EP 2014412 B1 20101110 - Polishing disc for a tool for fine processing of optically active surfaces of in particular spectacle lenses and method for its production
Title (en)
Polishing disc for a tool for fine processing of optically active surfaces of in particular spectacle lenses and method for its production
Title (de)
Polierteller für ein Werkzeug zur Feinbearbeitung von optisch wirksamen Flächen an insbesondere Brillengläsern und Verfahren für dessen Herstellung
Title (fr)
Disque à polir pour un outil destiné au traitement précis de surfaces optiques actives en particulier sur des verres de lunettes et son procédé de fabrication
Publication
Application
Priority
DE 102007026841 A 20070606
Abstract (en)
[origin: US2008305723A1] A polishing disc for a tool for the fine machining of optically active surfaces, particularly on spectacle lenses as workpieces, comprises a main body which has a center axis and on which there is fixed an intermediate layer which is softer than the main body and on which a polishing agent carrier rests. The intermediate layer has, with respect to the center axis, a radial inner region of substantially constant axial thickness and an adjoining radial outer region. The latter is formed or is fixed to the main body in a particular way so as to prevent the edge of the polishing disc from being imprinted on the machined surface of the workpiece in the form of very fine, scratch-like microstructures. Also proposed is a simple method which can be used to produce such a polishing disc.
IPC 8 full level
B24B 13/02 (2006.01); B24D 13/14 (2006.01); B24D 18/00 (2006.01)
CPC (source: EP US)
B24B 13/02 (2013.01 - EP US); B24D 13/147 (2013.01 - EP US); B24D 18/00 (2013.01 - EP US); Y10T 156/1062 (2015.01 - EP US); Y10T 156/1064 (2015.01 - 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 MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2008305723 A1 20081211; US 8246424 B2 20120821; AT E487563 T1 20101115; BR PI0801761 A2 20090602; BR PI0801761 B1 20201110; CN 101318304 A 20081210; CN 101318304 B 20111221; DE 102007026841 A1 20081211; DE 502008001743 D1 20101223; EP 2014412 A1 20090114; EP 2014412 B1 20101110; ES 2355170 T3 20110323
DOCDB simple family (application)
US 15659708 A 20080603; AT 08010088 T 20080603; BR PI0801761 A 20080606; CN 200810125919 A 20080605; DE 102007026841 A 20070606; DE 502008001743 T 20080603; EP 08010088 A 20080603; ES 08010088 T 20080603