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(11)

EP 4 680 888 A1

(12)

(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24709422.0 (22) Date of filing: 11.03.2024

(51) International Patent Classification (IPC):  F21K 9/27(2016.01) F21Y 113/13(2016.01) F21K 9/65(2016.01) F21Y 115/10(2016.01) (52) Cooperative Patent Classification (CPC): F21K 9/27; F21K 9/65; F21Y 2113/13; F21Y 2115/10 (86) International application number: PCT/EP2024/056313 (87) International publication number: WO 2024/188915 (19.09.2024 Gazette 2024/38)

(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: GE KH MA MD TN (30) Priority: 16.03.2023 EP 23162373 (71) Applicant: Signify Holding B.V. 5656 AE Eindhoven (NL)	(72) Inventors: VAN BOMMEL, Ties 5656 AE Eindhoven (NL) KLEEVEN, Jeroen 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)