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:
May. 16, 2017
Filed:
Jan. 08, 2014
Philips Lighting Holding B.v., Eindhoven, NL;
Michel Cornelis Josephus Marie Vissenberg, Roermond, NL;
Bianca Maria Irma Van Der Zande, Heeze, NL;
Lucas Josef Maria Schlangen, Eindhoven, NL;
Daniël Willem Elisabeth Schobben, Waalre, NL;
Inge Van De Wouw, Tilburg, NL;
Leonie Maria Geerdinck, Eindhoven, NL;
Remco Adrianus Gerardus Lansbergen, Heeze, NL;
Willem Franke Pasveer, Dordrecht, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
A lighting device comprising a first light source issuing a first beam and a second light source issuing a second beam. Said first and said second light source are dimmable and together issue light with a total light flux. At a mutually equal light flux of the first and the second beam, the glare level of the second beam is lower than the glare level of the first beam. The lighting device further comprises at least one (programmed) controller which, during operation, moderates said dim levels such that in at least a range of the illumination level a ratio of the dim level of the second beam to the dim level of the first beam increases in a gradual manner with increasing total light flux.