Electron gun with electrode supports

An electron gun for a cathode ray tube comprising:

• a plurality of electrodes including a cathode, a control electrode, an accelerating electrode, a first anode, a focus electrode and a second anode, which electrodes are arranged in a tube axial direction at predetermined intervals;
• and
• electrode supports provided to a side wall of each electrode and embedded in and secured to insulating supports;
• wherein the focus electrode is cylindrical and has three different diameters respectively provided at a cathode side portion, an intermediate portion and a panel side portion, the panel side portion of the focus electrode is inserted into the second anode to constitute a main lens section, the focus electrode is divided into a first focus electrode on the second anode side and a second focus electrode on the cathode side, and the divided electrodes are electrically connected.

An electron gun for a cathode ray tube comprising:

• a plurality of electrodes including a cathode, a control electrode, an accelerating electrode, a first anode, a focus electrode and a second anode, which electrodes are arranged in a tube axial direction at predetermined intervals;
• and
• electrode supports provided to a side wall of each electrode and embedded in and secured to insulating supports;
• wherein the second anode is opposed to the focus electrode to constitute a main lens, and the focus electrode has a second anode side cylindrical portion on the second anode side and a cathode side cylindrical portion on the cathode side and also has an intermediate portion connecting the second anode side cylindrical portion and the cathode side cylindrical portion the intermediate portion has an inner diameter smaller than that of the second anode side cylindrical portion or the cathode side cylindrical portion, and the electrode support is provided to the intermediate portion.