Patents by Inventor Guido Henri Maria Van Tartwijk

Guido Henri Maria Van Tartwijk 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).

  • Display device with solid state fluorescent material
    Patent number: 7939996
    Abstract: A display device (100) comprising a plurality of lighting units (101), each lighting unit comprising at least one light emitting diode (202) being provided with a fluorescent element (203) arranged to absorb at least part of the light emitted by said light emitting diode and emit light of a wavelength range different from that of the absorbed light is provided. The fluorescent element (203) comprises at least one phosphor being an europium(II)-activated halogeno-oxonitridosilicate of the general formula EaxSiyN2/3x+4/3y:EuzOaXb.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: May 10, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Klemens Brunner, Aldegonda Lucia Weijers, Hans-Peter Stormberg, Guido Henri Maria Van Tartwijk, Jean Paul Jacobs, Hans-Helmut Bechtel, Egbert Lenderink, Lingli Wang, Marco Van As, Erik Boonekamp, Martinus Petrus Joseph Peeters, Oscar Arturo Chao Pujol, Martijn Henri Richard Lankhorst, Teunis Willem Tukker, Cornelis Jojakim Jalink, Peter Alexander Duine
  • Display Device with Solid State Fluorescent Material
    Publication number: 20080303407
    Abstract: A display device (100) comprising a plurality of lighting units (101), each lighting unit comprising at least one light emitting diode (202) being provided with a fluorescent element (203) arranged to absorb at least part of the light emitted by said light emitting diode and emit light of a wavelength range different from that of the absorbed light is provided. The fluorescent element (203) comprises at least one phosphor being an europium(II)-activated halogeno-oxonitridosilicate of the general formula EaxSiyN2/3x+4/3y:EuzOaXb.
    Type: Application
    Filed: November 14, 2006
    Publication date: December 11, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Klemens Brunner, Aldegonda Lucia Weijers, Hans-Peter Stormberg, Guido Henri Maria Van Tartwijk, Jean Paul Jacobs, Hans-Helmut Bechtel, Egbert Lenderink, Lingli Wang, Marco Van As, Erik Boonekamp, Martinus Petrus Joseph Peeters, Oscar Arturo Chao Pujol, Martijn Henri Richard Lankhorst, Teunis Willem Tukker, Cornelis Jojakim Jalink, Peter Alexander Duine
  • Variable Color Light Emitting Device and Method for Controlling the Same
    Publication number: 20080272712
    Abstract: The present invention relates to a variable color light emitting device (10) comprising a light emitting diode (12) for emitting light, which diode in turn comprises a plurality of electrically conducting layers (14, 16, 18), at least one of which being such that lateral current spreading in the diode is limited to form at least two independently electrically addressable segments (36), for allowing illumination of an optional number of the segments. At least one of the number of segments is provided with a wavelength converter (34) adapted to convert at least part of the light emitted from its associated segment to generate light of a certain primary color. The invention also relates to systems incorporating at least one such light emitting device and a method for controlling such a light emitting device.
    Type: Application
    Filed: September 12, 2006
    Publication date: November 6, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Cornelis Jojakim Jalink, Guido Henri Maria Van Tartwijk, Christoph Gerard August Hoelen