Range finder

Details Range finder Range finder

1982-08-23

1984-10-16

Perkey, William B.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 1, G03B 1320, G01C 308

Patent

active

044771681

ABSTRACT:
In the disclosed optical device, independent light sensors located at separate positions which receive light projected by a projector and reflected by an object whose distance is to be measured, produce outputs corresponding to their respective positions. A distance indicator indicates the distance to the object on the basis of the ratio of outputs of the sensors.

REFERENCES:
patent: 3820129 (1974-06-01), Hosoe et al.
patent: 4274735 (1981-06-01), Tamura et al.

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