Invention Grant
- Patent Title: Glass sheet having high transmission of infrared radiation
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Application No.: US15103678Application Date: 2014-12-09
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Publication No.: US09950946B2Publication Date: 2018-04-24
- Inventor: Audrey Dogimont , Thomas Lambricht
- Applicant: AGC GLASS EUROPE , ASAHI GLASS CO LTD
- Applicant Address: BE Louvain-la-Neuve JP Chiyoda Ku
- Assignee: AGC GLASS EUROPE,ASAHI GLASS CO LTD
- Current Assignee: AGC GLASS EUROPE,ASAHI GLASS CO LTD
- Current Assignee Address: BE Louvain-la-Neuve JP Chiyoda Ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP13198454 20131219
- International Application: PCT/EP2014/077046 WO 20141209
- International Announcement: WO2015/091106 WO 20150625
- Main IPC: C03C3/087
- IPC: C03C3/087 ; C03C4/10

Abstract:
The invention relates to a glass sheet having high transmission of infrared (IR) radiation. More specifically, the invention relates to a glass sheet having a composition which comprises, in a content expressed as percentages by total weight of glass: SiO2 55-85%; Al2O3 0-30%; B2O3 0-20%; Na2O 0-25%; CaO 0-20%; MgO 0-15%; K2O 0-20%; BaO 0-20%; Total iron (expressed in the form of Fe2O3) 0.002-0.06%, a chromium content (expressed in the form of Cr2O3) ranging from 0.0015% to 1% and a cobalt content (expressed in the form of Co) ranging from 0.0001% to 1%. By virtue of its high transmission of IR radiation, the glass sheet according to the invention can advantageously be used in a device using a technology requiring very good transmission of IR radiation, whether through the main faces or starting from their sheared edge (for example, a screen or panel or pad, the glass sheet defining a touch surface). The invention thus also relates to the use of such a glass sheet in a device using infrared radiation propagating essentially inside said sheet.
Public/Granted literature
- US20160304389A1 GLASS SHEET HAVING HIGH TRANSMISSION OF INFRARED RADIATION Public/Granted day:2016-10-20
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