Fiber optic core glass
    2.
    发明授权
    Fiber optic core glass 失效
    光纤核心玻璃

    公开(公告)号:US3650780A

    公开(公告)日:1972-03-21

    申请号:US3650780D

    申请日:1969-05-01

    Inventor: CONNELLY JOHN H

    CPC classification number: C03C13/048 C03C3/155 Y10S501/901

    Abstract: The present invention relates to glass compositions which are eminently suitable for use as core glasses in fiber optic elements. More specifically, the instant invention is concerned with essentially thoria-free glasses in the La2O3-B2O3-Ta2O5Nb2O5 composition field exhibiting an index of refraction (nD) higher than about 1.80 and a coefficient of thermal expansion (0*-300* C.) of between about 60-70 X 10 7/*C.

    Abstract translation: 本发明涉及非常适合用作光纤元件中的核心玻璃的玻璃组合物。 更具体地说,本发明涉及La2O3-B2O3-Ta2O5-Nb2O5组成领域中基本上不含氧化物的玻璃,其显示出高于约1.80的折射率(nD)和热膨胀系数(0-300℃) )为约60-70×10 -7 /℃

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