Optics: image projectors – Cabinet encloses projector and one side of screen – Reflector between lamp and screen
Patent
1990-08-06
1991-09-17
Cuchlinski, Jr., William A.
Optics: image projectors
Cabinet encloses projector and one side of screen
Reflector between lamp and screen
353 38, 353 20, 353122, 358 61, 359 40, 359 63, 359457, G03B 2128
Patent
active
050489496
ABSTRACT:
A liquid crystal projector includes a liquid crystal panel, a light source for illuminating the liquid crystal panel, a back-projection type screen having on its surface a lenticular lens in which many vertical or horizontal stripe lenses are arranged in parallel, a projection lens for enlargedly projecting light transmitted through the liquid crystal panel onto the back-projection type screen, a light-falling polarized plate arranged between the light-falling plane of the liquid crystal panel and the light source, for transmitting the light from the light source, and oscillating in a predetermined direction, to fall on the liquid crystal panel, and an image-forming polarizing plate arranged between the light-outgoing plane of the liquid crystal panel and the projection lens or in a projection path from the projection lens to the screen, to allow the liquid transmitted through the liquid crystal panel, and oscillating in a predetermined direction, to pass through, thereby forming a light image.
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patent: 4928123 (1990-05-01), Takafuji
Sato Makoto
Shimazaki Tatsuo
Casio Computer Co. Ltd.
Cuchlinski Jr. William A.
Dowling William C.
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