Color display tube wtih overlapping field lens having a field co

Details Color display tube wtih overlapping field lens having a field co Color display tube wtih overlapping field lens having a field co

1986-02-24

1987-05-26

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313449, H01J 2962

Patent

active

046688927

ABSTRACT:
A color display tube has an electron gun system (5) with focusing lens electrodes (25, 26) producing overlapping lens fields. Correction of the overlapping lens fields is accomplished by means of at least one field correction plate (35, 36) which extends substantially perpendicularly to the beam axes and has elongate and/or square apertures (38, 39, 40) through which the electron beams pass.

REFERENCES:
patent: 4406970 (1983-09-01), Hughes
patent: 4581560 (1986-04-01), Shirai et al.
Hosokoshi et al, IEEE Transactions on Consumer Electronics, vol. CE-26, Aug. 1980, pp. 452-458.

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