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. 18, 2011
Filed:
Apr. 06, 2009
Nobuhiro Nakamura, Tokyo, JP;
Minoru Sekine, Tokyo, JP;
Syuji Matsumoto, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A glass-coated light-emitting elementof the invention has a semiconductor light-emitting elementhaving a surface on which no electrode is formed is coated with a glass, in which a surface of the glassconstitutes a part of a spherical surface broader than a hemispherical surface, the refractive index of the glassat an emission peak wavelength of the semiconductor light-emitting elementis 1.7 or more, and the ratio of the diameter of the above-mentioned spherical surface to the maximum diameter of a surface of the semiconductor light-emitting elementon which electrodes are formed is 1.8 to 3.5, whereby light emitted from the light-emitting element can be efficiently introduced into a light control unit, and alignment with a lens or a light pipe, which has hitherto been made, becomes unnecessary.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile