First-order analysis of a two-conjugate zoom system
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A general analysis for the first-order design of the two- conjugate zoom system, which consists of three lenses and has a real or virtual image, is presented. The design formulas are derived. Of two- conjugate zoom systems, we analyze the solution areas in the system parameter diagrams under two particular initial conditions in which the object/image and pupil magnifications of the middle lens are taken to be 1 and 2 1o r 21 and 1. Two design methods are proposed. Several examples are given to demonstrate the proposed design procedures. © 1996 Society of Photo-Optical Instrumentation Engineers.
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