Electron gun in which the large diameter portion of the first an

Details Electron gun in which the large diameter portion of the first an Electron gun in which the large diameter portion of the first an

1986-05-28

1988-03-01

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

313457, H01J 2982

Patent

active

047288469

ABSTRACT:
A bipotential electron gun for cathode ray tubes comprising an arrangement of a cathode, a control electrode, and an accelerating electrode, a first anode and a second anode such that the second anode is formed with windows in its large diameter cylindrical portion and the large diameter end portion of the first anode is mounted within the large diameter cylindrical portion and is fixedly supported by an insulating support member that extends through the windows such that the first anode is firmly supported and coaxially mounted between the first anode and the second anode which form the principal lens in a secure manner.

REFERENCES:
patent: 2991390 (1961-07-01), Shrader
patent: 3142775 (1964-07-01), Shaw
patent: 4271374 (1981-06-01), Kimura

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