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http://dx.doi.org/10.5302/J.ICROS.2009.15.11.1076

A Method to Prevent Transfer Device of Image Stabilizer from Blunting by Artificial Vibration  

Yeom, Dong-Hae (삼성전자 DMC 총괄 VD 사업부)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.15, no.11, 2009 , pp. 1076-1079 More about this Journal
Abstract
This article deals with an optical image stabilizer which moves an image sensor in the direction of cancelling the vibration caused by hand shaking to prevent a photographed image from blurring. The ball-guide way method adopted as a transfer device of the image sensor is easy to be manufactured because of its simple structure and is suitable to minimize the friction between mechanisms, but has weakness of a chance of physical defect such as groove and rising. In case that the movement of the transfer device equipped with the image sensor is blunted because a ball is stuck in defects of guide way, the performance of the image stabilizer falls down drastically. We propose a method to prevent the transfer device from blunting by applying artificial vibration. At this time, the artificial vibration should be designed under consideration of dynamic characteristics and specifications of the system to be discriminated from the vibration caused by hand shaking.
Keywords
optical image stabilizer; blunting of transfer device; slip and stick; artificial vibration;
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  • Reference
1 Y. Okamoto and R. Yoshida, 'Development oflinear actuators using piezoelectric elements,' Electronics and Communications in Japan, Part 3, vol. 81, no. 11, pp. 11-17, 1998   DOI   ScienceOn
2 S. Cardani, 'Optical image stabilization for digital cameras,' IEEE Control System Magazine., pp. 21-22, Apr. 2006
3 G R. Chen, Y. M. Yell, S. J. Wang, and H. C. Chiang, 'A novel structure for digital image stabilizer,' The 2000 IEEE AsiaPacific Conference on Circuits and Systems, pp. 101-104, Dec. 2000
4 K. Sato, S. Ishizuka, A. Nikami, and M. Sato, 'Control technique for Optical image stabilizer system,' IEEE Transactions on Consumer Electronics, vol. 39, no. 3, pp. 461-466,Aug.1993   DOI   ScienceOn
5 K. Y. Bang, 'A Study on CCD Controlled Image Stabilizing System for Camcorders,' Dissertation of the Degree of Master, the Graduate School of Korea University, Dec. 1997
6 M. Oshima, T. Hayashi, S. Fujioka, and T. lnaji, 'VHS camcorder with electric image stabilizer,' IEEE Transactions on Consumer Electronics, vol. 35, no. 4, pp. 749-758, Nov. 1989   DOI   ScienceOn