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Light emitting device

  • US 7,249,869 B2
  • Filed: 07/29/2005
  • Issued: 07/31/2007
  • Est. Priority Date: 07/30/2004
  • Status: Expired due to Fees
First Claim
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1. A light emitting device comprising:

  • a mark body;

    a substrate, a first surface of which the mark body is arranged;

    a light emitting diode (LED) mounted on a second surface of the substrate; and

    a light guide arranged on the second surface of the substrate, including a first surface for introducing a light emitted from the LED, a second surface for emitting the light and a third surface opposing the first surface on which a light is reflected in a diffused manner,wherein the third surface of the light guide comprises a plurality of protrusions in a rib form and the plurality of protrusions are formed such that the protrusions are arranged substantially at an equal interval in a direction along the outer edge of the light guide.

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