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    Article

    Small form factor actuator design for camera phone lens systems

    This paper aims to suggest a concept design of a small form factor actuator for focusing or zooming systems of the camera phone lens. A traditional voice coil motor (VCM) type is used because it is very small,...

    Jae Seok Choi, Jeonghoon Yoo, No-Cheol Park in Microsystem Technologies (2009)

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    Article

    Dynamic analysis of a linear motion guide having rolling elements for precision positioning devices

    Linear motion (LM) guides supported by rolling elements can be used to ultra-accurately position precision machines. For accurate positioning, the micro and macro dynamic behavior of the LM guide must be under...

    Yi Yong-Sub, Yoon Young Kim, Jae Seok Choi… in Journal of Mechanical Science and Technolo… (2008)