Projector with improved screen

Details Projector with improved screen Projector with improved screen

1996-02-08

1997-12-02

Malley, Daniel P.

Optical: systems and elements

Projection screen

Rear projection screen

359443, 359453, 359455, 348794, 353 74, 353 98, G03B 2128

Patent

active

056942451

ABSTRACT:
A projector comprising liquid crystal display panels and a projection lens for projecting the modulated light to a screen. The screen includes a transparent plastic member formed as a lenticular lens. The transparent plastic member has optical anisotropy. In order to eliminate an uneven pattern appearing in the screen caused by optical anisotropy and the difference between the light distribution characteristics in the screen for P- and S-polarized lights, the screen is arranged relative to the projection lens such that an arbitrary light component projected by the projection lens and made incident to the screen is not parallel to the optical axis of the plastic member.

REFERENCES:
patent: 5048949 (1991-09-01), Sato et al.
patent: 5278595 (1994-01-01), Nishida et al.
patent: 5379080 (1995-01-01), Onozuka
patent: 5506642 (1996-04-01), Suzuhi et al.
patent: 5523128 (1996-06-01), Hoh et al.

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