发明授权
- 专利标题： Distance measuring system
- 专利标题（中）： 距离测量系统
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申请号： US391394申请日： 1982-06-23
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公开(公告)号： US4429967A公开(公告)日： 1984-02-07
- 发明人: Ryuji Tokuda , Masahiko Ogawa , Tokuichi Tsunekawa , Shuichi Tamura
- 申请人： Ryuji Tokuda , Masahiko Ogawa , Tokuichi Tsunekawa , Shuichi Tamura
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 优先权： JPX53-51856 19780428
- 主分类号： G01C3/06
- IPC分类号： G01C3/06 ; G01C3/00 ; G01S7/48 ; G01S17/08 ; G01S17/46 ; G02B7/32 ; G03B13/36 ; G03B3/00 ; G01C3/10
摘要：
In the distance measuring system disclosed, light reflected from an object is converted into an electrical signal and processed to detect the distance to the object. Before the distance detecting operation, a signal level detecting operation is carried out in the distance measuring range and the gain of the signal processing or the amount of light for illuminating the object is automatically set for the distance detecting operation.
公开/授权文献
- US5794329A Support apparatus for circuit board 公开/授权日：1998-08-18
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