Optical image capturing system

An optical image capturing system, from an object side to an image side, comprising:

• a first lens with refractive power;
• a second lens with refractive power;
• a third lens with refractive power;
• a fourth lens with refractive power;
• a fifth lens with refractive power;
• a sixth lens with refractive power;
• a first image plane, which is an image plane specifically for visible light and perpendicular to an optical axis, and a through focus modulation transfer rate (MTF) of central field of view of the first image plane having a maximum value at a first spatial frequency of 55 cycles/mm;
• and
• a second image plane, which is an image plane specifically for infrared light and perpendicular to the optical axis, and the through focus modulation transfer rate (MTF) of central field of view of the second image plane having a maximum value at the first spatial frequency of 55 cycles/mm;
• wherein the optical image capturing system has six lenses with refractive powers, the optical image capturing system has a maximum image height HOI on the first image plane, at least one lens among the first lens to the sixth lens is made of glass, at least one lens among the first lens to the sixth lens has positive refractive power, focal lengths of the six lenses are respectively expressed as f1, f2, f3, f4, f5 and f6, a focal length of the optical image capturing system is expressed as f, an entrance pupil diameter of the optical image capturing system is expressed as HEP, there is a distance HOS on the optical axis from the object side of the first lens to the first image plane, there is a distance InTL on the optical axis from the object side of the first lens to the image side of the sixth lens, a half maximum angle of view of the optical image capturing system is expressed as HAF, a distance on the optical axis between the first image plane and the second image plane is expressed as FS, a horizontal distance in parallel to the optical axis between a coordinate point at a height of ½ HEP on the object side of the first lens and the first image plane is expressed as ETL, a horizontal distance in parallel to the optical axis between a first coordinate point at a height of ½ HEP on the image side of the sixth lens and the coordinate point at a height of ½ HEP on the object side of the first lens is expressed as EIN, the optical image capturing system meets the following conditions:
• 1≤f/HEP≤10;
• 0 deg<HAF≤150 deg;
• 0.2≤EIN/ETL<1;
• |FS|≤10 μm and 1≤HOS/HOI≤10.

An optical image capturing system, from an object side to an image side, comprising:

• a first lens with refractive power;
• a second lens with refractive power,
• a third lens with refractive power;
• a fourth lens with refractive power;
• a fifth lens with refractive power;
• a sixth lens with refractive power;
• a first average image plane, which is an image plane specifically for visible light and perpendicular to an optical axis, and the first average image plane is disposed at the average position of the defocusing positions, where through focus modulation transfer rates (values of MTF) of the visible light at central field of view, 0.3 field of view, and 0.7 field of view of the optical image capturing system are at their respective maximum at a first spatial frequency of 55 cycles/mm;
• and
• a second average image plane, which is an image plane specifically for infrared light and perpendicular to the optical axis and the second average image plane is disposed at the average position of the defocusing positions, where through focus modulation transfer rates (values of MTF) of the infrared light at central field of view, 0.3 field of view, and 0.7 field of view of the optical image capturing system are at their respective maximum at the first spatial frequency of 55 cycles/mm;
• wherein the optical image capturing system has six lenses with refractive powers, at least one lens among the first lens to the six lens is made of glass, the optical image capturing system has a maximum image height HOI on the first image plane, focal lengths of the six lenses are respectively expressed as f1, f2, f3, f4, f5 and f6, a focal length of the optical image capturing system is expressed as f, an entrance pupil diameter of the optical image capturing system is expressed as HEP, a half maximum angle of view of the optical image capturing system is expressed as HAF, there is a distance HOS on the optical axis from an object side of the first lens to the first image plane, there is a distance InTL on the optical axis from the object side of the first lens to the image side of the sixth lens, a distance on the optical axis between the first average image plane and the second average image plane is expressed as AFS, thicknesses of the first lens through the sixth lens at a height of ½ HEP and in parallel to the optical axis are respectively expressed as ETP1, ETP2, ETP3, ETP4, ETP5 and ETP6, a sum of ETP1 to ETP6 is expressed as SETP, thicknesses of the first lens through the sixth lens on the optical axis are respectively expressed as TP1, TP2, TP3, TP4, TP5 and TP6, a sum of TP1 to TP6 is expressed as STP, the optical image capturing system meets the following conditions:
• 1.0≤f/HEP≤10.0;
• 0 deg<HAF≤150 deg;
• 0.5≤SETP/STP<1;
• |AFS|≤15 μm and 1≤HOS/HOI≤7.