Color cathode ray tube unit

Details Color cathode ray tube unit Color cathode ray tube unit

1990-10-09

1992-10-20

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

31536811, H01J 2970, H01J 2976

Patent

active

051573016

ABSTRACT:
A color cathode ray unit which includes an in-line type electron gun, a deflection yoke disposed on the color CRT so as to generate substantially uniform horizontal and vertical deflection magnetic fields, thereby ensuring that an axially unsymmetrical lens electric field is dynamically generated between a first and a second focusing grid thereby correcting a distortion of electron beams caused by a magnetic field leaking from a dynamic convergence means.

REFERENCES:
patent: 4319163 (1982-03-01), Chen
patent: 4725763 (1988-02-01), Okuyama et al.
patent: 4731563 (1988-03-01), Bloom et al.
patent: 4771216 (1988-09-01), Blacker et al.
patent: 4877998 (1989-10-01), Maninger et al.
patent: 4988926 (1991-01-01), Sluyterman et al.

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