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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 optical system is difficult to meet the miniaturization design of electronic equipment

Pending Publication Date: 2021-09-10
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Based on this, it is necessary to provide an optical system, imaging module and electronic equipment to solve the problem that the current optical system 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

[0081] See figure 1 with 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 positive refractive power, and a second lens L2 with positive 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 positive refractive power, the sixth lens L6 with positive refractive power, and the seventh lens L7 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.

[0082] The object side S1 of the first lens L1 is a convex surface at the n...

no. 2 example

[0122] See image 3 with Figure 4 , image 3 It 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 positive refractive power, and a second lens L2 with positive 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 positive refractive power, the sixth lens L6 with positive refractive power, and the seventh lens L7 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.

[0123] 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;

[0124] The image side S2 of the first lens L1 is conca...

no. 3 example

[0150] See Figure 5 with Image 6 , Figure 5 It is a structural schematic diagram of the optical system 100 in the third embodiment. The optical system 100 includes a diaphragm 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 negative refractive power, the fifth lens L5 with positive refractive power, the sixth lens L6 with positive refractive power, and the seventh lens L7 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.

[0151] 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;

[0152] The image side S2 of the first lens L1 is concave...

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Abstract

The invention relates to an optical system, an image capturing module and an electronic device. The optical system includes, in order from an object side to an image side along an optical axis: a first lens element with positive 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 second lens element with refractive power having an object-side surface being convex in a paraxial region thereof; a third lens element with refractive power; a fourth lens element with refractive power having an object-side surface being convex in a paraxial region and an image-side surface being concave in the optical axis; a fifth lens element with refractive power having an object-side surface being concave in a paraxial region thereof; a sixth lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof; a seventh lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof; |f(12) / f(67)| is less than or equal to 0.5; f(12) is the combined focal length of the first lens and the second lens, and f(67) is the combined focal length of the sixth lens and the seventh lens. The optical system can meet the requirement of miniaturization design.

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 and tablet computers, more and more electronic devices are equipped with imaging modules to realize the camera function. The imaging module mostly includes an optical system and a photosensitive element. The optical system is used to receive and adjust light so that the light is imaged on the photosensitive element. The optical system occupies a certain space in the electronic device and affects the volume of the electronic device. At the same time, people have higher and higher requirements for electronic equipment, not only requiring the electronic equipment to have a good camera function, but also hoping that the electronic equipment can be miniaturized, thereby reducing the volume of the electronic equipment and making it ea...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0015G02B13/0045G03B30/00
Inventor 刘彬彬邹海荣李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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