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1. (WO2018145887) LIGHT GUIDE PLATE AND LAMP HAVING SAID LIGHT GUIDE PLATE

Pub. No.:    WO/2018/145887    International Application No.:    PCT/EP2018/051464
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Tue Jan 23 00:59:59 CET 2018
IPC: F21V 8/00
Applicants: ZUMTOBEL LIGHTING GMBH
Inventors: KELLER, Katharina
Title: LIGHT GUIDE PLATE AND LAMP HAVING SAID LIGHT GUIDE PLATE
Abstract:
The present invention relates to a planar light guide plate (100) for a lamp, comprising: two planar sides (101, 102), which are connected to each other by a circumferential end face (103), injection patterns (200), which are provided on the end face (103) and are designed to inject light from the outside into the light guide plate (100), and outcoupling patterns (300), which are provided on one of the planar sides (101, 102) to deflect the light injected into the light guide plate (100) through the injection patterns (200) in such a manner as to couple the light out of the light guide plate (100) through one of the planar sides (101, 102), wherein the injection patterns (200) are designed such that the injected light is injected as a directed beam bundle (400) and the outcoupling patterns (300) have an elongate shape and extend by their longitudinal axis substantially in the planar plane of the light guide plate (100).