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US 9,958,646 B2Granted
Optical image capturing system
AssigneeAbility Opto-Electronics Technology Co., Ltd.
InventorsChien-Hsun Lai, Yao-Wei Liu, Yeong-Ming Chang
Life of this patent
Estimating the term…
Abstract
A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In order from an object side to an image side, the optical lens along the optical axis includes 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 and a sixth lens with refractive power. At least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.
Claims24
An optical image capturing system, from an object side to an image side, comprising:
- a first lens element with positive refractive power;
- a second lens element with negative refractive power;
- a third lens element with negative refractive power;
- a fourth lens element with positive refractive power;
- a fifth lens element with positive refractive power;
- a sixth lens element with negative refractive power;
- and
- an image plane;
- wherein the optical image capturing system consists of six lens elements with refractive power, a maximum height for image formation on the image plane perpendicular to the optical axis in the optical image capturing system is denoted by HOI, at least two lens elements among the first through sixth lens elements respectively have at least one inflection point on at least one surface thereof, 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 on an optical axis from an axial point on an object-side surface of the first lens element to an axial point on the image plane is HOS, a half of a maximum view angle of the optical image capturing system is HAF, thicknesses in parallel with an optical axis of the first through sixth lens elements at height ½ HEP respectively are ETP1, ETP2, ETP3, ETP4, ETP5 and ETP6, a sum of ETP1 to ETP6 described above is SETP, thicknesses of the first through sixth lens elements on the optical axis respectively are TP1, TP2, TP3, TP4, TP5 and TP6, a sum of TP1 to TP6 described above is STP, and the following relations are satisfied:
- 1.0≤f/HEP≤2.2, 0.5≤HOS/f≤3.0 and 0.5≤SETP/STP<1, and
- wherein the following relation is satisfied:
- 0.5≤HOS/HOI≤1.6.
9 more elements
An optical image capturing system, from an object side to an image side, comprising:
- a first lens element with positive refractive power;
- a second lens element with negative refractive power;
- a third lens element with negative refractive power;
- a fourth lens element with positive refractive power;
- a fifth lens element with positive refractive power;
- a sixth lens element with negative refractive power;
- and
- an image plane;
- wherein the optical image capturing system consists of six lens elements with refractive power, a maximum height for image formation on the image plane perpendicular to the optical axis in the optical image capturing system is denoted by HOI, at least one lens element among the first through sixth lens element has at least two inflection points on at least one surface thereof, 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 on an optical axis from an axial point on an object-side surface of the first lens element to an axial point on the image plane is HOS, a half of a maximum view angle of the optical image capturing system is HAF, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height ½ HEP to the image plane is ETL, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height ½ HEP to a coordinate point on the image-side surface of the sixth lens element at height ½ HEP is EIN, and the following relations are satisfied:
- 1.0≤f/HEP≤2.2, 0.5≤HOS/HOI≤1.6, 0.5≤HOS/f≤3.0 and 0.2≤EIN/ETL<1.
7 more elements
An optical image capturing system, from an object side to an image side, comprising:
- a first lens element with positive refractive power;
- a second lens element with positive refractive power;
- a third lens element with negative refractive power;
- a fourth lens element with positive refractive power;
- a fifth lens element with positive refractive power;
- a sixth lens element with negative refractive power, and
- an image plane;
- wherein the optical image capturing system consists of six lens elements with refractive power, a maximum height for image formation on the image plane perpendicular to the optical axis in the optical image capturing system is denoted by HOI, and at least three lens elements among the first through sixth lens elements respectively have at least one inflection point on at least one surface thereof, a focal length of the optical image capturing system is f, an entrance pupil diameter of the optical image capturing system is HEP, a half of maximum view angle of the optical image capturing system is HAF, a distance on an optical axis from an axial point on an object-side surface of the first lens element to an axial point on the image plane is HOS, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height ½ HEP to the image plane is ETL, a horizontal distance in parallel with the optical axis from a coordinate point on the object-side surface of the first lens element at height ½ HEP to a coordinate point on the image-side surface of the sixth lens element at height ½ HEP is EIN, and the following relations are satisfied:
- 1.0≤f/HEP≤2.2, 0.5≤HOS/f≤1.6, 0.5≤HOS/HOI≤1.6 and 0.2≤EIN/ETL<1.
6 more elements
Dependencies are inferred from the claim text.