Zhong Jingang (Basic Courses Department,Nanchang University,Nanchang 330029) Ling Gan (Nanchang Health School,Nanchang 330006) Wang Ming (Basic Courses Department,Nanchang University,Nanchang 330029) Chen Weimin (The Open Laboratory for Optoelectronic T
Abstract：The four-step phase-shifting algorithm for quantitative analysis of the Ronchigram is derived from the wave theory of Ronchi test.This algorithm provides a simple but powerful tool for quantitative wavefront evaluation.
1998, Vol. 20 