发明授权
- 专利标题： Camera
- 专利标题（中）： 相机
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申请号： US295361申请日： 1981-08-24
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公开(公告)号： US4389111A公开(公告)日： 1983-06-21
- 发明人: Masanori Uchidoi , Yoshihiro Shigeta , Ryoichi Yoshikawa , Yoichi Tosaka , Shosuke Haraguchi
- 申请人： Masanori Uchidoi , Yoshihiro Shigeta , Ryoichi Yoshikawa , Yoichi Tosaka , Shosuke Haraguchi
- 申请人地址： JPX 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： JPX Tokyo
- 优先权： JPX55-118621[U] 19800828
- 主分类号： G03B7/08
- IPC分类号： G03B7/08 ; G03B7/093 ; G03B7/26 ; G03B9/08 ; G03B17/00 ; G03B1/18
摘要：
A camera includes a shutter which is electromagnetically closed at the end of a given exposure time. Circuitry in the camera operates to prevent a prolonged opening of the shutter from occurring when the camera battery voltage drops below a satisfactory operating level during an exposure, wherein the shutter mechanism is forcibly recharged.