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Illumination structure and illumination lens mounted thereon

  • US 8,159,750 B2
  • Filed: 03/28/2008
  • Issued: 04/17/2012
  • Est. Priority Date: 10/13/2004
  • Status: Expired due to Fees
First Claim
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1. An illumination structure comprising:

  • a light source that emits light in at least one wavelength band; and

    an illumination lens having a light receiving portion and a light outgoing portion wherein an incident light from the light source is divided in a plurality of different directions by the light receiving portion and the divided lights are emitted in a plurality of different directions from the light outgoing portion, wherein the illumination lens is formed in such a manner that the surface of the light receiving portion is nonplanar-shaped;

    wherein the decoration treatment is performed by transparent coating, dichroic mirror evaporation or half-mirror evaporation; and

    wherein at least some of light being incident from the surface of the light outgoing portion is reflected by a portion subjected to the decoration treatment.

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