Rear projection screen

Details Rear projection screen Rear projection screen

1984-06-12

1985-11-05

Wintercorn, Richard A.

G03B 2160

Patent

active

045509778

ABSTRACT:
A rear projection screen has a viewer's side and a projection side on which the image of a source is projected so that the projected image is visible from the viewer's side through the screen. The rear projection screen has a lenticular lens formed on the viewing side and including a multiplicity of vertically extending lens units each being provided at its both sides with total reflection surfaces. The lenticular lens further includes in the troughs between adjacent lens units a multiplicity of refraction elements which diffuse the light in the vertical direction. The angular field of vision is increased in the horizontal direction by the vertical lens units and also in the vertical direction by the refraction elements.

REFERENCES:
patent: 4147408 (1979-04-01), Plummer
patent: 4165154 (1979-08-01), Takahashi
patent: 4309073 (1982-01-01), Nishimura et al.
patent: 4374609 (1983-02-01), Lange
patent: 4418986 (1983-12-01), Yata et al.
patent: 4452509 (1984-06-01), Van Breemen
patent: 4469402 (1984-09-01), Yata et al.
patent: 4509822 (1985-04-01), Clausen et al.
patent: 4512631 (1985-04-01), Van Breemen

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