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Microcontroller-controlled multi-color LED apparatus

  • US 7,607,797 B2
  • Filed: 01/06/2006
  • Issued: 10/27/2009
  • Est. Priority Date: 01/06/2005
  • Status: Expired due to Fees
First Claim
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1. A lighting object for providing a plurality of light shows to an observer, comprising:

  • at least three LEDs, including red, green and blue LEDs;

    a microcontroller;

    the LEDs being linked to the microcontroller by circuitry;

    the microcontroller being programmed to independently control the intensity levels of each of the LEDs to vary colors perceived by the observer during the plurality of light shows;

    a memory linked to the microcontroller, the plurality of light shows being stored in the memory, the plurality of light shows each comprising starting and target points corresponding to starting and target intensity levels for each of the LEDs with a segment extending continuously between the starting and target points and timing information for a duration of the segment to present a continuous change in color during the segment, each starting and target points and each segment extending therebetween falling within an area of a CIE 1931 Color Diagram defined by the following sets of coordinates (0.70, 0.30), (0.19, 0.72), (0.14, 0.06);

    a user interface linked to the microcontroller, the user interface comprising at least one switch for switching the operation of the microcontroller between a plurality of settings selected from the group consisting of power on, power off, freezing a light show in progress and switching from one of the plurality of light shows to another of the plurality of light shows; and

    the microcontroller being programmed to calculate a plurality of intermediate intensity levels for each of the LEDs for the duration of the segment based on the starting and target intensity levels and the timing information for each of the LEDs, and the microcontroller being programmed to control each of the LEDs to operate at each of the calculated intermediate intensity levels during the segment.

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