发明授权
- 专利标题： Electron tube device mounted with a cold cathode and a method of impressing voltages on electrodes of the electron tube device
- 专利标题（中）： 安装有冷阴极的电子管装置和在电子管装置的电极上施加电压的方法
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申请号： US09960767申请日： 2001-09-24
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公开(公告)号： US06756734B2公开(公告)日： 2004-06-29
- 发明人: Shunji Tsuida , Hironori Imura , Hideo Makishima
- 申请人： Shunji Tsuida , Hironori Imura , Hideo Makishima
- 优先权： JP9-217666 19970812
- 主分类号： H01J2316
- IPC分类号： H01J2316
摘要：
Expressing a perveance of an electron gun to be determined by a form of the electron gun as P&mgr;, a voltage to be impressed on an accelerating electrode Va and a beam current Ib, voltage Va which satisfies the following expression, Ib