发明申请
- 专利标题： DETECTION APPARATUS AND METHOD
- 专利标题（中）： 检测装置和方法
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申请号： US12553024申请日： 2009-09-02
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公开(公告)号： US20100052545A1公开(公告)日： 2010-03-04
- 发明人: Hiroyuki Horii
- 申请人： Hiroyuki Horii
- 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
- 优先权： JP2008-226987 20080904
- 主分类号： H05B41/38
- IPC分类号： H05B41/38
摘要：
A detection apparatus determines whether an output of the light-receiving unit meets a predetermined reference level when the light emission amount of the light-emitting unit is changed, under a condition that the output of the light-receiving unit changes according to a change in a light emission amount of the light-emitting unit. The detection apparatus detects, based on the output from the light-receiving unit, that the light emitted from the light-emitting unit to the light-receiving unit is blocked, under a condition that the light-emitting unit is emitting light based on a light emission amount emitted from the light-emitting unit when it has been determined that the output of the light-receiving unit meets the predetermined reference level.
公开/授权文献
- US08498530B2 Detection apparatus and method 公开/授权日：2013-07-30
信息查询
