Patent ID: 6431716
Filing Date: 2002-08-13
Classification: G02B

Abstract:
In a side system of a spread illuminating apparatus in which a bar-like light source is disposed close to a transparent substrate made of a transparent material having transparency, said light source consists of a light conductive member made of a bar-like transparent material having transparency and disposed along and close to at least one side end of the transparent substrate, said transparent substrate and said light conductive member are integrally formed in such a manner that both parts are continuous with each other at one of upper and lower surface sides, a spot-like light source is disposed at one end of the light conductive member and a light reflection means is formed by vaporizing a metallic layer on the other end of the light conductive member, and an amount of light reflected at said light reflection means is adapted to make up for an amount of reduction of emitted light at an optical path conversion means.