公开(公告)号：US20130258492A1

公开(公告)日：2013-10-03

申请号：US13907003

申请日：2013-05-31

Applicant: FUJIFILM Corporation

Inventor： Taro ASAMI

IPC: G02B13/22

CPC classification number: G02B13/22 ,  G02B9/60 ,  G02B13/0045 ,  G02B13/04

Abstract: An imaging lens consists of a negative first lens having a concave object-side surface, a positive second lens, a negative third lens, a positive fourth lens having a convex object-side surface, and a positive fifth lens, which are in this order from an object side. A stop is arranged between an image-side surface of the first lens and an object-side surface of the third lens. When the focal length of an entire system is f, and the focal length of the first lens is f1, and the focal length of the second lens is f2, the following formula is satisfied: −1.30

Abstract translation: 成像透镜由具有凹面物侧表面的负第一透镜，正第二透镜，负第三透镜，具有凸面物体侧表面的正第四透镜和正第五透镜构成，其顺序为 从物体侧。 在第一透镜的图像侧表面和第三透镜的物体侧表面之间布置有止动件。 当整个系统的焦距为f，第一透镜的焦距为f1，第二透镜的焦距为f2时，满足以下公式：-1.30