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Prism light guide having surfaces which are in octature

  • US 4,260,220 A
  • Filed: 06/15/1979
  • Issued: 04/07/1981
  • Est. Priority Date: 06/15/1979
  • Status: Expired due to Term
First Claim
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1. A light guide comprising a longitudinal hollow structure made of transparent dielectric material, said structure having substantially planar inner and outer surfaces which are in octature.

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