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Lighting unit for vehicle headlamp including convex lens arranged between light source and shade

  • US 7,878,695 B2
  • Filed: 05/16/2008
  • Issued: 02/01/2011
  • Est. Priority Date: 05/17/2007
  • Status: Active Grant
First Claim
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1. A lighting unit for a vehicle headlamp, comprising:

  • a projection lens arranged on an optical axis extending in a longitudinal direction of a vehicle;

    a light source arranged on a rear side of a rear side focal point of the projection lens;

    a reflector configured to reflect forward a light from the light source toward the optical axis;

    a shade arranged such that an upper end edge of the shade passes through a vicinity of the rear side focal point and configured to shield a part of a reflected light from the reflector; and

    a convex lens arranged between the light source and the shade and configured to converge the light from the light source into the vicinity of the upper end edge of the shade;

    wherein the reflector is arranged to cover the light source and the convex lens from a top side, andan additional reflector configured to reflect the light from the light source to the convex lens and arranged below the light source.

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