Short arc ultra-high pressure discharge lamp

Details Short arc ultra-high pressure discharge lamp Short arc ultra-high pressure discharge lamp

2005-09-06

2005-09-06

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S483000, C313S484000, C313S567000, C313S631000, C313S637000, C313S638000, C313S639000

Reexamination Certificate

active

06940217

ABSTRACT:
To devise an arrangement with relatively high pressure tightness, in a short-arc super-high pressure mercury lamp which is operated with an extremely high mercury vapor pressure, a light emitting part has a pair of opposed electrodes and is filled with at least 0.15 mg/mm3of mercury; and side tube parts extend from opposite sides of the light emitting part, and in which the electrodes are partially hermetically sealed and are each welded to a respective metal foil, in the areas in which the electrodes are welded to the metal foils, the electrodes are deformed in the direction perpendicular to the metal foils to a degree of deformation that is at most 10%.

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