Optics: image projectors – Plural projection paths with single light source
Patent
1989-04-14
1990-02-27
Miller, Stanley D.
Optics: image projectors
Plural projection paths with single light source
350331R, 350345, 353 25, 353 31, 353 33, 353 34, 353122, G02F 113
Patent
active
049040618
ABSTRACT:
A projection-type display device for producing a faithful colored synthesized image based on equating the luminous intensity distributions and light patterns produced by three twisted nematic liquid crystal light valves for three primary color images. Each light valve includes a twisted nematic liquid crystal composition which is twisted to the right or left depending on the number of times that color light is reflected. Each light valve may include an active switching matrix arranged in mirror-like symmetry with light shield layers also arranged symmetrically.
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Gallivan Richard
Miller Stanley D.
Seiko Epson Corporation
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