公开(公告)号：AT388798T

公开(公告)日：2008-03-15

申请号：AT03761572

申请日：2003-06-30

Applicant: ESSILOR INT

Inventor： KELLER GERHARD ,  NEW MARY JANE ,  ARDA KERIM ,  RAWLINS PHILIP JOHN ,  CARMICHAEL ALLAN

IPC: B29C33/00 ,  G02B5/02 ,  B29C33/38 ,  B29C59/02 ,  B29D11/00 ,  B29L11/00 ,  G02B3/00 ,  G02B3/08

Abstract: A process for making a mould piece having a main curved surface bearing an utilitary microstructure which comprises transferring a utilitary microstructure from a master piece main surface to a main surface of a flat cured elastomeric film; pressing the cured elastomeric film and a master article against each other so as to conform the overall shape of said cured elastomeric film to the curved shape of the main surface of the master article and to spread over a curable coating composition between the curved main surface of the master article and the main surface bearing the replica of the said utilitary microstructure of the cured elastomeric film; curing the coating composition; removing the cured elastomeric film and depositing a layer of a metal or a metallic alloy on the exposed main surface of the hard coating of the master article; and recovering said metal or metallic alloy layer to obtain a mould piece having a curved main surface bearing a replica of said transferred utilitary microstructure.