| 摘要 |
<p>A cathode ray tube comprises, at least, an electron beam generation unit, a plurality of electrodes constituting an electron lens unit for allowing electron beams which are emitted from the electron beam generation unit to focus on a predetermined location on a phosphor screen, a pair of insulating support rods (13a, 13b) for supporting the electrodes, a resistor unit (141) for applying a voltage to at least one of the plurality of electrodes, and a metal ring (SR) mounted in contact with a predetermined electrode of the electron lens unit and surrounding the insulating support rod (13a, 13b). A voltage pickup terminal (T21) on the resistor unit (141) of the cathode ray tube, via which a voltage is applied to at least one electrode in the electron lens unit, is located on the electron beam generation unit side with the metal ring (SR) as a reference. The potential on the metal ring (SR) is lower than a potential on the voltage pickup terminal (T21).</p> |
