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Light-emitting apparatus

  • US 8,356,913 B2
  • Filed: 12/15/2011
  • Issued: 01/22/2013
  • Est. Priority Date: 10/12/2006
  • Status: Active Grant
First Claim
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1. A light-emitting apparatus comprising:

  • a storage case that includes a base board having a concave portion and a lid portion covering the concave portion; and

    a plurality of light-emitting elements that are disposed on an inner surface of the case,wherein an opening is formed in the lid portion,a plurality of cavities that are branched from the position directly underneath the opening are formed in the case,an inner surface of each of the cavities is a light-reflecting surface and is constituted of a parabolic surface and a flat surface opposing the parabolic surface,a focal position of the parabolic surface is positioned on the flat surface,respective ones of the plurality of light-emitting elements are disposed at the focal positions of respective ones of the plurality of cavities,the light-reflecting surface guides light emitted by the light-emitting elements as light sources to a position directly underneath the opening,a reflecting portion is formed directly underneath the opening so as to reflect the light emitted by the light-emitting elements toward the opening,a front end portion of the reflecting portion is disposed near the opening, andthe light-emitting apparatus comprises further a convex lens that closes the opening and a reflector that is disposed on the lid portion of the storage case so as to expose the convex lens.

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