发明授权
US06448703B1 Electrode unit with inverted dynamic focus voltage applied thereto for forming quadrupole lens and dynamic focus electron gun using the same
失效
施加反向动态聚焦电压的电极单元用于形成四极透镜和使用其的动态聚焦电子枪
- 专利标题： Electrode unit with inverted dynamic focus voltage applied thereto for forming quadrupole lens and dynamic focus electron gun using the same
- 专利标题（中）： 施加反向动态聚焦电压的电极单元用于形成四极透镜和使用其的动态聚焦电子枪
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申请号： US09333947申请日： 1999-06-16
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公开(公告)号： US06448703B1公开(公告)日： 2002-09-10
- 发明人: Hyoung-Wook Jang
- 申请人： Hyoung-Wook Jang
- 优先权： KR98-52517 19981202
- 主分类号： H01J2950
- IPC分类号： H01J2950
摘要：
An electron gun for a color cathode ray tube including a triode consisting of a cathode, a control electrode and a screen electrode, and first and second focus electrodes facing each other and installed sequentially from the triode, for forming quadrupole lenses for focusing and accelerating an electron beam emitted from the triode, wherein three first-elongated electron beam passing holes slanting in one direction at a predetermined angle with respect to the longitudinal axis are formed on the facing surface of the first focus electrode, and three second-elongated electron beam passing holes slanting in a direction opposite to that of the first-elongated electron beam passing holes at a predetermined angle with respect to the longitudinal axis are formed on the facing surface of the second focus electrode, and wherein a dynamic focus voltage synchronized with a deflection signal is applied to the first focus electrode and a focus voltage is applied to the second focus electrode.
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