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EP 4 569 568 A1

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(43) Date of publication: 18.06.2025 Bulletin 2025/25 (21) Application number: 23751018.5 (22) Date of filing: 04.08.2023

(51) International Patent Classification (IPC):  H01Q 1/38(2006.01) F21V 23/00(2015.01) H01Q 7/00(2006.01) H05B 47/19(2020.01) (52) Cooperative Patent Classification (CPC): H01Q 1/38; H01Q 7/00; H05B 47/19; F21V 23/008 (86) International application number: PCT/EP2023/071632 (87) International publication number: WO 2024/033242 (15.02.2024 Gazette 2024/07)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 12.08.2022 WO PCT/CN2022/112273 26.09.2022 EP 22197754 (71) Applicant: Signify Holding B.V. 5656 AE Eindhoven (NL)	(72) Inventors: PENG, Shaohua 5656 AE Eindhoven (NL) HU, Guofu 5656 AE Eindhoven (NL) ZHANG, YaQiong 5656 AE Eindhoven (NL) (74) Representative: Verweij, Petronella Daniëlle  Signify Netherlands B.V. Intellectual Property High Tech Campus 7 5656 AE Eindhoven 5656 AE Eindhoven (NL)