发明名称 |
ELECTRON EMITTING ELEMENT, ELECTRON SOURCE AND IMAGE FORMING DEVICE |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electron emitting element in which the current flowing under impression of pulse voltage is constant during the period from the start of the pulse to its end. SOLUTION: An electron emitting element is equipped on a base board with a pair of element electrodes positioned opposingly and a conductive thin film installed between the element electrodes and having an electron emission part, wherein the base board is furnished at least with a high thermal conduction layer having a thermal diffusivity D2 and a low thermal conduction layer formed between the high conduction layer and conductive thin film and having a thermal diffusivity D1, and thereby the condition D1<D2 should be met.</p> |
申请公布号 |
JP2000082381(A) |
申请公布日期 |
2000.03.21 |
申请号 |
JP19980253038 |
申请日期 |
1998.09.07 |
申请人 |
CANON INC |
发明人 |
KIMURA KEIKO;OKUDA MASAHIRO;ASAI AKIRA |
分类号 |
H01J1/316;H01J29/04;H01J31/12;(IPC1-7):H01J1/316 |
主分类号 |
H01J1/316 |
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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