发明名称 |
Light quantity adjusting apparatus and image-pickup apparatus |
摘要 |
A light quantity adjusting apparatus which comprises a light-shielding member and a driving unit which drives the opening/closing of the light-shielding member is disclosed. Herein, the light-shielding member is provided with a reinforcement member attached to a partial range including an area liable to deterioration due to repeated opening/closing driving operations.
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申请公布号 |
US7163344(B2) |
申请公布日期 |
2007.01.16 |
申请号 |
US20030684931 |
申请日期 |
2003.10.14 |
申请人 |
CANON DENSHI KABUSHIKI KAISHA |
发明人 |
SATOH HIRONOBU |
分类号 |
G03B9/14;G03B9/26;G03B9/10;G03B9/70 |
主分类号 |
G03B9/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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