Mother glass composition for gradient-index lens, gradient-index lens, manufacturing method thereof, optical product, and optical device
    3.
    发明授权
    Mother glass composition for gradient-index lens, gradient-index lens, manufacturing method thereof, optical product, and optical device 有权
    用于梯度折射率透镜,梯度折射率透镜,其制造方法,光学产品和光学装置的母玻璃组合物

    公开(公告)号:US07858546B2

    公开(公告)日:2010-12-28

    申请号:US12070157

    申请日:2008-02-15

    摘要: The present invention provides a mother glass composition for gradient-index lens, from which a lead-free Li-based gradient-index lens that is excellent in weather resistance, in particular weather resistance in the presence of water, can be manufactured. The mother glass composition includes the following components, indicated by mol %: 40≦SiO2≦65; 1≦TiO2≦10; 0.1≦MgO≦22; 0.15≦ZnO≦15; 2≦Li2O≦18; 2≦Na2O≦20; 0≦B2O3≦20; 0≦Al2O3≦10; 0≦K2O≦3; 0≦Cs2≦O≦3; 0≦Y2O3≦5; 0≦ZrO2≦2; 0≦Nb2O5≦5; 0≦In2O3≦5; 0≦La2O3≦5; and 0≦Ta2O5≦5. The mother glass composition further includes at least two oxides selected from CaO, SrO, and BaO each in a range of 0.1 mol % to 15 mol %. The total of MgO+ZnO is greater than or equal to 2 mol %. The molar ratio of ZnO/(MgO+ZnO) is in a range of 0.07 to 0.93. The total of Li2O+Na2O is in a range of 6 mol % to 38 mol %. The total of Y2O3+ZrO2+Nb2O5+In2O3+La2O3+Ta2O5 is in a range of 0 mol % to 11 mol %.

    摘要翻译: 本发明提供了一种用于梯度折射率透镜的母玻璃组合物,可以制造耐候性优异的无铅Li基梯度折射率透镜,特别是在水的存在下的耐候性。 母玻璃组合物包含以摩尔%表示的以下组分:40< NlE; SiO 2和nEE; 65; 1≦̸ TiO2≦̸ 10; 0.1≦̸ MgO≦̸ 22; 0.15≦̸ ZnO≦̸ 15; 2≦̸ Li2O≦̸ 18; 2≦̸ Na 2 O≦̸ 20; 0≦̸ B2O3≦̸ 20; 0≦̸ Al2O3≦̸ 10; 0≦̸ K2O≦̸ 3; 0≦̸ Cs2≦̸ O≦̸ 3; 0≦̸ Y2O3≦̸ 5; 0≦̸ ZrO2≦̸ 2; 0≦̸ Nb2O5≦̸ 5; 0≦̸ In2O3≦̸ 5; 0≦̸ La2O3≦̸ 5; 和0≦̸ Ta2O5≦̸ 5。 母玻璃组合物还包含选自CaO,SrO和BaO中的至少两种氧化物,其分别为0.1mol%至15mol%的范围。 MgO + ZnO的总和大于或等于2摩尔%。 ZnO /(MgO + ZnO)的摩尔比在0.07〜0.93的范围内。 Li2O + Na2O的总量为6mol%〜38mol%。 Y2O3 + ZrO2 + Nb2O5 + In2O3 + La2O3 + Ta2O5的合计为0mol%〜11mol%。