Rotating position measuring instrument

Details Rotating position measuring instrument Rotating position measuring instrument

2007-05-08

2007-05-08

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C356S004010, C356S141100

Reexamination Certificate

active

10320235

ABSTRACT:
A position measuring instrument according to the present invention comprises a turning unit and a fixed unit, irradiates a target to be measured with measuring light to determine a distance, a direction, and a position on the basis of its reflected light. A light source unit emits measuring light; a light receiving unit receives its reflected light; a radiating means radiates measuring light in a direction which can be set freely, and directs its reflected light to the light receiving unit; an angle detecting means detects a direction in which the radiating means radiates light; the light source unit and the light receiving unit are fixedly provided; the light source unit emits measuring light toward the radiating means; and the light receiving unit receives reflected light from the target to be measured.

REFERENCES:
patent: 6011613 (2000-01-01), Ohtomo et al.
patent: 6556598 (2003-04-01), Angott

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