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1. 发明授权

US07773313B2 Cam mechanism of a retractable zoom lens 失效
标题翻译：可伸缩变焦镜头的凸轮机构
公开(公告)号：US07773313B2
公开(公告)日：2010-08-10
申请号：US12363993
申请日：2009-02-02
申请人： Kazunori Ishizuka , Toshiharu Suzuki , Makio Oishi , Koto Miya
发明人： Kazunori Ishizuka , Toshiharu Suzuki , Makio Oishi , Koto Miya
IPC分类号： G02B15/14
CPC分类号： G03B17/04 , G03B17/12
摘要： A cam mechanism includes a cam ring having front and rear cam grooves which have a common reference cam diagram and are formed so that a front part of the front cam groove and a rear part of the rear cam groove are omitted from the reference cam diagram. A normal-width section and a wide-width section are provided in each of the front and rear cam grooves. In a zoom range, an associated cam follower of a driven member is engaged in the normal-width section of one of the front and rear cam grooves, and another associated cam follower of the driven member is positioned out of the other of the front and rear cam grooves. In a transition state between the zoom range and an accommodated position, both of the associated cam followers are positioned out of the normal-width sections of the respective front and rear cam grooves.
摘要翻译：凸轮机构包括具有前凸轮槽和后凸轮槽的凸轮环，凸轮槽具有公共基准凸轮图，并且形成为使得前凸轮槽的前部和后凸轮槽的后部从基准凸轮图中省略。在前凸轮槽和后凸轮槽中的每一个中设置有普通宽度部分和宽幅部分。在变焦范围中，从动构件的相关联的凸轮从动件接合在前凸轮槽和后凸轮槽中的一个的正常宽度部分中，并且从动构件的另一相关联的凸轮从动件位于前侧的另一个之外，后凸轮槽。在变焦范围和收纳位置之间的过渡状态下，两个相关联的凸轮从动件位于相应的前后凸轮槽的正常宽度部分之外。

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