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:
Jun. 05, 2018
Filed:
Jun. 03, 2013
Koninklijke Philips N.v., Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
The invention relates to a lighting device comprising: an optical reflector () which has an interior surface (); and a light source (); wherein the interior surface has a plurality of facets () that form a Fresnel structure-like reflecting surface (), and the interior surface may further have a cone () so as to avoid light from the light source being reflected back to the light source; wherein at least part of the light from the light resource is reflected by the optical reflector into an output direction. The invention also relates to a luminaire which comprises the lighting device according to the invention. The invention further relates to a method of manufacturing an optical reflector for a spot lighting lamp. The method comprises forming (S) a bowl-like structure that has an opening for emitting light and that has a Fresnel structure on the interior surface of the bowl-like structure.