Cathode-ray tube device capable of reducing misconvergence

Details Cathode-ray tube device capable of reducing misconvergence Cathode-ray tube device capable of reducing misconvergence

2007-06-05

2007-06-05

Patel, Nimesh (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

C313S441000

Reexamination Certificate

active

10918310

ABSTRACT:
A cathode-ray tube device including a deflection yoke for deflecting an electron beam emitted from an electron gun in horizontal and vertical directions. The deflection yoke has a vertical deflection coil that deflects the electron beam vertically. The vertical deflection coil is wound toroidally around a bell-shaped ferrite core, and on the electron gun side of the ferrite core, a square “U” shaped magnetic body that is doubled back partway along in a longitudinal direction is disposed on the horizontal axis, so that the ends thereof extend towards and are separated along the tube axis.

REFERENCES:
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patent: 4876479 (1989-10-01), Kawabata et al.
patent: 6046538 (2000-04-01), Hishiki et al.
patent: 2005/0023952 (2005-02-01), Iwasaki et al.
patent: 05-244614 (1993-09-01), None

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