Photographic printing apparatus

Photocopying – Projection printing and copying cameras – Multicolor picture

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355 68, G03B 2780

Patent

active

053920937

ABSTRACT:
A photographic printing apparatus having a single light source and a reflecting mirror. The mirror is provided between the light source and the light-modulating device having light-modulating filters, a mirror tunnel and diffusers and has a light-passing portion. Most part of the light from the light source is reflected by the mirror and used for exposing negative films after passing it through the light-modulating device. The remainder of the light from the light source passes through the light-passing portion and is used for scanning.

REFERENCES:
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patent: 2158903 (1939-05-01), Knobel
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patent: 4011446 (1977-03-01), Swanberg
patent: 4371259 (1983-02-01), Howitt
patent: 4492457 (1985-01-01), Kawada et al.
patent: 4668082 (1987-05-01), Terashita et al.
Patent Abstracts of Japan, vol. 13, No. 463 (E-833) Oct. 19, 1989.
Patent Abstracts of Japan, vol. 16, No. 131 (P-1332) Apr. 3, 1992.

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