Electron gun for color picture tube

Details Electron gun for color picture tube Electron gun for color picture tube

1985-07-29

1987-06-09

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313449, H01J 2962

Patent

active

046722610

ABSTRACT:
An inline electron gun for color picture tube comprises a main lens including a plurality of electrodes spaced apart to each other and each of these electrodes has a pheripheral rim. Two of these peripheral rims oppose to each other and at least one of the peripheral rims has such an uneven shape that focusing force for the electron beams is increased.

REFERENCES:
patent: 3678316 (1972-07-01), Barten
patent: 3922580 (1975-11-01), Hutter
patent: 4581560 (1986-04-01), Shirai et al.

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