Invention Grant
US08218251B2 Lens barrel having small unit for stably guiding focus lens, and image pickup apparatus
有权
具有用于稳定地引导聚焦透镜的小单元的镜筒和图像拾取装置
- Patent Title: Lens barrel having small unit for stably guiding focus lens, and image pickup apparatus
- Patent Title (中): 具有用于稳定地引导聚焦透镜的小单元的镜筒和图像拾取装置
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Application No.: US12828455Application Date: 2010-07-01
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Publication No.: US08218251B2Publication Date: 2012-07-10
- Inventor: Ryuichi Nagae
- Applicant: Ryuichi Nagae
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP2009-161319 20090708
- Main IPC: G02B7/02
- IPC: G02B7/02
Abstract:
A lens barrel includes a drive ring having a hollow cylindrical shape and configured to rotate around an optical axis, and a lens holder configured to move in an optical axis direction relative to the drive ring, the lens holder including a body located inside of the drive ring and configured to hold a lens, and an arm extending to outside of the drive ring. The drive ring has a notch, and the arm of the lens holder is configured to enter the notch of the drive ring.
Public/Granted literature
- US20110007409A1 LENS BARREL HAVING SMALL UNIT FOR STABLY GUIDING FOCUS LENS, AND IMAGE PICKUP APPARATUS Public/Granted day:2011-01-13
Information query
IPC分类:
| 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 |
