Patents by Inventor Randolph J. Turner

Randolph J. Turner 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).

  • Method of ghost reduction and transmission enhancement for a real image projection system
    Patent number: 6733140
    Abstract: A real image projection system includes at least one curved reflector, positioned in a tilted configuration, wherein an optical axis of the reflector is not coincident with a viewing axis, and a beampath between a target source and the curved reflector neither passes through nor reflects off of a beamsplitter.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: May 11, 2004
    Assignee: Optical Products Development Corp.
    Inventors: Kenneth S. Westort, Douglas L. Robinson, Randolph J. Turner
  • SEMI-TRANSPARENT GRAPHIC WINDOW FOR A REAL IMAGING SYSTEM
    Publication number: 20030214711
    Abstract: A photo-screen device for a real image projection system includes a transparent or semi-transparent material having a fixed or static image applied to the surface thereof, wherein the photo-screen is positioned so as to intersect a real image beampath of the real image projection device. In an alternative embodiment, a method for producing a photo-screen device for a real image projection system includes the steps of printing colors thereon in reverse order and positioning the photo-screen such that the non-printed side faces a viewer of the real image.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 20, 2003
    Inventors: Randolph J. Turner, Douglas L. Robinson, Kenneth S. Westort
  • Semi-transparent graphic window for a real imaging system
    Patent number: 6650470
    Abstract: A photo-screen device for a real image projection system includes a transparent or semi-transparent material having a fixed or static image applied to the surface thereof, wherein the photo-screen is positioned so as to intersect a real image beampath of the real image projection device. In an alternative embodiment, a method for producing a photo-screen device for a real image projection system includes the steps of printing colors thereon in reverse order and positioning the photo-screen such that the non-printed side faces a viewer of the real image.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: November 18, 2003
    Assignee: Optical Products Development Corp.
    Inventors: Randolph J. Turner, Douglas L. Robinson, Kenneth S. Westort
  • Method of ghost reduction and transmission enhancement for a real image projection system
    Publication number: 20030197839
    Abstract: A real image projection system includes at least one curved reflector, positioned in a tilted configuration, wherein an optical axis of the reflector is not coincident with a viewing axis, and a beampath between a target source and the curved reflector neither passes through nor reflects off of a beamsplitter.
    Type: Application
    Filed: April 19, 2002
    Publication date: October 23, 2003
    Inventors: Douglas L. Robinson, Kenneth S. Westort, Randolph J. Turner
  • Image enhancement in a real image projection system, using on-axis reflectors, at least one of which is aspheric in shape
    Patent number: 6612701
    Abstract: A real image projection system comprising two or more optical surfaces of revolution, with at least one comprising an aspheric surface of revolution. The aspheric surface of revolution is of a design to reduce natural aberrations inherent in imaging using surface of revolutions of the conic family of curves.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: September 2, 2003
    Assignee: Optical Products Development Corporation
    Inventors: Kenneth S. Westort, Douglas L. Robinson, Randolph J. Turner
  • IMAGE ENHANCEMENT IN A REAL IMAGE PROJECTION SYSTEM, USING ON-AXIS REFLECTORS, AT LEAST ONE OF WHICH IS ASPHERIC IN SHAPE
    Publication number: 20030035085
    Abstract: A real image projection system comprising two or more optical surfaces of revolution, with at least one comprising an aspheric surface of revolution. The aspheric surface of revolution is of a design to reduce natural aberrations inherent in imaging using surface of revolutions of the conic family of curves.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 20, 2003
    Inventors: Kenneth S. Westort, Dauglas L. Robinson, Randolph J. Turner