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Optique et Precision de Levallois SA
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Optique et Precision de Levallois SA
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Publication date
Application filed by Optique et Precision de Levallois SAfiledCriticalOptique et Precision de Levallois SA
Priority to FR747488ApriorityCriticalpatent/FR1217632A/fr
Application grantedgrantedCritical
Publication of FR1217632ApublicationCriticalpatent/FR1217632A/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
G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
G03B7/04—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark
G03B7/06—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark by a follow-up movement of an associated reference mark to the pointer
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR747488A1957-09-171957-09-17Dispositif du réglage automatique du temps de pose dans un appareil photographique
ExpiredFR1217632A
(fr)