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:
Jun. 23, 2020
Filed:
Nov. 06, 2017
Agc Inc., Chiyoda-ku, Tokyo, JP;
Takahiro Sakagami, Haibara-gun, JP;
Makoto Shiratori, Haibara-gun, JP;
AGC Inc., Tokyo, JP;
Abstract
An ultraviolet transmitting glass containing, in mole percentage based on oxides, 55 to 80% of SiO, 12 to 27% of BO, 4 to 20% of RO (where R represents an alkali metal selected from a group consisting of Li, Na, and K) in total, 0 to 3.5% of AlO, 0 to 5% of R'O (where R′ represents an alkaline earth metal selected from a group consisting of Mg, Ca, Sr, and Ba) in total, 0 to 5% of ZnO, and 0 to 10% of ZrO, wherein transmittance at a wavelength of 254 nm in terms of spectral transmittance at a plate thickness of 0.5 mm is 70% or more. The glass with high ultraviolet light transmittance, in particular, high deep ultraviolet light transmittance is provided.