Ronchi test using overlapping averaging 4-frame algorithm
暂无分享,去创建一个
An automatic technique to process Ronchigrams is presented. The phase shifting error introduced by a phase shifter is reduced using overlapping averaging four-frame algorithm. A standard plano-convex lens is tested to verify the accuracy of this technique.
[1] T Yatagai,et al. Fringe scanning Ronchi test for aspherical surfaces. , 1984, Applied optics.
[2] Rihong Zhu,et al. New algorithm on phase-shifting interferometry: the overlapping averaging 4-frame algorithm , 1993, Optics & Photonics.