Optical range finder

Details Optical range finder Optical range finder

1982-08-25

1985-07-30

Buczinski, S. C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 4, G01C 308

Patent

active

045318336

ABSTRACT:
An optical range finder comprising first and second light emitting sources, and first and second light receiving sources, the light emitting and receiving sources being so arranged as to form four optical paths between the first light emitting source and the first light receiving source, the first light emitting source and the second light receiving source, the second light emitting source and the first light receiving source, and the second light emitting source and the second light receiving source, at least one of the optical paths being a distance measuring optical path passing an object, the other optical paths being reference optical paths.

REFERENCES:
patent: 3520611 (1970-07-01), Picou
patent: 3619058 (1971-11-01), Hewlett
patent: 4165936 (1979-08-01), Eisenring et al.
patent: 4403857 (1983-09-01), Holscher
patent: 4413904 (1983-11-01), Hamada et al.

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