Electrodeless high intensity discharge lamps

Details Electrodeless high intensity discharge lamps Electrodeless high intensity discharge lamps

1998-08-28

1999-09-14

Patel, Nimeshkumar D.

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313493, 313607, 313 44, 313 46, 313635, 313489, 315248, H01J 1716

Patent

active

059527846

ABSTRACT:
An electrodeless high intensity discharge lamp includes a light-transmissive arc tube for containing a plasma arc discharge, the arc tube having a top and a bottom and a side wall with a fill disposed therein. The fill includes at least one metal halide and a buffer gas. The arc tube has a wall with an interior surface having an annular region around the central extent of the side wall. The interior surface of the arc tube wall is smooth over the majority of its extent but has a liquid-stabilizing roughened surface in the annular region.

REFERENCES:
patent: 4810938 (1989-03-01), Johnson et al.
patent: 5032757 (1991-07-01), Witting
patent: 5032762 (1991-07-01), Spacil et al.
patent: 5042139 (1991-08-01), Farrall
patent: 5098326 (1992-03-01), Gorczyca et al.
patent: 5136214 (1992-08-01), Roberts et al.
patent: 5270615 (1993-12-01), Chang
patent: 5343118 (1994-08-01), Chang
patent: 5373216 (1994-12-01), Dakin et al.

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