Optical glass

Optical glass

  • CN 106,467,359 A
  • Filed: 08/14/2015
  • Published: 03/01/2017
  • Est. Priority Date: 08/14/2015
  • Status: Active Application
First Claim
Patent Images

1. optical glass is it is characterised in that its percentage by weight composition includes:

  • B2O3

    1-30%;

    SiO2

    0-20%;

    La2O3

    25-55%;

    Gd2O3

    5-40%;

    Y2O3

    0-25%;

    Yb2O3

    0-10%;

    Ta2O5

    0-10%;

    Nb2O5

    1-30%;

    TiO2

    0-10%;

    TiO2/Nb2O5Below 0.3;

    ZrO2

    0.5-20%;

    WO3

    0-10%;

    ZnO:

    0-15%;

    (ZnO+Y2O3)/La2O3Scope below 0.5;

    R2O:

    0-10%, wherein, R2OFor Li2O、

    Na2O or K2One or more of O;

    RO:

    0-10%, wherein, RO is BaO, SrO, MgOOne or more of or CaO;

    Al2O3

    0-10%;

    GeO2

    0-10%;

    Bi2O3

    0-10%;

    Described glassWithout PbO;

    Glass refraction scope more than 1.85, Abbe number scope is 35-45.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×