In-line type electron gun structure for color picture tubes

Details In-line type electron gun structure for color picture tubes In-line type electron gun structure for color picture tubes

1979-03-29

1980-12-23

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313414, 313453, H01J 2950, H01J 2956, H01J 2976

Patent

active

042412757

ABSTRACT:
In an in line type electron gun structure for a color picture tube wherein electron guns are arranged in line, the electron-beam-pass apertures of at least one set of corresponding electrodes of the respective electron guns for forming pre-focus lens are made rectangular having corners in the directions of the horizontal and vertical deflection magnetic fields.

REFERENCES:
patent: 3603839 (1971-09-01), Takayanagi
patent: 3852608 (1974-12-01), Johanns et al.
patent: 3881136 (1975-04-01), Scheele
patent: 3919583 (1975-11-01), Hasker et al.
patent: 3952224 (1976-04-01), Evans, Jr.

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