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Optical system, camera module and electronic equipment

A technology of optical system and optical axis, applied in the direction of optics, optical components, instruments, etc.

Pending Publication Date: 2022-07-12
JIANGXI JINGCHAO OPTICAL CO LTD
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  • 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, camera module and electronic equipment, which solves the problem of having a long focal length and good imaging quality under the premise of a small lens size in the prior art

Method used

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

Examples

Experimental program
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Effect test

no. 1 example

[0052] 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:

[0053] The first lens L1 has a positive refractive power, the object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 is concave at the near optical axis.

[0054] 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 the image side S4 is concave at the near optical axis.

[0055] 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 the image side S6 is concave at the near optical axis.

[0056] The fourth lens L4 has a negative refractive power, the object side S7 of the fourth lens L4 is concave at the near optical axis, and the image side S8 is concave at the near optical axis.

[0057] The fifth lens ...

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 a positive refractive power, the object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 is concave at the near optical axis.

[0075] 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 the image side S4 is concave at the near optical axis.

[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 the image side S6 is concave at the near optical axis.

[0077] The fourth lens L4 has a negative refractive power, the object side S7 of the fourth lens L4 is concave at the near optical axis, and the image side S8 is concave at the near optical axis.

[0078] The fifth lens ...

no. 3 example

[0089] 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:

[0090] The first lens L1 has a positive refractive power, the object side S1 of the first lens L1 is convex at the near optical axis, and the image side S2 is convex at the near optical axis.

[0091] 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 the image side S4 is concave at the near optical axis.

[0092] 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 the image side S6 is concave at the near optical axis.

[0093] The fourth lens L4 has a negative refractive power, the object side S7 of the fourth lens L4 is concave at the near optical axis, and the image side S8 is concave at the near optical axis.

[0094] The fifth lens L...

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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: a first lens to a fifth lens having refractive power, the first lens and the fifth lens having positive refractive power, and a fourth lens having negative refractive power, the object side surfaces of the first lens, the second lens, the third lens and the fifth lens are convex surfaces near the optical axis, and the image side surface of the second lens and the object side surface of the fourth lens are concave surfaces near the optical axis. By reasonably designing the surface type and the refractive power of each lens of the optical system, the optical system has the characteristics of miniaturization, long focal length and good imaging quality.

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 overall length of the optical system with telephoto characteristics will be correspondingly longer, so that its focal length is limited by the thickness of electronic products. At the same time, when the optical system becomes telephoto, it is difficult to achieve good imaging quality, and the angle of view will also be reduced. dramatically decrease. [0003] Therefore, how to achieve the effect of long focal length and good imaging quality under the premise of reducing the size of the lens has become one of the proble...

Claims

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Application Information

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IPC IPC(8): G02B13/00
CPCG02B13/0015G02B13/0045G03B30/00
Inventor 邹金华
Owner JIANGXI JINGCHAO OPTICAL CO LTD