Determining method for an ophthalmic lens with optimized thickness

    公开(公告)号:US11940673B2

    公开(公告)日:2024-03-26

    申请号:US16770421

    申请日:2018-12-05

    CPC classification number: G02C7/027 B29D11/00432 B33Y80/00 G02C2202/16

    Abstract: A method of determining at least one parameter of an ophthalmic lens (40) including a complementary optical element (12) obtained by additive manufacturing and configured to provide at least a part of the optical function of the ophthalmic lens, the determining method including a step of providing two characterizing surfaces simulating two opposite surfaces of a complementary optical element (12), the distance between the two characterizing surfaces along a thickness axis (Z) defining the thickness of the complementary optical element; a step of optimizing the distance between the two characterizing surfaces (20) along the thickness axis (Z) so that the thickness of the complementary optical element reaches a thickness threshold while complying with the optical function of the ophthalmic lens (40); and a step of determining at least one parameter of the ophthalmic lens (40) on the basis of the optimized distance.

    Method for additively manufacturing an opthalmic lens and opthalmic lens

    公开(公告)号:US11472141B2

    公开(公告)日:2022-10-18

    申请号:US16770361

    申请日:2018-12-05

    Abstract: A method of manufacturing an ophthalmic lens, including: a step of providing a starting optical system (30) having a first optical function and a first main refractive index; a step of providing a transition layer (20) intended to be disposed between the starting optical system (30) and a complementary optical element (12) having a second main refractive index, the transition layer (20) aiming at reducing unwanted reflection caused by the mismatch between the first and the second main refractive index, the transition layer (20) having a transition optical function; and a step of additively manufacturing the complementary optical element (12) on the transition layer (20), the complementary optical element (12) having a second optical function, the second optical function being predetermined as a function of the first optical function and of the transition optical function.

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