Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Improvement of Dynamic Characteristics of an Optical Image Stabilizer in a Compact Camera

초소형 카메라 흔들림 보정장치의 동특성 개선

  • 송명규 (연세대학교 정보저장기기연구센터) ;
  • 손동훈 (연세대학교 기계공학과) ;
  • 박노철 (연세대학교 기계공학과) ;
  • 박경수 (연세대학교 기계공학과) ;
  • 박영필 (연세대학교 기계공학과)
  • Received : 2010.12.17
  • Accepted : 2011.01.26
  • Published : 2011.02.20
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Abstract

Optical image stabilization is a device to compensate the camera movement in the exposure time. The compensation is implemented by movable lens or image sensor that adjusts the optical path to the camera movement. Generally, the camera is moved by a handshake, thus the handshake is considered as an external disturbance. However, there are many other vibrations such as car and train vibration. In this paper, the optical image stabilization system in high frequency region is presented. Notch filter and lead compensator are designed and applied to improve the stability without changing the actuator. To verify the performance of the optical image stabilization system in high frequency region, the experiment equipment with moving object is established. It is confirmed that the opticalimage stabilization system does not diverge at the resonance frequency.

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References

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