Electrodeless metal vapor discharge lamp with minimized electric

Details Electrodeless metal vapor discharge lamp with minimized electric Electrodeless metal vapor discharge lamp with minimized electric

1984-08-21

1987-11-03

Moore, David K.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315 39, 315344, 315 85, 313493, 313486, 313488, 313485, H05B 4116

Patent

active

047045620

ABSTRACT:
An electrodeless metal vapor discharge lamp comprising a lamp vessel (1) which is sealed in a vacuum-tight manner and is further filled with a rare gas, which lamp is provided with a core (4) of magnetic material, in which a high-frequency magnetic field can be induced by means of an electric supply unit (7) and a winding (5) arranged to surround the core, an electric field being produced in the lamp vessel (1), the surface area of a cross-section orthogonal to the axis of the winding lying between 20 mm.sup.2 and 60 mm.sup.2, the lamp vessel (1) containing as rare gas krypton and/or argon at a pressure of at most 100 Pa, and the axial length of the winding lying between 8 and 15 mm.

REFERENCES:
patent: 3227923 (1966-01-01), Marrison
patent: 3521120 (1970-07-01), Anderson
patent: 3987335 (1976-10-01), Anderson
patent: 4119889 (1978-10-01), Hollister
patent: 4187447 (1980-02-01), Stout et al.
patent: 4206387 (1980-06-01), Kramer et al.
patent: 4240010 (1980-12-01), Buhrer
patent: 4254363 (1981-03-01), Walsh
patent: 4262233 (1981-04-01), Becker et al.
patent: 4422017 (1983-12-01), Denneman et al.
patent: 4568859 (1986-02-01), Houkes et al.

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