Electric lamp and discharge devices – With gas or vapor – Having a particular total or partial pressure
Patent
1996-02-01
1998-10-06
O'Shea, Sandra L.
Electric lamp and discharge devices
With gas or vapor
Having a particular total or partial pressure
313568, 313484, 313637, H01J 1720, H01J 6112, H01J 162, H01J 6304
Patent
active
058181679
ABSTRACT:
An electrodeless high intensity discharge lamp including a sealed light-transmissive envelope, a volatilizable chemical fill and an inert gas or nitrogen within the envelope. The chemical fill includes as a primary active component phosphorus or a volatilizable compound of phosphorus. The inert gas or nitrogen is at a pressure of less than 760 torr at ambient temperature, and assists in starting the lamp. Sufficient mercury may be added to the lamp fill to improve resistive heating, but addition of mercury is not required for emission. Sulfur, a sulfur compound, or a metal halide may be added to the fill as a secondary active component. The lamp envelope is coupled to a high frequency power source to produce a light emitting plasma discharge within the envelope.
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Bochinski Jason R.
Butler Scott J.
Lapatovich Walter P.
Haynes Mack
Meyer William E.
O'Shea Sandra L.
Osram Sylvania Inc.
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