摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of producing glass for stably supplying high quality fluorophosphate glass. <P>SOLUTION: In the method of producing the fluorophosphate glass by introducing a glass raw material containing an unvitrified raw material into a melting vessel and melting the glass raw material, the unvirified glass raw material contains at least fluorine, oxygen and phosphorus, the glass raw material is melted while the molar ratio O/P of oxygen atom O to the phosphorus atom P in the unvirified glass raw material is set to be≥3.5, then clarified and homogenized. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |