公开(公告)号：US09285565B2

公开(公告)日：2016-03-15

申请号：US14595237

申请日：2015-01-13

Applicant: FUJIFILM CORPORATION

Inventor： Takuya Tanaka ,  Michio Cho ,  Takayuki Noda

IPC: G02B3/02 ,  G02B13/18 ,  G02B9/60 ,  G02B13/00 ,  G03B13/32

CPC classification number: G02B13/0045 ,  G02B9/60 ,  G03B13/32

Abstract: An imaging lens, substantially consisting of five lenses, composed of a positive first lens with a convex surface on the object side, a negative second lens with a concave surface on the object side, a third lens having a negative meniscus shape with a convex surface on the object side, a fourth lens having a positive meniscus shape with a concave surface on the object side, and a negative fifth lens with a concave surface on the image side, the image side surface having an aspherical shape with at least one inflection point located inward in a radial direction from the intersection between the image side surface and a principal ray of the maximum angle of view toward the optical axis, disposed in order from the object side, and satisfies given conditional expressions.

Abstract translation: 一种成像透镜，基本上由五个透镜组成，由物体侧具有凸面的正的第一透镜，物体侧具有凹面的负的第二透镜，具有凸面的负弯液面的第三透镜 在物体侧具有在物体侧具有凹面的正弯月形状的第四透镜和在像侧具有凹面的负第五透镜，该像侧表面具有至少一个拐点的非球面形状 从物体侧依次设置从图像侧表面和最大视角的主光线之间的交点向径向内侧，并且满足给定条件表达式。

公开(公告)号：US09207432B2

公开(公告)日：2015-12-08

申请号：US14490040

申请日：2014-09-18

Applicant: FUJIFILM Corporation

Inventor： Takuya Tanaka ,  Tatsuro Iwasaki ,  Michio Cho

IPC: G02B9/60 ,  G02B13/18 ,  G02B13/00

CPC classification number: G02B9/60 ,  G02B13/0045

Abstract: An imaging lens substantially consists of five lenses consisting of, in order from the object side: a first lens having a positive refractive power and having a meniscus shape with a convex surface toward the object side; a second lens having a biconcave shape; a third lens having a positive refractive power and having a meniscus shape with a convex surface toward the image side; a fourth lens having a meniscus shape with a convex surface toward the image side; and a fifth lens having a negative refractive power and having a concave surface toward the object side.

Abstract translation: 成像透镜基本上由五个透镜组成，按照从物体侧开始的顺序：具有正折光力并且具有朝向物体侧的凸面的弯月形状的第一透镜; 具有双凹形状的第二透镜; 第三透镜，其具有正的折光力并且具有朝向像侧的凸面的弯月形状; 具有朝向图像侧的凸面的弯液面形状的第四透镜; 以及具有负屈光力并具有朝向物体侧的凹面的第五透镜。