| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical glass molding, capable of obtaining an optical glass molding extremely low in poor burning and devitrification and contributing even to extension of the lifetime of a thermal resistance softening plate and the reduction of consumption energy (electric power, etc.) in a softening furnace.SOLUTION: The method for manufacturing an optical glass molding comprises softening a glass gob and press-molding the glass gob. The glass gob is softened in a state placed on a thermal resistance softening plate including metal having a melting point of 1300°C or more.SELECTED DRAWING: None |
