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Robust Optimization of a Lens System for a Mobile Phone Camera  

Jung, Sang-Jin (한양대학교 대학원 기계공학과)
Min, Jun-Hong (한양대학교 대학원 기계공학과)
Choi, Dong-Hoon (한양대학교 최적설계신기술연구센터(iDOT))
Kim, Ju-Ho (삼성전기(주) OMS 사업부)
Publication Information
Korean Journal of Computational Design and Engineering / v.15, no.5, 2010 , pp. 325-332 More about this Journal
Abstract
A lens system for mobile phone cameras is comprised of various lenses and designed so as to satisfy design requirements for responses such as a modular transfer function (MTF). However, it is difficult to manufacture and assemble camera modules to maintain the same performance compared with the designed camera modules, because of uncertainty. We should always design a lens system by considering uncertainty that can be caused by errors in the manufacturing and assembly process of mobile phone cameras. The robust optimization offers tools of making robust decisions with the consideration of design parameters, uncontrollable parameters, and the variance of the system. Using an efficient reliability analysis method and an optimization algorithm, we obtained robust optimization results that maximize the mean of MTF and minimize the standard deviation and proposed a new robust design process for a lens system.
Keywords
Lens; Mobile Phone Camera; Reliability Analysis; Robust Optimization;
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Times Cited By KSCI : 3  (Citation Analysis)
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