发明授权
- 专利标题： Focus detecting device
- 专利标题（中）： 对焦检测装置
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申请号： US714470申请日： 1996-09-16
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公开(公告)号： US5667270A公开(公告)日： 1997-09-16
- 发明人: Akira Akashi , Hiroshi Matsushima
- 申请人： Akira Akashi , Hiroshi Matsushima
- 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： JPX3-180978 19910722; JPX3-182516 19910723
- 主分类号： G02B7/34
- IPC分类号： G02B7/34 ; G03B13/36
摘要：
Improved accuracy is contrived in a focus detecting device for finding the amount of correlation between signals corresponding to images received on first and second sensor arrays. A picture element signal of each sensor is duplicated and taken out as a signal of a double information amount, thereby enabling correlation calculation to be effected accurately.
公开/授权文献
- US5155128A Medicaments for the treatment of cerebral apoplexy 公开/授权日：1992-10-13
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