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SYSTEMS AND METHODS FOR EYE TRACKING USING RETROREFLECTOR-ENCODED INFORMATION

  • US 20130094712A1
  • Filed: 07/16/2010
  • Published: 04/18/2013
  • Est. Priority Date: 07/16/2010
  • Status: Abandoned Application
First Claim
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1. An eye tracking system (200) comprising:

  • a light source (204) configured to emit infrared (“

    IR”

    ) light;

    an optical sensor (206) disposed adjacent to the light source and configured to detect IR light; and

    one or more retroreflectors (210) disposed on headgear, wherein the one or more retroreflectors are configured to reflect the IR light back toward the light source, and wherein the reflected IR light is captured as IR images by the optical sensor, the IR images provide information regarding the location and head orientation of a person wearing the headgear.

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