EP 4211510 A1 20230719 - METHODS AND SYSTEMS FOR MAKING AN OPTICAL FUNCTIONAL FILM
Title (en)
METHODS AND SYSTEMS FOR MAKING AN OPTICAL FUNCTIONAL FILM
Title (de)
VERFAHREN UND SYSTEME ZUR HERSTELLUNG EINES OPTISCHEN FUNKTIONELLEN FILMS
Title (fr)
PROCÉDÉS ET SYSTÈMES DE FABRICATION D'UN FILM OPTIQUE FONCTIONNEL
Publication
Application
Priority
- US 202017019243 A 20200912
- US 2020053653 W 20200930
Abstract (en)
[origin: WO2022055520A1] Methods and apparatus are provided for eyeglass lens made using a solution casting process. The method may include providing a first soluble polymer solution. The method may include providing a first dye solution including at least one dye. The method may include adding the first dye solution to the first soluble polymer solution to form a first dyed solution. The method may include casting the first dyed solution to form a first film. The method may include providing a second soluble polymer solution. The method may include providing a second dye solution comprising at least one dye. The method may include adding the second dye solution to the second soluble polymer solution to form a second dyed solution. The method may include casting the second dyed solution onto the first film to form a two-layer film. The method may include laminating or casting the two- layer film to the eyeglass lens.
IPC 8 full level
CPC (source: EP GB KR)
B29D 11/00009 (2013.01 - EP); B29D 11/00634 (2013.01 - EP); B29D 11/0073 (2013.01 - EP); G02B 1/041 (2013.01 - EP GB KR); G02B 5/223 (2013.01 - EP GB KR); G02C 7/10 (2013.01 - EP GB KR); G02C 2202/16 (2013.01 - EP GB KR)
C-Set (source: EP)
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022055520 A1 20220317; AU 2020467829 A1 20230406; AU 2020467829 A9 20240523; CA 3195244 A1 20220317; CN 116209924 A 20230602; EP 4211510 A1 20230719; GB 202304811 D0 20230517; GB 2614017 A 20230621; GB 2614017 B 20240207; JP 2023542121 A 20231005; KR 20230066038 A 20230512
DOCDB simple family (application)
US 2020053653 W 20200930; AU 2020467829 A 20200930; CA 3195244 A 20200930; CN 202080105101 A 20200930; EP 20953493 A 20200930; GB 202304811 A 20200930; JP 2023516802 A 20200930; KR 20237011612 A 20200930