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Optical image capturing system, image capturing module and electronic device

An optical imaging system and module technology, applied in optics, optical components, instruments, etc., can solve problems such as difficult to maintain high-definition imaging of the optical imaging system

Pending Publication Date: 2021-03-16
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 the present application, the inventors found that there are at least the following problems in the prior art: the existing periscope optical imaging system is difficult to achieve high-definition imaging while maintaining the long focal length of the optical imaging system

Method used

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

Examples

Experimental program
Comparison scheme
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no. 1 example

[0127] See figure 1 , in the optical imaging system 10 in this embodiment, the optical path deflection element 30, the diaphragm STO, the first lens L1 with positive refractive power, the second lens L2 with negative refractive power, and the second lens L2 with negative refractive power are included from the object side to the image side. The third lens L3 with positive refractive power, the fourth lens L4 with negative refractive power, the fifth lens L5 with negative refractive power, and the filter L6.

[0128] The materials of the first lens L1 , the second lens L2 , the third lens L3 , the fourth lens L4 and the fifth lens L5 are all plastic, and the material of the filter L6 is glass.

[0129] Understandably, in other embodiments, the materials of the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 may also all be glass, or the materials of the first lens L1, the One or more of the second lens L2, the third lens L3, the f...

no. 2 example

[0146] See image 3 , in the optical imaging system 10 in this embodiment, the optical path deflection element 30, the diaphragm STO, the first lens L1 with positive refractive power, the second lens L2 with negative refractive power, and the second lens L2 with negative refractive power are included from the object side to the image side. The third lens L3 with positive refractive power, the fourth lens L4 with negative refractive power, the fifth lens L5 with positive refractive power, and the filter L6.

[0147] The object side S1 of the first lens L1 is convex at the near optical axis, the image side S2 of the first lens L1 is convex at the near optical axis, the object side S3 of the second lens L2 is concave at the near optical axis, and the second lens L2 is concave at the near optical axis. The image side S4 of the lens L2 is concave at the near optical axis, the object side S5 of the third lens L3 is convex at the near optical axis, the image side S6 of the third lens...

no. 3 example

[0159] See Figure 5 , in the optical imaging system 10 in this embodiment, the optical path deflection element 30, the diaphragm STO, the first lens L1 with positive refractive power, the second lens L2 with negative refractive power, and the second lens L2 with negative refractive power are included from the object side to the image side. The third lens L3 with negative refractive power, the fourth lens L4 with positive refractive power, the fifth lens L5 with negative refractive power, and the filter L6.

[0160] The object side S1 of the first lens L1 is convex at the near optical axis, the image side S2 of the first lens L1 is convex at the near optical axis, the object side S3 of the second lens L2 is concave at the near optical axis, and the second lens L2 is concave at the near optical axis. The image side S4 of the lens L2 is concave at the near optical axis, the object side S5 of the third lens L3 is convex at the near optical axis, the image side S6 of the third len...

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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, wherein the object-side surface of the first lens element is convex in a paraxial region; a second lens element with refractive power; a third lens element withrefractive power; a fourth lens element with refractive power; and a fifth lens element with refractive power, wherein the object-side surface of the fifth lens element is concave in a paraxial region. The optical imaging system satisfies the following conditional expressions: 43 * f / (2 * ImgH)> 147, wherein f is the effective focal length of the optical imaging system, and ImgH is half of the image height corresponding to the maximum field angle of the optical imaging system. According to the optical imaging system, the focal length of the optical imaging system is increased while the microdesign is met, and the optical imaging system can be used for long-range shooting; and meanwhile, the optical imaging system can obtain the equivalent focal length of about 150 mm by meeting the conditional expression, so that the optical imaging system has the long-focus telephoto characteristic.

Description

technical field [0001] The present application relates to the technical field of optical imaging, in particular to an optical imaging system, an imaging module and an electronic device. Background technique [0002] With the wide application of electronic products such as mobile phones, tablet computers, drones, and computers in daily life, various electronic products are constantly being introduced. Among them, the improvement and innovation of the shooting effect of the periscope camera lens in electronic products has become one of the focuses of people's attention, and it has also become an important content of technological improvement. [0003] During the process of implementing the present application, the inventors found at least the following problems in the prior art: it is difficult for the existing periscope optical imaging system to realize high-definition imaging while maintaining the long focal length of the optical imaging system. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/0045
Inventor 谭怡翔刘秀李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD