Optical glass
    14.
    发明授权
    Optical glass 失效
    光学玻璃

    公开(公告)号:US4120732A

    公开(公告)日:1978-10-17

    申请号:US860024

    申请日:1977-12-12

    摘要: An optical glass consisting essentially of a B.sub.2 O.sub.3 --La.sub.2 O.sub.3 --Gd.sub.2 O.sub.3 --WO.sub.3 --ZrO.sub.2 and/or Ta.sub.2 O.sub.5 system has high refractive and low dispersive characteristics with optical constants of 1.85-1.96 for Nd and 43-28 for .nu.d, is free of poisonous ThO.sub.2, CdO and BeO ingredients, and suitable for mass production.

    摘要翻译: 基本上由B2O3-La2O3-Gd2O3-WO3-ZrO2和/或Ta2O5体系组成的光学玻璃具有高折射和低色散特性,其Nd的光学常数为1.85-1.96,对于nu d为43-28,光学常数不含有毒的ThO2 ,CdO和BeO成分,适合批量生产。