(19)

(11)

EP 3 991 521 A1

(12)

(43) Date of publication: 04.05.2022 Bulletin 2022/18 (21) Application number: 20739814.0 (22) Date of filing: 23.06.2020

(51) International Patent Classification (IPC):  H05B 45/20(2020.01) H05B 45/325(2020.01) H05B 45/3577(2020.01) (52) Cooperative Patent Classification (CPC): H05B 45/325; H05B 45/3577; H05B 45/20 (86) International application number: PCT/US2020/039137 (87) International publication number: WO 2020/263826 (30.12.2020 Gazette 2020/53)

(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: 27.06.2019 US 201916454730 23.10.2019 EP 19204908 (71) Applicant: Lumileds LLC San Jose, CA 95131 (US)	(72) Inventor: QIU , Yifeng San Jose, California 95131 (US) (74) Representative: Beckord & Niedlich Patentanwälte PartG mbB  Marktplatz 17 83607 Holzkirchen 83607 Holzkirchen (DE)