发明名称 LIGHT SOURCE SWITCHING UNIT
摘要 PURPOSE:A plural number of luminous sources are arranged in parallel and the light waveguide pattern is varied to protect the luminous source against the deterioration of its life and a trouble, thereby eliminating communication interruption and reducing the propagation loss of the light waveguide.
申请公布号 JPS5399801(A) 申请公布日期 1978.08.31
申请号 JP19770015150 申请日期 1977.02.14
申请人 SUMITOMO ELECTRIC INDUSTRIES 发明人 NAKAHARA TSUNEO;TADA KOUJI
分类号 H04B10/00;H04B10/03;H04B10/032;H04B10/07;H04B10/2507;H04B10/27 主分类号 H04B10/00
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