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:
Apr. 24, 2018
Filed:
Dec. 09, 2014
Agc Glass Europe, Louvain-la-Neuve, BE;
Asahi Glass CO Ltd, Chiyoda Ku, JP;
Audrey Dogimont, Sart-Dames-Avelines, BE;
Thomas Lambricht, Perwez, BE;
AGC GLASS EUROPE, Louvain-la-Neuve, BE;
ASAHI GLASS CO LTD, Chiyoda Ku, JP;
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: SiO55-85%; AlO0-30%; BO0-20%; NaO 0-25%; CaO 0-20%; MgO 0-15%; KO 0-20%; BaO 0-20%; Total iron (expressed in the form of FeO) 0.002-0.06%, a chromium content (expressed in the form of CrO) 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.