GLASS PLATE FOR TEMPERING, TEMPERED GLASS PLATE, AND METHOD FOR MANUFACTURING TEMPERED GLASS PLATE

摘要

glass plate over the plate area for metal-0.01 of the invention, the plate thickness is 1.5 mm or less for strengthening a glass plate, the maximum value of the retardation was measured within the effective retardation interval in 50 characterized in that not more than 5.0 nm. ;