Electric lamp and discharge devices – With gas or vapor – Having electrode lead-in or electrode support sealed to...
Reexamination Certificate
2005-10-11
2005-10-11
Patel, Vip (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
Having electrode lead-in or electrode support sealed to...
C313S624000, C313S625000
Reexamination Certificate
active
06954032
ABSTRACT:
A discharge lamp of the short arc type with high arc stability in which the arc is prevented from fluctuating during operation is achieved by providing a short arc discharge lamp in which the hermetically sealed tubes which extend from the arc tube, and the lead pins located within the arc tube which support the electrodes, are sealed relative to one another by graded glass, and wherein cylindrical retaining bodies are attached concentrically within the hermetically sealed tubes and are penetrated by the lead pins, a metal foil that has several cambers which extend in the axial direction of the lamp being located between the cylindrical retaining bodies and the lead pins.
REFERENCES:
patent: 5200669 (1993-04-01), Dixon et al.
patent: 6356018 (2002-03-01), Higashimoto et al.
Nixon & Peabody LLP
Patel Vip
Safran David S.
Ushiodenki Kabushiki Kaisha
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