STATIC DEVICE FOR CORRECTING LANDING DEVIATION OF ELECTRON BEAM

摘要

PROBLEM TO BE SOLVED: To provide a static deflection device for correcting the landing deviations of the electron beam. SOLUTION: The jointless magnetic outer case 101 is installed on a funnel 103 of a cathode-ray tube 102, at the back of a deflection coil of the deflection yoke 108. In order to change the landing location of the beam on the screen 107 of the cathode-ray tube, various combinations of magnetic poles are formed by the magnetic ferrite material of the outer case. The jointless outer case is formed by an extrusion process or molding process.