Method of manufacturing an electron gun for a cathode ray tube

Details Method of manufacturing an electron gun for a cathode ray tube Method of manufacturing an electron gun for a cathode ray tube

1997-04-16

1999-04-20

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

H01J 918

Patent

active

058953035

ABSTRACT:
An electron gun comprising at least one cathode for emitting electrons, a cylindrical device, a first electrode layer provided on the cathode side of inner surface of the cylindrical device, a second electrode layer provided on a panel side of inner surface of the cylindrical device, and a third electrode layer provided between the first electrode layer and the second electrode layer, a ratio of a gap between the second electrode and the third electrode to a gap between the first electrode and the third electrode being defined more than 1, wherein the ratio of the gap between the second electrode and the third electrode to the gap between the first electrode and the third electrode is 1:1 to 2, the cylindrical device is made of ceramic, and further comprising at least one resistive layer provided on the inner surface of the cylindrical device, and at least one conductive layer provided between the adjacent electrode layers.

REFERENCES:
patent: 3417448 (1968-12-01), Kelley
patent: 5489229 (1996-02-01), Muti et al.

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