General Sine Condition for Plane-Symmetric Imaging Systems and Some Example Aplanatic Designs

摘要

General sine condition for plane-symmetric imaging system has been derived before. If satisfied, an optical system is free of all aberrations with linear field dependence. In this paper, we use Welford's isoplanatism theorem for non-symmetric systems to corroborate the general sine condition. We also present some special types of plane-symmetric aplanatic imaging systems to show the effectiveness of the condition.