一种测量高精度角度误差的新方法

本文严格从折射定律出发,给出了适合于任意大入射角的棱镜光学平行差的计算公式,据此提出了一种以大入射角光路测量平面光学件角度误差的新方法,并讨论了几个实例,最后分析了入射角的误差对测量精度的影响及入射角的选定原则,得出了一些有价值的结论。

A new method to test high-accurate angle

Starting strictly from refractive law, a formula to calculate the optical parallel error of a prism for any large incident angle is given and consequently,a new method with large incident angle to test angular error of plane optical element is put forward. Some examples are discussed. Finally,the effect of the error of incident angle on the testing accuracy, as well as the principle for choosing incident angle,is analysed. Some valuable conclusions are shown.