公开(公告)号：US20250060520A1

公开(公告)日：2025-02-20

申请号：US18938429

申请日：2024-11-06

Applicant: AGC Inc.

Inventor： Yuichiro ORITA ,  Kazuhiko SHIONO

IPC: G02B5/28

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 layer, the resin layer includes a transparent resin, a UV dye, and an IR dye that has a maximum absorption wavelength at a wavelength of 650 nm to 800 nm, and the UV dye satisfies all of characteristics (i-1) to (i-4).

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).

公开(公告)号：US20220112121A1

公开(公告)日：2022-04-14

申请号：US17645553

申请日：2021-12-22

Applicant: AGC INC.

Inventor： Takahiro SAKAGAMI ,  Kazuhiko SHIONO

IPC: C03C4/08 ,  C03C3/17 ,  C09D5/32 ,  C09D179/08 ,  C09D7/41 ,  G02B5/20 ,  C03C17/42

Abstract: A near-infrared cut filter glass has: an average transmittance in a wavelength range of 400-550 nm of 50-92%; a transmittance at a wavelength of 700 nm of 40-92%; an average transmittance in a wavelength range of 850-950 nm of 0.0001-70%; and an average transmittance in a wavelength range of 1200-2500 nm of 0.0001-60%.

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：US20250012956A1

公开(公告)日：2025-01-09

申请号：US18886330

申请日：2024-09-16

Applicant: AGC Inc.

Inventor： Kazuhiko SHIONO ,  Takeru WAKABAYASHI ,  Takashi NAGATA

IPC: G02B5/20

Abstract: An optical filter, includes: a substrate, a diciectric 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 (1-5), (i-7) to (i-10), (i-12) and (i-14).

公开(公告)号：US20240287312A1

公开(公告)日：2024-08-29

申请号：US18636316

申请日：2024-04-16

Applicant: AGC Inc.

Inventor： Shoko SUZUKI ,  Kazuhiko SHIONO ,  Sayuri YAMADA ,  Hiroki HOTAKA

IPC: C09B67/20 ,  C09B23/16 ,  G02B5/20 ,  H04N25/11

CPC classification number: C09B67/0063 ,  C09B23/166 ,  G02B5/208 ,  H04N25/11

Abstract: An optical filter, including a first absorption layer containing a near-infrared absorbing dye and a transparent resin. The optical filter also includes a reflection layer. The first absorption layer has a thickness of 0.3 μm to 10 μm. The optical filter satisfies conditions described in the disclosure. An imaging apparatus including the optical filter.

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：US20180356576A1

公开(公告)日：2018-12-13

申请号：US16106485

申请日：2018-08-21

Applicant: AGC INC.

Inventor： Kazuhiko SHIONO ,  Hiroyuki ARISHIMA ,  Teppei KONISHI ,  Hiroki HOTAKA

IPC: G02B5/28 ,  C09B57/00 ,  C09B67/22 ,  G02B1/04 ,  G02B5/20 ,  C08K5/3417 ,  G02B5/22

CPC classification number: G02B5/282 ,  C08K5/3417 ,  C09B57/007 ,  C09B67/0034 ,  G02B1/04 ,  G02B5/208 ,  G02B5/223 ,  C08L2666/70

Abstract: There is provided a near-infrared cut filter which has a visible light transmitting property and a near-infrared shielding property both at high levels by that its transmission spectrum has a steep inclination in the vicinity of the boundary between the visible light and the near-infrared, and which can also be sufficiently reduced in size and thickness. The near-infrared cut filter has a near-infrared absorbing layer which contains a near-infrared absorbing dye containing at least one dye in which a condensed ring structure containing at least a benzene ring and a ring having nitrogen atom is bonded to both sides of a squarylium skeleton and which have a carboxylic acid amide structure at a second position of the benzene ring (where the carboxylic acid has a substituent having 5 to 25 having one or more branches), and a transparent resin with a refractive index of 1.45 or more.

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

IPC: C09B57/00 ,  C09B23/08 ,  C09B23/10 ,  G02B5/20 ,  G02B5/22 ,  G02B5/26

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