-
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
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：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
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
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：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).
-
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.
-
Patent Agency Ranking
公开(公告)号：US20210255374A1
公开(公告)日：2021-08-19
申请号：US17227520
申请日：2021-04-12
Applicant: AGC Inc.
Inventor： Ryota MURAKAMI , Kensuke ONO , Motoshi NAKAYAMA
IPC: G02B5/18 , G01S17/931 , G01S7/481 , G02B27/44
Abstract: A diffractive optical element includes: a diffraction unit; and a lens unit disposed on a light incident side of the diffraction unit. The lens unit includes: a substrate; and a protrusion and recess portion disposed on a side opposite to a light incident side of the substrate. The protrusion and recess portion includes: a periodic structure of a relief-protrusion portion disposed in a central part, a periodic structure of a stepwise grating disposed in a central part simulating the relief-protrusion portion, or a combination thereof; and a grating disposed in a portion other than the central part. The number of steps of the stepwise grating disposed in the central part is larger than the number of steps of the grating disposed in the portion other than the central part.
-
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.
-
公开(公告)号：US20250052935A1
公开(公告)日：2025-02-13
申请号：US18922524
申请日：2024-10-22
Applicant: AGC Inc.
Inventor： Motoshi NAKAYAMA , Takahiro SAKAGAMI , Takashi NAGATA , Kazuhiko SHIONO
IPC: G02B5/22
Abstract: An optical filter includes: an absorber including an inorganic material including ytterbium; an absorption layer including a dye and a resin, the dye having a maximum absorption wavelength between 350 nm and 1,200 nm; and a dielectric multilayer film. The absorber may have a flat plate shape, and the absorber may have a thickness of 3 mm or less.
-
公开(公告)号：US20250044490A1
公开(公告)日：2025-02-06
申请号：US18922590
申请日：2024-10-22
Applicant: AGC Inc.
Inventor： Motoshi NAKAYAMA , Takahiro SAKAGAMI , Takashi NAGATA , Kazuhiko SHIONO
IPC: G02B5/22
Abstract: An optical filter includes: a light-absorbing material X800S having a maximum absorption wavelength in a wavelength region shorter than 800 nm; a light-absorbing material Y850L having a maximum absorption wavelength in a wavelength region longer than 850 nm; and a dielectric multilayer film, in which the optical filter satisfies spectral characteristics (i-1) to (i-5).
-
公开(公告)号：US20240061165A1
公开(公告)日：2024-02-22
申请号：US18384838
申请日：2023-10-28
Applicant: AGC Inc.
Inventor： Motoshi NAKAYAMA , Mitsuo OSAWA
CPC classification number: G02B6/0016 , G02B6/0036 , G02B6/0065 , G02B27/0172
Abstract: A light guide element includes a light guide substrate that is a single-layer light guide substrate; and a diffraction layer formed on the light guide substrate. The diffraction layer includes a first diffraction grating configured to in-couple light into the light guide substrate; and a second diffraction grating configured to outcouple totally internally reflected light having propagated in the light guide substrate out of the light guide substrate. The first diffraction grating in-couples the incident light in a range of 60 degrees or more including a direction normal to substrate, for at least one of first wavelength of 450 nm±20 nm, second wavelength of 530 nm±20 nm, and third wavelength of 630 nm±20 nm. The second diffraction grating outcouples the totally internally reflected light in a range of 60 degrees or more including the direction normal to substrate, for at least one of the first, second, and third wavelengths.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.024 seconds)
