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:
Dec. 31, 2013
Filed:
Jun. 28, 2010
Alfred Lell, Haidhof, DE;
Stefanie Rammelsberger, Zeitlam, DE;
Alfred Lell, Haidhof, DE;
Stefanie Rammelsberger, Zeitlam, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Abstract
A broad stripe laser () comprising an epitaxial layer stack (), which contains an active, radiation-generating layer () and has a top side () and an underside (). The layer stack () has trenches () in which at least one layer of the layer stack () is at least partly removed and which lead from the top side () in the direction of the underside (). The layer stack () has on the top side ridges () each adjoining the trenches (), such that the layer stack () is embodied in striped fashion on the top side. The ridges () and the trenches () respectively have a width (d, d) of at most 20 μm.