Electric lamp and discharge devices: systems – Cathode ray tube circuits – Plural concentrating – accelerating – and/or de-accelerating...
Patent
1985-02-19
1987-12-08
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Plural concentrating, accelerating, and/or de-accelerating...
313414, 313449, H01J 2946, H01J 2956
Patent
active
047120436
ABSTRACT:
An electron gun for producing and directing at least one electron beam along a beam path comprises a beam forming section and a main lens section for focusing the electron beam. The main lens section includes first and second electrodes arranged along the beam path and having an aperture through which the electron beam is passed, and at least one auxiliary electrode which is located between the first and second electrodes, the auxiliary electrode having an aperture through which the electron beam is passed. The aperture of the auxiliary electrode is greater than each of the apertures of the first and second electrodes. Different voltages are applied to the first and second electrodes, and the auxiliary electrode is supplied with a middle voltage intermediate between the two voltages applied to the first and second electrodes.
REFERENCES:
patent: 3678329 (1972-07-01), Miyaoka
patent: 3895253 (1975-07-01), Schwartz et al.
patent: 3932786 (1976-01-01), Campbell
patent: 3995194 (1976-11-01), Blacker, Jr. et al.
patent: 4124810 (1978-11-01), Bortfeld et al.
patent: 4168452 (1979-09-01), Christensen et al.
patent: 4317065 (1982-02-01), Hughes
patent: 4366415 (1982-12-01), Takenaka et al.
patent: 4368405 (1983-01-01), Takenaka et al.
patent: 4374341 (1983-02-01), Say
patent: 4429252 (1984-01-01), Vieland
patent: 4514661 (1985-04-01), Stone
Patent Abstracts of Japan, vol. 4, No. 28 (E1) (510), 8th Mar. 1980, p. 120E1; & JP-A 55 3105 (Hitachi Seisakusho K.K.), 10-01-1980.
Patent Abstracts of Japan, vol. 7, No. 239 (E-206) (1384), 25th Oct. 1983; JP-A-58-128 637 (Nippon Denki K.K.), 01-08-1983.
Kamohara Eiji
Takenaka Shigeo
Blum Theodore M.
Kabushiki Kaisha Toshiba
LandOfFree
Electron gun with large aperture auxiliary electrode does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electron gun with large aperture auxiliary electrode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron gun with large aperture auxiliary electrode will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-23697