The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2021
Filed:
Oct. 24, 2018
Agc Inc., Chiyoda-ku, JP;
Takashi Nagata, Haibara-gun, JP;
Hirofumi Yamamoto, Haibara-gun, JP;
AGC Inc., Chiyoda-ku, JP;
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 T−T, where Tis 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 Tis 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.