发明名称 |
Optical wave guide. |
摘要 |
<p>An optical wave guide having at least one wave guide portion (1) which is clad by a cladding portion (2) between whose refractive index and that of the wave guide portion (1) there is a refractive index difference characterised in that the refractive index difference increases as the wavelength of the light propagated through the wave guide increases.</p> |
申请公布号 |
EP0269365(A2) |
申请公布日期 |
1988.06.01 |
申请号 |
EP19870310207 |
申请日期 |
1987.11.19 |
申请人 |
SEIKO INSTRUMENTS INC. |
发明人 |
TAKEMURA, YASUHIRO;TAKESUE, TOSHIHARU |
分类号 |
G02B6/34;G02B6/122;G02B6/10;G02B6/28;G02B6/293;(IPC1-7):G02B6/10 |
主分类号 |
G02B6/34 |
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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