发明授权
US5001385A Electron beam apparatus with adjusting mechanism for a thermally
emitting cathod tip
失效
具有用于发热阴极尖端的调节机构的电子束装置
- 专利标题: Electron beam apparatus with adjusting mechanism for a thermally emitting cathod tip
- 专利标题(中): 具有用于发热阴极尖端的调节机构的电子束装置
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申请号: US316393申请日: 1989-02-27
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公开(公告)号: US5001385A公开(公告)日: 1991-03-19
- 发明人: Bernardus J. G. M. Roelofs
- 申请人: Bernardus J. G. M. Roelofs
- 申请人地址: NY New York
- 专利权人: U.S. Philips Corp.
- 当前专利权人: U.S. Philips Corp.
- 当前专利权人地址: NY New York
- 优先权: NLX8800539 19880303
- 主分类号: H01J1/15
- IPC分类号: H01J1/15 ; H01J1/18 ; H01J37/06 ; H01J37/067
摘要:
In order to avoid undesired variations in the emission current intensity of a clamping device for a thermally emitting cathode tip constructed from pyrolytice graphite, a resilient coupling compensating the thermal stresses n the graphite is provided in an electron beam apparatus.
公开/授权文献
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