发明名称 |
Cathode for emission of electrons and electron tube with a cathode of this type |
摘要 |
This cathode has a body made of a material that does not emit electrons, having a substantially smooth non-emissive face and elements made of an emissive material each having an emissive face, spaced out from one another and fixed to the body, for example in hollows with their emissive surface in relief by a determined value with respect to said non-emissive face, so that a protection electrode can be placed between the projecting parts of these elements.
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申请公布号 |
US5021708(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19890372823 |
申请日期 |
1989.06.27 |
申请人 |
THOMSON-CSF |
发明人 |
NUGUES, PIERRE;DESMUR, HENRI;FLORENTIN, JOSE |
分类号 |
H01J1/13;H01J1/15;H01J1/18;H01J1/20;H01J1/26;H01J1/28;H01J3/02;H01J23/04;H01J23/06 |
主分类号 |
H01J1/13 |
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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