Color display tube

Details Color display tube Color display tube

1985-11-25

1990-02-13

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

445 36, H01S 2948

Patent

active

049009800

ABSTRACT:
The astigmatism of the electron beams (6, 7, 8) generated by an electron gun system (5) are substantially reduced by constructing the lens electrode components (25, 26) between which a focusing lens is formed in an operating electron gun to be inverted replicas of each other. The lens electrode components should be provided with the corresponding sides (45, 46) facing each other and with the corresponding apertures (38, 42) opposite to each other.

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