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:
Sep. 26, 2017
Filed:
Aug. 08, 2016
Seiko Epson Corporation, Tokyo, JP;
Michifumi Nagawa, Shiojiri, JP;
Seiko Epson Corporation, , JP;
Abstract
A light emitting device includes a laminated body having an active layer constituting a light waveguide, and first and second clad layers, and first and second electrodes. The light waveguide has first and second light emission surfaces from which light is emitted. The laminated body has a connection area connected to the second electrode. A width of the connection area is smallest at a central position where distances to the first and second light emission surfaces are equal, and increases toward end portion sides in an extending direction of the light waveguide. An outer edge of the connection area is provided with a first portion on the first light emission surface side, a second portion on the second light emission surface side, and third and fourth portions connecting the first and second portions. The third and fourth portions are smooth when viewed from the stacking direction.