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Illumination apparatus using light guide

  • US 6,333,779 B1
  • Filed: 12/21/1999
  • Issued: 12/25/2001
  • Est. Priority Date: 12/24/1998
  • Status: Expired due to Term
First Claim
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1. A light guide built in a light guide cover, said light guide cover comprising a light non-transmitting member, and provided with a light transmitting member for guiding light from a light source in a longitudinal direction and radiating the light from a radiating surface of said light guide to illuminate an object to be illuminated,wherein a light leakage preventing portion for restricting light leakage is arranged in a part of a surface of said light guide, exposed from said light guide cover, other than said radiating surface.

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