发明名称 |
Electron gun having a low capacitance cathode and grid assembly |
摘要 |
A cathode and grid assembly includes a first grid of small diameter secured to a planar inner surface of a ceramic means and over a central opening in the ceramic means and a second grid having a first planar section secured to a planar outer surface of the ceramic means, a second planar section positioned within the central opening and a frustum of a cone section interconnecting the first and second planar sections with the frustum of a cone section extending along a frustum of a cone outer surface of the ceramic means.
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申请公布号 |
US4500809(A) |
申请公布日期 |
1985.02.19 |
申请号 |
US19820417298 |
申请日期 |
1982.09.13 |
申请人 |
TEKTRONIX, INC. |
发明人 |
ODENTHAL, CONRAD J.;ASKEW, DENNIS D. |
分类号 |
H01J29/48;(IPC1-7):H01J29/48 |
主分类号 |
H01J29/48 |
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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