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    SPECTACLE LENS AND METHOD FOR GENERATING DESIGN DATA FOR A SPECTACLE LENS
    7.
    发明公开
    SPECTACLE LENS AND METHOD FOR GENERATING DESIGN DATA FOR A SPECTACLE LENS 审中-公开

    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

    Applicant: Carl Zeiss Vision International GmbH

    Inventor： GLÖGE, Thomas ,  REESE, Martin

    IPC: G02C7/02

    CPC classification number: G02C7/022 ,  G02C7/024 ,  G02C2202/1220130101 ,  B29D11/00009 ,  B29D11/00432 ,  B29D11/00355

    Abstract: 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.

    INK JET PRINTING METHOD OF TINTING A SPECTACLE LENS AND TINTED SPECTACLE LENS
    10.
    发明公开
    INK JET PRINTING METHOD OF TINTING A SPECTACLE LENS AND TINTED SPECTACLE LENS 审中-公开

    公开(公告)号：EP4368380A1

    公开(公告)日：2024-05-15

    申请号：EP22206783.7

    申请日：2022-11-10

    Applicant: Carl Zeiss Vision International GmbH

    Inventor： LIU, Yujing ,  REESE, Martin ,  WEIS, Philipp ,  HUGENBERG, Norbert ,  KARIM, Waiz

    IPC: B29D11/00

    CPC classification number: B29D11/00009 ,  B29D11/00923 ,  B29D11/00317

    Abstract: An ink jet printing method of tinting a spectacle lens substrate comprising the steps: (a) providing a spectacle lens substrate having a front surface and a back surface, wherein said spectacle lens substrate can be precoated, (b) printing droplets of at least a first inkjet printing ink (PI1) to form at least a first layer (L1) and droplets of at least a second inkjet printing ink (PI2) to form at least a second layer (L2) on at least one of said front surface and back surface, wherein at least one of said at least first inkjet printing ink (PI1) and said at least second inkjet printing ink (PI2) is colored, said at least first layer (L1) and said at least second layer (L2), each covering fully or partially at least one of said front surface and back surface, forming a stack which covers at least one of said front surface and back surface, wherein said at least first layer (L1) and said at least second layer (L2) are at least partially overlapping in said stack, (c) curing said at least first layer (L1) and said at least second layer (L2) together in a combined curing step. Moreover the invention is directed to a tinted spectacle lens having a front surface and a back surface wherein said tinted spectacle lens comprises a color design on at least one of said front surface and back surface, said color design is selected from the group consisting of a non-linear color gradient, contoured di- or polychromatic pattern, contoured di- or polychromatic figure, di- or polychromatic alphabetic code, di- or polychromatic numerical code, di- or polychromatic alphanumerical code, and combinations thereof.

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