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Optical system, image capturing module, electronic equipment and carrier

A technology of optical system and optical axis, which is applied in the field of photography and can solve problems such as image quality degradation

Active Publication Date: 2022-01-28
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, electronic equipment and vehicle for the problem that the current vehicle-mounted lens easily leads to a decrease in imaging quality when realizing wide-angle characteristics.

Method used

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  • Optical system, image capturing module, electronic equipment and carrier
  • Optical system, image capturing module, electronic equipment and carrier
  • Optical system, image capturing module, electronic equipment and carrier

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0078] 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 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a positive refractive power lens from the object side to the image side. A third lens L3, a diaphragm STO, a fourth lens L4 having a positive refractive power, a fifth lens L5 having a negative refractive power, and a sixth lens L6 having a positive refractive power, wherein the fourth lens L4 is cemented with the fifth lens L5 , an inflection point exists on the object side surface S11 of the sixth lens L6. figure 2 From left to right are graphs of longitudinal spherical aberration, astigmatism, and distortion of the optical system 100 in the first embodiment, wherein the reference wavelength of the astigmatism graph and the distortion graph is 546.0740 nm, and other embodiments are the same.

[00...

no. 2 example

[0111] 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 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a positive refractive power lens from the object side to the image side. The third lens L3, the diaphragm STO, the fourth lens L4 with positive refractive power, the fifth lens L5 with negative refractive power, and the sixth lens L6 with positive refractive power, wherein the fourth lens L4 is cemented with the fifth lens L5 , an inflection point exists on the object side surface S11 of the sixth lens L6. Figure 4 From left to right are graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the second embodiment.

[0112] The object side S1 of the first lens L1 is convex, and the image side S2 is concave;

[0113] The object side S3 of the second lens L...

no. 3 example

[0131] See Figure 5 and Image 6 , Figure 5 It is a schematic structural diagram of the optical system 100 in the third embodiment. The optical system 100 sequentially includes a first lens L1 with negative refractive power, a second lens L2 with negative refractive power, and a positive refractive power lens from the object side to the image side. The third lens L3, the diaphragm STO, the fourth lens L4 with positive refractive power, the fifth lens L5 with negative refractive power, and the sixth lens L6 with positive refractive power, wherein the fourth lens L4 is cemented with the fifth lens L5 , an inflection point exists on the object side surface S11 of the sixth lens L6. Image 6 From left to right are graphs of longitudinal spherical aberration, astigmatism and distortion of the optical system 100 in the third embodiment.

[0132] The object side S1 of the first lens L1 is convex, and the image side S2 is concave;

[0133] The object side S3 of the second lens L...

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Abstract

The invention relates to an optical system, an image capturing module, electronic equipment and a carrier. The optical system includes: a first 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 second lens 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 with positive refractive power having an object-side surface being convex in a paraxial region and an image-side surface being convex in a paraxial region; a fourth lens with positive refractive power having an object-side surface being convex in a paraxial region and an image-side surface being convex in a paraxial region; a fifth lens with negative refractive power having an object-side surface being concave in a paraxial region; a sixth lens with positive refractive power having an object-side surface being convex in a paraxial region and an image-side surface being convex in a paraxial region; the optical system satisfies 7 < = R11 / SAG11 < = 13. The optical system has good imaging quality while achieving wide-angle characteristics.

Description

technical field [0001] The invention relates to the field of imaging, in particular to an optical system, an imaging module, an electronic device and a carrier. Background technique [0002] In recent years, with the continuous improvement of the industry's requirements for road traffic safety and automobile driving safety, the application of surround view cameras in automobile assisted driving systems has become more and more extensive. The surround-view camera stitches together the bird's-eye view of the car in all directions by combining multiple wide-angle car lenses, so that the driver can see the images around the car, so as to effectively avoid accidents such as reversing rolling, scraping bumpers and wheel hubs, and at the same time Surround view cameras can also identify parking lane signs, curbs and nearby vehicles, greatly improving the safety of the car. However, when the current vehicle lens achieves the wide-angle feature, the image quality is easily degraded,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0045G02B13/18G02B13/06G02B13/006G03B30/00
Inventor 乐宇明朱志鹏其他发明人请求不公开姓名
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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