发明授权
- 专利标题: Optical image capturing lens system
- 专利标题(中): 光学摄像镜头系统
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申请号: US13339698申请日: 2011-12-29
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公开(公告)号: US08488259B2公开(公告)日: 2013-07-16
- 发明人: Chun-Shan Chen , Hsiang-Chi Tang , Po-Lun Hsu , Dung-Yi Hsieh
- 申请人: Chun-Shan Chen , Hsiang-Chi Tang , Po-Lun Hsu , Dung-Yi Hsieh
- 申请人地址: TW Taichung
- 专利权人: Largan Precision Co., Ltd.
- 当前专利权人: Largan Precision Co., Ltd.
- 当前专利权人地址: TW Taichung
- 代理机构: Morris Manning & Martin LLP
- 代理商 Tim Tingkang Xia, Esq.
- 优先权: TW100125487A 20110719
- 主分类号: G02B3/02
- IPC分类号: G02B3/02
摘要:
This invention provides an optical image capturing lens system comprising: a first lens element with positive refractive power having a convex object-side surface; a second lens element; a third lens element; a fourth lens element; and a fifth lens element with negative refractive power, at least one of the object-side and image-side surfaces thereof being aspheric, and at least one inflection point is formed on at least one of the object-side and image-side surfaces thereof; wherein the system at least has one front stop and one rear stop; which are positioned between an imaged object and the third lens element as well as between the third lens element and the fifth lens element, respectively. By such arrangement, photosensitivity and total track length of the system can be reduced, and the aberration and astigmatism of the system can be effectively corrected. Moreover, the focusing performance thereof can be improved.
公开/授权文献
- US20130021680A1 OPTICAL IMAGE CAPTURING LENS SYSTEM 公开/授权日:2013-01-24
信息查询
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B3/00 | 简单或复合透镜 |
G02B3/02 | .具有非球面的(G02B3/10优先) |