Range finder

Details Range finder Range finder

1995-12-18

1998-05-19

Hellner, Mark

Optics: measuring and testing

Range or remote distance finding

Triangulation ranging to a point with one projected beam

396120, G01C 300

Patent

active

057542813

ABSTRACT:
An apparatus that measures the distance to an object by projecting light, receiving reflected light of the projected light through at least two light receiving devices disposed at different positions, and combining information from the two light receiving device to cancel, the influence of a change in the centroid position of the reflected light at the same distance. The apparatus has a signal processor performs a first processing operation for determining the distance to the object by combining information from the two light receiving devices, and a second processing operation for determining the distance to the object using information from only one of the two light receiving devices.

REFERENCES:
patent: 4814810 (1989-03-01), Ishiguro
patent: 5264893 (1993-11-01), Nonaka
patent: 5361117 (1994-11-01), Nonaka
patent: 5613167 (1997-03-01), Suzuki

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