Glass composition and optical member and optical instrument using the same

Glass composition and optical member and optical instrument using the same

  • CN 101,646,630 B
  • Filed: 06/20/2008
  • Issued: 06/18/2014
  • Est. Priority Date: 06/27/2007
  • Status: Active Grant
First Claim
Patent Images

1. a glass component, does not contain PbO, and meets the condition shown in following (A)~

  • (L);

    (A) TeO 2contain ratio the scope of 55.4~

    95 % by mole, (B) B 2o 3contain ratio the scope of 1~

    33 % by mole, (C) ZnO contain ratio the scope of 1~

    37 % by mole,(D) Bi 2o 3contain ratio the scope of 1~

    18 % by mole, (E) P 2o 5contain ratio be 0 % by mole, (F) R 2o contain ratio the scope of 0~

    13 % by mole, (G) MO contain ratio the scope of 0~

    13 % by mole,(H) TiO 2contain ratio the scope of 0~

    13 % by mole, (I) Nb 2o 5contain ratio the scope of 0~

    10 % by mole, (J) Ta 2o 5contain ratio the scope of 0~

    13 % by mole, (K) L 2o 3contain ratio the scope of 0~

    11 % by mole, (L) should (E)~

    P shown in (K) 2o 5, R 2o, MO, TiO 2, Nb 2o 5, Ta 2o 5and L 2o 3total amount contain ratio the scope of 0~

    15 % by mole, This R represents to be selected from least a kind of element in Li, Na and K,This M represents to be selected from least a kind of element in Mg, Ca, Sr and Ba,This L represents to be selected from least a kind of element in yttrium and lanthanon.

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