Patents by Inventor Seppo Kalevi HONKANEN

Seppo Kalevi HONKANEN 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).

  • Avoiding interference by reducing spatial coherence in a near-eye display
    Patent number: 10025170
    Abstract: Disclosed are an apparatus and method for reducing interference for a near-eye display device. The near-eye display device includes an imager, a spatial light modulator and a waveguide. The imager generates an image based on light from a coherent light source. The spatial light modulator modulates phases of a plurality of coherent light rays representing the image received from the imager. The waveguide receives and guides the light rays having varied phases such that light rays propagating within the waveguide are incoherent with each other.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: July 17, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jani Kari Tapio Tervo, Tuomas Heikki Sakari Vallius, Seppo Kalevi Honkanen
  • Avoiding Interference by Reducing Spatial Coherence in a Near-Eye Display
    Publication number: 20170357101
    Abstract: Disclosed are an apparatus and method for reducing interference for a near-eye display device. The near-eye display device includes an imager, a spatial light modulator and a waveguide. The imager generates an image based on light from a coherent light source. The spatial light modulator modulates phases of a plurality of coherent light rays representing the image received from the imager. The waveguide receives and guides the light rays having varied phases such that light rays propagating within the waveguide are incoherent with each other.
    Type: Application
    Filed: June 13, 2016
    Publication date: December 14, 2017
    Inventors: Jani Kari Tapio TERVO, Tuomas Heikki Sakari VALLIUS, Seppo Kalevi HONKANEN