Electric lamp and discharge devices – Cathode ray tube – Ray generating or control
Patent
1992-05-11
1994-07-26
Yusko, Donald J.
Electric lamp and discharge devices
Cathode ray tube
Ray generating or control
313449, 313414, 313299, 313300, H01J 2946, H01J 146
Patent
active
053329457
ABSTRACT:
A Pierce electron gun is provided having a cathode, a focusing electrode surrounding the cathode, and an anode disposed a fixed distance from the cathode and having an opening therethrough. The electron gun has at least one grading electrode disposed between the focusing electrode and the anode. The grading electrode controls shape of equipotential lines of an electric potential difference provided between the anode and the cathode, to purposely reduce field gradient levels formed by the electric potential difference. The grading electrode further has a double radial bend having an inner radial curve of a first radius and an outer radial curve of a second radius.
REFERENCES:
patent: 3697795 (1972-10-01), Braun et al.
patent: 3852633 (1974-12-01), Hunter
patent: 3886399 (1975-05-01), Symons
patent: 3903450 (1975-09-01), Forbess et al.
patent: 3906280 (1975-09-01), Andelfinger et al.
patent: 4023061 (1977-05-01), Berwick et al.
patent: 4145635 (1979-03-01), Tuck
patent: 4553064 (1985-11-01), Amboss
patent: 4583021 (1986-04-01), Herriott et al.
patent: 4593230 (1986-06-01), True
patent: 4737680 (1988-04-01), True et al.
patent: 4780684 (1988-10-01), Kosmahl
Design of Electron Sources and Beam Transport Systems for Very High Power Microwaves Tubes; R. b. True; Litton Systems, Electron Devices Division, San Carlos, Calif. 94070, Jun. 10-15, 1990.
Esserman Matthew J.
Litton Systems Inc.
Yusko Donald J.
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