发明申请
US20120206639A1 Image Pickup Lens and Image Pickup Apparatus 有权
图像拾取镜头和图像拾取装置

  • 专利标题: Image Pickup Lens and Image Pickup Apparatus
  • 专利标题(中): 图像拾取镜头和图像拾取装置
  • 申请号: US13501678
    申请日: 2010-10-06
  • 公开(公告)号: US20120206639A1
    公开(公告)日: 2012-08-16
  • 发明人: Kazuki MatsuiYasunari Fukuta
  • 申请人: Kazuki MatsuiYasunari Fukuta
  • 优先权: JP2009-239640 20091016
  • 国际申请: PCT/JP2010/067533 WO 20101006
  • 主分类号: H04N5/225
  • IPC分类号: H04N5/225 G02B13/18 G02B9/12
Image Pickup Lens and Image Pickup Apparatus
摘要:
Provided is an image pickup lens composed of three lens elements and an image pickup apparatus using the same, where the image pickup lens has satisfactorily corrected aberrations despite being smaller in size than conventional image pickup lenses. As image pickup lens includes, in order from the object side, an aperture stop, a first lens, a second lens, and a third lens. The first lens is a positive lens and is a meniscus lens having a convex surface facing the object side and a concave surface facing the object side, and the third lens is a negative lens. The image pickup lens satisfies conditional expressions relating to an air gap between the second and third lenses, a focal length of the second lens, and a curvature radius of the object-side surface of the second lens.
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