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公开(公告)号：US11526006B2
公开(公告)日：2022-12-13
申请号：US16811447
申请日：2020-03-06
Applicant: FUJIFILM Corporation
Inventor： Rikio Inoue , Shusuke Arita , Wataru Majima , Takao Taguchi , Yujiro Yanai , Taketo Otani
Abstract: An object of the present invention is to provide a half-mirror film for displaying a projection image having high adhesiveness, a laminated glass in which wrinkle generation of the half-mirror film is suppressed or furthermore has high adhesiveness, and an image display system using the laminated glass. The problem is solved by providing a half-mirror film for displaying a projection image including a transparent support; and a selective reflection layer reflecting light in a wavelength selective manner, in which the transparent support has an absolute value of 10 nm or less of an in-plane phase difference at a wavelength of 550 nm and a heat seal layer disposed on an opposite surface of a surface having the selective reflection layer, the heat seal layer contains a thermoplastic resin, and a mixed layer in which components of the transparent support and the heat seal layer are mixed is formed between the transparent support and the heat seal layer.
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公开(公告)号：US10598588B2
公开(公告)日：2020-03-24
申请号：US15790350
申请日：2017-10-23
Applicant: FUJIFILM Corporation
Inventor： Wataru Majima , Kazuhiro Oki , Mitsuyoshi Ichihashi
Abstract: A sensing method includes sensing the target object by sensing light that is derived from emitted light and has passed the target object, in which the emitted light is circularly polarized light, sensed light is circularly polarized light, and light derived from the emitted light is incident to the target object at an angle greater than 20° and equal to or smaller than 70° that is formed with a normal line of the target object.
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公开(公告)号：US11892627B2
公开(公告)日：2024-02-06
申请号：US17232997
申请日：2021-04-16
Applicant: FUJIFILM Corporation
Inventor： Akihiro Anzai , Yujiro Yanai , Wataru Majima , Taketo Otani
CPC classification number: G02B27/0101 , B60K35/00 , G02B5/26 , G02B5/3016 , B60K2370/1529 , B60K2370/31
Abstract: Provided are a projection image display member having a high visible light transmittance, suppressing a double image of a display image, and having excellent suitability of polarized sunglasses for incident light reflected from external light, a windshield glass using the projection image display member, and a head-up display system. The problem is solved such that one or more phase difference layers, one or more selective reflection layers, and one or more polarization conversion layers are provided in this order, the polarization conversion layer being a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x of the helical alignment structure and a film thickness y (μm) of the polarization conversion layer satisfying “0.3≤x≤7.0”, “0.5≤y≤6.0”, “y≤0.7x+3.2”, and “y≥0.7x−1.4”.
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公开(公告)号：US09927095B2
公开(公告)日：2018-03-27
申请号：US14059060
申请日：2013-10-21
Applicant: Fujifilm Corporation
Inventor： Mitsuyoshi Ichihashi , Yoshihisa Usami , Wataru Majima
CPC classification number: F21V9/14 , A01G7/045 , G02B5/3083 , Y02P60/146
Abstract: The present invention provides an illuminating device that makes it possible to reduce the number of members for regulating a polarization state and can irradiate light having natural color shades without decreasing energy efficiency of light irradiation, and a plant growth regulation method using the illuminating device. The illuminating device of the present invention includes a light-emitting light source and a polarization state regulation member that regulates a polarization state of the light-emitting light source, in which the polarization state of a wavelength region of a portion of emission wavelengths is changed to circular polarization, and a degree of circular polarization of light in a wavelength band for regulation among the light rays to be irradiated is 0.3 or higher. In a preferable embodiment, a width of at least one wavelength band for regulation of the polarization state regulation member is from 60 nm to 250 nm.
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公开(公告)号：US09874669B2
公开(公告)日：2018-01-23
申请号：US14742296
申请日：2015-06-17
Applicant: FUJIFILM CORPORATION
Inventor： Kazuhiro Oki , Mitsuyoshi Ichihashi , Wataru Majima
IPC: G02F1/1335 , G02B5/30 , G02B5/08 , G02B5/28
CPC classification number: G02B5/3016 , G02B5/0841 , G02B5/281
Abstract: The present invention provides a reflection film, comprising a right circularly-polarized light reflection layer and a left circularly-polarized light reflection layer as circularly-polarized light reflection layers, each of the circularly-polarized light reflection layers consisting of a layer obtained by fixing a cholesteric liquid-crystalline phase, having a reflection wavelength at which a diffuse reflectance for non-polarized light becomes 50% or more in a wavelength region in which each of the circularly-polarized light reflection layers exhibits selective reflection, the reflection wavelength being in an infrared wavelength region, and the reflection film exhibiting a direct transmittance of non-polarized visible light of 50% or more and a haze value of 5% or less; and an optical member including the reflection film, which can be used as a handwriting input sheet. The optical member can be used by being stuck to the surface of a display.
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Patent Agency Ranking
公开(公告)号：US11314087B2
公开(公告)日：2022-04-26
申请号：US16914596
申请日：2020-06-29
Applicant: FUJIFILM Corporation
Inventor： Hirotoshi Ando , Wataru Majima , Akihiro Anzai , Katsuyuki Takada , Kenji Hayashi
IPC: G09G5/00 , G02B27/01 , G02B5/26 , G02B5/30 , G02F1/1335
Abstract: There are provided a projection image-displaying member, a windshield glass, and a head-up display system in which both high visible light transmittance and good tint of a screen image displayed are achieved. The projection image-displaying member has a selectively reflecting layer that wavelength-selectively reflects light. The selectively reflecting layer has a maximum reflectivity in a wavelength range of 700 to 850 nm at an incidence angle of 5° and has a peak with a reflectivity of 15% or more in a wavelength range of 470 to 540 nm. The selectively reflecting layer further has two or more peaks of reflectivity in a wavelength range of 540 to 700 nm.
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公开(公告)号：US09223163B2
公开(公告)日：2015-12-29
申请号：US14286652
申请日：2014-05-23
Applicant: FUJIFILM CORPORATION
Inventor： Wataru Majima , Kazuhiro Oki , Hirotoshi Andou
CPC classification number: G02F1/133365 , C09K2019/044 , C09K2019/0448 , C09K2019/2078 , C09K2219/03 , G02B1/04 , G02B5/208 , G02B5/3016 , Y10T428/1005
Abstract: Provided is a method of producing a film including: a coating step of coating, on a substrate, a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound, an alignment controlling agent capable of controlling alignment of the polymerizable liquid crystal compound, a polymerization initiator and coated film a solvent; and a drying step of drying, wherein the alignment controlling agent is a compound represented by formula (1) below, and the alignment controlling agent is added in 0.005 to 0.2 parts by mass relative to 100 parts by mass of the polymerizable liquid crystal compound: In general formula (1), each of L1 and L2 represents an alkylene group having 1 to 6 carbon atoms that may be substituted with a fluorine atom or the like, and n1 and n2 represents integers of 3 or more.
Abstract translation: 提供一种膜的制造方法，其包括：涂布步骤，在基板上涂布含有聚合性液晶化合物的聚合性液晶组合物，能够控制聚合性液晶性化合物取向的取向控制剂，聚合引发剂 和涂膜一种溶剂; 和干燥步骤，其中取向控制剂是下述式（1）表示的化合物，相对于100质量份的可聚合液晶化合物，取向控制剂的添加量为0.005〜0.2质量份： 在通式（1）中，L1和L2各自表示可以被氟原子等取代的碳原子数1〜6的亚烷基，n1和n2表示3以上的整数。
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公开(公告)号：US11947109B2
公开(公告)日：2024-04-02
申请号：US17343160
申请日：2021-06-09
Applicant: FUJIFILM Corporation
Inventor： Akihiro Anzai , Yujiro Yanai , Wataru Majima , Taketo Otani
CPC classification number: G02B27/0101 , B60K35/00 , G02B27/286 , B60K2370/1529 , B60K2370/39
Abstract: It is an object of the present invention to provide a projection image-displaying member having excellent suitability for polarizing sunglasses, a windshield glass, and a head-up display system. The projection image-displaying member has a first polarization converting layer, at least one selectively reflecting layer, and a second polarization converting layer in this order. The first polarization converting layer and the second polarization converting layer are layers formed by fixing a helical alignment structure of a liquid crystal compound. The number of pitches in the helical alignment structure and a film thickness satisfy all relational expressions below.
When the first polarization converting layer has a number of pitches x1 and a film thickness y1 (unit: μm),
0.3≤x1≤2.0 and (i)
y1≥1.86x1+0.13. (ii)
When the second polarization converting layer has a number of pitches x2 and a film thickness y2 (unit: μm),
0.25≤x2≤2.0, (iii)
y2≤1.37x2+5.5, and (iv)
y2≥1.37x2+0.25. (v)-
公开(公告)号：US10139533B2
公开(公告)日：2018-11-27
申请号：US15014640
申请日：2016-02-03
Applicant: FUJIFILM Corporation
Inventor： Mitsuyoshi Ichihashi , Wataru Majima , Kazuhiro Oki
Abstract: According to the invention, there is provided a circular polarizing filter for selectively transmitting circularly polarized light of any one sense of either right-handed circularly polarized light or left-handed circularly polarized light at a specific wavelength in which scattering transmittance/vertical transmittance when circularly polarized light of the sense of the specific wavelength enters from any one surface is less than scattering reflectance/regular reflectance when circularly polarized light of the other sense enters from the surface. The circular polarizing filter includes a circularly-polarized light separating layer, the circularly-polarized light separating layer includes a reflected light-scattering circularly-polarized light separating layer, and may further include a reflected light-non-scattering circularly-polarized light separating layer, the reflected light-scattering circularly-polarized light separating layer is composed of a layer having a cholesteric liquid crystalline phase fixed therein, and the reflected light-non-scattering circularly-polarized light separating layer is composed of a layer having a cholesteric liquid crystalline phase fixed therein, or a laminate including a linearly-polarized light separating layer and a λ/4 phase difference layer. The circular polarizing filter of the invention has a high circular polarizance, and a high-sensitivity sensor system can be provided using the circular polarizing filter of the invention.
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公开(公告)号：US09910197B2
公开(公告)日：2018-03-06
申请号：US14742035
申请日：2015-06-17
Applicant: FUJIFILM CORPORATION
Inventor： Kazuhiro Oki , Mitsuyoshi Ichihashi , Wataru Majima
IPC: G02F1/1335 , G02B5/26 , G02B5/20
Abstract: The present invention provides an optical member including a reflection layer and an information presentation layer, the reflection layer comprising one or more circularly-polarized light reflection layers selected from the group consisting of a right circularly-polarized light reflection layer and a left circularly-polarized light reflection layer, the circularly-polarized light reflection layer consisting of a layer obtained by fixing a cholesteric liquid-crystalline phase, the reflection layer having a reflection wavelength at which a specular reflectance for non-polarized light is more than 20% in a wavelength region in which the circularly-polarized light reflection layer exhibits selective reflection, a diffuse reflectance for non-polarized light at the reflection wavelength less than 50%, the reflection wavelength being in an infrared wavelength region, and the information presentation layer having a pattern of a material that absorbs or reflects light of the reflection wavelength. The optical member can be used as a handwriting input sheet, which can be used by being stuck to the surface of a display.
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