Camera lens and its module and terminal

Abstract

The invention provides a shooting lens and a module thereof, and a terminal. The lens successively comprises from an object side to an image side: a first lens with positive focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with focal power, a fifth lens with positive focal power, a sixth lens with focal power, wherein object side surface of the second lens is a convex surface, the image side surface of the fifth lens is a convex surface, and the part, which is near to an axis, of the image side surface of the sixth lens is a recessed surface. The shooting lens satisfies the following: 5.5<f1.2.3 / Dr1r6<10, wherein the f1.2.3 is the combination focal length of the first lens, the second lens and the third lens, and the Dr1r6 is the interval from the objet side surface of the first lens to the image side surface of the third lens on an optical axis. According to the invention, six plastic aspheric eyeglasses are employed, through different focal power distribution, it is ensured that under large-caliber configuration, the volume of the lens is effectively shortened, the influences of image differences are reduced, and the imaging quality of the lens is improved.

Description

technical field

[0001] The invention relates to an imaging optical system of a lens, in particular to an imaging lens system composed of six groups of lenses. Background technique

[0002] In recent years, with the development of chip technology such as CCD or CMOS, the pixel size of the chip is getting smaller and smaller, and the imaging quality requirements of the matching optical system are also getting higher and higher, making the camera lens gradually move towards the field of high pixel and miniaturization In order to meet this trend, optical lenses mounted on electronic products such as mobile phones and digital cameras are further required to have high resolution and other performance.

[0003] At present, the general high-pixel thin lens mainly adopts a five-element lens structure, as shown in the US patent No. , a second lens with negative power, a third lens with negative power, a fourth lens with positive power and a fifth lens with negative power. In a small...

Examples

Embodiment 1

[0073] The parameters of the camera lens in Example 1 are as follows: TTL=5.003; f1=4.373; f2=-10.633; f3=-37.031; f4=6.865; f5=2.536; f6=-1.726; f=4.251;

[0074] f1.2.3 / Dr1r6=5.930

[0075] T3.5 / TTL=0.334

[0076] SAG61 / CT6=-3.784

[0077] System parameters: 1 / 3" photosensitive device aperture value 2.05

[0078] Table 1

[0079] surface type

radius of curvature

thickness

Material

Effective caliber

Conic coefficient

sphere

endless

endless

sphere

endless

-0.3460

2.0736

Aspherical

1.7080

0.5408

1.544 / 56.1

2.1336

-0.0731

Aspherical

Aspherical

5.3321

6.2657

0.0614

0.2130

1

1.635 / 23.7

2.1415

2.1478

-54.2177

-49.7859

Aspherical

3.2195

0.1263

8

2.1411

0.3020

Aspherical

2.3343

0.2758

1.635 / 23.7

2.1709

-6.6575

Aspherical

2.0270

0.3873

8

2.2382

1.5324

Aspherical

10.5973 ...

Embodiment 2

[0085] Each parameter of camera lens in embodiment 2 is as follows:

[0086] TTL=4.022; f1=2.974; f2=-5.412; f3=-26.811; f4=5.851; f5=2.160; f6=-1.486; f=3.346;

[0087] f1.2.3 / Dr1r6=5.650

[0088] T3.5 / TTL=0.281

[0089] SAG61 / CT6=-3.154

[0090] System parameters: 1 / 4" photosensitive device aperture value 2.05

[0091] table 3

[0092] surface type

radius of curvature

thickness

Material

Effective caliber

Conic coefficient

sphere

endless

endless

sphere

endless

-0.2799

1.6320

Aspherical

1.3344

0.4935

1.544 / 56.11

1.6873

-0.2928

Aspherical

6.5034

0.0368

1.6719

-6.7573

Aspherical

9.3518

0.1996

1.635 / 23.78

1.6659

21.8315

Aspherical

2.5075

0.1130

1.6719

3.5516

Aspherical

1.6622

0.2030

1.635 / 23.78

1.6891

-5.5824

[0093] Aspherical

1.4432

0.2552

1.7509

1.3989...

Embodiment 3

[0099] The parameters of the camera lens in Example 3 are as follows: TTL=3.993; f1=3.785; f2=-6.325; f3=-20.054; f4=3.693; f5=2.268; f6=-1.482; f=3.219;

[0100] f1.2.3 / Dr1r6=9.487

[0101] T3.5 / TTL=0.309

[0102] SAG61 / CT6=-2.777

[0103] System parameters: 1 / 4" photosensitive device aperture value 2.05

[0104] table 5

[0105] surface type

radius of curvature

thickness

Material

Effective caliber

Conic coefficient

sphere

endless

endless

sphere

endless

-0.2256

1.5701

Aspherical

1.4780

0.4185

1.544 / 56.11

1.6183

-0.0943

Aspherical

4.6718

0.0921

1.6336

-24.6257

Aspherical

7.4401

0.2078

1.635 / 23.78

1.6429

-99.2317

Aspherical

2.5937

0.0933

1.7301

-1.8098

Aspherical

1.6733

0.2260

1.635 / 23.78

1.7480

-5.8101

Aspherical

1.4024

0.2326

1.8435

1.0453

Aspherical

...

technical field

[0001] The invention relates to an imaging optical system of a lens, in particular to an imaging lens system composed of six groups of lenses. Background technique

[0002] In recent years, with the development of chip technology such as CCD or CMOS, the pixel size of the chip is getting smaller and smaller, and the imaging quality requirements of the matching optical system are also getting higher and higher, making the camera lens gradually move towards the field of high pixel and miniaturization In order to meet this trend, optical lenses mounted on electronic products such as mobile phones and digital cameras are further required to have high resolution and other performance.

[0003] At present, the general high-pixel thin lens mainly adopts a five-element lens structure, as shown in the US patent No. , a second lens with negative power, a third lens with negative power, a fourth lens with positive power and a fifth lens with negative power. In a small...

Examples

Embodiment 1

[0073] The parameters of the camera lens in Example 1 are as follows: TTL=5.003; f1=4.373; f2=-10.633; f3=-37.031; f4=6.865; f5=2.536; f6=-1.726; f=4.251;

[0074] f1.2.3 / Dr1r6=5.930

[0075] T3.5 / TTL=0.334

[0076] SAG61 / CT6=-3.784

[0077] System parameters: 1 / 3" photosensitive device aperture value 2.05

[0078] Table 1

[0079] surface type

radius of curvature

thickness

Material

Effective caliber

Conic coefficient

sphere

endless

endless

sphere

endless

-0.3460

2.0736

Aspherical

1.7080

0.5408

1.544 / 56.1

2.1336

-0.0731

Aspherical

Aspherical

5.3321

6.2657

0.0614

0.2130

1

1.635 / 23.7

2.1415

2.1478

-54.2177

-49.7859

Aspherical

3.2195

0.1263

8

2.1411

0.3020

Aspherical

2.3343

0.2758

1.635 / 23.7

2.1709

-6.6575

Aspherical

2.0270

0.3873

8

2.2382

1.5324

Aspherical

10.5973 ...

Embodiment 2

[0085] Each parameter of camera lens in embodiment 2 is as follows:

[0086] TTL=4.022; f1=2.974; f2=-5.412; f3=-26.811; f4=5.851; f5=2.160; f6=-1.486; f=3.346;

[0087] f1.2.3 / Dr1r6=5.650

[0088] T3.5 / TTL=0.281

[0089] SAG61 / CT6=-3.154

[0090] System parameters: 1 / 4" photosensitive device aperture value 2.05

[0091] table 3

[0092] surface type

radius of curvature

thickness

Material

Effective caliber

Conic coefficient

sphere

endless

endless

sphere

endless

-0.2799

1.6320

Aspherical

1.3344

0.4935

1.544 / 56.11

1.6873

-0.2928

Aspherical

6.5034

0.0368

1.6719

-6.7573

Aspherical

9.3518

0.1996

1.635 / 23.78

1.6659

21.8315

Aspherical

2.5075

0.1130

1.6719

3.5516

Aspherical

1.6622

0.2030

1.635 / 23.78

1.6891

-5.5824

[0093] Aspherical

1.4432

0.2552

1.7509

1.3989...

Embodiment 3

[0099] The parameters of the camera lens in Example 3 are as follows: TTL=3.993; f1=3.785; f2=-6.325; f3=-20.054; f4=3.693; f5=2.268; f6=-1.482; f=3.219;

[0100] f1.2.3 / Dr1r6=9.487

[0101] T3.5 / TTL=0.309

[0102] SAG61 / CT6=-2.777

[0103] System parameters: 1 / 4" photosensitive device aperture value 2.05

[0104] table 5

[0105] surface type

radius of curvature

thickness

Material

Effective caliber

Conic coefficient

sphere

endless

endless

sphere

endless

-0.2256

1.5701

Aspherical

1.4780

0.4185

1.544 / 56.11

1.6183

-0.0943

Aspherical

4.6718

0.0921

1.6336

-24.6257

Aspherical

7.4401

0.2078

1.635 / 23.78

1.6429

-99.2317

Aspherical

2.5937

0.0933

1.7301

-1.8098

Aspherical

1.6733

0.2260

1.635 / 23.78

1.7480

-5.8101

Aspherical

1.4024

0.2326

1.8435

1.0453

Aspherical

...

Images