Patents Examined by Bertrand Zeaade
  • Polarization sensitive optical substrate
    Patent number: 6811274
    Abstract: A polarization sensitive optical substrate comprises a planar surface and a first thin film applied to the planar surface. The first film has a thickness of &lgr;/4/h, where &lgr; is the wavelength of light incident upon the first film and n is the refractive index of the first film. A prismatic surface is optionally also thin film coated, and is in opposition to the planar surface.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: November 2, 2004
    Assignee: General Electric Company
    Inventor: Eugene Olczak