FR854596A - Glace semi-transparente et télémètre en comportant application pour la mise au point automatique d'un appareil de photographie stéréoscopique à court foyer
- Google Patents
Glace semi-transparente et télémètre en comportant application pour la mise au point automatique d'un appareil de photographie stéréoscopique à court foyer
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Jules Richard SA Des Ets
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Jules Richard SA Des Ets
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Application filed by Jules Richard SA Des EtsfiledCriticalJules Richard SA Des Ets
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Publication of FR854596ApublicationCriticalpatent/FR854596A/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
G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
G03B13/18—Focusing aids
G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera
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Physics & Mathematics
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General Physics & Mathematics
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FR854596D1939-01-071939-01-07Glace semi-transparente et télémètre en comportant application pour la mise au point automatique d'un appareil de photographie stéréoscopique à court foyer
ExpiredFR854596A
(fr)
Glace semi-transparente et télémètre en comportant application pour la mise au point automatique d'un appareil de photographie stéréoscopique à court foyer
Glace semi-transparente et télémètre en comportant application pour la mise au point automatique d'un appareil de photographie stéréoscopique à court foyer