iceland crystal meaning in Chinese

冰洲石

Combination of iceland crystal and glass for e beam superhigh transmittance polarizing prism
冰洲石-玻璃组合e光超高透偏光棱镜
Geologic characteristics of iceland crystal deposits and possible mining and dressing
黔西南某冰洲石矿床地质特征及矿石的采选方法
The normal polarizing device is made of iceland crystal that is based on birefringence of crystal . its merit is high extinction ratio , high transmission and wide wavelength
一般的起偏器件和检偏器件是利用晶体的双折射特性设计而成，其优点是：消光比和透射比高，适用的光谱范围大。
But the normal iceland crystal is a nature crystal and transparent . it is not easy to find pure and big iceland crystal , so it is difficult to make large - size polarizing device . at the same time , the process is complex and with high price
但由于通常使用的冰洲石晶体是一种天然晶体，纯净的晶体很少，且不易得到大块，所以晶体起偏镜不容易做成大口径，且价格高，加工工艺复杂。