发明名称 |
SHORT RANGE LIDAR APPARATUS HAVING A FLAT SPATIAL RESPONSE |
摘要 |
<p>A flat spatial response LIDAR apparatus for detecting particles within a short range is provided. The apparatus includes a light source projecting a light beam which is back-scattered by the particles to be detected. The back-scattered light is received, detected and analyzed. A spatial filter spatially filters the received back-scattered light in order to flatten the spatial response of the apparatus, so that a same concentration of particles at any distance within the short range will generate a signal of substantially the same intensity. This is for example accomplished by a properly profiled mask disposed in front of the detector, or a plurality of spatially distributed waveguides. As a result, the LIDAR apparatus can compensate for the 1/r<SUP>2</SUP> dependence, or other dependences of the back-scattered light on the distancer.</p> |
申请公布号 |
WO2007036010(A1) |
申请公布日期 |
2007.04.05 |
申请号 |
WO2005CA01520 |
申请日期 |
2005.09.30 |
申请人 |
INSTITUT NATIONAL D'OPTIQUE;BABIN, FRANCOIS;LEVESQUE, MARC |
发明人 |
BABIN, FRANCOIS;LEVESQUE, MARC |
分类号 |
G01S17/88 |
主分类号 |
G01S17/88 |
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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