Optics: measuring and testing – By polarized light examination – With light attenuation
Patent
1998-05-15
2000-09-05
Evans, F. L.
Optics: measuring and testing
By polarized light examination
With light attenuation
3561391, 3561522, 25055938, G01B 1126, G01B 1114, G01N 2186
Patent
active
061151289
ABSTRACT:
A small, non-contact optical sensor uses ranges and images to detect its relative position to an object in up to six degrees of freedom. The sensor has three light emitting range detectors which illuminate a target and can be used to determine distance and two tilt angles. A camera located between the three range detectors senses the three remaining degrees of freedom, two translations and one rotation. Various range detectors, with different light sources, e.g. lasers and LEDs, different collection options, and different detection schemes, e.g. diminishing return and time of flight can be used. This sensor increases the capability and flexibility of computer controlled machines, e.g. it can instruct a robot how to adjust automatically to different positions and orientations of a part.
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Evans F. L.
Grzybicki Daryl S.
Smith Zandra V.
The Regents of the Univerity of California
Thompson Alan H.
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