Electron gun for color cathode ray tube

An electron gun for a color cathode ray tube comprising:

• a triode including a cathode, a control electrode, and a screen electrode for producing electron beams;
• and
• first, second, third, fourth, and fifth focus electrodes and a final accelerating electrode sequentially disposed from said screen electrode, wherein a first constant voltage is applied to said first, third, and fifth focus electrodes, a second constant voltage lower than the first constant voltage is applied to said screen electrode and said second focus electrode, and a third constant voltage lower than said first constant voltage and different from the second constant voltage is applied to said fourth focus electrode, so that a first auxiliary lens section for crossing electron beams from said triode is formed by said first, second, and third focus electrodes, a second auxiliary lens for pre-focusing the crossed electron beams is formed by said third, fourth, and fifth focus electrodes, and a main lens is formed by said fifth focus and final acceleration electrodes.