发明授权
US4057747A In-line plural beam color cathode ray tube having deflection defocus correcting elements 失效
具有偏转散焦校正元件的直列式多束彩色阴极射线管

In-line plural beam color cathode ray tube having deflection defocus
correcting elements
摘要:
In a color cathode ray tube including an electron gun means for projecting three electron beams in an in-line arrangement, there is provided deflection defocus correcting means which are disposed adjacent the side electron beams for neutralizing the deflection defocus of the side beam caused by the non-uniformity of the deflection fields.
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