title: Computer-guided alignment II :Optical system alignment using differential wavefront sampling.
abstract: We present a differential wavefront sampling method for the efficient alignment of centred optical systems. Using the inter-element effects reported in our previous study, this method generates a linear symmetric matrix that relates the optical wavefront to misalignments within the system. The solution vector of this matrix equation provides a unique description of decentre and tilt misalignments of the system. We give a comparison of this approach to the existing method in the first case study and then illustrate characteristics of the new approach using the subsequent four case studies and Monte-Carlo alignment simulations. The results reveal superiority of the method over the existing one in misalignment estimation accuracy and demonstrate the practical feasibility and robustness.
authors: Hanshin
authors: H
authors: Lee
authors: Gavin B
authors: GB
authors: Dalton
authors: Ian A J
authors: IA
authors: Tosh
authors: Sug-Whan
authors: SW
authors: Kim