发明授权
- 专利标题: Imaging lens
- 专利标题(中): 成像镜头
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申请号: US11896626申请日: 2007-09-04
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公开(公告)号: US07532415B2公开(公告)日: 2009-05-12
- 发明人: Kenichi Sato
- 申请人: Kenichi Sato
- 申请人地址: JP Saitama-Shi
- 专利权人: Fujinon Corporation
- 当前专利权人: Fujinon Corporation
- 当前专利权人地址: JP Saitama-Shi
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JPP2006-239808 20060905
- 主分类号: G02B9/34
- IPC分类号: G02B9/34
摘要:
An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens having a positive refractive power; a second lens having a positive refractive power and being a spherical glass lens having a convex surface on an image side thereof; a third lens having a negative refractive power and having a concave surface on the object side in the vicinity of an optical axis thereof; and a fourth lens having a positive refractive power and having a meniscus shape in the vicinity of the optical axis thereof, a convex surface in the meniscus shape being directed to the object side, the imaging lens satisfying a specific condition.
公开/授权文献
- US20080055742A1 Imaging lens 公开/授权日:2008-03-06
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