Patent ID: 8193737

Claim:
A color manager for use with a luminaire constituted of a plurality of different colored light emitting diode based sub-luminaires, the sub-luminaires arranged to produce a combined light, the color manager comprising: a sampler arranged to output an electrical representation of the optical output of the luminaire; a converter coupled to the output of said sampler and operatively associated with a current selector, the current selector arranged to select the driving current level of the luminaire from a plurality of selectable current levels, said converter comprising a plurality of calibration matrixes each associated with a particular one of the selectable driving current levels, said converter arranged to select the calibration matrix associated with the selected driving current level and to convert said electrical representation to a pre-determined colorimetric system in cooperation with said selected calibration matrix; and a driver operatively associated with the luminaire, the converter and the current selector, said driver arranged to drive the luminaire in accordance with the driving current level as selected by the current selector.