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Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to JP16976288UpriorityCriticalpatent/JPH0290832U/ja
Priority to GB8928961Aprioritypatent/GB2226648A/en
Priority to DE19893942949prioritypatent/DE3942949A1/de
Publication of JPH0290832UpublicationCriticalpatent/JPH0290832U/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
G03B9/08—Shutters
G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane