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:
Jun. 03, 2014
Filed:
Jun. 09, 2011
Applicant:
Makoto Yamazaki, Kanagawa-ken, JP;
Inventor:
Makoto Yamazaki, Kanagawa-ken, JP;
Assignee:
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21S 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one embodiment, a lighting apparatus includes a light source unit having light emitting units arranged in a longitudinal direction. A transparent cover member is formed in a substantially straight pipe shape and having openings at both ends for housing the light source unit along the longitudinal direction. The cover member has a higher thermal expansion coefficient than that of the light source unit. End plate members are fixed to the both ends of the light source unit and close the openings at the both ends of the cover member.