HORIZONTAL SHIFT CORRECTION SYSTEM OF FLANGELESS TYPE DEFLECTION YOKE

摘要

PURPOSE: A horizontal shift correction system of a flangeless type deflection yoke is provided to correct efficiently a horizontal shift due to a balance of a horizontal deflection magnetic field. CONSTITUTION: A deflection yoke(10) is formed with a deflection coils(12,14), a coil separator(16), a ferrite core(18), and a CPM(Convergence and Purity Magnet)(20). A horizontal deflection coil(12) is installed on an inside of the coil separator(16) in order to generate a magnetic field of a pin-cushion type toward a vertical direction. A vertical deflection coil(14) is installed between the coil separator(16) and the ferrite core(18) in order to generate the magnetic field of a barrel type toward a vertical direction. The CPM(20) is used for focusing an electron beam by the magnetic field of an outside. A bar installation structure(24) is formed at a left side and a right side of a predetermined point of the coil separator(16). The bar installation structure(24) is used for installing a ferrite bar(22).