title: Comparison of exact pupil astigmatism conditions with Seidel approximations.
abstract: The aberrations of axisymmetric imaging systems can be calculated to third order by use of the Seidel formula. The Coddington equations give aberrations that have quadratic dependence on the pupil, for all field points. The pupil astigmatism conditions were recently developed to predict and control aberrations that have quadratic field dependence and arbitrary pupil dependence. We investigate the relationship between the exact pupil astigmatism conditions and the classical Seidel treatment of pupil aberration.
authors.affiliation: Optical Sciences Center, University of Arizona, 1630 East University Boulevard, Tucson, Arizona 85721, USA. zhaoc@symbol.com
authors.forename: Chunyu
authors.initials: C
authors.lastname: Zhao
authors.forename: James H
authors.initials: JH
authors.lastname: Burge
mesh_terms: D001251:Astigmatism / Q000175:diagnosis*; D006801:Humans; D008432:Mathematical Computing; D008962:Models, Theoretical; D011680:Pupil