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, 2011
Filed:
May. 29, 2007
Rie Tonomori, Nara, JP;
Masanori Higashi, Kyoto, JP;
Shunsuke Kakisaka, Osaka, JP;
Kazuo Takeda, Osaka, JP;
Rie Tonomori, Nara, JP;
Masanori Higashi, Kyoto, JP;
Shunsuke Kakisaka, Osaka, JP;
Kazuo Takeda, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
With regard to a metal vapor discharge lamp with a triple tube structure including a discharge tube, an inner tube, and an outer tube, misalignment of axes of the inner tube and the outer tube is prevented. The metal vapor discharge lamp () is composed of a discharge tube () having a pair of electrodes therein, an inner tube () having a pinch-sealed part () at an end thereof and hermitically housing the discharge tube therein, and an outer tube () housing the inner tube therein, and a base (). In a clearance between the inner tube and the outer tube, there disposed a restrain member () for restraining movement of the inner tube relative to the outer tube in a direction orthogonal to an axis of the metal vapor discharge lamp.