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Optical imaging system, image capturing module and electronic device

An optical imaging system and optical axis technology, applied in optics, optical components, instruments, etc., to achieve the effects of reducing assembly difficulty, good image quality, and increasing focal length

Inactive Publication Date: 2020-10-02
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of implementing this application, the inventors found that there are at least the following problems in the prior art: the existing optical imaging system is difficult to achieve high-definition imaging while maintaining the miniaturization of the optical imaging system

Method used

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  • Optical imaging system, image capturing module and electronic device
  • Optical imaging system, image capturing module and electronic device
  • Optical imaging system, image capturing module and electronic device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0139] Please refer to figure 1 with figure 2 The optical imaging system 10 of the first embodiment includes a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with negative refractive power, and a third lens L3 with negative refractive power from the object side to the image side. The fourth lens L4 having a refractive power, the fifth lens L5 having a positive refractive power, the sixth lens L6 having a positive refractive power, and the seventh lens L7 having a negative refractive power.

[0140] The object side S1 of the first lens L1 is convex at the optical axis, and the image side S2 is concave at the optical axis; the object side S3 of the second lens L2 is convex at the optical axis, and the image side S4 is concave at the optical axis; The object side S5 of the third lens L3 is convex at the optical axis, and the image side S6 is concave at the optical axis; the object side S7 of the fourth lens L4 is c...

no. 2 example

[0152] Please refer to image 3 with Figure 4 The optical imaging system 10 of the second embodiment includes a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, and a third lens L3 with negative refractive power from the object side to the image side. The fourth lens L4 with refractive power, the fifth lens L5 with positive refractive power, the sixth lens L6 with negative refractive power, and the seventh lens L7 with negative refractive power.

[0153] The object side S1 of the first lens L1 is convex at the optical axis, and the image side S2 is concave at the optical axis; the object side S3 of the second lens L2 is convex at the optical axis, and the image side S4 is concave at the optical axis; The object side S5 of the third lens L3 is convex at the optical axis, and the image side S6 is concave at the optical axis; the object side S7 of the fourth lens L4 is concave at the o...

no. 3 example

[0163] Please refer to Figure 5 with Image 6 The optical imaging system 10 of the third embodiment includes a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, and a third lens L3 with negative refractive power from the object side to the image side. The fourth lens L4 with refractive power, the fifth lens L5 with positive refractive power, the sixth lens L6 with negative refractive power, and the seventh lens L7 with positive refractive power.

[0164] The object side S1 of the first lens L1 is a convex surface at the optical axis, and the image side S2 is a convex surface at the optical axis; the object side S3 of the second lens L2 is concave at the optical axis, and the image side S4 is concave at the optical axis; The object side S5 of the third lens L3 is concave at the optical axis, and the image side S6 is convex at the optical axis; the object side S7 of the fourth lens L4 ...

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Abstract

The invention discloses an optical imaging system, an image capturing module and an electronic device. The optical imaging system includes, in order from an object side to an image side, a first lenselement with positive refractive power having a convex object-side surface at an optical axis, a second lens element with refractive power, a third lens element with refractive power, a fourth lens element with refractive power, a fifth lens element with refractive power having a convex object-side surface at the optical axis and a concave image-side surface at the optical axis, a sixth lens element with refractive power having a concave object-side surface at the optical axis, a seventh lens element with refractive power having an image-side surface being convex at the circumference. The optical imaging system satisfies: CT56 / TTL > 0.34, wherein CT56 is the distance between the image-side surface of the fifth lens and the object-side surface of the sixth lens on the optical axis, and TTLis the distance between the object-side surface of the first lens and the image-side surface of the optical imaging system on the optical axis. The optical imaging system can achieve high pixels and good image quality while meeting the micro design.

Description

technical field [0001] The invention relates to optical imaging technology, in particular to an optical imaging system, an imaging module and an electronic device. Background technique [0002] With the widespread application of electronic products such as mobile phones, tablet computers, drones, and computers in daily life, various technological improvements have been introduced. Among them, the improvement and innovation of the shooting effect of the camera lens in electronic products has become one of the focuses of people's attention, and at the same time it has become an important content of technological improvement. , Even under dark light conditions, the ability to take pictures with clear picture quality has become a key factor for modern people to choose what kind of electronic products. Therefore, the miniaturization and performance improvement of the optical system design have become the key factors for the current camera to improve the shooting quality. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 谭怡翔刘秀李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD