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:
Feb. 05, 2013
Filed:
Dec. 17, 2008
Alfred Lell, Maxhuette-Haidhof, DE;
Christoph Eichler, Tegernheim, DE;
Wolfgang Schmid, Regensburg, DE;
Soenke Tautz, Tegernheim, DE;
Wolfgang Reill, Pentling, DE;
Dimitri Dini, Regensburg, DE;
Alfred Lell, Maxhuette-Haidhof, DE;
Christoph Eichler, Tegernheim, DE;
Wolfgang Schmid, Regensburg, DE;
Soenke Tautz, Tegernheim, DE;
Wolfgang Reill, Pentling, DE;
Dimitri Dini, Regensburg, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
Abstract
A laser light source including a semiconductor layer sequence having an active region and a radiation coupling-out area having a first partial region and a second partial region different than the first partial region, and a filter structure. The active region generates, during operation, coherent first electromagnetic radiation having a first wavelength range and incoherent second electromagnetic radiation having a second wavelength range. The coherent first electromagnetic radiation is emitted by the first partial region along an emission direction, and the incoherent second electromagnetic radiation is emitted by the first and second partial regions. The second wavelength range includes the first wavelength range, and the filter structure at least partly attenuates the incoherent second electromagnetic radiation emitted by the active region along the emission direction.