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Priority to FR43013ApriorityCriticalpatent/FR1346383A/fr
Application grantedgrantedCritical
Publication of FR1346383ApublicationCriticalpatent/FR1346383A/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
G03B17/00—Details of cameras or camera bodies; Accessories therefor
G03B17/18—Signals indicating condition of a camera member or suitability of light
G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR43013A1962-11-061962-11-06Dispositif de contrôle de l'intensité lumineuse pour appareils de prises de vues photographiques et cinématographiques
ExpiredFR1346383A
(fr)
Méthode et dispositif pour déterminer automatiquement l'exposition d'un matériau photosensible donné, basés sur l'intensité lumineuse et le contraste d'une image réelle