发明名称 |
Optical attenuation device having different type magneto-optical optical attenuation elements cascaded together |
摘要 |
An optical attenuation device to attenuate the intensity of incident light, comprising an optical attenuation unit including at least two different type magneto-optical optical attenuation elements coupled in a cascade together.
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申请公布号 |
US6345142(B1) |
申请公布日期 |
2002.02.05 |
申请号 |
US19990414499 |
申请日期 |
1999.10.08 |
申请人 |
FUJITSU LIMITED |
发明人 |
NAKAZATO HIROAKI;KAWARAI MASASHIGE |
分类号 |
G02F1/09;(IPC1-7):G02F1/09 |
主分类号 |
G02F1/09 |
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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