Glass-ceramic article
AssigneeEurokera S.N.C.
InventorsEmmanuel Lecomte, Erwann Luais, Jean-Luc Dabouineau
Life of this patent
Estimating the term…
Abstract
A glass-ceramic article includes at least one substrate, such as a plate, made of glass-ceramic, the substrate having a face including a microtexturing such that the arithmetic mean surface roughness Ra, measured according to standard ISO 4287, is between 0.14 and 0.40 μm, and the total roughness, Rt, measured according to standard ISO 4287, is between 1.15 and 5.00 μm.
Claims17
A glass-ceramic article, comprising at least one substrate made of glass-ceramic, said substrate having a face with a micro-texturing such that an arithmetic mean surface roughness, Ra, measured according to standard ISO 4287, is between 0.14 and 0.40 μm and wherein a total roughness Rt, measured according to ISO 4287, is between 1.15 and 5.00 μm and wherein said substrate is a 3 to 6 mm transparent black glass-ceramic, having a light transmission TL under illuminant D65 of less than 20%, and an optical transmission of less than 30% for a wavelength of 625 nm.
Dependencies are inferred from the claim text.