从对正三棱锥和其它偏振元件的分析出发，对板条固体激光器用两类新型棱镜腔，即共轴复式全内反射棱镜－半反／全反阴阳镜腔和复式全内反射校镜－正三棱锥－阴阳镜折迭腔的偏振特性作了详细的理论和实验研究． Based on the analysis of alignment triangular pyramid and other polarization components, two types of new prismatic cavities for lath solid-state lasers, ie, coaxial total internal reflection prism - semi-anti / total anti-yang mirror and double total internal reflection Pyramid - the polarization characteristics of the folding mirror yin and yang made a detailed theoretical and experimental study.