发明名称 |
DEVICE AND METHOD FOR MEASURING RELATIVE MOVEMENT |
摘要 |
A device for measuring movement of an object (15) and the device relative to each other. The device comprises a laser (3) for generating a measuring beam (13), which is converged by a lens (10) in an action plane. Radiation reflected by the object (15) is converged to re-enter the laser cavity to generate a self-mixing effect in the laser (3). Measuring means (4) are provided to receive the reflected measuring beam radiation and enable the frequency difference between the measuring beam (13) and the reflected measuring beam radiation to be determined, which is representative of the relative movement. |
申请公布号 |
WO2007072446(A2) |
申请公布日期 |
2007.06.28 |
申请号 |
WO2006IB54980 |
申请日期 |
2006.12.20 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;U.S. PHILIPS CORPORATION;HEINKS, CARSTEN;SCHEMMANN, MARCEL |
发明人 |
HEINKS, CARSTEN;SCHEMMANN, MARCEL |
分类号 |
G01S7/491;G01P3/36;G01S17/50 |
主分类号 |
G01S7/491 |
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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