公开(公告)号：US12158412B2

公开(公告)日：2024-12-03

申请号：US18161245

申请日：2023-01-30

Applicant: FUJIFILM Corporation

Inventor： Yujiro Yanai

IPC: G01N21/21 ,  G01N33/66

Abstract: Provided are a concentration measuring method of an optically active substance and a concentration measuring device of an optically active substance, which can easily and accurately measure a concentration of the optically active substance in aqueous humor. The concentration measuring method of an optically active substance includes: a first step of measuring a polarization state of a first reflected light that is obtained by irradiating an aqueous humor in an eye with an incidence light which is polarized and reflecting the incidence light at an interface between the aqueous humor and a lens, in which the polarization state of the first reflected light is measured by irradiating a first incidence light such that an angle between a normal line to a point where the incidence light intersects a surface of the lens, and the incidence light is equal to or smaller than a Brewster angle; a second step of measuring a polarization state of a second reflected light by irradiating with a second incidence light such that an angle of the incidence light is equal to or larger than the Brewster angle; a third step of calculating an optical rotation of the aqueous humor with information on the polarization state of the first reflected light and information on the polarization state of the second reflected light; and a fourth step of calculating a concentration of an optically active substance in the aqueous humor from the optical rotation of the aqueous humor.

公开(公告)号：US10386569B2

公开(公告)日：2019-08-20

申请号：US15672727

申请日：2017-08-09

Applicant: FUJIFILM Corporation

Inventor： Yujiro Yanai ,  Yukito Saitoh ,  Akira Yamamoto ,  Nobuhiko Ichihara ,  Daisuke Kashiwagi ,  Michio Nagai

IPC: F21V8/00 ,  G02B5/02 ,  G02B5/30 ,  G02F1/137 ,  G02F1/1335 ,  G02F1/13357

Abstract: Provided is an optical member having a high brightness, a low haze, and a small color change, an optical element, a liquid crystal display device, and a near-to-eye optical member. The optical member includes a plurality of cholesteric liquid crystal dots that are provided on a substrate, in which a shape of each of the dots is a hemispherical or elliptical hemispherical shape in which the substrate side is planar, a conical or elliptical conical shape in which the substrate side is set as the bottom, or a shape in which a plurality of shapes selected from the shapes are laminated, the cholesteric liquid crystal dot has a reflection center wavelength with respect to visible light, the cholesteric structure of the dot has a stripe pattern including bright portions and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope, the dot includes a portion having a height which continuously increases to a maximum height in a direction moving from an end portion of the dot to the center of the dot, and in the portion, an angle between a normal line perpendicular to a line, which is formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot is in a range of 70° to 90°.

公开(公告)号：US20190196245A1

公开(公告)日：2019-06-27

申请号：US16289038

申请日：2019-02-28

Applicant: FUJIFILM Corporation

Inventor： Nobuhiko Ichihara ,  Yujiro Yanai ,  Rikio Inoue ,  Michio Nagai ,  Jun Takeda

IPC: G02F1/1347 ,  G02F1/1335

CPC classification number: G02F1/13473 ,  B32B7/02 ,  G02B5/30 ,  G02F1/133533 ,  G02F2001/133543

Abstract: An object of the present invention is to provide a decorative sheet exhibiting high lustrousness even when observed from a direction deviated from a specular reflection of illumination light, and a liquid crystal display device and an automobile interior material each using the decorative sheet. The object is achieved by a decorative sheet including a cholesteric liquid crystal layer having wavelength-selective reflectivity and satisfying Expression (1), R[−45,20](λ1)/R[−45,20](λ2)≥5  Expression (1).

公开(公告)号：US11933987B2

公开(公告)日：2024-03-19

申请号：US17696416

申请日：2022-03-16

Applicant: FUJIFILM Corporation

Inventor： Jun Ishiyama ,  Fumitake Mitobe ,  Yujiro Yanai

IPC: G02B27/01 ,  G02F1/1335 ,  G02F1/13363

CPC classification number: G02B27/0172 ,  G02F1/133509 ,  G02F1/133638 ,  G02B2027/0178

Abstract: Provided are an optical filter, an optical device, and a head-mounted display which have a high light transmittance in a front direction and a wide real field of view. The optical filter includes a first anisotropic absorption layer, a first retardation layer, and a second anisotropic absorption layer in this order, each of the first anisotropic absorption layer and the second anisotropic absorption layer contains a dichroic colorant, an absorption axis of the dichroic colorant is perpendicular to a main surface, and the first retardation layer has polar angle dependence of retardation that has asymmetry about a normal direction with respect to incident light hitting at least one incident surface including a normal of a layer surface of the first retardation layer.

公开(公告)号：US11513395B1

公开(公告)日：2022-11-29

申请号：US17828540

申请日：2022-05-31

Applicant: FUJIFILM Corporation

Inventor： Keisuke Kodama ,  Yujiro Yanai ,  Takeharu Tani ,  Shunya Katoh

IPC: G02F1/13363 ,  G02F1/137 ,  G01J1/04

Abstract: Provided are a bandpass filter having a high light transmittance in a transmission band and a wide wavelength range showing a high transmittance in the transmission band, and a sensor. The bandpass filter is a bandpass filter including a reflective member A and a reflective member B, in which a difference between a reflection center wavelength of the reflective member A and a reflection center wavelength of the reflective member B is larger than a sum of a half width at half maximum of a reflection band of the reflective member A and a half width at half maximum of a reflection band of the reflective member B; the reflective member A has a first cholesteric liquid crystal layer and a second cholesteric liquid crystal layer, and birefringence Δn1 of the first cholesteric liquid crystal layer is larger than birefringence Δn2 of the second cholesteric liquid crystal layer; and the reflective member B has a third cholesteric liquid crystal layer and a fourth cholesteric liquid crystal layer, and birefringence Δn3 of the third cholesteric liquid crystal layer is larger than birefringence Δn4 of the fourth cholesteric liquid crystal layer.

公开(公告)号：US10928568B2

公开(公告)日：2021-02-23

申请号：US16164231

申请日：2018-10-18

Applicant: FUJIFILM Corporation

Inventor： Yujiro Yanai

IPC: G02B5/23 ,  G02F1/13 ,  G02F1/1347 ,  G02F1/1335 ,  G02F1/13357 ,  G02B5/30

Abstract: An optical device includes a polarizing plate; a composite film which contains a liquid crystal compound aligned in a thickness direction and a photochromic material and in which optical characteristics of the photochromic material are changed by emitting light and a light transmittance in the thickness direction becomes smaller than a light transmittance in a direction orthogonal to the thickness; and a light-emitting unit which emits light changing the optical characteristics of the photochromic material of the composite film.

公开(公告)号：US10670921B2

公开(公告)日：2020-06-02

申请号：US16185454

申请日：2018-11-09

Applicant: FUJIFILM Corporation

Inventor： Yujiro Yanai

IPC: G02F1/13363 ,  G02F1/1335 ,  G02B5/30 ,  G02F1/11

Abstract: A viewing angle control film includes, in order, a first polarizer in which an absorption axis is in a direction perpendicular to a film surface; a first phase difference plate which is a λ/4 plate and has a patterned optical anisotropic layer; and a second phase difference plate which is a λ/4 plate and has a patterned optical anisotropic layer, in which the patterned optical anisotropic layers have a constant phase difference and are divided into a plurality of belt-like regions in the same plane, directions of slow axes in one belt-like region match each other and directions of slow axes of belt-like regions adjacent to each other are different from each other in the patterned optical anisotropic layer, and the belt-like region of the first phase difference plate and the belt-like region of the second phase difference plate are disposed so as to intersect with each other in a plane direction.

公开(公告)号：US10481311B2

公开(公告)日：2019-11-19

申请号：US16197799

申请日：2018-11-21

Applicant: FUJIFILM Corporation

Inventor： Yujiro Yanai ,  Michio Nagai ,  Akira Yamamoto

IPC: G02B5/30 ,  G03B21/60 ,  G03B21/00 ,  G03B21/14 ,  G09F15/02 ,  G03B21/28 ,  G03B21/604

Abstract: Provided are a transparent film that allows scenery to be observed without color unevenness in a state where light is not irradiated, a transparent screen and an image display system including the transparent film, and a transparent poster. The transparent film includes: a support; a dot array that is formed on one surface of the support and in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and an overcoat layer that covers the dots and is laminated on the support, in which areas of the dots and distances between the dots are made to be irregular. As a result, the object is achieved.

公开(公告)号：US09535289B2

公开(公告)日：2017-01-03

申请号：US14681679

申请日：2015-04-08

Applicant: FUJIFILM Corporation

Inventor： Yujiro Yanai ,  Hiroshi Sato

IPC: G02B5/30 ,  G02F1/13363 ,  G02F1/1335 ,  G02B5/04

CPC classification number: G02F1/13363 ,  G02B5/045 ,  G02B5/3016 ,  G02F1/133504 ,  G02F1/133528

Abstract: An aspect of the present invention relates to a brightness enhancement film, wherein a high refractive index layer and a low refractive index layer with an average refractive index that is lower than that of the high refractive index layer are directly laminated, and which includes a concavo-convex shape including concave portions and convex portions in an interface shape of an interface between the high refractive index layer and the low refractive layer, with the high refractive index layer including a lyotropic liquid-crystalline compound, and an outermost surface on the low refractive index layer side being a flat surface.

Abstract translation: 本发明的一个方面涉及亮度增强膜，其中直接层压平均折射率低于高折射率层的高折射率层和低折射率层，并且其包括凹凸 凸形，包括在高折射率层和低折射层之间的界面的界面形状的凹部和凸部，高折射率层包括溶致液晶化合物，低折射率的最外表面 折射率层侧为平坦面。

公开(公告)号：US09417480B2

公开(公告)日：2016-08-16

申请号：US14445780

申请日：2014-07-29

Applicant: FUJIFILM Corporation

Inventor： Hiroshi Sato ,  Yujiro Yanai ,  Megumi Sekiguchi ,  Akira Yamamoto

IPC: G02F1/1335 ,  G02F1/13363 ,  G02B5/30

CPC classification number: G02F1/133636 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/13363

Abstract: A liquid crystal display device has at least: a first and a second polarizing layers arranged so that respective absorption axes thereof are orthogonal to each other; a first and a second substrates arranged opposite to each other between the first and second polarizing layers, at least either one of which has a transparent electrode; a twisted alignment mode liquid crystal cell arranged between the first and the second substrates; a first optical compensation film arranged between the first polarizing layer and the liquid crystal cell, including a first transparent support and a layer formed by curing a composition containing a first liquid crystal compound; and a second optical compensation film arranged between the second polarizing layer and the liquid crystal cell, including a second transparent support and a layer formed by curing a composition containing a second liquid crystal compound, as defined herein.

Abstract translation: 液晶显示装置至少具有：使其各吸收轴彼此正交的布置的第一和第二偏振层; 在第一和第二偏振层之间彼此相对布置的第一和第二基板，其中至少一个具有透明电极; 布置在所述第一和第二基板之间的扭曲对准模式液晶单元; 布置在第一偏振层和液晶单元之间的第一光学补偿膜，包括第一透明支撑体和通过固化含有第一液晶化合物的组合物形成的层; 以及布置在第二偏振层和液晶单元之间的第二光学补偿膜，包括第二透明支撑体和通过固化包含如本文所定义的第二液晶化合物的组合物形成的层。