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Systems, devices, and methods for laser eye tracking

  • US 9,904,051 B2
  • Filed: 10/21/2016
  • Issued: 02/27/2018
  • Est. Priority Date: 10/23/2015
  • Status: Active Grant
First Claim
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1. A method of determining a gaze direction of a user, the method comprising:

  • scanning a laser light over at least a portion of an eye of the user by a scanning laser device, wherein the portion of the eye of the user includes at least a portion of a cornea of the eye of the user;

    detecting reflections of the laser light from the eye by at least one photodetector;

    determining a relative intensity of each reflection by a processor;

    identifying, by the processor, at least one region of the eye that corresponds to a relatively low-intensity reflection;

    determining, by the processor, a position of the cornea based on the at least one region of the eye that corresponds to the relatively low-intensity reflection; and

    determining, by the processor, the gaze direction of the user based on the position of the cornea.

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