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Motor vehicle light assembly utilizing total internal reflection

  • US 3,969,621 A
  • Filed: 11/18/1974
  • Issued: 07/13/1976
  • Est. Priority Date: 11/18/1974
  • Status: Expired due to Term
First Claim
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1. A light assembly for a motor vehicle, said light assembly being designed to project light both in the longitudinal direction of said motor vehicle and in a direction transverse to said motor vehicle, said light assembly comprising:

  • a light source;

    a parabolic reflector, said light source being positioned at the focal point of said parabolic reflector and said parabolic reflector defining a general direction of light projection;

    a lens made from a transparent material, said lens having a plane surface and a surface having a plurality of optics, said lens surface having a plurality of optics including certain portions interspersed among said optics, said surface portions being flat and parallel to said plane surface of said lens, thereby, to permit light rays entering said lens at said surface portions to be transmitted through said lens, said optics being of a type capable of producing total internal reflection of light rays entering said lens from the direction of said parabolic reflector and said light source, and said optics projecting said totally internally reflected light rays in a direction substantially transverse to said general direction.

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