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LIGHT-EMITTING DIODE DEVICE

  • US 20080179615A1
  • Filed: 12/13/2007
  • Published: 07/31/2008
  • Est. Priority Date: 01/26/2007
  • Status: Abandoned Application
First Claim
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1. A light-emitting diode (LED) device, comprising:

  • a substrate;

    at least one LED element disposed on the substrate for generating a light beam; and

    an optical modulation structure disposed at one side of the LED element for adjusting a shape of an optical field of the light beam and an intensity distribution of the optical field, wherein the optical modulation structure is formed with a plurality of stepped protrusions.

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