EP 2425926 B1 20130109 - Method for trimming an ophthalmic lens
Title (en)
Method for trimming an ophthalmic lens
Title (de)
Konturfräsverfahren einer Augenlinse
Title (fr)
Procédé de détourage d'une lentille ophtalmique
Publication
Application
Priority
FR 1003565 A 20100907
Abstract (en)
[origin: EP2425926A1] The method involves dividing a longitudinal profile characterizing desired shape of contour of an ophthalmic lens (10), into a first final arc and a second arc. Contour portions (E1, E2) of the lens are respectively brought to shapes of the arcs by finishing such that a lens section has transverse profiles of different shapes on the portions. Position of initial singular points is corrected to obtain final singular points delimiting the final arc, during division step. The final arc is truncated to reduce its length with respect to that of an initial arc extending between the initial points.
IPC 8 full level
B24B 9/14 (2006.01); B24B 51/00 (2006.01); G02C 13/00 (2006.01)
CPC (source: EP US)
B24B 9/14 (2013.01 - EP US); B24B 51/00 (2013.01 - EP US)
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
DOCDB simple family (publication)
EP 2425926 A1 20120307; EP 2425926 B1 20130109; FR 2964336 A1 20120309; FR 2964336 B1 20120914; US 2012058714 A1 20120308; US 8926401 B2 20150106
DOCDB simple family (application)
EP 11290347 A 20110728; FR 1003565 A 20100907; US 201113223401 A 20110901