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Multi-function headlamp for a motor vehicle, adapted to improve the illumination of road signs

  • US 5,251,110 A
  • Filed: 06/28/1991
  • Issued: 10/05/1993
  • Est. Priority Date: 07/03/1990
  • Status: Expired due to Fees
First Claim
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1. A multi-function headlamp for a motor vehicle comprising:

  • a reflector;

    lamp means constituting a light source and disposed within the reflector, and adapted for emitting visible light and ultra violet radiation simultaneously, the lamp means defining an optical axis;

    occulting means associated with the lamp means for defining a cut-off line whereby to produce a dipped beam;

    a front closure lens, made of a material which is at least partially transparent to ultra violet radiation and overlying an open front of the reflector, the occulting means being opaque to visible light radiation but at least partially transparent to ultra violet radiation, and the multi-function headlamp further including means mounting the occulting means for displacement of the occulting means between an occulting position in which it intercepts all visible radiation directed above the cut-off line of the beam defined by the occulting means, and a retracted position in which the transmission of visible light radiation is substantially unaffected by the occulting means, wherein the reflector has a height and comprises a first reflecting zone and a second reflecting zone, for generating two respective different light beams, said first and second reflecting zones being disposed side by side and each extending over the whole height of the reflector, with each of said first and second reflecting zones comprising a part of a reflecting surface which of itself generates an associated beam, and wherein the said occulting means comprise at least one screen which, in the said occulting position, is situated laterally of the said lamp means.

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