Aberrations of a Zoom Lens Kernel

摘要

This paper discusses the aberrations of a zoom lens kernel and a method to determine them. Separating the kernelaberrations provides insight into the zoom lens design process and helps the process by decoupling design tasks. Thedesign of a zoom lens is discussed, step by step, and some alternate kernel solutions are shown. A technique forcontrolling uniform aberrations is discussed, and a reverse ray tracing method for displaying kernel aberrations ispresented. The role of pupil coma in controlling distortion is also discussed.