概括介绍了各种四分之一波片的基本原理。
Fundamentals of various quarter wave plates are presented firstly in this paper.
在透射模式中，不需要消色差的四分之一波片。
For the transmissive mode, no achromatic quarter-wave film is needed.
可将四分之一波片卸去，并按平面偏振光法或内插法来决定其主应力方向。
The directions can be obtained by removing the quarter-wave plate and following the procedure for plane polarized light or by interpolation.
该结构用直角棱镜代替了普通的四分之一波片，提高了光学电压互感器的稳定性。
The structure substituted rectangular prism for common quarter wave, and improved the stability of the optical voltage transformer.
此方法对光源的单色性要求低，新需器材及实验方法简便，并且适于各种波长的四分之一波片。
Its request for monochromaticity of source is low. The equipments and procedure of this method are simple, but suitable for quarter-wave plates of various wave lengths.
此方法对光源的单色性要求低，新需器材及实验方法简便，并且适于各种波长的四分之一波片。
Its request for monochromaticity of source is low. The equipments and procedure of this method are simple, but suitable for quarter-wave plates of various wave lengths.
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