公开(公告)号：US20210011374A1

公开(公告)日：2021-01-14

申请号：US16961563

申请日：2019-01-11

Applicant: Dexerials Corporation

Inventor： Kazuyuki Shibuya ,  Shigeshi Sakakibara ,  Toshiaki Sugawara ,  Yusuke Matsuno ,  Akio Takada

IPC: G03F7/00 ,  G02B5/30 ,  G03F1/38

Abstract: Provided are a pattern formation method and a method for manufacturing a polarizing plate using the pattern formation method, the pattern formation method having: a step for forming, on a substrate, a linear guide pattern which is arranged at a predetermined pitch and is compatible with a portion of block chains of a block copolymer, and a neutral pattern embedded in the pattern of the guide pattern; a step for forming a layer including a block copolymer on the guide pattern and the neutral pattern; a step for heat-treating the layer including the block copolymer and forming a lamellar structure in which lamellar boundaries are arranged perpendicular to the substrate by microphase separation of the block copolymer; and a step for selectively removing a portion of the block chains of the block copolymer and thereby forming a line-and-space-shaped fine pattern having a smaller pitch than the guide pattern.

公开(公告)号：US10859742B2

公开(公告)日：2020-12-08

申请号：US16058338

申请日：2018-08-08

Applicant: Dexerials Corporation

Inventor： Akio Takada

IPC: G02B5/30 ,  G02B1/18

Abstract: Provided is a polarizing plate having a wire grid structure, including: a transparent substrate; grid-shaped protrusions that are arranged in a one-dimensional grid shape on the transparent substrate at a pitch shorter than a wavelength of light in a use band and extend in a predetermined direction, in which the grid-shaped protrusions include a first grid-shaped protrusion group arranged, at a first pitch P1 and a second grid-shaped protrusion group arranged at a second pitch P2 between the adjacent grid-shaped protrusions of the first grid-shaped protrusion group, and in which a width W1 of the grid-shaped protrusion in the first grid-shaped protrusion group is larger than a width W2 of the grid-shaped protrusion in the second grid-shaped protrusion group. In addition, provided is an optical device including the polarizing plate.

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.

公开(公告)号：US20200209451A1

公开(公告)日：2020-07-02

申请号：US16640609

申请日：2019-07-30

Applicant: DEXERIALS CORPORATION

Inventor： Kazuyuki Shibuya ,  Shigeshi Sakakibara ,  Toshiaki Sugawara ,  Yusuke Matsuno ,  Akio Takada

IPC: G02B5/30 ,  G02F1/1335

Abstract: Provided is a polarizing plate that is a polarizing plate having a wire grid structure, and includes a transparent substrate and a plurality of protrusions that extend in a first direction on the transparent substrate and are periodically arranged at a pitch shorter than a wavelength of light in a use band. Each of the protrusions includes a reflective layer, a multilayer film, and an optical property improving layer located between the reflective layer and the multilayer film. The optical property improving layer contains an oxide that contains a constituent element of which the reflective layer is composed. An etching rate of the optical property improving layer with respect to a chlorine-based gas is no less than 6.7 times and no more than 15 times an etching rate of the multilayer film.

公开(公告)号：US20190049643A1

公开(公告)日：2019-02-14

申请号：US16058338

申请日：2018-08-08

Applicant: Dexerials Corporation

Inventor： Akio Takada

IPC: G02B5/30 ,  G02B1/18

Abstract: Provided is a polarizing plate having a wire grid structure, including: a transparent substrate; grid-shaped protrusions that are arranged in a one-dimensional grid shape on the transparent substrate at a pitch shorter than a wavelength of light in a use band and extend in a predetermined direction, in which the grid-shaped protrusions include a first grid-shaped protrusion group arranged, at a first pitch P1 and a second grid-shaped protrusion group arranged at a second pitch P2 between the adjacent grid-shaped protrusions of the first grid-shaped protrusion group, and in which a width W1 of the grid-shaped protrusion in the first grid-shaped protrusion group is larger than a width W2 of the grid-shaped protrusion in the second grid-shaped protrusion group. In addition, provided is an optical device including the polarizing plate.

公开(公告)号：US09678261B2

公开(公告)日：2017-06-13

申请号：US15248659

申请日：2016-08-26

Applicant: DEXERIALS CORPORATION

Inventor： Koji Sasaki ,  Akio Takada

IPC: G02B5/30 ,  G02B1/14 ,  G02F1/1335 ,  G02B5/00

CPC classification number: G02B5/3058 ,  G02B1/14 ,  G02B5/003 ,  G02B5/3025 ,  G02B5/3041 ,  G02F1/133528 ,  G02F2001/133548

Abstract: To provide an inorganic polarizing plate which, when used in structures having different used wavelength bands, can reduce reflectance by using a common structure, making it possible to achieve a predetermined light extinction ratio. The inorganic polarizing plate has a substrate that is transparent to light in a used bandwidth, a reflective layer that is composed of grids that are formed on one surface of the substrate with a pitch that is smaller than a wavelength of light in the used bandwidth, a dielectric layer that is stacked on the reflective layer, and an absorbing layer containing FeSi fine particles.

公开(公告)号：US09594275B2

公开(公告)日：2017-03-14

申请号：US14494255

申请日：2014-09-23

Applicant: DEXERIALS CORPORATION

Inventor： Nobuyuki Koike ,  Akio Takada ,  Naoki Hanashima

IPC: G02F1/1335 ,  G02F1/13363 ,  G02B5/30 ,  G02F1/139 ,  G02B1/115

CPC classification number: G02F1/133634 ,  B32B2457/202 ,  G02B1/115 ,  G02B5/3041 ,  G02B5/3083 ,  G02F1/133632 ,  G02F1/1397 ,  G02F2413/02 ,  G02F2413/06

Abstract: The present application provides a retardation element, having a first birefringent layer; and a second birefringent layer which has approximately the same average thickness as that of the first birefringent layer and contacts the first birefringent layer such that an angle formed between a first line segment representing the principal axis of refractive index anisotropy of the first birefringent layer and a second line segment representing the principal axis of refractive index anisotropy of the second birefringent layer is neither 0° nor 180° when the first line segment and the second line segment are projected on the transparent substrate such that an end A of the first line segment at a side of the transparent substrate and an end B of the second line segment at a side of the transparent substrate coincide with each other.

Abstract translation: 本申请提供了具有第一双折射层的延迟元件; 以及第二双折射层，其具有与第一双折射层大致相同的平均厚度并与第一双折射层接触，使得形成在表示第一双折射层的折射率各向异性主轴的第一线段与第一双折射层之间形成的角度 当第一线段和第二线段投影在透明衬底上时，表示第二双折射层的折射率各向异性的主轴的第二线段既不是0°也不是180°，使得第一线段的端部A在 透明基板的一侧和第二线段的端部B在透明基板的一侧彼此重合。

公开(公告)号：US09453954B2

公开(公告)日：2016-09-27

申请号：US14952494

申请日：2015-11-25

Applicant: DEXERIALS CORPORATION

Inventor： Koji Sasaki ,  Akio Takada

IPC: G02B5/30 ,  G02B1/14 ,  G02B5/00

CPC classification number: G02B5/3058 ,  G02B1/14 ,  G02B5/003 ,  G02B5/3025 ,  G02B5/3041 ,  G02F1/133528 ,  G02F2001/133548

Abstract: To provide an inorganic polarizing plate which, when used in structures having different used wavelength bands, can reduce reflectance by using a common structure, making it possible to achieve a predetermined light extinction ratio. The inorganic polarizing plate has a substrate that is transparent to light in a used bandwidth, a reflective layer that is composed of grids that are formed on one surface of the substrate with a pitch that is smaller than a wavelength of light in the used bandwidth, a dielectric layer that is stacked on the reflective layer, and an absorbing layer containing FeSi fine particles.

Abstract translation: 提供一种无机偏光板，当在具有不同的使用波长带的结构中使用时，可以通过使用共同的结构来降低反射率，从而可以获得预定的消光比。 无机偏光板具有在使用带宽中对光透明的基板，由在被使用的带宽中的光的波长小于基板的一个表面上形成的格栅构成的反射层， 层叠在反射层上的介电层和含有FeSi微粒的吸收层。

公开(公告)号：US20160274287A1

公开(公告)日：2016-09-22

申请号：US15070702

申请日：2016-03-15

Applicant: DEXERIALS CORPORATION

Inventor： Nobuyuki Koike ,  Masatoshi Sasaki ,  Akio Takada

IPC: G02B5/30 ,  G02F1/09

CPC classification number: G02B5/3083 ,  G02B27/288 ,  G02F1/093

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.

公开(公告)号：US20150132596A1

公开(公告)日：2015-05-14

申请号：US14397923

申请日：2013-05-01

Applicant: DEXERIALS CORPORATION ,  TOHOKU UNIVERSITY

Inventor： Takatoshi Yamada ,  Akio Takada ,  Hiroo Yugami ,  Fumitada Iguchi ,  Makoto Shimizu

IPC: F24J2/48 ,  C25F3/06 ,  C23F1/00 ,  C09K5/14 ,  H01B13/00

CPC classification number: F24S70/12 ,  C09K5/14 ,  C23F1/00 ,  C25F3/06 ,  C25F3/14 ,  F24S70/16 ,  F24S70/20 ,  H01B13/0026 ,  Y02E10/40 ,  Y10T428/12361 ,  Y10T428/12611 ,  Y10T428/1266 ,  Y10T428/12667 ,  Y10T428/24612 ,  Y10T428/26

Abstract: Provided are a heat-absorbing material having high heat resistance and high wavelength selectivity, and a process for producing the same. The heat-absorbing material includes: a heat-resistant metal having the substantially same periodic structure in the light incidence plane as the wavelength of sunlight having a specific wavelength in the wavelength regions of visible light and near-infrared rays; and a cermet formed on the light incidence plane of the heat-resistant metal. Thus, there can be achieved desirable absorption and radiation characteristics being such that absorption is performed in the visible light region meanwhile reflection is performed in the infrared region. Furthermore, the cermet does not need complicated film-formation control, and therefore, the high heat resistance can be maintained.

Abstract translation: 提供具有高耐热性和高波长选择性的吸热材料及其制造方法。 吸热材料包括：在可见光和近红外线的波长区域中在光入射面中具有与具有特定波长的太阳光波长大致相同的周期性结构的耐热金属; 以及形成在耐热金属的光入射面上的金属陶瓷。 因此，可以获得期望的吸收和辐射特性，使得在可见光区域中进行吸收，同时在红外区域中进行反射。 此外，金属陶瓷不需要复杂的成膜控制，因此可以保持高的耐热性。