Patents by Inventor Ville Häyrinen

Ville Häyrinen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for coupling light sources to a light guide
    Patent number: 6698907
    Abstract: A method for coupling several non-radial light sources to a light guide having an input end, where the light guide has, in a cross-section perpendicular to the direction of propagation of light, an at least partly curved form, and the light sources are coupled on the edge region at the input end of the light guide.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: March 2, 2004
    Assignee: Oseir Oy
    Inventors: Taito Alahautala, Pekka Savolainen, Ville Häyrinen