| 摘要 |
An electron gun for a color cathode ray tube (CRT) includes at least one auxiliary quadruple lens forming unit for making an electron beam diverging in the vertical direction and focused in the horizontal direction by a plurality of focus electrodes, at least one first quadruple lens forming unit for making the electron beam passing through the auxiliary quadruple lens focused in the vertical direction and diverging in the horizontal direction, and at least one second quadruple forming unit for making the electron beam passing through the first quadruple lens diverging in the vertical direction and focused in the horizontal direction, installed between the screen electrode of a triode portion and a final acceleration electrode, which are sequentially arranged in a direction from a screen electrode to a fluorescent film of a cathode ray tube. Thus, a horizontal resolution at the periphery of a screen is improved.
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