Dual action light bulb

Details Dual action light bulb Dual action light bulb

1991-08-27

1992-07-21

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313514, 313517, 313619, 362806, H01J 1700, H01J 6302

Patent

active

051325896

ABSTRACT:
A special effect light bulb combines both cathode glow illumination with fluorescent illumination. A pair of plates respectively electrically connected to a pair of electrical lead wires jointly define a word, phrase or well-known symbol which is illuminated within an inert gas during operation of the light bulb. A third plate, having a fluorescent coating which is activated only by the ionized inert gas, is shaped in the form of a distinct symbol.

REFERENCES:
patent: 1928407 (1933-09-01), Batchelor
patent: 2298581 (1942-10-01), Abadie
patent: 2520513 (1950-08-01), Sereno

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