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camera lens

A camera lens and lens technology, applied in the field of photography, can solve problems such as insufficient resolution, difficulty in matching, and large distortion

Active Publication Date: 2017-11-24
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to meet the requirements of high pixel and large field of view, a general camera lens needs to be equipped with a large aperture to meet the requirements of illumination. It is difficult to meet the requirements of a high-pixel photosensitive chip, mainly due to insufficient resolution, large distortion and large main ray exit angle

Method used

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  • camera lens
  • camera lens
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Please combine Figure 1 to Figure 5 , in embodiment 1, camera lens satisfies the condition of table 1 and table 2 below:

[0100] Table 1

[0101] surface number

surface type

radius of curvature

thickness

Refractive index / Abbe number

Conic coefficient

OBJ

sphere

endless

500

--

--

STO

sphere

endless

-0.1210

--

--

S1

Aspherical

1.8947

0.5787

1.544 / 56.11

0.0727

S2

Aspherical

8.4586

0.3349

--

-42.9715

S3

Aspherical

-12.7036

0.2520

1.651 / 21.52

-99.0000

S4

Aspherical

-9.8228

0.0300

--

-0.1103

S5

Aspherical

4.2726

0.2205

1.651 / 21.52

-99.0000

S6

Aspherical

2.5357

0.1440

--

-22.4375

S7

Aspherical

-3.9771

0.9354

1.544 / 56.11

-31.0304

S8

Aspherical

-0.8409

0.0306

--

-3.4069

S9

Aspherical

8.7627

0.3486

1.651 / 21.52 ...

Embodiment 2

[0107] Please combine Figure 6 ~ Figure 10 , in embodiment 2, camera lens satisfies the condition of table 3 and table 4 below:

[0108] table 3

[0109] surface number

surface type

radius of curvature

thickness

Refractive index / Abbe number

Conic coefficient

OBJ

sphere

endless

endless

--

--

STO

sphere

endless

-0.1210

--

--

S1

Aspherical

1.9192

0.5462

1.544 / 56.11

-0.1289

S2

Aspherical

8.0800

0.2943

--

-47.1424

S3

Aspherical

-14.6666

0.2537

1.651 / 21.52

-99.0000

S4

Aspherical

-11.3886

0.0301

--

3.2443

S5

Aspherical

3.5686

0.2441

1.651 / 21.52

-96.2349

S6

Aspherical

2.5356

0.1548

--

-23.1074

S7

Aspherical

-3.2688

0.9103

1.544 / 56.11

-30.2595

S8

Aspherical

-0.7420

0.0300

--

-3.8153

S9

Aspherical

9.2058

0.2500

1.651 / ...

Embodiment 3

[0115] Please combine Figure 11 to Figure 15 , in embodiment 3, camera lens satisfies the condition of table 5 and table 6 below:

[0116] table 5

[0117] surface number

surface type

radius of curvature

thickness

Refractive index / Abbe number

Conic coefficient

OBJ

sphere

endless

endless

--

--

STO

sphere

endless

-0.1059

--

--

S1

Aspherical

1.9384

0.5668

1.544 / 56.11

-0.0931

S2

Aspherical

9.6741

0.3045

--

-48.5808

S3

Aspherical

-10.6421

0.2601

1.651 / 21.52

-98.8459

S4

Aspherical

-12.3260

0.0300

--

-0.6800

S5

Aspherical

3.4990

0.2500

1.651 / 21.52

-88.1053

S6

Aspherical

2.4804

0.1471

--

-23.7094

S7

Aspherical

-3.7643

0.9208

1.544 / 56.11

-32.5927

S8

Aspherical

-0.7406

0.0300

--

-3.7450

S9

Aspherical

8.4546

0.2426

1.6...

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Abstract

A camera lens is provided and includes: in sequence from an object side to an image side, a first lens having a positive refractive power; a second lens having a refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; a sixth lens having a negative refractive power. The camera lens satisfies the following relation: f / f6<−1.0; f / f4>1.5; in which, f denotes an effective focal length of the camera lens, f4 denotes an effective focal length of the fourth lens, f6 denotes an effective focal length of the sixth lens. The above-mentioned camera lens facilitates high resolution while improvement of field angle, and miniaturization of the camera lens.

Description

technical field [0001] The invention relates to the field of imaging, and more specifically, to a high-pixel and thin imaging lens. Background technique [0002] The photosensitive element of a general optical system is nothing more than a photosensitive coupling device (CCD) or a complementary metal oxide semiconductor element (CMOS). Camera lenses on electronic products such as cameras are also gradually developing in the fields of high pixel, miniaturization, and large field of view. [0003] In order to meet the requirements of high pixel and large field of view, a general camera lens needs to be equipped with a large aperture to meet the requirements of illumination. It is difficult to meet the requirements of a high-pixel photosensitive chip, which is mainly manifested in insufficient resolution, large distortion and large exit angle of the chief ray. Contents of the invention [0004] The embodiments of the present invention aim to solve at least one of the techni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B9/62G02B13/0045
Inventor 黄林戴付建
Owner ZHEJIANG SUNNY OPTICAL CO LTD