METHOD FOR DETERMINING THE FEASIBILITY OF AN OPHTHALMIC LENS

    公开(公告)号:CA2891568C

    公开(公告)日:2021-11-02

    申请号:CA2891568

    申请日:2013-11-13

    Applicant: ESSILOR INT

    Abstract: Method for determining the feasibility of an ophthalmic lens by an ophthalmic lens manufacturing process comprising: an ophthalmic lens data providing step, a set of surface parameters providing step, a optical parameters providing step during which a set of n optical parameters (P1, P2,...Pn) is provided, n being an integer greater than or equal to 1, each optical parameter Pi being provided with a tolerance value ei, a feasibility check determining step, during which the feasibility of the ophthalmic lens by the ophthalmic lens manufacturing process is determined by determining if for i from 1 to n : formula (I) with formula (II) the value of the derivative of Pi with respect to the jth surface parameter aj on the nominal surface and ? aj the value of the jth surface parameter and Ai a combination of terms of order greater or equal to 2 for each Pi.

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