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:
Nov. 26, 2019
Filed:
Jul. 10, 2017
Signify Holding B.v., Eindhoven, NL;
Stephanus Joseph Johannes Nijssen, Eindhoven, NL;
Frederik Jan De Bruijn, Eindhoven, NL;
Gerardus Cornelis Petrus Lokhoff, Eindhoven, NL;
Peter Hoekstra, Waalre, NL;
Benjamin Johannes Vos, Eindhoven, NL;
Onno Martin Janssen, Geldrop, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
Multiple luminaires are mounted contiguously in a plane, along a straight line or following a one or two dimensional contour, but with a visible periphery between each adjacent pair. A different signal is embedded into the visible illumination emitted by each luminaire, which an image processing module can detect from one or more images captured by a camera. An angle-dependent mask is arranged to cover at least the periphery between adjacent luminaires, such that an appearance of the periphery when viewed from the environment through the mask varies as a function of viewing angle, becoming less visible at greater values of viewing angle (being the angle between a corresponding viewing direction and a normal to the plane, line or contour). The image processing module distinguishes between the different signals based on the periphery being visible when captured from less than a predetermined value of the viewing angle.