Virtual retinal display with eye tracking

  • US 6,560,028 B2
  • Filed: 02/15/2002
  • Issued: 05/06/2003
  • Est. Priority Date: 01/20/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for authorizing a user access to a computer system, comprising:

  • an image source for generating light;

    a lensing system having an input aligned to the image source for receiving the generated light, the lensing system having an output adapted for transmitting light to a viewer'"'"'s eye, the lensing system defining an optical path from the input to the output, the lensing system comprising a variably transmissive eyepiece which maintains contrast between the transmitted light and an ambient lighting;

    a detector which generates a signal responsive to light reflected from the viewer'"'"'s eye; and

    a processor receiving the signal and generating a map of the viewer'"'"'s eye based upon the signal, the processor comparing the generated map to a stored map to identify a set of access privileges corresponding to the viewer enabling the viewer to access a computer system.

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