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:
Nov. 07, 2006
Filed:
Mar. 25, 2003
Tatsuhiro Yabuki, Takatsuki, JP;
Noriyuki Uchida, Hirakata, JP;
Shiro Iida, Kyoto, JP;
Kenji Nakano, Kyoto, JP;
Tatsuhiro Yabuki, Takatsuki, JP;
Noriyuki Uchida, Hirakata, JP;
Shiro Iida, Kyoto, JP;
Kenji Nakano, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A diffuser is formed on an inner surface of a globe included in a compact self-ballasted fluorescent lamp, and a diffuse transmittance of the diffuser τ is set at 95%. When designing dimensions of the compact self-ballasted fluorescent lamp, at the same time, a ratio D/Pis set at 0.8 or greater. Here, Pis a helical pitch of an arc tube having a helical configuration, and Dis a half of a difference between a helix diameter of the arc tube and a maximum outside diameter of the globe.