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. 29, 2016
Filed:
Oct. 15, 2012
Koninklijke Philips N.v., Eindhoven, NL;
Michel Cornelis Josephus Marie Vissenberg, Roermond, NL;
Willem Franke Pasveer, Dordrecht, NL;
Antonius Petrus Marinus Dingemans, Tiburg, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The invention relates to a method for determining a distance from a sensor to a luminaire. The luminaire includes at least a first light source configured to emit a first light beam adapted to illuminate a predefined area and a second light source configured to emit a second light beam adapted to illuminate a background area surrounding the predefined area. The sensor, which could e.g. be included within another luminaire, is configured to detect a back-reflected first light beam and a back-reflected second light beam. The method includes determining the distance from the sensor to the luminaire based, at least partially, on a comparison of information indicative of a signal strength of the detected back-reflected first light beam and information indicative of a signal strength of the detected back-reflected second light beam.