EP 0650803 B1 19990310 - Method for the polishing and finishing of optical lenses
Title (en)
Method for the polishing and finishing of optical lenses
Title (de)
Verfahren zum Polieren und Veredeln von optischen Linsen
Title (fr)
Méthode pour le polissage et finissage de lentilles optiques
Publication
Application
Priority
US 14542293 A 19931029
Abstract (en)
[origin: EP0650803A1] A method for polishing an optical quality surface, such as an ophthalmic lens, to finish which can accept a hardenable protective coating without using an abrasive slurry or gel, including the steps of: (a) providing an optical lens having a first major surface, the first major surface having an initial Rtm value of greater than 0.35 micrometers; (b) bringing the first major surface into a frictional contacting relationship with an abrasive article (10), wherein the abrasive article includes a sheet-like structure having deployed on at least one major surface thereof a plurality of individual abrasive composites, each composite having a plurality of abrasive particles dispersed in a binder; and (c) moving at least one of the contacting first major surface and abrasive article relative to each other with rotational and/or oscillatory movement in the presence of a liquid substantially free of abrasive particles in a manner and for a time effective to polish the first major surface to provide a final Rtm value in the first major surface of 0.30 micrometers or less. <IMAGE>
IPC 1-7
IPC 8 full level
B24B 13/00 (2006.01); B24B 13/01 (2006.01); B24B 37/00 (2006.01); B24D 3/28 (2006.01); B24D 3/34 (2006.01); B24D 7/18 (2006.01); B24D 11/00 (2006.01)
CPC (source: EP KR)
B24B 13/01 (2013.01 - EP); B24C 1/00 (2013.01 - KR); B24D 3/28 (2013.01 - EP); B24D 3/34 (2013.01 - EP); B24D 3/342 (2013.01 - EP)
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0650803 A1 19950503; EP 0650803 B1 19990310; AU 672925 B2 19961017; AU 7586794 A 19950518; BR 9404182 A 19950627; CA 2133259 A1 19950430; CN 1108590 A 19950920; DE 69416928 D1 19990415; DE 69416928 T2 19991111; JP H07186030 A 19950725; KR 950011056 A 19950515
DOCDB simple family (application)
EP 94117033 A 19941027; AU 7586794 A 19941017; BR 9404182 A 19941020; CA 2133259 A 19940929; CN 94116037 A 19941026; DE 69416928 T 19941027; JP 25655394 A 19941021; KR 19940027066 A 19941022