Color cathode ray tube having improved main lens electrodes

Details Color cathode ray tube having improved main lens electrodes Color cathode ray tube having improved main lens electrodes

1999-02-09

2000-06-27

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313414, 313448, 313449, H01J 2950

Patent

active

060810688

ABSTRACT:
A color cathode ray tube includes a phosphor screen, a shadow mask closely spaced from the phosphor screen and an electron gun. The electron gun includes three cathodes for emitting three in-line electron beams and a plurality of electrodes each having electron beam apertures for passing the electron beams, the electrodes are fixed in a predetermined axially spaced relationship on insulating supports, at least one of the electrodes is cup-shaped and has a correction plate electrode therein welded thereto, and edges of the correction plate electrode are formed with recesses and have sloped portions extending in a direction away from the recesses toward an inner wall of the electrode containing the correction plate electrode.

REFERENCES:
patent: 4668892 (1987-05-01), Peels
patent: 5886462 (1999-03-01), Sudo et al.

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