发明名称 |
Optical device that measures distance between the device and a surface |
摘要 |
An optical device and methods thereof are described. The device includes a first light source adapted to emit light onto a surface, and a detector adapted to receive light reflected from the surface. The reflected light produces a speckle pattern. The distance between the optical device and the surface can be measured using a quantifiable attribute associated with the speckle pattern.
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申请公布号 |
US7427981(B2) |
申请公布日期 |
2008.09.23 |
申请号 |
US20040826799 |
申请日期 |
2004.04.15 |
申请人 |
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. |
发明人 |
DEPUE MARSHALL THOMAS;SCHROEDER DALE W.;XIE TONG |
分类号 |
G01C3/06;G01D5/30;G06F3/03;G06F3/033 |
主分类号 |
G01C3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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