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发明公开
CN102576144A 摄像镜头 有权 转让

摄像镜头
摘要：
本发明涉及摄像镜头。本发明提供不仅小型而且还能良好地修正像差的摄像镜头。本发明的摄像镜头的构成为，从物体侧依次排列：光阑(ST)；在光轴附近为双凸形状的第一透镜(L1)；在光轴附近为将凸面朝向物体侧的弯月形状的负的第二透镜(L2)；在光轴附近为将凹面朝向物体侧的弯月形状的正的第三透镜(L3)；以及在光轴附近为将凸面朝向物体侧的弯月形状的正的第四透镜(L4)，在将整个透镜系统的焦距设为f、将从第一透镜(L1)的物体侧的面至第四透镜(L4)的像面侧的面在光轴上的距离设为L14时，满足以下条件式。0.5＜L14/f＜0.8。
摘要（英）：

Disclosed is an image pickup lens which can excellently correct aberration, even the lens is small in size. The image pickup lens is configured by, from the object side, sequentially disposing: a diaphragm (ST); a first lens (L1), which has a biconvex shape in the vicinity of the optical axis; a negative second lens (L2), which has a meniscus shape with the convex surface on the object side in the vicinity of the optical axis; a positive third lens (L3), which has a meniscus shape with the concave surface on the object side in the vicinity of the optical axis; and a positive fourth lens (L4). When the focal point distance of the whole lens system is expressed as f, and the distance on the optical axis from the first lens (L1) surface on the object side to the fourth lens (L4) surface on the imaging plane side is expressed as L14, the following conditional expression (1) is satisfied. 0.5

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