发明申请
- 专利标题： LASER INTERFERENCE DEVICE FOR TOUCH SCREENS
- 专利标题（中）： 用于触摸屏的激光干扰设备
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申请号： US12444706申请日： 2007-10-09
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公开(公告)号： US20100002238A1公开(公告)日： 2010-01-07
- 发明人: Cristian Presura , Gary Nelson Garcia Molina , Galileo June Destura
- 申请人： Cristian Presura , Gary Nelson Garcia Molina , Galileo June Destura
- 申请人地址： NL Eindhoven
- 专利权人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
- 当前专利权人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
- 当前专利权人地址： NL Eindhoven
- 国际申请： PCT/IB07/54107 WO 20071009
- 主分类号： G01B9/02
- IPC分类号： G01B9/02
摘要：
A system and method for location determination by laser interference detection uses a wide beamwidth laser projection (301) across a planar area (300). A lens system (222) is used to provide the wide beamwidth projection, and a split-beam system (225) is used to correlate interference patterns to particular segments of the wide beamwidth projection. The reflected interference beams are detected on a detector array (240) that is configured to detect the undulations corresponding to objects within the wide beamwidth projection.
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