Method of operating a storage tube

Details Method of operating a storage tube Method of operating a storage tube

1974-08-30

1976-10-05

Farley, Richard A.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

With secondary emission stage in the cathode-ray tube

315 13ST, H01J 3158, H01J 2941

Patent

active

039847241

ABSTRACT:
An erasing process is accomplished by scanning a target with an unmodulated electron beam under the condition of secondary electron emission ratio of the target (.delta.) above a unit value. Then a writing process is carried out by scanning the target with a modulated electron beam under the condition .delta. < 1, and finally a reading process is achieved by scanning the target with an unmodulated electron beam also under the condition .delta. < 1.

REFERENCES:
patent: 2687492 (1954-08-01), Szegho et al.
patent: 2781473 (1957-02-01), Covely et al.
patent: 2896110 (1959-07-01), Hansen
patent: 3748585 (1973-07-01), Culter et al.

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