SHEET-LIKE GLASS ARTICLE, METHOD FOR PRODUCING SAME, AND USE THEREOF

A chemically toughenable or toughened sheet-like glass article is provided. The article has a glass with a composition comprising Al2O3, SiO2, Li2O, and Na2O, wherein (Al2O3)−(Li2O+Na2O), in mol %, is less than 0; a thickness between 0.3 mm and 4 mm; a light transmittance of at least 0.001% to at most 60% at 450 nm, of at least 0.001% to at most 30% at 540 nm, and of at least 0.001% to at most 30% at 630 nm; and an IR transmittance of at least 10% to not more than 99% at any wavelength in a wavelength range from 900 nm to 1100 nm. The light and IR transmittances are determined for a thickness of the article of 1 mm.