Junction target monoscope

Details Junction target monoscope Junction target monoscope

1974-01-10

1976-02-24

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Secondary emissive electrode

313366, 313410, H01J 3116, H01J 2945

Patent

active

039406520

ABSTRACT:
A signal display system having a visual display and a display signal generator in which a semiconductor junction target has a high conductivity P layer, a low conductivity N layer, and a surface layer of insulating material having holes in the shape of letters or other characters. The target semiconductor junction is reverse biased so that when an electron beam striking the target is scanned over the character apertures, it will produce carrier multiplication in the target and an output signal several orders of magnitude greater than a conventional monoscope. The same principle may be used for a camera pickup tube when beam electrons returning from a light sensitive target are multiplied on striking a reverse biased junction target.

REFERENCES:
patent: 2287415 (1942-06-01), Burnett
patent: 3126610 (1964-03-01), Kabell et al.
patent: 3289024 (1966-11-01), Haan et al.
patent: 3419746 (1968-12-01), Crowell et al.
patent: 3541383 (1970-11-01), Pruett et al.
patent: 3579012 (1971-05-01), Zwicker et al.

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