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对光衍射技术提出了一种新方法 ,即在衍射缝后引入反射形成镜像 ,用以改变衍射条纹的光强分布 ,这种方法可提高测量精度 ,加大动态范围 ,改善因缝不理想所形成的场分布。还对参数的选取进行了讨论
A new method of light diffraction is proposed, which is to introduce reflection into the mirror image after the diffraction slit to change the light intensity distribution of the diffraction fringe. This method can improve the measurement accuracy, increase the dynamic range, The formation of the field distribution. The selection of parameters is also discussed