Microfilm cameras

Details Microfilm cameras Microfilm cameras

1975-04-28

1976-06-15

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

350255, 352222, 354123, 354203, 355 53, G03B 2760

Patent

active

039633462

ABSTRACT:
A microfilm camera which includes a suction plate for holding a sheet of film. The suction plate is movable in steps across a picture gate. Between the objective lens and the contact surfaces of the picture gate there is a chamber formed at one end by a glass plate. The chamber is connected to a vacuum pump through a suction conduit. The suction conduit can be closed by a valve.

REFERENCES:
patent: 3094036 (1963-06-01), Benson
patent: 3295407 (1967-01-01), Jeffree
patent: 3433564 (1969-03-01), Lahr
patent: 3525291 (1970-08-01), Hakamata
patent: 3645622 (1972-02-01), Cachon et al.

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