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1. (WO2016055365) LIGHT DISTRIBUTOR, A SYSTEM COMPRISING A LIGHT DISTRIBUTOR AND AT LEAST ONE LED LUMINAIRE, AND A METHOD FOR PRODUCING A LIGHT DISTRIBUTOR

Pub. No.:    WO/2016/055365    International Application No.:    PCT/EP2015/072780
Publication Date: Fri Apr 15 01:59:59 CEST 2016 International Filing Date: Sat Oct 03 01:59:59 CEST 2015
IPC: F21V 8/00
G02B 6/125
Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventors: KONTERMANN, Stefan
SCHADE, Wolfgang
WINTER, Christian
Title: LIGHT DISTRIBUTOR, A SYSTEM COMPRISING A LIGHT DISTRIBUTOR AND AT LEAST ONE LED LUMINAIRE, AND A METHOD FOR PRODUCING A LIGHT DISTRIBUTOR
Abstract:
The invention relates to a light distributor, a system consisting of a light distributor and an LED luminaire, and a method for producing a light distributor. The light distributor according to the invention comprises a transparent main body having a light entrance area and a light exit area, at least one light-scattering structure with a changed refractive index inside the main body for scattering light, and at least one light-guiding structure with a changed refractive index inside the main body for guiding light. The light-scattering structure and the light-guiding structure are produced in this case by means of ultrashort pulse laser processing. The light-scattering structure and the light-guiding structure with a changed refractive index are arranged in the main body in this case in such a manner that light incident through the light entrance area can be initially scattered at the light-scattering structure and can then be guided to the light exit area using the light-guiding structure with a changed refractive index.