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video projector
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image projector that receives a video signal and projects the corresponding image on a projection screen using a lens system
~9 min read
Encyclopedic overview
A projector in a standard form factor: The PG-D2870 projector from Sharp, which uses digital light processing technology An image from a video projector in a home cinema
A video projector, also known as a data projector or digital projector, is an image projector that receives a video signal and projects the corresponding image onto a projection screen using a lens system. Video projectors use a very bright ultra-high-performance lamp (a special mercury arc lamp), Xenon arc lamp, metal halide lamp, LED or solid state blue, RB, RGB or fiber-optic lasers to provide the illumination required to project the image. Most modern projectors can correct any curves, blurriness and other inconsistencies through manual settings.
Excerpted from Wikipedia’s “video projector” article, available under the CC BY-SA 4.0 licence.