Multiple channel optical flying spot triangulation ranger system
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United States of America Patent
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Feb 13, 1990
Grant Date -
N/A
app pub date -
Mar 18, 1988
filing date -
Mar 18, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Multiple light detection channels are introduced into a flying spot optical triangulation ranging system to increase the speed of acquiring range values. A laser beam is rapidly swept across a surface by a beam deflector. Each fiber optic channel can receive light only from a different point along a line at the intersection of the swept beam with the surface. The receiver channels are duplicated and separate detectors generate signal pulses at times that are a function of range to the surface. These are processed in parallel to calculate N range values per beam sweep, where N is the number of channels.
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