×

Optical attachment for a light-emitting diode and brake light for a motor vehicle

  • US 6,536,923 B1
  • Filed: 12/17/1999
  • Issued: 03/25/2003
  • Est. Priority Date: 07/01/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. An optical attachment for a light source, the light source having a focal point, the optical attachment having a center and an optical axis, the optical axis passing though the focal point and the center, the optical attachment comprising:

  • an azimuthally asymmetric inner lens for inner light beams emitted by the light source, said inner lens containing the center and surrounding the optical axis; and

    an azimuthally asymmetric outer reflector for outer light beams from the light source, said outer reflector surrounding said inner lens in a ring-like manner, wherein said inner lens and said outer reflector are formed by mutually adjacent individual angular sectors distributed azimuthally about said optical axis with each angular sector having a substantially constant axial cross-section in a plane passing though said angular sector and containing the optical axis, wherein axial cross-sections of separate angular sectors differ by a scaling with respect to the focal point of the optical attachment in dependence on a radial extension of a respective angular sector.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×