Magnetic fine deflection system comprising sheet conductors

Details Magnetic fine deflection system comprising sheet conductors Magnetic fine deflection system comprising sheet conductors

1978-12-22

1980-09-23

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313440, H01J 2964, H01J 2966

Patent

active

042245524

ABSTRACT:
An improved magnetic fine deflection system, for use in an electron beam optical system of the type having a single plate matrix lens, utilizes an orthogonal set of stacked deflection-field-generating conductors, with one stacked orthogonal pair of sheet conductors being positioned behind a target, upon which the electron beam is to be focused and deflected, and with a second orthogonal pair of sheet conductors positioned in front of the multi-apertured single plate matrix lens and having apertures in registration with the lenslets. The improved magnetic fine deflection system is utilized in an electron beam optical system having first means for forming a narrow beam of electrons and coarse deflection means associated with the first means for scanning the electron beam to each lenslet of the single plate matrix lens, for passage therethrough and into the magnetic fine deflection field.

REFERENCES:
patent: 3936693 (1976-02-01), Parks et al.
patent: 4070597 (1978-01-01), Hughes et al.
patent: 4097745 (1978-06-01), Parks
patent: 4122369 (1978-10-01), Hughes et al.

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