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:
Jul. 26, 2011
Filed:
May. 29, 2006
Yoshio Manabe, Osaka, JP;
Fumihiro Inagaki, Kyoto, JP;
Shogo Toda, Osaka, JP;
Masaaki Hama, Kyoto, JP;
Yoshio Manabe, Osaka, JP;
Fumihiro Inagaki, Kyoto, JP;
Shogo Toda, Osaka, JP;
Masaaki Hama, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A fluorescent lamp according to the present invention includes: a glass tubein which mercury and a rare gas are enclosed; a protective filmthat is attached so as to cover an inner face of the glass tube; and a phosphor layerthat is laminated on the protective film. The protective filmhas a thickness of 0.5 μm to 3 μm. Further, the protective filmis formed of inorganic particles and has a volume ratio of 0.1 to 0.5. Preferably, the inorganic particles are of at least one selected from the group consisting of aluminum oxide, silicon dioxide, magnesium oxide, zinc oxide, titanium oxide, cerium oxide, yttrium oxide, and calcium halophosphate.