EYEGLASS LENS, COMPOSITION FOR PRIMER LAYER FORMATION, AND METHOD FOR MANUFACTURING EYEGLASS LENS

    公开(公告)号:US20200096785A1

    公开(公告)日:2020-03-26

    申请号:US16698576

    申请日:2019-11-27

    Inventor: Koichi SAKAI

    Abstract: This eyeglass lens is outstanding in anti-crazing properties, impact resistance properties, and adhesion. The present invention comprises: a lens substrate; a primer layer disposed on the lens substrate; and at least one layer that is disposed on the primer layer and that is selected from the group consisting of a hard-coat layer and a reflection-preventing layer. The primer layer contains a polycarbonate-based polyurethane resin and inorganic oxide particles. The tensile strength of the polycarbonate-based polyurethane resin is over 40 N/mm2. The expansion rate of the polycarbonate-based polyurethane resin is at least 300%, and the inorganic oxide particle content is 10-40% by volume with respect to the total volume of the primer layer.

    PROGRESSIVE POWER LENS PAIR, METHOD FOR DESIGNING PROGRESSIVE POWER LENS PAIR AND METHOD FOR MANUFACTURING PROGRESSIVE POWER LENS PAIR

    公开(公告)号:US20190258081A1

    公开(公告)日:2019-08-22

    申请号:US16397691

    申请日:2019-04-29

    Abstract: A progressive power lens pair is provided with an object-side surface and an eyeball-side surface of the right-eye lens and an object-side surface and an eyeball-side surface of the left-eye lens which are set by ensuring that ADDR1−ADDR2 and ADDL1−ADDL2 take values different from each other, when prescribed additional power for the right-eye lens and prescribed additional power for the left-eye lens are equal to each other; and prescription information for the progressive power lens pair indicates: that spherical power SR at the right-eye lens and spherical power SL at the left-eye lens are different from each other, that astigmatic power CR at the right-eye lens and astigmatic power CL at the left-eye lens are different from each other, or that an astigmatism axis angle AxR corresponding to the right-eye lens and an astigmatism axis angle AxL corresponding to the left-eye lens are different from each other.

    EYEGLASS LENS
    44.
    发明申请
    EYEGLASS LENS 审中-公开

    公开(公告)号:US20190154878A1

    公开(公告)日:2019-05-23

    申请号:US16306854

    申请日:2017-05-30

    Abstract: The present invention addresses the problem of providing an eyeglass lens that has excellent UV absorption properties and low yellowness. This eyeglass lens is produced using a resin composition that contains m-xylylene diisocyanate, a polythiol compound, and a UV absorber. The UV absorber contains at least a compound represented by formula (1) and a compound represented by formula (2). The M value represented by formula (X) is greater than 1.40 but less than 3.20.

    EYEGLASS LENS
    45.
    发明申请
    EYEGLASS LENS 审中-公开

    公开(公告)号:US20190137657A1

    公开(公告)日:2019-05-09

    申请号:US16306845

    申请日:2017-05-30

    Abstract: The present invention addresses the problem of providing an eyeglass lens that has excellent UV absorption properties and low yellowness. This eyeglass lens is produced using a resin composition that contains at least one isocyanate compound selected from the group consisting of 2,5-bis(isocyanatomethyl)bicyclo[2.2.1]heptane and 2,6-bis(isocyanatomethyl)bicyclo[2.2.1]heptane; a polythiol compound; a UV absorber represented by formula (1); and a UV absorber represented by formula (2). The M value represented by formula (X) is greater than 0.7 but less than 16.7.

    SPECTACLE LENS
    47.
    发明申请
    SPECTACLE LENS 审中-公开

    公开(公告)号:US20180067339A1

    公开(公告)日:2018-03-08

    申请号:US15807126

    申请日:2017-11-08

    Inventor: So MIYAMOTO

    Abstract: Provided is a spectacle lens (1) comprising one multilayer film (3a, 3b) on each surface of a plastic lens base material (2), wherein by setting an average reflection rate in at least the 530-570 nm wavelength range to 2.5-5.5% in at least one of the multilayer films (3a, 3b) disposed on a surface of the plastic lens base material, it is possible to attain, in dim environments, an improvement in vividness and brightness in visibility of objects, particularly those that are red in color, as well as an improvement in visibility of the white in white computer screens and the like, and the lens is thereby suitable for the eyes of elderly people.

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