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

Optical system, camera module and electronic equipment

An optical system and optical axis technology, applied in the field of optical imaging, can solve the problem of small optical total length imaging effect, etc.

Active Publication Date: 2022-07-12
JIANGXI JINGCHAO OPTICAL CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an optical system, a camera module and electronic equipment to solve the problem that the optical system in the prior art needs to have a smaller total optical length and a good imaging effect under the premise of a larger field of view. question

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, camera module and electronic equipment
  • Optical system, camera module and electronic equipment
  • Optical system, camera module and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0049] Please refer to figure 1 and figure 2 , the optical system of this embodiment includes sequentially from the object side to the image side along the optical axis direction:

[0050] The first lens L1 has negative refractive power. The object side S1 of the first lens L1 is concave at the near optical axis and convex near the circumference, and the image side S2 is concave at the near optical axis and near the circumference.

[0051] The second lens L2 has a positive refractive power. The object side S3 of the second lens L2 is convex at the near optical axis and near the circumference, and the image side S4 is concave at the near optical axis and near the circumference.

[0052] The third lens L3 has a positive refractive power. The object side S5 of the third lens L3 is convex at the near optical axis, concave near the circumference, and the image side S6 is convex at the near optical axis and near the circumference.

[0053] The fourth lens L4 has positive refracti...

no. 2 example

[0073] Please refer to image 3 and Figure 4 , the optical system of this embodiment includes sequentially from the object side to the image side along the optical axis direction:

[0074] The first lens L1 has negative refractive power. The object side S1 of the first lens L1 is concave at the near optical axis and convex near the circumference, and the image side S2 is concave at the near optical axis and near the circumference.

[0075] The second lens L2 has a positive refractive power. The object side S3 of the second lens L2 is convex at the near optical axis and near the circumference, and the image side S4 is concave at the near optical axis and near the circumference.

[0076] The third lens L3 has a positive refractive power. The object side S5 of the third lens L3 is convex at the near optical axis and near the circumference, and the image side S6 is convex at the near optical axis and near the circumference.

[0077] The fourth lens L4 has a positive refractive ...

no. 3 example

[0091] Please refer to Figure 5 and Image 6 , the optical system of this embodiment includes sequentially from the object side to the image side along the optical axis direction:

[0092] The first lens L1 has negative refractive power. The object side S1 of the first lens L1 is concave at the near optical axis and convex near the circumference, and the image side S2 is concave at the near optical axis and near the circumference.

[0093] The second lens L2 has a positive refractive power. The object side S3 of the second lens L2 is convex at the near optical axis and near the circumference, and the image side S4 is concave at the near optical axis and near the circumference.

[0094] The third lens L3 has a positive refractive power. The object side S5 of the third lens L3 is convex at the near optical axis and near the circumference, and the image side S6 is convex at the near optical axis and near the circumference.

[0095] The fourth lens L4 has positive refractive po...

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

An optical system, a camera module and an electronic device, the optical system sequentially comprising from an object side to an image side along an optical axis: first to seventh lenses having refractive power, the first lens having negative refractive power, the second lens, the third lens and the seventh lens having positive refractive power, the object side surface and the image side surface of the first lens, the image side surface of the second lens and the image side surface of the sixth lens are concave surfaces near the optical axis, the object side surface of the second lens, the image side surface of the third lens and the object side surface of the seventh lens are convex surfaces near the optical axis, and the image side surface of the fourth lens and the image side surface of the seventh lens are convex surfaces near the circumference. Through reasonable design of the surface type and the refractive power of each lens of the optical system, the optical system has the advantages of being beneficial to meeting the requirements of a large field angle, a small optical total length and a good imaging effect.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to an optical system, a camera module and an electronic device. Background technique [0002] In recent years, portable electronic products with photographic functions have shown a trend of becoming thinner and lighter. Therefore, the demand for optical lens systems to meet high imaging quality and miniaturization is also increasing. However, the first lens of the current optical system with a large field of view has a large volume, which in turn leads to a large overall volume of the optical system, a long total length of the optical system, and a small image surface, which is difficult to apply to thin and light electronic products. [0003] Therefore, how to achieve a small optical total length and a good imaging effect on the premise of ensuring that the optical system has a large field of view has become one of the problems that must be solved in the industr...

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 Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06H04N5/225
CPCG02B13/0015G02B13/0045G02B13/06G03B30/00H04N23/55H04N23/57
Inventor 党绪文李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com