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Decorative illumination device

  • US 20060109137A1
  • Filed: 01/10/2006
  • Published: 05/25/2006
  • Est. Priority Date: 04/14/2003
  • Status: Active Grant
First Claim
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1. An color tunable illumination device, comprising:

  • a substrate including at a first light emitting diode (LED), a second LED, and a third LED, each of the first, second, and third LEDs emitting light at a different wavelength than either of the other LEDs; and

    an integrated circuit LED driver being electrically responsive to a data signal, a clock signal, and a power signal for driving the first, second, and third LEDs, the integrated circuit LED driver comprising;

    a plurality of pulse width modulation registers selectable in combination to drive the first LED, second LED, and third LED independent of one another to a blink rate and an intensity to control the color produced by the combination of the LEDs; and

    an electronically programmed address circuit for storing an address therein, the integrated circuit LED driver being responsive to the data signal upon receiving a corresponding address from the command controller; and

    an optical diffuser enclosing at least a portion of the first, second, and third LEDs.

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