SPECTACLE LENS AND METHOD FOR GENERATING DESIGN DATA FOR A SPECTACLE LENS

    公开(公告)号:EP4390515A1

    公开(公告)日:2024-06-26

    申请号:EP22215983.2

    申请日:2022-12-22

    IPC分类号: G02C7/02

    摘要: Provided is a computer-implemented method for generating design data for a spectacle lens suitable for the purpose of a use of the design data for manufacturing the spectacle lens having a prescribed power and an edge contour fitted to an predefined spectacle frame. The method comprises providing prescription information regarding the prescribed power for the spectacle lens and geometrical information regarding the predefined spectacle frame. Moreover, the method comprises optimizing a geometrical profile of at least one surface of the spectacle lens;
    characterized in that the method further comprises
    - optimizing a spatial variation of a refractive index of the spectacle lens;
    wherein the optimizing the geometrical profile of at least one surface of the spectacle lens and the optimizing the spatial variation of the refractive index of the spectacle lens are carried out such that an optical power of the spectacle lens corresponds to the prescribed power and an edge thickness of an edge contour of the spectacle lens fitted to the geometrical information regarding the predefined spectacle frame varies by 0,5 mm or less over the edge contour.

    METHOD OF PROVIDING REFRACTIVE MICROSTRUCTURES ON A SURFACE OF A SPECTACLE LENS AND SPECTACLE LENS DESIGN

    公开(公告)号:EP4292798A1

    公开(公告)日:2023-12-20

    申请号:EP22178842.5

    申请日:2022-06-14

    IPC分类号: B29D11/00

    摘要: A method of providing refractive microstructures (5) on a surface (4) of a spectacle lens body (3) is provided.
    The refractive microstructures (5') are formed on the surface (4) by an additive manufacturing process, in which the refractive microstructures (5) are formed by applying a at least one curable material (6) and curing the at least one curable material (6). The additive manufacturing process includes
    - forming a layer (1) of the at least one first curable material (6) where for forming the refractive microstructures (5) an additional amount of the at least one first curable material (6) or an amount of at least one second curable material (16) is applied at locations at which the refractive microstructures (5) shall be formed before curing or pinning the at least one first curable material (6);
    and
    - curing or pinning the layer (1) of the at least one first curable material (6) with the additional amount of the at least one first curable material (6) or with the amount of the at least one second curable material (16) before the additional amount of the at least one first curable material (6) or the amount of the at least one second curable material (16) is fully coalesced in the layer (1) of the at least one curable material (6).
    In addition, a spectacle lens with refractive microstructures (5) is provided. The spectacle lens includes a spectacle lens body (3) with a surface (4) which is provided with the refractive microstructures (5). The refractive microstructures (5) are at least partly merged with a layer (1) present on the surface (4).