Optical image capturing system, image capturing device and mobile terminal,申请号US201314064213-传众专利搜索

Optical image capturing system, image capturing device and mobile terminal

申请公布号：US9250420(B2)

申请号：US201314064213

申请日期：2013.10.28

申请公布日期：2016.02.02

申请人：

LARGAN PRECISION CO., LTD.

发明人：Hsu Po-Lun;Lin Cheng-Chen;Liao Lin-Yao;Chen Wei-Yu

分类号：G02B13/18;G02B9/60;G02B13/00

主分类号：G02B13/18

代理机构：

CKC & Partners Co., Ltd.

代理人：CKC & Partners Co., Ltd.

地址：Taichung TW

摘要：An optical image capturing system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with refractive power has a convex object-side surface in a paraxial region thereof and a concave image-side surface in a paraxial region thereof. The second lens element has positive refractive power. The third lens element with negative refractive power has a concave image-side surface in a paraxial region thereof. The fourth lens element with positive refractive power has a convex image-side surface in a paraxial region thereof. The fifth lens element with negative refractive power has a concave image-side surface in a paraxial region thereof, wherein the surfaces thereof are aspheric. The optical image capturing system has a total of five lens elements with refractive power.

主权项：1. An optical image capturing system comprising, in order from an object side to an image side: a first lens element having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof; a second lens element having positive refractive power; a third lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof; a fourth lens element with positive refractive power having an image-side surface being convex in a paraxial region thereof; and a fifth lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof, wherein both of an object-side surface and the image-side surface of the fifth lens element are aspheric, and the image-side surface of the fifth lens element has at least one inflection point; wherein the optical image capturing system has a total of five lens elements, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a focal length of the optical image capturing system is f, a focal length of the second lens element is f2, a focal length of the fourth lens element is f4, a focal length of the fifth lens element is f5, an axial distance between the first lens element and the second lens element is T12, an axial distance between the second lens element and the third lens element is T23, an axial distance between the third lens element and the fourth lens element is T34, an axial distance between the fourth lens element and the fifth lens element is T45, and the following conditions are satisfied: 1.0<f/f4+|f/f5|<2.0;2.0<V4/V5<3.5;0<f2/f4<1.20; and1.05<T34/(T12+T23+T45)<4.0.