Patents by Inventor Simon Kuppens

Simon Kuppens 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).

  • Multi-colored LED array with improved brightness profile and color uniformity
    Patent number: 7320531
    Abstract: A backlight uses an array of red, green, and blue LEDs in a mixing chamber. The mixing chamber has reflecting surfaces and a top opening for illuminating LCD layers. A desired brightness profile and better color uniformity are obtained by using techniques including arranging the LEDs in certain sequences and patterns, providing a specular ring at the base of each LED, attenuating the brightness of the LEDs at the edges, and using widely separated diffusers in the mixing chamber. The arrangement, selection, and control of the multicolored LEDs may be tailored to achieve any desired white point specified by the display manufacturer.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: January 22, 2008
    Assignee: Philips Lumileds Lighting Company, LLC
    Inventors: Robert S. West, Simon Kuppens, Charles Schrama, Yourii Martynov, Nicola Pfeffer, Huub Konijn
  • Multi-colored LED array with improved brightness profile and color uniformity
    Publication number: 20050001537
    Abstract: A backlight uses an array of red, green, and blue LEDs in a mixing chamber. The mixing chamber has reflecting surfaces and a top opening for illuminating LCD layers. A desired brightness profile and better color uniformity are obtained by using techniques including arranging the LEDs in certain sequences and patterns, providing a specular ring at the base of each LED, attenuating the brightness of the LEDs at the edges, and using widely separated diffusers in the mixing chamber. The arrangement, selection, and control of the multicolored LEDs may be tailored to achieve any desired white point specified by the display manufacturer.
    Type: Application
    Filed: May 7, 2004
    Publication date: January 6, 2005
    Inventors: Robert West, Simon Kuppens, Charles Schrama, Yourii Martynov, Nicola Pfeffer, Huub Konijn
  • LED bulb
    Patent number: D854714
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: July 23, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Simon Kuppens, Genevieve Martin, Liesbet Wind