IN-LINE TYPE ELECTRON GUN FOR CRT

摘要

An inline-type electron gun is described that can form an acceleration electrode seperately to prevent the emitting angle of an electron beam from rising rapidly. The inline-type electron gun includes a cathode 3 for generating an electron, a control electrode 4 and acceleration electrode 16 for controlling the electron beam 13, and a first acceleration/collection electrode 6 for accelerating the electron beam 13 from the acceleration electrode 16 and collecting it. The acceleration electrode 16 is seperated to three plate electrodes 16a, 16b and 16c, wherein the electric potential of the acceleration electrode 16 is applied to the plate electrodes 16a and 16c and the electric potential less than that thereof is applied to the plate electrodes 16b. Thereby, it is possible to prevent the deterioration of a focus characteristic.