Light-flint optical glass

Light-flint optical glass

  • CN 104,445,928 A
  • Filed: 11/11/2014
  • Published: 03/25/2015
  • Est. Priority Date: 11/11/2014
  • Status: Active Application
First Claim
Patent Images

1. a light flint, is characterized in that:

  • it comprises the following component in compound;

    SiO 2

    41.7~

    49.5%



    B 2O 3

    2.3~

    10.5%



    K 2O:

    11.0~

    19.0%



    Na 2O:

    0~

    7.0%



    TiO 2

    9.0~

    12.5%



    ZnO:

    0.5~

    1.5%



    Al 2O 3

    3.5~

    10%



    K 2SiF 6

    9.5~

    12.0%



    Sb 2O 3

    0~

    0.07%



    Wherein, ∑

    SiO 2+ B 2o 3;

    48.0 ~ 57.0%;



    Na 2o+K 2o;

    17.0 ~ 19.5%;

    Above-mentioned per-cent is all weight percentage;

    Not containing Li in the component of described opticglass 2o, P 2o 5, Nb 2o 5, WO 3, La 2o 3, Gd 2o 3, Y 2o 3or Ta 2o 5.

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