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    • 1. 发明公开
    • CHOLESTERIC LIQUID CRYSTAL LAYER PRODUCTION METHOD, CHOLESTERIC LIQUID CRYSTAL LAYER, LIQUID CRYSTAL COMPOSITION, CURED PRODUCT, OPTICALLY ANISOTROPIC BODY, AND REFLECTIVE LAYER
    • EP3770656A1
    • 2021-01-27
    • EP19771163.3
    • 2019-03-20
    • Fujifilm Corporation
    • KODAMA KeisukeKATOH ShunyaICHIHASHI Mitsuyoshi
    • G02B5/30
    • A first object of the present invention is to provide a method for producing a cholesteric liquid crystal layer, which can produce a cholesteric liquid crystal layer whose reflection surface is not parallel to the substrate surface by a simple method. A second object of the present invention is to provide a cholesteric liquid crystal layer, and an optically anisotropic body and a reflective layer, each of which includes the cholesteric liquid crystal layer. A third object of the present invention is to provide a liquid crystal composition capable of forming the cholesteric liquid crystal layer. A fourth object of the present invention is to provide a cured product, an optically anisotropic body, and a reflective layer, each of which is formed of the liquid crystal composition.
      The method for producing a cholesteric liquid crystal layer of the present invention includes a step 1 of forming a composition layer satisfying the following condition 1, the following condition 2, or the following condition 3 on a substrate, using a liquid crystal composition including a liquid crystal compound; and a step 2 of subjecting the composition layer to a treatment for cholesterically aligning the liquid crystal compound in the composition layer to form a cholesteric liquid crystal layer.
      Condition 1: at least a part of the liquid crystal compound in the composition layer is tilt-aligned with respect to a substrate surface
      Condition 2: the liquid crystal compound is aligned such that a tilt angle of the liquid crystal compound in the composition layer continuously changes along a thickness direction;
      Condition 3: at least a part of the liquid crystal compound in the composition layer is vertically aligned with respect to the substrate surface.
    • 2. 发明公开
    • ILLUMINATION DEVICE AND PLANT GROWTH CONTROL METHOD
    • 奥地利维多利亚州维多利亚州
    • EP2700871A1
    • 2014-02-26
    • EP12774627.9
    • 2012-04-12
    • Fujifilm Corporation
    • ICHIHASHI MitsuyoshiUSAMI YoshihisaMAJIMA Wataru
    • F21V9/14A01G7/00F21S2/00G02B5/30
    • F21V9/14A01G7/045G02B5/3083Y02P60/146
    • 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.
    • 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,并且可以在不降低光照射的能量效率的情况下照射具有自然色调的光,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调整发光光源的偏振状态的偏振状态调节部件,其中发射波长的一部分的波长区域的偏振状态发生变化 在被照射的光线之间用于调节的波长带中的光的圆偏振度为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。
    • 9. 发明公开
    • INFRARED REFLECTING PLATE AND INFRARED REFLECTIVE BONDED GLASS SHEET
    • 红细胞凝胶电泳
    • EP2442161A1
    • 2012-04-18
    • EP10786214.6
    • 2010-06-10
    • FUJIFILM Corporation
    • OKI KazuhiroICHIHASHI Mitsuyoshi
    • G02B5/26B32B7/02E06B5/00G02B5/30B60J1/00
    • G02B5/208B32B17/10B32B17/10036B32B17/10458B32B17/10678B32B17/10761G02B5/3016B32B2367/00
    • To provide an infrared-light reflective plate having the improved selective reflectivity characteristics.
      Disclosed is an infrared-light reflective plate reflecting an infrared-light of equal to or longer than 700nm comprising a substrate of which fluctuation of retardation in plane at a wavelength of 1000nm, Re(1000), is equal to or more than 20nm, on a surface of the substrate, at least two light-reflective layers, X1 and X2, formed of a fixed cholesteric liquid crystal phase, and disposed in this order from the substrate, and, on another surface of the substrate, at least two light-reflective layers, Y1 and Y2, formed of a fixed cholesteric liquid crystal phase, and disposed in this order from the substrate, wherein the reflection center wavelengths of the light-reflective layers X1 and X2 are same with each other and are λ X1 (nm), and the two layers reflect circularly-polarized light in opposite directions; the reflection center wavelengths of the light-reflective layers Y1 and Y2 are same with each other and are λ Y1 (nm), and the two layers reflect circularly-polarized light in opposite directions; λ X1 and λ Y1 are not same; and refractive anisotropy of the light reflective layers X1 and X2, Δn X1 and Δn X2 satisfy the relation of Δn X2 X1 , and refractive anisotropy of the light reflective layers Y1 and Y2, Δn Y1 and Δn Y2 satisfy the relation of Δn Y2 Y1 .
    • 提供具有改进的选择反射特性的红外光反射板。 公开了一种反射等于或大于700nm的红外光的红外光反射板,其包括在1000nm的波长为1000nm的平面中的相位差为Re(1000)等于或大于20nm的基板 基板的表面,由固定胆甾型液晶相形成的至少两个光反射层X1和X2,并从基板依次设置,并且在基板的另一个表面上,至少两个发光元件, 由固定胆甾型液晶相形成的反射层,Y1和Y2,从基板依次设置,其中反射层X1和X2的反射中心波长彼此相同,为X1(nm ),并且两层反射相反方向的圆偏振光; 光反射层Y1和Y2的反射中心波长彼此相同并且为»Y1(nm),并且两个层反射相反方向的圆偏振光; »X1和»Y1不相同; 和光反射层X1和X2的折射各向异性,“n X1和”n X2满足“n X2 <”n X1的关系和光反射层Y1和Y2的折射各向异性,“n Y1和”n Y2 满足“n Y2 <”n Y1的关系。