| 发明名称 |
VARIABLE LIGHT ATTENUATOR |
| 摘要 |
PURPOSE:To readily perform adjustment of light attenuating quantity with a simple constitution by so disposing two sheets of substrates whose optical guides are expanded in taper form that the optical guide expanding portions mutually oppose. |
| 申请公布号 |
JPS542143(A) |
申请公布日期 |
1979.01.09 |
| 申请号 |
JP19770067178 |
申请日期 |
1977.06.07 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
TAKATO NORIO;KUROKAWA TAKASHI;KATAYAMA YUUZOU;MIKI TETSUYA;AOYAMA SATORU |
| 分类号 |
G02B6/00;G02B6/26;G02B26/02;G02F1/01 |
主分类号 |
G02B6/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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