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南京水利科学研究所委托我们镀制激光测速发射头——b328A°棱镜分光膜,其工作特点是把6328A°激光束分裂成方向相反且相互平行的光束（图1）要求光束强度基本接近工作状态是45°（入射角）镜材料为Kg光学玻璃（n=1.52）。
Nanjing Institute of Water Conservancy commissioned our plating laser tachometer head - b328A ° prism film, its work is characterized by the 6328A ° laser beam split into opposite directions and parallel to the beam (Figure 1) requires the beam intensity is close to the working state 45 ° (angle of incidence) Mirror material is Kg optical glass (n = 1.52).