发明授权
- 专利标题： Angle detecting apparatus and projector having the same
- 专利标题（中）： 角度检测装置和具有该角度检测装置的投影仪
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申请号： US10651525申请日： 2003-08-29
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公开(公告)号： US06862086B2公开(公告)日： 2005-03-01
- 发明人: Shiroshi Kanemitsu
- 申请人： Shiroshi Kanemitsu
- 申请人地址： JP Narashino
- 专利权人： Seiko Precision Inc.
- 当前专利权人： Seiko Precision Inc.
- 当前专利权人地址： JP Narashino
- 代理机构： Adams & Wilks
- 优先权： JP2002-253402 20020830
- 主分类号： G01B11/26
- IPC分类号： G01B11/26 ; G01C3/06 ; G01C3/08 ; G01C3/14 ; G03B21/14 ; H04N5/74 ; G01C1/00
摘要：
In an angle detecting apparatus and projector using range finder units, range finding calculations are performed in plural directions using line type passive range finders as the range finding units. An average value of inclination angles calculated based on the range finding calculations is selected as the inclination angle. Thus, if one range finding result has an abnormal value, the adverse effects thereof are reduced and the structure is miniaturized.
公开/授权文献
- US20040125364A1 Angle detecting apparatus and projector having the same 公开/授权日：2004-07-01
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