发明名称 Spread illuminating apparatus with a pair of light sources overlapped in a thickness direction of a transparent substrate
摘要 There is provided a spread illuminating apparatus realizing both uniform light emission and high brightness. Two bar-like light conductive members made of a transparent material and each having a spot-like light source disposed on a large end thereof are disposed so as to overlap with each other in the thickness direction of a transparent substrate, thereby constituting a pair of bar-like light sources. Light emitted from the spot-like light source and entering one light conductive member of the two is directly guided into the transparent substrate without passing through the other light conductive member. Thus, light rays emitted from the two light conductive members do not interfere with each other so as to prevent generation of interference fringes, resulting in that uniform light emission and high brightness in the spread illuminating apparatus can be realized.
申请公布号 US6561661(B2) 申请公布日期 2003.05.13
申请号 US20010985136 申请日期 2001.11.01
申请人 MINEBEA CO., LTD. 发明人 EGAWA MOTOJI
分类号 F21V8/00;F21Y101/02;G01D11/28;G02B6/00;(IPC1-7):G01D11/28 主分类号 F21V8/00
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