Measurement of three-dimensional wavefronts using the Ichikawa–Lohmann–Takeda solution to the irradiance transport equation

Abstract

In this paper, we use the irradiance transport equation and the Fourier transform-based experimental solution given by Ichikawa-Lohmann-Takeda. We analyze experimental factors such as the digital filter, the introduced error for the rotation and period of the Ronchi ruling, and a new method is demonstrated for the measurement of 3D wavefront information.