Patents by Inventor Pasi VALLEVUORI

Pasi VALLEVUORI 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).

  • Light guide
    Patent number: 8979321
    Abstract: A light guide (201) including a transparent element is presented. The transparent element includes an optical diverter section (204) including one or more reflective surfaces (205) forming walls of a notch (206) extending into the diverter section, where the reflective surfaces provide total reflections for directing light into directions lateral with respect to an arrival direction of the light. The transparent element includes an optical channel section (208) for receiving the light from a light source and for directing the light to the optical diverter section. The optical channel section includes a side surface (209) shaped to provide total reflections for directing light to the optical diverter section. The optical channel section makes it possible to place the light source a distance apart from the optical diverter section and also to prevent or at least to reduce direct propagation of light from the light source to the lateral directions.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: March 17, 2015
    Assignee: Ledil Oy
    Inventors: Hannu Hukkanen, Pasi Vallevuori
  • LIGHT GUIDE
    Publication number: 20140247592
    Abstract: A light guide (201) including a transparent element is presented. The transparent element includes an optical diverter section (204) including one or more reflective surfaces (205) forming walls of a notch (206) extending into the diverter section, where the reflective surfaces provide total reflections for directing light into directions lateral with respect to an arrival direction of the light. The transparent element includes an optical channel section (208) for receiving the light from a light source and for directing the light to the optical diverter section. The optical channel section includes a side surface (209) shaped to provide total reflections for directing light to the optical diverter section. The optical channel section makes it possible to place the light source a distance apart from the optical diverter section and also to prevent or at least to reduce direct propagation of light from the light source to the lateral directions.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 4, 2014
    Applicant: LEDIL OY
    Inventors: Hannu HUKKANEN, Pasi VALLEVUORI
  • Light guide for modifying light distribution patterns of a light source
    Patent number: D822887
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: July 10, 2018
    Assignee: LEDIL Oy
    Inventors: Jussi Laakkio, Olli-Pekka Laakkio, Pasi Vallevuori