(19)

(11)

EP 4 308 983 A1

(12)

(43) Date of publication: 24.01.2024 Bulletin 2024/04 (21) Application number: 22715847.4 (22) Date of filing: 21.03.2022

(51) International Patent Classification (IPC):  G02B 5/18(2006.01) G03H 1/00(2006.01) G03F 7/00(2006.01) (52) Cooperative Patent Classification (CPC): G02B 5/1857; G03F 7/001; G03F 7/027; G03F 7/038; G03F 7/2022; G03F 7/035; G03F 7/029; G03H 1/0248; G03H 2260/12; G03H 2260/30; G11B 7/245; C08F 2/50; C08F 2438/03; C08F 2438/01 (86) International application number: PCT/US2022/021105 (87) International publication number: WO 2022/198119 (22.09.2022 Gazette 2022/38)

(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 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: 19.03.2021 US 202163163596 P 17.02.2022 US 202217674729 (71) Applicant: META PLATFORMS TECHNOLOGIES, LLC Menlo Park, CA 94025 (US)	(72) Inventors: LANE, Austin Menlo Park, California 94025 (US) PURVIS II, Lafe, Joseph, II Menlo Park, California 94025 (US) ALIM, Marvin, Dion Menlo Park, California 94025 (US) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)