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    Phase difference plate for circularly polarizing plate, circularly polarizing plate, and organic electroluminescence display apparatus
    41.
    发明授权
    Phase difference plate for circularly polarizing plate, circularly polarizing plate, and organic electroluminescence display apparatus 有权
    圆偏振板，圆偏振片和有机电致发光显示装置的相位差板

    公开(公告)号：US09128322B2

    公开(公告)日：2015-09-08

    申请号：US14223427

    申请日：2014-03-24

    Applicant: FUJIFILM Corporation

    Inventor： Yukito Saitoh ,  Hiroshi Sato ,  Mitsuyoshi Ichihashi

    IPC: H01L35/24 ,  G02F1/1335 ,  H01L51/52 ,  H01L27/32

    CPC classification number: G02F1/133528 ,  G02B5/3016 ,  G02F2001/133541 ,  H01L27/32 ,  H01L51/5281

    Abstract: The phase difference plate for a circularly polarizing plate including a first optically anisotropic layer, and a second optically anisotropic layer, in which the first optically anisotropic layer contains a liquid crystal compound helically aligned around a helical axis in its thickness direction, a helix angle of the liquid crystal compound in the first optically anisotropic layer is in a predetermined range, and an in-plane slow axis in a surface of the first optically anisotropic layer at the second optically anisotropic layer side is in parallel with an in-plane slow axis of the second optically anisotropic layer. The phase difference plate can sufficiently suppress the mixing of black with another color observed in the front direction when being stuck as a circularly polarizing plate on a display apparatus.

    Abstract translation: 包括第一光学各向异性层和第二光学各向异性层的圆偏振片的相位差板，其中第一光学各向异性层包含在其厚度方向上螺旋轴线螺旋地对齐的液晶组合物，螺旋角 第一光学各向异性层中的液晶化合物处于预定范围内，第二光学各向异性层侧的第一光学各向异性层的表面中的面内慢轴与平面内的慢轴 第二光学各向异性层。 当在显示装置上作为圆偏振片粘贴时，相位差板可以充分抑制黑色与正面观察到的另一种颜色的混合。

    Phase difference plate for circularly polarizing plate, circularly polarizing plate, and organic electroluminescence display apparatus
    42.
    发明授权
    Phase difference plate for circularly polarizing plate, circularly polarizing plate, and organic electroluminescence display apparatus 有权
    圆偏振板，圆偏振片和有机电致发光显示装置的相位差板

    公开(公告)号：US09122091B2

    公开(公告)日：2015-09-01

    申请号：US14223370

    申请日：2014-03-24

    Applicant: FUJIFILM Corporation

    Inventor： Yukito Saitoh ,  Hiroshi Sato ,  Mitsuyoshi Ichihashi

    IPC: H01L35/24 ,  G02F1/1335 ,  H01L51/52 ,  H01L27/32

    CPC classification number: G02F1/133528 ,  G02B5/3016 ,  G02F2001/133541 ,  H01L27/32 ,  H01L51/5281

    Abstract: The phase difference plate for a circularly polarizing plate includes a first optically anisotropic layer; and a second optically anisotropic layer, in which the first and second optically anisotropic layers contain a liquid crystal compound that is helically aligned around a helical axis which is in a thickness direction of each of the layers, the liquid crystal compound has a same helix direction in the first optically anisotropic layer and in the second optically anisotropic layer, and a helix angle of the liquid crystal compound each in the first optically anisotropic layer and in the second optically anisotropic layer is in a predetermined range. The phase difference plate can sufficiently suppress the mixing of black with another color observed in the front direction when being stuck as a circularly polarizing plate on a display apparatus.

    Abstract translation: 圆偏光板的相位差板包括第一光学各向异性层; 和第二光学各向异性层，其中第一和第二光学各向异性层含有沿着各层的厚度方向的螺旋轴线螺旋排列的液晶化合物，液晶化合物具有相同的螺旋方向 在第一光学各向异性层和第二光学各向异性层中，第一光学各向异性层和第二光学各向异性层中的液晶化合物的螺旋角在预定范围内。 当在显示装置上作为圆偏振片粘贴时，相位差板可以充分抑制黑色与正面观察到的另一种颜色的混合。

    Vehicle mirror
    43.
    发明授权
    Vehicle mirror 有权

    公开(公告)号：US10859745B2

    公开(公告)日：2020-12-08

    申请号：US15933590

    申请日：2018-03-23

    Applicant: FUJIFILM Corporation

    Inventor： Takao Taguchi ,  Kazuhiro Oki ,  Mitsuyoshi Ichihashi

    IPC: G02B5/30 ,  B32B7/02 ,  B60R1/04 ,  G02B5/26 ,  G02B5/28 ,  G02B5/08 ,  B32B17/10 ,  B60R1/08 ,  C08J5/18

    Abstract: The vehicle mirror includes a high-Re retardation film and a reflective layer. The high-Re retardation film has a front retardation of 5,000 nm or more, and the reflective layer is a reflective layer that is reflective in an unpolarized manner, such as a reflective metal layer. The vehicle mirror may be a vehicle mirror further including an image display device, wherein the high-Re retardation film, the reflective layer, and the image display device are disposed in this order, and the reflective layer is transflective.

    Sensing system and sensing method
    46.
    发明授权
    Sensing system and sensing method 有权

    公开(公告)号：US10036701B2

    公开(公告)日：2018-07-31

    申请号：US15401181

    申请日：2017-01-09

    Applicant: FUJIFILM Corporation

    Inventor： Mitsuyoshi Ichihashi

    IPC: G01J4/00 ,  G01N21/21 ,  G02F1/13 ,  G02B5/30 ,  G02B27/28 ,  G02F1/00 ,  G07D7/1205 ,  G01N21/23 ,  G01N21/86

    CPC classification number: G01N21/21 ,  G01N21/23 ,  G01N21/86 ,  G01N2021/216 ,  G01N2201/061 ,  G02B5/30 ,  G02B27/28 ,  G02F1/0045 ,  G02F1/13 ,  G07D7/003 ,  G07D7/12 ,  G07D7/1205

    Abstract: The invention provides a method of sensing a target object due to a change in light intensity detected when the target object passes to cross a light path of circularly polarized light, in a state where circularly polarized light selectively including any one sense of right circularly polarized light and left circularly polarized light is sensed, and a system including: an emission unit which emits circularly polarized light; a target object movement unit; and a detection unit which senses circularly polarized light, in this order, in which the detection unit is at a position where light emitted from the emission unit is incident, a light path of light where the light emitted from the emission unit is incident to the detection unit intersects with the target object movement unit, and the sense of circularly polarized light selectively emitted by the emission unit and the sense of circularly polarized light selectively sensed by the detection unit are the same as each other. It is possible to sense various target objects by using an optical sensor with excellent sensitivity and decreased erroneous sensing in an arbitrary environment, by using the method and the system of the invention.

    System for selective irradiation with circularly polarized light
    49.
    发明授权
    System for selective irradiation with circularly polarized light 有权

    公开(公告)号：US09955633B2

    公开(公告)日：2018-05-01

    申请号：US14554305

    申请日：2014-11-26

    Applicant: FUJIFILM Corporation

    Inventor： Mitsuyoshi Ichihashi ,  Yoshihisa Usami

    IPC: A01G9/20 ,  F21V9/14 ,  A01G9/14 ,  A01G7/04 ,  A01G1/00 ,  G02B27/28 ,  F21Y115/10

    CPC classification number: A01G9/14 ,  A01G7/045 ,  F21V9/14 ,  F21Y2115/10 ,  G02B27/286 ,  Y02P60/146

    Abstract: According to the present invention, provided is a system for irradiating a target object selectively with specific circularly polarized light, comprising a polarization-state control member that controls the polarization state of light to thereby generate circularly polarized light; and a circularly polarized light-reflecting member, wherein the circularly polarized light-reflecting member is disposed at a position on which the circularly polarized light emitted from the polarization-state control member can be incident; the circularly polarized light-reflecting member generates reflected light that selectively comprises circularly polarized light of the same sense as the incident circularly polarized light from the polarization-state control member; and the circularly polarized light-reflecting member is disposed such that the target object can be irradiated with at least a part of the reflected light.

    Polarization filter and sensor system
    50.
    发明授权
    Polarization filter and sensor system 有权

    公开(公告)号：US09671540B2

    公开(公告)日：2017-06-06

    申请号：US14977017

    申请日：2015-12-21

    Applicant: FUJIFILM Corporation

    Inventor： Mitsuyoshi Ichihashi

    IPC: G02B5/30 ,  C09K19/54 ,  G02B5/20 ,  C09K19/58 ,  C09K19/04 ,  C09K19/20

    CPC classification number: G02B5/3025 ,  C09K19/54 ,  C09K19/588 ,  C09K2019/0448 ,  C09K2019/2078 ,  G02B5/208 ,  G02B5/3016 ,  G02B5/305 ,  G02B5/3083

    Abstract: According to the present invention, there are provided a polarization filter and a sensor system. The polarization filter includes a circularly polarized light-separating layer having a cholesteric liquid crystalline phase fixed therein, in which the circularly polarized light-separating layer is a layer which selectively transmits one of the left-hand circularly polarized light and the right-hand circularly polarized light in the specific wavelength band, a λ/4 phase difference layer for light in the specific wavelength band is disposed on one of the surfaces of the circularly polarized light-separating layer, and the λ/4 phase difference layer includes a first phase difference region and a second phase difference region of which slow axis directions are orthogonal to each other. The sensor system includes the polarization filter, a light source which emits light having a wavelength in the specific wavelength band, and a light-receiving element which can detect light having a wavelength in the specific wavelength band. The polarization filter of the present invention can improve the sensitivity of a sensor system using polarized light, and the sensor system of the present invention has high sensitivity and is extremely cost effective.

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