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：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：US20220003896A1

公开(公告)日：2022-01-06

申请号：US17448415

申请日：2021-09-22

Applicant: AGC Inc.

Inventor： Takashi NAGATA ,  Takahiro SAKAGAMI

IPC: G02B1/115 ,  G02B5/28

Abstract: An optical filter includes a glass substrate in which an average-optical-transmittance in a specific-visible-region defined as a wavelength range of 430 nm to 650 nm is 80% or more and an average-optical-transmittance in a specific-infrared-region defined as a wavelength range of 900 nm to 1,000 nm is 25% to 85%, a first-optical-multilayer film in which an average-optical-transmittance in the specific-visible-region is 80% or more and an average-optical-transmittance in the specific-infrared-region is in a range of 45% to 65%, the first-optical-multilayer film having, between the specific-visible region and the specific-infrared-region, a first-blocking-band that blocks light, and a second-optical-multilayer-film in which an average-optical-transmittance in the specific-visible-region is 80% or more and an average-optical-transmittance in the specific-infrared-region is in a range of 45% to 65%, the second-optical-multilayer film having, on a side of wavelengths longer than those in the specific-infrared-region, a second-blocking-band that blocks light.

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).