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    Method of designing progressive refractive power lens, and lens set
    111.
    发明授权
    Method of designing progressive refractive power lens, and lens set 有权

    公开(公告)号：US10401649B2

    公开(公告)日：2019-09-03

    申请号：US15576262

    申请日：2016-05-26

    Applicant: HOYA LENS THAILAND LTD. ,  Hiroshi Asami ,  Ayumu Ito

    Inventor： Hiroshi Asami ,  Ayumu Ito

    IPC: G02C7/02 ,  G02C7/06

    Abstract: When an addition power at a position corresponding to a fitting point within a prescription addition power is greater than a target addition power set according to a target distance, the target addition power is set as an addition power between a progression-start point and a progression-end point on a principal meridian, and in addition the average gradient of an addition power between the progression-start point and the fitting point is set to differ from an average gradient of an addition power between the fitting point and the progression-end point. When the addition power at the position corresponding to the fitting point within the prescription addition power is equal to or smaller than the target addition power, a gradient of the addition power is made constant in a partial region including at least the fitting point between the progression-start point and the progression-end point on the principal meridian.

    SPECTACLE LENS
    113.
    发明申请
    SPECTACLE LENS 审中-公开

    公开(公告)号：US20190212580A1

    公开(公告)日：2019-07-11

    申请号：US16298917

    申请日：2019-03-11

    Applicant: HOYA LENS THAILAND LTD. ,  THE HONG KONG POLYTECHNIC UNIVERSITY

    Inventor： Chi Ho TO ,  Siu Yin LAM ,  Takashi HATANAKA ,  Yasutake MASUDA

    IPC: G02C7/06

    CPC classification number: G02C7/06 ,  G02C2202/24

    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.

    Polyisocyanate monomer composition for optical members, and optical member and production method therefor
    114.
    发明授权
    Polyisocyanate monomer composition for optical members, and optical member and production method therefor 有权

    公开(公告)号：US10329373B2

    公开(公告)日：2019-06-25

    申请号：US15129852

    申请日：2015-03-05

    Applicant: HOYA LENS THAILAND LTD.

    Inventor： Yuji Hoshi ,  Masahisa Kousaka

    IPC: C08G18/76 ,  C08G18/24 ,  G02B1/04 ,  C08L75/04 ,  C08L75/08 ,  C08G18/38 ,  C08G18/48

    Abstract: Provided are a polyisocyanate monomer composition for optical members, from which an optical members with which turbidity and clouding are difficult to occur during the production thereof, and which is excellent in transparency, can be obtained, and an optical member and production methods therefor. A polyisocyanate monomer composition for optical members, including 4,4′-diphenylmethane diisocyanate and at least one kind selected from 2,4′-diphenylmethane diisocyanate and 2,2′-diphenylmethane diisocyanate; an optical member formed of a polymer having a structure represented by the following formula (1), and at least one kind of structure represented by the following formula (2) or (3); and a method for producing an optical member, including a step of polymerizing a monomer composition including a polyisocyanate compound including 4,4′-diphenylmethane diisocyanate and at least one kind selected from 2,4′-diphenylmethane diisocyanate and 2,2′-diphenylmethane diisocyanate, and at least one kind selected from a polythiol compound and a polyol compound.

    Spectacle lens
    115.
    发明授权
    Spectacle lens 有权

    公开(公告)号：US10268050B2

    公开(公告)日：2019-04-23

    申请号：US14935322

    申请日：2015-11-06

    Applicant: Hoya Lens Thailand Ltd. ,  The Hong Kong Polytechnic University

    Inventor： Chi Ho To ,  Siu Yin Lam ,  Takashi Hatanaka ,  Yasutake Masuda

    IPC: G02C7/06

    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.

    Progressive power lens
    116.
    发明授权
    Progressive power lens 有权

    公开(公告)号：US10203523B2

    公开(公告)日：2019-02-12

    申请号：US15518158

    申请日：2015-10-09

    Applicant: HOYA LENS THAILAND LTD.

    Inventor： Kazuma Kozu ,  Takao Tanaka

    IPC: G02C7/06

    Abstract: Progressive power lens including: object side surface; eyeball side surface; and at least a near portion having a power for near vision, wherein object side surface includes power change in vertical direction of lens having progressive refractive power function, eyeball side surface includes power change in horizontal direction of lens having progressive refractive power function, when surface refractive power in the horizontal direction is defined as DHn and surface refractive power in vertical direction is defined as DVn in near power measurement point N in object side surface, relational expression of DHn

    Progressive power lens group
    117.
    发明授权
    Progressive power lens group 有权

    公开(公告)号：US10203520B2

    公开(公告)日：2019-02-12

    申请号：US15513366

    申请日：2015-09-24

    Applicant: HOYA LENS THAILAND LTD.

    Inventor： Tomohiro Odaira ,  Yasunori Izawa

    IPC: G02C7/02 ,  G02C7/06

    Abstract: A progressive power lens group includes a plurality of progressive power lenses 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 near power at the near region is common in the plurality of progressive power lenses and a power corresponding to a predetermined common target distance which is a distance between the near distance and the far distance is provided at a predetermined part of the intermediate region.

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