Patents Assigned to Richmond Holographic Research Limited
  • Holographic optical element
    Patent number: 6233071
    Abstract: A holographic optical element comprising at least two sets of regions, the regions of each set being different from the regions of the other set(s) and being interleaved or overlapping with the regions of the other set(s) and being constructed such that light incident on each set of regions is directed to a respective one of a plurality of viewing zones. The holographic optical element is typically incorporated in a display device such as a stereoscopic display device.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: May 15, 2001
    Assignee: Richmond Holographic Research Limited
    Inventors: Edwina Margaret Orr, David John Trayner
  • Holographic optical element
    Patent number: 6157474
    Abstract: A display device with a holographic diffuser which has at least first and second adjacent sets of holographic regions which overlap each other and wherein the first and second holographic regions diffract and direct light to respective first and second sets of imaging elements of a lcd to displays an image.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: December 5, 2000
    Assignee: Richmond Holographic Research Limited
    Inventors: Edwina Margaret Orr, David John Trayner