DOI QR코드

DOI QR Code

Design of Optical Image Stabilization Actuator for Compensating Hand Tremble

손 떨림 방지를 위한 OIS 액추에이터의 설계

  • Received : 2011.08.26
  • Accepted : 2011.09.23
  • Published : 2011.09.25

Abstract

Recently mobile phone camera become generally spread, it is required to develop high resolution, multi-functional camera module for obtaining high image quality. To satisfy this demand, number of pixels has been increased and pixel size decreased in small mobile phone cameras. As a result, image quality is seriously dropped by blur phenomena. Especially when hand tremble is occurred, image quality is dropped by camera shake. Therefore, to obtain high quality image, it is necessary to compensate user's hand tremble. In this paper, we propose voice coil actuator for compensating hand tremble, which can apply optical image stabilization (OIS) system. Sensitivity analysis and size optimization are performed to obtain high driving force. Finally, it is confirmed that the optimized electromagnetic circuit can be applied in OIS system.

Keywords

References

  1. Myeong-Gyu Song, Young-Jun Hur, No-Cheol Park, Kyoung-Su Park, Young-Pil Park, Soo-Cheol Lim, and Jae-Hyuk Park, "Design of a Voice-Coil Actuator for Optical Image Stabilization Based on Genetic Algorithm", IEEE Transactions on Magnetics, Vol. 45, No. 10, pp.4558-4561
  2. H.W. Baek, Y.J. Hur, M.G. Song, N.C. Park, Y.P. Park, K.S.Park, S.C Lim and J.H. Park, 2008, "Development of OIS actuator to compensate for trembling," Proceedings of the KSNVE Annual Autume Conference, pp. 509-511.
  3. C.W. Chiu, C.P. Chao, D.Y. Wu, 2007, " Optimal Design of a Magnetically Actuated Optical Image Stabilizer Mechanism for cameras in Mobile Phones ", IEEE Transactions on Magnetics, Vol. 43, No. 6, pp.2582-2584 https://doi.org/10.1109/TMAG.2007.893320
  4. Jung-Hyun Woo, No-Cheol Park , Young-Pil Park, Kyoung-Su Park, Young-Se Oh, and Ki-Beom Kim, 2010, "Development of Asymmetric Twin Objective Lens Actuator Using Integrated Design Method". Jpn. J. Appl. Phys, Vol.49, No.8, 08KA02-1-2 https://doi.org/10.1143/JJAP.49.08KA02