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Application filedfiledCritical
Priority to FR69047820ApriorityCriticalpatent/FR1503992A/fr
Application grantedgrantedCritical
Publication of FR1503992ApublicationCriticalpatent/FR1503992A/fr
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B27/00—Photographic printing apparatus
G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
Landscapes
Physics & Mathematics
(AREA)
Spectroscopy & Molecular Physics
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General Physics & Mathematics
(AREA)
FR69047820A1966-10-121966-10-12Procédé de contrôle visuel du résultat de la sélection en photogravure, et appareil pour sa mise en oeuvre
ExpiredFR1503992A
(fr)