Patents by Inventor Per Ambrosiussen

Per Ambrosiussen 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).

  • Patent number: 8314569
    Abstract: A lighting system (100) includes light sources (110, 115, 120) and a light wand (250) configured to control the light sources in response to user input. The light wand (250) is configured to copy a light attribute of a first light provided from a first light source, and paste the copied light attribute into a second light source so that the second light source provides a second light having the light attribute of the first light.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: November 20, 2012
    Assignee: Koninklijke Philips Electronic N.V.
    Inventors: Tony Adamson, Erik Nieuwlands, Kumar Arulandu, Per Ambrosiussen
  • Publication number: 20100090619
    Abstract: A lighting system (100) includes light sources (110, 115, 120) and a light wand (250) configured to control the light sources in response to user input. The light wand (250) is configured to copy a light attribute of a first light provided from a first light source, and paste the copied light attribute into a second light source so that the second light source provides a second light having the light attribute of the first light.
    Type: Application
    Filed: November 8, 2007
    Publication date: April 15, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Tony Adamson, Erik Nieuwlands, Kumar Arulandu, Per Ambrosiussen
  • Publication number: 20080297066
    Abstract: The present invention relates to a method for controlling an illumination device (100), the illumination device (100) comprising a flux sensing unit (101) and at least two differently colored light sources (102, 103, 104), the method comprising the steps of switching on and off each of the light sources according to a predefined pattern, acquiring measurement values by means of the flux sensing unit at predetermined intervals in accordance with the predefined pattern, calculating a color point for each of the light sources based on the measurement values, calculating a difference between the color points and corresponding reference color points, and adjusting an analog current drive level of the light sources, wherein the difference is minimized such that a desired color is obtained. The present invention provides for the possibilities to in a more accurate way correct for the color changes due to change in drive current, temperature, and aging effects.
    Type: Application
    Filed: December 7, 2006
    Publication date: December 4, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Eduard Johannes Meijer, Christoph Martiny, Volkmar Schulz, Matthias Wendt, Per Ambrosiussen