首页> 外国专利> ZOOM LENS APPARATUS WITH FOCUS ADJUSTING AND OPTICAL IMAGING DEVICE THEREWITH

ZOOM LENS APPARATUS WITH FOCUS ADJUSTING AND OPTICAL IMAGING DEVICE THEREWITH

机译:具有聚焦调整和光学成像装置的变焦镜头装置

摘要

A zoom lens apparatus with focus adjusting and an optical imaging device therewith are provided, wherein a combination of screw-driven ultra sonic motor and voice coil motor is adopted to drive different optical lens sets (25,61). For the ultra sonic motor, the screw motion of the rotor (23) is transformed into a simple rectilinear motion by providing a third tube (24) placed in the rotor (23) and radially fixed relative to the stator (22). Thus the zoom lens apparatus with focus adjusting produced with the combination can well maintain the stability of the optical axis, moreover, the combination of different driving methods integrates and makes better use of lens sets of different functions and hence simplifies the overall structure.
机译:提供了一种具有焦点调节的变焦镜头设备及其光学成像装置,其中,采用螺杆驱动的超声波马达和音圈马达的组合来驱动不同的光学镜头组(25,61)。对于超声波马达,通过提供放置在转子(23)中并相对于定子(22)径向固定的第三管(24),将转子(23)的螺杆运动转换成简单的直线运动。因此,通过该组合产生的具有焦点调节的变焦透镜设备可以很好地保持光轴的稳定性,此外,不同驱动方法的组合可以集成并更好地利用具有不同功能的透镜组,从而简化了整体结构。

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