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1.发明授权Amorphous,non-devitrious fluorophosphate optical glass,free of yellow coloring and process for producing the same 失效不规则的，非凡的氟磷酸盐光学玻璃，不含黄色颜料及其生产方法
公开(公告)号：US3743492A
公开(公告)日：1973-07-03
申请号：US3743492D
申请日：1971-08-31
Applicant: HOYA GLASS WORKS LTD
Inventor： OGITA N
CPC classification number: C03C3/247 , C03B5/06 , C03B5/08 , C03B5/16 , C03B5/1875 , C03B2201/70 , Y10S501/90
Abstract: RAW MATERIALS FOR A FLUOROPHOSPHATE OPTICAL GLASS ARE MELTED IN A NON-OXIDIZING ATMOSPHERE, AND IN PARTICULAR, IN A NITROGEN GAS ATOOSPHERE OR IN A COVERED MELTING VESSEL.
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