Electrodeless high intensity discharge lamp having field symmetr

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Induction-type discharge device load

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315 39, 313234, H05B 4116

Patent

active

055459536

ABSTRACT:
An electrodeless high intensity discharge lamp includes an electrodeless lamp capsule, first and second electric field applicators positioned so that the lamp capsule is between the electric field applicators, and a planar transmission line. The planar transmission line couples high frequency power from an input to the first and second electric field applicators and has a gap with in which the lamp capsule is positioned. A field symmetrizing conductor, preferably a thin wire, is located in an open side of the gap and is electrically connected to the ground plane of the planar transmission line. The field symmetrizing conductor is positioned such that the electric field in the lamp capsule is substantially symmetrical with respect to the lamp axis and is substantially colinear with the lamp axis.

REFERENCES:
patent: 5070277 (1991-12-01), Lapatovich
patent: 5113121 (1992-05-01), Lapatovich et al.
patent: 5130612 (1992-07-01), Lapatovich et al.
patent: 5144206 (1992-09-01), Butler et al.
patent: 5241246 (1993-08-01), Lapatovich et al.
patent: 5280217 (1994-01-01), Lapatovich et al.

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