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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 problems such as poor shooting quality

Pending Publication Date: 2022-04-12
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, an imaging module and an electronic device for the poor shooting quality of current camera lenses in low-light environments.

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 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 a first lens L1 with positive refractive power, an aperture STO, 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 positive refractive power, and the sixth lens L6 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 near optical axis 110 and a convex surface at the circ...

no. 2 example

[0122] See image 3 and Figure 4 , image 3 It is a structural schematic diagram of the optical system 100 in the second embodiment. The optical system 100 includes a first lens L1 with positive refractive power, a stop STO, 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 positive refractive power, and the sixth lens L6 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 concave at the near optical axis 110 and convex at the circumfe...

no. 3 example

[0149] 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 positive refractive power, a stop STO, 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 positive refractive power, and the sixth lens L6 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.

[0150] 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;

[0151] The image side S2 of the first lens L1 is concave at the near optical axis 110 and convex at the circumfe...

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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 negative 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 third lens element with positive refractive power; a fourth lens element with refractive power; a fifth lens element with refractive power; and a sixth 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, the optical system meets the condition that f / FNO is larger than or equal to 5.5 mm and smaller than or equal to 6.2 mm. According to the optical system, the characteristic of large aperture can be obtained, and good imaging quality can be achieved in a weak light environment.

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, tablet computers, drones, computers, and e-readers are equipped with camera lenses to realize the camera function. At the same time, the imaging quality of the camera lens in the electronic equipment determines the product competitiveness of the electronic equipment, so the improvement of the imaging quality of the camera lens has become one of the focuses of the industry. Among them, the imaging quality of the camera lens in low-light environments such as night scenes and rainy days greatly affects the user's shooting experience. However, the current camera lenses have poor shooting quality in low-light environments. Contents of the invention [0003] Based on this, it is necessary to provide...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/18
Inventor 徐标李明
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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