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Light source and method for optimising illumination characteristics thereof

  • US 7,772,787 B2
  • Filed: 07/12/2007
  • Issued: 08/10/2010
  • Est. Priority Date: 07/13/2006
  • Status: Active Grant
First Claim
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1. A light source, comprising:

  • four or more light-emitting elements, each one of which having a respective emission spectrum;

    a selection module for selecting one or more illumination characteristics for which the light source is to be optimised;

    a computing module for computing, from values indicative of each said respective emission spectrum, optimised drive parameters for driving the light source to substantially attain said selected one or more illumination characteristics;

    said selection module being configured to associate a respective optimisation weight to two or more of said illumination characteristics, wherein each said respective optimisation weight is used by said computing module when computing said optimised drive parameters; and

    a driving module for driving each of said four or more light-emitting elements in accordance with said optimised drive parameters.

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