| 摘要 |
An optical image capturing system, from an object side to an image side, comprises a first, second, third, fourth, fifth, and sixth lens elements. The first through fifth lens elements have refractive power and both of an object-side surface and an image-side surface of the fifth lens elements are aspheric. The sixth lens with negative refractive power may have a concave image-side surface. Both of the image-side surface and the object-side surface of the six lens elements are aspheric and at least one of the two surfaces has inflection points. Each of the six lens elements may have refractive power. When specific conditions are satisfied, the optical image capturing system can have a large aperture value and a better optical path adjusting ability to acquire better imaging quality. |
| 主权项 |
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; a third lens element with refractive power; a fourth lens element with refractive power; a fifth lens element with refractive power; a sixth lens element with refractive power; and an image plane; wherein the optical image capturing system comprises the six lens elements with refractive power, at least one of the first through sixth lens elements has positive refractive power, an object-side surface and an image-side surface of the sixth lens element are aspheric, focal lengths of the first through sixth lens elements are f1, f2, f3, f4, f5, and f6, respectively, 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 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 sixth lens element on an optical axis is InTL, a sum of an absolute value of each distance in parallel with the optical axis from a maximum effective diameter position to an axial point on an object-side surface of each of the sixth lens elements is InRSO, a sum of an absolute value of each distance in parallel with the optical axis from a maximum effective diameter position to an axial point on an image-side surface of each of the sixth lens elements is InRSI, a sum of InRSO and InRSI is Σ|InRS|, and the following relation is satisfied: 1.0≦f/HEP≦6.0, 0.5≦HOS/f≦3.0 and 0<Σ|InRS|/InTL≦5. |
