Provided is optical glass containing, in terms of mol % of cations: 10 to 60% of a La.sup.3+ component; more than 0% and up to 75% of a Ga.sup.3+ component; and 5 to 75% of a Nb.sup.5+ component, in which a total amount of the La.sup.3+ component, Ga.sup.3+ component, and Nb.sup.5+ component is 60 to 100%.

Provided is optical glass containing, in terms of mol % of cations: 10 to 60% of a La.sup.3+ component; more than 0% and up to 75% of a Ga.sup.3+ component; and 5 to 75% of a Nb.sup.5+ component, in which a total amount of the La.sup.3+ component, Ga.sup.3+ component, and Nb.sup.5+ component is 60 to 100%.

A glass is provided as follows. A content rate of TeO.sub.2 is from 50% to 90% by mass. At least two components selected from Bi.sub.2O.sub.3, B.sub.2O.sub.3, GeO.sub.2, Al.sub.2O.sub.3, Ga.sub.2O.sub.3, BaO, ZnO, Li.sub.2O, La.sub.2O.sub.3, and WO.sub.3 are included. At least one component selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S is included in an amount more than 0 mg/kg and up to 1500 mg/kg.

A glass is provided as follows. A content rate of TeO.sub.2 is from 50% to 90% by mass. At least two components selected from Bi.sub.2O.sub.3, B.sub.2O.sub.3, GeO.sub.2, Al.sub.2O.sub.3, Ga.sub.2O.sub.3, BaO, ZnO, Li.sub.2O, La.sub.2O.sub.3, and WO.sub.3 are included. At least one component selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Hf, Ta, W, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Rb, Cs, Ba, Ga, Ge, In, Sn, Sb, Pb, Bi, Au, Pt, Ag, Ir, Pd, Rh, Ru, Re, F, Cl, Br, I, and S is included in an amount more than 0 mg/kg and up to 1500 mg/kg.

Provided is a thermally stable and inexpensive infrared-transmitting glass. An infrared-transmitting glass contains, in terms of % by mole, over 0 to 9% Ge, over 0 to 50% Ga, 50 to 90% Te, 0 to 40% Si+Al+Ti+Cu+In+Sn+Bi+Cr+Sb+Zn+Mn+Cs+Ag+As+Pb, and 0 to 40% F+Cl+Br+I.

Provided is a thermally stable and inexpensive infrared-transmitting glass. An infrared-transmitting glass contains, in terms of % by mole, over 0 to 9% Ge, over 0 to 50% Ga, 50 to 90% Te, 0 to 40% Si+Al+Ti+Cu+In+Sn+Bi+Cr+Sb+Zn+Mn+Cs+Ag+As+Pb, and 0 to 40% F+Cl+Br+I.

The present disclosure provides optical glass, a method for preparing same and use thereof. The method includes the steps of: (1) weighing raw materials, and mixing them uniformly, the optical glass includes, in terms of the mass percentage of oxides: 40-50% La.sub.2O.sub.3, 15-25% Nb.sub.2O.sub.5, 10-20% Gd.sub.2O.sub.3, 5-10% GeO.sub.2, 5-10% B.sub.2O.sub.3, 1-6% TiO.sub.2, and 0.1-1% K.sub.2O; and (2) melting a mixed batch to obtain molten glass, and then introducing a gas into the molten glass for atmosphere bubbling, wherein the gas includes an inert gas and a reducing gas; the inert gas has a specific gravity greater than that of air at the same temperature and gas pressure; and the reducing gas makes the molten glass have a redox index of 120 to 5; after stopping the bubbling, homogenizing the molten glass to be clarified with stirring. The technical problem to be solved is how to provide a method for preparing optical glass that allows the obtained optical glass to have not only a high refractive index but also a high light transmittance in a visible light region, thereby facilitating promotion and use.

The present disclosure provides optical glass, a method for preparing same and use thereof. The method includes the steps of: (1) weighing raw materials, and mixing them uniformly, the optical glass includes, in terms of the mass percentage of oxides: 40-50% La.sub.2O.sub.3, 15-25% Nb.sub.2O.sub.5, 10-20% Gd.sub.2O.sub.3, 5-10% GeO.sub.2, 5-10% B.sub.2O.sub.3, 1-6% TiO.sub.2, and 0.1-1% K.sub.2O; and (2) melting a mixed batch to obtain molten glass, and then introducing a gas into the molten glass for atmosphere bubbling, wherein the gas includes an inert gas and a reducing gas; the inert gas has a specific gravity greater than that of air at the same temperature and gas pressure; and the reducing gas makes the molten glass have a redox index of 120 to 5; after stopping the bubbling, homogenizing the molten glass to be clarified with stirring. The technical problem to be solved is how to provide a method for preparing optical glass that allows the obtained optical glass to have not only a high refractive index but also a high light transmittance in a visible light region, thereby facilitating promotion and use.

Solid lithium-ion ceramic electrolyte membranes have an average thickness of less than 200 micrometers. A constituent electrolyte material has an average grain size of less than 10 micrometers. The solid lithium-ion ceramic electrolyte is free-standing. Alternatively, solid lithium-ion electrolyte membranes have a composition represented by Li.sub.1+xyM.sub.xM.sub.2xyM.sub.y(PO.sub.4).sub.3, where M is a 3.sup.+ ion, M is a 4.sup.+ ion, M is a 5.sup.+ ion, 0x2 and 0y2.

Solid lithium-ion ceramic electrolyte membranes have an average thickness of less than 200 micrometers. A constituent electrolyte material has an average grain size of less than 10 micrometers. The solid lithium-ion ceramic electrolyte is free-standing. Alternatively, solid lithium-ion electrolyte membranes have a composition represented by Li.sub.1+xyM.sub.xM.sub.2xyM.sub.y(PO.sub.4).sub.3, where M is a 3.sup.+ ion, M is a 4.sup.+ ion, M is a 5.sup.+ ion, 0x2 and 0y2.