METHOD FOR PRODUCING RESIN FOR OPTICAL COMPONENT, RESIN FOR OPTICAL COMPONENT, SPECTACLE LENS, AND SPECTACLES

    公开(公告)号:US20190225771A1

    公开(公告)日:2019-07-25

    申请号:US16367698

    申请日:2019-03-28

    Inventor: Masahisa KOUSAKA

    Abstract: A method for producing an optical component resin, suppressing yellowing due to addition of an ultraviolet absorber, an optical component resin, a spectacle lens, and spectacles. A method for producing an optical component resin, including a step of polymerizing a polymerizable composition containing a polythiol component, a polyisocyanate component, and an ultraviolet absorber, in which the ultraviolet absorber has a Hazen color number (APHA) of 40 or less in a toluene solution thereof having a concentration of 10% by mass, an optical component resin obtained by the producing method, an optical component formed of the optical component resin, a spectacle lens including a lens substrate formed of the optical component resin, and spectacles including the spectacle lens.

    Progressive power lens and method of designing and manufacturing the same

    公开(公告)号:US10185159B2

    公开(公告)日:2019-01-22

    申请号:US15513394

    申请日:2015-09-24

    Abstract: Provided is a technology relating to a progressive power lens including a near region for seeing an object at a near distance, a specific region for seeing an object at a far distance in relation to the near distance, and an intermediate region provided as a region between the specific region and the near region and having a power progressing from the specific region toward the near region, in which a power exceeding zero is added to a prescription power of the specific region so that a power corresponding to a predetermined target distance which is a distance between the near distance and the far distance is provided at a predetermined part of the intermediate region.

    POLYMERIZABLE COMPOSITION, OPTICAL MEMBER, PLASTIC LENS, AND EYEGLASS LENS

    公开(公告)号:US20180100033A1

    公开(公告)日:2018-04-12

    申请号:US15561303

    申请日:2016-03-25

    Inventor: Takayuki IIJIMA

    Abstract: Provided are a polymerizable composition allowing obtainment of an optical component with reduced striae, an optical component obtained from the polymerizable composition, a plastic lens containing the optical component, and a spectacle lens including a lens substrate including the optical component. The polymerizable composition of the present disclosure contains an isocyanate component which contains alicyclic polyisocyanate (A-1) having two or more isocyanate groups and non-cyclic aliphatic polyisocyanate (A-2) having two or more isocyanate groups, and a polythiol component which contains polythiol (B-1) having four or more mercapto groups and two or more sulfide bonds and polythiol (B-2) having two or three mercapto groups and two or three ester bonds. The optical component is obtained by polymerizing the polymerizable composition of the present disclosure. The plastic lens contains the optical component of the present disclosure. The spectacle lens includes a lens substrate which includes the optical component.

    SPECTACLE LENS AND SPECTACLES
    249.
    发明申请

    公开(公告)号:US20170299896A1

    公开(公告)日:2017-10-19

    申请号:US15532046

    申请日:2015-12-01

    Abstract: Provided a spectacle lens including a lens base material and a multilayer film provided on each surface of an eyeball-side surface and an object-side surface of the lens base material, in which a mean reflectance RB(object) in a wavelength range of 430 to 450 nm measured on the object-side surface of the spectacle lens is equal to or more than 1.00%, and a mean reflectance RUV(eye) in a wavelength range of 280 to 380 nm measured on the eyeball-side surface of the spectacle lens is less than or equal to 15.00%.

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