Patent ID: 9645354
Date: 2017-05-09
CPC Classifications: G02B

Claim:
1. An optical image capturing system, from an object side to an image side, comprising: a first lens element with refractive power; a second lens element with refractive power; and an image plane; wherein the optical image capturing system consists of two lens elements with refractive power, at least one of the two lens elements has positive refractive power, focal lengths of the two lens elements are f1 and f2, a focal length of the optical image capturing system is f, an entrance pupil diameter of the optical image capturing system is HEP, a distance on an optical axis from an object-side surface of the first lens element to the image plane is HOS, a distance from the object-side surface of the first lens element to the image-side surface of the second lens element on an optical axis is InTL, a length of outline curve from an axial point on any surface of any one of the two lens elements to a coordinate point of vertical height with a distance of a half of the entrance pupil diameter from the optical axis on the surface along an outline of the surface is denoted as ARE; the following relations are satisfied: 1.2≦f/HEP≦10.0, 0.5≦HOS/f≦3.0, 0<InTL/HOS<0.9, and 1≦2(ARE/HEP)≦1.5.