发明名称 |
Method of cold cathode replenishment in electron beam apparatus and replenishable cold cathode assembly. |
摘要 |
<p>This disclosure is concerned with automatically replenishable cold cathode structures and the like wherein the monitoring of a predetermined variation in electron beam performance caused by erosion of the cathode material generates control signals for advancing reserve cathode material into operative position.</p> |
申请公布号 |
EP0106589(A2) |
申请公布日期 |
1984.04.25 |
申请号 |
EP19830305775 |
申请日期 |
1983.09.27 |
申请人 |
TETRA PAK FINANCE & TRADING S.A. |
发明人 |
CHEEVER, RICHARD NORCROSS |
分类号 |
H01J37/06;A23L3/32;A61L2/08;G21K1/00;G21K5/04;H01J3/02;H01J37/30;(IPC1-7):01J37/06;01J1/30 |
主分类号 |
H01J37/06 |
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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