公开(公告)号：US10261341B2

公开(公告)日：2019-04-16

申请号：US14442590

申请日：2013-11-13

Applicant: Essilor International

Inventor： Pascal Allione ,  Jean-Pierre Chauveau ,  Daniel Steigelmann

IPC: G02C7/02

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, an 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 εi, —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: - ɛ i ≤ [ ∑ j = 1 m ⁢ ( ∂ P i ∂ α j ) 0 × Δ ⁢ ⁢ α j ] + A i ≤ ɛ i with ⁢ ⁢ ( ∂ P i ∂ α j ) 0 the value of the derivative of Pi with respect to the jth surface parameter αj on the nominal surface and Δαj the value of the jth surface parameter and Ai a combination of terms of order greater or equal to 2 for each Pi.