Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1994-12-27
1997-02-25
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356 304, 356 306, 356 307, G01C 308, G01C 500
Patent
active
056064098
ABSTRACT:
A calibration device for a laser ranging system includes an interferometer assembly and a beam path magnifier assembly which is optically coupled to the interferometer assembly to receive a calibration beam therefrom and to the laser ranging system to receive a laser ranging beam therefrom. The calibration beam and the laser ranging beam enter the beam path magnifier assembly such that they pass along equidistant paths and so that the calibration beam is detected by the interferometer assembly to provide a precise measurement of the distance the calibration beam traveled and the laser ranging beam is detected by the laser ranging system to provide a measurement of the distance traveled by the laser ranging beam along the calibration optical path. Comparison of the two readings provides calibration data for the laser ranging system. The beam path multiplier assembly includes means for varying a folded calibration optical path length to provide a range of calibration beam path lengths. The means for varying the folded calibration optical path length include displaceable optical components disposed such that the folded calibration optical path length is determined by more than two reflections within the beam path magnifier assembly.
REFERENCES:
patent: 4068952 (1978-01-01), Erbert et al.
patent: 4121890 (1978-10-01), Braun
patent: 4963017 (1990-10-01), Schneiter et al.
patent: 5032023 (1991-07-01), Schneiter
patent: 5061062 (1991-10-01), Schneiter
patent: 5082362 (1992-01-01), Schneiter
patent: 5282014 (1994-01-01), Ruhl, Jr. et al.
A paper entitled, "A Reconfigurable Laser Ranging Instrument," Proc. SPIE Conf. on Optical Tools for Manufacturing and Advanced Automation, Sep. 7-10, 1993, Boston, MA.
Buczinski Stephen C.
General Electric Company
Ingraham Donald S.
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