Abstract

This article demonstrates a method of tolerance reallocation via the Taguchi method for optical zoom lens design, which is based on the indicated specifications and corresponding tolerances derived from optical simulation in order to resolve the conventional dilemmas of performance between the modulation transfer function (MTF), relative illumination (RI), and distortion (DST) but also improve the performance without problems of tolerance. Generally speaking, the above refer to trade-offs between performance and tolerance of a kind which complicates modern optical design in high-quality products. In this paper, the Taguchi method of investigation was successfully adopted in seeking to balance MTF, DST, and RI so as to reallocate tolerance; therefore, we concluded that displays of multiperformance criteria can simultaneously give efficient help in tolerancing optimization in a way which approaches the exact manufacturing requirements. Without question, the proposed process could be copied when selecting other ways of evaluating image quality.

© 2014 Optical Society of America

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