Color cathode ray tube having a low dynamic focus voltage

A color cathode ray tube having an electron gun comprising at least first electrode means for generating a plurality of electron beams from cathodes and directing said plurality of electron beams toward a phosphor screen along initial paths in parallel with each other in a horizontal plane and second electrode means constituting a main lens for focusing said plurality of electron beams on said phosphor screen, wherein a final lens among lenses constituting said main lens has an electrode constitution acting so as to focus said plurality of electron beams strongly horizontally and weakly vertically and weaken a lens action thereof according to an increase in an amount of deflection of said plurality of electron beams, at least one multipole lens acting so as to elongate a cross section of said plurality of electron beams less horizontally with an increasing amount of deflection of said plurality of electron beams is located between said final lens and said first electrode means, at least one correction lens for curvature of an image field for weakening focusing action on said plurality of electron beams horizontally and vertically according to an increase in an amount of deflection of said plurality of electron beams is located between said final lens and said at least one multipole lens, and at least one of said at least one multipole lens and said at least one correction lens for curvature of the image field has an electrode constitution in which trajectories of outer electron beams among said plurality of electron beams are deflected inwardly according to an increase in an amount of deflection of said plurality of electron beams.