High-frequency fluorescent lamp

Details High-frequency fluorescent lamp High-frequency fluorescent lamp

1990-09-10

1991-08-27

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313631, 313493, 313643, 315246, H01J 6167, H01J 6130

Patent

active

050436279

ABSTRACT:
A high-frequency fluorescent lamp (10) that is energized by an electronic high-frequency ballast (50). The two ends of the lamp are hermetically sealed by a set of base assemblies (14). Each assembly consists of an end cap (16) and a non-thermionic, high-frequency radiating element (18) that includes an integral input power pin (20). The radiating elements function as cathode/antennas that operate within a pressurized noble gas environment without the need for mercury. Since there is no mercury to vaporize nor any thermionic emission, the lamps, upon the application of power, start immediately to emit a high-frequency signal. This signal directly bombards and excites the lamps phosphor coating which causes the phosphor to fluoresce and emit visible light.

REFERENCES:
patent: 1932025 (1933-10-01), Thomas
patent: 2216269 (1940-10-01), Holmes
patent: 2449113 (1948-09-01), Fruth
patent: 2709767 (1955-05-01), Germer
patent: 3189777 (1965-06-01), Hoeh
patent: 3430090 (1969-02-01), Vodoklys et al.
patent: 3444415 (1969-05-01), Skirvia
patent: 3536945 (1970-10-01), Skirvin
patent: 4122374 (1978-10-01), Studli
patent: 4272703 (1981-06-01), Eckberg
patent: 4347460 (1982-08-01), Latassa et al.

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