Centroids analysis for circle of confusion in reverse Hartmann test

Zhao Zhu^{1, 2}, Hui Mei^{1, 2, †}, Xia Zheng-Zheng^{1, 2}, Zhao Yue-Jin^{1, 2}

(color online) Light path of coaxial RHT system. d is the pin-aperture diameter, f is the focus in object space, is the focus in image space, is the diameter of CoC.