Magnetic deflection apparatus positioned behind target

Details Magnetic deflection apparatus positioned behind target Magnetic deflection apparatus positioned behind target

1977-10-04

1978-10-24

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313431, 335210, H01J 2972, H01J 2980

Patent

active

041223691

ABSTRACT:
An improved fine deflection, for use in an electron beam optical system, utilizes a magnetic deflector positioned adjacent to the surface of the target most remote from a matrix lens, which is positioned between the target and an electron beam emitter. The matrix lens is a single plate having multiple apertures forming matrix lenslets and has an electron beam accelerator positioned between the lens and the target for uniform acceleration of the electron beam passing through a selected one of the lenslets.

REFERENCES:
patent: 3821582 (1974-06-01), Hughes

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