公开(公告)号：US10775538B2

公开(公告)日：2020-09-15

申请号：US15693918

申请日：2017-09-01

Applicant: Dexerials Corporation

Inventor： Masahiro Oowada

IPC: G02B5/30 ,  B32B38/10 ,  C03C17/34 ,  B32B3/30 ,  B32B15/04 ,  C03C15/00 ,  C03C17/36 ,  B32B37/02

Abstract: Disclosed is an inorganic polarizing plate that exhibits improved heat resistance while suppressing an increase in lead time resulting from addition of process steps and an increase in costs. An inorganic polarizing plate 1 includes: a substrate (11) transparent to light having a wavelength within a used band; a plurality of linear reflective film layers (12) arranged on the substrate (11) at pitches smaller than the wavelength of the light within the used band; a plurality of dielectric film layers (13) arranged on the corresponding reflective film layers (12); and a plurality of absorptive film layers (14) arranged on the corresponding dielectric film layers (13). Each of the absorptive film layers (14) includes: a property-oriented layer (15); and a heat-resistance-oriented layer (16) made of the same material as the property-oriented layer (15) and having an extinction coefficient greater than an extinction coefficient of the property-oriented layer (15).

公开(公告)号：US20200284969A1

公开(公告)日：2020-09-10

申请号：US16882859

申请日：2020-05-26

Applicant: Dexerials Corporation

Inventor： Masahiro Oowada

IPC: F21V8/00 ,  G02F1/1335

Abstract: Provided is a polarizing plate having high transmittance characteristics and high durability.A polarizing plate 1 with a wire grid structure includes a transparent substrate 10, and a grid-shaped projecting portion 11 which is arranged on the transparent substrate 10 at a pitch shorter than a wavelength of light in a used bandwidth and extends in a predetermined direction. The grid-shaped projecting portion 11 includes a reflection layer 12, a dielectric layer 13, and an absorption layer 14 in this order from the side of the transparent substrate 10. A protection layer 15 is provided on a surface of the grid-shaped projecting portion 11, and covers all of an upper surface and a side surface of the absorption layer 14 and all of a side surface of the dielectric layer 13, and at least a part of a side surface of the reflection layer 12. The protection layer 15 on the side surface of the reflection layer 12 is thinner than the protection layer 15 on the side surface of the absorption layer 14.

公开(公告)号：US20180267221A1

公开(公告)日：2018-09-20

申请号：US15542302

申请日：2016-01-07

Applicant: Dexerials Corporation

Inventor： Masahiro Oowada ,  Takahiro Kimura

IPC: G02B5/30 ,  G02F1/1335 ,  G03B21/14

CPC classification number: G02B5/3058 ,  G02B5/3033 ,  G02F1/1335 ,  G02F2001/133548 ,  G03B21/14 ,  G03B21/2073

Abstract: Provided is inorganic polarizing plate, including in order of reciting: a substrate transparent to light in a bandwidth used; a first dielectric layer; a plurality of linear metal layers; a plurality of linear second dielectric layers; and a plurality of linear light absorbing layers, wherein the plurality of linear metal layers are arranged on the first dielectric layer at intervals shorter than a wavelength of the light, the plurality of linear second dielectric layers are arranged on the plurality of linear metal layers, respectively, the plurality of linear light absorbing layers are arranged on the plurality of linear second dielectric layers, respectively, and the inorganic polarizing plate includes a water repelling layer at peripheral ends of the inorganic polarizing plate at which longer-direction ends of the linear metal layers are present, to cover longer-direction ends of the linear metal layers, linear second dielectric layers, and linear light absorbing layers.