Slide-screen for back projection

Details Slide-screen for back projection Slide-screen for back projection

1981-06-12

1982-12-21

Wintercorn, Richard A.

G03B 2156

Patent

active

043646352

ABSTRACT:
A slide-screen for back projection has a standing and/or suspended frame (1) and a projection surface arranged within it. The projection surface is made double-skinned and consists of a plastics or similar translucent partition (3), which allows through light rays (5) coming from a reflector (4), and a natural or synthetic glass viewing screeen (2) which reflects the impinging light rays (5) in the direction of the translucent partition (3) preventing dissipation of the light.

REFERENCES:
patent: 2685817 (1954-08-01), Freeman
patent: 2730011 (1956-01-01), Kleinhample et al.
patent: 3720455 (1973-03-01), Sahlin
patent: 3951518 (1976-04-01), Kobayashi et al.
patent: 3998522 (1976-12-01), Holzel
patent: 4022522 (1977-05-01), Rain
patent: 4083626 (1978-04-01), Miyahara et al.
patent: 4089587 (1978-05-01), Schudel

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