本文从激光和光学工程角度讨论了动态测量装置中光学设计的几个问题，给出一个实用的设计方案。
In this paper, the several problems of optical design for a dynamic measure apparatus are discussed from the point of view of laser and optical engineering.
光学方法是一种精确测量小角度的主要方法和重要手段。
Optical methods is a main and important method for precise measuring small Angle.
可变角度的光谱椭偏仪(VASE)是一种测量光学薄膜折射率和厚度的仪器，它对于新材料和新过程的研究是一种强有力的技术手段。
Variable Angle spectroscopic ellipsometry (VASE) is a instrument for measuring optical film refractive index and thickness and is a powerful technique for research on new materials and processes.
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