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.

Date of Patent:
Sep. 11, 2018

Filed:

May. 26, 2015
Applicant:

Philips Lighting Holding B.v., Eindhoven, NL;

Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/02 (2018.01); F21V 3/00 (2015.01); F21V 5/04 (2006.01); F21V 7/00 (2006.01); F21V 5/00 (2018.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21V 9/02 (2013.01); F21V 3/00 (2013.01); F21V 5/002 (2013.01); F21V 5/045 (2013.01); F21V 7/0091 (2013.01); F21Y 2115/10 (2016.08);
Abstract

The invention provides a lighting unit () for providing daylight experience for a human. The lighting unit () comprises: a first light source () and a second light source () configured to provide light source light () having different spectral distributions, a light transmissive first light redistribution window () configured downstream of the first light source () and a light transmissive second light redistribution window () configured downstream of the second light source (), a light transmissive redirection window () configured downstream of the first light redistribution window () and the second light redistribution window (), and optionally a diffuser window () configured downstream of the light transmissive redirection window ().


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