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Optical system, lens module and electronic equipment

An optical system and lens technology, applied in optics, optical components, instruments, etc., can solve the problem of not being able to meet a large field of view and high imaging quality at the same time

Active Publication Date: 2021-08-20
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing five-element lens cannot meet the requirements of larger field of view and high imaging quality at the same time

Method used

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  • 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

[0043] Please refer to Figure 1a and Figure 1b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0044] The first lens L1 has a negative refracting force, the object side S1 of the first lens L1 is convex at the near optical axis, the image side S2 is concave at the near optical axis; the object side S1 of the first lens L1 is convex at the circumference , as the side S2 is concave at the circumference.

[0045] The second lens L2 has a positive refracting power. The object side S3 of the second lens L2 is convex at the near optical axis, and the image side S4 is convex at the near optical axis; the object side S3 of the second lens L2 is convex at the circumference. , like the side S4 is convex at the circumference.

[0046]The third lens L3 has a negative refracting power, the object side S5 of the third lens L3 is convex at the near optical axis, the image side S6 is concave at the nea...

no. 2 example

[0061] Please refer to Figure 2a and Figure 2b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0062] The first lens L1 has a negative refracting force, the object side S1 of the first lens L1 is convex at the near optical axis, the image side S2 is concave at the near optical axis; the object side S1 of the first lens L1 is convex at the circumference , as the side S2 is concave at the circumference.

[0063] The second lens L2 has a positive refracting power. The object side S3 of the second lens L2 is convex at the near optical axis, and the image side S4 is convex at the near optical axis; the object side S3 of the second lens L2 is convex at the circumference. , like the side S4 is convex at the circumference.

[0064] The third lens L3 has a negative refracting power, the object side S5 of the third lens L3 is convex at the near optical axis, the image side S6 is concave at the n...

no. 3 example

[0078] Please refer to Figure 3a and Figure 3b , the optical system of this embodiment includes in sequence from the object side to the image side along the optical axis direction:

[0079] The first lens L1 has a negative refracting force, the object side S1 of the first lens L1 is convex at the near optical axis, the image side S2 is concave at the near optical axis; the object side S1 of the first lens L1 is convex at the circumference , as the side S2 is concave at the circumference.

[0080] The second lens L2 has a positive refracting power. The object side S3 of the second lens L2 is convex at the near optical axis, and the image side S4 is convex at the near optical axis; the object side S3 of the second lens L2 is convex at the circumference. , like the side S4 is convex at the circumference.

[0081] The third lens L3 has a negative refracting force, the object side S1 of the third lens L3 is convex at the near optical axis, the image side S2 is concave at the n...

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Abstract

The invention provides an optical system, a lens module and an electronic device. The optical system includes, in order from an object side to an image side in an optical axis direction, a first lens element with negative refractive power, a second lens element with positive refractive power, a third lens element with negative refractive power, a fourth lens element with positive refractive power, and a fifth lens element with negative refractive power; the optical system meets the conditional expression that 0.5 < D1 / ImgH < 0.73, wherein D1 is the optical effective radius of the object side face of the first lens, and ImgH is half of the image height corresponding to the maximum field angle of the optical system. The five-piece type optical system can meet the requirements of a large field angle and high imaging quality at the same time.

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] Today, with the rapid development of technology, consumers have higher and higher requirements for the image quality of mobile electronic products. In order to meet the high-end imaging system and achieve wide-angle shooting effects, the five-piece lens can be used as one of the accessories for various types of camera-capable portable electronic devices. However, the existing five-element lens cannot meet the requirements of larger field of view and high imaging quality at the same time. Contents of the invention [0003] The purpose of the present application is to provide an optical system, a lens module and an electronic device for solving the above technical problems. [0004] The invention provides an optical system, which sequentially comprises from the object si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06G02B13/18
CPCG02B13/0015G02B13/0045G02B13/06
Inventor 谢晗刘彬彬李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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