Optical system, lens module and electronic equipment

An optical system and lens technology, applied in optics, optical components, instruments, etc., can solve problems such as affecting the thickness of mobile devices

Active Publication Date: 2022-06-03
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the imaging quality of existing optical lenses, the method of increasing the number of lenses is often used to correct the aberration of the optical

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

Please refer to figure 1 and figure 2 , the optical system of this embodiment, from the object side to the image side sequentially includes:

The first lens L1 has a positive bending force, the object side S1 of the first lens L1 is convex at the near optical axis 101 , and the image side S2 is concave at the near optical axis 101 .

[0044] The second lens L2 has a negative bending force. The object side S3 of the second lens L2 is convex at the near optical axis 101 , and the image side S4 is concave at the near optical axis 101 .

[0045] The third lens L3 has a negative bending force. The object side S5 of the third lens L3 is convex at the near optical axis 101 , and the image side S6 is concave at the near optical axis 101 .

[0046] The fourth lens L4 has a positive bending force, the object side S7 of the fourth lens L4 is convex at the near optical axis 101 , and the image side S8 is convex at the near optical axis 101 .

[0047] The fifth lens L5 has a...

no. 2 example

[0059] The second lens L2 has a negative bending force. The object side S3 of the second lens L2 is convex at the near optical axis 101 , and the image side S4 is concave at the near optical axis 101 .

[0060] The third lens L3 has a positive bending force, the object side S5 of the third lens L3 is convex at the near optical axis 101 , and the image side S6 is concave at the near optical axis 101 .

[0061] The fourth lens L4 has a positive bending force, the object side S7 of the fourth lens L4 is concave at the near optical axis 101 , and the image side S8 is convex at the near optical axis 101 .

[0062] The fifth lens L5 has a negative bending force. The object side S9 of the fifth lens L5 is concave at the near optical axis 101 , and the image side S10 is convex at the near optical axis 101 .

[0063] The sixth lens L6 has a positive bending force, the object side S11 of the sixth lens L6 is convex at the near optical axis 101 , and the image side S12 is conca...

no. 3 example

[0070] The second lens L2 has a negative bending force. The object side S3 of the second lens L2 is convex at the near optical axis 101 , and the image side S4 is concave at the near optical axis 101 .

[0071] The third lens L3 has a negative bending force. The object side S5 of the third lens L3 is convex at the near optical axis 101 , and the image side S6 is concave at the near optical axis 101 .

[0072] The fourth lens L4 has a positive bending force, the object side S7 of the fourth lens L4 is concave at the near optical axis 101 , and the image side S8 is convex at the near optical axis 101 .

[0073] The fifth lens L5 has a negative bending force. The object side S9 of the fifth lens L5 is concave at the near optical axis 101 , and the image side S10 is convex at the near optical axis 101 .

[0074] The sixth lens L6 has a positive bending force, the object side S11 of the sixth lens L6 is convex at the near optical axis 101 , and the image side S12 is concav...

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PUM

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Abstract

An optical system, a lens module and an electronic device, the optical system comprising seven lenses with meandering forces, in which a first lens, a fourth lens and a sixth lens have positive meandering forces, a second lens and a seventh lens have negative meandering forces, and a third lens and a fifth lens have meandering forces; the optical system meets the relational expression: 6.2 mmlt; imgh2/flt; 7.4 mm in thickness; wherein f is the effective focal length of the optical system, and Imgh is half of the image height corresponding to the maximum field angle of the optical system; according to the optical system, the lens module and the electronic equipment provided by the embodiment of the invention, the characteristics of miniaturization, large image plane and high pixel can be met, and high-quality imaging can be realized.

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 an electronic device. Background technique [0002] With the development of science and technology, the market has higher and higher requirements for the size and imaging quality of mobile optical lenses, which also requires optical lenses to have a miniaturized design while taking into account performance. In order to improve the imaging quality of existing optical lenses, the aberration of the optical lens is often corrected by increasing the number of lenses. However, the increase in the number of lenses is also accompanied by an increase in the size of the optical lens, which affects the thickness of the mobile device. Therefore, how to configure the parameters such as bending force and surface shape of each lens of the optical lens, so as to meet the requirements of miniaturization, large image area and high imaging qu...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18G02B13/14
CPCG02B13/0015G02B13/0045G02B13/008G03B30/00
Inventor 龙鑫灿李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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