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(11)

EP 4 045 954 A1

(12)

(43) Date of publication: 24.08.2022 Bulletin 2022/34 (21) Application number: 20876134.6 (22) Date of filing: 15.10.2020

(51) International Patent Classification (IPC):  G02B 6/30(2006.01) G02B 6/028(2006.01) G02B 6/02(2006.01) (52) Cooperative Patent Classification (CPC): G02B 6/02042; G02B 6/305; G02B 6/2856; G02B 6/024 (86) International application number: PCT/US2020/055778 (87) International publication number: WO 2021/076752 (22.04.2021 Gazette 2021/16)

(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: 18.10.2019 US 201962923383 P 31.10.2019 US 201916670224 (71) Applicant: Chiral Photonics, Inc. Pine Brook, NJ 07058 (US)	(72) Inventors: KOPP, Victor, Il'ich Pine Brook, New Jersey 07058 (US) PARK, Jongchul Pine Brook, New Jersey 07058 (US) SINGER, Jonathan Pine Brook, New Jersey 07058 (US) NEUGROSCHL, Daniel Pine Brook, New Jersey 07058 (US) (74) Representative: f & e patent  Braunsberger Feld 29 51429 Bergisch Gladbach 51429 Bergisch Gladbach (DE)