Patents by Inventor Graham Harry Moss

Graham Harry Moss 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).

  • Light source
    Patent number: 7738177
    Abstract: A light source for use in a projection system comprises a pair of lamps each effective to produce a substantially collimated beam. Part of the light emitted by each lamp is directed through the light originating part of the same, or another, lamp. A light combiner is arranged within the path of the light beams from each of the two lamps to provide a composite light beam of a cross section less than the sum of the cross section of the beams produced by each of the lamps.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: June 15, 2010
    Assignee: Digital Projection Limited
    Inventor: Graham Harry Moss
  • Projection device comprising a prism system including at least one totally internally reflecting surface at a boundary between two members of different refractive indices within the prism system
    Patent number: 6663243
    Abstract: A projection device includes one or more deformable mirror arrays (803) arranged to spatially modulate incident light. A totally internally reflecting surface (809) is arranged to direct light to and from the deformable mirror array (803). The device may include one or more dichroic layers (805) arranged such that the light incident on each dichroic layer (805) is substantially normal incidence to the layer.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: December 16, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Raymond Gordon Fielding, Martin Kavanagh, Graham Harry Moss
  • Illumination system
    Patent number: 6341876
    Abstract: An illumination system for illuminating a spatial light modulator. An integrator rod is positioned in the light path between an arc lamp and the spatial light modulator. At the input surface of the integrated rod, there is positioned a field lens for defocusing areas of turbulence within the arc lamp. In the output surface of the integrated rod there is positioned a plate effective to prevent dust from being attracted to the output surface of the integrator rod. The integrator rod is effective to combine light from two separate light sources.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: January 29, 2002
    Assignee: Digital Projection Limited
    Inventors: Graham Harry Moss, Steven James Chapman
  • Projection device
    Publication number: 20010024268
    Abstract: A projection device includes one or more deformable mirror arrays (803) arranged to spatially modulate incident light. A totally internally reflecting surface (809) is arranged to direct light to and from the deformable mirror array (803). The device may include one or more dichroic layers (805) arranged such that the light incident on each dichroic layer (805) is substantially normal incidence to the layer.
    Type: Application
    Filed: May 17, 2001
    Publication date: September 27, 2001
    Inventors: Raymond Gordon Fielding, Martin Kavanagh, Graham Harry Moss
  • Projection device
    Patent number: 6250763
    Abstract: A projection device which includes a plurality of deflectable mirror arrays arranged to spatially modulate incident light. A totally internal reflecting surface is arranged to direct light to and from the deformable mirror array. The device includes on or more dichroic layers arranged at an angle relative to the incident light dependent on the spread of angles on the incident beam relative to the optical axis. Additionally or alternatively, the totally internally reflecting surface may be arranged to direct non-spatially modulated light towards a beam dump.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: June 26, 2001
    Assignee: Digital Projection Limited
    Inventors: Raymond Gordon Fielding, Martin Kavanagh, Graham Harry Moss
  • Projection system
    Patent number: 5865520
    Abstract: A projection system includes a light source (16) and a prism assembly (41) including at least one air gap (45) effective both to deflect incident light on to at least one reflective spatial light modulator (10), and to transmit modulated light produced by the spatial light modulator (10).
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: February 2, 1999
    Assignee: Digital Projection Limited
    Inventors: Martin Kavanagh, Raymond Gordon Fielding, Graham Harry Moss