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:
Apr. 14, 2015
Filed:
Nov. 24, 2010
Dirk Berben, Herdecke, DE;
Mathias Bruemmer, Wusterwitz, DE;
Ulrich Hartwig, Berlin, DE;
Nico Morgenbrod, Berlin, DE;
Matthias Morkel, Berlin, DE;
Dirk Berben, Herdecke, DE;
Mathias Bruemmer, Wusterwitz, DE;
Ulrich Hartwig, Berlin, DE;
Nico Morgenbrod, Berlin, DE;
Matthias Morkel, Berlin, DE;
Osram AG, Munich, DE;
Abstract
A light source unit may include a cooling device; a luminescent substance; an excitation radiation source having a laser source; and an optical element arranged between the radiation source and the substance; wherein the cooling device constitutes a heat sink, wherein the substance is linked thermally to the heat sink; and wherein the optical element is designed as an integrating optical element and is coupled between the radiation source and the substance in such a manner that a part of the radiation emitted by the radiation source, entering in an acceptance angle range of the integrating optical element, is subjected to an internal reflection in the optical element before it exits the optical element and strikes the substance, and that a part of the radiation emitted by the substance enters the optical element and exits the optical element as effective radiation.