Patents by Inventor Peter Zagar

Peter Zagar 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).

  • Solid-state, color-balanced backlight with wide illumination range
    Patent number: 7557518
    Abstract: A color balanced solid-state backlight provides feedback control of each color using a single photodetector by imposing a modulation pattern on the solid-state lamps revealing individual colors to the photodetector. The photodetector signal provides feedback controlling color balance over a small range of instantaneous brightness less than larger range of average brightness of the display to provide for accurate color balance throughout a large range of average brightnesses.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: July 7, 2009
    Assignee: Astronautics Corporation of America
    Inventors: Peter A. Zagar, Frederick C. Ellner, Hans C. Hansen
  • Night vision compatible display backlight
    Patent number: 7525611
    Abstract: A system and method of backlighting a display using LEDs is night vision viewing compatible and requires no filters. The backlight includes an array of LEDs and a controller configured to selectively illuminate the LEDs in the array. The array of LEDs includes orange LEDs that are illuminated during a night vision viewing mode and may include red LEDs that are illuminated in a non-night vision viewing mode.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: April 28, 2009
    Assignee: Astronautics Corporation of America
    Inventors: Peter A. Zagar, Thaddeus Raymond Ulijasz
  • Night vision compatible display backlight
    Publication number: 20070171623
    Abstract: A system and method of backlighting a display using LEDs is night vision viewing compatible and requires no filters. The backlight includes an array of LEDs and a controller configured to selectively illuminate the LEDs in the array. The array of LEDs includes orange LEDs that are illuminated during a night vision viewing mode and may include red LEDs that are illuminated in a non-night vision viewing mode.
    Type: Application
    Filed: January 24, 2006
    Publication date: July 26, 2007
    Inventors: Peter Zagar, Thaddeus Ulijasz
  • Solid-state, color-balanced backlight with wide illumination range
    Publication number: 20070171670
    Abstract: A color balanced solid-state backlight provides feedback control of each color using a single photodetector by imposing a modulation pattern on the solid-state lamps revealing individual colors to the photodetector. The photodetector signal provides feedback controlling color balance over a small range of instantaneous brightness less than larger range of average brightness of the display to provide for accurate color balance throughout a large range of average brightnesses.
    Type: Application
    Filed: January 24, 2006
    Publication date: July 26, 2007
    Inventors: Peter Zagar, Frederick Ellner, Hans Hansen