发明名称 |
Filter assembly for radiation optical metal - mineral analyzer |
摘要 |
<p>At least two thin films whose spectral absorption is in different regions are so arranged that the radiation may be absorbed selectively in one or other of them. Each filter film is carried on a supporting foil of relatively transparent material and covered by a similar layer for further support and/or protection. One or both of the transparent layers is of plastic or paper.</p> |
申请公布号 |
DE2064320(A1) |
申请公布日期 |
1971.07.08 |
申请号 |
DE19702064320 |
申请日期 |
1970.12.29 |
申请人 |
PYE LTD |
发明人 |
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分类号 |
G01N23/22;G01V5/12;G21K1/10;(IPC1-7):05G3/00 |
主分类号 |
G01N23/22 |
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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