Optical glass and optical components

Abstract

This invention provides an optical glass that achieves stable glass while maintaining the glass's solubility to the target parameters, thereby reducing costs. An optical glass is provided, wherein the glass composition of the aforementioned optical glass comprises 10-50% SiO2, 3-30% ZrO2, 0-7.5% Nb2O5, 5-50% TiO2, greater than 0% and less than 50% CaO, greater than 0% and less than 50% B2O3, 0-25% La2O3, 0-6% Li2O, 0-30% Y2O3, (ZrO2+TiO2) / (SiO2+B2O3)=0.40-1.12, (Li2O+Na2O+K2O) / CaO=0-0.38, (La2O3+Gd2O3+Y2O3) / (ZrO2+TiO2)=0-0.97, and SiO2 / (SiO2+B2O3)=0.41-1.00.