The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2004
Filed:
Jan. 31, 2001
Takumi Yamane, Himeji, JP;
Takeo Matushima, Himeji, JP;
Kazuhiro Inaoka, Kakogawa, JP;
Kyosuke Fujina, Shiso-gun, JP;
Ushiodenki Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a long-lived short-arc type discharge lamp and light-source device in which high temperature oxidation of external lead rods is inhibited, a short-arc type discharge lamp of the type in which external lead rods ( ) are electrically connected to electrodes ( ) that extend from sealing tubes ( ) that are located at each of opposite ends of an emission envelope ( ), and in external lead rods are electrically connected via lead lines ( ) to bases ( ) that are attached to a respective sealing tube, by a first ventilation aperture ( ) being formed in a peripheral wall of each base and second ventilation aperture ( ) being formed in the tail end of at least one base. Ventilation-concentration hoods ( ) that conduct cooling air can be mounted at the first aperture. The lamp is held by fixing the periphery of each base in a lamp support plate ( ).