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Iris recognition apparatus and method

  • US 5,956,122 A
  • Filed: 06/26/1998
  • Issued: 09/21/1999
  • Est. Priority Date: 06/26/1998
  • Status: Expired due to Term
First Claim
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1. A method of determining a direction to a human iris in a field of view, said method comprising steps of:

  • beaming light into the field of view;

    causing the beamed light to be at least in part received into an eye of the human in the field of view, to be reflected from the retina, and back toward the light source via the pupil of the eye;

    detecting the part of the beamed light which is reflected from the retina; and

    determining a direction for the iris surrounding the pupil of the eye in the field of view by reference to the direction of the reflected light.

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