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Application filedfiledCritical
Priority to JP1980129965UpriorityCriticalpatent/JPS6139376Y2/ja
Priority to US06/300,613prioritypatent/US4473281A/en
Publication of JPS5754121UpublicationCriticalpatent/JPS5754121U/ja
Application grantedgrantedCritical
Publication of JPS6139376Y2publicationCriticalpatent/JPS6139376Y2/ja
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
G03B9/02—Diaphragms
G03B9/06—Two or more co-operating pivoted blades, e.g. iris type