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(11)

EP 3 884 323 A1

(12)

(43) Date of publication: 29.09.2021 Bulletin 2021/39 (21) Application number: 19805778.8 (22) Date of filing: 11.10.2019

(51) International Patent Classification (IPC):  G02B 6/44(2006.01) G02B 6/54(2006.01) G02B 6/52(2006.01) H02G 1/08(2006.01) (52) Cooperative Patent Classification (CPC): G02B 6/54; H02G 1/086; G02B 6/4464; G02B 6/4463; G02B 6/52 (86) International application number: PCT/PL2019/000089 (87) International publication number: WO 2020/106164 (28.05.2020 Gazette 2020/22)

(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: 19.11.2018 PL 42782818 (71) Applicant: Terma Spolka z.o.o. 80-298 Gdansk (PL)	(72) Inventor: BURCZYNSKI, Krzysztof 80-298 Gdansk (PL) (74) Representative: Czub, Krzysztof  Kancelaria Prawa Wlasnosci Przemyslowej i Prawa Autoskiego Teresa Czub & Krzysztof Czub Rzecznicy Patentowi Spólka Partnerska PO Box 12 80-700 Gdansk 2 80-700 Gdansk 2 (PL)