Electrodeless fluorescent lamp bulb RF power energized through m

Details Electrodeless fluorescent lamp bulb RF power energized through m Electrodeless fluorescent lamp bulb RF power energized through m

1975-12-18

1976-10-19

Smith, Alfred E.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

313491, 313493, 315248, 315276, 315348, 315 57, H05B 4124

Patent

active

039873358

ABSTRACT:
An induction-ionized, electrodeless fluorescent lamp comprises a phosphor coated, globular envelope. An ionizable gas is contained in the envelope to produce radiation which excites the phosphor to produce light. A closed loop, magnetic core lying partially within and partially without the envelope couples radio frequency energy into the gas to produce ionization. The core may be bonded to a metal strap or enclosed in a metal container to improve heat transfer from the surrounding air. Primary windings and heat radiators are attached to the core outside the lamp envelope thereby eliminating the feed-through structures of other lamp embodiments.
A radio frequency power supply and lamp base plug are attached to the envelope providing a lamp which is physically and electrically compatible with existing incandescent-type lamp equipment.

REFERENCES:
patent: 966204 (1910-08-01), Hewitt
patent: 2030957 (1936-02-01), Bethenod et al.
patent: 2118452 (1938-05-01), Le Bel
patent: 3500118 (1970-03-01), Anderson
patent: 3521120 (1970-07-01), Anderson
patent: 3551742 (1970-12-01), Gruzdev et al.
patent: 3611009 (1971-10-01), McNeil

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