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:
Aug. 26, 2014
Filed:
Feb. 01, 2013
Panasonic Corporation, Osaka, JP;
Hiroshi Ohno, Osaka, JP;
Panasonic Corporation, Kadoma-Shi, Osaka, JP;
Abstract
A semiconductor light emitting device includes a multilayer structure formed on a substrate and including a plurality of semiconductor layers including a light-emitting layer. The multilayer structure includes an optical waveguide having ridge structure provided at an upper part of the multilayer structure. The optical waveguide extends from a front facet to a rear facet of the multilayer structure, and includes a straight waveguide section which is inclined to a normal to the front facet of the multilayer structure and extends from the front facet, and a curved waveguide section which perpendicularly reaches the rear facet of the multilayer structure. The curved waveguide section is closer to the rear facet of the multilayer structure than a center of the optical waveguide is.