Patent ID: 6756726
Filing Date: 2004-06-29
Classification: H01J

Abstract:
A deflection yoke comprising:a pair of saddle-shaped horizontal deflection coils disposed to be symmetric with respect to a center axis and having a substantially truncated-pyramidal shape; a magnetic core having a substantially truncated-conical shape and disposed coaxially with the center axis on an outer peripheral side of the horizontal deflection coils; and a pair of toroidal vertical deflection coils disposed to be symmetric with respect to the center axis, wherein a middle point of an entire length along the center axis from a large-diameter portion to a small-diameter portion of the magnetic core lies on a small-diameter portion side of the horizontal deflection coil relative to a point lying at a distance of 0.41Ã—HL along the center axis from a large-diameter portion of the horizontal deflection coil, where HL is an entire length of the horizontal deflection coil along the center axis.