公开(公告)号：US20210356764A1

公开(公告)日：2021-11-18

申请号：US17281126

申请日：2019-09-27

Applicant: HOYA LENS THAILAND LTD.

Inventor： Tadashi KAGA

IPC: G02C7/06 ,  G02C7/02

Abstract: A design system of a progressive addition lens including a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion provided between the near portion and the distance portion and having a progressive refraction function, the design system of a progressive addition lens includes an aberration amount setting unit that sets an amount of transmission astigmatism Δβ[D] added to a progressive addition lens in such a way that when a wearer of the progressive addition lens α to which transmission astigmatism of an aberration amount Δα[D] is added is provided with the progressive addition lens β having different parameters, visual performance when the progressive addition lens β is worn approaches visual performance when the progressive addition lens α is worn.

公开(公告)号：US20210341758A1

公开(公告)日：2021-11-04

申请号：US17280953

申请日：2019-09-27

Applicant: HOYA LENS THAILAND LTD.

Inventor： Hiroshi ASAMI ,  Yasunori IZAWA ,  Tadashi KAGA

IPC: G02C7/06

Abstract: A progressive addition lens and the related technology, the progressive addition lens including: a near portion for viewing a near distance, a distance portion for viewing a distance farther than the near distance, and an intermediate portion between the near portion and the distance portion and having a progressive refraction function, in which the transmission astigmatism is added to the near portion and the intermediate portion of the distance portion, the near portion, and the intermediate portion, and in the near portion and the intermediate portion to which the transmission astigmatism is added, after subtracting the refractive power for astigmatism correction, the progressive addition lens further includes a portion where the amount of vertical refractive power is greater than the amount of horizontal refractive power.

公开(公告)号：US20210325693A1

公开(公告)日：2021-10-21

申请号：US17360237

申请日：2021-06-28

Applicant: HOYA LENS THAILAND LTD.

Inventor： Takumi NOMURA

IPC: G02C7/02

Abstract: The spectacle lens includes a coating film containing tungsten oxide particles, tin oxide particles, and silver particles on a surface of a lens substrate.

公开(公告)号：US20210317255A1

公开(公告)日：2021-10-14

申请号：US17217708

申请日：2021-03-30

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahito IGARI ,  Yuko ARAI ,  Takumi NAGASAWA

IPC: C08G18/38 ,  C08G18/76 ,  C08K5/521

Abstract: The disclosure provides a polymerizable composition for optical materials with which a thiourethane-based optical material with suppressed coloration can be prepared stably with good reproducibility even though a polyene compound and an aromatic polyisocyanate are used, a method for producing the same, and the like. A method for producing a polymerizable composition for optical materials, the polymerizable composition comprising an aromatic polyisocyanate, a polyene compound having two or more ethylenically unsaturated double bonds and having a halogen concentration of 1 ppm or more and less than 150 ppm, and a polythiol.

公开(公告)号：US20210301063A1

公开(公告)日：2021-09-30

申请号：US17217721

申请日：2021-03-30

Applicant: HOYA LENS THAILAND LTD.

Inventor： Yuko ARAI ,  Takumi NAGASAWA ,  Masahito IGARI

IPC: C08G18/38 ,  C08G18/76 ,  C08G18/75 ,  C08G18/72

Abstract: The disclosure provides a polymerizable composition for optical materials that can achieve a cured product with a high refractive index and a small yellowness index ΔYI even though an aromatic polyisocyanate is used, a transparent resin and a method for producing the same using the polymerizable composition, a lens base material and a method for producing the same using the polymerizable composition, and the like. A polymerizable composition for optical materials, at least including an aromatic polyisocyanate, a polyene compound having two or more ethylenically unsaturated double bonds, and 30 to 80% by mass of a polythiol having three or more mercapto groups; wherein the polymerizable composition has a mercapto group/(isocyanate group+ethylenically unsaturated double bond) equivalent ratio of 1.10 to 1.70.

公开(公告)号：US11002991B2

公开(公告)日：2021-05-11

申请号：US16018785

申请日：2018-06-26

Applicant: HOYA LENS THAILAND LTD.

Inventor： Hitoshi Kamura ,  Yoichi Ogo ,  Yoshitaka Matsui ,  Kenji Takashiba

IPC: G02C7/10 ,  G02C7/02 ,  G02B5/22 ,  G02B5/28 ,  B32B7/02 ,  G02B5/26

Abstract: Provided is a spectacle lens including a lens substrate, a multilayer film located on an object-side surface of the lens substrate, and a multilayer film located on an eyeball-side surface of the lens substrate, wherein a blue light absorption rate is 10.0% or higher, the lens substrate includes a blue-light-absorbing compound, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is in a range of 10.0% to 20.0%, and a luminous reflectance measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is less than 2.0%.

公开(公告)号：US10747025B2

公开(公告)日：2020-08-18

申请号：US15028646

申请日：2014-10-17

Applicant: HOYA LENS THAILAND LTD.

Inventor： Daisuke Ogaya ,  Masaki Ihara ,  Akinori Yamamoto ,  Toshihiko Shimizu ,  Kenichi Tonouchi

IPC: G02C7/12 ,  B29C65/56 ,  B29D11/00 ,  G02B1/08 ,  G02B1/18 ,  G02B5/30 ,  G02B30/25 ,  B29K29/00 ,  B29K709/08 ,  B29L11/00

Abstract: A polarizing lens including a polarizing polyvinyl alcohol film arranged between two pieces of a lens base material, where the polarizing polyvinyl alcohol film includes a hydrophobic region having higher hydrophobicity than other regions at least at a partial region of an outer periphery part including an edge surface thereof and the hydrophobic region is exposed at least at a part of an edge surface of the lens.

公开(公告)号：US10718961B2

公开(公告)日：2020-07-21

申请号：US15038829

申请日：2014-11-26

Applicant: HOYA LENS THAILAND LTD.

Inventor： Yoshitaka Matsui ,  Yoichi Ogo ,  Koushi Harada

IPC: G02C7/10 ,  G02B5/28

Abstract: An aspect of the present invention relates to a spectacle lens including a multilayer film of a vapor deposition film (excluding a metal film and a metal alloy film) directly or indirectly at least on one surface of a lens substrate. The multilayer film includes at least one high refractive index layer and at least one low refractive index layer, the total optical film thickness of the high refractive index layer is λ/4 or more at a wavelength λ=780 nm, and a reflection spectrum measured in a wavelength range of 380 to 2000 nm on a surface having the multilayer film has a maximum reflectance in a wavelength range of 800 to 1350 nm.

公开(公告)号：US10465036B2

公开(公告)日：2019-11-05

申请号：US15515167

申请日：2015-09-09

Applicant: HOYA LENS THAILAND LTD.

Inventor： Takayuki Iijima ,  Masahisa Kousaka

IPC: C08G18/38 ,  C08G18/72 ,  G02B1/04 ,  G02C7/02 ,  C08G18/73 ,  C08G18/75 ,  C08G18/24

Abstract: A polymerizable composition which can suppress generation of turbidity, optical distortion, and striae in a transparent resin obtained therefrom, a transparent resin obtained from the polymerizable composition, an optical material containing the transparent resin, a plastic lens containing the optical material, and a method for manufacturing the transparent resin. The present disclosure is a polymerizable composition containing a polythiol compound having at least three mercapto groups and a polyiso(thio)cyanate compound. The polyiso(thio)cyanate compound contains only a polyiso(thio)cyanate compound having no aromatic ring, and a thiol equivalent ratio which is a measured value of a thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.900 or more and less than 1.000.

公开(公告)号：US20190302480A1

公开(公告)日：2019-10-03

申请号：US16307458

申请日：2017-06-06

Applicant: HOYA LENS THAILAND LTD.

Inventor： Takashi HATANAKA ,  Tomohiro ODAIRA

IPC: G02C7/06 ,  G02C7/02

Abstract: In a spectacle lens added with prism thinning, a spherical refractive power of a first refractive portion is positive, and a prism base direction of a prism provided at a prism measurement reference point is set toward a second refractive portion side; a mean value of a difference of a mean curvature in a lens curved surface along a direction passing through a midpoint of a connecting line between two alignment reference marks and orthogonal to the connecting line with respect to a mean curvature in a lens curved surface along a direction of a lens without prism is smaller in a first-refractive-portion-side region from a fitting point than that in a second-refractive-portion-side region from the fitting point.