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    Filter and imaging apparatus
    3.
    发明授权
    Filter and imaging apparatus 有权

    公开(公告)号：US12092846B2

    公开(公告)日：2024-09-17

    申请号：US17572556

    申请日：2022-01-10

    Applicant: FUJIFILM Corporation

    Inventor： Shigeaki Nimura ,  Shuji Ono

    IPC: G02B5/26 ,  G02B5/30 ,  H01L27/146

    CPC classification number: G02B5/26 ,  G02B5/3083 ,  H01L27/14625

    Abstract: Provided a filter and an imaging apparatus for obtaining a higher-quality multispectral image in which the tint of the image is uniform. The filter includes: an optical filter layer; and a patterned retardation layer that is laminated on the optical filter layer. The optical filter layer includes at least three reflective layers that are formed of a cholesteric liquid crystal layer, and the reflective layers have different reflection center wavelengths. Alternatively, the optical filter layer includes a reflective layer that is formed of a cholesteric liquid crystal layer having at least two different reflection center wavelengths. The patterned retardation layer has a slow axis in a direction corresponding to the reflection center wavelength of the reflective layer.

    Imaging device and laminate
    4.
    发明授权
    Imaging device and laminate 有权

    公开(公告)号：US11380725B2

    公开(公告)日：2022-07-05

    申请号：US16659580

    申请日：2019-10-22

    Applicant: FUJIFILM Corporation

    Inventor： Hiroshi Inada ,  Rie Takasago ,  Shigeaki Nimura

    IPC: H01L31/0232 ,  H01L27/146 ,  G02B5/30 ,  G02F1/1335

    Abstract: Provided are an imaging device that is inconspicuous from the outside, can easily apply design, and can obtain a clear image, and a laminate. The imaging device includes: an imaging unit that includes an image pickup element; and a transflective film that is disposed on a side of the imaging unit where light is incident into the image pickup element and reflects a part of the incident light, in which the transflective film includes at least one of a cholesteric liquid crystal layer or a multi-layer polymer film, when seen from a direction perpendicular to a surface of the image pickup element where light is incident, a peripheral region surrounding the imaging unit satisfies L*≤50 in a CIE-Lab (D50) color space, and when seen from the direction perpendicular to the surface of the image pickup element where light is incident, the transflective film is disposed to cover at least the imaging unit and the peripheral region.

    Reflection film, transparent screen, color filter, and decorative film
    5.
    发明授权
    Reflection film, transparent screen, color filter, and decorative film 有权

    公开(公告)号：US10852463B2

    公开(公告)日：2020-12-01

    申请号：US16746948

    申请日：2020-01-19

    Applicant: FUJIFILM Corporation

    Inventor： Shigeaki Nimura

    IPC: G02F1/1335 ,  G02B5/26

    Abstract: The invention provides a reflection film in which generation of side lobes derived from a cholesteric liquid crystalline layer is suppressed. A reflection film of the invention includes: a first cholesteric liquid crystalline layer which is formed of a composition including a first liquid crystal compound; and a second cholesteric liquid crystalline layer which is disposed at least on one surface of the first cholesteric liquid crystalline layer and formed of a composition including a second liquid crystal compound, in which a helical pitch length of the first cholesteric liquid crystalline layer is constant, a birefringence Δn2 of the second liquid crystal compound is smaller than a birefringence Δn1 of the first liquid crystal compound, and a helical pitch number of the second cholesteric liquid crystalline layer is a half or less of a helical pitch number of the first cholesteric liquid crystalline layer.

    Blue light blocking and light source
    6.
    发明授权
    Blue light blocking and light source 有权

    公开(公告)号：US10714665B2

    公开(公告)日：2020-07-14

    申请号：US16257024

    申请日：2019-01-24

    Applicant: FUJIFILM Corporation

    Inventor： Shigeaki Nimura ,  Shunya Katoh ,  Yuki Nakazawa ,  Kazuhiro Oki ,  Mitsuyoshi Ichihashi ,  Yoshihisa Usami

    IPC: H01L33/60 ,  G02B5/28 ,  H01L33/48 ,  C09K19/38 ,  C09K19/58 ,  G02B5/30 ,  H01L33/50 ,  C09K19/04

    Abstract: The present invention provides a blue light blocking film including a selective reflection layer, in which the selective reflection layer exhibits selective reflection having a center wavelength in a wavelength range of 450 nm to 500 nm, a half-width of the selective reflection is 20 nm to 45 nm, a light transmittance of the selective reflection layer at the center wavelength is 50% or less, and a light transmittance of the selective reflection layer at any wavelength in a wavelength range of more than 500 nm and 780 nm or less is 60% or more. The blue light blocking film of the present invention has high light transmittance in a visible light range, while effectively blocking blue light, and has a reduced yellowish tint. The blue light blocking film of the present invention is used for light sources and the like, and is capable of effectively blocking blue light.

    Polymer film, and optically-compensatory film, polarizer and liquid-crystal display device comprising the same
    10.
    发明授权
    Polymer film, and optically-compensatory film, polarizer and liquid-crystal display device comprising the same 有权
    聚合物膜和光学补偿膜，偏振器和包括其的液晶显示装置

    公开(公告)号：US09354356B2

    公开(公告)日：2016-05-31

    申请号：US13890398

    申请日：2013-05-09

    Applicant: FUJIFILM Corporation

    Inventor： Tadashi Omatsu ,  Hajime Nakayama ,  Akihiro Matsufuji ,  Osamu Takahashi ,  Shigeaki Nimura ,  Yousuke Nishiura

    IPC: G02B1/08 ,  C08J7/12 ,  G02B5/30

    CPC classification number: G02B1/08 ,  C08J7/12 ,  C08J2301/10 ,  G02B5/3016 ,  Y10T428/1041 ,  Y10T428/31

    Abstract: A polymer film that has an in-plane retardation Re(λ) and a thickness-direction retardation Rth(λ) satisfying formula (i) and (ii), and that further has a surface energy of at least one surface is from 50 mN/m to 80 mN/m: 0≦Re(630)≦10, and |Rth(630)|≦25;  (i) and |Re(400)−Re(700)|≦10, and |Rth(400)−Rth(700)|≦35.  (ii) in the formulae, Re(λ) and Rth(λ) are measurement values at the wavelength of λ nm, and an optically-compensatory film, an optical material such as a polarizer and a liquid-crystal display device using the polymer film.

    Abstract translation: 具有面内延迟Re（λ）和满足式（i）和（ii）的厚度方向延迟Rth（λ）的聚合物膜，并且还具有至少一个表面的表面能为50mN / m至80mN / m：0＆nlE; Re（630）＆nlE; 10和| Rth（630）|＆nlE; 25; （i）和| Re（400）-Re（700）|＆nlE; 10和| Rth（400）-Rth（700）|＆nlE; 35。 （ii）在式中，Re（λ）和Rth（λ）是波长为λnm的测量值，光学补偿膜，偏光镜等光学材料和使用该聚合物的液晶显示装置 电影。

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