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EP 4 824 602 A1

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(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24817884.0 (22) Date of filing: 29.11.2024

(51) International Patent Classification (IPC):  G02B 27/00(2006.01) G02B 13/00(2006.01) G02B 5/00(2006.01) G02B 1/118(2015.01) H10F 39/00(2025.01) (52) Cooperative Patent Classification (CPC): G02B 5/003; G02B 27/0018; G02B 1/118; H10F 39/024; G02B 13/0085 (86) International application number: PCT/EP2024/084082 (87) International publication number: WO 2025/124925 (19.06.2025 Gazette 2025/25)

(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: 13.12.2023 DE 102023134939 (71) Applicant: Heptagon Photonics Pte. Ltd. Singapore 569877 (SG)	(72) Inventors: SANZONE, Alessandro Singapore 569877 (SG) TONSA, Lorenzo Zuerich (CH) STASIO, Nicolino 8008 Zuerich (CH) (74) Representative: Fritz Patent- und Rechtsanwälte PartmbB  Apothekerstr. 55 59755 Arnsberg 59755 Arnsberg (DE)