Electron gun for a cathode ray tube

Details Electron gun for a cathode ray tube Electron gun for a cathode ray tube

1995-10-23

1998-06-30

Patel, Nimeshkumar

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313450, 313412, H01J 2962

Patent

active

057739250

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 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: 4243912 (1981-01-01), Bortfeld et al.
patent: 4853589 (1989-08-01), Vrijssen

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