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Optical lens, camera module, electronic equipment and automobile

A technology of optical lens and camera module, which is applied in optics, optical components, instruments, etc., can solve the problems of small monitoring area and small field of view, and achieve the goal of reducing field curvature, large field of view, and reducing edge aberration Effect

Active Publication Date: 2022-01-14
JIANGXI JINGCHAO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the field of view of the vehicle-mounted optical lens in the related art is small, resulting in a small monitoring area

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0076] Such as 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 diaphragm 102, a fifth lens L5, The sixth lens L6, the seventh lens L7 and the filter L8. Among them, regarding the material, refractive power and surface shape at the optical axis of the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, and the seventh lens L7 Reference may be made to the description of the above specific implementation manners, and details are not repeated here.

[0077] Specifically, with the effective focal length f=1.448mm of the optical lens 100, the aperture size FNO=2.05 of the optical lens 100, the field of view FOV=184deg of the optical lens 100, the total optical length of the optical lens 100 TTL=14.5mm is taken as an example, and other parameters of the optical lens 100 are given in Table 1 below. Wherein, the elements along the optical axis o of the...

no. 2 example

[0090] Please refer to image 3 , image 3 It is a schematic structural diagram of the optical lens 100 according to the second embodiment of the present application, and shows the optical paths of the paraxial ray λ1 and the marginal ray λ2. The optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a diaphragm 102, a fifth lens L5, and a sixth lens arranged in sequence along the optical axis o from the object side to the image side. L6, seventh lens L7 and filter L8. Among them, regarding the material, refractive power and surface shape at the optical axis of the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, and the seventh lens L7 Reference may be made to the description of the above specific implementation manners, and details are not repeated here.

[0091] In the second embodiment, with the effective focal length F=1.454mm of the optical lens 100, the aperture si...

no. 3 example

[0100] Please refer to Figure 5 , Figure 5 A schematic structural diagram of the optical lens 100 according to the third embodiment of the present application is shown, and the optical paths of the paraxial ray λ1 and the marginal ray λ2 are shown. The optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a diaphragm 102, a fifth lens L5, and a sixth lens L6 arranged in sequence from the object side to the image side along the optical axis o , the seventh lens L7 and the filter L8. Among them, regarding the material, refractive power and surface shape at the optical axis of the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, and the seventh lens L7 Reference may be made to the description of the above specific implementation manners, and details are not repeated here.

[0101] In the third embodiment, with the effective focal length F=1.316mm of the optical lens 100, ...

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Abstract

The invention discloses an optical lens, a camera module, an electronic equipment and an automobile, the optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from an object side to an image side along an optical axis, and the first lens, the second lens and the third lens all have negative refractive power. Both the fourth lens and the fifth lens have positive refractive power, the sixth lens has negative refractive power, the seventh lens has positive refractive power, and the optical lens meets the following relational expressions: 120 deg / mm < FOV / f < 145 deg / mm; wherein FOV is the maximum field angle of the optical lens, and f is the effective focal length of the optical lens. By controlling the ratio of the field angle to the focal length, a larger field angle can be obtained, so that when the optical lens is applied to an automobile, a larger monitoring area can be achieved.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to an optical lens, a camera module, electronic equipment and an automobile. Background technique [0002] In recent years, as the country's requirements for road traffic safety and automobile safety continue to increase, in related technologies, optical lenses are mainly installed for blind spot monitoring, thereby improving driving safety of automobiles. [0003] However, the field of view of the vehicle-mounted optical lens in the related art is small, resulting in a small monitoring area. Contents of the invention [0004] The embodiment of the invention discloses an optical lens, a camera module, electronic equipment and a car. The optical lens has a large field of view and can cover a relatively large monitoring area. [0005] In order to achieve the above object, in the first aspect, the embodiment of the present invention discloses an optical lens, the optical len...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06G02B13/14
CPCG02B13/0015G02B13/0045G02B13/006G02B13/008G02B13/14G02B13/06G03B30/00
Inventor 乐宇明兰宾利朱志鹏
Owner JIANGXI JINGCHAO OPTICAL CO LTD
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