Patents by Inventor Evan COONS

Evan COONS 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).

  • Head mounted projection display with multilayer beam splitter and color correction
    Patent number: 10139644
    Abstract: A head mounted projection display includes a polarizing beam splitter stack that includes a waveplate. The polarizing beam splitter stack reduces optical losses and has a low forward extension. The polarizing beam splitter may be used at a 45 degree angle or at a non 45 degree angle relative to the line of view. A correction may be also be performed to the intensity of individual pixels to account for chromatic non-uniformity in the optical response of a retroreflector and other optical components.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: November 27, 2018
    Inventors: Wei Rong, Evan Coons, Jeri J. Ellsworth, Ken Clements
  • HEAD MOUNTED PROJECTION DISPLAY WITH MULTILAYER BEAM SPLITTER AND COLOR CORRECTION
    Publication number: 20180004002
    Abstract: A head mounted projection display includes a polarizing beam splitter stack that includes a waveplate. The polarizing beam splitter stack reduces optical losses and has a low forward extension. The polarizing beam splitter may be used at a 45 degree angle or at a non 45 degree angle relative to the line of view. A correction may be also be performed to the intensity of individual pixels to account for chromatic non-uniformity in the optical response of a retroreflector and other optical components.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Wei RONG, Evan COONS, Jeri J. ELLSWORTH, Ken CLEMENTS