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System for capturing an image of the retina for identification

  • US 20020093645A1
  • Filed: 10/23/2001
  • Published: 07/18/2002
  • Est. Priority Date: 11/02/2000
  • Status: Active Grant
First Claim
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1. A system for capturing an image of a retina of an eye for identification comprising:

  • a source of illumination light;

    a lens through which the illumination light passes to illuminate the retina, the lens receiving light reflected from the retina;

    an image signal generator responsive to light reflected from the retina to generate a signal representing an image of an illuminated area of the retina; and

    an alignment system including an ultrasound transducer, the system being responsive to the transducer to determine when the eye is a predetermined distance from the image capturing system and providing an indication to the user when the eye is at the predetermined distance.

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