Optical image capturing system

An optical image capturing system, in order along an optical axis 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;
• an image plane;
• a first positioning element comprising a holder, wherein the holder is in a hollow shape and opaque, and comprises a cylinder and a basement connected with each other;
• the cylinder is configured to accommodate the first to sixth lens elements;
• the basement is between the sixth lens element and the image plane, an outer periphery of the basement is greater than an outer periphery of the cylinder;
• a maximum value of the minimum side length of the basement perpendicular to the optical axis is denoted by PhiD;
• wherein the optical image capturing system comprises six lens elements with refractive powers, focal lengths of the first lens element to the sixth lens element are denoted by f1, f2, f3, f4, f5 and f6, a focal length of the optical image capturing system is denoted by f, an entrance pupil diameter of the optical image capturing system is denoted by HEP, a distance on the optical axis from an object-side surface of the first lens element to the image plane is denoted by HOS, a distance on the optical axis from the object-side surface of the first lens element to an image-side surface of the sixth lens element is denoted by InTL, a length of the outline curve of a half of an entrance pupil diameter (HEP) of any surface of a single lens element refers to a length of outline curve of the half of the entrance pupil diameter (HEP) from an axial point on the surface of the lens element to a coordinate point of perpendicular height with a distance of the half of the entrance pupil diameter from the optical axis on the surface along the outline of the surface of the lens element and is denoted as ARE, wherein the optical image capturing system satisfies:
• 1.0≤f/HEP≤10;
• 0.5≤HOS/f≤30;
• 0 mm<PhiD≤16 mm;
• and 0.1≤2(ARE/HEP)≤2.0;
• wherein the refractive powers of the first lens element to the sixth lens element are −+−++−, +−+++−, +−+−++, +−+−+− or ++−+−+ in sequence;
• wherein the entrance pupil diameter HEP is smaller than or substantially equal to diameters of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element.

An optical image capturing system, in order along an optical axis 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;
• an image plane;
• a first positioning element comprising a holder, wherein the holder is in a hollow shape and opaque, and comprises a cylinder and a basement connected with each other, and the cylinder is configured to accommodate the six lens elements;
• the basement is between the sixth lens element and the image plane;
• an outer periphery of the basement is greater than an outer periphery of the cylinder;
• and a maximum value of the minimum side length of the basement perpendicular to the optical axis denoted by PhiD;
• and
• a second positioning element accommodated in the holder and comprising a positioning part and a connection part, wherein the positioning part is in a hollow shape and directly contacts and accommodates any of the six lens elements to arrange the six lens elements on the optical axis;
• the connection part is disposed outside the positioning part and directly contacts an inner periphery of the cylinder, and a maximum outer diameter of the connection part perpendicular to the surface of the optical axis is denoted by PhiC;
• wherein the optical image capturing system comprises six lens elements with refractive powers, focal lengths of the first lens element to the sixth lens element are denoted by f1, f2, f3, f4, f5 and f6, a focal length of the optical image capturing system is denoted by f, an entrance pupil diameter of the optical image capturing system is denoted by HEP, a distance on the optical axis from an object-side surface of the first lens element to the image plane is denoted by HOS, a distance on the optical axis from the object-side surface of the first lens element to an image-side surface of the sixth lens element is denoted by InTL, a maximum height for image formation perpendicular to the optical axis on the image plane is denoted as HOI, a maximum effective diameter of the image-side surface of the sixth lens element is denoted by PhiA6, a length of outline curve of a half of a pupil diameter (HEP) of any surface of a single lens element refers to a length of outline curve of the half of the entrance pupil diameter (HEP) from an axial point on the surface of the lens element to a coordinate point of perpendicular height with a distance of the half of the entrance pupil diameter from the optical axis on the surface along the outline of the surface of the lens element and is denoted as ARE, wherein the optical image capturing system satisfies:
• 1.0≤f/HEP≤10;
• 0.5≤HOS/f≤30;
• PhiC<PhiD;
• 0 mm<PhiD≤16 mm;
• and 0.1≤2(ARE/HEP)≤2.0;
• wherein the refractive powers of the first lens element to the sixth lens element are −+−++−, +−+++−, +−+−++, +−+−+− or ++−+−+ in sequence;
• wherein the entrance pupil diameter HEP is smaller than or substantially equal to diameters of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element.