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ViewSonic Corporation is an American privately held multinational electronics company with headquarters in Brea, California, United States. The company was founded in 1987 as Keypoint Technology Corporation by James Chu and was renamed to its present name in 1993, after a brand name of monitors launched in 1990.
A three-chip DLP projector uses a prism to split light from the lamp, and each primary color of light is then routed to its own DMD chip, then recombined and routed out through the lens. Three chip systems are found in higher-end home theater projectors, large venue projectors and DLP Cinema projection systems found in digital movie theaters.
LED projectors use one of the above-mentioned technologies for image creation, with an array of light-emitting diodes (LEDs)as the light source, negating the need for lamp replacement. Hybrid LED and laser diode system developed by Casio. Uses a combination of LEDs and 445 nm laser diodes as the light source, while image is processed with DLP chip.
A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens, but some newer types of projectors can project the image directly, by using lasers.
Talaria was the brand name of a large-venue video projector from General Electric introduced in 1983. [1]Early model GE Talaria light valve video projector. Light from a Xenon arc lamp was modulated by a light valve consisting of a rotating glass disc that was continuously re-coated with a viscous oil.
To display images, LCD (liquid-crystal display) projectors typically send light from a metal-halide lamp through a prism or series of dichroic filters that separates light to three polysilicon panels – one each for the red, green and blue components of the video signal. As polarized light passes through the panels (combination of polarizer ...
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