Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Optical system, lens module and electronic equipment

An optical system and lens technology, applied in optics, optical components, instruments, etc., can solve the problems of large telephoto lens size and low imaging resolution

Active Publication Date: 2021-10-29
JIANGXI JINGCHAO OPTICAL CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional telephoto lenses often have problems such as large size and low imaging clarity.

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

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

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

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

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

[0053] The fourth lens L4 has positive refractive power. The object s...

no. 2 example

[0072] Please refer to image 3 with Figure 4 , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0073] The first lens L1 has positive refractive power. The object side S1 of the first lens L1 is convex at the near optical axis and near the circumference; the image side S2 is concave at the near optical axis and convex near the circumference.

[0074] The second lens L2 has negative refractive power. The object side S3 of the second lens L2 is convex at the near optical axis and near the circumference; the image side S4 is concave at the near optical axis and near the circumference.

[0075] The third lens L3 has negative refractive power. The object side S5 of the third lens L3 is convex at the near optical axis and near the circumference; the image side S6 is concave at the near optical axis and near the circumference.

[0076] The fourth lens L4 has negative refractive power. The object ...

no. 3 example

[0088] Please refer to Figure 5 with Image 6 , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0089] The first lens L1 has positive refractive power. The object side S1 of the first lens L1 is convex at the near optical axis and near the circumference; the image side S2 is concave at the near optical axis and near the circumference.

[0090] The second lens L2 has positive refractive power. The object side S3 of the second lens L2 is convex at the near optical axis and near the circumference; the image side S4 is concave at the near optical axis and near the circumference.

[0091] The third lens L3 has negative refractive power. The object side S5 of the third lens L3 is convex at the near optical axis and near the circumference; the image side S6 is concave at the near optical axis and near the circumference.

[0092] The fourth lens L4 has positive refractive power. The object side S7...

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 invention discloses an optical system, a lens module and an electronic device. The optical system includes the following parts in order from an object side to an image side along an optical axis: first to sixth lens elements having refractive power, wherein the first lens element has positive refractive power, and the third lens element has negative refractive power; the object-side surfaces of the first to third lenses are convex in a paraxial region, and the image-side surfaces of the first to third lenses are concave in a paraxial region; the object-side surface of the fourth lens element and the image-side surface of the fifth lens element are both convex in a paraxial region, and the image-side surface of the sixth lens element is concave in a paraxial region. The optical system satisfies the following relational expressions: 1.7 < EFL / Imgh < 2; wherein the EFL is the effective focal length of the optical system, and the Imgh is the image height corresponding to the maximum field angle of the optical system. Through reasonable design of the surface type and the refractive power of the first to the sixth lenses, the optical system satisfies the relational expression, so the optical system can realize a large-image-surface and high-definition telephoto shooting function while satisfying the miniaturization design.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to an optical system, a lens module and electronic equipment. Background technique [0002] With the development of the vehicle industry, in recent years, the replacement cycle of electronic equipment has become shorter and shorter, and the shooting function has become more and more powerful, and the market has stricter requirements for a single type of lens. As consumers have diverse requirements for shooting environments, there are more and more types of lenses suitable for different shooting environments. Among them, the telephoto lens can obtain a shallower depth of field due to its longer focal length, so it can better handle the details of distant scenes and achieve the imaging effect of compressing the shooting distance. [0003] However, traditional telephoto lenses often have problems such as large size and low imaging clarity. Contents of the inventi...

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): G02B13/00G02B13/18
CPCG02B13/0015G02B13/0045G02B13/18G03B30/00
Inventor 张文燕杨健李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com