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1. (WO2018146125) A SET INCLUDING A SEMI-FINISHED OPTICAL ELEMENT AND A BLOCKING DEVICE; AND A METHOD FOR PROVIDING SUCH A SET

Pub. No.:    WO/2018/146125    International Application No.:    PCT/EP2018/053025
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Thu Feb 08 00:59:59 CET 2018
IPC: B24B 13/005
Applicants: ESSILOR INTERNATIONAL
Inventors: MOINE, Jérome
MARTIN, Luc
PINAULT, Sébastien
BULTEZ, Xavier
Title: A SET INCLUDING A SEMI-FINISHED OPTICAL ELEMENT AND A BLOCKING DEVICE; AND A METHOD FOR PROVIDING SUCH A SET
Abstract:
The set further comprises a molding device having a molding face having the same shape as a contact face (19) of the blocking device (13). A removable overlay (12) of rigid material has a first face (17) attached to a first face (14) of the semi-finished optical element (11) and a second face (18) opposite to the first face (17) having the same shape as the contact face (19) of the blocking device (13), said set being configured for having a first subset configuration in which the second face (18) of the removable overlay (12) is in molding contact with the molding face of the molding device, then a second subset configuration in which the second face (18) of the removable overlay (12) is free and then a third subset configuration in which the second face (18) of the removable overlay (12) is retained in contact with the contact face (19) of the blocking device.