Cathode-ray tube

Details Cathode-ray tube Cathode-ray tube

1982-12-23

1985-03-05

Dixon, Harold

Electric lamp and discharge devices: systems

Cathode ray tube circuits

313299, 313402, 313414, 313479, 313313, 315 8, H01J 2334

Patent

active

045033579

ABSTRACT:
A cathode-ray tube has in a neck section of a hermetically sealed, evacuated envelope an electron-gun mount assembly in which of a cathode for emitting an electron beam, a first grid electrode section for forming a crossover point and for accelerating the electron beam and a second grid electrode section for focusing the electron beam are mounted on a plurality of insulative supporting bars. A conductive member is provided on an outer surface portion of the neck section, an inner surface portion thereof, and/or an outer surface portion of the supporting bars which surround a portion of the electron-gun mount assembly including the first grid electrode section but excepting the second grid electrode section.

REFERENCES:
patent: 2659022 (1953-11-01), Oestreicher
patent: 3443138 (1969-05-01), Schwartz
patent: 3558954 (1971-01-01), Lelleuy
patent: 4288719 (1981-09-01), Hernquist
patent: 4353006 (1982-10-01), Schade
patent: 4392083 (1983-07-01), Costello
patent: 4439710 (1984-03-01), Osakabe et al.

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