Invention Grant
- Patent Title: Ultraviolet-absorbent glass
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Application No.: US16033646Application Date: 2018-07-12
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Publication No.: US10577276B2Publication Date: 2020-03-03
- Inventor: Shuichi Akada , Soshi Watanabe
- Applicant: AGC INC.
- Applicant Address: JP Chiyoda-ku
- Assignee: AGC INC.
- Current Assignee: AGC INC.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2016-008693 20160120; JP2016-088822 20160427
- Main IPC: C03C3/087
- IPC: C03C3/087 ; C03C4/08 ; C03C3/078

Abstract:
The purpose of the present invention is to provide an ultraviolet-absorbent glass that is suitable as a dark gray glass, that has a very low ultraviolet transmittance (TUV), and that has excellent color rendering properties for green. The present invention relates to an ultraviolet-absorbent glass in which: the ultraviolet transmittance (TUV) as defined in ISO 9050:2003 is 2% or less for a thickness of 2.8 mm; the visible light transmittance (TVA) based on a standard A light source is 10% to 30% inclusive for a thickness of 2.8 mm; the energy transmittance (TE) as defined in JIS R 3106:1998 is 30% or less for a thickness of 2.8 mm; a ratio R14/R9 for color rendering indices as defined in ISO 9050:1990 and JIS Z 8726:1990 is 1.8 or greater; and a ratio R14/R1 is 1.05 or greater.
Public/Granted literature
- US20180319699A1 ULTRAVIOLET-ABSORBENT GLASS Public/Granted day:2018-11-08
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