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Silver halide optical information storage media

  • US 4,239,338 A
  • Filed: 10/22/1979
  • Issued: 12/16/1980
  • Est. Priority Date: 10/22/1979
  • Status: Expired due to Term
First Claim
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1. A visibly absorbing, optically bleachable inorganic film comprising multiple polycrystalline silver chloride layers containing crystals of additively colored silver chloride, having a thickness not exceeding about 2 microns, which exhibits, in the optically unbleached state, a light transmittance at 6300 A not exceeding about 0.3 and a light transmittance at 8500 A of at least about 0.5.

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