD Projector.
When dealing with the rental company, inquire if they will be able to deliver the equipment and if they are going to pick it up after use. Make sure they will - in order to avoid accidental damage to the LCD projector (and accessories) when it’s being carried around.
Scheduling multiple presentations in a specific area together can be useful because many rental services feature reduced rates for rentals with longer durations. For example, instead of renting an LCD projector for just two days at the beginning and end of the week, you may save a lot more money by renting it for a for a business week.
LCD projectors are typically more expensive than conventional ones. So, most rental services will allow you to purchase insurance for a small fee, which can be much cheaper than repairing or replacing the projector in case of damage.
LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.
Article Source: http://EzineArticles.com/?expert=Ken_Marlborough
Sunday, January 25, 2009
Projector Rentals
By Marcus Peterson
The rentals industry is huge. It was worth $4 billion in 2002 in the US. This industry is comprised of rental of automotive such as passenger cars; commercial and industrial equipment for industries such as mining and construction; and consumer electronic goods such as video tapes. There were approximately 7000 firms with a revenue growth of 20 percent in the period 1997-2002.
The audio visual rental industry comes under the General Rental Centers classification of the US Economic Bureau. Industrial figures show that there are 144 firms with total revenue of $76 million. The industry is characterized by uptown facilities locations and a vast inventory of audio visual equipment.
Audio visual equipment consists of products that are used to transmit data, presentations and video. Projectors are one of the products in the portfolio of audio visual equipment.
The earliest projectors were film based. Later came projectors to transmit data in the form of transparencies. With the advent of technologies like DLP, electronic projections have become the order of the day.
Projectors are used to project to data through slides, images through DVD, computers. They can be mounted on tabletop and from ceiling for good resolution. The accessories that come with projectors are power cables, tripods, screens, carts and stands and monitors. The type of projectors needed for the occasion depend upon the number of audience, hall size, resolution.
Audio visual rental companies provide services such as renting out, delivery to the required place and total solutions such as managing sound and video. They manage staging and event operations in big events such as trade fairs, exhibitions, conferences and meetings for corporations, small and medium businesses in hotels, and other locations. The rental rates depend upon the equipment and the number of days. They are rented out daily, weekly and on a lease basis.
Projector Rentals provides detailed information on Computer Projector Rentals: A Guide, DVD Projector Rentals, Film Projector Rentals, LCD Projector Rentals and more. Projector Rentals is affiliated with DLP Projectors.
Article Source: http://EzineArticles.com/?expert=Marcus_Peterson
The rentals industry is huge. It was worth $4 billion in 2002 in the US. This industry is comprised of rental of automotive such as passenger cars; commercial and industrial equipment for industries such as mining and construction; and consumer electronic goods such as video tapes. There were approximately 7000 firms with a revenue growth of 20 percent in the period 1997-2002.
The audio visual rental industry comes under the General Rental Centers classification of the US Economic Bureau. Industrial figures show that there are 144 firms with total revenue of $76 million. The industry is characterized by uptown facilities locations and a vast inventory of audio visual equipment.
Audio visual equipment consists of products that are used to transmit data, presentations and video. Projectors are one of the products in the portfolio of audio visual equipment.
The earliest projectors were film based. Later came projectors to transmit data in the form of transparencies. With the advent of technologies like DLP, electronic projections have become the order of the day.
Projectors are used to project to data through slides, images through DVD, computers. They can be mounted on tabletop and from ceiling for good resolution. The accessories that come with projectors are power cables, tripods, screens, carts and stands and monitors. The type of projectors needed for the occasion depend upon the number of audience, hall size, resolution.
Audio visual rental companies provide services such as renting out, delivery to the required place and total solutions such as managing sound and video. They manage staging and event operations in big events such as trade fairs, exhibitions, conferences and meetings for corporations, small and medium businesses in hotels, and other locations. The rental rates depend upon the equipment and the number of days. They are rented out daily, weekly and on a lease basis.
Projector Rentals provides detailed information on Computer Projector Rentals: A Guide, DVD Projector Rentals, Film Projector Rentals, LCD Projector Rentals and more. Projector Rentals is affiliated with DLP Projectors.
Article Source: http://EzineArticles.com/?expert=Marcus_Peterson
HD Projection Screens - A Home Theater Fantasy?
By Otto Tromm
High Definition projection is a definite step forward when you want to have a home theatre that rivals the best commercial theatres.
The specifications for an HD projector are well defined, so you know exactly which projector is a full HD projector and which one isn't. Just by looking at the specifications.
Projection screens are a different story all together. There are no real specifications to begin with. Sure, you have gain and viewing angles, but since a projection screen can only reflect what the projector puts out, it's hard to compare. Especially when you add the impact of ambient light to the equation. (ambient light is all light that is not coming from the projector).
So how can you get the right projection screen for your HD projector?
First of all, you have to realize that there are no HD projection screens. There is no industry standard that determines which projection screen would or would not be high definition. Nor is that possible, because with an HD projector a projection screen would then be HD, but with a standard projector it would not be.
So now that we have determined that an HD projection screen does not exist, what do you look for when you want to have the most from your HD projector?
1. A wrinkle-free fabric. V-shapes and horizontal lines are common with some projection screens. But, this is a no-go for an HD set-up, since any distortion in a razor sharp image can be seen immediately. The best screen types are fixed frame screens and electric or tensioned electric projection screens. Manual screens are cheap, but rarely offer a level of planarity that results in a distortion-free projection.
2. A smooth fabric. Some fabrics are coarse in the sense that the projection layer sprayed onto the carrier material has a clear structure. This interferes with the projection, since with an HD projection, the structure will be visible. This is not only annoying, but takes the realism out of the movies you project.
If you look at these two factors, you are guaranteed to have a perfect projection screen. Don't believe HD or HD ready labels stuck onto a projection screen or displayed on a site.
And, if possible, visit a showroom where you can see the differences between fabrics and see how they perform. If that's no option, ask for fabric samples, as many manufacturers make these available, free of charge, so you can see what the material is like, without ever leaving your home.
So an HD projection screen is a fantasy, but you can get a screen that will make the most of your projector.
As an award winning projection screen designer and founder of Beamax projection screens, Otto Tromm knows what matters when you want to get the most from your projection screen.
More importantly, he recognises the value of industrial design, so that you can have a projection screen in your own home, without it dominating the room.
To find a projector screen that matches your room, budget and projector, go to http://www.beamax.com
Article Source: http://EzineArticles.com/?expert=Otto_Tromm
High Definition projection is a definite step forward when you want to have a home theatre that rivals the best commercial theatres.
The specifications for an HD projector are well defined, so you know exactly which projector is a full HD projector and which one isn't. Just by looking at the specifications.
Projection screens are a different story all together. There are no real specifications to begin with. Sure, you have gain and viewing angles, but since a projection screen can only reflect what the projector puts out, it's hard to compare. Especially when you add the impact of ambient light to the equation. (ambient light is all light that is not coming from the projector).
So how can you get the right projection screen for your HD projector?
First of all, you have to realize that there are no HD projection screens. There is no industry standard that determines which projection screen would or would not be high definition. Nor is that possible, because with an HD projector a projection screen would then be HD, but with a standard projector it would not be.
So now that we have determined that an HD projection screen does not exist, what do you look for when you want to have the most from your HD projector?
1. A wrinkle-free fabric. V-shapes and horizontal lines are common with some projection screens. But, this is a no-go for an HD set-up, since any distortion in a razor sharp image can be seen immediately. The best screen types are fixed frame screens and electric or tensioned electric projection screens. Manual screens are cheap, but rarely offer a level of planarity that results in a distortion-free projection.
2. A smooth fabric. Some fabrics are coarse in the sense that the projection layer sprayed onto the carrier material has a clear structure. This interferes with the projection, since with an HD projection, the structure will be visible. This is not only annoying, but takes the realism out of the movies you project.
If you look at these two factors, you are guaranteed to have a perfect projection screen. Don't believe HD or HD ready labels stuck onto a projection screen or displayed on a site.
And, if possible, visit a showroom where you can see the differences between fabrics and see how they perform. If that's no option, ask for fabric samples, as many manufacturers make these available, free of charge, so you can see what the material is like, without ever leaving your home.
So an HD projection screen is a fantasy, but you can get a screen that will make the most of your projector.
As an award winning projection screen designer and founder of Beamax projection screens, Otto Tromm knows what matters when you want to get the most from your projection screen.
More importantly, he recognises the value of industrial design, so that you can have a projection screen in your own home, without it dominating the room.
To find a projector screen that matches your room, budget and projector, go to http://www.beamax.com
Article Source: http://EzineArticles.com/?expert=Otto_Tromm
Saturday, January 24, 2009
Projector Lamp Advice
By S Oneill
Projector lamps
New projectors are supplied with a new lamp fitted, which for the average projector lasts around 2,000 hours. For business use, using a projector 7 hours a day, 5 days a week, the lamp should last over a year.
Replacement lamps or lamp modules
Majority of projector lamp manufacturers give a 3 months RTB warranty on new lamps. This warranty commences from date of purchase/invoice.
Lamps or lamp modules
Manufacturers lamps vary, but can be sold as "lamp only" or as a lamp module, as shown above.
When replacing a new lamp into the existing lamp module housing, a suitably qualified electrician or on-site professional should only undertake it. It is important to ensure the terminals are not over tightened as the ceramic can be cracked and reduce the electronic insulation of the bulb. Similarly, if the bulb is under tightened, it can cause arcing on the terminal, which puts undue load on the ballast that can lead to failure.
Lamp modules are more commonplace and can be likened to car headlights, where you buy the "unit" which just slots in. To replace a lamp module, you simply undue the necessary screws on your projector, lift out the old lamp module, insert the new lamp module and tighten the screws. Obviously, specific instructions on how to replace bulb modules will vary slightly from projector to projector, so the instruction manual should be consulted and the replacement undertaken by a suitably qualified person.
Useful tips on prolonging lamp life
Never touch the lamp with your fingers, always use a cloth for handling. Deposits from fingerprints cause temperature "hot spots" and temperature gradient stresses the glass often resulting in earlier lamp failure.
Keep the air filters of your projector clean as block filters make the lamp overheat, possibly causing earlier lamp failure. There should always be good airflow around the projector.
Always switch off the projector using the remote control and not by disconnecting the power. The projector will invariably go into a cool down mode where the image is turned off and the fan accelerates to cool the lamp in a controlled manner. The temperature of an operating lamp is many 1,000's of degrees, so if you disconnect the power to the projector, prior to the above process, the glass in the lamp will cool unevenly and will result in stress fracture, causing early lamp failure. We are led to believe that you can shorten your projector lamp life by up to 50% simply by disconnecting the power instead of switching off the projector by remote control and allowing the natural cooling process to take place.
Lamp failure can also be due to mechanical shock and vibration. A hot lamp filament is fragile and you should always ensure the unit is turned off and the lamp is cool before moving the projector.
If your projector has a high/low lamp/lamp switch, you can extend your average lamp life by using the "low lamp/lamp" position whenever possible.
Article Source: http://EzineArticles.com/?expert=S_Oneill
Projector lamps
New projectors are supplied with a new lamp fitted, which for the average projector lasts around 2,000 hours. For business use, using a projector 7 hours a day, 5 days a week, the lamp should last over a year.
Replacement lamps or lamp modules
Majority of projector lamp manufacturers give a 3 months RTB warranty on new lamps. This warranty commences from date of purchase/invoice.
Lamps or lamp modules
Manufacturers lamps vary, but can be sold as "lamp only" or as a lamp module, as shown above.
When replacing a new lamp into the existing lamp module housing, a suitably qualified electrician or on-site professional should only undertake it. It is important to ensure the terminals are not over tightened as the ceramic can be cracked and reduce the electronic insulation of the bulb. Similarly, if the bulb is under tightened, it can cause arcing on the terminal, which puts undue load on the ballast that can lead to failure.
Lamp modules are more commonplace and can be likened to car headlights, where you buy the "unit" which just slots in. To replace a lamp module, you simply undue the necessary screws on your projector, lift out the old lamp module, insert the new lamp module and tighten the screws. Obviously, specific instructions on how to replace bulb modules will vary slightly from projector to projector, so the instruction manual should be consulted and the replacement undertaken by a suitably qualified person.
Useful tips on prolonging lamp life
Never touch the lamp with your fingers, always use a cloth for handling. Deposits from fingerprints cause temperature "hot spots" and temperature gradient stresses the glass often resulting in earlier lamp failure.
Keep the air filters of your projector clean as block filters make the lamp overheat, possibly causing earlier lamp failure. There should always be good airflow around the projector.
Always switch off the projector using the remote control and not by disconnecting the power. The projector will invariably go into a cool down mode where the image is turned off and the fan accelerates to cool the lamp in a controlled manner. The temperature of an operating lamp is many 1,000's of degrees, so if you disconnect the power to the projector, prior to the above process, the glass in the lamp will cool unevenly and will result in stress fracture, causing early lamp failure. We are led to believe that you can shorten your projector lamp life by up to 50% simply by disconnecting the power instead of switching off the projector by remote control and allowing the natural cooling process to take place.
Lamp failure can also be due to mechanical shock and vibration. A hot lamp filament is fragile and you should always ensure the unit is turned off and the lamp is cool before moving the projector.
If your projector has a high/low lamp/lamp switch, you can extend your average lamp life by using the "low lamp/lamp" position whenever possible.
Article Source: http://EzineArticles.com/?expert=S_Oneill
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