Side illumination lens and luminescent device using the same

  • US 7,901,113 B2
  • Filed: 03/24/2010
  • Issued: 03/08/2011
  • Est. Priority Date: 10/07/2004
  • Status: Active Grant
First Claim
Patent Images

1. A light emitting device, comprising:

  • a light emitting diode;

    a lens arranged to receive light from the light emitting diode, the lens comprising a total reflection surface having a total reflection slope with respect to a central axis of the light emitting diode; and

    at least one of a linear refractive surface and a curved refractive surface formed to extend away from the central axis and beyond a periphery of the total reflection surface.

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