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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.:

US 10959305 B1

PDFFull Text
Date of Patent:
Mar. 23, 2021

Filed:

Apr. 04, 2018

Controlling a lighting device having at least two electric light sources

Applicant:

Osram Gmbh, Munich, DE;

Inventors:

Mourad Boulouednine, Neuried, DE;

Ulrich Binder, Munich, DE;

Michael Steyer, Stadtbergen, DE;

Assignee:

Osram GmbH, Munich, DE;

Attorney:

Viering, Jentschura & Partner MBB

Primary Examiner:

Tung X Le

Int. Cl.
CPC ...
H05B 47/10 (2020.01); H05B 45/22 (2020.01); H05B 45/20 (2020.01); H05B 45/50 (2020.01); H05B 47/19 (2020.01); H05B 45/37 (2020.01); H05B 47/16 (2020.01); H05B 45/10 (2020.01); G01J 3/46 (2006.01); G01J 5/60 (2006.01); G09F 19/20 (2006.01);
U.S. Cl.
CPC ...
H05B 45/22 (2020.01); G01J 3/465 (2013.01); G01J 5/60 (2013.01); G09F 19/205 (2013.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 45/37 (2020.01); H05B 45/50 (2020.01); H05B 47/16 (2020.01); H05B 47/19 (2020.01);
Abstract

A method may include supplying electric power to a first light source and a second light source of at least two light sources by at least one ballast so that the first light source and the second light source emit a first source light and a second source light with a first and second spectral light distribution, respectively. The method further includes superimposing the first and second source light using an optical unit such that the lighting device outputs light with a spectral superposition light distribution. The method further includes detecting the light outputted from the lighting device using a light distribution sensor that provides a sensor signal corresponding to a spectral light distribution of the detected light. The method further includes comparing the sensor signal to a predefined spectral light distribution and adjusting the electric power supplied to the respective light source by the ballast based on the comparison.

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