Patent ID: 9690073
Date: 2017-06-27
CPC Classifications: G02B

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 positive refractive power; a second lens having refractive power; a third lens having refractive power; and an image plane; an aperture and an image sensor on the image plane, wherein the optical image capturing system consists of the three lenses with refractive power; at least two of the three lenses each has at least an inflection point on at least a surface thereof; the third lens has an object-side surface, which faces the object side, and an image-side surface, which faces the image side, and both the object-side surface and the image-side surface of the third lens are aspheric surfaces; wherein the optical image capturing system satisfies: where f1, f2, and f3 are focal lengths of the first lens to the third lens, respectively; f is a focal length of the optical image capturing system; where InS is a distance in parallel with the optical axis between the aperture and the image plane; and HIF is a distance perpendicular to the optical axis between any inflection point and the optical axis, HOI is a height for an image formation of the optical image capturing system, HEP is an entrance pupil diameter of the optical image capturing system; and HOS is a distance in parallel with the optical axis from an object-side surface of the first lens to the image plane.