Optics: motion pictures – Removable film strip magazine type
Patent
1985-02-01
1986-07-01
Wintercorn, Richard A.
Optics: motion pictures
Removable film strip magazine type
40212, 352 69, 353 13, G03B 2156
Patent
active
045976333
ABSTRACT:
An image reception system is provided with an inflatable viewing surface. A video projection system is arranged within the volume defining the viewing surface to form images on interior concave surfaces. The projected image is viewed on the outside convex surface. The concave image reception surfaces permit large area projection surfaces with a projection system having a short focal length.
REFERENCES:
patent: 2592444 (1952-04-01), Matelena
patent: 3720455 (1973-03-01), Sahlin
patent: 4022522 (1977-05-01), Rain
patent: 4323301 (1982-04-01), Spector
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