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发明申请
US20140184845A1 IMAGING OPTICAL SYSTEM, CAMERA DEVICE AND MOBILE INFORMATION TERMINAL DEVICE 有权
成像光学系统，相机设备和移动信息终端设备

  • 专利标题： IMAGING OPTICAL SYSTEM, CAMERA DEVICE AND MOBILE INFORMATION TERMINAL DEVICE
  • 专利标题（中）： 成像光学系统，相机设备和移动信息终端设备
  • 申请号： US14138339
    申请日： 2013-12-23
  • 公开(公告)号： US20140184845A1
    公开(公告)日： 2014-07-03
  • 发明人: Takahiro NAKAYAMA
  • 申请人： Takahiro NAKAYAMA
  • 优先权： JP2012-285931 20121227
  • 主分类号： G02B13/00
  • IPC分类号： G02B13/00 ;  G02B13/04
IMAGING OPTICAL SYSTEM, CAMERA DEVICE AND MOBILE INFORMATION TERMINAL DEVICE
摘要：
An imaging optical system, includes: in the order from an object side to an image plane side, a first lens group having a first lens which is formed as a negative lens; a second lens group having a second lens which is formed as a plano-concave lens, a third lens which is formed as a negative meniscus lens, and a fourth lens which is formed as a biconvex lens; an aperture stop; a third lens group having a fifth lens which is formed as a biconvex lens, and a sixth lens which is formed as a biconcave lens; and a fourth lens group having a seventh lens which is formed as a negative meniscus lens.
摘要（中）：

成像光学系统包括：从物体侧到像面侧的顺序，具有形成为负透镜的第一透镜的第一透镜组; 具有形成为平凹透镜的第二透镜，形成为负弯月形透镜的第三透镜和形成为双凸透镜的第四透镜的第二透镜组; 孔径光阑; 具有形成为双凸透镜的第五透镜的第三透镜组和形成为双凹透镜的第六透镜; 以及具有形成为负弯月形透镜的第七透镜的第四透镜组。

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