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Lighting source using solid state emitter and phosphor materials

  • US 9,447,945 B2
  • Filed: 01/09/2015
  • Issued: 09/20/2016
  • Est. Priority Date: 05/05/2004
  • Status: Active Grant
First Claim
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1. A light-emitting apparatus comprising:

  • a substrate;

    a light source configured to emit light and arranged on the substrate;

    a phosphor layer being apart from the light source and configured to convert the light into forward transmitted light and backward transmitted light; and

    an optic device, being narrower than the substrate and having a transparent side wall, configured to direct at least a portion of the backward transmitted light through the transparent side wall and toward the substrate.

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