Optical 6D measurement system with two fan shaped beams rotating

Details Optical 6D measurement system with two fan shaped beams rotating Optical 6D measurement system with two fan shaped beams rotating

1996-06-14

1998-04-21

Hantis, K.

Optics: measuring and testing

By polarized light examination

With light attenuation

35613903, G01B 1114, G01B 1126

Patent

active

057423946

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 two modulated scanning beams of known angular orientation and rotational frequency. Timing circuitry located in the control processor determines the time interval .DELTA.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.

REFERENCES:
patent: 3375375 (1968-03-01), Abbey et al.
patent: 4818107 (1989-04-01), Ono et al.
patent: 5208641 (1993-05-01), Mocker et al.
patent: 5251013 (1993-10-01), Danielson et al.
patent: 5552883 (1996-09-01), Busch-Vishniac et al.

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