Method and device for heating the electrodes of an electron gun

Details Method and device for heating the electrodes of an electron gun Method and device for heating the electrodes of an electron gun

1986-06-18

1987-08-18

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Including use of electric arc or current for removing an...

H01J 939, H01J 944

Patent

active

046874542

ABSTRACT:
Method for heating the first electrodes of electrostatic lenses of the bi-potential type of an electron gun forming part of a cathode ray tube, this heating being performed during manufacture of the tube and wherein the first electrodes of the two lenses are brought to a same potential and the second electrodes are also brought to a same potential but at a value different from that of the first one and the electrons produced by the gun are used for heating the first electrode of each lens at its end adjacent to the second electrode of this same lens.

REFERENCES:
patent: 4392834 (1983-07-01), Smith
patent: 4395242 (1983-07-01), Liller et al.
patent: 4395243 (1983-07-01), Toyama et al.
patent: 4406637 (1983-09-01), Hernqvist
patent: 4410310 (1983-10-01), Halbrook
patent: 4515569 (1985-05-01), Hernqvist
Patent Abstract of Japan, vol. 7, No. 62 (E-164) [1207] Mar. 15, 1983.

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