High-pressure metal vapor discharge lamp

Electric lamp and discharge devices – With gas or vapor – Having a particular total or partial pressure

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313623, 313 25, H01J 6130

Patent

active

059948396

ABSTRACT:
A high-pressure metal vapor discharge lamp of the present invention has a discharge tube made of a ceramic material having a transparent or translucent property, and the discharge tube has a main tube, and a first and a second disks for sealing the main tube. The first disk is disposed at one opening of said main tube, and the second disk disposed at the other opening of said main tube. Further, the first and the second disks have a cylindrical narrow tube. A lead-through-part for disposing either of a first and a second main electrodes and an auxiliary electrode in the main tube and a sealing member integrated with the lead-through-wire are inserted in the cylindrical narrow tube, and the sealing member is fixed to the cylindrical narrow tube so that the cylindrical narrow tube is sealed airtightly.

REFERENCES:
patent: 5424609 (1995-06-01), Geven et al.
patent: 5557169 (1996-09-01), Van Lierop et al.
patent: 5661367 (1997-08-01), Fellows et al.
patent: 5742124 (1998-04-01), Kees et al.
patent: 5866982 (1999-02-01), Scott et al.

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