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Optical lens, camera module and electronic equipment

An optical lens and camera module technology, applied in optics, optical components, instruments, etc., can solve problems such as the inability to present clear imaging of long-distance details, low resolution of test cameras, and driving risks, etc. Design, improve resolution and depth of field range, improve the effect of imaging

Active Publication Date: 2020-12-18
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in related technologies, the resolution of the test camera is low, the depth of field is small, the presentation of long-distance details and the clear imaging of a large angle range cannot be satisfied at the same time, resulting in the inability to accurately judge the details of long-distance shooting in real time and make early warning or Unable to avoid obstacles with a large angle range, which may lead to driving risks

Method used

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  • Optical lens, camera module and electronic equipment
  • Optical lens, camera module and electronic equipment
  • Optical lens, camera module and electronic equipment

Examples

Experimental program
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no. 1 example

[0100]The structural diagram of the optical lens 100 disclosed in the first embodiment of the present application is as follows:figure 1 As shown, the optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6, which are sequentially arranged from the object side to the image side along the optical axis O. Infrared filter 70 and protective glass 80.

[0101]The first lens L1 has a negative refractive power and includes a first object side surface L10 and a first image side surface L12, and the second lens L2 has a positive refractive power and includes a second object side surface L20 and a second image side surface L22. The third lens L3 has a positive refractive power, and includes a third object side surface L30 and a third image side surface L32. The fourth lens L4 has a positive refractive power, and includes a fourth object-side surface L40 and a fourth image-side surface L42. The fifth lens L5 has a negati...

no. 2 example

[0122]Please refer toimage 3 ,image 3 This is a schematic diagram of the structure of the optical lens 100 according to the second embodiment of the present application. The optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and an infrared filter arranged in order from the object side to the image side along the optical axis O. Sheet 70 and protective glass 80.

[0123]It can be understood that the refractive power of each lens of the optical lens 100 in the second embodiment, the shape of the object side and the image side of each lens are consistent with those shown in the optical lens 100 of the first embodiment, and will not be repeated here. .

[0124]In the second embodiment, the ratios of the various relational expressions satisfied by the optical lens 100 can be referred to as shown in Table 4 below:

[0125]Table 4

[0126]

[0127]

[0128]Specifically, taking the focal length of the optical lens 100 f = 3.49 mm...

no. 3 example

[0138]Please refer toFigure 5 ,Figure 5 A schematic structural diagram of the optical lens 100 according to the third embodiment of the present application is shown. The optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and an infrared filter arranged in order from the object side to the image side along the optical axis O. Sheet 70 and protective glass 80.

[0139]It can be understood that the refractive power of each lens of the optical lens 100 in the third embodiment, the shape of the object side and the image side of each lens are consistent with those shown in the optical lens 100 of the first embodiment, and will not be repeated here. .

[0140]In the third embodiment, the ratios of the various relational expressions satisfied by the optical lens 100 can be seen in Table 7 below:

[0141]Table 7

[0142] Relation ratio f456 / f 3.17 f12 / f2 -2.11 Rs4 / f2 5.43 f4*f5 / (CT4-CT5) -7.16mm f / SAGs9 4.018 Rs12 / f6 -3....

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Abstract

An optical lens, a camera module and electronic equipment are disclosed, the optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object side to an image side along an optical axis, and the refractive power of the first lens to the sixth lens is negative, positive, positive, positive, negative, positive and negative, and the image side surface of the fourth lens is a convex surface near the optical axis. The object side surface of the fifth lens is a concave surface near the optical axis, the object side surface of the fifth lens and the image side surface of the fourth lens are glued to form a glued lens, and the optical lens satisfies 3.0 < f456 / f < 4.2. By adopting the scheme of the embodiment, the focal power distribution of the fourth lens, the fifth lens and the sixth lens can be reasonably controlled, on one hand, the incident light height of the light beam emitted out of the optical lens is favorably controlled, and the high-grade aberration of the optical lens and the outer diameter of the lens are reduced; and on the other hand, the influence of the field curvature generatedby the front lens group on the resolution can be corrected, thereby being beneficial to improving the resolution and depth-of-field range of the optical lens and improving the imaging effect.

Description

Technical field[0001]The present invention relates to the field of optical imaging technology, in particular to an optical lens, camera module and electronic equipment.Background technique[0002]With the development of the in-vehicle industry, the technical requirements for driving assistance cameras such as front-view, side-view, automatic cruise, driving recorder, and reversing image are getting higher and higher. The side-view camera is an on-board camera used to monitor the road conditions on the left and right sides of the car. It allows the driver to intuitively identify and monitor obstacles and pedestrians in the blind areas on the left and right sides of the car while the car is driving. When turning or U-turning in places (such as intersections, roadblocks, parking lots, etc.), turn on the side-view camera at any time to make judgments on the driving environment, and feed back to the central system of the car to make correct instructions to avoid driving accidents, while lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/006G02B13/18
Inventor 蔡雄宇兰宾利周芮
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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