Fluorescent character indicating tube

Details Fluorescent character indicating tube Fluorescent character indicating tube

1976-06-18

1977-08-30

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313217, H01J 172, H01J 6306

Patent

active

040457028

ABSTRACT:
A fluorescent character-indicating tube wherein a plurality of coplanar anode elements are arranged on a base plate in a predetermined form so as to indicate some indicia and at least one elongate filament for generating electrons to the anode elements.
The anode element comprises an anode electrode segment and a phosphor segment. The anode electrodes are printed on the base plate. The phosphor material is disposed on the entire surfaces of the anode electrode segment by a process of electrodeposition.

REFERENCES:
patent: 3589789 (1971-06-01), Hubert et al.
patent: 3786295 (1974-01-01), Fujii et al.
patent: 3787940 (1974-01-01), Kupsky
patent: 3906269 (1975-09-01), Tanji

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