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公开(公告)号：US20150369983A1
公开(公告)日：2015-12-24
申请号：US14742296
申请日：2015-06-17
Applicant: FUJIFILM CORPORATION
Inventor： Kazuhiro OKI , Mitsuyoshi ICHIHASHI , Wataru MAJIMA
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.
Abstract translation: 本发明提供一种反射膜，其包括右圆偏振光反射层和作为圆偏振光反射层的左圆偏振光反射层，每个圆偏振光反射层由通过固定而获得的层 具有反射波长的胆甾醇型液晶相，其中在每个圆偏振光反射层呈现选择性反射的波长区域中，非偏振光的漫反射率为50％以上的反射波长，反射波长在 红外波长区域，反射膜的非极化可见光的直接透射率为50％以上，雾度值为5％以下。 以及包括反射膜的光学构件，其可以用作手写输入片。 光学构件可以通过粘附到显示器的表面来使用。
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公开(公告)号：US20240322096A1
公开(公告)日：2024-09-26
申请号：US18735833
申请日：2024-06-06
Applicant: FUJIFILM Corporation
Inventor： Wakahiko KANEKO , Wataru MAJIMA , Tatsuya OBA
CPC classification number: H01L33/60 , H01L25/167 , H01L33/505
Abstract: Provided is an LED display device that can improve utilization efficiency of light with a simple configuration having a small number of components. The LED display device includes an LED array formed by arranging a plurality of light emitting diodes that emit excitation light having a wavelength of less than 420 nm, on a substrate; a color conversion layer; a wavelength-selective reflection layer disposed on a side opposite to the LED array; and an RGB reflection layer disposed on an LED array side with respect to the color conversion layer, in which the color conversion layer is disposed at each of positions corresponding to the light emitting diodes of the LED array, and includes a red color conversion region emitting red light, a green color conversion region emitting green light, and a blue color conversion region emitting blue light, which are excited by the excitation light, and a partition wall that divides each region, a height h of the partition wall is 20 μm or less and a ratio w/h of a width w between partition walls to the height h is 2 or more, the wavelength-selective reflection layer selectively reflects light having a wavelength of the excitation light and is integrally formed at positions corresponding the respective regions, and the RGB reflection layer reflects at least light having a wavelength of 450 nm to 650 nm.
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公开(公告)号：US20210294099A1
公开(公告)日：2021-09-23
申请号：US17343160
申请日：2021-06-09
Applicant: FUJIFILM Corporation
Inventor： Akihiro ANZAI , Yujiro YANAI , Wataru MAJIMA , Taketo OTANI
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：US20200333598A1
公开(公告)日：2020-10-22
申请号：US16921393
申请日：2020-07-06
Applicant: FUJIFILM Corporation
Inventor： Taketo OTANI , Yujiro YANAI , Wataru MAJIMA , Rikio INOUE
Abstract: There are provided a screen image-displaying laminated glass that reduces the distortion of a projected display image, a method for producing the screen image-displaying laminated glass, and a screen image display system including the screen image-displaying laminated glass. The screen image-displaying laminated glass has a half-mirror film that has a transparent support and that has a selectively reflecting layer which wavelength-selectively reflects light, a first glass plate disposed on one surface of the half-mirror film, and a second glass plate disposed on the other surface of the half-mirror film. The longitudinal directions of bright and dark lines observed by a magic mirror method match each other at the first glass plate, the second glass plate, and the transparent support.
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5.发明申请公开(公告)号：US20200209619A1
公开(公告)日：2020-07-02
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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Patent Agency Ranking
公开(公告)号：US20210263314A1
公开(公告)日：2021-08-26
申请号：US17232997
申请日：2021-04-16
Applicant: FUJIFILM Corporation
Inventor： Akihiro ANZAI , Yujiro YANAI , Wataru MAJIMA , Taketo OTANI
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：US20160154156A1
公开(公告)日：2016-06-02
申请号：US15014640
申请日：2016-02-03
Applicant: FUJIFILM Corporation
Inventor： Mitsuyoshi ICHIHASHI , Wataru MAJIMA , Kazuhiro OKI
CPC classification number: G02B5/3016 , G01J1/0214 , G01J1/0429 , G01J1/0488 , G01J4/04 , G01J2004/001 , G02B27/283 , G02B27/286
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.
Abstract translation: 根据本发明，提供了一种圆偏振滤光器，用于选择性地透射任何右旋圆偏振光或左旋圆偏振光的任何一种感光的圆偏振光，其特定波长在圆周时散射透射率/垂直透射率 从另一方面的圆偏振光从表面进入时，从任何一个表面入射的特定波长感的偏振光小于散射反射率/常规反射率。 圆偏光滤光器包括圆偏振光分离层，圆偏振光分离层包括反射光散射圆偏振光分离层，还可以包括反射光非散射圆偏振光分离层 反射光散射圆偏振光分离层由固定有胆甾型液晶相的层构成，反射光非散射圆偏振光分离层由具有胆甾型液晶的层 或者包括线偏振光分离层和λ/ 4相位差层的层压体。 本发明的圆偏振光滤光器具有高的圆极化率，并且可以使用本发明的圆偏振滤光片来提供高灵敏度的传感器系统。
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公开(公告)号：US20150369979A1
公开(公告)日：2015-12-24
申请号：US14742035
申请日：2015-06-17
Applicant: FUJIFILM CORPORATION
Inventor： Kazuhiro OKI , Mitsuyoshi ICHIHASHI , Wataru MAJIMA
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.
Abstract translation: 本发明提供了一种包括反射层和信息呈现层的光学构件，所述反射层包括一个或多个圆偏振光反射层，所述圆偏振光反射层选自右圆偏振光反射层和左圆偏振光反射层 光反射层，由通过固定胆甾醇型液晶相获得的层构成的圆偏振光反射层，反射层具有反射波长，在该反射波长下，非偏振光的镜面反射率在波长中大于20％ 圆偏振光反射层呈现选择反射的区域，反射波长小于50％的非偏振光的漫反射率，反射波长在红外波长区域，信息呈现层具有图案 吸收或反射反射波浪的光的材料 th。 光学构件可以用作手写输入片，可以通过粘贴到显示器的表面来使用。
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公开(公告)号：US20140041296A1
公开(公告)日：2014-02-13
申请号：US14059060
申请日：2013-10-21
Applicant: Fujifilm Corporation
Inventor： Mitsuyoshi ICHIHASHI , Yoshihisa USAMI , Wataru MAJIMA
IPC: F21V9/14
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.
Abstract translation: 本发明提供一种照明装置，其能够减少用于调节偏振状态的构件的数量，并且可以照射具有自然色调的光而不降低光照射的能量效率，以及使用该照明装置的植物生长调节方法。 本发明的照明装置包括发光光源和偏振态调节部件，其调节发光光源的偏振状态，其中发射波长的一部分的波长区域的偏振状态发生变化 对于要照射的光线中的调节用波长带的光的圆偏振度为0.3以上。 在优选实施例中，用于调节极化状态调节构件的至少一个波长带的宽度为60nm至250nm。
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公开(公告)号：US20200326539A1
公开(公告)日：2020-10-15
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: G02B27/01 , G02F1/1335 , G02B5/30 , G02B5/26
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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