发明名称 FLUOROPHOSPHATE GLASS, GLASS BASE MATERIAL FOR PRESS FORMING, OPTICAL ELEMENT BLANK, OPTICAL ELEMENT AND METHOD OF PRODUCING THEM
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>
申请公布号 JP2010059021(A) 申请公布日期 2010.03.18
申请号 JP20080227618 申请日期 2008.09.04
申请人 HOYA CORP 发明人 IKENISHI MIKIO
分类号 C03B1/00;C03B5/225;C03C3/247 主分类号 C03B1/00
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