分析了色散棱镜的特性及其顶角设计问题。
This article analysed the properties and the top Angle design of the dispersion prisms.
借助高精度的测角仪器，就可测量棱镜的顶角和最小偏向角，从而得到光学玻璃的折射率。
With the help of a precise angle-measuring device, the apex Angle and the minimum deviation Angle of the prism can be measured; hence the optical refractive index of the glass.
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