Exposure control process and photographic color copying apparatu

Photocopying – Projection printing and copying cameras – Multicolor picture

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Details

355 77, G03B 2786, G03B 2732

Patent

active

050363514

ABSTRACT:
A exposure control process and a photographic color copying apparatus make possible the optimal adaptation of the evaluation of a copy master to the varying spectral sensitivities of different copy materials, without having to change the measuring filters. The measuring light components of each of the basic colors are detected by a wavelength selective detection device in at least two closely adjacent spectral ranges and the resultant measured values combined into prevailing color extract values.

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patent: 4827526 (1989-05-01), Matsumoto
patent: 4837711 (1989-06-01), Suzuki
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