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发明申请
US20090161236A1 IMAGING LENS SYSTEM AND IMAGING APPARATUS 有权
成像镜头系统和成像设备

  • 专利标题： IMAGING LENS SYSTEM AND IMAGING APPARATUS
  • 专利标题（中）： 成像镜头系统和成像设备
  • 申请号： US12334305
    申请日： 2008-12-12
  • 公开(公告)号： US20090161236A1
    公开(公告)日： 2009-06-25
  • 发明人: Yu KITAHARA
  • 申请人： Yu KITAHARA
  • 优先权： JPP2007-328236 20071220; JPP2007-328237 20071220
  • 主分类号： G02B9/62
  • IPC分类号： G02B9/62
IMAGING LENS SYSTEM AND IMAGING APPARATUS
摘要：
The imaging lens system includes a negative first lens disposed on a most object side, having a concave surface directed toward the object side and having a meniscus shape, a cemented lens LC disposed on a most image side and having a convex surface on its most object side, and an aperture diaphragm disposed just in front of the object side of the cemented lens. The system satisfies the following conditional expressions: 0.05 15 where R1 and R2 denote radius of curvatures of object side and image side surfaces of the first lens, respectively, and vd1 and vd2 denote Abbe numbers of lenses, which are located on the most object side and on the most image side among lenses constituting the cemented lens, at the d-line, respectively.
摘要（中）：

成像透镜系统包括设置在最物体侧的负第一透镜，具有朝向物体侧的凹面，并具有弯月形状，配置在最像像侧的胶合透镜LC，并且在其最物体上具有凸面 以及刚好位于胶合透镜的物体侧前方的孔径光阑。 系统满足以下条件表达式：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.05 <（R2-R1）/（R1 + R2）<0.25 < -formulae description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> vd1-vd2> 15 <？in-line- 公式描述=“在线公式”end =“tail”？>其中R1和R2分别表示第一透镜的物体侧和像侧面的曲率半径，vd1和vd2表示透镜的阿贝数， 分别位于构成胶合透镜的透镜中的最物体侧和最大像侧的d线。

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