Light emitting device

  • US 7,872,273 B2
  • Filed: 03/23/2009
  • Issued: 01/18/2011
  • Est. Priority Date: 03/28/2008
  • Status: Active Grant
First Claim
Patent Images

1. A light emitting device, comprising:

  • a leadframe;

    a light emitting unit disposed on the leadframe;

    a transparent encapsulant covering the light emitting unit, wherein the transparent encapsulant has a concave on which at least one reflective surface is disposed; and

    a fluorescent colloid layer disposed outside the transparent encapsulant, wherein a chamber is formed between the fluorescent colloid layer and the transparent encapsulant;

    wherein the light generated by the light emitting unit is reflected by the reflective surface and guided to a side wall of the fluorescent colloid layer.

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