A dichroic beam splitting film of cubic prism with high refiection for 1.
9μm）立方棱镜二向色分光膜、其技术关键是最大限度地减小光偏振带来的损失。
The realization of interference of two beams through a reflector and a cubic prism is introduced.
介绍了用反射镜和立方棱镜实现两束光相干涉的光
