Exposure control process and photographic color copying...

Details Exposure control process and photographic color copying... Exposure control process and photographic color copying...

G - Physics

03

B

95/25

G03B 27/00 (2006.01) G03B 27/73 (2006.01)

Patent

CA 2026350

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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