A new scheme is put forward,in which a linear light source is used for glancing incidence measuring index of refraction of prism,and the only one boundary between light and shade can be exactly found.

 
  • 提出一种利用线光源,并通过旋转载物台获得单一的明暗分界线的掠射法测量棱镜折射率的新方案。
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