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：US20240142681A1

公开(公告)日：2024-05-02

申请号：US18397360

申请日：2023-12-27

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Takeru WAKABAYASHI ,  Takashi NAGATA

IPC: G02B5/20

CPC classification number: G02B5/208

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-5), (i-7) to (i-10), (i-12) and (i-14).

公开(公告)号：US20230266513A1

公开(公告)日：2023-08-24

申请号：US18185511

申请日：2023-03-17

Applicant: AGC Inc.

Inventor： Yuichiro ORITA ,  Kazuhiko SHIONO ,  Takashi NAGATA

IPC: G02B5/22 ,  G02B5/28

CPC classification number: G02B5/223 ,  G02B5/281

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 (I) having a maximum absorption wavelength in a wavelength of 690 to 900 nm in dichloromethane, and a resin, the optical filter transmits visible light and light in at least part of a wavelength of 900 to 1,000 nm, and the optical filter satisfies specific spectroscopic characteristics.

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：US20220179141A1

公开(公告)日：2022-06-09

申请号：US17651911

申请日：2022-02-22

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Sayuri YAMADA ,  Yayoi YAMAMORI

IPC: G02B5/22 ,  C09B57/00 ,  G02B5/00

Abstract: The present invention relates to an optical filter including an absorption layer containing a near-infrared absorbing dye and a resin, in which the near-infrared absorbing dye contains a squarylium dye having a maximum absorption wavelength in 650 to 780 nm and a thermal decomposition temperature of 265° C. or higher and satisfying IR20−IR80

公开(公告)号：US20250044489A1

公开(公告)日：2025-02-06

申请号：US18922613

申请日：2024-10-22

Applicant: AGC Inc.

Inventor： Motoshi NAKAYAMA ,  Takahiro SAKAGAMI ,  Takashi NAGATA ,  Kazuhiko SHIONO

IPC: G02B5/20 ,  G02B1/113 ,  G02B5/28

Abstract: The present invention pertains to an optical filter including: a light-absorbing material Y900-1000 having a maximum absorption wavelength in a wavelength region of 900 nm to 1,000 nm, and a dielectric multilayer film, in which the optical filter satisfies all of spectral characteristics (i-1) to (i-6), and the optical filter may satisfy spectral characteristic (i-7).

公开(公告)号：US20240427068A1

公开(公告)日：2024-12-26

申请号：US18815960

申请日：2024-08-27

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Kiyokazu ENDO ,  Takashi NAGATA

IPC: G02B5/22 ,  H01L27/146

Abstract: An optical filter includes: a substrate; a dielectric multilayer film (I) laid on or above one main surface of the substrate; and a dielectric multilayer film (II) laid on or above the other main 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 dye (NIR1), and the optical filter satisfies specific spectral characteristics.

公开(公告)号：US20240345291A1

公开(公告)日：2024-10-17

申请号：US18751442

申请日：2024-06-24

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Motoshi NAKAYAMA ,  Takashi NAGATA

IPC: G02B1/115 ,  G02B1/14 ,  G02B5/22 ,  G02B5/28

CPC classification number: G02B1/115 ,  G02B1/14 ,  G02B5/223 ,  G02B5/287

Abstract: An optical filter includes: a substrate; and a dielectric multilayer film (A) laid on or above at least one main surface of the substrate as an outermost layer, the dielectric multilayer film (A) being configured to reflect a light in a wavelength region of 900 nm or more, in which the substrate includes a resin film including a resin and a dye (I) having a maximum absorption wavelength of 700 nm to 800 nm in the resin, the optical filter transmits a visible light and a light in at least a partial wavelength region of 750 nm to 1000 nm, and the optical filter satisfies all of spectral characteristics (i-1) to (i-9).

公开(公告)号：US20220291433A1

公开(公告)日：2022-09-15

申请号：US17804007

申请日：2022-05-25

Applicant: AGC Inc.

Inventor： Motoshi NAKAYAMA ,  Kazuhiko SHIONO ,  Ryo HIRANO

IPC: G02B5/28 ,  G02B1/04

Abstract: The present invention relates to an optical filter including a resin base material including an infrared-absorbing pigment layer, and a pair of inorganic dielectric layers which are respectively disposed on or above both main surfaces of the resin base material as outermost layers, in which at least one of the pair of inorganic dielectric layers satisfies at least one of a condition in which a film thickness is 4 μm or greater, and a condition in which the number of layers is 30 or greater, and a ratio of a total film thickness of the pair of inorganic dielectric layers to a film thickness of the resin base material is greater than 8%.

公开(公告)号：US20190227208A1

公开(公告)日：2019-07-25

申请号：US16369653

申请日：2019-03-29

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Asana YOSHIOKA ,  Shoko SUZUKI ,  Hiroki HOTAKA

IPC: G02B5/20 ,  G02B5/22 ,  C09B23/10 ,  C09B57/00 ,  G02B5/08

Abstract: To provide an optical filter having shielding effects against near ultraviolet rays and near infrared rays. An optical filter comprising a transparent resin body having a single layer or multilayer structure, and containing a near ultraviolet absorbing dye (U) which is a compound represented by the following formula (U) and which has an absorption maximum at a wavelength of from 370 to 425 nm and has a molar absorptivity at the maximum absorption wavelength of at least 50,000 [L/(mol·cm)], and a near infrared absorbing dye (A) which has an absorption maximum at a wavelength of from 600 to 800 nm: In the formula (U), Y is an oxygen atom, a methylene group or a dimethylene group, R1 is a monovalent hydrocarbon group which may have a substituent, or the like, R2 to R5 are a hydrogen atom, an alkyl group, an alkoxy group or the like, and X is a bivalent group represented by any one of the formulae (X1) to (X5) or the like.