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. 09, 2008
Filed:
Sep. 23, 2005
Markus Richter, Neutraubling, DE;
Franz Eberhard, Regensburg, DE;
Peter Holzer, Obertraubling, DE;
Ewald Karl Michael Guenther, Regenstauf, DE;
Markus Richter, Neutraubling, DE;
Franz Eberhard, Regensburg, DE;
Peter Holzer, Obertraubling, DE;
Ewald Karl Michael Guenther, Regenstauf, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
Abstract
Disclosed is a light-emitting diode chip comprising a semiconductor layer sequence suitable for emitting primary electromagnetic radiation and further comprising a converter layer that is applied to at least one main face of the semiconductor layer sequence and comprises at least one phosphor suitable for converting a portion of the primary radiation into secondary radiation, at least a portion of the secondary radiation and at least a portion of the unconverted primary radiation overlapping to form a mixed radiation with a resulting color space. The converter layer is purposefully structured to adjust a dependence of the resulting color space on viewing angle. Also disclosed is a method of making a light-emitting diode chip in which a converter layer is purposefully structured.