DEFLECTION YOKE FOR CATHODE RAY TUBE

摘要

PURPOSE: A deflection yoke is provided to allow raster distortions to be easily corrected by adjusting the intensity of the magnetic field of the coma-free coil. CONSTITUTION: A deflection yoke comprises an electron gun for emitting electron beams; horizontal and vertical deflection coils for deflecting electron beams in horizontal and vertical directions; and a holder(11) for insulation between the horizontal and vertical deflection coils. A coma-free coil(20) mounted in a neck portion of the holder is shaped as a square C and arranged in the upper and lower sides, centering from a tube axis. The coma-free coil has a center and both ends wound with a coil.