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There are two types of projectors: The two types of projectors are LCD and DLP.
LCD:
LCD stands for Liquid Crystal Display. The way this places an image on a screen is fascinating and not nearly as complex as you might imagine. A bulb is set up to shine a fairly powerful light through a prism. The prism splits the light into its component colors and these are sent through small LCD screens. The screens themselves are sent signals to allow just so much of the light through at specific pixel locations. The light is then beamed through a lens onto a screen where the images can be seen by the human eye.
DLP:
DLP, or Digital Light Processing is a bit more complex. This time the light is shined through a spinning color wheel onto a chip that is mounted with hundreds of thousands of tiny mirrors. The mirrors are turned off or on by electronic impulses according to the need for the color at that moment. Even though only one color is shown at a time, one color follows another so quickly that the primary colors seem to blend into the appropriate color. The image appears to be constantly lit, when in fact small parts of it are constantly flickering. This technology was developed by Texas Instruments and is based on an older technology that was used for color television in the 1950s.
More info go to http://projectors.indepthinfo.com/how-projectors-work.shtml
Related Questions
I have one of those spy remotes and sad to say it did not work on the projectors that I tried them on. I have a lot of those small remotes and none of mine worked on any projectors.
Yes, the new ones such as samsung galaxy note or s3 with adapter will work with HD TV and also projectors with hdmi in.
super8 works on super8 and 8mm on 8mm projectors, some projectors do have a switch to go from one to another
LCD projectors are by far the best
The Epson PowerLite projectors work great with DVDs, especially at 720p.
Yes, make sure you get one with a high brightness rating, but most new projectors made for businesses work great in full light rooms.
I haven't seen a retro school projectors on the market today but, If you really like the old school projectors you can get some restored projectors for a good price. anonymous@oola.com
There are no projectors that can connect to a computer wirelessly as there is currently no wireless video specification.
Staples offers several styles and brands of LCD projectors online. They also carry DLP projectors which is a newer technology.
Gulliver thinks the political projectors are boring and out of their minds.
A computer projector is a kind of an output device, used to display image on a projection screen. It receives a video signal from computer and projects an image using a lens system.Main types of computer projectors are:LCD projectors,DLP projectors,LED projectorsHybrid ( LED and Laser diode) projectors.
LCD projectors and DLP projectors
Some lower-output projectors (and all of the new so-called 'nano' projectors) use LED's for their light source. Most higher-output projectors use incandescent halogen or HID lamps for the light source.
Teachers often use movie projectors, however not to project movies. Movie projectors can be purchased online on sites such as Amazon, eBay and the Staples website.
Yes, RadioShack does carry the top brand name HD projectors. They have a great selection of projectors available at reasonable prices.
You can find cheap projectors at many places online. Some of these places are www.bigboxstore.com/computers/projectors and www.nextag.com/cheap-projector/compare-html.
Marantz makes their own projectors. The DLP panel inside is made by Texas Instruments.
They make special mounting kits that make it super easy to install projectors
Sony are known for their projectors, and have a number of excellent ones for home theater use.
Hd projectors come in many shapes and sizes with a variety of features. The most common ones include 720p and 1080p projectors. 1080p projectors are the most advanced, giving you the best picture quality, but at the highest price. 720p projectors are slightly less in quality but are also cheaper. 1080p projectors start at about $1500 and 720p start at $300.
The PR6022 Portable XGA DLP Projector with Wireless USB to VGA Kit will work for that.
Modern projectors are either LCD or DLP based panels. Most medium-to large projectors use a halogen light source. Small 'pico' projectors use a LED light source.
All 500-series projectors can use the 581 tray.
All 500-series projectors can take the 593 tray.
HD projectors are, in general, not a cheap item to purchase. However, Best Buy does offer several HD projectors ranging in price from under $650 to over $1,400.
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