Adjusting device for color cathode ray tube

Details Adjusting device for color cathode ray tube Adjusting device for color cathode ray tube

1979-06-13

1981-10-13

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Electron or ion beam deflecting type

335284, H01F 100

Patent

active

042951100

ABSTRACT:
A barium ferrite layer is disposed around an external surface of neck portion of a color cathode ray tube to have a magnetic easy axis radially of the longitudinal axis of the neck portion. An electromagnet is revolved around the layer to magnetically charge it so as to correct static convergence and color purity of three electron beams generated in the color cathode ray tube.

REFERENCES:
patent: 3098942 (1963-07-01), Reiches
patent: 4105983 (1978-08-01), Barten et al.
patent: 4138628 (1979-02-01), Smith
patent: 4152684 (1979-05-01), Heijnemans et al.
patent: 4159456 (1979-06-01), Smith
patent: 4162470 (1979-07-01), Smith
"30AX: Self-Aligning Self-Converging High-Definition 110.degree. Colour TV Display," Philips Company Technical Note 076.

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