How to Buy a Multi Projector
Multi-projectors work in tandem to show an image or video to a large audience. Using 5 or 6 projectors, all showing the same picture, allows a high-resolution image to be shown on a screen visible to thousands of people. Three sections must be purchased, including the screen, projectors and controller.
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Screens
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There are two types of multi-projector screens to choose from: LED or lamp-lit screens. Both types are rear-projecting, which means that the picture is sent onto the screen from behind. An LED screen uses less electricity, but is more expensive, while a lamp-lit screen is cheaper, but does not have the same picture quality. Both screens come in sizes ranging from 50 to 100 inches.
Projectors
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The projector is, literally, what projects the picture at the screen. One thing to consider when choosing a projector is whether it is compatible with the rest of the system. The picture quality also is important. Most projectors can handle a 3000 by 6000 pixel ratio.
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Controllers
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The controller is a computerized tablet that allows you to arrange the correct settings for the multi-projector. It coordinates the projectors and keeps them from running out of sync. Often these are purchased at the same time as the rest of the system, as the controller must function on the same parameters as the screen and projectors.
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References
- Hp: E Pluribis Pluribis--Out Of Many Projectors, One Super Screen
- Barco: Multi-Projector Displays--Led-Lit (Rear-Projection) Video Walls
- Barco: Multi-Projector Displayes - Lamp-Lit (Rear-Projection) Video Walls
- Barco: XDS RACU Multi-Projector System Remote Controller
- Barco: Xdc-3000 Single-Channel, Ultra-High Resolution Display Wall With Superflat Screen
- Photo Credit Jupiterimages/Photos.com/Getty Images