发明授权
US07440196B2 Image forming optical system and image pickup apparatus using the same 有权
图像形成光学系统和使用其的图像拾取装置

  • 专利标题: Image forming optical system and image pickup apparatus using the same
  • 专利标题(中): 图像形成光学系统和使用其的图像拾取装置
  • 申请号: US11520988
    申请日: 2006-09-14
  • 公开(公告)号: US07440196B2
    公开(公告)日: 2008-10-21
  • 发明人: Satomi Kobayashi
  • 申请人: Satomi Kobayashi
  • 申请人地址: JP Tokyo
  • 专利权人: Olympus Imaging Corp.
  • 当前专利权人: Olympus Imaging Corp.
  • 当前专利权人地址: JP Tokyo
  • 代理机构: Kenyon & Kenyon LLP
  • 优先权: JP2005-269506 20050916
  • 主分类号: G02B15/14
  • IPC分类号: G02B15/14
Image forming optical system and image pickup apparatus using the same
摘要:
An image forming optical system comprising: a first positive lens unit disposed closest to the object side in the image forming optical system; an aperture stop; and a second positive lens unit disposed closest to an image side in the image forming optical system, the second lens unit comprising: a front lens unit whose surface closest to the image side is a concave surface which faces the image side; and a rear lens unit consisting of one positive meniscus lens whose convex surface faces the image side, the image forming optical system satisfying the following conditions: −1.0
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