公开(公告)号：US20040141240A1

公开(公告)日：2004-07-22

申请号：US10686765

申请日：2003-10-17

申请人： Milestone Co., Ltd. and Satoshi Do

发明人： Satoshi Do

IPC分类号： G02B003/02 ,  G02B013/18

CPC分类号： G02B13/003 ,  G02B3/04 ,  G02B9/08 ,  G02B13/18

摘要： A lens for image pickup is provided in which various aberrations are corrected satisfactorily, the optical length is at maximum approximately 6 mm, and moreover a sufficient back focus is secured. This lens for image pickup comprises a first lens, an aperture diaphragm, and a second lens, positioned in this order from the object side toward the image side. The first lens is a resin lens with a meniscus shape, with the convex surface facing the object side, and having positive refractive power. The second lens is a resin lens with a meniscus shape, with the convex surface facing the image side, and having positive refractive power.

摘要翻译： 提供了一种用于图像拾取的透镜，其中各种像差被令人满意地校正，光学长度最大为约6mm，并且还确保了足够的后焦点。 用于图像拾取的该透镜包括从物体侧朝向像侧以该顺序定位的第一透镜，孔径光阑和第二透镜。 第一透镜是具有弯月面形状的树脂透镜，凸面朝向物体侧，并且具有正的折光力。 第二透镜是具有弯月面形状的树脂透镜，其凸面朝向像侧，并且具有正的折光力。