Color display tube having a deflection device and deflection dev

Details Color display tube having a deflection device and deflection dev Color display tube having a deflection device and deflection dev

1981-07-10

1984-02-14

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313440, 335212, H01J 2976, H01F 100

Patent

active

044319401

ABSTRACT:
In a television deflection device which is mounted on a color cathode ray tube, a frustoconical supporting member (3) has a pair of coil halves (6) and (7) which form horizontal deflection coils halves. These coils have longitudinal portions (11, 12, 14 and 15) which extend to the front and the rear of the supporting member (3), an elongate tapered spacer (17) and (18) being inserted in the spaces between adjacent longitudinal portions of these coils. Movements of the spacers (17) and (18) adjust the space between the longitudinal portions which provides mechanical means for correcting for asymmetries in the display device.

REFERENCES:
patent: 3165677 (1965-01-01), Gostyn et al.
patent: 3287605 (1966-11-01), McGlashan
patent: 4200851 (1980-04-01), Nieuwendijk et al.

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