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:
Feb. 28, 2012
Filed:
Jun. 19, 2008
Masahiro Yamamoto, Takatsuki, JP;
Syunsuke Ono, Takatsuki, JP;
Minoru Ozasa, Kyoto, JP;
Tsuyoshi Ichibakase, Takatsuki, JP;
Tomoyuki Seki, Takatsuki, JP;
Takashi Tsutatani, Otsu, JP;
Haruo Nagai, Kyoto, JP;
Masahiro Yamamoto, Takatsuki, JP;
Syunsuke Ono, Takatsuki, JP;
Minoru Ozasa, Kyoto, JP;
Tsuyoshi Ichibakase, Takatsuki, JP;
Tomoyuki Seki, Takatsuki, JP;
Takashi Tsutatani, Otsu, JP;
Haruo Nagai, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a high-pressure discharge lamp that includes a bulb formed from a light emitting part having a discharge space therein and a pair of sealing parts connected to the light emitting part, and an electrode pair disposed within the discharge space, a section of a proximity conductor is wound substantially spirally around one of the sealing parts within a predetermined range from the light emitting part, while the remaining section of the proximity conductor crosses over the light emitting part and is electrically connected to the electrode nearer the other sealing part. By initiating a discharge after applying a high-frequency voltage of 1 kHz to 1 MHz to a high-pressure mercury lamp having this structure, the breakdown voltage can be suppressed to at least 8 kV.