WO2022237681A1 - Optical lens, optical module, and electronic device - Google Patents

Abstract

The present application discloses an optical lens, an optical module, and an electronic device, which relate to the technical field of optics. The optical lens comprises: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially arranged from the object side to the image side along an optical axis. The first lens, the second lens, the fourth lens, and the fifth lens are all lenses that have a positive meandering force, and the third lens and the sixth lens are both lenses that have a negative meandering force. The object side surfaces of the first lens and third lens are convex surfaces and the image side surfaces thereof are concave surfaces; the object side surfaces and image side surfaces of the second lens and fourth lens are convex surfaces; the object side surface of the fifth lens is a concave surface and the image side surface thereof is a convex surface; and the object side surface and image side surface of the sixth lens are both concave surfaces.

Description

Optical lens, optical module and electronic equipment

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202110504919.4 filed in China on May 10, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application relates to the field of optical technology, in particular to an optical lens, an optical module and electronic equipment.

Background technique

Users have higher and higher requirements for camera modules. For example, in the application of portrait lenses, the requirements for photo quality with blurred background are getting higher and higher.

In order to improve the quality of background blur when taking pictures, the current solution is to use the depth map to simulate the depth of field effect, and the depth map is obtained by using dual-camera parallax or multi-point laser ranging, and the effect of this method is It can only be close to the optical depth of field. In terms of blurring the background of characters, various problems of false blurring may occur due to complex scenes and different objects.

Contents of the invention

The embodiments of the present application provide an optical lens, an optical module, and an electronic device, which can solve the problem that the current background blur effect may be falsely blurred due to different complex scenes and objects.

In order to solve the above-mentioned technical problems, the application is implemented as follows:

In the first aspect, an embodiment of the present application provides an optical lens, including: a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged in sequence along the optical axis from the object side to the image side and the sixth lens, and the optical centers of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are located on the same straight line;

Wherein, the first lens, the second lens, the fourth lens and the fifth lens are all lenses with positive refraction power, and the third lens and the sixth lens are all with negative refraction power lens of force;

The object sides of the first lens and the third lens are convex, and the image sides of the first lens and the third lens are concave; the object sides of the second lens and the fourth lens are The image sides are both convex; the object side of the fifth lens is concave, and the image side of the fifth lens is convex; the object side and the image side of the sixth lens are both concave.

In the second aspect, the embodiment of the present application also provides an optical module, including the above-mentioned optical lens

In a third aspect, the embodiment of the present application further provides an electronic device, including the above-mentioned optical module.

Like this, the optical lens in the above-mentioned scheme of the present application adopts six aspherical lenses (namely the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens), and by setting each aspheric lens The bending force of the spherical lens and the curved surface characteristics (convex or concave) on the side of the object and the side of the image can ensure that the optical lens has better optical performance, and can solve the current background blur effect that may be caused by complex scenes and objects. The problem of false virtualization is different.

Description of drawings

Fig. 1 shows the schematic diagram of depth of field introduction of the embodiment of the present application;

Fig. 2 represents the schematic diagram of the optical lens of the embodiment of the present application;

Figure 3 shows one of the schematic diagrams of field curvature in the embodiment of the present application;

Fig. 4 represents one of the schematic diagrams of the relative illuminance of the embodiment of the present application;

Fig. 5 represents one of the schematic diagrams of the axial chromatic aberration of the embodiment of the present application;

Figure 6 shows the second schematic diagram of field curvature in the embodiment of the present application;

Figure 7 shows the second schematic diagram of the relative illuminance of the embodiment of the present application;

Figure 8 shows the second schematic diagram of the axial chromatic aberration of the embodiment of the present application;

Figure 9 shows the third schematic diagram of field curvature in the embodiment of the present application;

Figure 10 shows the third schematic diagram of the relative illuminance of the embodiment of the present application;

FIG. 11 shows the third schematic diagram of the axial chromatic aberration of the embodiment of the present application.

Explanation of reference signs:

2. Optical lens; 21. First lens; 22. Second lens; 23. Third lens; 24. Fourth lens; 25. Fifth lens; 26. Sixth lens; 27. Aperture; 28. Photosensitive element; 29. Infrared filter.

Detailed ways

Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood, and the scope of the present application can be fully conveyed to those skilled in the art.

The depth of field is introduced in conjunction with Figure 1 below:

The left side of the lens (the left side of the vertical dotted line in Figure 1) is the object side; the right side of the lens (the right side of the vertical dotted line in Figure 1) is the image side; δ is the diameter of the circle of confusion; f is the image distance; F is the lens aperture value ; L is the object distance.

Then, the foreground depth is: ΔL1=(FδL ² )/(f ² +FδL);

The far-field depth of field is: ΔL2=(FδL ² )/(f ² -FδL).

The embodiment of the present application provides an optical lens, which can solve the problem that the background blurring effect may be falsely blurred due to different complex scenes and objects during shooting.

As shown in Figure 2, the optical lens 2 of the embodiment of the present application includes: a first lens 21, a second lens 22, a third lens 23, and a fourth lens 24 arranged in sequence along the optical axis from the object side to the image side , the fifth lens 25 and the sixth lens 26, and the first lens 21, the second lens 22, the third lens 23, the fourth lens 24, the fifth lens 25 and the first lens The optical centers of the six lenses 26 are located on the same straight line.

Wherein, the first lens 21, the second lens 22, the fourth lens 24 and the fifth lens 25 are lenses with positive refractive power, and the third lens 23 and the sixth lens 26 are lenses with negative refractive power.

The object side surfaces of the first lens 21 and the third lens 23 are convex, and the image sides of the first lens 21 and the third lens 23 are concave; The object side and image side of the lens 24 are both convex; the object side of the fifth lens 25 is concave, and the image side of the fifth lens 25 is convex; the object side and image side of the sixth lens 26 are both concave.

Optionally, the object side can be understood as the side of the lens facing the object, and the image side can be understood as the side of the lens facing the imaging side, for example: after the light emitted or reflected by the object on the first side of the lens passes through the lens, The image is formed on the second side of the lens; wherein, the first side and the second side are opposite sides of the lens, the first side can be called the object side, and the second side can be called the image side.

Optionally, the concave surface can be understood as the surface of the lens is depressed in the direction close to the optical center, and the convex surface can be understood as the surface of the lens is convex in the direction away from the optical center.

Optionally, the lens with positive refraction power has the effect of concentrating light, and the lens with negative refraction power has the effect of scattered light. In this solution, some of the six aspheric lenses of the above-mentioned optical lens have the lens with positive refraction power. The combination with another part of the lens with negative refraction force can satisfy the focusing and discrete neutralization effects, ensure that the optical lens has a good dispersion effect, and meet the zoom ratio requirements of the optical lens.

In the embodiment of the present application, six aspheric lenses (namely the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens) are used, and by setting the bending force of each aspheric lens and The curved surface features (ie, convex or concave) on the side of the object and the side of the image can ensure that the optical lens has better optical performance, and the electronic equipment using the optical lens can solve the background blur effect of the current electronic equipment that may be caused by complex scenes and The difference in shooting objects creates the problem of false blur.

Optionally, the dispersion coefficient of the lens in the optical lens 2 satisfies the following relationship:

1.00<V1/V2<1.01;

2.73<V2/V3<2.91;

0.34<V3/V4<0.37;

2.73<V4/V5<2.91;

0.34<V5/V6<0.36;

Wherein, V1 is the dispersion coefficient of the first lens, V2 is the dispersion coefficient of the second lens, V3 is the dispersion coefficient of the third lens, V4 is the dispersion coefficient of the fourth lens, and V5 is the dispersion coefficient of the The dispersion coefficient of the fifth lens, V6 is the dispersion coefficient of the sixth lens.

Specifically, the first lens 21 (Lens1) is a convex-convex lens, that is, the first surface of Lens1 away from the photosensitive element (sensor) is a convex surface, and the second surface close to the sensor is a concave surface; the second lens 22 (Lens2) is a biconvex lens, that is The first surface of Lens2 away from the sensor and the second surface close to the sensor are both convex; the third lens 23 (Lens3) is a convex-concave lens, that is, the first surface of Lens3 away from the sensor is convex, and the second surface of Lens3 close to the sensor is concave; The fourth lens 24 (Lens4) is a biconvex lens, that is, the first surface of Lens4 away from the sensor and the second surface close to the sensor are convex; the fifth lens 25 (Lens5) is a concave-convex lens, that is, the first surface of Lens5 away from the sensor is Concave, the second surface close to the sensor is convex; the sixth lens 26 (Lens6) is a biconcave lens, that is, the first surface of Lens6 away from the sensor and the second surface close to the sensor are both concave.

In this embodiment, the six aspherical lenses of the optical lens adopt a combination of convex-convex lens, biconvex lens, concave-convex lens and bi-concave lens, so that the optical lens can have a good refraction effect through lenses with different light-gathering or discrete light degrees. and dispersion effects.

Optionally, the first lens 21 and the second lens 22 can use low-refractive-index plastic lenses with low-refractive index, and satisfy the relational expression of dispersion coefficient: 1.00<V1/V2<1.01, which can reduce the cost; the second lens 22, the second The three lens 23 can use low refractive index and high refractive index plastic lens, and satisfy the relationship: 2.73<V2/V3<2.91, which can reduce the cost and will not destroy the dispersion; the third lens 23 and the fourth lens 24 can use high refraction low refractive index plastic lens, and satisfy the relationship: 0.34<V3/V4<0.37, which can reduce the cost without destroying the dispersion; the fourth lens 24 and the fifth lens 25 can use low refractive index and high refractive index plastic lens , and satisfy the relationship: 2.73<V4/V5<2.91, which can reduce the cost without destroying the dispersion; the fifth lens 25 and the sixth lens 26 use high refractive index and low refractive index plastic lenses, and satisfy the relationship: 0.34< V5/V6<0.36, which can reduce the cost without destroying the dispersion.

Among them, a lens with a high refractive index can realize imaging at a shorter distance, but compared with a lens with a low refractive index, the dispersion effect will be weakened. In this embodiment, the six aspherical lenses of the optical lens adopt the combination of the above-mentioned high refractive index and low refractive index lenses, while ensuring the dispersion effect of the optical lens, it is also possible to ensure that the optical lens has the same effect in the optical direction. Smaller overall size.

Optionally, the optical lens 2 also includes: an aperture 27; the aperture 27 is arranged between the third lens 23 and the fourth lens 24 to ensure that the optical lens 2 has a better modulation transfer function (Modulation Transfer Function, MTF) and larger aperture.

Optionally, the surface radius of the lens in the optical lens 2 satisfies the following relationship:

5.61mm<R1<5.68mm;

1.54mm<R2<6.79mm;

4.98mm<R3<5.24mm;

-21.18mm>R4>-12.5mm;

4.9mm<R5<5.13mm;

0.56mm<R6<2.4mm;

9.00mm<R7<10.03mm;

-5.39mm>R8>-12.5mm;

-9.68mm>R9>-8.79mm;

-7.48mm>R10>-1.31mm;

-16.54mm>R11>-13.05mm;

2.1mm<R12<4.32mm;

Wherein, R1 is the object side radius of the first lens, R2 is the image side radius of the first lens, R3 is the object side radius of the second lens, R4 is the image side radius of the second lens, R5 is the object side radius of the third lens, R6 is the image side radius of the third lens, R7 is the object side radius of the fourth lens, R8 is the image side radius of the fourth lens, and R9 is The object side radius of the fifth lens, R10 is the image side radius of the fifth lens, R11 is the object side radius of the sixth lens, and R12 is the image side radius of the sixth lens.

Among them, the larger the value of the surface radius, the gentler the curved surface it presents, which is convenient for processing and manufacturing; and the smaller the value of the surface radius, the more obvious the concave-convex effect of the curved surface presented, which has a better refraction effect. In this embodiment, the object side surface of the first lens 21 is convex, which can effectively avoid stray light such as ghost images, and the use of low refractive index glass lenses can effectively suppress dispersion. In addition, the six aspheric lenses of the optical lens in the embodiment of the present application adopt the combination of the above-mentioned surface radii, which can meet the requirements of manufacturability while satisfying the better refraction effect of the optical lens, so as to facilitate manufacturing.

Among them, if the surface radius is a positive value, the curved surface it presents has a light-gathering effect; if the surface radius is negative, the curved surface it presents has a discrete light effect. The six aspheric lenses of the optical lens in the embodiment of the present application adopt the combination of the above-mentioned surface radii, which can also realize the reconciliation of light concentrating and scattered light, and satisfy the dispersion effect of the optical lens.

Optionally, the focal length of the lens in the optical lens 2 satisfies the following relationship:

47.05mm<f1<67.27mm;

7.27mm<f2<7.90mm;

-8.28mm>f3>-7.70mm;

6.70mm<f4<6.81mm;

32.36mm<f5<38.91mm;

-5.99mm>f6>-5.87mm;

Wherein, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, and f5 is the focal length of the fifth lens Focal length, f6 is the focal length of the sixth lens.

Among them, the size of the focal length can reflect the size of the light-gathering or discrete light ability of the lens, for example, the smaller the focal length, the imaging effect can be achieved at a shorter distance. The six aspherical lenses of the optical lens in the embodiment of the present application adopt the combination of the above-mentioned focal lengths, which can ensure that the effective focal length range of the optical lens 2 is: 9mm-10mm.

Among them, if the focal length is a positive value, the lens presents a light-gathering effect; if the focal length is negative, the lens presents a discrete light effect. The six aspheric lenses of the optical lens in the embodiment of the present application adopt the combination of the above-mentioned focal lengths, which can also realize the reconciliation of concentrated light and scattered light, and satisfy the dispersion effect of the optical lens.

Optionally, the central thickness of the lens on the optical axis in the optical lens 2 satisfies the following relationship:

0.97mm<CT1<1.15mm;

1.96mm<CT2<2.18mm;

0.97mm<CT3<1.00mm;

2.06mm<CT4<2.21mm;

1.16mm<CT5<1.49mm;

0.57mm<CT6<0.58mm;

Wherein, CT1 is the central thickness of the first lens on the optical axis, CT2 is the central thickness of the second lens on the optical axis, CT3 is the central thickness of the third lens on the optical axis, and CT4 is the central thickness of the third lens on the optical axis. The central thickness of the fourth lens on the optical axis, CT5 is the central thickness of the fifth lens on the optical axis, and CT6 is the central thickness of the sixth lens on the optical axis.

In this embodiment, in the case of satisfying the optical effect of the optical lens (such as dispersion effect, refraction effect, etc.) Requirements to avoid processing difficulties caused by too large or too small center thickness.

Optionally, the optical lens 2 further includes: a photosensitive element 28 ; the photosensitive element 28 is disposed adjacent to the image side of the sixth lens 26 .

As shown in FIG. 2 , the photosensitive element 28 is located on the image side of the optical lens, that is, behind the sixth lens 26 ; the photosensitive element 28 can be used for imaging.

Optionally, the diagonal length of the photosensitive element 28 is 1/2.0 inch. The diagonal length range of the effective imaging size (or effective imaging area) of the photosensitive element 28 is: 8.0mm˜8.4mm.

Optionally, the optical lens 2 further includes: an infrared filter 29 ; the infrared filter 29 is located between the photosensitive element 28 and the sixth lens 26 .

Among them, the infrared filter can pass through the spectral energy of the visible light band and filter out the spectral energy of the near infrared band, so as to improve the imaging effect of the optical lens.

Optionally, the optical lens 2 is suitable for visible light, and the wavelength range of the optical lens 2 is: 400nm-700nm. The effective focal length range of the optical lens 2 is: 9mm-10mm. The relative aperture of the optical lens 2 is smaller than 1.2.

The following describes the optical effect of the optical lens of the embodiment of the present application in conjunction with specific examples:

Example 1: Use the following aspheric equation and the specific implementation parameters in Table 1 and Table 2:

Among them, C is the radius of curvature; K is the cone coefficient; A1~An are the aspheric coefficients; X is the X-axis coordinate of the aspheric surface; Z is the Z-axis coordinate of the aspheric surface.

Table 1 (unit: mm)

Table 2

This embodiment optical lens 2 can realize that optical distortion (Optical distortion) is: 0.0%<Optical distortion<1.28%; Field curvature (Field Curvature) is as shown in Figure 3; As shown); axial chromatic aberration is shown in Figure 5; field of view (Field Of View) is: FOV = 45.75 degrees, focal number or relative aperture (F-Number) is: F.no = 1.15, effective focal length (Effective Focal Length) is: EFL＝9.35mm.

Example 2: Use the following aspheric equation and the specific implementation parameters in Table 3 and Table 4:

Among them, C is the radius of curvature; K is the cone coefficient; A1~An are the aspheric coefficients; X is the X-axis coordinate of the aspheric surface; Z is the Z-axis coordinate of the aspheric surface.

Table 3 (unit: mm)

Table 4

The optical lens 2 of this embodiment can realize optical distortion as: 0.0%<Opticaldistortion<1.27%; field curvature as shown in Figure 6; relative illumination is: Relativeillumination>75.52% (as shown in Figure 7); axial chromatic aberration as shown in Figure 8 Shown; field of view: FOV = 45.60 degrees, focal number or relative aperture: F.no = 1.15, effective focal length: EFL = 9.41mm.

Example 3: Use the following aspheric equation and the specific implementation parameters in Table 5 and Table 6:

Among them, C is the radius of curvature; K is the cone coefficient; A1~An are the aspheric coefficients; X is the X-axis coordinate of the aspheric surface; Z is the Z-axis coordinate of the aspheric surface.

Table 5 (unit: mm)

annotation	radius of curvature	thickness	radius	Conic coefficient	MaterialNd/Abbe
lens one	5.68	1.107	4.285	-0.113	1.54/55.98
the	6.79	0.623	4.172	0.040	the
aperture	the	0.635	4.129	0.000	the
lens two	5.24	1.964	4.024	0.033	1.54/55.98
the	-21.18	0.080	3.921	-16.004	the
lens three	4.90	1.004	3.543	-9.805	1.67/19.24
the	2.40	1.791	3.165	-2.581	the
the	the	0.356	3.250	0.000	the
lens four	9.78	2.162	3.683	-4.368	1.54/55.98
the	-5.39	0.080	3.789	-11.354	the
lens five	-8.81	1.359	3.804	2.677	1.67/19.24
the	-6.87	0.708	4.138	1.262	the
lens six	-15.86	0.573	3.939	9.733	1.54/55.98
the	4.10	0.459	4.164	-7.684	the
infrared filter	the	0.210	4.089	0.000	the

Table 6

The optical lens 2 of this embodiment can realize the optical distortion as: 0.0%<Opticaldistortion<1.29%; the field curvature is as shown in Figure 9; the relative illumination is: Relativeillumination>75.43% (as shown in Figure 10); the axial chromatic aberration is as shown in Figure 11 Shown; field of view: FOV = 45.80 degrees, focal number or relative aperture: F.no = 1.15, effective focal length: EFL = 9.36mm.

The embodiment of the present application also provides an optical module, including the above-mentioned optical lens 2 . Optionally, the optical module may be a module that can use the optical lens 2 to obtain image data of external objects, such as a camera module. The optical module in the embodiment of the present application can achieve the technical effects achieved by the optical lens 2 above, and to avoid repetition, details will not be repeated here.

An embodiment of the present application also provides an electronic device, including the above-mentioned optical module. Optionally, and can achieve the technical effect achieved by the above optical module, in order to avoid repetition, it will not be repeated here.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

While the preferred embodiments of the embodiments of the present application have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is understood. Therefore, the appended claims are intended to be interpreted to cover the preferred embodiment and all changes and modifications that fall within the scope of the embodiments of the application.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

What is described above is the preferred embodiment of the present application. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principles described in the application. These improvements and modifications are also described in this application. within the scope of protection applied for.

Claims (15)

1. An optical lens, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence along an optical axis from the object side to the image side, and the first The optical centers of the lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are located on the same straight line;

   Wherein, the first lens, the second lens, the fourth lens and the fifth lens are all lenses with positive refraction power, and the third lens and the sixth lens are all with negative refraction power lens of force;

   The object sides of the first lens and the third lens are convex, and the image sides of the first lens and the third lens are concave; the object sides of the second lens and the fourth lens Both the object side and the image side are convex; the object side of the fifth lens is concave, and the image side of the fifth lens is convex; the object side and the image side of the sixth lens are both concave.
2. The optical lens according to claim 1, wherein the dispersion coefficient of the lens in the optical lens satisfies the following relationship:

   1.00<V1/V2<1.01;

   2.73<V2/V3<2.91;

   0.34<V3/V4<0.37;

   2.73<V4/V5<2.91;

   0.34<V5/V6<0.36;

   Wherein, V1 is the dispersion coefficient of the first lens, V2 is the dispersion coefficient of the second lens, V3 is the dispersion coefficient of the third lens, V4 is the dispersion coefficient of the fourth lens, and V5 is the dispersion coefficient of the The dispersion coefficient of the fifth lens, V6 is the dispersion coefficient of the sixth lens.
3. The optical lens according to claim 1, further comprising:

   An aperture, the aperture is disposed between the third lens and the fourth lens.
4. The optical lens according to claim 1, wherein the surface radius of the lens in the optical lens satisfies the following relationship:

   5.61mm<R1<5.68mm;

   1.54mm<R2<6.79mm;

   4.98mm<R3<5.24mm;

   -21.18mm>R4>-12.5mm;

   4.9mm<R5<5.13mm;

   0.56mm<R6<2.4mm;

   9.00mm<R7<10.03mm;

   -5.39mm>R8>-12.5mm;

   -9.68mm>R9>-8.79mm;

   -7.48mm>R10>-1.31mm;

   -16.54mm>R11>-13.05mm;

   2.1mm<R12<4.32mm;

   Wherein, R1 is the object side radius of the first lens, R2 is the image side radius of the first lens, R3 is the object side radius of the second lens, R4 is the image side radius of the second lens, R5 is the object side radius of the third lens, R6 is the image side radius of the third lens, R7 is the object side radius of the fourth lens, R8 is the image side radius of the fourth lens, and R9 is The object side radius of the fifth lens, R10 is the image side radius of the fifth lens, R11 is the object side radius of the sixth lens, and R12 is the image side radius of the sixth lens.
5. The optical lens according to claim 1, wherein the focal length of the lens in the optical lens satisfies the following relationship:

   47.05mm<f1<67.27mm;

   7.27mm<f2<7.90mm;

   -8.28mm>f3>-7.70mm;

   6.70mm<f4<6.81mm;

   32.36mm<f5<38.91mm;

   -5.99mm>f6>-5.87mm;

   Wherein, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, and f5 is the focal length of the fifth lens Focal length, f6 is the focal length of the sixth lens.
6. The optical lens according to claim 1, wherein the central thickness of the lens on the optical axis in the optical lens satisfies the following relationship:

   0.97mm<CT1<1.15mm;

   1.96mm<CT2<2.18mm;

   0.97mm<CT3<1.00mm;

   2.06mm<CT4<2.21mm;

   1.16mm<CT5<1.49mm;

   0.57mm<CT6<0.58mm;

   Wherein, CT1 is the central thickness of the first lens on the optical axis, CT2 is the central thickness of the second lens on the optical axis, CT3 is the central thickness of the third lens on the optical axis, and CT4 is the central thickness of the third lens on the optical axis. The central thickness of the fourth lens on the optical axis, CT5 is the central thickness of the fifth lens on the optical axis, and CT6 is the central thickness of the sixth lens on the optical axis.
7. The optical lens according to claim 1, further comprising:

   A photosensitive element, the photosensitive element is arranged adjacent to the image side of the sixth lens.
8. The optical lens according to claim 7, wherein the diagonal length of the photosensitive element is 1/2.0 inch.
9. The optical lens according to claim 7, wherein the diagonal length range of the effective imaging size of the photosensitive element is: 8.0mm˜8.4mm.
10. The optical lens according to claim 7, further comprising:

    An infrared filter, the infrared filter is located between the photosensitive element and the sixth lens.
11. The optical lens according to claim 1, wherein the wavelength range of the optical lens is: 400nm-700nm.
12. The optical lens according to claim 1, wherein the effective focal length of the optical lens ranges from 9mm to 10mm.
13. The optical lens according to claim 1, wherein the relative aperture of the optical lens is less than 1.2.
14. An optical module, comprising the optical lens according to any one of claims 1-13.
15. An electronic device comprising the optical module as claimed in claim 14.

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