High power mercury lamp of the short arc type with specific cath

Details High power mercury lamp of the short arc type with specific cath High power mercury lamp of the short arc type with specific cath

1996-06-26

1998-10-06

Patidar, Jay M.

Electric lamp and discharge devices

With gas or vapor

Having particular electrode structure

313574, 313632, 313571, H01J 6104

Patent

active

058181695

ABSTRACT:
A lamp in which a stable, long-term luminous operation can be accomplished is achieved by the fact that, in a mercury lamp of the short arc type in which a cathode and an anode located next to one another within an arc tube and in which both ends of the arc tube are provided with hermetically sealed portions, the cathode is installed on the tip of a rod-shaped component which extends from a respective one of the hermetically sealed portions, the cathode having a greater outer diameter than the rod-shaped component on which it is installed, and the rear end of the cathode tapering toward the respective hermetically sealed portion.

REFERENCES:
patent: 3517248 (1970-06-01), Eckel
patent: 4799135 (1989-01-01), Inukai et al.
patent: 4988918 (1991-01-01), Mori et al.
patent: 5258691 (1993-11-01), Dakin et al.
patent: 5539273 (1996-07-01), Sims

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