Multibeam electron gun with composite electrode having plurality

Details Multibeam electron gun with composite electrode having plurality Multibeam electron gun with composite electrode having plurality

1982-04-02

1985-02-19

Demeo, Palmer

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313447, H01J 2946, H01J 2950

Patent

active

045008086

ABSTRACT:
A multibeam electron gun comprising two spaced successive electrodes individually held in position from a common support. One electrode comprises a single metal first plate having at least three electron-beam-defining first apertures therein. The other electrode is a composite structure comprising (a) a single metal second plate having a window therein opposite each of said first apertures and (b) a separate metal third plate attached to said second plate closing each of the windows. The third plate has a single electron-beam-defining second aperture therein separately aligned with one of the first apertures.

REFERENCES:
patent: 3524235 (1970-08-01), Burdick
patent: 3777210 (1973-12-01), Spalding
patent: 3906279 (1975-09-01), Linssen
patent: 4234814 (1980-11-01), Chen et al.
patent: 4298818 (1981-11-01), McCandless
patent: 4366414 (1982-12-01), Hatayama et al.
patent: 4443736 (1984-04-01), Chen

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