基本信息:
- 专利标题： LENS BARREL AND IMAGE PICKUP APPARATUS
- 专利标题（中）：镜头条和图像拾取装置
- 申请号：US14085217 申请日：2013-11-20
- 公开(公告)号：US20140146398A1 公开(公告)日：2014-05-29
- 发明人： Takumi Uehara
- 申请人： CANON KABUSHIKI KAISHA
- 申请人地址： JP Tokyo
- 专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人地址： JP Tokyo
- 优先权： JP2012-257098 20121126
- 主分类号： G02B7/04
- IPC分类号： G02B7/04
摘要：
A lens barrel includes a cam ring configured to be rotatably driven, a lens holding cylinder provided on an outer circumference of the cam ring and configured to hold a lens, and a barrier cylinder configured to hold a lens barrier, the barrier cylinder includes a cylinder portion, a first protrusion which extends from the cylinder portion toward an image plane side, and a cam engagement portion which is engaged with a cam groove of the cam ring, the lens holding cylinder includes a cylinder portion and a second protrusion which extends from the cylinder portion toward the image plane side, and the second protrusion of the lens holding cylinder is arranged so as to overlap with the cam engagement portion of the barrier cylinder in a radial direction orthogonal to an optical axis direction.
摘要（中）：
透镜镜筒包括被构造为可旋转地驱动的凸轮环，设置在凸轮环的外圆周上并构造成保持透镜的透镜保持筒，以及构造成保持透镜屏障的阻挡筒，阻挡气缸包括气缸 从所述圆筒部朝向像面侧延伸的第一突起和与所述凸轮环的凸轮槽接合的凸轮接合部，所述透镜保持筒包括圆筒部和从所述第二突起延伸的第二突起， 圆筒部分朝向像面侧，透镜保持筒的第二突起设置成与阻挡圆筒的凸轮接合部分在与光轴方向正交的径向上重叠。
公开/授权文献:
- US08928997B2 Lens barrel and image pickup apparatus 公开/授权日：2015-01-06
IPC结构图谱:
| G | 物理 |
| --G02 | 光学 |
| ----G02B | 光学元件、系统或仪器 |
| ------G02B7/00 | 光学元件的安装、调整装置或不漏光连接 |
| --------G02B7/02 | .用于透镜 |
| ----------G02B7/04 | ..有聚焦或改变放大率的机构 |