Patent ID: 9746644
Date: 2017-08-29
CPC Classifications: G02B,G03B

Claim:
1. An optical image capturing system, in order along an optical axis from an object side to an image side, comprising: a first lens having refractive power; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having refractive power; a seventh lens having refractive power; and an image plane; wherein the optical image capturing system consists of the seven lenses with refractive power, and at least one lens among the first lens to the seventh lens is made of glass; a maximum height for image formation perpendicular to the optical axis on the image plane is denoted as HOI; at least one lens among the first lens to the seventh lens has positive refractive power; each lens among the first lens to the seventh lens has an object-side surface, which faces the object side, and an image-side surface, which faces the image side; wherein the optical image capturing system satisfies: where f1, f2, f3, f4, f5, f6, and f7 are focal lengths of the first lens to the seventh lens, respectively; f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HOS is a distance in parallel with the optical axis from the object-side surface of the first lens to the image plane; InTL is a distance in parallel with the optical axis from the object-side surface of the first lens to the image-side surface of the seventh lens; for any surface of any lens, HAF is a half of a view angle of the optical image capturing system, ARE is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.