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LIGHT EMITTING DEVICES AND SYSTEMS HAVING TUNABLE CHROMATICITY AND METHODS OF TUNING THE CHROMATICITY OF LIGHT EMITTING DEVICES AND SYSTEMS

  • US 20100315012A1
  • Filed: 04/08/2010
  • Published: 12/16/2010
  • Est. Priority Date: 02/19/2009
  • Status: Active Grant
First Claim
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1. A light emitting device package assembly, comprising:

  • a light emitting device package body; and

    first, second and third white light emitting devices on the package body, wherein each of the first, second and third white light emitting devices emits light when energized having a chromaticity that falls within a respective one of first, second and third non-overlapping chromaticity regions in a two dimensional chromaticity space, wherein the first, second and third chromaticity regions are spaced apart in the two dimensional chromaticity space by respective regions having at least the size of a seven step MacAdam ellipse.

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