发明授权
US4502769A Quick-return mirror driving mechanism for single-lens reflex cameras
失效
用于单镜头反光相机的快速反光镜驱动机构
- 专利标题： Quick-return mirror driving mechanism for single-lens reflex cameras
- 专利标题（中）： 用于单镜头反光相机的快速反光镜驱动机构
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申请号： US473628申请日： 1983-03-09
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公开(公告)号： US4502769A公开(公告)日： 1985-03-05
- 发明人: Masao Nakamori , Yasuo Ishiguro
- 申请人： Masao Nakamori , Yasuo Ishiguro
- 申请人地址： JPX Tokyo
- 专利权人： Copal Company Limited
- 当前专利权人： Copal Company Limited
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX57-38504 19820311
- 主分类号： G03B19/12
- IPC分类号： G03B19/12
摘要：
A quick-return mirror driving mechanism for single-lens reflex cameras so formed that the release of a mirror-up operating member and the release of a mirror-down operating member are effected by a single electromagnetic means, in order to eliminate a mechanical connection between the shutter mechanism and quick-return mirror driving mechanism and, therefore, to simplify the mechanism as a whole.
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