发明名称 |
LIGHT QUANTITY ADJUSTMENT DEVICE AND OPTICAL DEVICE |
摘要 |
A light amount adjustment device of this invention includes a light path forming member including an aperture which forms a light path, a plurality of light amount adjustment members which adjust the amount of light which passes through the aperture, and a plurality of movement means for linearly advancing and retracting the light amount adjustment members with respect to the aperture. |
申请公布号 |
EP2952959(A1) |
申请公布日期 |
2015.12.09 |
申请号 |
EP20140745922 |
申请日期 |
2014.01.27 |
申请人 |
CANON DENSHI KABUSHIKI KAISHA |
发明人 |
SATO, OSAMU;MIYASHITA, KYOUSUKE |
分类号 |
G03B11/00;G02B5/00;G02B5/20;G02B5/22;G03B9/02 |
主分类号 |
G03B11/00 |
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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