Invention Grant
- Patent Title: Ultraviolet transmitting glass
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Application No.: US15803907Application Date: 2017-11-06
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Publication No.: US10689288B2Publication Date: 2020-06-23
- Inventor: Takahiro Sakagami , Makoto Shiratori
- Applicant: AGC Inc.
- Applicant Address: JP Tokyo
- Assignee: AGC Inc.
- Current Assignee: AGC Inc.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@67995807 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4a479acb com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@59e2a536
- Main IPC: C03C3/093
- IPC: C03C3/093 ; C03C4/00 ; C03C3/089 ; C03C3/091 ; C03C3/097 ; G02F1/01

Abstract:
An ultraviolet transmitting glass containing, in mole percentage based on oxides, 55 to 80% of SiO2, 12 to 27% of B2O3, 4 to 20% of R2O (where R represents an alkali metal selected from a group consisting of Li, Na, and K) in total, 0 to 3.5% of Al2O3, 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 ZrO2, 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.
Public/Granted literature
- US10647607B2 Ultraviolet transmitting glass Public/Granted day:2020-05-12
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