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Optical system, image capturing module and electronic device

An optical system, optical axis technology, applied in the field of photography, can solve the problem that the correction ability needs to be improved

Pending Publication Date: 2022-01-07
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aberration correction capability of the current camera lens needs to be improved

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

[0105] See figure 1 and figure 2 , figure 1 It is a structural schematic diagram of the optical system 100 in the first embodiment. The optical system 100 includes an aperture STO, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, and a second lens L2 with negative refractive power 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, the sixth lens L6 with negative refractive power, the seventh lens L7 with positive refractive power, and the fifth lens L5 with negative refractive power. The eighth lens L8 with negative refractive power. figure 2 From left to right are the graphs of the longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the first embodiment, where the reference wavelength of the astigmatism graph and the distortion graph is 587.5618nm, ...

no. 2 example

[0153] See image 3 and Figure 4 , image 3It is a schematic structural diagram of the optical system 100 in the second embodiment. The optical system 100 includes an aperture STO, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, and a second lens L2 with negative refractive power 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, the sixth lens L6 with negative refractive power, the seventh lens L7 with positive refractive power, and the fifth lens L5 with negative refractive power. The eighth lens L8 with negative 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.

[0154] The object side S1 of the first lens L1 is a convex surface at the near optical axis 110 ...

no. 3 example

[0183] See Figure 5 and Image 6 , Figure 5 It is a structural schematic diagram of the optical system 100 in the third embodiment. The optical system 100 includes an aperture STO, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, and a second lens L2 with negative refractive power from the object side to the image side. The third lens L3 with positive refractive power, the fourth lens L4 with positive refractive power, the fifth lens L5 with negative refractive power, the sixth lens L6 with positive refractive power, the seventh lens L7 with positive refractive power, and the fifth lens L5 with negative refractive power. The eighth lens L8 with negative refractive power. Image 6 From left to right are the graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the third embodiment.

[0184] The object side S1 of the first lens L1 is a convex surface at the near optical axis 110 a...

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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 positive refractive power, a second lens element with negative refractive power, a third lens element with refractive power having an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region, a fourth lens element with positive refractive power, a fifth lens element with negative refractive power, a sixth lens element with refractive power having an object-side surface being convex in a paraxial region and being concave in a circumferential region, a seventh lens element with positive refractive power having an image-side surface being concave in a paraxial region, and an eighth lens element with negative refractive power. The optical system satisfies 1< / =R14 / f7< / =6. The optical system is good in aberration correction capability and good in imaging quality.

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 electronic devices such as smart phones, tablet computers, and e-readers, the camera function has become a standard function of electronic devices, and the industry's requirements for camera performance of electronic devices are also getting higher and higher. Among them, the aberration correction capability of the camera lens is an important indicator of camera performance, which greatly affects the user experience. Good aberration correction capability can make the camera lens have good imaging quality, and meet the user's demand for high imaging quality. However, the aberration correction capability of the current camera lens still needs to be improved. Contents of the invention [0003] Based on this, it is necessary to provide an optical system, an imaging mod...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/0045G02B13/006G03B30/00
Inventor 邹金华李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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