公开(公告)号：US20210302639A1

公开(公告)日：2021-09-30

申请号：US16627638

申请日：2019-07-12

Applicant: DEXERIALS CORPORATION

Inventor： Shigeshi SAKAKIBARA ,  Akio TAKADA ,  Kazuyuki SHIBUYA ,  Toshiaki SUGAWARA ,  Yuusuke MATSUNO

IPC: G02B5/30

Abstract: A polarizing plate having excellent optical properties includes: a transparent substrate that is transparent to light in a used wavelength band; grid-shaped protrusions arranged on the transparent substrate at a pitch shorter than the wavelength of light in the used band, extending in a predetermined direction, and has a reflective layer and a reflection control layer; and a groove which is recessed between the grid-shaped protrusions and whose width in a direction orthogonal to the predetermined direction is reduced to zero in the depth direction. This improves transmittance and reflectance properties, thereby achieving excellent optical properties.

公开(公告)号：US20190250313A1

公开(公告)日：2019-08-15

申请号：US16271965

申请日：2019-02-11

Applicant: DEXERIALS CORPORATION

Inventor： Kazuyuki SHIBUYA ,  Hideto SAGAWA ,  Takahiro KIMURA ,  Naoki HANASHIMA

IPC: G02B5/02 ,  G02B3/00 ,  G02B1/115 ,  G03B21/62

CPC classification number: G02B5/0221 ,  G02B1/115 ,  G02B3/0043 ,  G02B5/0252 ,  G02B5/0294 ,  G03B21/62

Abstract: There is provided a microlens array diffuser plate including: a microlens group positioned on a surface of a transparent substrate. The microlens group at least corresponding to a light ray entering part in the microlens array diffuser plate includes two or more unit cells that are continuous in an array sequence, and the unit cells include a plurality of microlenses positioned on the surface of the transparent substrate. The light ray entering part has at least two regions having different average diffusion angles

公开(公告)号：US20220260768A1

公开(公告)日：2022-08-18

申请号：US17596948

申请日：2020-06-26

Applicant: Dexerials Corporation

Inventor： Koji SASAKI ,  Naoki HANASHIMA ,  Kazuyuki SHIBUYA

IPC: G02B5/30 ,  G02B27/01

Abstract: To provide a polarization element having good polarization properties and excellent in heat dissipation property and manufacturing costs. In order to solve the above problem, a polarization element 1 of the present disclosure includes a substrate 10 made of a transparent inorganic material; a grid structural body 20 which is made of a transparent material, and includes a base portion 21 provided along a surface of the substrate 10 and protruding portions 22 protruding from the base portion 21 in a grid; and an optical functional layer 30 which is formed on the protruding portions 22, and includes an absorptive layer for absorbing light, a reflective layer for reflecting light, or a multilayer having at least the absorptive layer and the reflective layer.

公开(公告)号：US20210364147A1

公开(公告)日：2021-11-25

申请号：US17396116

申请日：2021-08-06

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：US20180306404A1

公开(公告)日：2018-10-25

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 ,  G02B3/00 ,  G02B5/02 ,  G03B21/14

CPC classification number: F21V5/02 ,  F21V5/00 ,  G02B1/115 ,  G02B1/118 ,  G02B3/0006 ,  G02B3/0043 ,  G02B5/02 ,  G02B5/0221 ,  G03B21/14 ,  G03B21/625

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.