Electrodeless low-pressure discharge lamp

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

1986-03-10

1988-03-01

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

313493, 315 57, 336175, H05B 4116, H05B 4124

Patent

active

047288671

ABSTRACT:
An electrodeless low-pressure discharge lamp comprising a glass lamp vessel (1) which is sealed in a gas-tight manner and is filled with a metal vapor and a rare gas, this lamp vessel being provided with a tubular protuberance (2) which accommodates a rod-shaped core (3) of magnetic material surrounded by a wire winding (4) connected to a high-frequency supply unit, by means of which during operation of the lamp an electrical discharge is maintained in the lamp vessel, the inner side of the lamp vessel being provided with a transparent conductive layer (10), which is electrically connected by means of a lead-through member (12) to a conductor, such as a metal rod (11) provided in the core (3), located outside the lamp vessel, this lead-through member (12) being located at the end of the tubular protuberance, and being electrically connected to the internal conductive layer, for example by means of a wire spring (15).

REFERENCES:
patent: 3521120 (1970-07-01), Anderson
patent: 3924223 (1975-12-01), Whyte et al.

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