EP 4025956 A1 20220713 - COMPUTER-IMPLEMENTED METHOD FOR FITTING A SPECTACLE LENS TO A SPECTACLE FRAME
Title (en)
COMPUTER-IMPLEMENTED METHOD FOR FITTING A SPECTACLE LENS TO A SPECTACLE FRAME
Title (de)
COMPUTERIMPLEMENTIERTES VERFAHREN ZUM ANPASSEN EINES BRILLENGLASES AN EINE BRILLENFASSUNG
Title (fr)
PROCÉDÉ MIS EN OEUVRE PAR ORDINATEUR POUR ADAPTER UN VERRE DE LUNETTES À UNE MONTURE DE LUNETTES
Publication
Application
Priority
- EP 19195132 A 20190903
- EP 2020074158 W 20200828
Abstract (en)
[origin: WO2021043696A1] A computer-implemented method for fitting a spectacle lens, which has a first spectacle lens surface, a second spectacle lens surface and at least one dioptric power to be obtained, to a spectacle frame with a certain frame edge curve is made available. In the method, a free-form surface formed on a first spectacle lens surface is fitted to the frame edge curve of the spectacle frame. The free-form surface is fitted to the frame edge curve by virtue of the free-form surface and the second spectacle lens surface being optimized in view of minimizing the difference between the free-form surface edge curve and the frame edge curve and in view of achieving the at least one dioptric power to be obtained with the spectacle lens.
IPC 8 full level
G02C 7/02 (2006.01); G02C 7/06 (2006.01); G02C 13/00 (2006.01)
CPC (source: EP US)
G02C 7/027 (2013.01 - EP US); G02C 7/068 (2013.01 - EP US); G02C 13/005 (2013.01 - US); G02C 13/005 (2013.01 - 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
DOCDB simple family (publication)
EP 3789815 A1 20210310; CN 114270247 A 20220401; CN 114270247 B 20240514; EP 4025956 A1 20220713; US 11693258 B2 20230704; US 2022171213 A1 20220602; WO 2021043696 A1 20210311
DOCDB simple family (application)
EP 19195132 A 20190903; CN 202080061511 A 20200828; EP 2020074158 W 20200828; EP 20768284 A 20200828; US 202217676528 A 20220221