Color cathode ray tube apparatus

Details Color cathode ray tube apparatus Color cathode ray tube apparatus

1985-07-29

1987-10-20

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315 15, 313414, H01J 2958

Patent

active

047016779

ABSTRACT:
In a cathode ray tube apparatus having an in-line type electron gun, the focusing grid of the quadrupole electric field (8) which comprises the horizontal-electric-field boosting grids (11) and (11') and the vertical-electric-field boosting grids (12) and (12') is disposed between the first focusing grid (7) and the second focusing grid (9).

REFERENCES:
patent: 3544836 (1970-12-01), Reisner
patent: 3702950 (1972-11-01), Nakamura
patent: 3949166 (1976-04-01), Fuse
patent: 3952227 (1976-04-01), Van Alphen
patent: 4370594 (1983-01-01), Kuzenetzoff
patent: 4443736 (1984-04-01), Chen
patent: 4468587 (1984-04-01), Sluyterman
patent: 4473775 (1984-09-01), Hosokoshi et al.

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