Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical system for imaging device

A technology of optical system and camera device, which is applied in optics, optical components, instruments, etc., can solve the problems of increasing the overall length of the optical system and increasing the size of the sensor, achieving high resolution, suppressing aberrations, and reducing the overall length Effect

Active Publication Date: 2019-06-07
NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the size of the sensor becomes larger, it is impossible to achieve the desired performance with fewer lenses. If the number of lenses increases, although the performance can be improved, it will cause the problem that the overall length of the optical system will become longer.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical system for imaging device
  • Optical system for imaging device
  • Optical system for imaging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] The following [Table 1] shows numerical examples of the optical system of the first embodiment of the present invention. In the first embodiment, according to figure 1 and figure 2 The lenses in the sequence are arranged in the first lens (L 1 ) to sixth lens (L 6 ), the face number refers to figure 1 facets in each lens shown.

[0111] 【Table 1】

[0112] face number

Radius of curvature (R)

Thickness or distance (t)

Refractive index (Nd)

Abbe number (Vd)

Remark

＊2

2.45130

0.55121

1.651

21.5

first lens

3

2.26647

0.66894

1.6031

60

second lens

＊4

-13.07018

0.04391

＊5

9.18656

0.40927

1.651

21.5

third lens

＊6

2.65467

0.43222

＊7

-30.56135

0.61355

1.651

21.5

fourth lens

＊8

-8.21411

0.58150

＊9

-3.42129

0.70050

1.6418

22.4

fifth lens

＊10

-4.92107

0.03000...

Embodiment 2

[0125] [Table 4] below shows numerical examples of the optical system of the second embodiment of the present invention. In the second embodiment, according to figure 1 and figure 2 The lenses in the sequence are arranged in the first lens (L 1 ) to sixth lens (L 6 ), the face number refers to figure 1 facets in each lens shown.

[0126] 【Table 4】

[0127] face number

Radius of curvature (R)

Thickness or distance (t)

Refractive index (Nd)

Abbe number (Vd)

Remark

＊2

2.45127

0.65996

1.652334

39.6

first lens

3

2.10541

0.62918

1.6031

60

second lens

＊4

-13.06540

0.04274

＊5

9.19315

0.416

1.651

21.5

third lens

＊6

2.65734

0.42444

＊7

-31.92699

0.57505

1.651

21.5

fourth lens

＊8

-8.73528

0.58866

＊9

-3.47400

0.64777

1.6418

22.4

fifth lens

＊10

-4.89426

0.05338

...

Embodiment 3

[0140] [Table 7] below shows numerical examples of the optical system of the third embodiment of the present invention. In the third embodiment, according to figure 1 and figure 2 The lenses in the sequence are arranged in the first lens (L 1) to sixth lens (L 6 ), and the face number refers to figure 1 facets in each lens shown.

[0141] 【Table 7】

[0142] face number

Radius of curvature (R)

Thickness or distance (t)

Refractive index (Nd)

Abbe number (Vd)

Remark

＊2

2.44204

0.74483

1.652334

39.6

first lens

3

1.79248

0.70063

1.6031

60

second lens

＊4

-13.20820

0.03561

＊5

9.15659

0.29608

1.651

21.5

third lens

＊6

2.72199

0.48220

＊7

-26.59895

0.50251

1.651

21.5

fourth lens

＊8

-7.98767

0.62636

＊9

-3.32008

0.54567

1.6418

22.4

fifth lens

＊10

-5.13185

0.03000

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to an optical system for an imaging device, which includes a first lens group and a second lens group, the first lens group and the second lens group are arranged in sequence from the side of the scene to an imaging plate that can be imaged, and the The first lens group includes: a first lens, which has a positive refractive index and is placed on the scene side, and the surface on the imaging side is convex toward the surface of the scene and concave on the surface facing the imaging side; and a second lens, which has a positive The refractive index is placed on the imaging side, and the surface of the imaging side facing the scene and the surface facing the imaging side are convex, wherein the first lens and the second lens have a positive refractive index as a whole and are attached to each other combine.

Description

technical field [0001] The invention relates to an optical system for an imaging device, in particular to a compact optical system for an imaging device that can not only clarify objects in a scene, but also reduce the overall size. Background technique [0002] It is used in camera devices on digital camera devices such as digital cameras, surveillance cameras, PC cameras, mobile phone cameras, etc. The resolution of the captured image is determined by the sensor on the optical system. [0003] In the optical system, the overall performance of the optical system can be improved by increasing the number of lenses, but it will cause the overall length of the optical system to become longer, making it difficult to miniaturize the product. [0004] In particular, high-pixel-level optical systems consist of multiple lenses. In a high-pixel-level optical system, the size of the sensor used in the imaging device will become larger, and the difference in pixel size will be caused ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18
CPCG02B13/0045
Inventor 张东赫朴成在
Owner NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD