Fluorescent discharge cold cathode for an image display device

Details Fluorescent discharge cold cathode for an image display device Fluorescent discharge cold cathode for an image display device

1975-11-28

1977-06-14

Strecker, Gerard R.

Electric lamp and discharge devices

Geiger-mueller type

313105R, 313400, 313422, H01J 3906, H01J 3148, H01J 4310

Patent

active

040299848

ABSTRACT:
A cathodoluminescent image display device utilizes a cold cathode as the source of electrons. The cold cathode comprises a photocathode, an electron multiplier and a fluorescent anode. The structure of the cathode is such that a portion of the light given off by the fluorescent anode is free to feedback and impinge upon the photocathode. The cold cathode disclosed herein is thus a closed loop device having a loop gain G. The electron multiplier has a gain G.sub.m such that the loop gain G of the device is maintained at a value greater than or equal to one thus causing a sustained electron discharge.

REFERENCES:
patent: 1724298 (1929-08-01), Miller
patent: 2316772 (1943-04-01), Dench
patent: 2754428 (1956-07-01), Franks et al.
patent: 3415990 (1968-12-01), Watson
patent: 3735184 (1973-05-01), Maeda
patent: 3784831 (1974-01-01), Reif
patent: 3825922 (1974-07-01), Ralph
patent: 3904923 (1975-09-01), Schwartz
patent: 3939374 (1976-02-01), Schagen et al.

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