PROCÉDÉ DE FABRICATION DE SUBSTRAT EN VERRE EN FORME DE DISQUE, PROCÉDÉ DE FABRICATION DE SUBSTRAT EN VERRE EN FEUILLE, PROCÉDÉ DE FABRICATION DE PLAQUE GUIDE DE LUMIÈRE ET SUBSTRAT EN VERRE EN FORME DE DISQUE

摘要

A method for manufacturing a disk-shaped glass substrate is a method for manufacturing a disk-shaped glass substrate for cutting out one or more thin glass substrates. The method for manufacturing a disk-shaped glass substrate includes preparing a disk-shaped glass blank, which is a glass blank having two circular main surfaces (step S1), chamfering an outer edge portion of each of the two main surfaces of the disk-shaped glass blank (step S2), grinding the two main surfaces of the chamfered disk-shaped glass blank, using a double-side grinding apparatus (step S3), and polishing the two main surfaces of the ground disk-shaped glass blank, using a double-side polishing apparatus (step S4).