| 发明名称 |
Infra-red filter |
| 摘要 |
An infra-red filter substrate surface is profiled to form an undulating pattern whose dimensions correspond to the operating wavelength. This prevents spurious reflections when the filter is subsequently provided with a protective coating.
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| 申请公布号 |
US4322125(A) |
申请公布日期 |
1982.03.30 |
| 申请号 |
US19790066198 |
申请日期 |
1979.08.13 |
| 申请人 |
INTERNATIONAL STANDARD ELECTRIC CORPORATION |
发明人 |
WARREN, STANLEY W. |
| 分类号 |
G02B1/11;G02B5/00;G02B13/14;(IPC1-7):G02B5/28 |
主分类号 |
G02B1/11 |
| 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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