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Title:
LIGHT QUANTITY ADJUSTING DEVICE AND OPTICAL APPARATUS
Document Type and Number:
Japanese Patent JP2014164049
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light quantity adjusting device capable of being downsized, and to provide an optical apparatus equipped with the light quantity adjusting device and a lens.SOLUTION: A light quantity adjusting device 10 changes the size of a light passage opening using a plurality of light quantity adjusting blades 31-36. The plurality of light quantity adjusting blades 31-36 include blades 31b-36b for forming the light passage opening and bases 31a-36a having thicknesses thicker than those of the blades 31b-36b, and forms the light passage opening by overlapping only adjacent blades in a circular pattern, with a first shaft serving as a rotary shaft provided on the bases 31a-36a as a supporting point.

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Inventors:
INUI YUSUKE
Application Number:
JP2013033747A
Publication Date:
September 08, 2014
Filing Date:
February 22, 2013
Export Citation:
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Assignee:
CANON DENSHI KK
International Classes:
G03B9/06; G03B9/00



 
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