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Invention Grant
CN106170054B 拍摄装置 失效 - 权利终止 转让

拍摄装置
Abstract:
提供拍摄装置，能进行高精度的位置检测抑制产生驱动力变动，拍摄装置(1)具备：镜头保持框(32a)；固定框(51)，以能在光轴方向上移动的方式配置镜头保持框；多个驱动用磁铁(43a)，以沿着与光轴平行的方向延伸的方式形成，以磁极沿着光轴周期性地反转的方式配置于固定框；多个驱动用线圈(43b)，以分别与各驱动用磁铁相对的方式配置于镜头保持框，在光轴方向以驱动用磁铁的磁极周期相互错开的方式分别配置；多个第1检测部(44a)，检测各驱动用磁铁的磁力变化来检测镜头保持框相对于固定框的位置；第2检测部(44b)，检测镜头保持框相对于固定框的位置，在检测到镜头保持框相对于固定框到达规定位置时，将该时刻的第2检测部的输出信号设定为基准位置，基于第2检测部的输出信号进行之后的镜头保持框的位置检测。
Abstract(English):

An image pickup apparatus includes: a lens holding frame; a fixed frame; driving magnets arranged at the fixed frame such that magnetic poles are alternately reversed along an optical axis; driving coils arranged at the lens holding frame so as to be opposed respectively to the driving magnets; first detection portions that detect a position of the lens holding frame by detecting a change of a magnetic force of the respective driving magnets; a second detection portion, wherein when it is detected that the lens holding frame has reached a predetermined position, an output signal from the second detection portion at the time of the detection is set as a reference position, and position detection of the lens holding frame after the detection is performed based on the output signal from the second detection portion.

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