Color display tube

Details Color display tube Color display tube

1982-04-21

1985-02-12

Boudreau, Leo H.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

445 34, 445 36, H01J 2950, H01J 2982

Patent

active

044994028

ABSTRACT:
An electron gun system for a three beam color display tube. Slot-shaped openings are provided in the sides of cup-shaped focusing electrodes of the system to facilitate alignment during assembly. The electrodes are stacked on a jig having a pin passing through central electron beam apertures of the respective electrodes. Arms having V-shaped ends are then passed through the slot-shaped openings until they engage collars of the electrodes which define the apertures in the respective electrodes.

REFERENCES:
patent: 3771002 (1973-11-01), Standaart
patent: 3906279 (1975-09-01), Linssen
patent: 4366419 (1982-12-01), Barten

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