Device for holding a film on a focal plane

Details Device for holding a film on a focal plane Device for holding a film on a focal plane

1980-04-30

1982-12-14

Haroian, Harry N.

Optics: image projectors

Film gate

353 26R, 352222, G03B 2114, G03B 148

Patent

active

043635385

ABSTRACT:
A photographic film like a microfilm is maintained on a focal plane by suction. A film support having a vacuum suction holes is made of a drafty material to allow draft while the film is maintained flat on the surface thereof by suction. Further, the film support has cushion to protect the film from scratches. Thus, the film can be fed on while being kept flat on a focal plane on the film support.

REFERENCES:
patent: 2174660 (1939-10-01), Hirsch
patent: 3267801 (1966-08-01), Abbott et al.
patent: 3400995 (1968-09-01), Borberg et al.
patent: 3645621 (1972-02-01), Wally

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