Fluorescent indicator and method of making same

Details Fluorescent indicator and method of making same Fluorescent indicator and method of making same

1979-01-05

1981-03-31

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

29 2516, 316 18, H01J 6302, H01J 6306, H01J 932

Patent

active

042596130

ABSTRACT:
A fluorescent display has phosphor coated electrodes selectably electronically excited into an illuminated condition. A foraminous screen controls illumination of the electrodes. An embodiment of the invention with a linear array of anodes and an analog-to-digital power supply forms a linear scale indicator. A method of assembly is also disclosed.

REFERENCES:
patent: 3321657 (1967-05-01), Granitsas et al.
patent: 3327154 (1967-06-01), Bowerman
patent: 3418509 (1968-12-01), Frouws et al.
patent: 3465194 (1969-09-01), Hall
patent: 3604971 (1971-09-01), Tracy
patent: 3701918 (1972-10-01), Allen et al.
patent: 3735180 (1973-05-01), Coulon
patent: 3897614 (1975-08-01), Armstrong
patent: 4048538 (1977-09-01), Hendriks et al.

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