Front projection system embodying a single lens

Details Front projection system embodying a single lens Front projection system embodying a single lens

1976-07-19

1978-01-03

Gonzales, John

Optics: motion pictures

Removable film strip magazine type

352 89, 353 28, 354291, 355 45, G03B 2900

Patent

active

040670260

ABSTRACT:
A front projecting system comprising a single lens which is used for photographing an object and also for projecting at the same time a transparency or image on a screen background located behind the object. With such a novel front projecting apparatus, many of the alignment problems associated with prior art dual lens front projection systems are eliminated and because of the exact registration between the object image and its shadow cast on the background, dark edge outlines (or object shadows) are also eliminated.

REFERENCES:
patent: 2372430 (1945-03-01), Kals
patent: 2727429 (1955-12-01), Jenkins
patent: 2940371 (1960-06-01), Thurow
patent: 3318185 (1967-05-01), Kott
patent: 3322487 (1967-05-01), Renner

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