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Optimal design and experimental verification of a magnetically actuated optical image stabilization system for cameras in mobile phones

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4 Author(s)
Chi-Wei Chiu ; Department of Electrical and Control Engineering, National Chiao Tung University, Hsinchu 300, Taiwan ; Chao, P.C.-P. ; Kao, Nicholas Y.-Y. ; Young, Fu-Kuan

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A novel miniaturized optical image stabilizer (OIS) is proposed, which is installed inside the limited inner space of a mobile phone. The relation between the VCM electromagnetic force inside the OIS and the applied voltage is first established via an equivalent circuit and further validated by a finite element model. Various dimensions of the VCMs are optimized by a genetic algorithm (GA) to maximize sensitivities and also achieving high uniformity of the magnetic flux intensity.

Published in:

Journal of Applied Physics  (Volume:103 ,  Issue: 7 )