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. 16, 2016
Filed:
Jan. 27, 2015
Applicant:
Toshiba Lighting & Technology Corporation, Yokosuka, Kanagawa-ken, JP;
Inventors:
Assignee:
Toshiba Lighting & Technology Corporation, Yokosuka-shi, Kanagawa-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 5/16 (2006.01); H01K 1/32 (2006.01); H01K 5/00 (2006.01); H05B 3/00 (2006.01);
U.S. Cl.
CPC ...
H01K 1/325 (2013.01); H01K 5/00 (2013.01); H05B 3/0033 (2013.01);
Abstract
A lamp includes a bulb, a filament, a gas, and a reflective film. The filament is disposed in the interior of the bulb along the tube axis. The gas is filled in the interior of the bulb. The reflective film is formed on the outer circumferential surface of the bulb and reflects a light from the filament toward the interior of the bulb. Further, the reflective film may be formed by depositing a reflective film material containing TiO, SiO, and BaSOon the outer circumferential surface of the bulb.