公开(公告)号：US11971568B2

公开(公告)日：2024-04-30

申请号：US17058396

申请日：2019-05-20

Applicant: Dexerials Corporation

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

IPC: G02B5/30

CPC classification number: G02B5/3058

Abstract: A polarizing plate may have high transmittance characteristics and suppressed reflected light. An optical device may be provided with the polarizing plate. The polarizing plate may have a wire grid structure that includes a transparent substrate and grid-like projection portions arranged on the transparent substrate at a pitch shorter than the wavelength of light in a used bandwidth and extending in a predetermined direction. The grid-like projection portions may each have a reflective layer and a dielectric layer in order from the transparent substrate side. When viewed from the predetermined direction, the reflective layer has may have a step on the side thereof and may have the largest bottom width on the transparent substrate side.

公开(公告)号：US11500140B2

公开(公告)日：2022-11-15

申请号：US16755441

申请日：2019-07-25

Applicant: DEXERIALS CORPORATION

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

IPC: G02B5/30 ,  G02F1/1335 ,  G02B1/118

Abstract: A polarizing plate includes a substrate and a plurality of projections which protrude with respect to the substrate, in which the plurality of projections are formed by periodically arraying projections extending in a first direction in plan view, each of the projections includes a reflective layer and a tip end portion, the tip end portion is arranged at a position further away from the substrate than the reflective layer, the tip end portion is continuously widened from a first end portion, which is a tip end, to a second end portion on a side close to the substrate in a first cut plane perpendicular to the substrate and the first direction, and a first surface of the tip end portion includes a continuous first curved surface.

公开(公告)号：US11385389B2

公开(公告)日：2022-07-12

申请号：US16601672

申请日：2019-10-15

Applicant: DEXERIALS CORPORATION

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

IPC: G02B1/18 ,  G02B5/30 ,  G02F1/1335 ,  G02B1/14

Abstract: Provided are a polarizing plate having excellent optical properties and durability, and a method for manufacturing the polarizing plate. The polarizing plate includes: a transparent substrate transparent to light in a used wavelength band; lattice-shaped protrusions arranged on the transparent substrate at a pitch shorter than the wavelength of light in the used wavelength band, extending in a predetermined direction, and having a reflective layer, a first dielectric layer, an absorbing layer, and a second dielectric layer in this order; a dielectric portion consisting of a dielectric discontinuously formed on a surface of the lattice-shaped protrusions and a surface of a bottom floor between the lattice-shaped protrusions; and a water-repellent portion formed on a surface of the dielectric portion and having water-repellent properties.

公开(公告)号：US10436964B2

公开(公告)日：2019-10-08

申请号：US15888332

申请日：2018-02-05

Applicant: Dexerials Corporation

Inventor： Akio Takada ,  Seiji Kumagai ,  Hideto Sagawa ,  Takahiro Kimura ,  Kazuyuki Shibuya ,  Toshiaki Sugawara ,  Shigeshi Sakakibara ,  Yusuke Matsuno

IPC: G02B5/30 ,  G02B1/14

Abstract: Provided is an inorganic polarizing plate having a wire grid structure including: a transparent substrate; and grid-shaped protrusions arranged on the transparent substrate at a pitch shorter than a wavelength of light in a use band, in which the grid-shaped-protrusion includes, in order from the transparent substrate side, a reflection layer and a reflection suppressing layer which includes a dielectric material and a non-dielectric material and of which a content of the non-dielectric material increases as a separation from the reflection layer increases. In addition, provided are a method of manufacturing the inorganic polarizing plate and an optical instrument including the inorganic polarizing plate.

公开(公告)号：US20150219804A1

公开(公告)日：2015-08-06

申请号：US14613100

申请日：2015-02-03

Applicant: DEXERIALS CORPORATION

Inventor： Takatoshi Yamada ,  Koji Sasaki ,  Akio Takada ,  Yusuke Matsuno

IPC: G02B5/08

CPC classification number: G02B5/0858 ,  B32B15/04 ,  B64G1/503 ,  G02B5/08 ,  G02B5/0808 ,  G02B5/0816 ,  G02B5/0833 ,  G02B5/26 ,  G02B5/282 ,  G02B7/008

Abstract: A heat radiation control element 11, which contains an inorganic layer 21 a surface of which has openings arranged two-dimensionally, and a reflecting film 22.

Abstract translation: 一种散热控制元件11，其包含其表面具有二维布置的开口的无机层21和反射膜22。

公开(公告)号：US11125413B2

公开(公告)日：2021-09-21

申请号：US15770816

申请日：2016-10-03

Applicant: DEXERIALS CORPORATION

Inventor： Naoki Hanashima ,  Akio Takada ,  Kazuyuki Shibuya ,  Yusuke Matsuno

IPC: F21V5/02 ,  G02B1/115 ,  G02B1/118 ,  G03B21/14 ,  G02B3/00 ,  G03B21/625 ,  F21V5/00 ,  G02B5/02

Abstract: There is provided a method to manufacture a diffuser plate with better productivity and exhibiting an excellent diffusion property and having excellent durability with respect to light having large coherence, the microlens array diffuser plate including: a microlens group positioned on a surface of a transparent substrate. The diffuser plate includes two or more unit cells that are continuously set in array, the unit cell includes a plurality of microlenses positioned on the surface of the transparent substrate, and ridge lines between the microlenses adjacent to each other are nonparallel to each other, and are nonparallel to the transparent substrate.

公开(公告)号：US20210208323A1

公开(公告)日：2021-07-08

申请号：US16755441

申请日：2019-07-25

Applicant: DEXERIALS CORPORATION

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

IPC: G02B5/30

Abstract: A polarizing plate includes a substrate and a plurality of projections which protrude with respect to the substrate, in which the plurality of projections are formed by periodically arraying projections extending in a first direction in plan view, each of the projections includes a reflective layer and a tip end portion, the tip end portion is arranged at a position further away from the substrate than the reflective layer, the tip end portion is continuously widened from a first end portion, which is a tip end, to a second end portion on a side close to the substrate in a first cut plane perpendicular to the substrate and the first direction, and a first surface of the tip end portion includes a continuous first curved surface.

公开(公告)号：US11029458B2

公开(公告)日：2021-06-08

申请号：US16145716

申请日：2018-09-28

Applicant: Dexerials Corporation

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

IPC: G02B1/14 ,  G02B5/30 ,  B32B9/00

Abstract: To provide a polarizing plate and an optical apparatus capable of improving durability while maintaining excellent optical characteristics. Provided is a polarizing plate 1 with a wire grid structure, including: a transparent substrate 10; and a grid-shaped convex portion 11 which is arranged on the transparent substrate 10 at a pitch P shorter than a wavelength of light of a use band, extends in a predetermined direction, and includes a reflection layer 12 formed of a light reflective material, wherein a surface of the grid-shaped convex portion 11 and a surface of a bottom surface portion of a groove formed between the grid-shaped convex portions 11 are provided with a protection film 20 which covers the surfaces thereof and the protection film 20 is formed by two kinds or more of protection films including an organic film formed of an organic material.

公开(公告)号：US20200341179A1

公开(公告)日：2020-10-29

申请号：US16963442

申请日：2019-05-29

Applicant: Dexerials Corporation

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

IPC: G02B5/30 ,  G02B5/22

Abstract: Provided is a polarizing plate having an appropriate reflectance characteristic formed from an inexpensive material by an inexpensive production device. In a polarizing plate having a wire grid structure including: a transparent substrate; and a grid-like projection that is arranged on the transparent substrate at a pitch smaller than a wavelength of light in a used band and extends in a predetermined direction, an absorption layer constituting the grid-like projection contains an impurity semiconductor obtained by adding a minute amount of a specific element to an intrinsic semiconductor.

公开(公告)号：US11579350B2

公开(公告)日：2023-02-14

申请号：US16867146

申请日：2020-05-05

Applicant: Dexerials Corporation

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

IPC: G02B5/30 ,  G02F1/1335

Abstract: Provided is a wire grid polarization plate that has heat resistance and excellent polarization properties, and has durability even in a thin wire structure with a small pitch, and an optical apparatus and a manufacturing method of a polarization plate. A periodic lamellar structure is formed with a material forming arrangement by self-assembling performance, and then, is metallized, and thus, metal wires arranged at a small pitch are prepared, and the obtained wires are fixed by a dielectric material.