Frame for partial illumination in photocopying of negatives, dia

Details Frame for partial illumination in photocopying of negatives, dia Frame for partial illumination in photocopying of negatives, dia

1979-07-26

1981-01-27

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

355 44, 355 55, G03B 2758

Patent

active

042471990

ABSTRACT:
A frame for partial illumination in copying of negatives, diapositives and the like onto a copying paper, has a paper-receiving plate with a paper supporting face, a cover plate alternatively positionable onto and withdrawable from the paper-receiving plate, and a member located adjacent to the paper-receiving plate and forming a focusing face at the height of the paper-supporting face. The member may be attached to the paper-supporting plate or to the cover plate. It may be formed as an actuating member of a paper-lifting device.

REFERENCES:
patent: 3295408 (1967-01-01), Rab
patent: 4165934 (1979-08-01), Zimmet

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