System for adjusting the orientation of a plane of laser light

Details System for adjusting the orientation of a plane of laser light System for adjusting the orientation of a plane of laser light

1997-04-11

1998-12-01

Font, Frank G.

Optics: measuring and testing

Fiducial instruments

Artificial reference

356249, G01B 1126

Patent

active

058446796

ABSTRACT:
A system for adjusting the orientation of a plane defined by a rotating laser beam from a laser transmitter is provided. The laser beam is swept across one or more targets having a plurality of sections. The targets each include a first reflective section and a second reflective section with a non-reflective section positioned therebetween. The non-reflective section includes a portion which slopes across the reflective sections. A photodetector detects a signal representative of the laser beam reflected from each of the targets. The orientation of the laser beam is adjusted until the laser beam traverses the center of the target at which point the width of the first reflective section equals the width of the second reflective section. A processor calculates the distance or angle in which to adjust the laser transmitter so that the laser beam traverses the center of the target once the laser beam traverses the portion of the target including the sloped non-reflective section.

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