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    • 5. 发明授权
    • Optical image stabilization calibration
    • 光学图像稳定校准
    • US09438802B2
    • 2016-09-06
    • US14315240
    • 2014-06-25
    • Apple Inc.
    • Thomas M. GregoryNader W. Moussa
    • H04N5/232G06T3/40G02B27/64H04N5/225
    • H04N5/23287G02B27/646G06T3/4053H04N5/2257
    • In some embodiments, a camera actuator module includes a linear actuator motor for moving a lens assembly, a position sensor coupled to the lens assembly, a mechanical end stop mounted in the path of motion of the lens assembly, and a non-transitory storage medium storing program instructions. In some embodiments, the program instructions are computer-executable to implement exciting, using the linear actuator motor, a mechanical resonance in the camera actuator module calculated to cause the lens assembly to move to an overload displacement by powering the linear actuator of the camera actuator module at a resonant frequency of the camera actuator module, measuring, using the position sensor, a current maximal displacement of the lens assembly during the exciting using a position sensor, and estimating a position of the mechanical end stop using at least the current maximal displacement.
    • 在一些实施例中,相机致动器模块包括用于移动透镜组件的线性致动器马达,耦合到透镜组件的位置传感器,安装在透镜组件的运动路径中的机械端部止动件,以及非瞬时存储介质 存储程序指令。 在一些实施例中,程序指令是计算机可执行的,以使用线性致动器马达来实现令人兴奋的功能,该相机致动器模块中的机械共振被计算为通过为相机致动器的线性致动器供电而使透镜组件移动到过载位移 模块,在相机致动器模块的谐振频率处,使用位置传感器测量在使用位置传感器的激励期间的透镜组件的当前最大位移,以及使用至少当前最大位移来估计机械端部止动件的位置 。
    • 6. 发明申请
    • OPTICAL IMAGE STABILIZATION CALIBRATION
    • 光学图像稳定校准
    • US20150350549A1
    • 2015-12-03
    • US14315240
    • 2014-06-25
    • Apple Inc.
    • Thomas M. GregoryNader W. Moussa
    • H04N5/232G06T3/40
    • H04N5/23287G02B27/646G06T3/4053H04N5/2257
    • In some embodiments, a camera actuator module includes a linear actuator motor for moving a lens assembly, a position sensor coupled to the lens assembly, a mechanical end stop mounted in the path of motion of the lens assembly, and a non-transitory storage medium storing program instructions. In some embodiments, the program instructions are computer-executable to implement exciting, using the linear actuator motor, a mechanical resonance in the camera actuator module calculated to cause the lens assembly to move to an overload displacement by powering the linear actuator of the camera actuator module at a resonant frequency of the camera actuator module, measuring, using the position sensor, a current maximal displacement of the lens assembly during the exciting using a position sensor, and estimating a position of the mechanical end stop using at least the current maximal displacement.
    • 在一些实施例中,相机致动器模块包括用于移动透镜组件的线性致动器马达,耦合到透镜组件的位置传感器,安装在透镜组件的运动路径中的机械端部止动件,以及非瞬时存储介质 存储程序指令。 在一些实施例中,程序指令是计算机可执行的,以使用线性致动器马达来实现令人兴奋的功能,该相机致动器模块中的机械共振被计算为通过为相机致动器的线性致动器供电而使透镜组件移动到过载位移 模块,在相机致动器模块的谐振频率处,使用位置传感器测量在使用位置传感器的激励期间的透镜组件的当前最大位移,以及使用至少当前最大位移来估计机械端部止动件的位置 。