Color cathode ray tube apparatus

Details Color cathode ray tube apparatus Color cathode ray tube apparatus

1989-09-27

1992-02-25

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

H01J 2951

Patent

active

050916734

ABSTRACT:
A color cathode ray tube apparatus is provided with an electron gun which has a common large-aperture electron lens on which three electron beams are incident. Since the electron gun has individual electron lenses for individual electron beams, the electron beams can be properly converged and focused on a screen. Thus, the apparatus enjoys a satisfactory picture characteristic.

REFERENCES:
patent: 4086513 (1978-04-01), Evans, Jr.
patent: 4406970 (1983-09-01), Hughes
patent: 4649318 (1987-03-01), Kikuchi et al.
patent: 4766344 (1988-08-01), Say
patent: 4870321 (1989-09-01), Kamohara

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