透射反射扫描法的研究发现，其灵敏度达到了相衬显微镜的灵敏度，可实现在线检测。
Transmission and reflection method reaches the sensitivity of phase contrast microscope observation method and it can be used in on-line detection.
本文首先详细分析了微分干涉相衬显微镜的光学系统原理，然后对显微镜光机结构做了简要分析。
In this dissertation, the keystone of Differential Interference Contrast Microscope is analyzed, and the optics and machine frame of Microscope is illuminated briefly.
微分干涉相衬显微镜具有纳米级的相位分辨率，可以看到一般光学显微镜难以观察到的微细结构。
Being of the phase resolution power of nm level, the DIC microscopy can discern the microcosmic structure which cannot be observed by the ordinary microscopy.
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