Importance

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Abstract

An adjustable adjustable color illumination source comprises: a first color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a first color with at least three different selectable intensity levels not including zero intensity; a second color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a second color with at least three different selectable intensity levels not including zero intensity; a third color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a third color with at least three different selectable intensity levels not including zero intensity; the first, second, and third color channels arranged such that the illumination of the first, second, and third colors combine to generate a source illumination; and a controller communicating with the first, second, and third color channels to selectively switch on or off the sub-channels of the first, second, and third color channels to adjust the source illumination to a selected one of at least sixty four different colors. light source comprises a light source having input channels for generating illumination of different channel colors, and an electrical power supply selectively energizing the input channels in a time division multiplexed fashion to generate a illumination of a selected color.

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First Claim