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Color management methods and apparatus for lighting devices

  • US 7,710,369 B2
  • Filed: 12/20/2005
  • Issued: 05/04/2010
  • Est. Priority Date: 12/20/2004
  • Status: Active Grant
First Claim
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1. A color-managed illumination system, comprising:

  • at least one lighting unit comprising;

    at least one first LED configured to generate first light having a first spectrum;

    at least one second LED configured to generate second light having a second spectrum different from the first spectrum; and

    at least one controller configured to control the first light and the second light so as to generate from the at least one lighting unit a range of colors or color temperatures of perceived light;

    at least one target color management profile associated with the at least one lighting unit, the at least one target color management profile representing a first mapping from a working color space for the color-managed illumination system to a lighting unit color gamut that specifies the range of colors or color temperatures of the perceived light that can generated by the at least one lighting unit;

    at least one color engine to provide at least one lighting command to the at least one controller, based on a desired color specified in the working color space and the at least one target color management profile, so as to generate a single color of the perceived light, wherein the at least one lighting unit is configured to provide ambient illumination that includes the single color of the perceived light at a given time, the single color of the perceived light corresponding to the desired color specified in the working color space; and

    at least one color library coupled to the at least one color engine to store the desired color specified in the working color space, wherein the at least one color library is configured to store a plurality of color samples each specified in the working color space, and wherein the system further includes at least one user interface configured to facilitate a selection of the desired color from the plurality of color samples.

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