Portable LCD projector

Details Portable LCD projector Portable LCD projector

1992-12-30

1994-08-30

Cuchlinski, Jr., William A.

Optics: image projectors

Housing

353 77, 353 78, G03D 2110

Patent

active

053432622

ABSTRACT:
A portable liquid crystal display (LCD) projector with a bag type housing containing therein an optical part and a mechanical part which is capable of being used in both front projection type and rear projection type and enhancing the carrying performance while having a proper screen size. The projector includes a fixed mirror and a movable mirror disposed between a projection screen and a screen, and a fixed LCD mirror disposed between the LCD and the projection lens. The screen is detachably mounted to a screen holder which is movably mounted to a housing and provided with a rectangular transmitting hole and mounted to the screen holder is a mirror holder attached with the movable mirror.

REFERENCES:
patent: 4645319 (1987-02-01), Fekete
patent: 4647166 (1987-03-01), Franken
patent: 4730919 (1988-03-01), Schuch
patent: 4875064 (1989-10-01), Umeda et al.
patent: 5004336 (1991-04-01), Saijo et al.
patent: 5090800 (1992-02-01), Ushiro

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