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Position tracking system

  • US 6,043,873 A
  • Filed: 01/10/1997
  • Issued: 03/28/2000
  • Est. Priority Date: 01/10/1997
  • Status: Expired due to Term
First Claim
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1. An optical position tracking system for determining the position of an object, comprising:

  • a reflector affixed to the object;

    a light source;

    a light detector having a detection surface, a mask positioned a predetermined distance from said detection surface, and a baffle positioned in a region between said mask and said detection surface, said baffle partitioning said region into sections, said light detector generating signals representative of light incident on said detection surface.

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