Deflection unit for color television display tubes

Details Deflection unit for color television display tubes Deflection unit for color television display tubes

1979-02-02

1980-12-30

LaRoche, Eugene R.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

335210, 335213, H01F 300

Patent

active

042426120

ABSTRACT:
In a deflection unit for in-line color television display tubes, flux altering elements are provided between the field and line deflection coils, near the center of the field deflection coil, the flux altering means extending substantially parallel to the field deflection field. As a result of these measures, such a deflection unit combines a good astigmatism level with an acceptably small frame coma error and a reduced EW-frame distortion.

REFERENCES:
patent: 3162791 (1963-02-01), Gostyn
patent: 3849749 (1974-11-01), Kadota
patent: 4096462 (1978-06-01), Akatsu et al.
patent: 4143345 (1979-03-01), Barkow

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