EP 2234758 A1 20101006 - METHOD FOR PREPARING AN OPHTHALMIC LENS WITH SPECIFIC MACHINING OF THE FITTING RIB THEREOF
Title (en)
METHOD FOR PREPARING AN OPHTHALMIC LENS WITH SPECIFIC MACHINING OF THE FITTING RIB THEREOF
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER KONTAKTLINSE MIT BESONDERER VERARBEITUNG VON DEREN FASSUNGSRIPPE
Title (fr)
PROCÉDÉ DE PRÉPARATION D'UNE LENTILLE OPHTALMIQUE AVEC UN USINAGE SPÉCIFIQUE DE SA NERVURE D'EMBOÎTEMENT
Publication
Application
Priority
- FR 2009000024 W 20090109
- FR 0800452 A 20080128
Abstract (en)
[origin: US8651661B2] The invention relates to a method for preparing an ophthalmic lens (20) for mounting the same into the rim of a rimmed spectacles frame that comprises the step of acquiring a first longitudinal profile (27) of a groove of said rim, the step of blocking the lens in a holding means, and the step of trimming the ophthalmic lens using trimming means, during which the holding and trimming means are driven so that the ophthalmic lens is trimmed and includes a fitting rib extending along a second longitudinal profile (25; 26) derived from the first longitudinal profile. According to the invention, the method comprises the step of determining a second longitudinal profile of a singular portion (Z1) having a reduced curvature radius. Furthermore, during the trimming step, the holding and trimming means are driven so that the section of the fitting rib is locally narrowed in terms of width and/or height in said singular portion, and/or so that the setpoint of the trimming radius is reduced in said singular portion.
IPC 8 full level
B24B 9/14 (2006.01)
CPC (source: EP US)
B24B 9/144 (2013.01 - EP US)
Designated contracting state (EPC)
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 SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
FR 2926898 A1 20090731; FR 2926898 B1 20100319; AT E516110 T1 20110715; EP 2234758 A1 20101006; EP 2234758 B1 20110713; EP 2234758 B9 20120208; US 2010312573 A1 20101209; US 8651661 B2 20140218; WO 2009106764 A1 20090903
DOCDB simple family (application)
FR 0800452 A 20080128; AT 09714122 T 20090109; EP 09714122 A 20090109; FR 2009000024 W 20090109; US 86467309 A 20090109