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:
Feb. 25, 2020
Filed:
Oct. 09, 2017
Signify Holding B.v., Eindhoven, NL;
Michel Cornelis Josephus Marie Vissenberg, Eindhoven, NL;
Oliver Dross, Eindhoven, NL;
Johannes Petrus Maria Ansems, Eindhoven, NL;
Dirk Jan Van Kaathoven, Eindhoven, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
The present disclosure relates to a color tunable lighting device comprising at least one light source (), a symmetry axis () and an envelope (). The at least one light source () is disposed on a base () extending within a plane and the envelope () is disposed at least above the base () and defines a cavity () extending along the symmetry axis (). The at least one light source () is arranged at a distance X from the symmetry axis () along a radial direction relative to the symmetry axis. The plane is arranged to intersect the symmetry axis (). The distance X may be at least 50% of a total distance between the symmetry axis () and an edge of the envelope (), or a projection of the edge of the envelope () on the plane in which the base () extends, as seen along the radial direction. A curvature of the envelope () is monotonically increasing with an increasing distance from the base ().