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Optical imaging system, image capturing module and electronic device

An optical imaging system, image-side technology, applied in optics, optical components, instruments, etc., can solve the problems of large aperture of the front camera, limited area of ​​the display screen, occupying part of the screen area, etc., to improve the screen ratio and reduce assembly. Sensitivity, the effect of improving image quality

Pending Publication Date: 2021-02-05
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of realizing this application, the inventor found that the following problems existed in the prior art: the front camera of most current electronic products has a relatively large aperture, which would occupy part of the entire screen area, so that the area of ​​the display screen is limited. The camera is made into a notch to increase the display area, but it is still impossible to realize the full screen effect of the mobile phone equipped with the front camera

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
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no. 1 example

[0145] Please refer to image 3 , the optical imaging system 10 of the first embodiment includes a first lens L1 with positive refractive power, a stop STO, a second lens L2 with positive refractive power, and a third lens with negative refractive power from the object side to the image side L3, a fourth lens L4 with positive refractive power, a fifth lens L5 with negative refractive power, and an infrared filter L6.

[0146] Wherein, 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 concave at the near optical axis; the object side S4 of the second lens L2 is convex at the near optical axis, The image side S5 of the second lens L2 is convex at the near optical axis; the object side S6 of the third lens L3 is concave at the near optical axis, and the image side S7 of the third lens L3 is concave at the near optical axis; The object side S8 of the lens L4 is concave at the near optical axis, the image side S9 of...

no. 2 example

[0159] Please refer to Figure 5 , the optical imaging system 20 of the second embodiment includes a first lens L1 with positive refractive power, a stop STO, a second lens L2 with positive refractive power, and a third lens with negative refractive power from the object side to the image side L3, a fourth lens L4 with positive refractive power, a fifth lens L5 with negative refractive power, and an infrared filter L6.

[0160] Wherein, 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 concave at the near optical axis; the object side S4 of the second lens L2 is convex at the near optical axis, The image side S5 of the second lens L2 is concave at the near optical axis; the object side S6 of the third lens L3 is convex at the near optical axis, and the image side S7 of the third lens L3 is concave at the near optical axis; The object side S8 of the lens L4 is concave at the near optical axis, the image side S...

no. 3 example

[0171] Please refer to Figure 7 The optical imaging system 30 of the third embodiment includes a first lens L1 with positive refractive power, a stop STO, a second lens L2 with positive refractive power, and a third lens with negative refractive power from the object side to the image side L3, a fourth lens L4 with positive refractive power, a fifth lens L5 with negative refractive power, and an infrared filter L6.

[0172] Wherein, 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 concave at the near optical axis; the object side S4 of the second lens L2 is convex at the near optical axis, The image side S5 of the second lens L2 is concave at the near optical axis; the object side S6 of the third lens L3 is convex at the near optical axis, and the image side S7 of the third lens L3 is concave at the near optical axis; The object side S8 of the lens L4 is concave at the near optical axis, the image side S9 o...

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Abstract

The invention provides an optical imaging system, an image capturing module and an electronic device. The optical imaging system includes a first lens element with positive refractive power, a secondlens element with 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,wherein both the object-side surface and the image-side surface of the fifth lens element are aspheric; the optical imaging system satisfies the following relational expression that: 1.2<f3 / f<4.2, wherein f3 is the effective focal length of the third lens, and f is the effective focal length of the optical imaging system. According to the optical imaging system, the refractive power and the surface type of each lens are reasonably configured, and on the basis of the realization of large aperture and high resolution, the total length of the optical imaging system and the aperture of the head ofa camera lens can be shortened, the miniaturization of the camera lens is realized, a screen-to-body ratio can be improved, and a full-screen effect is realized.

Description

technical field [0001] The present application relates to optical imaging technology, in particular to an optical imaging system, an imaging module and an electronic device. Background technique [0002] In the past ten years, the manufacturing technology of electronic products such as smartphones, tablets, and cameras has developed rapidly, and their applications have become more and more popular, showing a diversified development trend. Among them, smartphones, tablets, etc. equipped with lenses Electronic products are also becoming more and more thin, portable and miniaturized. [0003] To a certain extent, the thickness of the lens determines the thickness of the entire electronic product, so reducing the thickness of the lens has become the main way to make electronic products thinner and lighter. In the process of realizing this application, the inventor found that the following problems existed in the prior art: the front camera of most current electronic products ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045
Inventor 华露杨健李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD