发明申请
- 专利标题： Tracking separation between an object and a surface using a reducing structure
- 专利标题（中）： 使用减少结构跟踪物体和表面之间的分离
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申请号： US10977720申请日： 2004-10-30
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公开(公告)号： US20060091298A1公开(公告)日： 2006-05-04
- 发明人: Tong Xie , Marshall DePue , Susan Hunter
- 申请人： Tong Xie , Marshall DePue , Susan Hunter
- 主分类号： G06M7/00
- IPC分类号： G06M7/00
摘要：
Tracking separation between an object and a surface involves illuminating the surface and reducing the collection angle of light that reflects off of the surface in response to a change in separation between the object and the surface. Reducing the collection angle of light that reflects off of the surface causes the amount of light that is detected to be dependent on the separation distance between the object and the surface. The amount of detected light is then used as an indication of the separation distance.
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