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公开(公告)号：US11852940B2
公开(公告)日：2023-12-26
申请号：US18067250
申请日：2022-12-16
Applicant: FUJIFILM Corporation
Inventor： Takashi Yonemoto , Yukito Saitoh , Hiroshi Sato , Yuki Fukushima , Mitsuyoshi Ichihashi , Keisuke Kodama , Shunya Katoh , Naoto Yanase
CPC classification number: G02F1/13706 , G02B5/3016
Abstract: An optically anisotropic film is formed of a liquid crystal composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction of the optically anisotropic film, and the optically anisotropic film satisfies predetermined requirements.
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公开(公告)号：US11077800B2
公开(公告)日：2021-08-03
申请号：US15987139
申请日：2018-05-23
Applicant: FUJIFILM Corporation
Inventor： Akihiro Anzai , Kazuhiro Oki , Mitsuyoshi Ichihashi , Takao Taguchi
IPC: B60R1/12 , G02F1/1335 , G02B5/30 , G02B27/28 , G02F1/13363 , B60R1/08 , G02F1/1333
Abstract: A vehicle mirror having an image display function includes an image display device, a circularly polarized light reflection layer, and a front plate formed of glass or plastic in this order. The circularly polarized light reflection layer includes a linearly polarized light reflection plate and a 1/4 wavelength plate from a side of the image display device. The linearly polarized light reflection plate and the 1/4 wavelength plate are directly in contact with each other, or only an alignment layer is included between the linearly polarized light reflection plate and the 1/4 wavelength plate. A method for producing the vehicle mirror includes forming the 1/4 wavelength plate from a composition that is directly applied to the surface of the linearly polarized light reflection plate or that is directly applied to the surface of the alignment layer directly in contact with the linearly polarized light reflection plate.
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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
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.
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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：US10175399B2
公开(公告)日：2019-01-08
申请号：US15609358
申请日：2017-05-31
Applicant: FUJIFILM Corporation
Inventor： Akihiro Anzai , Kazuhiro Oki , Mitsuyoshi Ichihashi , Takao Taguchi
IPC: G02B5/30 , A47G1/04 , G02F1/1335 , B60R1/08 , A47G1/00 , G02B5/26 , G09F9/00 , G09F19/16 , A47G1/06 , G02F1/1333 , G02F1/13363
Abstract: According to the invention, there is provided a mirror with an image display function including, in this order: an image display device; a ¼ wavelength plate; a circular polarization reflection layer; and a front surface plate made of glass or plastic, in which the circular polarization reflection layer includes a cholesteric liquid crystal layer, and the cholesteric liquid crystal layer has a central wavelength of selective reflection in a visible light region. The mirror with an image display function of the invention is capable of displaying a bright image.
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Patent Agency Ranking
公开(公告)号：US09829615B2
公开(公告)日：2017-11-28
申请号：US15052312
申请日：2016-02-24
Applicant: FUJIFILM Corporation
Inventor： Akiko Watano , Yukito Saitoh , Katsufumi Ohmuro , Mitsuyoshi Ichihashi , Hiroyuki Ishikawa , Kotaro Yasuda , Hideyuki Nishikawa , Yuki Matsuda , Wataru Hoshino
IPC: G02B5/30 , G02B5/26 , G02F1/1335 , G02F1/13363
CPC classification number: G02B5/3041 , G02B5/26 , G02B5/3016 , G02F1/133536 , G02F1/133603 , G02F1/133621 , G02F1/13363 , G02F1/133634 , G02F2001/133543 , G02F2001/133614 , G02F2001/133638
Abstract: The present invention provides a luminance-enhancing film including a λ/4 plate, and a reflection polarizer, including a first light reflection layer, a second light reflection layer, and a third light reflection layer from the λ/4 plate side sequentially, the light reflection layers being light reflection layers formed by fixing a cholesteric liquid crystalline phase, and including blue, green and red light reflection layers, and Rth(550) of the first light reflection layer and Rth(550) of the second light reflection layer having inverse signs; and a luminance-enhancing film including a λ/4 plate and a reflection polarizer including at least a light reflection layer formed of a rod-like cholesteric liquid crystal material and a light reflection layer formed of a disk-like cholesteric liquid crystal material. The luminance-enhancing film has high luminance and is able to suppress an oblique change in the color.
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公开(公告)号：US09807945B2
公开(公告)日：2017-11-07
申请号：US14577120
申请日：2014-12-19
Applicant: FUJIFILM Corporation
Inventor： Yoshihisa Usami , Mitsuyoshi Ichihashi
CPC classification number: A01G7/045 , F21V9/14 , Y02P60/146
Abstract: The present invention provides an illumination apparatus for plant cultivation, including a unit configured to change light in any wavelength region of 300 nm or higher and 600 nm or lower (wavelengths of 452 nm to 474 nm, for example) to light in the wavelength region having dominantly a right-circularly polarized light component. The illumination apparatus of the present invention enables irradiation with light that is capable of giving a specific effect in plant cultivation.
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公开(公告)号：US09759600B2
公开(公告)日：2017-09-12
申请号：US14974969
申请日：2015-12-18
Applicant: FUJIFILM Corporation
Inventor： Mitsuyoshi Ichihashi
IPC: G01J1/42 , G01J1/04 , G02B5/30 , G01J1/08 , G01N21/88 , G01N21/958 , G01N21/23 , G01N21/84 , G01N21/21
CPC classification number: G01J1/0429 , G01J1/0488 , G01J1/08 , G01N21/23 , G01N21/8422 , G01N21/8806 , G01N21/958 , G01N2021/216 , G01N2021/8848 , G02B5/3016 , G02B5/3083
Abstract: Provided are a circular polarization filter including a circularly-polarized light separating layer (preferably, a layer having a cholesteric liquid crystalline phase fixed therein or a laminate including a reflective linear polarizer and a λ/4 phase difference layer), in which the circularly-polarized light separating layer selectively transmits either right-handed circularly polarized light or left-handed circularly polarized light in a specific wavelength region, a transparent medium which is transparent with respect to light in the specific wavelength region is provided at least on one surface side of the circularly-polarized light separating layer, and the transparent medium has an inclined surface which forms an angle of 1° to 30° relative to the surface on the transparent medium side of the circularly-polarized light separating layer, and sensor system using the circular polarization filter. The circular polarization filter of the invention is capable of providing circularly polarized light with a high circular polarizance, or improving sensitivity in the sensor system using circularly polarized light.
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29.发明授权Polymerizable compound, polymerizable liquid crystalline composition, macromolecular compound and film 有权可聚合化合物，可聚合液晶组合物，大分子化合物和薄膜公开(公告)号：US08784684B2
公开(公告)日：2014-07-22
申请号：US13961014
申请日：2013-08-07
Applicant: FUJIFILM Corporation
Inventor： Satoshi Shimamura , Mitsuyoshi Ichihashi
IPC: C09K19/34 , C09K19/32 , C09K19/06 , C09K19/52 , C09K19/00 , C08F2/00 , C08F26/06 , C08F126/06 , C08F226/06 , C07D265/00 , C07D265/12 , C07D498/00
CPC classification number: C07D265/22 , C08F222/1006
Abstract: A compound which has a benzoxazinone ring and an aromatic ring that directly bonds to the benzoxazinone ring, and has a mesogenic core substituted by a substituent having a polymerizable functional group is excellent in terms of durability, colorless, and exhibits a high Δn while having an azomethine bond.
Abstract translation: 具有苯并恶嗪酮环和与苯并恶嗪酮环直接键合的芳香环，具有由具有聚合性官能团的取代基取代的介晶核的化合物在耐久性，无色性方面优异且呈现高的“ 具有偶氮甲碱键。
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公开(公告)号：US11579507B2
公开(公告)日：2023-02-14
申请号：US17021763
申请日：2020-09-15
Applicant: FUJIFILM Corporation
Inventor： Keisuke Kodama , Shunya Katoh , Mitsuyoshi Ichihashi
IPC: G02F1/137 , C09K19/34 , C09K19/52 , G02F1/1333
Abstract: A method for producing a cholesteric liquid crystal layer is a method that can produce a cholesteric liquid crystal layer whose reflection surface is not parallel to a substrate surface by a simple method. The method includes: a step 1 of forming a composition layer satisfying a condition 1, a condition 2, or a 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.
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