The paper proposes a method of measuring wave length of light wave by using minimum deviation angle based on raster.
本文通过光栅衍射给出了用最小偏向角测光波波长的方法。
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.
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.
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。
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