发明授权
US07726889B2 Optical device and method for removing foreign substances from the optical device
有权
用于从光学装置中除去异物的光学装置和方法
- 专利标题： Optical device and method for removing foreign substances from the optical device
- 专利标题（中）： 用于从光学装置中除去异物的光学装置和方法
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申请号： US11736345申请日： 2007-04-17
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公开(公告)号： US07726889B2公开(公告)日： 2010-06-01
- 发明人: Yoshiharu Tenmyo
- 申请人： Yoshiharu Tenmyo
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Cowan, Liebowitz & Latman, P.C.
- 优先权： JP2006-115010 20060418
- 主分类号： G03B9/08
- IPC分类号： G03B9/08
摘要：
Foreign substances adhered to a focal plane shutter are shaken off by vibrationally driving the shutter a plurality of times in succession while the focal plane shutter, which controls the incidence of light on a photoelectric transducer converting an optical image of a photographic object into an electrical signal, shields the photoelectric transducer from light incident thereon. In other words, implementing vibrational removal of adhered foreign substances by means of overloading the focal plane shutter.
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