WO2022160121A1

WO2022160121A1 - Optical imaging lens, image capturing apparatus, and electronic device

Info

Publication number: WO2022160121A1
Application number: PCT/CN2021/073942
Authority: WO
Inventors: 徐标; 李明
Original assignee: 欧菲光集团股份有限公司; 江西晶超光学有限公司
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2022-08-04

Abstract

An optical imaging lens (100), an image capturing apparatus (200), and an electronic device (300). The optical imaging lens (100) sequentially comprises, from an object side to an image side, along an optical axis (110): a first lens (L1); a second lens (L2) having positive refractive power, an object side surface (S3) of the second lens (L2) close to the optical axis (110) being a convex surface; an image side surface (S4) of the second lens (L2) close to the optical axis (110) being a convex surface; a third lens (L3); a fourth lens (L4); a fifth lens (L5); and a sixth lens (L6) having negative refractive power, an image side surface (S12) of the sixth lens (L6) close to the optical axis (110) being a concave surface. The optical imaging lens (100) satisfies the following relations: 100º < FOV < 106º; TTL/Imgh/cm < 1.3, wherein FOV is the maximum field of view angle of the optical imaging lens (100); TTL is the distance between an object side surface (S1) of the first lens (L1) and an image side surface (S15) of the optical imaging lens (100) on the optical axis (110); Imgh is half of the image height corresponding to the maximum FOV of the optical imaging lens (100).

Description

Optical imaging lens, imaging device and electronic equipment

technical field

The present application relates to the technical field of optical imaging, and in particular, to an optical imaging lens, an imaging device and electronic equipment.

Background technique

With the development of technology, cameras are widely used in various fields, making people's demand for cameras with different performance characteristics more and more intense. Especially with the popularization of smart electronic devices in daily life, it has become an urgent demand for electronic devices to provide various shooting experiences on miniaturized electronic devices, and even to achieve professional camera effects.

When shooting large-scale scenes, it is difficult for cameras in traditional technologies to achieve good shooting results.

SUMMARY OF THE INVENTION

According to various embodiments of the present application, a camera module and an electronic device are provided.

In a first aspect, an embodiment of the present application provides an optical imaging lens, the optical imaging lens includes sequentially from the object side to the image side along the optical axis: a first lens, having a refractive power; a second lens, having a positive refractive power, a first lens The object side of the second lens is convex at the near optical axis, and the image side of the second lens is convex at the near optical axis; the third lens has refractive power; the fourth lens has refractive power; the fifth lens has refractive power ; The sixth lens has negative refractive power, and the image side of the sixth lens is concave at the near optical axis; the optical imaging lens satisfies the following relationship: 100°<FOV<106°; TTL/Imgh<1.3; among them, FOV is the maximum field of view of the optical imaging lens, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and Imgh is half of the image height corresponding to the maximum field of view of the optical imaging lens.

In a second aspect, an embodiment of the present application provides an image pickup device, where the image pickup device includes the above-mentioned optical imaging lens and a photosensitive element, and the photosensitive element is disposed on the image side of the optical imaging lens.

In a third aspect, an embodiment of the present application provides an electronic device, the electronic device includes a casing and the above-mentioned imaging device, and the imaging device is disposed on the casing.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present invention will become apparent from the description, drawings and claims.

Description of drawings

In order to better describe and illustrate embodiments and/or examples of those inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the disclosed inventions, the presently described embodiments and/or examples, and the best mode presently understood of these inventions.

1 is a schematic structural diagram of an optical imaging lens provided in Embodiment 1 of the present application;

2 is a spherical aberration diagram, an astigmatism diagram and a distortion diagram of the optical imaging lens provided in Embodiment 1 of the present application;

3 is a schematic structural diagram of an optical imaging lens provided in Embodiment 2 of the present application;

FIG. 4 is a spherical aberration diagram, an astigmatism diagram and a distortion diagram of the optical imaging lens provided in Embodiment 2 of the present application;

5 is a schematic structural diagram of an optical imaging lens provided in Embodiment 3 of the present application;

6 is a spherical aberration diagram, an astigmatism diagram, and a distortion diagram of the optical imaging lens provided in Embodiment 3 of the present application;

7 is a schematic structural diagram of an optical imaging lens provided in Embodiment 4 of the present application;

FIG. 8 is a spherical aberration diagram, an astigmatism diagram and a distortion diagram of the optical imaging lens provided in Embodiment 4 of the present application;

9 is a schematic structural diagram of an optical imaging lens provided in Embodiment 5 of the present application;

10 is a spherical aberration diagram, an astigmatism diagram, and a distortion diagram of the optical imaging lens provided in Embodiment 5 of the present application;

11 is a schematic structural diagram of an optical imaging lens provided in Embodiment 6 of the present application;

12 is a spherical aberration diagram, an astigmatism diagram, and a distortion diagram of the optical imaging lens provided in Embodiment 6 of the present application;

13 is a schematic structural diagram of an imaging device provided by an embodiment of the application;

FIG. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. The preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are for the purpose of describing specific embodiments only, and are not intended to limit the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In this specification, the expressions first, second, third, etc. are only used to distinguish one feature from another feature and do not imply any limitation on the feature. Accordingly, the first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application. For ease of explanation, the spherical or aspherical shapes shown in the drawings are shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The drawings are examples only and are not drawn strictly to scale.

In this specification, the space on the side where the object is located relative to the optical element is called the object side of the optical element. Correspondingly, the image formed by the object relative to the side space where the optical element is located is called the image of the optical element. side. The surface of each lens closest to the object is called the object side, and the surface of each lens closest to the imaging surface is called the image side. And define the positive direction of the distance from the object side to the image side.

In addition, in the following description, if the lens surface is convex and the position of the convex surface is not defined, it means that the surface of the lens is convex at least near the optical axis; if the surface of the lens is concave and the position of the concave surface is not defined, then Indicates that the lens surface is concave at least near the optical axis. Here, near the optical axis refers to an area near the optical axis.

The following first explains the aberrations involved in the embodiments of the present application; aberration refers to the inconsistency between the results obtained by non-paraxial ray tracing and the results obtained by paraxial ray tracing in the optical system, which is inconsistent with Gaussian optics Deviation from ideal conditions (first-order approximation theory or paraxial rays). Aberration is divided into two categories: chromatic aberration (chromatic aberration, or chromatic aberration) and monochromatic aberration (monochromatic aberration). Chromatic aberration is due to the refractive index of the lens material is a function of the wavelength. When light of different wavelengths passes through the lens, it is caused by different refractive indices. Chromatic aberration can be divided into two types: positional chromatic aberration and magnification chromatic aberration. Chromatic aberration is a kind of dispersion phenomenon. The so-called dispersion phenomenon refers to the phenomenon that the speed of light or the refractive index in the medium changes with the wavelength of the light wave. The dispersion that increases with the increase of wavelength can be called negative dispersion (or negative anomalous dispersion). Monochromatic aberration refers to the aberration that occurs even in highly monochromatic light. According to the effect, monochromatic aberration is divided into two categories: "blurring the image" and "distorting the image"; the former category has spherical Aberration (spherical aberration, may be referred to as spherical aberration), astigmatism (astigmatism), etc., the latter category includes field curvature (field curvature, may be referred to as field curvature), distortion (distortion) and so on. Aberration also includes coma, which refers to a monochromatic conical beam emitted to the optical system from an off-axis object point located outside the main axis. After being refracted by the optical system, it cannot form a clear point at the ideal plane. , but form comet-shaped spots with bright tails.

Please refer to FIG. 1 , FIG. 3 , FIG. 5 , FIG. 7 , FIG. 9 , and FIG. 11 together. An embodiment of the present application proposes an optical imaging lens 100 . The optical imaging lens 100 extends from the object side to the image side along the optical axis 110 It 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 in sequence.

The first lens L1 has positive refractive power or negative refractive power, and the object side S1 and the image side S2 of the first lens L1 may be concave, flat or convex at the near optical axis 110 . The second lens L2 has positive refractive power, the object side S3 of the second lens L2 is convex at the near optical axis 110 , and the image side S4 of the second lens L2 is convex at the near optical axis 110 . The third lens L3 has positive refractive power or negative refractive power, and the object side S5 and the image side S6 of the third lens L3 may be concave, flat or convex at the near optical axis 110 . The fourth lens L4 has positive refractive power or negative refractive power, and the object side S7 and the image side S8 of the fourth lens L4 may be concave, flat or convex at the near optical axis 110 . The fifth lens L5 has positive refractive power or negative refractive power, and the object side S6 and the image side S10 of the fifth lens L5 may be concave, flat or convex at the near optical axis 110 . The sixth lens L6 has a negative refractive power, the object side S11 of the sixth lens L6 can be concave at the near optical axis 110, it can also be a plane, and can also be convex, and the image side S12 of the sixth lens L6 is at the near optical axis 110. is concave.

In addition, the optical imaging lens 100 satisfies the following relationship: 100°<FOV<106°; TTL/Imgh<1.3; wherein, FOV is the maximum angle of view of the optical imaging lens 100 , and TTL is the object side surface S1 to the object side of the first lens L1 to The distance between the imaging surface 15 of the optical imaging lens 100 and the optical axis 110 , Imgh is half of the image height corresponding to the maximum angle of view of the optical imaging lens 100 . The rectangular effective pixel area of the image sensor has a diagonal direction. When the image sensor is assembled, the FOV can be understood as the maximum field angle of the optical imaging lens 100 parallel to the diagonal direction. By limiting the maximum field of view angle range of the optical imaging lens 100, it has the characteristics of wide angle, so as to meet the shooting requirements for a large field of view range. The FOV can be any angle in the range of (100°, 106°), for example, the value is 101.6°, 101.7°, 101.8°, 102°, 102.1°, and so on. While controlling TTL and Imgh to satisfy the above conditional expression, the total optical length is constrained by the size of the imaging surface S15 of the optical imaging lens 100 with wide-angle characteristics, so that the optical imaging lens 100 has ultra-thin characteristics and meets the design requirements for miniaturization. TTL/Imgh can be any value less than 1.3, for example, the value is 1.21, 1.22, 1.23, 1.24, 1.25, 1.26, 1.27, and so on. Imgh can also be understood as half of the diagonal length of the rectangular effective imaging area on the imaging surface S15. When the image sensor is assembled, Imgh can also be understood as the distance from the center of the rectangular effective pixel area to the diagonal edge of the image sensor, and the diagonal direction of the above-mentioned effective imaging area is parallel to the diagonal direction of the rectangular effective pixel area. .

Based on the above-mentioned embodiment, by reasonably configuring the refractive power, surface shape and arrangement and combination order of the first lens L1 to the sixth lens L6, it is beneficial to eliminate the aberration inside the optical imaging lens 100 and realize the mutual correction of the aberration between the lenses. , to improve the resolution of the optical imaging lens 100, so that it can well capture the details of the subject, obtain high-quality imaging, and improve imaging clarity. In addition, by limiting the maximum field of view angle range of the optical imaging lens 100, it has the characteristics of wide angle, so as to meet the shooting requirements for a large field of view range. Controlling TTL and Imgh to satisfy the above-mentioned conditional expression, and constraining the total optical length through the imaging surface size of the optical imaging lens with wide-angle characteristics, makes the optical imaging lens ultra-thin and meets the design requirements of miniaturization.

Each lens can be made of a light-transmitting optical material. In order to save the cost of the optical imaging lens 100 , each lens can be made of a plastic material. The imaging quality of the optical imaging lens 100 is not only related to the cooperation between the various lenses in the lens, but also closely related to the material of each lens. Therefore, in order to improve the imaging quality of the optical imaging lens 100, each lens may also be partially or fully used. Made of glass material.

In one of the embodiments, the optical imaging lens 100 satisfies the following relationship: |V5-V6|>20; wherein, V5 is the Abbe number of the fifth lens L5, and V6 is the Abbe number of the sixth lens L6. Based on the above-mentioned embodiment, controlling the Abbe numbers of the fifth lens L5 and the sixth lens L6 to satisfy the above-mentioned conditional expression can reduce the chromatic aberration in the optical imaging lens 100 and make it have better imaging performance.

In one of the embodiments, the optical imaging lens 100 satisfies the following relationship: FNO≦2.4; wherein, FNO is the aperture number of the optical imaging lens 100 . Based on the above embodiment, satisfying the above relationship can make the optical imaging lens 100 have a larger light entrance aperture, ensure sufficient light input in the optical imaging lens 100, make the captured image clearer, and in scenes with dark ambient light You can also shoot normally. FNO can be any value less than or equal to 2.4, such as 2.400, 2.395, 2.391, 2.386, 2.381, 2.377, 2.370 and so on.

In one of the embodiments, the optical imaging lens 100 satisfies the following relationship: 2<(R5+R6)/R6<3; wherein, R5 is the radius of curvature of the object side surface S5 of the third lens L3 at the optical axis 110, R6 is the radius of curvature of the image side surface S6 of the third lens L3 at the optical axis 110 . Based on the above embodiment, satisfying the above relationship can effectively reduce the sensitivity of the molding yield of the third lens L3 and improve the assembly yield of the optical imaging lens 100 . However, if the configuration relationship between the curvature radius R5 of the object side surface S5 of the third lens L3 at the optical axis 110 and the curvature radius R6 of the image side surface S6 of the third lens L3 at the optical axis 110 exceeds the range of the above relationship, the first The sensitivity of the molding yield of the triple lens L3 increases, which reduces the production yield. (R5+R6)/R6 can be any value in the range of (2, 3), for example, the value is 2.052, 2.161, 2.234, 2.307, 2.427, 2.586, 2.600, 2.642, 2.675, and so on.

In one of the embodiments, the optical imaging lens 100 satisfies the following relationship: 0.35<∑CT/TTL<0.7; wherein, ∑CT is the sum of the thicknesses of the lenses in the optical imaging lens 100 at the optical axis 110, and TTL is the first The distance from the object side surface S1 of a lens L1 to the imaging surface S15 of the optical imaging lens 100 on the optical axis 110 . Based on the above-mentioned embodiment, satisfying the above-mentioned relational expression can not only satisfy the imaging quality, but also ensure that the ratio of the total thickness of each lens on the optical axis 110 to the total length of the optical imaging lens 100 is neither too large nor too small. As a result, the optical imaging lens 100 is difficult to assemble, and if it is too small, the design space in the optical imaging lens 100 is wasted, and the thinning cannot be achieved. ΣCT/TTL can be any value within the range of (0.35, 0.7), for example, the value is 0.510, 0.517, 0.525, 0.529, 0.530, 0.534, 0.539, 0.540, and so on.

In one of the embodiments, the optical imaging lens 100 satisfies the following relationship: 0.7<f12/f<1.5; wherein, f12 is the combined focal length of the first lens L1 and the second lens L2, and f is the effective focal length of the optical imaging lens 100 . Based on the above embodiment, satisfying the above relationship can control the combined focal length of the first lens L1 and the second lens L2 within a certain range, so that the advanced spherical aberration in the optical imaging lens 100 can be well corrected, so that the optical imaging lens 100 has better image quality. f12/f can be any value in the range of (0.7, 1.5), for example, the value is 0.79, 0.81, 0.85, 0.90, 0.95, 1.00, 1.07, 1.13, 1.21 and so on.

In one of the embodiments, the optical imaging lens 100 satisfies the following relationship: 2.5<|R7+R8|/|R7−R8|<5.5; wherein, R7 is the object side surface S7 of the fourth lens L4 at the optical axis 110 The curvature radius, R8 is the curvature radius of the image side surface S8 of the fourth lens L4 at the optical axis 110 . Based on the above embodiment, satisfying the above relationship can effectively reduce the sensitivity of the molding yield of the fourth lens L4, improve the assembly stability of the optical imaging lens 100, and can well balance the advanced aberrations in the optical imaging lens 100, improve the image quality. |R7+R8|/|R7-R8| can be any value in the range of (2.5, 5.5), for example, the value is 2.72, 2.79, 2.88, 3.00, 3.73, 4.05, 4.41, 4.77, 5.02, 5.05, etc.

In one of the embodiments, the optical imaging lens 100 satisfies the following relationship: 0.25mm<ET3<0.5mm; wherein, ET3 is the parallel light of the third lens L3 from the maximum effective aperture of the object side S5 to the maximum effective aperture of the image side S6 Distance in the direction of axis 110. Based on the above embodiment, satisfying the above relationship can effectively correct the optical distortion in the optical imaging lens 100, so that the optical imaging lens 100 has good optical performance, and also facilitates the processing and manufacture of the third lens L3. ET3 can be any value within the range of (0.25mm, 0.5mm), such as 0.256mm, 0.261mm, 0.274mm, 0.289mm, 0.293mm, 0.297mm, 0.315mm, 0.343mm, 0.381mm, etc.

In one embodiment, the optical imaging lens 100 satisfies the following relation: 0.4mm<CT2<0.55mm; wherein CT2 is the thickness of the second lens L2 at the optical axis 110 . Based on the above embodiment, satisfying the above relationship can make the second lens L2 have good processing characteristics, which is beneficial to the processing and molding of the second lens L2, and at the same time, the total length of the optical imaging lens 100 can be kept within a certain range to meet the requirements of miniaturization. design requirements. CT2 can be any value within the range of (0.4mm, 0.55mm), for example, the value is 0.44mm, 0.45mm, 0.47mm, 0.49mm, 0.50mm, 0.52mm, and the like.

The above design refractive index and Abbe number are based on the light with a wavelength of 587.56nm, and the focal length is based on the light with a wavelength of 555nm.

The optical imaging lens 100 may further include a diaphragm STO, and the diaphragm STO is disposed between two adjacent lenses in the optical imaging lens 100 . The diaphragm STO can reduce stray light in the optical imaging lens 100 to improve imaging quality, and the diaphragm STO may be an aperture diaphragm and/or a field diaphragm. The diaphragm STO is disposed between two adjacent lenses in the optical imaging lens 100. For example, the diaphragm STO may be located between the object surface of the optical imaging lens 100 and the object side surface S1 of the first lens L1, and the Between the image side S2 and the object side S3 of the second lens L2, between the image side S4 of the second lens L2 and the object side S5 of the third lens L3, etc. To save cost, the diaphragm STO can also be set on the object side of any lens or the image side of any lens. In this embodiment, the diaphragm STO is arranged between the image side S2 of the first lens L1 and the object side S3 of the second lens L2, and the diaphragm STO is arranged in the middle of the optical imaging lens 100 to form an optical imaging lens. 100 provides the possibility to have a larger field of view, effectively improving the viewing range of the picture.

The light rays emitted or reflected from the object to be photographed pass through the first lens L1 , the second lens L2 , the third lens L3 , the fourth lens L4 , the fifth lens L5 , and the sixth lens of the optical imaging lens 100 in sequence from the object side The image side is reached after L6, and the image is imaged on the image side. In order to ensure the imaging clarity of the object to be photographed on the image side, the optical imaging lens 100 may further include an infrared filter 120, and the infrared filter 120 may be arranged on the image side S12 of the sixth lens L7 and the image of the optical imaging lens 100. between the sides. By arranging the infrared filter 120 in the optical imaging lens 100, the light needs to pass through the infrared filter 120 after passing through the sixth lens L6, so that the infrared rays in the light can be effectively filtered, thereby ensuring the The imaging sharpness of the photographed object. Further, the optical imaging lens 100 may further include protective glass, which may be disposed on the image side of the infrared filter 120 to protect the photosensitive element, and also to prevent the photosensitive element from being contaminated with dust, thereby further ensuring imaging quality. It should be noted that, in some embodiments, in order to reduce the weight of the system or reduce the total length of the lens, it is also possible to choose not to provide a protective glass, which is not limited in this application.

The optical imaging lens 100 of the above-mentioned embodiments of the present application may employ multiple lenses, for example, the above-mentioned six lenses. By reasonably assigning the focal length, refractive power, surface shape, thickness, and on-axis distance between the lenses, etc., the aberrations inside the optical imaging lens 100 can be eliminated, and the aberrations between the lenses can be mutually corrected, improving the The resolution power of the optical imaging lens 100 enables it to capture the details of the subject well, obtain high-quality imaging, and improve imaging clarity, so as to better meet the requirements of light-weight lenses such as in-vehicle auxiliary systems, mobile phones, and tablets. Application requirements of electronic equipment. However, those skilled in the art should understand that the number of lenses constituting the optical imaging lens 100 can be changed to obtain various results and advantages described in this specification without departing from the technical solutions claimed in the present application.

Specific examples of the optical imaging lens 100 applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

Example 1

The following describes the optical imaging lens 100 of the first embodiment of the present application with reference to FIGS. 1 to 2 .

FIG. 1 shows the structure of the optical imaging lens 100 in the first embodiment. The optical imaging lens 100 includes a first lens L1, a second lens L2, and a third lens L3 sequentially arranged along the optical axis 110 from the object side to the image side , the fourth lens L4, the fifth lens L5, the sixth lens L6, the infrared filter 120, and the imaging surface S15. The diaphragm STO is disposed between the image side surface S2 of the first lens L1 and the object side surface S3 of the second lens L2.

The first lens L1 has a negative refractive power, the object side S1 and the image side S2 are both aspherical, wherein the object side S1 is convex at the near optical axis 110 and concave at the circumference, and the image side S2 is at the near optical axis. Concave at 110 and concave at the circumference. The second lens L2 has a positive refractive power, and the object side S3 and the image side S4 are both aspherical, wherein the object side S3 is convex at the near optical axis 110, and is convex at the circumference, and the image side S4 is at the near optical axis 110. Convex, convex at the circumference. The third lens L3 has negative refractive power, the object side S5 and the image side S6 are both aspherical, wherein the object side S5 is convex at the near optical axis 110, and is convex at the circumference, and the image side S6 is at the near optical axis 110. It is concave, and it is concave at the circumference. The fourth lens L4 has a positive refractive power, and its object side S7 and image side S8 are both aspherical, wherein the object side S7 is concave at the near optical axis 110, and is concave at the circumference, and the image side S8 is at the near optical axis 110. Convex at the circumference and concave at the circumference. The fifth lens L5 has a positive refractive power, and the object side S9 and the image side S10 are both aspherical, wherein the object side S9 is concave at the near optical axis 110, and is concave at the circumference, and the image side S10 is at the near optical axis 110. Convex, convex at the circumference. The sixth lens L6 has a negative refractive power, and its object side S11 and image side S12 are both aspherical surfaces, wherein the object side S11 is a convex surface at the near optical axis 110, and is concave at the circumference, and the image side S12 is at the near optical axis 110. Concave and convex at the circumference.

In this embodiment, the refractive index and Abbe number are based on light with a wavelength of 587.56 nm, and the focal length is based on light with a wavelength of 555 nm. The lens surface type, radius of curvature, thickness, material, refractive index, Related parameters such as Abbe number (ie dispersion coefficient) and focal length are shown in Table 1. Among them, f represents the effective focal length of the optical imaging lens 100, FNO represents the aperture value, FOV represents the maximum field angle of the optical imaging lens 100, and TTL represents the optical axis from the object side of the first lens L1 to the imaging surface S15 of the optical imaging lens 100. 100 on the distance. It should be noted that the units of curvature radius, thickness, and effective focal length of the lens are all millimeters (mm). In addition, taking the first lens L1 as an example, the first value in the "thickness" parameter column of the first lens L1 is the thickness of the lens on the optical axis 110, and the second value is the image side to the image side of the lens The distance from the object side of the lens to the optical axis 110 in the direction of ) The distance on the optical axis 110, the default direction from the object side of the first lens L1 to the image side of the last lens is the positive direction of the optical axis 110, when the value is negative, it indicates that the aperture ST0 is arranged on the object of the lens On the right side of the apex of the side surface, if the thickness of the stop STO is a positive value, the stop STO is on the left side of the apex of the object side surface of the lens.

Table 1

The aspheric surface type in a lens is defined by the following formula:

Among them, x is the distance vector height of the aspheric surface from the vertex of the aspheric surface when the height is h along the optical axis 110 direction; c is the paraxial curvature of the aspheric surface, c=1/R (that is, the paraxial curvature c is Table 1 The reciprocal of the radius of curvature R); k is the conic coefficient; Ai is the i-th order coefficient of the aspheric surface. Table 2 shows the high-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for the aspheric surface of the lens in Example 1.

Table 2

The half of the image height Imgh corresponding to the maximum angle of view of the optical imaging lens 100 is 3.326mm, and the distance TTL from the object side S1 of the first lens L1 to the diaphragm STO on the optical axis 100 is 4.21mm. It can be seen from the data in 2 that the optical imaging lens 100 in the first embodiment satisfies:

FOV=102.1°; FOV is the maximum field angle of the optical imaging lens 100 . Satisfying the above relationship can make the optical imaging lens 100 have a wide-angle characteristic, and meet the shooting requirements for a wide field of view.

TTL/Imgh=1.27; wherein, TTL is the distance from the object side S1 of the first lens L1 to the imaging surface S15 of the optical imaging lens 100 on the optical axis 110, and Imgh is the image corresponding to the maximum angle of view of the optical imaging lens 100. half the height. Satisfying the above relationship can make the optical imaging lens 100 have ultra-thin characteristics and meet the design requirements of miniaturization.

|V5-V6|=27.43; wherein, V5 is the Abbe number of the fifth lens, and V6 is the Abbe number of the sixth lens. Satisfying the above relationship can reduce the chromatic aberration in the optical imaging lens 100 and make it have better imaging performance.

FNO=2.39; FNO is the aperture number of the optical imaging lens 100 . Satisfying the above relationship can make the optical imaging lens 100 have a larger light entrance aperture, ensure that there is enough light in the optical imaging lens 100, make the captured image clearer, and can also operate normally in scenes with dark ambient light shoot.

(R5+R6)/R6=2.616; wherein, R5 is the radius of curvature of the object side S5 of the third lens L3 at the optical axis 110, and R6 is the radius of curvature of the image side S6 of the third lens L3 at the optical axis 110. Satisfying the above relationship can effectively reduce the sensitivity of the third lens L3 and improve the assembly yield of the optical imaging lens 100 .

∑CT/TTL=0.54; wherein, ∑CT is the sum of the thicknesses of each lens in the optical imaging lens 100 at the optical axis 110, and TTL is the distance between the object side S1 of the first lens L1 and the imaging plane S15 of the optical imaging lens 100. Distance on axis 110. Satisfying the above relationship can effectively shorten the total length of the optical imaging lens 100 while satisfying the imaging quality, so as to meet the design requirement of miniaturization.

f12/f=0.86; wherein, f12 is the combined focal length of the first lens L1 and the second lens L2 , and f is the effective focal length of the optical imaging lens 100 . Satisfying the above relationship can control the combined focal length of the first lens L1 and the second lens L2 within a certain range, so that the advanced spherical aberration in the optical imaging lens 100 can be well corrected, so that the optical imaging lens 100 has better performance. image quality.

|R7+R8|/|R7-R8|=5.05; wherein, R7 is the curvature radius of the object side S7 of the fourth lens L4 at the optical axis 110, R8 is the image side S8 of the fourth lens L4 at the optical axis 110 the radius of curvature. Satisfying the above relationship can effectively reduce the sensitivity of the fourth lens L4, improve the assembly stability of the optical imaging lens 100, and can well balance the advanced aberrations in the optical imaging lens 100 to improve the imaging quality.

ET3=0.38mm; ET3 is the distance from the third lens L3 at the maximum effective aperture of the object side S5 to the maximum effective aperture of the image side S6 in the direction parallel to the optical axis 110 . Satisfying the above relationship can effectively correct the optical distortion in the optical imaging lens 100 , so that the optical imaging lens 100 has good optical performance, and also facilitates the processing and manufacture of the third lens L3 .

CT2=0.5252mm; CT2 is the thickness of the second lens L2 at the optical axis 110 . Satisfying the above relationship can make the second lens L2 have good processing characteristics, which is beneficial to the processing and molding of the second lens L2, and at the same time, the total length of the optical imaging lens 100 can be kept within a certain range to meet the miniaturization design requirements.

FIG. 2 shows the longitudinal spherical aberration curve, astigmatism curve, and distortion curve of the optical imaging lens 100 according to the first embodiment, respectively. The reference wavelength of the optical imaging lens 100 is 555 nm. Among them, the longitudinal spherical aberration graph shows the deviation of the converging point of light with a wavelength of 100 after passing through the optical imaging lens 100; the astigmatism graph shows the meridional image plane curvature and sagittal image plane curvature of the optical imaging lens 100; the distortion curve The figure shows the distortion of the optical imaging lens 100 under different image heights. It can be seen from FIG. 2 that the optical imaging lens 100 given in the first embodiment can achieve good imaging quality.

Embodiment 2

The following describes the optical imaging lens 100 of the second embodiment of the present application with reference to FIGS. 3 to 4 .

FIG. 3 shows the structure of the optical imaging lens 100 in the second embodiment. The optical imaging lens 100 includes a first lens L1 , a second lens L2 , and a third lens L3 sequentially arranged along the optical axis 110 from the object side to the image side , the fourth lens L4, the fifth lens L5, the sixth lens L6, the infrared filter 120, and the imaging surface S15. The diaphragm STO is disposed between the image side surface S2 of the first lens L1 and the object side surface S3 of the second lens L2.

The first lens L1 has a negative refractive power, the object side S1 and the image side S2 are both aspherical, wherein the object side S1 is concave at the near-optical axis 110, and is concave at the circumference, and the image side S2 is at the near-optical axis. Concave at 110 and concave at the circumference. The second lens L2 has a positive refractive power, and the object side S3 and the image side S4 are both aspherical, wherein the object side S3 is convex at the near optical axis 110, and is convex at the circumference, and the image side S4 is at the near optical axis 110. Convex, convex at the circumference. The third lens L3 has negative refractive power, the object side S5 and the image side S6 are both aspherical, wherein the object side S5 is convex at the near optical axis 110, and is convex at the circumference, and the image side S6 is at the near optical axis 110. It is concave, and it is concave at the circumference. The fourth lens L4 has a positive refractive power, and its object side S7 and image side S8 are both aspherical, wherein the object side S7 is concave at the near optical axis 110, and is concave at the circumference, and the image side S8 is at the near optical axis 110. Convex at the circumference and concave at the circumference. The fifth lens L5 has a negative refractive power, and the object side S9 and the image side S10 are both aspherical surfaces, wherein the object side S9 is concave at the near optical axis 110, and is concave at the circumference, and the image side S10 is at the near optical axis 110. Convex, convex at the circumference. The sixth lens L6 has a negative refractive power, and its object side S11 and image side S12 are both aspherical surfaces, wherein the object side S11 is a convex surface at the near optical axis 110, and is concave at the circumference, and the image side S12 is at the near optical axis 110. Concave and convex at the circumference.

In this embodiment, the parameters of each lens in the optical imaging lens 100 are given in Table 3 and Table 4, wherein the definitions of the structures and parameters can be obtained from the first embodiment, which will not be repeated here.

table 3

Table 4

Combining with the data in Table 3 and Table 4, it can be known that the optical imaging lens 100 in the second embodiment satisfies:

table 5

It can be seen from FIG. 4 that the longitudinal spherical aberration, field curvature and distortion in the optical imaging lens 100 given in the second embodiment are well controlled, so that the optical imaging lens 100 of this embodiment can achieve good imaging quality.

Embodiment 3

The following describes the optical imaging lens 100 of the third embodiment of the present application with reference to FIGS. 5 to 6 .

FIG. 5 shows the structure of the optical imaging lens 100 in the third embodiment. The optical imaging lens 100 includes a first lens L1 , a second lens L2 , and a third lens L3 sequentially arranged along the optical axis 110 from the object side to the image side , the fourth lens L4, the fifth lens L5, the sixth lens L6, the infrared filter 120, and the imaging surface S15. The diaphragm STO is disposed between the image side surface S2 of the first lens L1 and the object side surface S3 of the second lens L2.

The first lens L1 has a negative refractive power, the object side S1 and the image side S2 are both aspherical, wherein the object side S1 is concave at the near-optical axis 110, and is concave at the circumference, and the image side S2 is at the near-optical axis. Convex at 110 and concave at the circumference. The second lens L2 has a positive refractive power, and the object side S3 and the image side S4 are both aspherical, wherein the object side S3 is convex at the near optical axis 110, and is convex at the circumference, and the image side S4 is at the near optical axis 110. Convex, convex at the circumference. The third lens L3 has a positive refractive power, the object side S5 and the image side S6 are both aspherical, wherein the object side S5 is convex at the near optical axis 110, and is convex at the circumference, and the image side S6 is at the near optical axis 110. It is concave, and it is concave at the circumference. The fourth lens L4 has a positive refractive power, and its object side S7 and image side S8 are both aspherical, wherein the object side S7 is concave at the near optical axis 110, and is concave at the circumference, and the image side S8 is at the near optical axis 110. Convex, convex at the circumference. The fifth lens L5 has a negative refractive power, and the object side S9 and the image side S10 are both aspherical surfaces, wherein the object side S9 is concave at the near optical axis 110, and is concave at the circumference, and the image side S10 is at the near optical axis 110. Convex, convex at the circumference. The sixth lens L6 has a negative refractive power, and its object side S11 and image side S12 are both aspherical surfaces, wherein the object side S11 is a convex surface at the near optical axis 110, and is concave at the circumference, and the image side S12 is at the near optical axis 110. Concave and convex at the circumference.

In this embodiment, the parameters of each lens in the optical imaging lens 100 are given in Table 6 and Table 7, wherein the definitions of the structures and parameters can be obtained from the first embodiment, which will not be repeated here.

Table 6

Table 7

Combining with the data in Table 6 and Table 7, it can be known that the optical imaging lens 100 in the third embodiment satisfies:

Table 8

It can be seen from FIG. 6 that the longitudinal spherical aberration, field curvature and distortion in the optical imaging lens 100 of the third embodiment are well controlled, so that the optical imaging lens 100 of this embodiment can achieve good imaging quality.

Embodiment 4

The optical imaging lens 100 according to the fourth embodiment of the present application will be described below with reference to FIGS. 7 to 8 .

FIG. 7 shows the structure of the optical imaging lens 100 in the fourth embodiment. The optical imaging lens 100 includes a first lens L1 , a second lens L2 , and a third lens L3 sequentially arranged along the optical axis 110 from the object side to the image side , the fourth lens L4, the fifth lens L5, the sixth lens L6, the infrared filter 120, and the imaging surface S15. The diaphragm STO is disposed between the image side surface S2 of the first lens L1 and the object side surface S3 of the second lens L2.

The first lens L1 has a negative refractive power, the object side S1 and the image side S2 are both aspherical, wherein the object side S1 is concave at the near-optical axis 110, and is concave at the circumference, and the image side S2 is at the near-optical axis. Concave at 110 and concave at the circumference. The second lens L2 has a positive refractive power, and the object side S3 and the image side S4 are both aspherical, wherein the object side S3 is convex at the near optical axis 110, and is convex at the circumference, and the image side S4 is at the near optical axis 110. Convex, convex at the circumference. The third lens L3 has negative refractive power, the object side S5 and the image side S6 are both aspherical, wherein the object side S5 is convex at the near optical axis 110, and is convex at the circumference, and the image side S6 is at the near optical axis 110. It is concave, and it is concave at the circumference. The fourth lens L4 has a positive refractive power, and its object side S7 and image side S8 are both aspherical, wherein the object side S7 is concave at the near optical axis 110, and is concave at the circumference, and the image side S8 is at the near optical axis 110. Convex at the circumference and concave at the circumference. The fifth lens L5 has a negative refractive power, and the object side S9 and the image side S10 are both aspherical surfaces, wherein the object side S9 is concave at the near optical axis 110, and is concave at the circumference, and the image side S10 is at the near optical axis 110. Concave and convex at the circumference. The sixth lens L6 has a negative refractive power, and its object side S11 and image side S12 are both aspherical surfaces, wherein the object side S11 is a convex surface at the near optical axis 110, and is concave at the circumference, and the image side S12 is at the near optical axis 110. Concave and convex at the circumference.

In this embodiment, the parameters of each lens in the optical imaging lens 100 are given in Table 9 and Table 10, wherein the definitions of the structures and parameters can be obtained from the first embodiment, which will not be repeated here.

Table 9

Table 10

Combining with the data in Table 9 and Table 10, it can be known that the optical imaging lens 100 in the fourth embodiment satisfies:

Table 11

It can be seen from FIG. 8 that the longitudinal spherical aberration, field curvature and distortion in the optical imaging lens 100 of the fourth embodiment are well controlled, so that the optical imaging lens 100 of this embodiment can achieve good imaging quality.

Embodiment 5

The optical imaging lens 100 of Embodiment 5 of the present application will be described below with reference to FIGS. 9 to 10 .

9 shows the structure of the optical imaging lens 100 in the fifth embodiment. The optical imaging lens 100 includes a first lens L1 , a second lens L2 , and a third lens L3 arranged in sequence from the object side to the image side along the optical axis 110 , the fourth lens L4, the fifth lens L5, the sixth lens L6, the infrared filter 120, and the imaging surface S15. The diaphragm STO is disposed between the image side surface S2 of the first lens L1 and the object side surface S3 of the second lens L2.

The first lens L1 has a negative refractive power, the object side S1 and the image side S2 are both aspherical, wherein the object side S1 is concave at the near-optical axis 110, and is concave at the circumference, and the image side S2 is at the near-optical axis. Concave at 110 and concave at the circumference. The second lens L2 has a positive refractive power, and the object side S3 and the image side S4 are both aspherical, wherein the object side S3 is convex at the near optical axis 110, and is convex at the circumference, and the image side S4 is at the near optical axis 110. Convex, convex at the circumference. The third lens L3 has negative refractive power, the object side S5 and the image side S6 are both aspherical, wherein the object side S5 is convex at the near optical axis 110, and is convex at the circumference, and the image side S6 is at the near optical axis 110. It is concave, and it is concave at the circumference. The fourth lens L4 has a positive refractive power, and its object side S7 and image side S8 are both aspherical, wherein the object side S7 is concave at the near optical axis 110, and is concave at the circumference, and the image side S8 is at the near optical axis 110. Convex, convex at the circumference. The fifth lens L5 has a positive refractive power, and the object side S9 and the image side S10 are both aspherical, wherein the object side S9 is concave at the near optical axis 110, and is concave at the circumference, and the image side S10 is at the near optical axis 110. Convex, convex at the circumference. The sixth lens L6 has a negative refractive power, and its object side S11 and image side S12 are both aspherical surfaces, wherein the object side S11 is a convex surface at the near optical axis 110, and is concave at the circumference, and the image side S12 is at the near optical axis 110. Concave and convex at the circumference.

In this embodiment, the parameters of each lens in the optical imaging lens 100 are given in Table 12 and Table 13, wherein the definitions of each structure and parameter can be obtained from the first embodiment, and are not repeated here.

Table 12

Table 13

Combining the data in Table 12 and Table 13, it can be known that the optical imaging lens 100 in the fifth embodiment satisfies:

Table 14

It can be seen from FIG. 10 that the longitudinal spherical aberration, field curvature and distortion in the optical imaging lens 100 of the fifth embodiment are well controlled, so that the optical imaging lens 100 of this embodiment can achieve good imaging quality.

Embodiment 6

The optical imaging lens 100 according to the sixth embodiment of the present application will be described below with reference to FIGS. 11 to 12 .

FIG. 11 shows the structure of the optical imaging lens 100 in the sixth embodiment. The optical imaging lens 100 includes a first lens L1 , a second lens L2 , and a third lens L3 sequentially arranged along the optical axis 110 from the object side to the image side , the fourth lens L4, the fifth lens L5, the sixth lens L6, the infrared filter 120, and the imaging surface S15. The diaphragm STO is disposed between the image side surface S2 of the first lens L1 and the object side surface S3 of the second lens L2.

The first lens L1 has a positive refractive power, the object side S1 and the image side S2 are both aspherical, wherein the object side S1 is concave at the near-optical axis 110, and is concave at the circumference, and the image side S2 is at the near-optical axis. Convex at 110 and concave at the circumference. The second lens L2 has a positive refractive power, and the object side S3 and the image side S4 are both aspherical, wherein the object side S3 is convex at the near optical axis 110, and is convex at the circumference, and the image side S4 is at the near optical axis 110. Convex, convex at the circumference. The third lens L3 has negative refractive power, the object side S5 and the image side S6 are both aspherical, wherein the object side S5 is convex at the near optical axis 110, and is convex at the circumference, and the image side S6 is at the near optical axis 110. It is concave, and it is concave at the circumference. The fourth lens L4 has a positive refractive power, and its object side S7 and image side S8 are both aspherical, wherein the object side S7 is concave at the near optical axis 110, and is concave at the circumference, and the image side S8 is at the near optical axis 110. Convex at the circumference and concave at the circumference. The fifth lens L5 has a negative refractive power, and the object side S9 and the image side S10 are both aspherical surfaces, wherein the object side S9 is concave at the near optical axis 110, and is concave at the circumference, and the image side S10 is at the near optical axis 110. Convex, convex at the circumference. The sixth lens L6 has a negative refractive power, and its object side S11 and image side S12 are both aspherical, wherein the object side S11 is a convex surface at the near optical axis 110, and is concave at the circumference, and the image side S12 is at the near optical axis 110. It is concave and convex at the circumference.

In this embodiment, the parameters of each lens in the optical imaging lens 100 are given in Table 15 and Table 16, wherein the definitions of the structures and parameters can be obtained from the first embodiment, which will not be repeated here.

Table 15

Table 16

Combining with the data in Table 15 and Table 16, it can be known that the optical imaging lens 100 in the sixth embodiment satisfies:

Table 17

It can be seen from FIG. 12 that the longitudinal spherical aberration, field curvature and distortion in the optical imaging lens 100 given in the sixth embodiment are well controlled, so that the optical imaging lens 100 of this embodiment can achieve good imaging quality.

As shown in FIG. 13 , an embodiment of the present application further provides an imaging device 200 , which includes the optical imaging lens 100 and a photosensitive element 210 as described above. The photosensitive surface of S17 coincides with the imaging surface S17. Specifically, the photosensitive element 210 may use a complementary metal oxide semiconductor (CMOS, Complementary Metal Oxide Semiconductor) image sensor or a charge-coupled element (CCD, Charge-coupled Device) image sensor.

The imaging device 200 in the embodiment of the present application adopts the above-mentioned optical imaging lens 100, and by reasonably configuring the refractive power, surface shape, and arrangement and combination order of the first lens L1 to the sixth lens L6, it is beneficial to eliminate the optical imaging lens. 100 internal aberrations, realize the mutual correction of the aberrations between the lenses, and improve the resolution of the optical imaging lens 100, so that it can well capture the details of the subject, obtain high-quality imaging, and improve imaging clarity. In addition, by limiting the maximum field of view angle range of the optical imaging lens 100, it has the characteristics of wide angle, so as to meet the shooting requirements for a large field of view range. Controlling TTL and Imgh to satisfy the above-mentioned conditional expression, and constraining the total optical length through the imaging surface size of the optical imaging lens with wide-angle characteristics, makes the optical imaging lens ultra-thin and meets the design requirements of miniaturization.

As shown in FIG. 14 , the present application further provides an electronic device 300 , which includes a casing 310 and the imaging device 200 as described above, and the imaging device 200 is installed on the casing 310 . Specifically, the imaging device 200 is disposed in the casing 310 and exposed from the casing 310 to acquire images. The casing 310 can provide the imaging device 200 with protection from dust, water and drop, and the like. A hole corresponding to the device 200 is formed, so that light can pass through the hole or pass through the casing 310 . The electronic device 300 is any device that has the function of acquiring images, for example, it can be any one of wearable devices such as mobile phones, tablet computers, notebook computers, personal digital assistants, smart bracelets, smart watches, etc. The imaging device 200 cooperates with the electronic device. The device 300 realizes image acquisition and reproduction of the target object.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial, The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or element It must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are more specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

An optical imaging lens, characterized in that, the optical imaging lens includes sequentially from an object side to an image side along an optical axis:

the first lens, having refractive power;

The second lens has a positive refractive power, the object side of the second lens is convex at the near optical axis, and the image side of the second lens is convex at the near optical axis;

The third lens has refractive power;

the fourth lens, with refractive power;

the fifth lens, with refractive power;

The sixth lens has a negative refractive power, and the image side surface of the sixth lens is concave at the near optical axis;

The optical imaging lens satisfies the following relationship:

100°<FOV<106°;

TTL/Imgh<1.3;

Wherein, FOV is the maximum field angle of the optical imaging lens, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and Imgh is the maximum field of view of the optical imaging lens Half of the image height corresponding to the field of view.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relationship:

|V5-V6|>20;

Wherein, V5 is the Abbe number of the fifth lens, and V6 is the Abbe number of the sixth lens.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relationship:

FNO≤2.4;

Wherein, FNO is the aperture number of the optical imaging lens.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relationship:

2<(R5+R6)/R6<3;

Wherein, R5 is the radius of curvature of the object side of the third lens at the optical axis, and R6 is the radius of curvature of the image side of the third lens at the optical axis.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relationship:

0.35<∑CT/TTL<0.7;

Wherein, ΣCT is the total thickness of each lens in the optical imaging lens at the optical axis, and TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relationship:

0.7<f12/f<1.5;

Wherein, f12 is the combined focal length of the first lens and the second lens, and f is the effective focal length of the optical imaging lens.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relationship:

2.5<|R7+R8|/|R7-R8|<5.5;

Wherein, R7 is the radius of curvature of the object side of the fourth lens at the optical axis, and R8 is the radius of curvature of the image side of the fourth lens at the optical axis.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relational expression:

0.25mm<ET3<0.5mm;

Wherein, ET3 is the distance from the third lens at the maximum effective aperture on the object side to the maximum effective aperture on the image side in the direction parallel to the optical axis.
The optical imaging lens according to claim 1, wherein the optical imaging lens satisfies the following relationship:

0.4mm<CT2<0.55mm;

Wherein, CT2 is the thickness of the second lens at the optical axis.
A device for capturing images, comprising:

The optical imaging lens of any one of claims 1 to 9;

The photosensitive element is arranged on the image side of the optical imaging lens.
An electronic device, comprising:

case;

The imaging device according to claim 10, wherein the imaging device is provided on the casing.