Color cathode-ray tube apparatus

Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means

Reexamination Certificate

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Details

C313S413000, C315S364000, C315S391000, C315S399000

Reexamination Certificate

active

11207564

ABSTRACT:
An insulating frame of a deflection yoke is fixed to a funnel with a metal band and a metal screw. A partition formed so as to be integrated with a holder holding a magnet ring of a CPU includes a first partition provided on a first axis so as to hide the metal screw when the deflection yoke is seen from the holder side along a tube axis, and a second partition provided on a second axis orthogonal to the first axis. A height H1of the first partition, a height H2of the second partition, a minimum height Hminof the partition, a height HMof a pull of a magnet ring on a side closest to the deflection yoke, and an outer circumferential edge diameter RMof the magnet ring excluding the pull satisfy relationships: H1>H2, HM−H2>10 mm, and Hmin>RM. Because of this, a discharge between a metal band and a metal screw that fix the deflection yoke, and a velocity modulation coil can be prevented without decreasing the operability of the rotation adjustment of the magnet ring of the CPU.

REFERENCES:
patent: 3097458 (1963-07-01), Iwasaki
patent: 6404117 (2002-06-01), Soneda et al.
patent: 7126292 (2006-10-01), Morimoto et al.
patent: 57-45650 (1982-10-01), None
patent: 6-283113 (1994-10-01), None
patent: 3097458 (2004-01-01), None

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