Generic misalignment aberration patterns and the subspace of benign misalignment

摘要

Q1: Why deploy iN/i wavefront sensors on a three mirror anastigmat (TMA) and not iN/i + 1?Q2: Why measure iM/i Zernike coefficients and not iM/i + 1?Q3: Why control iL/i rigid body degrees of freedom (total) on the secondary and tertiary and noti L/i + 1?The usual answer: “We did a lot of ray tracing and iN/i, iM/i, and iL/i seemed OK.”We show how straightforward results from aberration theory may be used to address these questions. We consider, in particular, the case of a three mirror anastigmat.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.