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:
Jan. 31, 2006
Filed:
Feb. 25, 2004
Naotaka Hashimoto, Takatsuki, JP;
Taku Ikeda, Katano, JP;
Ichiro Shibagaki, Nishiwaki, JP;
Ichiro Takeuchi, Akashi, JP;
Naotaka Hashimoto, Takatsuki, JP;
Taku Ikeda, Katano, JP;
Ichiro Shibagaki, Nishiwaki, JP;
Ichiro Takeuchi, Akashi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A halogen lamp of a 12V type including: a glass part, a portion of which is a light emitting portion having a space therein and the rest of which is a sealing portion, both portions being made of quartz glass; an infrared reflective coating formed to cover an outer surface of the glass part; a filament which, supported by the sealing portion, is provided in the inner space of the light emitting portion; a molybdenum foil which is embedded in the sealing portion and is electrically connected to the filament; and a power supply line, one end of which is connected to the molybdenum foil, the other end exposed to outside. The halogen lamp satisfies 450 mm≦Sb≦650 mmand Se≧−0.35Sb+520, where Sb and Se designate outer surface areas of the light emitting portion and the sealing portion, respectively.