Production manner of glass, optical glass, glass material for press molding, optical component those production manners

摘要

Melting and clarifying the glass raw materials in the production manner of the glass which produces the glass compact where it makes melting glass, the said melting glass forms, consists of optical glass, Cation % in display,B 12 - 65%,Si 0 - 20%,Ge 0 - 6%,La, Gd, Y, Yb, Sc and Lu at total 15 - 50%,Ta, Zr, Ti, Nb, W and Bi at total 4 - 54%,Zn 0 - 35%,Li, Na and K at total 0 - 9%,Mg, Ca, Sr and Ba at total 0 - 15%,It includes, in order to be able to obtain the oxide glass where conjunction measurable variable of the aforementioned all the cation components becomes 99 - 100%, production manner of the glass which features that thing, and the aforementioned glass raw materials which compound the glass raw materials include carbonate and the sulfate