Solution for first-order design of a two-conjugate zoom system

Abstract

The first-order solution is analyzed with particularly initial conditions for a two-conjugate zoom system that consists of three lenses. We find the solution ranges of system parameters with the conditions in which the object/image and pupil magnifications of the middle lens are taken to be 1 and -1 or -1 and 1, and the system magnification is 1 or -1 at the mean position of zooming. Several examples are given to demonstrate this analysis. (C) 1997 Society of Photo-Optical Instrumentation Engineers.