Patents by Inventor Nicolas Pitaval

Nicolas Pitaval 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).

  • Device for displaying images by projection, comprising dichroic filters with a gradient
    Patent number: 6956551
    Abstract: Device comprising: matrices of reflecting elements which can be electrically driven, and means for deconstructing a beam of polychromatic light and means for reconstructing complementary reflected beams, comprising two dichroic filters with a gradient where, for at least one of these filters, the direction of the gradient HOG, H?OG? makes an angle of inclination of non-zero gradient ?, ?? with a plane (DOE, D?OE?) orthogonal to the reflecting surfaces of the matrices. By virtue of the inclination of the gradient, the chromatic performance of the device is substantially improved.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: October 18, 2005
    Assignee: Thomson Licensing
    Inventors: Jean-Jacques Sacre, Nicolas Pitaval
  • Device for displaying images by projection, comprising dichroic filters with a gradient
    Publication number: 20030030649
    Abstract: Device comprising:
    Type: Application
    Filed: July 25, 2002
    Publication date: February 13, 2003
    Inventors: Jean-Jacques Sacre, Nicolas Pitaval