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Spread illuminating apparatus having heat sink function

  • US 6,517,229 B2
  • Filed: 01/31/2001
  • Issued: 02/11/2003
  • Est. Priority Date: 02/08/2000
  • Status: Expired due to Fees
First Claim
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1. A spread illuminating apparatus, comprising:

  • a bar-like light source disposed in the vicinity of an end surface of a transparent substrate made of a light-transmissible material, wherein the bar-like light source is composed of a light conductive member and a spot-like light source;

    the light conductive member is made of a transparent material, formed bar-like and disposed close to and along at least one end surface of the transparent substrate, and the spot-like light source is disposed on at least one end of the light conductive member, mounted on a printed wiring board, and enclosed by an enclosure made of a material having a high heat conductivity.

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