G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 11/00 (2006.01) G01B 11/24 (2006.01) G01S 17/89 (2006.01)
Patent
CA 2424441
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.
Boulanger Denis
Doucet Michel
Laurent John
Institut National D'optique
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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