Study of 3D measurement of transparent objects based on phase measuring deflectometry

Abstract

Three-dimensional measurement of transparent objects has always been a challenging task in the field of optics. This is because measurements of transparent objects can be affected by complex optical effects such as transmission, refraction, and multiple reflections. This study aims to investigate measurement methods for transparent objects based on polarization analysis and phase deflection techniques to improve measurement accuracy and reliability. In this article, we introduced the principle of polarization phase deflection technique firstly. Then, we set up an experimental system using polarized light sources to reduce the interference from multiple reflections. Experimental results demonstrate that the measurement method based on polarization analysis and phase deflection enhances the accuracy of measurement results. Finally, we analyzed the advantages and limitations of this method.