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. 31, 2017
Filed:
Nov. 24, 2015
Osram Opto Semiconductors Gmbh, 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, Soest, DE;
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Abstract
A laser light source, comprising a semiconductor layer sequence having an active region and a radiation coupling out area having first and second partial regions, and a filter structure. The active region generates coherent first electromagnetic radiation and incoherent second electromagnetic radiation. 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 partial region and by the second partial region. The filter structure at least partly attenuates the incoherent second electromagnetic radiation emitted by the active region along the emission direction. The filter structure comprises at least one first filter element disposed downstream of the semiconductor layer sequence in the emission direction and it has at least one layer comprising a material that is non-transparent to electromagnetic radiation.