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Optical system, image capturing module and electronic device

An optical system and optical axis technology, applied in the field of photography, can solve the problems that the size of the optical system needs to be reduced, and it is difficult to meet the miniaturization design of electronic equipment, etc.

Active Publication Date: 2021-06-18
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the current optical system still needs to be reduced, and it is difficult to meet the needs of miniaturization design of electronic equipment

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0088] See figure 1 and figure 2 , figure 1 It is a schematic structural diagram of the optical system 100 in the first embodiment. The optical system 100 includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a lens L2 with positive refractive power from the object side to the image side. Third lens L3, fourth lens L4 with negative refractive power, stop STO, fifth lens L5 with positive refractive power, sixth lens L6 with negative refractive power, seventh lens L7 with positive refractive power, and The eighth lens L8 with negative refractive power. figure 2 From left to right are the graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the first embodiment, where the reference wavelength of the astigmatism graph and distortion graph is 555nm, and other embodiments are the same.

[0089] The object side S1 of the first lens L1 is a convex surface at the near optical ax...

no. 2 example

[0131] See image 3 and Figure 4 , image 3 It is a schematic structural diagram of the optical system 100 in the second embodiment. The optical system 100 includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a lens L2 with positive refractive power from the object side to the image side. Third lens L3, fourth lens L4 with negative refractive power, stop STO, fifth lens L5 with positive refractive power, sixth lens L6 with negative refractive power, seventh lens L7 with positive refractive power, and The eighth lens L8 with positive refractive power. Figure 4 From left to right are the graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the second embodiment.

[0132] The object side S1 of the first lens L1 is a convex surface at the near optical axis 110 and a convex surface at the circumference;

[0133] The image side S2 of the first lens L1 is concave at the near...

no. 3 example

[0162] See Figure 5 and Figure 6 , Figure 5 It is a structural schematic diagram of the optical system 100 in the third embodiment. The optical system 100 includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a lens L2 with positive refractive power from the object side to the image side. Third lens L3, stop STO, fourth lens L4 with positive refractive power, fifth lens L5 with negative refractive power, sixth lens L6 with negative refractive power, seventh lens L7 with positive refractive power, and The eighth lens L8 with negative refractive power. Figure 6 From left to right are the graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the third embodiment.

[0163] The object side S1 of the first lens L1 is a convex surface at the near optical axis 110 and a convex surface at the circumference;

[0164] The image side S2 of the first lens L1 is concave at the near...

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Abstract

The invention relates to an optical system, an image capturing module and an electronic device. The optical system includes a first lens element with negative refractive power and an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region; a second lens element with negative refractive power and an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region; a third lens element with positive refractive power and an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof; a fourth lens element with refractive power and an image-side surface being convex in a paraxial region thereof. a fifth lens element with refractive power; a sixth lens element with refractive power; a seventh lens element with positive refractive power and an image-side surface being convex in a paraxial region thereof; and an eighth lens element with refractive power and an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region. The conditions that TTL / (ImgH * 2) is greater than or equal to 1.5 and less than or equal to 1.7, and FOV is greater than or equal to 150 degrees and less than or equal to 170 degrees are satisfied. The optical system can realize miniaturization design and wide-angle characteristics.

Description

technical field [0001] The invention relates to the field of imaging, in particular to an optical system, an imaging module and electronic equipment. Background technique [0002] With the rapid development of camera technology, more and more electronic devices such as smartphones, tablets, and e-readers are equipped with optical systems to realize camera functions. Users have higher and higher requirements for the optical system, not only requiring the optical system to have good imaging quality, but also requiring the optical system to have a small size to meet the needs of miniaturized design of electronic equipment and improve the user experience of electronic equipment. However, the size of the current optical system still needs to be reduced, and it is difficult to meet the requirements of miniaturization design of electronic equipment. Contents of the invention [0003] Based on this, it is necessary to provide an optical system, imaging module and electronic equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00H04N5/225H04M1/02
CPCG02B13/0045H04M1/0264H04N23/55
Inventor 刘彬彬邹海荣李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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