| 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（自然科学版）,1999,28(3):329-332. |
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| 作者姓名： | 王军 冉启钧 |
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| 作者单位： | 1.电子科技大学光电子技术系 成都 610054 |
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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 |
| 收稿时间： | 1998-11-19 |
Magnetic Focusing Electron Gun Used In Projection CRT |
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| Wang Jun,Ran Qijun.Magnetic Focusing Electron Gun Used In Projection CRT[J].Journal of University of Electronic Science and Technology of China,1999,28(3):329-332. |
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| Authors: | Wang Jun Ran Qijun |
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| Affiliation: | 1.Dept. of Opto-Electronic Technology,UEST of China Chengdu 610054 |
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| Abstract: | The
paper studies the magnetic focusing electron gun of CRT used in a new 48-inch rear color
projection TV. The dual-focusing system in electron gun is developed, which is composed of
electrostatic pre-focusing and electromagnetic focusing lens. As a result, on the green
YAG phosphor screen, beam spot is 0.065 mm~0.080 mm only at cathode currents of 0.5 mA~1.0
mA respectively. |
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