A SYSTEM AND A METHOD FOR MONITORING THE POSITION OF A BLOCKING DEVICE, AND A METHOD OF EDGING AN OPHTHALMIC LENS

A system for monitoring the position of a blocking device on an ophthalmic lens (20) having at least one marking comprises: - a mechanical structure adapted to cooperate with the blocking device; - an image sensor (4) observing the ophthalmic lens (20); - a control unit (10) connected to the image s...

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Bibliographic Details
Main Authors ROUSSEL, Laurent, AKBAL, Jean-René, GRAND-CLEMENT, Didier, DECORCE, Olivier
Format Patent
LanguageEnglish
French
German
Published 03.03.2021
Subjects
DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
MEASURING
PERFORMING OPERATIONS
PHYSICS
POLISHING
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
TRANSPORTING
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Summary:A system for monitoring the position of a blocking device on an ophthalmic lens (20) having at least one marking comprises: - a mechanical structure adapted to cooperate with the blocking device; - an image sensor (4) observing the ophthalmic lens (20); - a control unit (10) connected to the image sensor (4) and configured to produce an image having a point of reference with a determined position with respect to the mechanical structure and at least part of the ophthalmic lens (20) including said marking; and - a user interface (12) adapted to display a blocking device positional compensation proposal based on the comparison to a predetermined threshold of a distance between the point of reference and the marking on the image. A corresponding method and a method for edging an ophthalmic lens are also proposed.
Bibliography:Application Number: EP20170306330