Method and device for simultaneous screening of sets of color-se

Details Method and device for simultaneous screening of sets of color-se Method and device for simultaneous screening of sets of color-se

1974-12-17

1977-06-07

O'Connor, Edna M.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

355 52, 355 76, G03B 2760, G03B 2764, G03B 2768

Patent

active

040279693

ABSTRACT:
Apparatus for simultaneous screening of sets of color-separated half-tone negatives, two or more registering images of the negatives can be projected simultaneously on photographic film by adjusting the configuration of the film support to counteract the distortion caused by the reproduction lens. For this purpose, a film support plate is devised, the surface of which can be locally deformed accordingly by adjustment of screw members.

REFERENCES:
patent: 1945481 (1934-01-01), Dilkes
patent: 2130793 (1938-09-01), Eliel
patent: 2565446 (1951-08-01), Abbott
patent: 3617122 (1971-11-01), Saito
patent: 3692407 (1972-09-01), Ramsay

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