Electron gun for color picture cathode-ray tube with hexagonal c

Details Electron gun for color picture cathode-ray tube with hexagonal c Electron gun for color picture cathode-ray tube with hexagonal c

1992-03-09

1993-03-23

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313409, H01J 2962

Patent

active

051967626

ABSTRACT:
An electron gun for a color picture cathode-ray tube which includes a main focusing lens of a large diameter for reducing deterioration of the focusing property caused by the spherical aberration of the main focusing lens, shortening the distances among three electron beams to minimize the deflection aberration from deflection yoke and making feasible a design for effective enlargement of the lens diameter even with the shortening of the distances among the three electron beams in the color picture cathode-ray tube requiring a good focusing property of the three beams.

REFERENCES:
patent: 4370592 (1983-01-01), Hughes et al.
patent: B14370592 (1984-08-01), Hughes et al.
patent: 4535266 (1985-08-01), Say
patent: 4622491 (1986-11-01), Izumida et al.
patent: 4626738 (1986-12-01), Gerlach
patent: 4766344 (1988-08-01), Say
patent: 4887009 (1989-12-01), Bloom et al.

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