Patents Assigned to Karl Zizala Metallwarenfabrik
  • Vehicle lighting device
    Patent number: 4811174
    Abstract: The invention is directed to a vehicle headlight including a projection lens secured by a covering disk. No diaphragm is interposed between light source and the projection lens. The lens having the shape of a flat sector of a cylinder with a cut-off apex. An inner lens surface having a uniform curvature and an outer lens surface having a toroidal curvature.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: March 7, 1989
    Assignee: Karl Zizala Metallwarenfabrik
    Inventors: Josef Kanzler, Alois Noisser, Gerald Bachtrod, Ernst Gugerell