公开(公告)号：US20220276420A1

公开(公告)日：2022-09-01

申请号：US17663274

申请日：2022-05-13

Applicant: AGC Inc.

Inventor： Yuichiro ORITA ,  Kazuhiko SHIONO ,  Motoshi NAKAYAMA ,  Takuro SHIMADA

IPC: G02B5/22

Abstract: An optical filter includes: a transparent substrate; and an absorption layer on the transparent substrate, the absorption layer containing at least one dye (X) having a maximum absorption wavelength in 600 to 1000 nm. A laminate of the transparent substrate and the absorption layer satisfies all of the following characteristics (i-2) to (i-4): (i-2) a maximum internal transmittance in 700 to 850 nm is 35% or lower; (i-3) a difference between the maximum internal transmittance and a minimum internal transmittance in 700 to 850 nm is 20% or smaller; and (i-4) OD(A) and OD(B) satisfy the following relationship: OD(A)/OD(B)

公开(公告)号：US20240255681A1

公开(公告)日：2024-08-01

申请号：US18444829

申请日：2024-02-19

Applicant: AGC Inc.

Inventor： Yuichiro ORITA ,  Kazuhiko SHIONO ,  Takuro SHIMADA

IPC: G02B5/20

CPC classification number: G02B5/208

Abstract: An optical filter includes: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate, in which the substrate includes a resin film including a resin, a UV pigment 1 having a maximum absorption wavelength in 360 nm to 390 nm in the resin, and an IR pigment having a maximum absorption wavelength in 680 nm to 800 nm in the resin, and the optical filter satisfies all of spectral characteristics (i-1) to (i-8).

公开(公告)号：US20230258853A1

公开(公告)日：2023-08-17

申请号：US18303668

申请日：2023-04-20

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Takuro SHIMADA ,  Yuichiro ORITA ,  Nanako NISHIMOTO ,  Takashi NAGATA

IPC: G02B5/20 ,  G02B5/22

CPC classification number: G02B5/208 ,  G02B5/223 ,  G02B5/226

Abstract: An optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate as an outermost layer, in which the substrate includes a resin film including a dye (IR) and a resin, the dye (IR) has a maximum absorption wavelength in a wavelength of 680 to 800 nm in the resin, and the optical filter satisfies specific spectroscopic characteristics.

公开(公告)号：US20240192413A1

公开(公告)日：2024-06-13

申请号：US18401808

申请日：2024-01-02

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Takuro SHIMADA ,  Yuichiro ORITA ,  Kiyokazu ENDO ,  Takashi NAGATA

IPC: G02B5/20 ,  G02B5/22 ,  G02B5/28

CPC classification number: G02B5/208 ,  G02B5/223 ,  G02B5/226 ,  G02B5/285

Abstract: An optical filter, includes: a substrate, a dielectric multilayer film 1 laid on or above one major surface of the substrate, and a dielectric multilayer film 2 laid on or above the other major surface of the substrate, in which the substrate includes a near infrared ray absorbing glass and a resin film, the resin film includes a resin and a pigment (NIR1), and the optical filter satisfies all of spectral characteristics (i-1) to (i-7).

公开(公告)号：US20230145740A1

公开(公告)日：2023-05-11

申请号：US18155319

申请日：2023-01-17

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Takuro SHIMADA ,  Yuichiro ORITA

IPC: G02B5/28 ,  C08K5/3462 ,  C08K5/3415 ,  C08K5/45 ,  C08K5/3465 ,  C08K5/3475 ,  C08K5/3417 ,  C09B67/20 ,  C09B67/22

CPC classification number: G02B5/283 ,  C08K5/3462 ,  C08K5/3415 ,  C08K5/45 ,  C08K5/3465 ,  C08K5/3475 ,  C08K5/3417 ,  C09B67/0063 ,  C09B67/0033 ,  G02B5/285 ,  C08K2201/014 ,  G02B5/281

Abstract: The present invention relates to an optical filter including: a substrate; and a dielectric multilayer film laid on or above at least one major surface of the substrate, as an outermost layer, in which: the substrate includes a resin film containing a dye (U) having a maximum absorption wavelength in a range of 360 to 395 nm in dichloromethane, a dye (A) having a maximum absorption wavelength in a range of 600 to 800 nm in dichloromethane, and a resin; and the optical filter satisfies spectral characteristics (i-1) to (i-5).

公开(公告)号：US20220011484A1

公开(公告)日：2022-01-13

申请号：US17448562

申请日：2021-09-23

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Motoshi NAKAYAMA ,  Sayuri YAMADA ,  Takuro SHIMADA ,  Masumi MIYAZAKI ,  Aya ITO ,  Tatsuo YOKOTE

IPC: G02B5/20 ,  C09B57/00

Abstract: An optical filter includes: a resin substrate including a resin (P) which has a glass transition temperature of 200° C. or higher and which has specific transmittance properties; an external resin layer; and dielectric multilayer films. In a case where the external resin layer includes the polyimide resin, the optical filter includes an intermediate resin layer including a cycloolefin resin. At least one of the dielectric multilayer films is a near-infrared reflection layer. At least one of the external resin layer and the intermediate resin layer contains a near-infrared absorbing dye (A). The near-infrared absorbing dye (A) has a maximum absorption wavelength within a wavelength range of 800 nm to 1,200 nm. The proportion of a total thickness of members including a resin having a glass transition temperature of 200° C. or higher to a total thickness of the resin-including members is 85% or higher.