(19)

(11)

EP 4 070 158 A1

(12)

(43) Date of publication: 12.10.2022 Bulletin 2022/41 (21) Application number: 21857009.1 (22) Date of filing: 30.09.2021

(51) International Patent Classification (IPC):  G02F 1/1335(2006.01) G02B 5/20(2006.01) F21K 9/64(2016.01) G02B 5/02(2006.01) F21V 9/32(2018.01) (86) International application number: PCT/US2021/052904 (87) International publication number: WO 2022/177606 (25.08.2022 Gazette 2022/34)

(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: 17.02.2021 US 202117177920 15.06.2021 US 202117348570 (71) Applicant: Eyesafe Inc. Eden Prairie MN 55344 (US)	(72) Inventors: GARBAR, Arkady Eden Prairie, MN 55344 (US) HARRIS, Derek Eden Prairie, MN 55344 (US) MITZEL, Kelly Eden Prairie, MN 55344 (US) (74) Representative: FRKelly  27 Clyde Road Dublin D04 F838 Dublin D04 F838 (IE)