发明名称 |
OPTICAL SENSOR MODULE AND ITS MANUFACTURE |
摘要 |
<p>The invention relates to an optical sensor module (1) for a measuring device. Said module comprises at least one optical sensor (2) including a diode laser (3) having a laser cavity for generating a measuring beam, the diode laser being attached to a substrate (12), converging means (5) (such as a lens). During measuring, such converging means (5) converges the measuring beam in an action plane and converges in the laser cavity the measuring beam radiation that has been back-scattered by an object to generate a self-mixing effect and means for measuring the self-mixing effect. Later means comprise a photo diode (4) and an associated signal processing circuitry. According to an essential aspect of the invention, that the diode laser (3) is configured to emit laser radiation of a wavelength for which the substrate (12) being attached to the diode laser (3) is transparent. This configuration leads to an essentially simple (and therefore cheap) sensor module.</p> |
申请公布号 |
EP2171811(A2) |
申请公布日期 |
2010.04.07 |
申请号 |
EP20080776444 |
申请日期 |
2008.06.23 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
SCHEMMANN, MARCEL, F., C.;PRUIJMBOOM, ARMAND;BOOIJ, SILVIA, M.;WERNER, KLAUS, P. |
分类号 |
H01S5/022;G06F3/03;H01S5/183 |
主分类号 |
H01S5/022 |
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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