公开(公告)号：US12181697B2

公开(公告)日：2024-12-31

申请号：US18396795

申请日：2023-12-27

Applicant: AGC Inc.

Inventor： Kazuhiko Shiono ,  Takashi Nagata

IPC: G02B5/22 ,  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：US12147065B2

公开(公告)日：2024-11-19

申请号：US18397360

申请日：2023-12-27

Applicant: AGC Inc.

Inventor： Kazuhiko Shiono ,  Takeru Wakabayashi ,  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-5), (i-7) to (i-10), (i-12) and (i-14).

公开(公告)号：US10927038B2

公开(公告)日：2021-02-23

申请号：US16168975

申请日：2018-10-24

Applicant: AGC Inc.

Inventor： Takashi Nagata ,  Hirofumi Yamamoto

IPC: C03C17/34 ,  G02B1/115 ,  G02B5/20

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.