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:
Aug. 02, 2005
Filed:
Nov. 19, 2003
Yoshitaka Kanzaki, Himeji, JP;
Toyohiko Kumada, Himeji, JP;
Katsuhiko Miyahra, Himeji, JP;
Ushiodenki Kabushiki Kaisha, Tokyo, JP;
Abstract
To form side tubes with adequate resistance to pressure, and to provide a short-arc, ultra-high-pressure discharge lamp having such side tubes, and to provide a method of manufacturing such a lamp, a short-arc, ultra-high-pressure discharge lamp () has a luminescent tube () within which a pair of electrodes () face each other, and side tubes () that extend from opposite sides of the luminescent tube and in which a portion of the electrodes is sealed and in which a small space (B) is formed to enable the electrodes () to expand and contract freely without compression along their axes due to a difference in the indices of expansion of the materials that make up the electrodes () and the side tubes ().