Electrodeless low-pressure discharge lamp

Details Electrodeless low-pressure discharge lamp Electrodeless low-pressure discharge lamp

1986-03-10

1988-02-23

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

313493, 315 57, H05B 4116, H05B 4124

Patent

active

047272945

ABSTRACT:
An electrodeless low-pressure discharge lamp comprising a lamp vessel (1) which is sealed in a vacuum-tight manner and is filled with a metal vapor (for example mercury) and a rare gas, this lamp being provided with a core (4) of magnetic material (for example ferrite), while during operation of the lamp, and electric field is produced in the lamp vessel by means of a winding arranged to surround this core and a high-frequency supply unit connected thereto, the lamp vessel further being provided with an internal transparent conductive layer (11) and an external conductive layer (12), which during operation of the lamp is connected to one of the mains conductors and which together with the internal conductive layer (11) forms a capacitor.

REFERENCES:
patent: 3521120 (1970-07-01), Anderson
patent: 4266167 (1981-05-01), Proud et al.
patent: 4568859 (1986-02-01), Houkes et al.
patent: 4571526 (1986-02-01), Wesselink

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