Title:
DIELECTRIC BARRIER DISCHARGE LAMP
Document Type and Number:
Japanese Patent JP3125607
Kind Code:
B2
Abstract:
PURPOSE: To heighten radiation brightness, and simplify a structure by making the joining member of glass or ceramics and a light pickup window member of an In metal, and making the shortest distance of the joining member be a specified measure.
CONSTITUTION: The end portion 12 of an outside tube 3 is formed into an L shape in a cross section, and a light pickup member 9 is arranged airtightly at this portion using a joining member 7 made of In. The shortest distance between the end portion 12 of the outside pipe 3 filled with the joining member 7 and the light pickup member 9 is made to be a distance d1 between a part parallel with the light pickup window member 9 of the end portion 12 and the window member 9. The distance d1 is 0.1mm or more. The longest distance between the end portion 12 of the outside pipe 3 filled with the member 7 and the member 9 is made to be a distance d2 between a parallel part with the surface of the window 9 of the end portion 12 and the window member 9. The distance d2 is 2.0mm or less. Thereby, the joining portion can be close to discharge plasma.
Inventors:
Yasuo Ohnishi
Yasuhiko Wakahata
Hiromitsu Matsuno
Ryushi Igarashi
Yasuhiko Wakahata
Hiromitsu Matsuno
Ryushi Igarashi
Application Number:
JP29036894A
Publication Date:
January 22, 2001
Filing Date:
November 01, 1994
Export Citation:
Assignee:
Ushio, Inc.
International Classes:
H01J65/04; H01J65/00; (IPC1-7): H01J65/00
Domestic Patent References:
JP4229547A |