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:
Apr. 08, 2014
Filed:
Jul. 06, 2011
Syunsuke Ono, Osaka, JP;
Masahiro Yamamoto, Osaka, JP;
Hiroki Ogawa, Osaka, JP;
Kazuyuki Okano, Nara, JP;
Syunsuke Ono, Osaka, JP;
Masahiro Yamamoto, Osaka, JP;
Hiroki Ogawa, Osaka, JP;
Kazuyuki Okano, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides a high pressure discharge lamp with a start-up assist member, a lamp unit, and a lamp system that reduce breakdown voltage and provide high design flexibility by reducing restriction on a position of an adjacent conductor. In a high pressure discharge lamp () of a lamp unit (), a dielectric member () is on the outer surface of a first sealing part (). The dielectric member () made of a titanium compound has relative permittivity higher than that of fused quartz. An upstream end of a metal wire () is connected to an external lead wire () projecting from a second sealing part (). A downstream end (A) is in contact with the dielectric member (). Upon lighting of the lamp, a corona discharge occurs at the point where the end () is in contact with the dielectric member () so that breakdown voltage is reduced.