| 投影CRT用磁聚焦电子枪 |
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| 引用本文： | 王军,冉启钧.投影CRT用磁聚焦电子枪[J].电子科技大学学报(社会科学版),1999(3). |
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| 作者姓名： | 王军 冉启钧 |
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| 作者单位： | 电子科技大学光电子技术系!成都６１００５４ |
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| 基金项目： | 国家“九五”重点科研项目 |
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| 摘 要： | 论述了一种成功运用于１２２ｃｍ背投式彩色投影电视机阴极射线管（ＣＲＴ）中的磁聚焦电子枪。该枪采用了预聚焦发射系统和磁聚焦主透镜构成的双聚焦系统。经测试发现，当阴极电流为０．５～１．０ｍＡ时，其上屏束斑直径仅为０．０６５～０．０８０ｍｍ。
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| 关 键 词： | 电子枪 投影CRT 束斑直径 磁聚焦 |
Magnetic Focusing Electron Gun Used in Projection CRT |
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| Wang Jun,Ran Qjun.Magnetic Focusing Electron Gun Used in Projection CRT[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1999(3). |
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| Authors: | Wang Jun Ran Qjun |
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| Abstract: | The paper studies the magnetic focusing electron gun of CRT used in a new 48-inch rearcolor projection TV. The dual-focusing system in electron gun is developed, which is composed ofelectrostatic pre-focusing and electromagnetic focusing lens. As a result, on the green YAG phosphorscreen, beam spot is 0.065 mm-0.080mm only at cathode currents of o.5 mA-1.0 mA respectively. |
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| Keywords: | electron gun projection CRT diameter of beam spot magnetic focusing |
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