| 摘要 |
The invention provides a deflection yoke comprising: a tube-shaped core made of a magnetic material that has on its inner wall, ridges each of which extends along the CRT axis direction, the ridges being arranged circumferentially at intervals and thereby forming slots; a vertical deflection coil wound so that part of its length is disposed in the slots; and a horizontal deflection coil wound so that part of its length is disposed in the slots, wherein the slots include (a) first slots in which one of the horizontal deflection coil and the vertical deflection coil is disposed and (b) second slots in which both of the deflection coils are disposed, and the bottom of each first slot is, for part or all of the length of the slot, closer to the external surface of the evacuated envelope than the bottom of each second slot is.
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