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:
Mar. 26, 2019
Filed:
May. 11, 2016
Philips Lighting Holding B.v., Eindhoven, NL;
Ties Van Bommel, Eindhoven, NL;
Dirk Jan Van Kaathoven, Eindhoven, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Rick Gerhardus Nijkamp, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
The invention provides a lighting unit () comprising a first lighting device (), a second lighting device (), and a control unit () configured to control the lighting devices (), wherein (a) the first lighting device () is configured to provide first lighting device light () having a first spectral distribution with at least two first emission maxima (EM, EM, . . . ) spaced by at least 75 nm, a first color point x1,y1 and a first correlated color temperature T1; (b) the second lighting device () is configured to provide second lighting device light () having a second spectral distribution with at least two emission maxima (EM, EM, . . . ) spaced by at least 75 nm, a second color point x2,y2 and a second correlated color temperature T2; (c) the lighting unit () is configured to generate lighting unit light () comprising one or more of the first lighting device light () and the second lighting device light (); and (d) the first spectral distribution and the second spectral distribution are different with at least one first emission maxima (EM) and at least two second emission maxima (EM,EM) mutually differing at least 10 nm from each other, and wherein one or more of (i) 0.9≤x1/x2≤1.1, (ii) 0.9≤y1/y2≤1.1, and (iii) 0.9≤T1/T2≤1.1 applies.