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1. (WO2018158110) LUMINAIRE WITH LIGHT GUIDE

Pub. No.:    WO/2018/158110    International Application No.:    PCT/EP2018/054123
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Wed Feb 21 00:59:59 CET 2018
IPC: F21S 8/04
F21S 8/08
F21V 8/00
F21V 7/00
F21Y 115/10
F21Y 105/00
Applicants: PHILIPS LIGHTING HOLDING B.V.
Inventors: MUNOZ FERNANDEZ, Fernando
LAPORTE, Jean-François
DEFLANDRE, Thomas
VREDENBORG, Arno
VOS, Herman
Title: LUMINAIRE WITH LIGHT GUIDE
Abstract:
A luminaire comprises a light guide (72) having light outcoupling elements (77) at one side and a flat light output surface (78) at the other side, which is visible in use of the luminaire. An array of solid state lighting elements (84) is arranged around the edge of the light guide facing the general light output direction (80). A respective reflector (90) is associated with each solid state lighting element (84) for reflecting light into the light guide (72). By providing the lighting elements all facing the general light output direction, they can be formed as a single unit, or as a small number of sub-units, thereby simplifying the manufacture. The design of the reflectors, the positioning of the lighting elements, and the design of the light outcoupling elements together may be used to create an asymmetrical light output beam shape. Actuation of different lighting elements may be used to provide different asymmetric light outputs.