Rectangular beam laminar flow electron gun

Details Rectangular beam laminar flow electron gun Rectangular beam laminar flow electron gun

1974-12-20

1976-09-14

Wilbur, Maynard R.

Electric lamp and discharge devices

Cathode ray tube

Ray generating or control

315 15, H01J 2946

Patent

active

039809196

ABSTRACT:
A laminar flow electron gun employing a narrow, elongated cathode for forming a rectangular beam and a plurality of electrodes having narrow, elongated apertures cooperating with said cathode to draw electrons from said cathode and operate on the electrons to focus the rectangular beam onto a target by providing a parallel flow region adjacent said cathode, followed by a divergent flow region, in turn, followed by a convergent flow or focusing region.

REFERENCES:
patent: 2817033 (1957-12-01), Brewer
patent: 2866126 (1958-12-01), Skellett
patent: 2999182 (1961-09-01), Field
patent: 3202864 (1965-08-01), Crowell
patent: 3740607 (1973-06-01), Silzars et al.
patent: 3881136 (1975-04-01), Scheele

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