发明授权
- 专利标题: Image lens system
- 专利标题(中): 图像透镜系统
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申请号: US13594197申请日: 2012-08-24
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公开(公告)号: US08792185B2公开(公告)日: 2014-07-29
- 发明人: Chih-Wen Hsu , Ming-Ta Chou , Tsung-Han Tsai
- 申请人: Chih-Wen Hsu , Ming-Ta Chou , Tsung-Han Tsai
- 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: TW101117913A 20120518
- 主分类号: G02B3/02
- IPC分类号: G02B3/02 ; G02B13/00
摘要:
An image lens system includes, in order from an object side to an image side, a first lens element with negative refractive power including a concave image-side surface; a second lens element with positive refractive power including a convex object-side surface; a third lens element with negative refractive power including an object-side surface and a concave image-side surface, the object-side surface and the image-side surface being aspheric; a fourth lens element with positive refractive power including a convex object-side surface and a convex image-side surface; and a fifth lens element with negative refractive power including a convex object-side surface and a concave image-side surface, the object-side surface and the image-side surface being aspheric, the fifth lens element having at least one inflection point.
公开/授权文献
- US20130308206A1 IMAGE LENS SYSTEM 公开/授权日:2013-11-21
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) |