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1.
公开(公告)号:US11262491B2
公开(公告)日:2022-03-01
申请号:US16675777
申请日:2019-11-06
Applicant: Dexerials Corporation
Inventor: Akio Takada , Eiji Takahashi , Nobuyuki Koike , Koji Sasaki
IPC: G02B5/30 , G02F1/1335 , G02B5/18
Abstract: Provided are a polarizing plate having excellent optical characteristics, and a method for manufacturing the polarizing plate. The present invention is provided with: a translucent substrate through which light passes in a working band; a bundle structure layer constituted of a columnar sheaf comprising one or more material from among dielectrics, metals, and semiconductors, the bundle structure layer being formed on the translucent substrate; an absorption layer formed on the bundle structure layer; a dielectric layer formed on the absorption layer; and a reflection layer formed on the dielectric layer and arranged as a one-dimensional lattice at a pitch that is smaller than the wavelength of the light in the working band. Because the bundle structure layer increases light absorption and light scattering, the result is that reflectivity can be reduced and excellent optical characteristics obtained.
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公开(公告)号:US10907250B2
公开(公告)日:2021-02-02
申请号:US15661041
申请日:2017-07-27
Applicant: Dexerials Corporation
Inventor: Eiji Takahashi , Akio Takada , Nobuyuki Koike
Abstract: Provided are a block copolymer pattern formation method that enables formation, over a large area, of a block copolymer pattern with a perpendicularly oriented lamellar structure enabling nanoscale surface shape control, and a diffraction limited optical element produced using the block copolymer pattern formation method. The block copolymer pattern formation method is a method for forming a block copolymer pattern on a substrate and includes forming an oblique angle vapor deposited film on the substrate, applying a block copolymer onto the oblique angle vapor deposited film that has been formed, and subjecting the block copolymer that has been applied to perpendicularly oriented lamellar structure development post-treatment to form a pattern with a perpendicularly oriented lamellar structure.
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公开(公告)号:US10317599B2
公开(公告)日:2019-06-11
申请号:US15070702
申请日:2016-03-15
Applicant: DEXERIALS CORPORATION
Inventor: Nobuyuki Koike , Masatoshi Sasaki , Akio Takada
Abstract: A wavelength plate, wherein first birefringent layer and second birefringent layer are laminated such that in-plane directions of optical axes of first birefringent layer and second birefringent layer cross each other, wherein the wavelength plate satisfies formulae (1), (2), (3), and (4), and wherein at least one of first birefringent layer and second birefringent layer is obliquely-deposited birefringent layer formed by oblique deposition, Δn1×t1=λ/2 (1) 1.7≤(Δn1×t1)/(Δn2×t2)≤2.7 (2) 5°≤θ1≤30° (3) (2θ1+35°)≤θ2≤(2θ1+50°) (4) where Δn1 represents birefringence of first birefringent layer, Δn2 represents birefringence of second birefringent layer, t1 represents a film thickness of first birefringent layer, t2 represents a film thickness of second birefringent layer, θ1 represents angle between optical axis of first birefringent layer and incident linearly polarized light, θ2 represents angle between optical axis of second birefringent layer and incident linearly polarized light, and λ represents a predetermined value in a range of wavelengths of incident light.
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公开(公告)号:US09952368B2
公开(公告)日:2018-04-24
申请号:US14901607
申请日:2014-06-27
Applicant: Dexerials Corporation
Inventor: Koji Sasaki , Masatoshi Sasaki , Nobuyuki Koike , Akio Takada
CPC classification number: G02B5/3083 , B32B37/1284 , B32B2307/42 , C09J5/00 , C09J2483/00 , G02B27/283 , G02B27/286
Abstract: This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, which is provided with a polarizing beam-splitter array in which polarizing beam splitters having polarization separation layers and reflecting prisms having reflective layers are bonded together in alternation, said polarizing beam splitters and reflecting prisms are bonded together by first adhesive layers each comprising a silicone adhesive.
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5.
公开(公告)号:US09946001B2
公开(公告)日:2018-04-17
申请号:US15194056
申请日:2016-06-27
Applicant: DEXERIALS CORPORATION
Inventor: Nobuyuki Koike
IPC: G02B5/30 , G02B27/28 , B05D5/06 , C23C14/08 , C23C14/58 , G02F1/01 , G02F1/13363 , C23C14/22 , G02B5/32
CPC classification number: G02B5/3083 , C23C14/083 , C23C14/225 , C23C14/226 , C23C14/5806 , C23C14/5886 , G02B5/32 , G02F1/0126 , G02F1/13363 , G02F2202/13 , Y10T428/24612
Abstract: A phase difference element has a transparent substrate and a birefringent film with tantalum oxide and titanium oxide obliquely deposited on one surface of the transparent substrate. The birefringent film has a first photorefractive film and a second photorefractive film laminated to each other and having different oblique deposition directions. The ratio of titanium atoms to the total of titanium atoms and tantalum atoms in the birefringent film is 4.0 atomic % or higher to 30 atomic % or lower.
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公开(公告)号:US09687809B2
公开(公告)日:2017-06-27
申请号:US14865054
申请日:2015-09-25
Applicant: Dexerials Corporation
Inventor: Shigeshi Sakakibara , Akio Takada , Shintaro Futakami , Nobuyuki Koike
CPC classification number: B01J19/0093 , B01J19/123 , B01J19/24 , B01J19/249 , B01J2219/00786 , B01J2219/00801 , B01J2219/00831 , B01J2219/0086 , B01J2219/00903 , B01J2219/00936 , B01J2219/0209 , B01J2219/0884 , B01J2219/0888 , B01J2219/2458 , B01J2219/2488 , B01J2219/2497
Abstract: A small reactor, which contains an inorganic transparent substrate, which contains: a reaction channel configured to allow a chemical reaction to proceed therein; a supply channel, which is connected to one end of the reaction channel, and is configured to supply samples to be reacted in the reaction channel; and a discharge channel, which is connected to the other end of the reaction channel, and is configured to discharge a reaction product from the reaction channel, wherein the inorganic transparent substrate is in the shape of an arc-shaped curve.
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公开(公告)号:US11002993B2
公开(公告)日:2021-05-11
申请号:US15185305
申请日:2016-06-17
Applicant: Dexerials Corporation
Inventor: Akio Takada , Eiji Takahashi , Nobuyuki Koike , Koji Sasaki , Naoki Hanashima
IPC: G02F1/01 , G02B5/30 , G02B1/14 , G02F1/1335
Abstract: Provided is a depolarizing plate having a superior degree of depolarization to conventional depolarizing plates. The depolarizing plate includes a light-transmitting substrate having a surface layer portion in which a fine pattern is provided that includes a plurality of curved lines randomly disposed at a pitch of no greater than a wavelength of light, and that exhibits structural birefringence.
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公开(公告)号:US10042176B2
公开(公告)日:2018-08-07
申请号:US14892935
申请日:2014-06-27
Applicant: DEXERIALS CORPORATION
Inventor: Koji Sasaki , Masatoshi Sasaki , Nobuyuki Koike , Akio Takada , Katsuhiro Shindo , Toshiaki Sugawara , Kouichi Miyagi , Masahiro Oowada
IPC: G02B27/28 , G02B1/14 , G02B5/30 , C09J183/04 , G02B5/04
Abstract: This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, inorganic half-wave plates provided selectively on the output surface of a polarizing beam-splitter array have obliquely deposited layers comprising a dielectric material and the side surfaces of said obliquely deposited layers are covered by protective films.
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9.
公开(公告)号:US20180164642A1
公开(公告)日:2018-06-14
申请号:US15836527
申请日:2017-12-08
Applicant: Dexerials Corporation
Inventor: Nobuyuki Koike , Akio Takada
IPC: G02F1/13363 , G02F1/00 , G02F1/03 , G02F1/139
Abstract: An object is to provide a phase difference compensation element capable of improving the contrast of a liquid crystal display device while solving the problems of a high cost, an increase in the lead time, an increase in the mounting space, and the durability. A phase difference compensation element includes: a phase difference imparting and reflection preventing layer; a first birefringence layer and a second birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and a surface of a transparent substrate is not 90 degrees; a third birefringence layer in which an angle of a corner formed by a main axis of refractive index anisotropy and the surface of the transparent substrate is 0 degrees, wherein, when segments acquired when the main axes of the first, second, and third birefringence layers are projected onto the transparent substrate are respectively denoted by a segment A, a segment B, and a segment C, relations of the following (1) and (2) are satisfied. (1) The angle of the corner formed by the segment A and the segment B is 45 degrees or more and 70 degrees or less. (2) The segment A and the segment C are approximately parallel with each other, or the segment B and the segment C are approximately parallel with each other.
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公开(公告)号:US10732335B2
公开(公告)日:2020-08-04
申请号:US14904337
申请日:2014-07-11
Applicant: Dexerials Corporation
Inventor: Akio Takada , Eiji Takahashi , Nobuyuki Koike , Koji Sasaki
IPC: G02B5/30 , G02B5/18 , G02F1/1335
Abstract: Provided are a polarizing plate having excellent optical characteristics, and a method for manufacturing the polarizing plate. The present invention is provided with: a translucent substrate through which light passes in a working band; a bundle structure layer constituted of a columnar sheaf comprising one or more material from among dielectrics, metals, and semiconductors, the bundle structure layer being formed on the translucent substrate; an absorption layer formed on the bundle structure layer; a dielectric layer formed on the absorption layer; and a reflection layer formed on the dielectric layer and arranged as a one-dimensional lattice at a pitch that is smaller than the wavelength of the light in the working band. Because the bundle structure layer increases light absorption and light scattering, the result is that reflectivity can be reduced and excellent optical characteristics obtained.
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