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Artificial retina device

  • US 5,024,223 A
  • Filed: 07/06/1990
  • Issued: 06/18/1991
  • Est. Priority Date: 08/08/1989
  • Status: Expired due to Term
First Claim
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1. An artificial retina device, comprising:

  • a plurality of discrete photodiodes, disposed on one surface of a substrate said photodiodes each including an active electrode layer overlaying a photosensitive layer, each photodiode being connected to an electrical ground, wherein said active electrode layer and ground are made from materials selected from aluminum, platinum, chromium, gold, conductive silicon, or combinations thereof, said photodiodes having electrical outputs that correspond to the amplitude of light incident on said device, whereby said device can stimulate individual or small groups of cells in the inner retinal layer of the eye, corresponding to the light incident on said device.

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