BLOCKING DEVICE FOR A SEMI-FINISHED OPTICAL ELEMENT

The blocking device comprises a blocking portion (21) configured for blocking said semi-finished optical element (11) and comprising a support member configured for providing a rigid support to said semi-finished optical element, said support member including a support element (23) made of a shape-m...

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Bibliographic Details
Main Authors BULTEZ, XAVIER, PINAULT, SÉBASTIEN, MOINE, JÉRÔME, MARTIN, LUC
Format Patent
LanguageEnglish
Polish
Published 11.04.2023
Subjects
DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
PERFORMING OPERATIONS
POLISHING
TRANSPORTING
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Summary:The blocking device comprises a blocking portion (21) configured for blocking said semi-finished optical element (11) and comprising a support member configured for providing a rigid support to said semi-finished optical element, said support member including a support element (23) made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above said predetermined temperature, said support element (23) assuming in the absence of external forces a predetermined memory shape when heated above said predetermined temperature, said support member having a contact face (25) onto which said first face (14) of said semi-finished optical element (11) is to be applied; saind blocking portion (21) including at least one of (i) a heating device (36) configured for heating said support element above said predetermined temperature and (ii) a cooling device (36) configured for cooling said support element below said predetermined temperature.
Bibliography:Application Number: PL20170305709T