(19)

(11)

EP 3 695 163 A1

(12)

(43) Date of publication: 19.08.2020 Bulletin 2020/34 (21) Application number: 18783022.9 (22) Date of filing: 10.10.2018

(51) International Patent Classification (IPC):  F21V 8/00(2006.01) H01L 33/50(2010.01) F21V 9/30(2018.01) B82Y 20/00(2011.01) F21V 9/38(2018.01) (86) International application number: PCT/EP2018/077649 (87) International publication number: WO 2019/072938 (18.04.2019 Gazette 2019/16)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 10.10.2017 GB 201716560 10.10.2017 EP 17195642 (71) Applicants: Katholieke Universiteit Leuven 3000 Leuven (BE) Universiteit Gent 9000 Gent (BE)	(72) Inventors: MEURET, Youri 9820 Merelbeke (BE) RYCKAERT, Jana 9190 Stekene (BE) HENS, Zeger 9000 Gent (BE) NAKONECHNYI, Igor 9000 Gent (BE) (74) Representative: DenK iP  Leuvensesteenweg 203 3190 Boortmeerbeek 3190 Boortmeerbeek (BE)