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    • 2. 发明授权
    • Camera module with MEMS actuator and method for driving the same
    • 具有MEMS执行器的相机模块及其驱动方法
    • US08553342B2
    • 2013-10-08
    • US13167434
    • 2011-06-23
    • Junghyun Lee
    • Junghyun Lee
    • G02B7/02G02B26/00
    • G03B3/10G02B7/08G03B2205/0084
    • Disclosed herein is a camera module having a MEMS actuator and a driving method thereof, the camera module with a MEMS actuator, including, a MEMS actuator moving a lens with electrostatic force, for focus adjustment, an electrostatic capacity measurement unit measuring electrostatic capacity produced in the MEMS actuator, a foreign substance determination unit determining if foreign substances exist in the MEMS actuator, and outputting a trigger signal when a foreign substance exists, and a MEMS actuator drive unit driving the MEMS actuator to a reiterated vibration using the trigger signal outputted from the foreign substance determination unit.
    • 本文公开了具有MEMS致动器及其驱动方法的相机模块,具有MEMS致动器的相机模块,包括MEMS致动器,其利用静电力移动透镜以进行焦点调节,静电电容测量单元测量静电容量 MEMS致动器,异物确定单元,其确定MEMS致动器中是否存在异物,并且当存在异物时输出触发信号;以及MEMS致动器驱动单元,其使用从...输出的触发信号将MEMS致动器驱动到重复振动 异物判定单元。
    • 4. 发明申请
    • MEMS ACTUATOR MOUNTED CAMERA MODULE HAVING SAG COMPENSATION AND SAG COMPENSATION METHOD USING THE SAME
    • 具有SAG补偿和SAG补偿方法的MEMS致动器安装摄像机模块
    • US20130070149A1
    • 2013-03-21
    • US13700324
    • 2011-05-27
    • Junghyun Lee
    • Junghyun Lee
    • H04N5/232
    • H04N5/232G02B26/0841G02B26/0875H04N5/2254
    • The present invention relates to a micro-electromechanical (MEMS) actuator mounted camera module having sag compensation and a sag compensation method using the same, the camera module including a MEMS actuator mounted with a lens; a MEMS actuator moving unit outputting electrostatic capacity information corresponding to position of the lens changed by displacement move and outputting a displacement move signal to the MEMS actuator for controlling the displacement moving force; a memory unit stored with reference signal information corresponding to a maximum displacement move in the displacement move; and a signal compensation unit calculating a step range corresponding to the displacement move of the MEMS actuator based on the electrostatic capacity information outputted from the MEMS actuator moving unit and the reference signal information stored in the memory unit and compensating the displacement moving force of the MEMS actuator based on the calculated step range.
    • 本发明涉及具有下垂补偿的微机电(MEMS)致动器安装的相机模块和使用其的下垂补偿方法,所述相机模块包括安装有透镜的MEMS致动器; 输出与通过位移改变的透镜的位置相对应的静电电容信息的MEMS致动器移动单元移动并将位移移动信号输出到MEMS致动器以控制位移移动力; 存储单元,存储与所述位移移动中的最大位移移动相对应的参考信号信息; 以及信号补偿单元,基于从MEMS致动器移动单元输出的静电电容信息和存储在存储单元中的参考信号信息,计算与MEMS致动器的位移移动相对应的步长范围,并补偿MEMS的位移移动力 基于计算出的步进范围的执行器。
    • 5. 发明申请
    • CAMERA MODULE WITH MEMS ACTUATOR AND METHOD FOR DRIVING THE SAME
    • 具有MEMS致动器的相机模块及其驱动方法
    • US20110317291A1
    • 2011-12-29
    • US13167434
    • 2011-06-23
    • Junghyun Lee
    • Junghyun Lee
    • G02B7/04
    • G03B3/10G02B7/08G03B2205/0084
    • Disclosed herein is a camera module having an MEMS actuator and a driving method thereof, the camera module with an MEMS actuator, including, an MEMS actuator moving a lens with electrostatic force, for focus adjustment, an electrostatic capacity measurement unit measuring electrostatic capacity produced in the MEMS actuator, a foreign substance determination unit determining if foreign substances exist in the MEMS actuator, and outputting a trigger signal when a foreign substance exists, and an MEMS actuator drive unit driving the MEMS actuator to a reiterated vibration using the trigger signal outputted from the foreign substance determination unit.
    • 本文公开了具有MEMS致动器及其驱动方法的相机模块,具有MEMS致动器的相机模块,包括MEMS致动器,其利用静电力移动透镜以进行焦点调节,静电电容测量单元测量静电容量 MEMS致动器,外部物质确定单元,其确定MEMS致动器中是否存在异物,并且当存在异物时输出触发信号;以及MEMS致动器驱动单元,其使用从...输出的触发信号将MEMS致动器驱动到重复振动 异物判定单元。
    • 7. 发明授权
    • Auto calibration method and OIS camera using the same
    • 自动校准方法和使用相同的OIS摄像机
    • US09258487B2
    • 2016-02-09
    • US14360233
    • 2012-07-09
    • Junghyun LeeSeongcheol Jeong
    • Junghyun LeeSeongcheol Jeong
    • H04N5/232G02B27/64
    • H04N5/23254G02B27/646G03B2217/005H04N5/23258H04N5/2328H04N5/23287
    • An auto calibration method and an optical image stabilizer (OIS) camera using the same are provided. The auto calibration method includes removing a DC offset of a gyroscope. A vibrator signal applied by operating a vibrator, and an actual measurement value of the gyroscope is obtained using the applied vibrator signal. A first gain value for compensating for sensitivity of the gyroscope is calculated using the vibrator signal and the actual measurement value of the gyroscope, and an actuator is operated. A displacement of a pixel actually moving on an image is moved under an operation of the actuator. A second gain value for controlling a sensitivity variation of the actuator is calculated based on the displacement of the actually moving pixel. Accordingly, it is possible to reduce processing time and to ensure high performance.
    • 提供自动校正方法和使用其的光学图像稳定器(OIS)照相机。 自动校准方法包括去除陀螺仪的直流偏移。 使用施加的振动器信号获得通过操作振动器施加的振动器信号和陀螺仪的实际测量值。 使用振动器信号和陀螺仪的实际测量值来计算用于补偿陀螺仪的灵敏度的第一增益值,并且执行器被操作。 在图像上实际移动的像素的位移在致动器的操作下移动。 基于实际移动的像素的位移来计算用于控制致动器的灵敏度变化的第二增益值。 因此,可以减少处理时间并确保高性能。