Cathode ray tube comprising an electron gun having a plane-paral

Details Cathode ray tube comprising an electron gun having a plane-paral Cathode ray tube comprising an electron gun having a plane-paral

1992-02-20

1994-03-01

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313449, 313450, H01J 2962

Patent

active

052910954

ABSTRACT:
A cathode ray tube comprising an electron gun having two oppositely arranged conductor patterns. In operation, the electron beams (or electron beam) move between the conductor patterns. It has been found that the electron-optical functions, such as focusing and converging the electron beams, which are fulfilled by electrodes in a conventional gun can be fulfilled by two flat-conductor patterns. Said conductor patterns can be accurately manufactured and arranged relative to each other. This enables the manufacture of complicated lens systems.

REFERENCES:
patent: 3040205 (1962-06-01), Walker
patent: 3952227 (1976-04-01), Van Alphen
patent: 4028575 (1977-06-01), van Raalte
patent: 4086513 (1978-04-01), Evans, Jr.
patent: 4961022 (1990-10-01), Hellings et al.

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