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:
Jul. 10, 2018
Filed:
Feb. 04, 2015
Osram Gmbh, Munich, DE;
Jan-Erik Künecke, Regensburg, DE;
Georg Forster, Regensburg, DE;
OSRAM GMBH, Munich, DE;
Abstract
Various embodiments may relate to a lighting device, including at least one primary light source for generating primary light, a phosphor volume spaced apart from the at least one primary light source and serving for at least partly converting the primary light into secondary light having a different wavelength, at least one light sensor for detecting light generated by the at least one primary light source, and an evaluation unit for determining a case of damage of the phosphor volume on the basis of sensor data of at least one light sensor. The lighting device includes at least one additional light source for irradiating the phosphor volume, and is designed to operate the at least one additional light source, the at least one light sensor and the evaluation unit with the primary light source switched off.