Title :
Development of small sized actuator for optical image stabilization
Author :
Song, Myeong-Gyu ; Hur, Young-Jun ; Park, No-Cheol ; Park, Young-Pil ; Park, Kyoung-Su ; Lim, Soo-Cheol ; Park, Jae-Hyuk
Author_Institution :
Center for Inf. Storage Device, Yonsei Univ., Seoul, South Korea
Abstract :
In this paper, 2-axis voice coil actuator of optical image stabilization which is a technique to compensate a trembling of camera caused by a vibration of user´s hand is suggested. The actuator is designed for mobile phone camera. Considering total size and application of auto focusing module, the concept of the moving auto-focusing module is selected for optical image stabilization. The handshake of mobile phone is measured to define the specification of the actuator. Two kinds of 2-axis mechanisms made of two prismatic joints are designed and united the electromagnetic part which is already designed. Finally, two types are fabricated and verified experimentally.
Keywords :
actuators; cameras; image processing; mobile handsets; 2-axis mechanisms; 2-axis voice coil actuator; camera trembling; mobile phone camera; moving auto-focusing module; optical image stabilization; prismatic joints; small sized actuator; Actuators; Cameras; Coils; Electromagnetic measurements; Image quality; Image sensors; Lighting; Mobile handsets; Optical filters; Optical sensors; mobile phone camera; optical image stabilization; voice coil actuator;
Conference_Titel :
Optomechatronic Technologies, 2009. ISOT 2009. International Symposium on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-4209-6
Electronic_ISBN :
978-1-4244-4210-2
DOI :
10.1109/ISOT.2009.5326115
