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Title: Multi-dimensional position sensor using range detectors

A small, non-contact optical sensor uses ranges and images to detect its relative position to an object in up to six degrees of freedom. The sensor has three light emitting range detectors which illuminate a target and can be used to determine distance and two tilt angles. A camera located between the three range detectors senses the three remaining degrees of freedom, two translations and one rotation. Various range detectors, with different light sources, e.g. lasers and LEDs, different collection options, and different detection schemes, e.g. diminishing return and time of flight can be used. This sensor increases the capability and flexibility of computer controlled machines, e.g. it can instruct a robot how to adjust automatically to different positions and orientations of a part.
Inventors:
 [1]
  1. (Fremont, CA)
Issue Date:
OSTI Identifier:
873225
Assignee:
Regents of Univerity of California (Oakland, CA) LLNL
Patent Number(s):
US 6115128
Contract Number:
W-7405-ENG-48
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
Language:
English
Subject:
multi-dimensional; position; sensor; range; detectors; non-contact; optical; ranges; images; detect; relative; six; degrees; freedom; light; emitting; illuminate; target; determine; distance; tilt; angles; camera; located; senses; remaining; translations; rotation; various; sources; lasers; leds; collection; options; detection; schemes; diminishing; return; time; flight; increases; capability; flexibility; computer; controlled; machines; instruct; robot; adjust; automatically; positions; orientations; relative position; position sensor; six degrees; computer controlled; light source; light sources; light emitting; computer control; optical sensor; range detectors; controlled machine; sensor increases; non-contact optical; tilt angles; six degree; controlled machines; /356/250/