| 摘要 |
PROBLEM TO BE SOLVED: To prevent discharge between a metal band or a metal screw for fixing a deflection yoke and a speed modulation coil without degrading workability of rotation adjustment of a magnet ring of a CPU. SOLUTION: An insulation frame 35 of the deflection yoke is fixed to a funnel 12 with the metal band 37 and the metal screw 38. A partition formed integrally with a holder 45 for holding the magnet ring of the CPU 40 comprises: a first partition 46a formed on a first axis so as to hide the metal screw in viewing the deflection yoke from the holder side along a tube axis; and a second partition 46b formed on a second axis perpendicular to the first axis. The height H<SB>1</SB>of the first partition, the height H<SB>2</SB>of the second partition, the minimum height H<SB>min</SB>of the partitions, the height H<SB>M</SB>of a knob part of the magnet ring nearest to the deflection yoke, and the peripheral edge diameter R<SB>M</SB>of the magnet ring excluding the knob part satisfy H<SB>1</SB>>H<SB>2</SB>, H<SB>M</SB>-H<SB>2</SB>>10 mm and H<SB>min</SB>>R<SB>M</SB>. COPYRIGHT: (C)2006,JPO&NCIPI
|
