Excitation coil for hid electrodeless discharge lamp

Details Excitation coil for hid electrodeless discharge lamp Excitation coil for hid electrodeless discharge lamp

1987-12-28

1989-03-14

Moore, David K.

Electric lamp and discharge devices

With magnetic device

315344, H01J 150

Patent

active

048127027

ABSTRACT:
An excitation coil, for stimulating a high-intensity-discharge plasma in an electrodeless discharge lamp, has at least one turn of a conductor arranged generally upon the surface of a toroid with a rhomboid or V-shaped cross-section, which is substantially symmetrical about a plane passing through the maxima of the toroid. The major radius of the coil is such that the lamp is insertable into the coil so that the coil induces a co-planar toroid plasma discharge arc in the lamp, when the coil is connected to a radio frequency (RF) power source.

REFERENCES:
patent: 3763392 (1973-10-01), Hollister

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