简述了日立180系列塞曼原子吸收仪的洛匈棱镜的结构、起偏原理、偏振特性，以及常见故障。
In this paper, structure, polarizing principle and characteristics of the Rochon prism used in HITACHI 180_Series Zeeman atomic absorption spectrophotometers are described.
偏振分光棱镜是由一对高精度棱镜胶合在一起，其中一个棱镜的斜边是在PBS介质镀膜。
The polarization splitting prism is composed of a pair of high precision prisms glued together, wherein a prism hypotenuse is plated on the PBS medium film.
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