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Wavelength conversion component

  • US 8,610,341 B2
  • Filed: 10/13/2011
  • Issued: 12/17/2013
  • Est. Priority Date: 10/05/2010
  • Status: Active Grant
First Claim
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1. A wavelength conversion component for a light emitting device comprising:

  • a light diffusing layer comprising particles of a light scattering material, wherein the light diffusing layer has a shape with an inner surface that defines an interior volume;

    a wavelength conversion layer comprising particles of at least one photoluminescence material within the interior volume,wherein the light diffusing layer improves an off-state white appearance of the wavelength conversion component; and

    wherein the wavelength conversion component is configured such that in operation a portion of excitation light comprising blue light having a wavelength of greater than or equal to 440 nm generated by the light emitting device is emitted through the wavelength conversion component to contribute to a final visible emission product.

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