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. 19, 2013
Filed:
Oct. 14, 2011
Dai Aoki, Tokyo, JP;
Makoto Ida, Tokyo, JP;
Shigehiro Kawaura, Tokyo, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Nippon Carbide Industries Co., Inc., Tokyo, JP;
Abstract
A light-emitting device includes a substrate, a plurality of light-emitting elements mounted on one surface of the substrate, a first glass film provided to one surface of the substrate and having a plurality of apertures that form a light-reflecting frame surrounding the perimeter of each the light-emitting elements, and a second glass film provided to the other surface of the substrate. A coefficient of thermal expansion of the second glass film is greater than that of the substrate when a coefficient of thermal expansion of the first glass film is greater than that of the substrate, and a coefficient of thermal expansion of the second glass film is less than that of the substrate when a coefficient of thermal expansion of the first glass film is less than that of the substrate.