Flat plate-shaped cathode ray tube

Details Flat plate-shaped cathode ray tube Flat plate-shaped cathode ray tube

1985-11-06

1988-05-17

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315383, 358 67, H01J 2970

Patent

active

047453443

ABSTRACT:
An electron beam detecting electrode is provided laterally outside an effective picture area, to detect a beam current amount and vertical position of the electron beam. An amount of the electron beam current and a position of the electron are controlled by utilizing an output signal of the electron beam detecting electrode, and a uniform brightness and a uniform distance between horizontal scanning lines are obtainable.

REFERENCES:
patent: 3939486 (1976-02-01), Tomii
patent: 4163971 (1979-08-01), Morin et al.
patent: 4174523 (1979-11-01), Marlowe et al.
patent: 4223344 (1980-09-01), Hosono et al.
patent: 4259612 (1981-03-01), Christiano et al.
patent: 4360826 (1982-11-01), Miyazaki et al.
patent: 4449148 (1982-01-01), Inohara et al.
patent: 4451846 (1984-05-01), Iyehara et al.

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