Global Patent Index - EP 3966363 B1

EP 3966363 B1 20221026 - METHOD FOR SMOOTHING SURFACES

Title (en)

METHOD FOR SMOOTHING SURFACES

Title (de)

VERFAHREN ZUM GLÄTTEN VON OBERFLÄCHEN

Title (fr)

PROCÉDÉ DE LISSAGE DE SURFACES

Publication

EP 3966363 B1 20221026 (DE)

Application

EP 20724451 A 20200504

Priority

  • DE 102019111681 A 20190506
  • DE 102019111684 A 20190506
  • EP 2020062348 W 20200504

Abstract (en)

[origin: WO2020225225A1] The present invention relates to a method for smoothing surfaces (12), with which method surfaces (12) can be smoothed more effectively than before and can also be smoothed in a direct machining method. Above all, surfaces (12) of metal optics, particularly aluminium-based optics (10) can be smoothed more effectively than before. The optical properties (refractive index and coefficient of absorption) of surfaces (24) smoothed in such a way remain substantially unchanged. Furthermore, the smoothed surfaces (24) have a high long-term stability with regard to their chemical and/or mechanical resistance and their geometric and/or optical properties.

IPC 8 full level

C23F 4/00 (2006.01); C23G 5/00 (2006.01)

CPC (source: EP)

C23F 4/00 (2013.01); C23G 5/00 (2013.01)

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)

WO 2020225225 A1 20201112; EP 3966363 A1 20220316; EP 3966363 B1 20221026; ES 2935471 T3 20230307

DOCDB simple family (application)

EP 2020062348 W 20200504; EP 20724451 A 20200504; ES 20724451 T 20200504