(19)

(11)

EP 4 278 229 A1

(12)

(43) Date of publication: 22.11.2023 Bulletin 2023/47 (21) Application number: 21836627.6 (22) Date of filing: 30.11.2021

(51) International Patent Classification (IPC):  G02C 5/14(2006.01) G02C 13/00(2006.01) G02C 5/22(2006.01) (52) Cooperative Patent Classification (CPC): G02C 5/2209; G02C 5/2254; G02C 5/146; G02C 13/001 (86) International application number: PCT/IB2021/061097 (87) International publication number: WO 2022/153109 (21.07.2022 Gazette 2022/29)

(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: 15.01.2021 WO PCT/IB2021/050298 (71) Applicant: Kozma, Marc Christophe 1090 La Croix (Lutry) (CH)	(72) Inventors: CHIANG, Chen Taichung City (TW) KOZMA, Marc Christophe 1090 La Croix (Lutry) (CH) (74) Representative: Grosfillier, Philippe  André Roland SA IP Attorneys & Services Avenue Collonges 21 1004 Lausanne 1004 Lausanne (CH)