Optical 6D measurement system with three fan-shaped beams rotating around one axis
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United States of America Patent
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Jun 16, 1998
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N/A
app pub date -
Jun 14, 1996
filing date -
Jun 14, 1996
priority date (Note) -
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Abstract
A system for the determination of the distance and orientation of an object carrying at least three light sensors from a fixed reference point when the object is irradiated by at least three modulated scanning beams of known angular orientation, and rotational frequency. Timing circuitry located in the control processor determines the time interval .increment.t , between successive interceptions of the object by each of the beams. Knowledge of this time interval and the scanning beams' relative positions and angular orientations permits calculation of the object's spatial coordinates. The optical beams utilized are fan-shaped in cross-section. The method of operation is also disclosed.
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