Title:
BLADE DRIVING APPARATUS, SHUTTER APPARATUS AND OPTICAL EQUIPMENT HAVING THESE
Document Type and Number:
Japanese Patent JP2017049303
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shutter apparatus capable of improving durability of a light-shielding blade without hindering acceleration of a shutter speed.SOLUTION: A shutter apparatus includes a light-shielding blade 1 and driving means for driving the light-shielding blade 1 to open/close. In the light-shielding blade 1, an adhesion boundary 9a of a reinforcement member 9 is made into a waveform shape in order to prevent deterioration (damage) and exfoliation of the reinforcement member caused by repetitively driving the light-shielding blade 1 to open/close, so that weight saving of the light-shielding blade can be achieved and deterioration hardly occurs even with repetitive opening/closing movement of the light-shielding blade 1.SELECTED DRAWING: Figure 2
Inventors:
KATO KENTARO
Application Number:
JP2015170481A
Publication Date:
March 09, 2017
Filing Date:
August 31, 2015
Export Citation:
Assignee:
CANON DENSHI KK
International Classes:
G03B9/22; G03B9/00
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