Patents Represented by Attorney James De Vellis
  • Patent number: 7687753
    Abstract: The present invention provides an illumination system enabling dynamic color control of the illumination produced by the system. The illumination system comprises light-emitting elements for producing illumination, and at least one detecting device which collects information relating to the illumination, which is inherently non-linear. The illumination system also integrates a computing system which receives, the information from the at least one detecting device and linearises this information using a multivariate function having a solution defining a hyperplane representing constant chromaticity for a given luminous intensity, and then determines a number of control parameters based on the information.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: March 30, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Ian Ashdown