Metal vapor discharge lamp

Details Metal vapor discharge lamp Metal vapor discharge lamp

2005-03-01

2005-03-01

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

C313S639000

Reexamination Certificate

active

06861808

ABSTRACT:
A metal vapor discharge lamp has an arc tube in which mercury, a rare gas, and at least one luminous metal are enclosed, and an outer tube in which a nitrogen gas is enclosed and which covers the arc tube. The metal members which are provided in the outer tube and which include wiring for supplying power to the arc tube will not react with one of nitrogen and a nitrogen compound in the nitrogen gas atmosphere in the outer tube when the temperature exceeds 350° C. in a steady-state illumination. The use of a metal member such as stainless steel will increase the life of the discharge lamp.

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