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. 28, 2014
Filed:
May. 14, 2010
Michael Brandl, Mintraching, DE;
Alexander Wilm, Regensburg, DE;
Michael Brandl, Mintraching, DE;
Alexander Wilm, Regensburg, DE;
Abstract
An optical lighting device includes a radiation detector, a first light source and a second light source. The radiation detector includes a semiconductor chip and an optical filter, and has a spectral sensitivity distribution. The first light source generates white radiation. The second light source generates monochrome radiation in the visible spectral range, wherein radiation emitted by the first light source and radiation emitted by the second light source are superimposed to yield mixed radiation which includes a wavelength spectrum. The wavelength spectrum of the mixed radiation is adapted to the spectral sensitivity distribution of the radiation detector.