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发明授权
CN101988981B 镜筒单元 失效 - 权利终止

镜筒单元
摘要：
一种镜筒单元，该镜筒单元包括：保持件(21)，其被构造成保持透镜(20)；凸轮筒(30)，其包括被构造成与保持件接合而限定保持件在光轴方向上的移动的凸轮槽(34)、和具有凸轮槽的一部分并且在光轴方向上突出的突出部(32c)；以及直进筒(40)，其被构造成引导保持件的直进移动，该直进筒包括形成槽口(48)的凸缘部(45)。在从突出部位于槽口中的缩回状态向突出部位于槽口之外的摄像状态转换的过程中，直进筒相对于凸轮筒在光轴方向上移动。
摘要（英）：

A lens barrel unit includes a holder configured to hold a lens, a cam cylinder including a cam groove configured to engage with the holder and define a movement of the holder in an optical axis direction, and a projection that has a part of the cam groove and projects in the optical axis direction, and a straightforward movement cylinder configured to guide a straightforward movement of the holder, the straightforward movement cylinder including a flange forming a notch. In a process from a retraction state in which the projection is located in the notch to an image pickup state in which the projection is located outside of the notch, the straightforward movement cylinder moves relative to the cam cylinder in the optical axis direction.

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