Process and device for the photographic reproduction of diaposit

Details Process and device for the photographic reproduction of diaposit Process and device for the photographic reproduction of diaposit

1974-12-13

1977-05-13

O'Connor, Edna M.

Photocopying

Contact printing

Light boxes

354126, 355 71, G03B 1756, G03B 1503

Patent

active

040218317

ABSTRACT:
A process and device for the photographic reproduction of diapositives whereby during exposure of a film to light from an illuminated diapositive, the film is simultaneously partially fogged by diffuse light reaching the said film directly and without passing through the diapositive.

REFERENCES:
patent: 400140 (1889-03-01), Stockly
patent: 2301419 (1942-11-01), Lew
patent: 2621569 (1952-12-01), Glassey
patent: 3577898 (1971-05-01), Bragg
patent: 3619055 (1971-11-01), Archer et al.
patent: 3653760 (1972-04-01), Johnson
patent: 3689148 (1972-09-01), Black
patent: 3722998 (1973-03-01), Morse
patent: 3836923 (1974-09-01), Malick
patent: 3854815 (1974-12-01), McIntosh
patent: 3905701 (1975-09-01), David

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