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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
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).
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公开(公告)号：US20240176054A1
公开(公告)日：2024-05-30
申请号：US18418416
申请日：2024-01-22
Applicant: AGC Inc.
Inventor： Motoshi NAKAYAMA , Takashi NAGATA , Kazuhiko SHIONO , Takeru WAKABAYASHI
IPC: G02B5/20
CPC classification number: G02B5/208
Abstract: An optical filter, includes: a near infrared ray absorbing glass, dielectric multilayer films laid on or above both major surfaces of the near infrared ray absorbing glass, and an absorption layer laid on or above a surface of at least one of the dielectric multilayer films and having a maximum absorption wavelength in a near infrared light region, in which the optical filter satisfies all of spectral characteristics (i-1) to (i-5).
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公开(公告)号：US20240142680A1
公开(公告)日：2024-05-02
申请号：US18396795
申请日：2023-12-27
Applicant: AGC Inc.
Inventor： Kazuhiko SHIONO , 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-3), (i-6) to (i-8), and (i-10) to (i-13).
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公开(公告)号：US20250116803A1
公开(公告)日：2025-04-10
申请号：US18982967
申请日：2024-12-16
Applicant: AGC Inc.
Inventor： Kazuhiko SHIONO , Yayoi YAMAMORI , Takahiro SAKAGAMI , Takashi NAGATA , Katsushi KAMIJYO
Abstract: An optical filter includes a glass substrate having a first main surface, a second main surface opposite the first main surface, and an end surface connecting the first and second main surfaces, the glass substrate being a phosphate glass containing an absorbent, and a first antireflection layer disposed directly or indirectly on the first main surface of the glass substrate, wherein the first main surface of the glass substrate is coated with a first inorganic film, and a second inorganic film is provided directly or indirectly on the second main surface of the glass substrate, with the end surface being coated with a third inorganic film, and wherein the first inorganic film is a film that is closest to the glass substrate among films constituting the first antireflection layer, or a film that is different from a film composed of a plurality of films constituting the first antireflection layer.
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公开(公告)号：US20250052934A1
公开(公告)日：2025-02-13
申请号：US18927235
申请日：2024-10-25
Applicant: AGC Inc.
Inventor： Kazuhiko SHIONO , Takashi NAGATA
IPC: G02B5/20
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-3), (i-6) to (i-8), and (i-10) to (i-13).
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Patent Agency Ranking
公开(公告)号：US20190055160A1
公开(公告)日：2019-02-21
申请号：US16168975
申请日：2018-10-24
Applicant: AGC Inc.
Inventor： Takashi NAGATA , Hirofumi YAMAMOTO
Abstract: There is provided a glass article using an ultraviolet absorbing glass substrate, the glass article suppressing solarization and exhibiting a high visible light transmittance. A glass article, comprising a glass substrate absorbing light at a wavelength of 250 to 400 nm from the surface and an antireflection film provided on at least one surface of the glass substrate, wherein the glass article has an ultraviolet irradiation degradation degree (X) of 1.5% or less, wherein the ultraviolet irradiation degradation degree (X) is T0−T1, where T0 is an average transmittance of light at the wavelength of 250 to 400 nm from a surface of the antireflection film in an initial state, and T1 is an average transmittance of light at the wavelength of 250 to 400 nm from the surface of the antireflection film after irradiating the surface of the antireflection film with ultraviolet rays for one hour.
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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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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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