Distance measuring device

Details Distance measuring device Distance measuring device

1984-04-16

1986-03-11

Perkey, William B.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 1, G03B 1320, G01C 306

Patent

active

045752117

ABSTRACT:
The disclosed distance measuring device is arranged to project light on an object. Reflected light from the object is received by a photo-electric converter to shift the position of a photo-taking lens to an in-focus position on the basis of a signal produced from the photo-electric converter. The projected light and/or the reflected light is divided into a multiplicity of light fluxes for the purpose of broadening and simplifying the distance measuring range and accuracy.

REFERENCES:
patent: 4310227 (1982-01-01), Zinchuk
patent: 4371261 (1983-02-01), Tsuji
patent: 4441810 (1984-04-01), Momose
patent: 4470681 (1984-09-01), Johnson

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