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Voigtlander AG
Original Assignee
Voigtlander AG
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Publication date
Application filed by Voigtlander AGfiledCriticalVoigtlander AG
Application grantedgrantedCritical
Publication of FR1124049ApublicationCriticalpatent/FR1124049A/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
G03B9/00—Exposure-making shutters; Diaphragms
G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR1124049D1954-02-181955-02-17Dispositif pour le réglage, notamment pour l'armement de l'obturateur d'appareils photographiques à soufflet
ExpiredFR1124049A
(fr)