US 2016/0103300 A1Published application

Optical image capturing system

AssigneeAbility Opto-Electronics Technology Co.Ltd.

InventorsNAI-YUAN TANG, YEONG-MING CHANG

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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 comprises a first lens element with positive refractive power having a convex object-side surface; a second lens, a third lens, a fourth lens and a fifth lens elements with refractive powers and both of an image-side and an object-side surfaces of the four lens elements are aspheric; and a sixth lens with negative refractive power and both of an image-side and an object-side surfaces of the four lens elements are aspheric, and at least one of the image-side surface and object-side surface of the six lens elements has one inflection point. Each of the six lens elements may have a refractive power. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.

Claims25

Dependent claims

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

a first lens element with a positive refractive power,
a second lens element with a refractive power;
a third lens element with a refractive power;
a fourth lens element with a refractive power;
a fifth lens element with a refractive power;
a sixth lens element with a negative refractive power and at least one of the image-side and the object-side surfaces of the sixth lens element having at least one inflection point;
and
an image plane;
wherein the optical image capturing system comprises six lens elements with refractive powers, at least one of the second through fifth lens elements has a positive refractive power, the object-side surface and the 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, half of a maximal view angle of the optical image capturing system is HAF, a distance from the object-side surface of the first lens element to the image plane is HOS, and the following relation is satisfied:
0≦|f/f1|≦2;
1.2≦f/HEP≦2.8;
0.4≦|tan(HAF)|≦1.5;
and 0.5≦HOS/f≦2.5.

10 more elements

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

a first lens element with a positive refractive power;
a second lens element with a negative refractive power;
a third lens element with a refractive power;
a fourth lens element with a refractive power;
a fifth lens element with a refractive power;
a sixth lens element with a negative refractive power and at least one of the image-side and the object-side surfaces of the sixth lens element having at least one inflection point;
and
an image plane;
wherein the optical image capturing system comprises six lens elements with refractive powers, at least one of the third through fifth lens elements has a positive refractive power, the object-side surface and the image-side surface of the first lens element are aspheric, the object-side surface and the 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, half of a maximal view angle of the optical image capturing system is HAF, a distance from the object-side surface of the first lens element to the image plane is HOS, TV distortion and optical distortion for image formation in the optical image capturing system are TDT and ODT, respectively, and the following relation is satisfied:
0≦|f/f1|≦2;
1.2≦f/HEP≦2.8;
0.4≦|tan(HAF)|≦1.5;
0.5≦HOS/f≦2.5;
|TDT|<1.5%;
and |ODT|≦2.5%.

12 more elements

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

a first lens element with a positive refractive power having a convex object-side surface adjacent to an optical axis;
a second lens element with a negative refractive power;
a third lens element with a refractive power;
a fourth lens element with a refractive power;
a fifth lens element with a positive refractive power;
a sixth lens element with a negative refractive power and at least one of the image-side and the object-side surfaces of the sixth lens element having at least one inflection point;
and
an image plane;
wherein the optical image capturing system comprises six lens elements with refractive powers, the object-side surface and the image-side surface of the first lens element are aspheric, the object-side surface and the 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, half of a maximal view angle of the optical image capturing system is HAF, a distance from the object-side surface of the first lens element to the image plane is HOS, optical distortion and TV distortion for image formation in the optical image capturing system are ODT and TDT, respectively, and the following relation is satisfied:
0≦|f/f1|≦2;
1.2≦f/HEP≦2.8;
0.4≦|tan(HAF)|≦1.5;
0.5≦HOS/f≦2.5;
|TDT|<1.5%;
and |ODT|≦2.5%.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/584,522Filed 29 Dec 2014
Priority: TW 1031351028 Oct 2014
Published: 14 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G02B 13/0045
Having at least one aspherical surface: having five or more lenses
G02B 9/62
Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -: having six…
G02B 27/0025
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00: for optical correction, e.g. distorsion,…
G02B
Optical elements, systems or apparatus