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Light-emitting apparatus with shaped wavelength converter

  • US 8,410,500 B2
  • Filed: 12/14/2007
  • Issued: 04/02/2013
  • Est. Priority Date: 12/21/2006
  • Status: Active Grant
First Claim
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1. A light-emitting apparatus comprising:

  • a semiconductor light emitting device comprising a light-emitting layer disposed between an n-type region and a p-type region,a transparent ceramic body comprising a wavelength converting material positioned in light receiving relationship to the semiconductor light-emitting device,the ceramic body further having a bottom surface facing towards the semiconductor light-emitting device, wherein the ceramic body has at least one side surface at an oblique angle with respect to the bottom surface,wherein at least one surface of the ceramic body has a reflective coating, andwherein an intermediate layer having a lower index of refraction than the ceramic body is disposed between the body and the reflective coating.

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