发明名称 |
POSITION-SENSING DEVICE FOR 3-D PROFILOMETERS |
摘要 |
An apparatus for sensing position data of a light pattern created by a known light source on an object, comprising an optical. system for collecting an incident light beam of the light pattern and transmitting the incident light beam to a beam splitter. The beam splitter has a known reflection/transmission ratio, such that the incident light beam from the light pattern received on the surface of the beam splitter results in a transmission channel, transmitted through the beam splitter, and a reflective channel, reflected from the beam splitter, with intensities of the transmission channel and the reflective channel varying as a function of a position of the incident light beam on the surface of the beam splitter. Detectors detect the intensities of the reflective channel and of the transmission channels. Dimensions of points of the light pattern on the object are calculable as a function of the intensity of the reflective channel and of the intensity of the transmission channel.
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申请公布号 |
CA2424441(A1) |
申请公布日期 |
2004.09.30 |
申请号 |
CA20032424441 |
申请日期 |
2003.03.31 |
申请人 |
INSTITUT NATIONAL D'OPTIQUE |
发明人 |
BOULANGER, DENIS;LAURENT, JOHN;DOUCET, MICHEL |
分类号 |
G01B11/02;G01B11/24;(IPC1-7):G01B11/00;G01S17/89 |
主分类号 |
G01B11/02 |
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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