EP 3206837 B1 20191120 - POLISHING DISC FOR A TOOL FOR FINE PROCESSING OF OPTICALLY ACTIVE SURFACES OF IN PARTICULAR SPECTACLE LENSES
Title (en)
POLISHING DISC FOR A TOOL FOR FINE PROCESSING OF OPTICALLY ACTIVE SURFACES OF IN PARTICULAR SPECTACLE LENSES
Title (de)
POLIERTELLER FÜR EIN WERKZEUG ZUR FEINBEARBEITUNG VON OPTISCH WIRKSAMEN FLÄCHEN AN BRILLENGLÄSERN
Title (fr)
DISQUE À POLIR POUR UN OUTIL DESTINÉ AU TRAITEMENT PRÉCIS DE SURFACES OPTIQUES ACTIVES EN PARTICULIER SUR DES VERRES DE LUNETTES
Publication
Application
Priority
- DE 102014015052 A 20141015
- EP 2015001849 W 20150916
Abstract (en)
[origin: CA2964212A1] A polishing disc for a tool for fine processing of optically effective surfaces on spectacle lenses is described. The disc includes a base body having a center axis with a secured intermediate layer of a resilient material, on which a polishing medium carrier rests. The intermediate layer is softer by comparison with the base body, where the intermediate layer has two regions of different hardness arranged in succession in the direction of the center axis and being formed by mutually different foam material layers. The foam material layer adjoining the base body is softer than the foam material layer on which the polishing medium carrier rests. Further, as determined for the case of whole-area compression, the static modulus of elasticity of the harder foam material layer is between 0.40 and 1.50 N/mm2, and the static modulus of elasticity of the softer foam material layer is between 0.25 and 0.45 N/mm2.
IPC 8 full level
B24D 13/14 (2006.01); B24B 13/01 (2006.01); B24B 13/02 (2006.01); B24D 9/00 (2006.01)
CPC (source: CN EP US)
B24B 13/012 (2013.01 - CN EP US); B24B 13/02 (2013.01 - CN EP US); B24D 9/003 (2013.01 - EP US); B24D 13/147 (2013.01 - CN 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)
DE 102014015052 A1 20160421; BR 112017007635 A2 20180130; BR 112017007635 B1 20210330; CA 2964212 A1 20160421; CA 2964212 C 20220531; CN 107107315 A 20170829; CN 107107315 B 20200421; DE 202015009504 U1 20180116; EP 3206837 A1 20170823; EP 3206837 B1 20191120; ES 2764652 T3 20200604; MX 2017004829 A 20171012; PL 3206837 T3 20200518; PT 3206837 T 20200115; US 10569387 B2 20200225; US 2017246729 A1 20170831; WO 2016058661 A1 20160421
DOCDB simple family (application)
DE 102014015052 A 20141015; BR 112017007635 A 20150916; CA 2964212 A 20150916; CN 201580068220 A 20150916; DE 202015009504 U 20150916; EP 15763495 A 20150916; EP 2015001849 W 20150916; ES 15763495 T 20150916; MX 2017004829 A 20150916; PL 15763495 T 20150916; PT 15763495 T 20150916; US 201515519662 A 20150916