Patent ID: 11958769
Assignee: CDGM GLASS CO., LTD
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The optical glass according to claim 1, in terms of oxide mass percentages, the optical glass consists of B2O3: 5-25%, SiO2: 0.5-15%, ZrO2: 1-15%, ZnO: 0-15%, BaO: 0-10%, CaO: 0-10%, SrO: 0-10%, MgO: 0-10%, the sum of TiO2, Nb2O5 and WO3 is 1-20%, the sum of Li2O, Na2O and K2O is 0-1%, Sb2O3:0-1%, and the sum of La2O3, Gd2O3, Y2O3 and Yb2O3 is 50-75%.