发明名称 |
METHOD AND DEVICE FOR RECORDING A THREE-DIMENSIONAL DISTANCE-MEASURING IMAGE |
摘要 |
The invention relates to methods and devices for recording three-dimensional distance-measuring images of an object surface by measuring light propagation time using a short-term integrated photodetector. For starting a light-induced pulse on the transmission side, a trigger signal is produced that is at the same time used on the receiving side for opening at least one integration window for receiving back-scattered light-induced pulses with a predetermined time delay. A predetermined event such as a maximum or a zero crossing is detected which, by its interval relative to the integration windows, determines a trigger delay. The trigger delay is correlated with the light propagation time and allows calculation of the object point distance d. |
申请公布号 |
EP1423731(B1) |
申请公布日期 |
2006.10.04 |
申请号 |
EP20020754481 |
申请日期 |
2002.08.01 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
MENGEL, PETER;DOEMENS, GUENTER |
分类号 |
G01B11/24;G01S17/89;G01S7/487;G01S17/08;G01S17/10 |
主分类号 |
G01B11/24 |
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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