公开(公告)号：US20110043934A1

公开(公告)日：2011-02-24

申请号：US12769986

申请日：2010-04-29

Applicant: Bruce C. SUN ,  Tzong-Shii Pan

Inventor： Bruce C. SUN ,  Tzong-Shii Pan

IPC: G02B7/02 ,  B23P11/02 ,  B23P11/00

CPC classification number: G03B3/02 ,  G02B7/08 ,  H04N5/2254 ,  H04N5/2257 ,  Y10T29/49826 ,  Y10T29/49863 ,  Y10T29/49885

Abstract: Actuation mechanisms driven by rotary motors are described whereby linear movement of a mechanical component, typically a lens barrel, is effected without rotating the linear moving component. For mechanisms driven by miniature piezoelectric motors, this is accomplished by driving a rotor which in turn causes linear, and only linear, movement of a lens barrel according to structures described in different embodiments. A preferred embodiment includes a threaded rotor moving both rotationally and axially that drives a two-piece lens barrel assembly. Another embodiment includes a rotor having a grooved split ring on its outer surface that does not move axially and drives a lens barrel through a threaded interface. Another embodiment includes a two-piece rotor that does not move axially and drives a lens barrel through a threaded interface. Typically, anti-rotation pins and corresponding grooves in a fixed structure are used to prevent the lens barrel from rotating.

Abstract translation: 描述由旋转电机驱动的致动机构，其中机械部件（通常为镜筒）的线性运动在不旋转线性运动部件的情况下进行。 对于由微型压电电动机驱动的机构，这通过驱动转子来实现，转子又根据不同实施例中描述的结构导致镜筒的线性且仅线性移动。 优选实施例包括旋转和轴向移动的螺纹转子，其驱动两件式镜筒组件。 另一个实施例包括转子，其外表面上具有槽形开口环，其不会轴向移动并通过螺纹接口驱动透镜筒。 另一实施例包括两片式转子，其不会轴向移动并通过螺纹接口驱动镜筒。 通常，固定结构中的防旋转销和相应的槽被用于防止镜筒旋转。