发明名称 |
IMAGE INTENSIFIERS |
摘要 |
Previously shielded image intensifier faceplates have been manufactured by a method which has a number of disadvantages, requiring difficult and expensive machining, and introducing distortions. These may be overcome by employing the invention, where a clear glass disc 13 and a black glass disc 14 are placed in a graphite mould 15 and located so that they fuse and form a block having a shape conforming to the internal configuration of the mould. Then the block need only be ground down to size and unwanted parts of the black glass removed. |
申请公布号 |
DE3473530(D1) |
申请公布日期 |
1988.09.22 |
申请号 |
DE19843473530 |
申请日期 |
1984.10.08 |
申请人 |
ENGLISH ELECTRIC VALVE COMPANY LIMITED |
发明人 |
HOLLAND, DAVID GEORGE;BANKS, PETER BALDWIN |
分类号 |
C03B23/20;C03B23/203;H01J9/24;H01J29/86;H01J29/89;(IPC1-7):H01J43/28;H01J9/26 |
主分类号 |
C03B23/20 |
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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