FR819657A - Perfectionnements aux objectifs photographiques et aux appareils de prise de vues comportant des posemètres photoélectriques
- Google Patents
Perfectionnements aux objectifs photographiques et aux appareils de prise de vues comportant des posemètres photoélectriques
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Kodak Pathe SA
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Kodak Pathe SA
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Publication of FR819657ApublicationCriticalpatent/FR819657A/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
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General Physics & Mathematics
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FR819657D1936-03-231937-03-23Perfectionnements aux objectifs photographiques et aux appareils de prise de vues comportant des posemètres photoélectriques
ExpiredFR819657A
(fr)