(19)

(11)

EP 4 740 055 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24737886.2 (22) Date of filing: 26.06.2024

(51) International Patent Classification (IPC):  G02B 27/00(2006.01) G02B 13/16(2006.01) G02B 27/01(2006.01) (52) Cooperative Patent Classification (CPC): G02B 13/16; G02B 27/0172; G02B 27/0025; G02B 2027/0145 (86) International application number: PCT/EP2024/068024 (87) International publication number: WO 2025/008246 (09.01.2025 Gazette 2025/02)

(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: 05.07.2023 GB 202310296 (71) Applicant: TruLife Optics Limited London Greater London E14 0FR (GB)	(72) Inventor: VOLKOV, Andrii London Greater London E14 0FR (GB) (74) Representative: Crawford, Andrew  TruLife Optics Ltd Fittingshop Building 79 Trinity Buoy Wharf London E14 0FR London E14 0FR (GB)