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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).
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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
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.
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公开(公告)号：US20210191012A1
公开(公告)日：2021-06-24
申请号：US17193151
申请日：2021-03-05
Applicant: AGC Inc.
Inventor： Kazuhiko SHIONO , Motoshi NAKAYAMA , Tatsuo YOKOTE , Aya ITO
IPC: G02B5/20 , G02B1/04 , C09B57/00 , C09B67/20 , H01L27/146
Abstract: An optical filter includes: a resin substrate having a thickness of 20 μm or more and 110 μm or less; an absorption layer having a thickness of 0.25 μm or more and 12 μm or less and being disposed on at least one principal surface of the resin substrate; and dielectric multilayer films disposed as an outermost layer on both principal surfaces of the resin substrate. At least one of the dielectric multilayer films is a near-infrared reflection layer. The resin substrate includes a first transparent resin having a glass transition temperature of 170° C. or more and having specific optical properties. The absorption layer includes a near-infrared absorbing dye (A) and a second transparent resin having a glass transition temperature of 170° C. or more, and the near-infrared absorbing dye (A) satisfies specific optical properties in relation to the second transparent resin.
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公开(公告)号：US20250123431A1
公开(公告)日：2025-04-17
申请号：US19002256
申请日：2024-12-26
Applicant: AGC INC.
Inventor： Takashi NAGATA , Takahiro SAKAGAMI , Kazuhiko SHIONO
IPC: G02B5/20
Abstract: An optical filter includes: a dielectric multilayer film 1; a substrate comprising a near-infrared ray absorbing glass and a resin film; and a dielectric multilayer film 2 in this order. The resin film comprises a near-infrared ray absorbing dye and a resin, the near-infrared ray absorbing glass is a fluorophosphate glass containing P, Cu, and F, and the optical filter satisfies all of the spectral characteristics (i-1) to (i-3), (i-5), and (i-13).
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公开(公告)号：US20250116802A1
公开(公告)日：2025-04-10
申请号：US18988429
申请日：2024-12-19
Applicant: AGC Inc.
Inventor： Kazuhiko SHIONO , Takuro SHIMADA , Yuichiro ORITA , Takahiro SAKAGAMI , Takashi NAGATA , Katsushi KAMIJYO
Abstract: An optical filter includes a glass substrate having a first main surface and a second main surface opposite each other and including phosphoric acid glass, a first antireflective layer disposed directly or indirectly on the first main surface of the glass substrate, and a resin layer, containing dye, disposed as one or more layers directly or indirectly on the second main surface of the glass substrate, wherein the glass substrate includes a predetermined range of amount of oxides, wherein the dye has a maximum absorption wavelength in the resin layer at a wavelength range of 690 to 800 nm, wherein thickness of the resin layer is 10 μm or less, wherein the optical filter has all spectral characteristics specified in (a-1) to (a-6), and wherein a Haze value of the optical filter is 2% or less.
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Patent Agency Ranking
公开(公告)号：US20250051579A1
公开(公告)日：2025-02-13
申请号：US18927277
申请日：2024-10-25
Applicant: AGC Inc.
Inventor： Sayuri YAMADA , Kazuhiko SHIONO , Hiroki HOTAKA
Abstract: The present invention relates to an optical filter containing: an absorption layer containing a near-infrared absorbing dye (A) having a maximum absorption wavelength in dichloromethane being in a wavelength range of 850 to 1,100 nm and a transparent resin; and a reflection layer formed of a dielectric multilayer film, in which the near-infrared absorbing dye (A) satisfies the following Formulae (1) to (4). AB S 400 ( A ) DCM / AB S λ max ( A ) DCM
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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).
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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).
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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
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.
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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
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.
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