发明名称 Light control apparatus and optical apparatus
摘要 There is provided a light control apparatus that maintains the overall apparatus size small, increases the number of stop stages, and is suitable for both the shutter and stop actions. A light control apparatus includes a first actuator, a second actuator, a first light shielding member driven by the first actuator, and a second light shielding member driven by the second actuator, wherein in a stop adjusting action, the first and second actuators drive the first and second light shielding members and adjust an aperture formed by the first and second light shielding members, and wherein in a shutter action, the second actuator drives the second light-shielding member for a light shielding action.
申请公布号 US7374353(B2) 申请公布日期 2008.05.20
申请号 US20050245692 申请日期 2005.10.07
申请人 CANON KABUSHIKI KAISHA 发明人 MASUDA SHINICHI
分类号 G03B9/00;G03B9/08 主分类号 G03B9/00
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