Coma-error correcting means of CRT

Details Coma-error correcting means of CRT Coma-error correcting means of CRT

1995-12-21

1998-09-22

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313442, 335210, 335213, H01J 2970, H01J 2946, H01H 8522, H01H 8548

Patent

active

058119221

ABSTRACT:
A coma-error correction means of a deflection yoke is disclosed, in which a ferrite core wound with a vertical deflection coil is mounted on the periphery of a coil separator by a core clamp, a neck portion is extended from the top of the coil separator and attached with a coma-error correcting means at its horizontal surface, and a screen portion is extended from the bottom of the coil searator, wherein said coma-error correcting means includes a correction magnetic plate, two correction iron pieces serving as mounting surfaces and integrally formed at the end parts of the correction magnetic plate, and a coma-error correction coil wound on the top of the correction magnetic plate.

REFERENCES:
patent: 4689525 (1987-08-01), Shimoma et al.
patent: 4723094 (1988-02-01), Shimoma et al.
patent: 4725763 (1988-02-01), Okuyama et al.
patent: 4962333 (1990-10-01), Sluyterman
patent: 5179319 (1993-01-01), Iwasaki et al.

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