Image display apparatus with means for correcting image distorti

Details Image display apparatus with means for correcting image distorti Image display apparatus with means for correcting image distorti

1988-05-10

1990-01-02

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313413, 313432, 313434, 313437, 313439, H01J 2974

Patent

active

048915521

ABSTRACT:
An image display apparatus for displaying images on a fluorescent screen comprising plural linear cathodes, an electron beam extraction electrode with plural apertures and vertical deflection electrodes which are formed by segments. The respective segments of the vertical deflection electrodes have various shapes, and deflection voltages applied to the respective segments can be varied so that distortion of the displayed images on the fluorescent screen may be corrected.

REFERENCES:
patent: 2076086 (1937-04-01), Ladner
patent: 2921227 (1960-01-01), Mackay
patent: 3551732 (1970-12-01), Urano
patent: 4131823 (1978-12-01), Credelle
patent: 4227177 (1985-04-01), Watanabe et al.
patent: 4451852 (1984-05-01), Masuda et al.
patent: 4525653 (1985-06-01), Smith
patent: 4642517 (1987-01-01), Kanehisa

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