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US07009333B2 Structure of electron gun for color cathode ray tube 失效
彩色阴极射线管电子枪结构

Structure of electron gun for color cathode ray tube
摘要:
A cathode ray tube with a reduced beam spot size on a fluorescent screen is obtained by forming electron beam passing holes on the electrodes composing a triode portion of an electron gun to have horizontally and vertically asymmetric shapes.
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