Is mainly used as additive for special optical glass and fibre glass slice with high index of refraction for electronic microscope and energy-saving light.
主要用作特种光学玻璃和光学纤维，高折射电镜片和节能电光源的添加剂。
2
Two methods of measurement of the refractive index profile in optical fibers: interference microscope method and near field method are evaluated.
对两种测量光纤折射半剖面的方法：干涉显微镜法和近区场法，进行了评价。
3
The refractive index was obtained through measuring the focal position of a capillary filled with the liquid by a reading microscope, and doing a calculation with an analytic formula.