WO2021073275A1 - Optical imaging lens - Google Patents

Abstract

An optical imaging lens, which comprises sequentially from an object side to an image side along an optical axis: a first lens (E1) having a positive dioptric power; a second lens (E2) having a negative dioptric power; a third lens (E3) having a dioptric power, an object-side surface (S5) thereof being a convex surface, and an image-side surface (S6) being a concave surface; a fourth lens (E4) having a dioptric power; a fifth lens (E5) having a dioptric power; a sixth lens (E6) having a dioptric power; a seventh lens (E7) having a positive dioptric power; and an eighth lens (E8) having a negative dioptric power. ImgH, a half of the length of the diagonal of an effective pixel region on an imaging surface (S19) of the optical imaging lens satisfies: ImgH ≥ 5.2 mm; the effective focal length, f2, of the second lens (E2) and the effective focal length, f1, of the first lens (E1) satisfy −2 ≤ f2/f1 < 0.

Description

Optical imaging lens

Cross-references to related applications

This application claims the priority and rights of the Chinese patent application with the patent application number 201910988252.2 filed with the China National Intellectual Property Office (CNIPA) on October 17, 2019. The above Chinese patent application is incorporated herein by reference in its entirety.

Technical field

This application relates to the field of optical elements, and in particular, to an optical imaging lens.

Background technique

With the rapid development of science and technology, imaging lenses suitable for portable electronic products such as smart phones are changing with each passing day, and people have higher and higher requirements for the imaging quality of imaging lenses. With the development of miniaturization of portable electronic products such as smart phones, at the same time, the performance and size of electrical coupling devices (CCD) and complementary metal oxide semiconductor devices (CMOS) commonly used in imaging lenses of smart phones and other portable electronic products have increased. The corresponding optical imaging lens also needs to meet the requirements of high imaging quality.

Summary of the invention

One aspect of the present application provides such an optical imaging lens, which includes in order from the object side to the image side along the optical axis: a first lens with positive refractive power and a second lens with negative refractive power; The third lens with refractive power, the object side is convex, the image side is concave; the fourth lens with refractive power; the fifth lens with refractive power; the sixth lens with refractive power; the sixth lens with positive refractive power The seventh lens of degrees; the eighth lens with negative refractive power. Half ImgH of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens can satisfy: ImgH≥5.2mm.

In one embodiment, the effective focal length f2 of the second lens and the effective focal length f1 of the first lens may satisfy: -2≦f2/f1<0.

In one embodiment, the total effective focal length f of the optical imaging lens, the effective focal length f7 of the seventh lens, and the effective focal length f8 of the eighth lens may satisfy: 0.2<f/(f7-f8)<0.6.

In one embodiment, the radius of curvature R5 of the object side surface of the third lens and the radius of curvature R6 of the image side surface of the third lens may satisfy: 0.7<R5/R6<1.2.

In one embodiment, the radius of curvature R8 of the image side surface of the fourth lens and the radius of curvature R10 of the image side surface of the fifth lens may satisfy: 0.3<R8/R10<1.4.

In one embodiment, the total effective focal length f of the optical imaging lens, the radius of curvature R13 of the object side surface of the seventh lens, and the radius of curvature R16 of the image side surface of the eighth lens may satisfy: 0.3<f/(R13+R16)<0.8 .

In one embodiment, the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis TTL and half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH may satisfy: TTL/ ImgH<1.45.

In one embodiment, the separation distance T34 between the third lens and the fourth lens on the optical axis, the central thickness CT4 of the fourth lens on the optical axis and the separation distance T45 between the fourth lens and the fifth lens on the optical axis may be Satisfies: 0.8<T34/(CT4+T45)<1.3.

In one embodiment, the central thickness CT7 of the seventh lens on the optical axis, the separation distance T78 between the seventh lens and the eighth lens on the optical axis, and the central thickness CT8 of the fourth lens on the optical axis may satisfy: 0.6< CT7/(T78+CT8)<1.0.

In one embodiment, the maximum field of view FOV of the optical imaging lens may satisfy: 77°<FOV<82°.

In one embodiment, the combined focal length f123 of the first lens, the second lens, and the third lens and the total effective focal length f of the optical imaging lens may satisfy: 1.2<f123/f<1.7.

In one embodiment, the distance between the intersection of the object side surface of the sixth lens and the optical axis and the effective radius vertex of the object side of the sixth lens on the optical axis SAG61, the intersection point of the image side surface of the sixth lens and the optical axis to the distance of the sixth lens The distance between the apex of the effective radius of the image side surface on the optical axis SAG62 and the center thickness CT6 of the sixth lens may satisfy: -3.4<(SAG61+SAG62)/CT6<-2.0.

In one embodiment, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens, the entrance pupil diameter EPD of the optical imaging lens and the total effective focal length f of the optical imaging lens may satisfy: 2.7mm<ImgH× EPD/f<3.7mm.

In one embodiment, the distance between the intersection of the object side surface of the eighth lens and the optical axis and the effective radius vertex of the object side surface of the eighth lens on the optical axis SAG81 and the separation distance T78 between the seventh lens and the eighth lens on the optical axis It can satisfy: -1.2<SAG81/T78<-0.7.

Through the above configuration, the optical imaging lens according to the present application can have at least one beneficial effect such as a large image area, miniaturization, and high imaging quality.

Description of the drawings

By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes, and advantages of the present application will become more apparent:

Fig. 1 shows a schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application;

2A to 2D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 1;

FIG. 3 shows a schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application;

4A to 4D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 2;

FIG. 5 shows a schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application;

6A to 6D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 3;

FIG. 7 shows a schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application;

8A to 8D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 4;

FIG. 9 shows a schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application;

10A to 10D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 5;

FIG. 11 shows a schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application;

12A to 12D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 6;

FIG. 13 shows a schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application;

14A to 14D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Embodiment 7;

FIG. 15 shows a schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application;

16A to 16D respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and magnification chromatic aberration curve of the optical imaging lens of Example 8.

Detailed ways

In order to better understand the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that in this specification, expressions such as first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any restriction on the feature. Therefore, without departing from the teachings of the present application, the first lens discussed below may also be referred to as a second lens or a third lens.

In the drawings, the thickness, size, and shape of the lens have been slightly exaggerated for ease of description. Specifically, the shape of the spherical or aspherical surface shown in the drawings is shown by way of example. That is, the shape of the spherical surface or the aspheric surface is not limited to the shape of the spherical surface or the aspheric surface shown in the drawings. The drawings are only examples and are not drawn strictly to scale.

In this article, the paraxial area refers to the area near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is at least in the paraxial region. Concave. The surface of each lens closest to the object is called the object side of the lens, and the surface of each lens closest to the imaging surface is called the image side of the lens.

It should also be understood that the terms "including", "including", "having", "including" and/or "including", when used in this specification, mean that the stated features, elements and/or components are present , But does not exclude the presence or addition of one or more other features, elements, components and/or their combination. In addition, when expressions such as "at least one of" appear after the list of listed features, the entire listed feature is modified instead of individual elements in the list. In addition, when describing the embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having meanings consistent with their meanings in the context of related technologies, and will not be interpreted in an idealized or excessively formal sense unless This is clearly defined in this article.

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with the embodiments.

The features, principles and other aspects of the application will be described in detail below.

The optical imaging lens according to the exemplary embodiment of the present application may include eight lenses with optical power, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. Lens and eighth lens. The eight lenses are arranged in order from the object side to the image side along the optical axis. Any two adjacent lenses among the first lens to the eighth lens may have an interval distance between them.

In an exemplary embodiment, the first lens may have a positive refractive power; the second lens may have a negative refractive power; the third lens may have a positive refractive power or a negative refractive power, the object side may be convex, and the image side may be Concave surface; the fourth lens has positive refractive power or negative refractive power; the fifth lens has positive refractive power or negative refractive power; the sixth lens has positive refractive power or negative refractive power; the seventh lens may have positive refractive power; The eighth lens may have negative refractive power.

The first lens has a positive refractive power, which can facilitate the convergence of incident light. The second lens has a negative refractive power, which can help reduce the incident angle of light, balance the spherical aberration generated by the first lens, and improve the on-axis imaging quality. The third lens has a convex-concave surface, which can help shorten the position of the diaphragm, reduce pupil aberration, and improve imaging quality. The seventh lens has positive refractive power, which can help balance the astigmatism generated by the front and rear components of the optical imaging lens. The eighth lens has a negative refractive power, which can help improve the angle of incidence of light on the imaging surface.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: ImgH≧5.2 mm, where ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens. Satisfying ImgH≥5.2mm can enable the optical imaging lens to acquire more scene content and enrich imaging information.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -2≦f2/f1<0, where f2 is the effective focal length of the second lens, and f1 is the effective focal length of the first lens. More specifically, f2 and f1 may further satisfy: -2≤f2/f1<-1.6. Satisfying -2≤f2/f1＜0 can reduce the deflection angle of the light and improve the imaging quality of the optical imaging lens.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.2<f/(f7-f8)<0.6, where f is the total effective focal length of the optical imaging lens, and f7 is the effective focal length of the seventh lens, f8 is the effective focal length of the eighth lens. Satisfying 0.2<f/(f7-f8)<0.6 can effectively reduce the thickness sensitivity of the optical imaging lens, which is beneficial to correct the curvature of field.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.7<R5/R6<1.2, where R5 is the radius of curvature of the object side surface of the third lens, and R6 is the radius of curvature of the image side surface of the third lens . Satisfying 0.7<R5/R6<1.2, the incident angle of the central field of view light when reaching the object side and image side of the third lens can be small, and the MTF tolerance sensitivity of the central field of view can be reduced.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.3<R8/R10<1.4, where R8 is the radius of curvature of the image side surface of the fourth lens, and R10 is the radius of curvature of the image side surface of the fifth lens . Satisfying 0.3<R8/R10<1.4, the size of the incident angle of the edge field of view on the fifth lens can be controlled, which is beneficial to control the external field of view aberration.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.3<f/(R13+R16)<0.8, where f is the total effective focal length of the optical imaging lens, and R13 is the object side of the seventh lens The radius of curvature, R16 is the radius of curvature of the image side surface of the eighth lens. Satisfying 0.3<f/(R13+R16)<0.8 can make the coma aberration between the on-axis field of view and the off-axis field of view smaller, so that the optical imaging lens has good imaging quality.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: TTL/ImgH<1.45, where 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 optical axis. Half of the diagonal length of the effective pixel area on the imaging surface of the imaging lens. Satisfying TTL/ImgH<1.45 can help reduce the total length of the optical imaging lens and realize the characteristics of ultra-thin and miniaturization.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.8<T34/(CT4+T45)<1.3, where T34 is the separation distance between the third lens and the fourth lens on the optical axis, and CT4 is The center thickness of the fourth lens on the optical axis, T45 is the separation distance between the fourth lens and the fifth lens on the optical axis. Satisfying 0.8<T34/(CT4+T45)<1.3 can effectively ensure the field curvature of the optical imaging lens, so that the off-axis field of view of the optical imaging lens can obtain good imaging quality.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.6<CT7/(T78+CT8)<1.0, where CT7 is the central thickness of the seventh lens on the optical axis, and T78 is the seventh lens and The separation distance of the eighth lens on the optical axis, CT8 is the center thickness of the fourth lens on the optical axis. Satisfying 0.6<CT7/(T78+CT8)<1.0, the distortion size of the optical imaging lens can be controlled reasonably, so that the optical imaging lens has good imaging quality.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 77°<FOV<82°, where FOV is the maximum angle of view of the optical imaging lens. Satisfying 77°<FOV<82° can help control the optical imaging lens to collect object information reasonably.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.2<f123/f<1.7, where f123 is the combined focal length of the first lens, the second lens, and the third lens, and f is the focal length of the optical imaging lens Total effective focal length. Satisfying 1.2<f123/f<1.7 can constrain the on-axis spherical aberration generated by the optical imaging lens within a reasonable interval and ensure the imaging quality of the on-axis field of view.

In an exemplary embodiment, the optical imaging lens according to the present application can satisfy: -3.4<(SAG61+SAG62)/CT6<-2.0, where SAG61 is the intersection of the object side surface of the sixth lens and the optical axis to the sixth lens The distance between the apex of the effective radius of the object side on the optical axis, SAG62 is the distance from the intersection of the image side of the sixth lens and the optical axis to the apex of the effective radius of the image side of the sixth lens on the optical axis, CT6 is the center of the sixth lens thickness. Satisfying -3.4＜(SAG61+SAG62)/CT6＜-2.0 can not only help reduce the sensitivity of the sixth lens, ensure the processing and shaping of the sixth lens, but also help to better balance the miniaturization and axis of the optical imaging lens The relationship between the relative illuminance of the external field of view.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 2.7mm<ImgH×EPD/f<3.7mm, where ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens , EPD is the entrance pupil diameter of the optical imaging lens, and f is the total effective focal length of the optical imaging lens. More specifically, ImgH, EPD, and f may further satisfy: 2.8mm<ImgH×EPD/f<3.6mm. Satisfying 2.7mm<ImgH×EPD/f<3.7mm can not only help realize the miniaturization and ultra-thin characteristics of the optical imaging lens, but also control the off-axis phase contrast value within a reasonable range.

In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -1.2<SAG81/T78<-0.7, where SAG81 is the effective distance from the intersection of the object side surface of the eighth lens and the optical axis to the object side surface of the eighth lens The distance between the apex of the radius on the optical axis, T78 is the separation distance between the seventh lens and the eighth lens on the optical axis. Satisfying -1.2<SAG81/T78<-0.7 is beneficial to control the astigmatism and off-axis aberrations of field curvature of the optical imaging lens and improve the imaging quality of the off-axis field of view.

In an exemplary embodiment, the optical imaging lens according to the present application further includes a diaphragm provided between the object side and the first lens. Optionally, the above-mentioned optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting the photosensitive element on the imaging surface.

The optical imaging lens according to the above-mentioned embodiment of the present application may use multiple lenses, for example, the above-mentioned eight lenses. By reasonably distributing the optical power, surface shape, center thickness of each lens, and the on-axis distance between each lens, it can effectively converge the incident light, reduce the total optical length of the imaging lens and improve the workability of the imaging lens , Making the optical imaging lens more conducive to production and processing. The optical imaging lens configured as described above may have characteristics such as a large image surface, a large viewing angle, and high imaging quality.

In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspheric mirror surface, that is, at least one of the object side surface of the first lens to the image side surface of the eighth lens is an aspheric mirror surface. The characteristic of an aspheric lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspheric lens has better curvature radius characteristics, and has the advantages of improving distortion and astigmatism. After the aspheric lens is used, the aberrations that occur during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, and the eighth lens It is an aspherical mirror surface. Optionally, the object side and the image side of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, and the eighth lens are aspherical lenses. surface.

However, those skilled in the art should understand that without departing from the technical solution claimed in this application, the number of lenses constituting the optical imaging lens can be changed to obtain the various results and advantages described in this specification. For example, although eight lenses have been described as an example in the embodiment, the optical imaging lens is not limited to including eight lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

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

Example 1

The optical imaging lens according to Embodiment 1 of the present application will be described below with reference to FIGS. 1 to 2D. Fig. 1 shows a schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application.

As shown in Figure 1, the optical imaging lens includes in order from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

Table 1 shows the basic parameter table of the optical imaging lens of Embodiment 1, wherein the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm).

Table 1

In this example, the total effective focal length f of the optical imaging lens is 6.34mm, and the total length of the optical imaging lens is TTL (that is, the distance from the object side S1 of the first lens E1 to the imaging surface S19 of the optical imaging lens on the optical axis ) Is 7.79mm, the diagonal half ImgH of the effective pixel area on the imaging surface S19 of the optical imaging lens is 5.64mm, and the maximum field of view FOV of the optical imaging lens is 80.1°.

In Embodiment 1, the object side and image side of any one of the first lens E1 to the eighth lens E8 are aspherical surfaces, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface 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 direction; c is the paraxial curvature of the aspheric surface, c=1/R (that is, the paraxial curvature c is the above table The reciprocal of the radius of curvature R in 1); k is the conic coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. _{Table 2 below shows the high-order coefficients A 4} , A ₆ , A ₈ , A ₁₀ , A ₁₂ , A ₁₄ , A ₁₆ , A ₁₈ and A ₂₀ that can be used for each aspheric mirror S1-S16 in Example 1. .

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.2319E-02	-1.1960E-02	5.4850E-03	-2.3500E-03	9.1600E-04	-2.9000E-04	6.5000E-05	-8.6000E-06	4.1188E-07
S2	-2.5400E-02	2.2850E-02	-1.6870E-02	9.3600E-03	-3.1100E-03	3.4300E-04	1.0300E-04	-3.6000E-05	3.2745E-06
S3	-3.0230E-02	3.4033E-02	-3.3290E-02	2.4841E-02	-1.2880E-02	4.4490E-03	-1.0000E-03	1.3800E-04	-8.9486E-06
S4	-2.2000E-03	2.0252E-02	-3.0330E-02	2.3901E-02	-1.1590E-02	3.1160E-03	-1.5000E-04	-1.3000E-04	2.3711E-05
S5	-1.3800E-03	3.9820E-03	-8.7300E-03	5.4940E-03	-1.2300E-03	6.9600E-05	1.7700E-04	-9.8000E-05	1.5461E-05
S6	-6.3800E-03	2.5560E-03	2.5770E-03	-4.9600E-03	5.5780E-03	-3.1000E-03	1.1410E-03	-2.7000E-04	3.1266E-05
S7	-2.3880E-02	-7.4700E-03	1.7230E-02	-3.4130E-02	3.8935E-02	-2.7420E-02	1.1731E-02	-2.7900E-03	2.8473E-04
S8	-2.7440E-02	-7.2000E-04	2.5150E-03	-6.1400E-03	5.8470E-03	-3.2100E-03	1.0750E-03	-2.0000E-04	1.6739E-05
S9	-3.0000E-23	6.4400E-34	-8.4000E-45	6.6400E-56	-3.3000E-67	1.0400E-78	-2.0000E-90	2.2000E-102	-1.0101E-114
S10	1.9400E-15	-7.2000E-15	1.2700E-14	-1.2000E-14	6.5500E-15	-2.1000E-15	3.6800E-16	-3.5000E-17	1.3008E-18
S11	-4.3000E-02	1.1592E-02	-4.1900E-03	5.3700E-04	1.6500E-04	-1.2000E-04	3.8700E-05	-6.7000E-06	4.4233E-07
S12	-4.8860E-02	1.5186E-02	-5.4100E-03	1.7180E-03	-5.1000E-04	1.2200E-04	-1.8000E-05	1.3800E-06	-4.1707E-08
S13	-9.7500E-03	-7.3000E-04	2.6700E-04	6.2500E-06	-3.3000E-05	7.5400E-06	-7.9000E-07	4.7600E-08	-1.3705E-09
S14	5.1990E-03	-3.5200E-03	7.2200E-04	-6.4000E-05	-4.1000E-06	9.7800E-07	-1.8000E-08	-3.7000E-09	1.5809E-10
S15	-4.0780E-02	8.9670E-03	-1.2900E-03	1.4700E-04	-1.2000E-05	6.5000E-07	-2.2000E-08	4.0800E-10	-3.2712E-12
S16	-1.5630E-02	2.5350E-03	-2.2000E-04	6.2700E-06	5.9500E-07	-6.7000E-08	2.8100E-09	-5.6000E-11	4.4467E-13

Table 2

FIG. 2A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 1, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens. 2B shows the astigmatism curve of the optical imaging lens of Example 1, which represents meridional field curvature and sagittal field curvature. FIG. 2C shows a distortion curve of the optical imaging lens of Embodiment 1, which represents the distortion magnitude values corresponding to different image heights. FIG. 2D shows the chromatic aberration curve of magnification of the optical imaging lens of Embodiment 1, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 2A to 2D, it can be seen that the optical imaging lens provided in Embodiment 1 can achieve good imaging quality.

Example 2

The optical imaging lens according to Embodiment 2 of the present application will be described below with reference to FIGS. 3 to 4D. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. FIG. 3 shows a schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application.

As shown in Figure 3, the optical imaging lens from the object side to the image side includes: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

In this example, the total effective focal length f of the optical imaging lens is 5.78mm, the total length TTL of the optical imaging lens is 7.20mm, and the half of the diagonal length ImgH of the effective pixel area on the imaging surface S19 of the optical imaging lens is 5.20mm , The maximum field of view FOV of the optical imaging lens is 80.1°.

Table 3 shows the basic parameter table of the optical imaging lens of Embodiment 2, wherein the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 4 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 2, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.

table 3

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	5.3919E-02	-1.8560E-02	1.2147E-02	-9.0300E-03	6.3689E-03	-3.3500E-03	1.1380E-03	-2.2000E-04	1.7100E-05
S2	-4.3400E-02	7.9424E-02	-1.1753E-01	1.2437E-01	-8.8841E-02	4.1890E-02	-1.2570E-02	2.1780E-03	-1.6000E-04
S3	-4.8930E-02	1.0187E-01	-1.6659E-01	1.8895E-01	-1.4431E-01	7.3016E-02	-2.3560E-02	4.3900E-03	-3.6000E-04

S4	-8.9000E-03	5.9128E-02	-1.1838E-01	1.3893E-01	-1.0670E-01	5.3016E-02	-1.5730E-02	2.3560E-03	-1.1000E-04
S5	-5.9300E-03	1.9787E-02	-4.1150E-02	4.2749E-02	-2.6223E-02	9.7320E-03	-1.0200E-03	-5.7000E-04	1.4900E-04
S6	-8.2900E-03	3.4580E-03	8.7590E-03	-2.2260E-02	3.2072E-02	-2.5760E-02	1.2764E-02	-3.6100E-03	4.4300E-04
S7	-3.2540E-02	-1.1830E-02	3.0605E-02	-6.9430E-02	9.2829E-02	-7.6900E-02	3.8777E-02	-1.0870E-02	1.3060E-03
S8	-3.5560E-02	-3.3900E-03	6.2460E-03	-1.3070E-02	1.3761E-02	-8.5800E-03	3.2670E-03	-7.0000E-04	6.5100E-05
S9	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00	0.0000E+00
S10	-4.7000E-15	2.6500E-14	-4.9000E-14	4.4600E-14	-2.1598E-14	5.5500E-15	-6.3000E-16	-2.3000E-18	4.3700E-18
S11	-5.1300E-02	1.4456E-02	-5.2400E-03	-6.7000E-04	1.3652E-03	-6.3000E-04	1.7400E-04	-2.9000E-05	2.0500E-06
S12	-6.0930E-02	2.2501E-02	-9.0800E-03	2.8600E-03	-8.4957E-04	2.3300E-04	-4.3000E-05	4.0800E-06	-1.5000E-07
S13	-1.4540E-02	4.5200E-04	-2.9000E-04	3.5100E-04	-2.1840E-04	5.8200E-05	-8.2000E-06	6.0300E-07	-1.8000E-08
S14	4.6700E-03	-4.5200E-03	1.1390E-03	-1.1000E-04	-2.0652E-05	6.5500E-06	-6.7000E-07	3.0100E-08	-5.0000E-10
S15	-5.6250E-02	1.6243E-02	-3.0800E-03	4.2800E-04	-4.0348E-05	2.4600E-06	-9.2000E-08	1.9300E-09	-1.7000E-11
S16	-2.1920E-02	4.7900E-03	-6.1000E-04	4.3300E-05	-1.1892E-06	-4.1000E-08	4.0800E-09	-1.1000E-10	1.1300E-12

Table 4

FIG. 4A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 2, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens. 4B shows the astigmatism curve of the optical imaging lens of Example 2, which represents meridional field curvature and sagittal field curvature. FIG. 4C shows a distortion curve of the optical imaging lens of Embodiment 2, which represents the distortion magnitude values corresponding to different image heights. 4D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 2, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 4A to 4D that the optical imaging lens provided in Embodiment 2 can achieve good imaging quality.

Example 3

The optical imaging lens according to Embodiment 3 of the present application is described below with reference to FIGS. 5 to 6D. FIG. 5 shows a schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application.

As shown in Figure 5, the optical imaging lens from the object side to the image side includes: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a negative refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

In this example, the total effective focal length f of the optical imaging lens is 5.91mm, the total length of the optical imaging lens TTL is 7.49mm, and the half of the diagonal length of the effective pixel area on the imaging surface S19 of the optical imaging lens ImgH is 5.40mm , The maximum field of view FOV of the optical imaging lens is 80.1°.

Table 5 shows the basic parameter table of the optical imaging lens of Example 3, in which the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 6 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 3, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.

table 5

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.8038E-02	-1.5000E-02	8.4647E-03	-5.1900E-03	3.1550E-03	-1.5000E-03	4.7300E-04	-8.5000E-05	6.1700E-06
S2	-6.1000E-02	1.5167E-01	-2.4693E-01	2.6058E-01	-1.7942E-01	8.0305E-02	-2.2590E-02	3.6250E-03	-2.5000E-04
S3	-6.0570E-02	1.5476E-01	-2.6026E-01	2.8217E-01	-2.0040E-01	9.3010E-02	-2.7230E-02	4.5620E-03	-3.3000E-04
S4	-6.5800E-03	4.4236E-02	-8.1554E-02	8.6155E-02	-5.7870E-02	2.3933E-02	-5.1400E-03	2.5600E-04	5.7700E-05
S5	-4.8900E-03	1.0279E-02	-1.5528E-02	6.8880E-03	6.0990E-03	-9.8800E-03	6.3420E-03	-2.0500E-03	2.6300E-04
S6	-7.6200E-03	3.2010E-03	5.1082E-03	-1.1550E-02	1.5374E-02	-1.1240E-02	5.1790E-03	-1.3900E-03	1.6300E-04
S7	-2.9960E-02	-7.8400E-03	1.5751E-02	-3.1110E-02	3.7160E-02	-2.7880E-02	1.2883E-02	-3.3300E-03	3.7200E-04
S8	-3.3540E-02	-4.7400E-03	9.3497E-03	-1.4970E-02	1.3841E-02	-7.8100E-03	2.6940E-03	-5.2000E-04	4.3700E-05
S9	-3.7000E-23	8.9100E-34	-1.3182E-44	1.1900E-55	-6.8000E-67	2.4200E-78	-5.3000E-90	6.6000E-102	-3.0000E-114
S10	4.2700E-16	-3.9000E-15	1.0102E-14	-1.2000E-14	7.3800E-15	-2.7000E-15	5.7400E-16	-6.6000E-17	3.1500E-18
S11	-4.5050E-02	1.1046E-02	-5.0474E-03	1.9170E-03	-1.0700E-03	4.9300E-04	-1.2000E-04	1.5200E-05	-7.2000E-07
S12	-5.4730E-02	1.6559E-02	-4.7342E-03	7.7300E-04	-1.3000E-04	4.8400E-05	-1.2000E-05	1.3500E-06	-5.3000E-08
S13	-1.2060E-02	-5.3000E-04	7.6058E-04	-1.9000E-04	-2.3000E-05	1.5100E-05	-2.5000E-06	1.7600E-07	-4.4000E-09
S14	4.9570E-03	-3.7100E-03	8.5319E-04	-7.2000E-05	-1.2000E-05	3.5200E-06	-3.4000E-07	1.4700E-08	-2.5000E-10
S15	-5.3120E-02	1.5328E-02	-2.9669E-03	4.1100E-04	-3.8000E-05	2.1800E-06	-7.8000E-08	1.5500E-09	-1.3000E-11
S16	-2.1080E-02	4.6240E-03	-5.9757E-04	4.4700E-05	-1.8000E-06	2.4300E-08	6.8700E-10	-2.9000E-11	2.9000E-13

Table 6

FIG. 6A shows an axial chromatic aberration curve of the optical imaging lens of Embodiment 3, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens. Fig. 6B shows the astigmatism curve of the optical imaging lens of Example 3, which represents meridional field curvature and sagittal field curvature. FIG. 6C shows a distortion curve of the optical imaging lens of Embodiment 3, which represents the distortion magnitude values corresponding to different image heights. 6D shows the chromatic aberration curve of magnification of the optical imaging lens of Embodiment 3, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 6A to 6D that the optical imaging lens provided in Embodiment 3 can achieve good imaging quality.

Example 4

The optical imaging lens according to Embodiment 4 of the present application is described below with reference to FIGS. 7 to 8D. FIG. 7 shows a schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application.

As shown in Fig. 7, the optical imaging lens includes in order from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a concave surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

In this example, the total effective focal length f of the optical imaging lens is 6.32mm, the total length of the optical imaging lens TTL is 7.85mm, and the half of the diagonal length of the effective pixel area on the imaging surface S19 of the optical imaging lens ImgH is 5.50mm , The maximum field of view FOV of the optical imaging lens is 78.1°.

Table 7 shows the basic parameter table of the optical imaging lens of Embodiment 4, wherein the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 8 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 4, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.

Table 7

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	4.2010E-02	-1.2026E-02	6.3670E-03	-3.7200E-03	2.0940E-03	-9.0000E-04	2.5000E-04	-3.9000E-05	2.5200E-06
S2	-3.6830E-02	6.5799E-02	-9.0910E-02	8.6159E-02	-5.3880E-02	2.1935E-02	-5.6200E-03	8.2100E-04	-5.2000E-05
S3	-4.2910E-02	8.5000E-02	-1.2648E-01	1.2649E-01	-8.3490E-02	3.5988E-02	-9.7700E-03	1.5160E-03	-1.0000E-04
S4	-8.9000E-03	4.5380E-02	-7.7630E-02	7.8040E-02	-5.0120E-02	2.0126E-02	-4.5900E-03	4.6500E-04	-3.8000E-06
S5	-4.7200E-03	1.2803E-02	-2.1520E-02	1.7135E-02	-6.4800E-03	1.2300E-04	1.1540E-03	-4.8000E-04	6.4700E-05
S6	-6.9600E-03	3.2797E-03	3.4530E-03	-8.6100E-03	1.1093E-02	-7.7000E-03	3.2910E-03	-8.0000E-04	8.5000E-05
S7	-2.5080E-02	-8.5472E-03	1.7051E-02	-3.1490E-02	3.4969E-02	-2.4240E-02	1.0275E-02	-2.4300E-03	2.4800E-04
S8	-2.6330E-02	-4.2394E-03	6.6660E-03	-9.9100E-03	8.5210E-03	-4.5000E-03	1.4600E-03	-2.7000E-04	2.1400E-05
S9	-3.1000E-23	6.6322E-34	-8.7000E-45	7.0000E-56	-3.5000E-67	1.1200E-78	-2.2000E-90	2.4000E-102	-1.0000E-114
S10	-3.0000E-15	1.4927E-14	-2.3000E-14	1.5100E-14	-3.5000E-15	-6.2000E-16	4.9900E-16	-9.7000E-17	6.4600E-18
S11	-4.1430E-02	1.0013E-02	-4.5400E-03	2.0760E-03	-1.0900E-03	4.3500E-04	-1.0000E-04	1.1600E-05	-5.2000E-07
S12	-4.6960E-02	1.3343E-02	-4.2900E-03	1.3270E-03	-4.5000E-04	1.3300E-04	-2.4000E-05	2.3500E-06	-9.0000E-08
S13	-1.0130E-02	-1.1465E-04	1.1400E-04	5.4500E-05	-5.7000E-05	1.5500E-05	-2.1000E-06	1.5400E-07	-4.5000E-09
S14	4.5030E-03	-3.2277E-03	7.3600E-04	-9.2000E-05	2.3500E-06	5.8300E-07	-4.8000E-08	7.0200E-10	2.1300E-11
S15	-4.8760E-02	1.3132E-02	-2.3300E-03	2.9900E-04	-2.6000E-05	1.4300E-06	-4.9000E-08	9.2500E-10	-7.5000E-12
S16	-1.9810E-02	4.2419E-03	-5.6000E-04	4.7700E-05	-2.6000E-06	8.5500E-08	-1.7000E-09	1.7600E-11	-7.1000E-14

Table 8

FIG. 8A shows the on-axis chromatic aberration curve of the optical imaging lens of Embodiment 4, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens. FIG. 8B shows the astigmatism curve of the optical imaging lens of Example 4, which represents meridional field curvature and sagittal field curvature. FIG. 8C shows a distortion curve of the optical imaging lens of Embodiment 4, which represents the distortion magnitude values corresponding to different image heights. FIG. 8D shows the chromatic aberration curve of magnification of the optical imaging lens of Embodiment 4, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 8A to 8D that the optical imaging lens provided in Embodiment 4 can achieve good imaging quality.

Example 5

The optical imaging lens according to Embodiment 5 of the present application is described below with reference to FIGS. 9 to 10D. FIG. 9 shows a schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application.

As shown in FIG. 9, the optical imaging lens includes in order from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a negative refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a convex surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, the object side surface S9 is a convex surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

In this example, the total effective focal length f of the optical imaging lens is 6.37mm, the total length of the optical imaging lens TTL is 7.98mm, and the half of the diagonal length of the effective pixel area on the imaging surface S19 of the optical imaging lens ImgH is 5.80mm , The maximum field of view FOV of the optical imaging lens is 80.0°.

Table 9 shows the basic parameter table of the optical imaging lens of Embodiment 5, wherein the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 10 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 5, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.

Table 9

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	3.9031E-02	-1.2010E-02	6.9510E-03	-3.9000E-03	1.6740E-03	-4.5000E-04	6.1114E-05	-1.1908E-06	-4.2272E-07
S2	-1.9620E-02	1.7784E-02	-1.8020E-02	1.8501E-02	-1.4170E-02	7.1720E-03	-2.2537E-03	3.9724E-04	-2.9977E-05
S3	-2.9530E-02	3.5725E-02	-4.1940E-02	4.3180E-02	-3.2730E-02	1.6707E-02	-5.3971E-03	9.9196E-04	-7.8676E-05
S4	-1.1270E-02	6.1262E-02	-1.2108E-01	1.5287E-01	-1.3133E-01	7.4516E-02	-2.6368E-02	5.2343E-03	-4.4180E-04
S5	-1.2430E-02	4.6582E-02	-9.5750E-02	1.2142E-01	-1.0309E-01	5.8046E-02	-2.0378E-02	3.9962E-03	-3.3149E-04
S6	-1.2930E-02	1.6436E-02	-1.7140E-02	1.7363E-02	-1.1950E-02	5.9110E-03	-1.9128E-03	3.5444E-04	-2.8247E-05
S7	-2.8670E-02	7.9130E-03	-1.9260E-02	2.5723E-02	-2.4680E-02	1.5549E-02	-6.0760E-03	1.3345E-03	-1.2427E-04

S8	-2.7090E-02	9.4910E-03	-1.6250E-02	1.7686E-02	-1.3880E-02	7.1630E-03	-2.2725E-03	4.0290E-04	-3.0454E-05
S9	2.2900E-17	-1.0000E-16	1.7500E-16	-1.5000E-16	7.2600E-17	-1.9000E-17	2.1418E-18	-2.0431E-20	-1.0871E-20
S10	3.8840E-03	-4.9000E-03	2.9970E-03	-1.3600E-03	5.5700E-04	-1.8000E-04	3.9813E-05	-4.9211E-06	2.6099E-07
S11	-3.7580E-02	1.1591E-02	-5.2300E-03	1.1170E-03	4.8100E-05	-1.1000E-04	3.6275E-05	-5.3995E-06	3.0626E-07
S12	-4.9270E-02	1.8638E-02	-7.8000E-03	2.2830E-03	-4.4000E-04	4.2300E-05	2.1353E-06	-9.2269E-07	6.1359E-08
S13	-1.0480E-02	1.9110E-03	-1.1300E-03	4.3400E-04	-1.2000E-04	2.2200E-05	-2.4644E-06	1.5573E-07	-4.1958E-09
S14	3.0330E-03	-1.7700E-03	2.3800E-04	-1.3000E-06	-6.9000E-06	1.2300E-06	-9.2937E-08	3.2701E-09	-4.3320E-11
S15	-4.5900E-02	1.1665E-02	-1.9900E-03	2.5000E-04	-2.1000E-05	1.1500E-06	-3.8309E-08	7.1845E-10	-5.7869E-12
S16	-1.7490E-02	3.2100E-03	-3.7000E-04	2.5500E-05	-8.3000E-07	-1.9000E-09	1.0180E-09	-2.9154E-11	2.7224E-13

Table 10

FIG. 10A shows the on-axis chromatic aberration curve of the optical imaging lens of Embodiment 5, which represents the deviation of the focal point of light rays of different wavelengths after passing through the lens. 10B shows the astigmatism curve of the optical imaging lens of Example 5, which represents meridional field curvature and sagittal field curvature. FIG. 10C shows a distortion curve of the optical imaging lens of Embodiment 5, which represents the distortion magnitude values corresponding to different image heights. FIG. 10D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 5, which represents the deviation of different image heights on the imaging surface after light passes through the lens. It can be seen from FIGS. 10A to 10D that the optical imaging lens provided in Embodiment 5 can achieve good imaging quality.

Example 6

The optical imaging lens according to Embodiment 6 of the present application is described below with reference to FIGS. 11 to 12D. FIG. 11 shows a schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application.

As shown in Figure 11, the optical imaging lens from the object side to the image side includes: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex. The sixth lens E6 has a negative refractive power, the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

In this example, the total effective focal length f of the optical imaging lens is 6.61mm, the total length of the optical imaging lens TTL is 8.29mm, and the half of the diagonal length of the effective pixel area on the imaging surface S19 of the optical imaging lens ImgH is 6.00mm , The maximum field of view FOV of the optical imaging lens is 80.0°.

Table 11 shows the basic parameter table of the optical imaging lens of Embodiment 6, wherein the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 12 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 6, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.

Table 11

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	3.4992E-02	-8.7400E-03	3.7830E-03	-1.6919E-03	7.4943E-04	-2.7000E-04	6.6800E-05	-9.5000E-06	5.5104E-07
S2	-4.7420E-02	1.0127E-01	-1.3722E-01	1.1802E-01	-6.5296E-02	2.3237E-02	-5.1600E-03	6.5000E-04	-3.5499E-05
S3	-4.7600E-02	1.0135E-01	-1.3983E-01	1.2262E-01	-6.9526E-02	2.5506E-02	-5.8600E-03	7.7000E-04	-4.3974E-05
S4	-4.3400E-03	2.3253E-02	-3.3750E-02	2.8182E-02	-1.4626E-02	4.4630E-03	-6.2000E-04	-1.6000E-05	1.0594E-05
S5	-3.1400E-03	2.9160E-03	-2.6100E-03	-1.1967E-03	3.9023E-03	-3.1100E-03	1.3610E-03	-3.2000E-04	3.1994E-05
S6	-5.8400E-03	1.8450E-03	2.1450E-03	-3.1924E-03	3.3423E-03	-1.9100E-03	7.0300E-04	-1.5000E-04	1.4889E-05
S7	-1.9110E-02	-4.4000E-03	4.1280E-03	-6.4047E-03	6.0918E-03	-3.6900E-03	1.3990E-03	-3.0000E-04	2.7329E-05
S8	-1.8040E-02	-3.8600E-03	4.2310E-03	-5.5447E-03	4.2521E-03	-2.0000E-03	5.7500E-04	-9.3000E-05	6.4209E-06
S9	-2.6000E-23	5.0800E-34	-6.0000E-45	4.3155E-56	-1.9548E-67	5.5900E-79	-9.8000E-91	9.6000E-103	-4.0521E-115
S10	2.8700E-15	-7.4000E-15	5.7500E-15	-1.0191E-16	-2.0886E-15	1.2100E-15	-3.1000E-16	3.8800E-17	-1.9297E-18
S11	-3.5860E-02	8.4010E-03	-2.6300E-03	2.2754E-04	1.2303E-04	-6.4000E-05	1.7300E-05	-2.5000E-06	1.4792E-07
S12	-4.1430E-02	1.2096E-02	-3.8800E-03	1.0142E-03	-2.4047E-04	4.6000E-05	-5.5000E-06	3.1500E-07	-5.5080E-09
S13	-1.0620E-02	5.9300E-04	8.6500E-05	-4.0914E-05	9.5991E-07	4.2100E-07	-3.4000E-08	2.5200E-10	6.4107E-11
S14	3.2360E-03	-2.4800E-03	6.1300E-04	-1.1108E-04	1.5360E-05	-1.7000E-06	1.3300E-07	-5.9000E-09	1.0574E-10
S15	-4.2340E-02	1.1080E-02	-1.9200E-03	2.2726E-04	-1.7377E-05	8.4100E-07	-2.5000E-08	4.1400E-10	-2.9445E-12
S16	-1.5900E-02	3.1930E-03	-3.9000E-04	2.9053E-05	-1.3714E-06	4.0300E-08	-7.1000E-10	6.8200E-12	-2.7301E-14

Table 12

FIG. 12A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 6, which indicates the deviation of the focal point of light rays of different wavelengths after passing through the lens. FIG. 12B shows the astigmatism curve of the optical imaging lens of Example 6, which represents meridional field curvature and sagittal field curvature. FIG. 12C shows the distortion curve of the optical imaging lens of Embodiment 6, which represents the distortion magnitude values corresponding to different image heights. FIG. 12D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 6, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 12A to 12D, it can be seen that the optical imaging lens provided in Embodiment 6 can achieve good imaging quality.

Example 7

The optical imaging lens according to Embodiment 7 of the present application is described below with reference to FIGS. 13 to 14D. FIG. 13 shows a schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application.

As shown in FIG. 13, the optical imaging lens includes in order from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a negative refractive power, the object side surface S9 is concave, and the image side surface S10 is convex. The sixth lens E6 has a positive refractive power, the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

In this example, the total effective focal length f of the optical imaging lens is 7.00mm, the total length TTL of the optical imaging lens is 8.53mm, and the half of the diagonal length of the effective pixel area on the imaging surface S19 of the optical imaging lens ImgH is 6.10mm , The maximum field of view FOV of the optical imaging lens is 78.7°.

Table 13 shows the basic parameter table of the optical imaging lens of Embodiment 7, wherein the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 14 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 7, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.

Table 13

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	3.1496E-02	-7.9000E-03	3.4358E-03	-1.5200E-03	5.8818E-04	-1.7000E-04	3.1800E-05	-3.5000E-06	1.5930E-07
S2	-1.5667E-02	9.0980E-03	-4.8391E-03	3.2990E-03	-2.1630E-03	9.9200E-04	-2.8000E-04	4.4500E-05	-2.9583E-06
S3	-2.2413E-02	1.7770E-02	-1.1906E-02	8.1000E-03	-4.9727E-03	2.2580E-03	-6.7000E-04	1.1300E-04	-8.1634E-06
S4	1.7400E-04	1.4144E-02	-2.2609E-02	2.3470E-02	-1.8422E-02	9.8210E-03	-3.2400E-03	5.9700E-04	-4.6709E-05
S5	-9.4500E-05	5.7010E-03	-1.6232E-02	2.0245E-02	-1.7270E-02	9.8820E-03	-3.4200E-03	6.4700E-04	-5.1379E-05
S6	-6.5540E-03	2.9990E-03	-4.3626E-04	2.7800E-04	-4.5997E-04	8.0300E-04	-4.4000E-04	1.0200E-04	-8.8239E-06
S7	-1.8288E-02	-5.8400E-03	1.1372E-02	-1.7790E-02	1.6368E-02	-9.3400E-03	3.2480E-03	-6.3000E-04	5.2678E-05
S8	-2.1127E-02	-1.2500E-03	2.4517E-03	-2.1800E-03	8.7226E-04	-1.5000E-04	-7.5000E-08	3.3400E-06	-2.7966E-07
S9	6.1310E-04	-2.7500E-03	3.8436E-03	-2.7200E-03	1.0973E-03	-2.6000E-04	3.3700E-05	-2.1000E-06	3.0541E-08
S10	-8.7200E-04	1.7610E-03	-1.6954E-03	1.2220E-03	-6.4117E-04	2.1700E-04	-4.4000E-05	4.7500E-06	-2.1448E-07
S11	-3.2365E-02	7.0870E-03	-2.0733E-03	1.6800E-04	8.4724E-05	-4.1000E-05	1.0400E-05	-1.4000E-06	7.7723E-08
S12	-2.7886E-02	5.1320E-03	-5.8311E-04	-3.8000E-04	1.9696E-04	-4.8000E-05	7.4800E-06	-7.0000E-07	2.9077E-08
S13	-8.6440E-03	-1.1500E-03	3.2818E-04	-2.9000E-05	-1.3744E-05	4.2400E-06	-6.1000E-07	4.7400E-08	-1.4816E-09
S14	3.4776E-03	-2.9200E-03	6.4271E-04	-8.0000E-05	5.1647E-06	-1.3000E-07	3.7800E-12	-1.0000E-11	2.1787E-12
S15	-3.2623E-02	6.1700E-03	-6.5575E-04	4.8500E-05	-2.5261E-06	9.0000E-08	-2.1000E-09	2.7300E-11	-1.5795E-13
S16	-1.7060E-02	2.9470E-03	-3.0460E-04	1.9600E-05	-7.7064E-07	1.7300E-08	-1.7000E-10	-1.5000E-13	1.1447E-14

Table 14

FIG. 14A shows the axial chromatic aberration curve of the optical imaging lens of Embodiment 7, which represents the deviation of the focusing point of light of different wavelengths after passing through the lens. 14B shows the astigmatism curve of the optical imaging lens of Example 7, which represents meridional field curvature and sagittal field curvature. FIG. 14C shows a distortion curve of the optical imaging lens of Embodiment 7, which represents the distortion magnitude values corresponding to different image heights. FIG. 14D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 7, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 14A to 14D, it can be seen that the optical imaging lens provided in Embodiment 7 can achieve good imaging quality.

Example 8

The optical imaging lens according to Embodiment 8 of the present application is described below with reference to FIGS. 15 to 16D. FIG. 15 shows a schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application.

As shown in FIG. 15, the optical imaging lens includes in order from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens. Lens E6, seventh lens E7, eighth lens E8, filter E9 and imaging surface S19.

The first lens E1 has a positive refractive power, the object side surface S1 is a convex surface, and the image side surface S2 is a concave surface. The second lens E2 has a negative refractive power, the object side surface S3 is a convex surface, and the image side surface S4 is a concave surface. The third lens E3 has a positive refractive power, the object side surface S5 is a convex surface, and the image side surface S6 is a concave surface. The fourth lens E4 has a positive refractive power, the object side surface S7 is a concave surface, and the image side surface S8 is a convex surface. The fifth lens E5 has a positive refractive power, the object side surface S9 is a concave surface, and the image side surface S10 is a convex surface. The sixth lens E6 has a positive refractive power, the object side surface S11 is a convex surface, and the image side surface S12 is a concave surface. The seventh lens E7 has a positive refractive power, the object side surface S13 is a convex surface, and the image side surface S14 is a convex surface. The eighth lens E8 has a negative refractive power, the object side surface S15 is a concave surface, and the image side surface S16 is a concave surface. The filter E9 has an object side surface S17 and an image side surface S18. The light from the object sequentially passes through the surfaces S1 to S18 and is finally imaged on the imaging surface S19.

In this example, the total effective focal length f of the optical imaging lens is 7.25mm, the total length of the optical imaging lens TTL is 8.86mm, and the half of the diagonal length of the effective pixel area on the imaging surface S19 of the optical imaging lens ImgH is 6.30mm , The maximum field of view FOV of the optical imaging lens is 78.6°.

Table 15 shows the basic parameter table of the optical imaging lens of Embodiment 8, wherein the units of the radius of curvature, thickness/distance, and focal length are all millimeters (mm). Table 16 shows the coefficients of higher-order terms that can be used for each aspheric mirror surface in Embodiment 8, where each aspheric surface type can be defined by the formula (1) given in Embodiment 1 above.

Table 15

Face number	A4	A6	A8	A10	A12	A14	A16	A18	A20
S1	2.8644E-02	-6.8513E-03	2.9462E-03	-1.3200E-03	5.0905E-04	-1.4000E-04	2.6600E-05	-2.8000E-06	1.2803E-07
S2	-1.3753E-02	8.0834E-03	-4.7784E-03	3.3430E-03	-2.0222E-03	8.3900E-04	-2.2000E-04	3.1400E-05	-1.9192E-06
S3	-2.0802E-02	1.7199E-02	-1.3331E-02	1.0041E-02	-6.0324E-03	2.5170E-03	-6.7000E-04	1.0200E-04	-6.6332E-06
S4	-2.6300E-04	1.5385E-02	-2.4504E-02	2.3810E-02	-1.6416E-02	7.6040E-03	-2.2000E-03	3.6000E-04	-2.5043E-05
S5	-5.0000E-04	6.8030E-03	-1.6133E-02	1.7462E-02	-1.2681E-02	6.2600E-03	-1.9100E-03	3.2400E-04	-2.3210E-05
S6	-6.4340E-03	2.6042E-03	5.3315E-04	-1.4100E-03	1.2878E-03	-4.0000E-04	3.5400E-05	7.0000E-06	-1.2651E-06
S7	-1.6943E-02	-4.0415E-03	6.7460E-03	-9.5900E-03	8.0890E-03	-4.2600E-03	1.3730E-03	-2.5000E-04	1.9323E-05
S8	-1.8269E-02	-4.5083E-03	3.8905E-03	-1.4300E-03	-1.6761E-04	3.4100E-04	-1.2000E-04	2.0700E-05	-1.3336E-06
S9	1.5296E-03	-3.8500E-03	4.0282E-03	-2.3000E-03	7.7959E-04	-1.6000E-04	1.9500E-05	-1.2000E-06	1.9912E-08

S10	-3.4570E-03	5.0445E-03	-3.8959E-03	2.0760E-03	-7.7938E-04	1.9800E-04	-3.2000E-05	2.9400E-06	-1.1772E-07
S11	-2.9448E-02	6.0541E-03	-1.6628E-03	1.2600E-04	5.9894E-05	-2.7000E-05	6.4800E-06	-8.4000E-07	4.2689E-08
S12	-2.4585E-02	3.2210E-03	3.6598E-04	-7.0000E-04	2.8260E-04	-6.4000E-05	9.1800E-06	-7.7000E-07	2.8418E-08
S13	-7.1580E-03	-1.3916E-03	4.3382E-04	-9.4000E-05	1.2978E-05	-1.7000E-06	1.5800E-07	-7.9000E-09	1.8192E-10
S14	3.5250E-03	-2.5778E-03	5.0730E-04	-5.7000E-05	3.5359E-06	-1.1000E-07	2.5100E-09	-1.1000E-10	2.6654E-12
S15	-2.8319E-02	4.7793E-03	-4.4179E-04	2.7700E-05	-1.1976E-06	3.4800E-08	-6.4000E-10	6.8000E-12	-3.0820E-14
S16	-1.5354E-02	2.3950E-03	-2.2052E-04	1.2300E-05	-3.9260E-07	5.4700E-09	3.7500E-11	-2.1000E-12	1.8052E-14

Table 16

FIG. 16A shows the axial chromatic aberration curve of the optical imaging lens of Example 8, which represents the deviation of the focal point of light rays of different wavelengths after passing through the lens. 16B shows the astigmatism curve of the optical imaging lens of Example 8, which represents meridional field curvature and sagittal field curvature. FIG. 16C shows a distortion curve of the optical imaging lens of Embodiment 8, which represents the distortion magnitude values corresponding to different image heights. FIG. 16D shows the chromatic aberration curve of magnification of the optical imaging lens of Example 8, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to FIGS. 16A to 16D, it can be seen that the optical imaging lens provided in Embodiment 8 can achieve good imaging quality.

In summary, Examples 1 to 8 satisfy the relationships shown in Table 17 respectively.

Conditional/Example	1	2	3	4	5	6	7	8
ImgH(mm)	5.64	5.20	5.40	5.50	5.80	6.00	6.10	6.30
f2/f1	-1.88	-1.96	-2.00	-1.94	-2.00	-2.00	-2.00	-1.95
f/(f7-f8)	0.51	0.47	0.46	0.51	0.44	0.50	0.34	0.33
R5/R6	0.79	0.81	0.81	0.80	1.10	0.81	0.92	0.93
R8/R10	0.41	0.70	1.35	0.45	1.02	0.31	0.34	0.52
f/(R13+R16)	0.63	0.63	0.64	0.64	0.69	0.57	0.40	0.41
TTL/ImgH	1.38	1.38	1.39	1.43	1.38	1.38	1.40	1.41
T34/(CT4+T45)	1.08	1.13	1.27	1.10	0.81	1.05	0.86	0.85
CT7/(T78+CT8)	0.63	0.75	0.91	0.76	0.77	0.97	0.91	0.94
FOV(°)	80.1	80.1	80.1	78.1	80.0	80.0	78.7	78.6
f123/f	1.23	1.25	1.27	1.24	1.61	1.26	1.33	1.35
(SAG61+SAG62)/CT6	-2.03	-2.41	-2.50	-3.00	-3.31	-3.16	-2.68	-2.65
ImgH×EPD/f(mm)	3.14	2.89	3.01	3.06	3.23	3.33	3.39	3.50
SAG81/T78	-1.12	-1.08	-1.03	-1.12	-0.95	-1.18	-0.77	-0.83

Table 17

The present application also provides an imaging device, the electronic photosensitive element of which may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be an independent imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover the above technical features without departing from the inventive concept. Or other technical solutions formed by any combination of its equivalent features. For example, the above-mentioned features and the technical features disclosed in this application (but not limited to) with similar functions are mutually replaced to form a technical solution.

Claims (26)

1. The optical imaging lens is characterized in that it includes in order from the object side to the image side along the optical axis:

   A first lens with positive refractive power;

   A second lens with negative refractive power;

   For the third lens with optical power, the object side is convex and the image side is concave;

   A fourth lens with optical power;

   The fifth lens with optical power;

   The sixth lens with optical power;

   A seventh lens with positive refractive power;

   The eighth lens with negative refractive power;

   Wherein, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens satisfies: ImgH≥5.2mm; and

   The effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: -2≦f2/f1<0.
2. The optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens, the effective focal length f7 of the seventh lens, and the effective focal length f8 of the eighth lens satisfy: 0.2<f /(f7-f8)<0.6.
3. The optical imaging lens of claim 1, wherein the curvature radius R5 of the object side surface of the third lens and the curvature radius R6 of the image side surface of the third lens satisfy: 0.7<R5/R6<1.2.
4. The optical imaging lens of claim 1, wherein the curvature radius R8 of the image side surface of the fourth lens and the curvature radius R10 of the image side surface of the fifth lens satisfy: 0.3<R8/R10<1.4.
5. The optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens, the curvature radius R13 of the object side surface of the seventh lens, and the curvature radius of the image side surface of the eighth lens R16 satisfies: 0.3<f/(R13+R16)<0.8.
6. The optical imaging lens of claim 1, wherein the separation distance T34 between the third lens and the fourth lens on the optical axis, and the center of the fourth lens on the optical axis The thickness CT4 and the separation distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.8<T34/(CT4+T45)<1.3.
7. The optical imaging lens of claim 1, wherein the center thickness CT7 of the seventh lens on the optical axis, the separation distance T78 between the seventh lens and the eighth lens on the optical axis And the center thickness CT8 of the fourth lens on the optical axis satisfies: 0.6<CT7/(T78+CT8)<1.0.
8. The optical imaging lens of claim 1, wherein the combined focal length f123 of the first lens, the second lens, and the third lens and the total effective focal length f of the optical imaging lens satisfy: 1.2 <f123/f<1.7.
9. The optical imaging lens of claim 1, wherein an effective radius vertex from the intersection of the object side surface of the sixth lens and the optical axis to the object side surface of the sixth lens is on the optical axis Distance from SAG61, the intersection of the image side surface of the sixth lens and the optical axis to the effective radius vertex of the image side surface of the sixth lens on the optical axis SAG62 and the center thickness CT6 of the sixth lens Satisfies: -3.4<(SAG61+SAG62)/CT6<-2.0.
10. The optical imaging lens of claim 1, wherein an effective radius vertex from the intersection of the object side surface of the eighth lens and the optical axis to the object side surface of the eighth lens is on the optical axis The distance T78 between the distance SAG81 and the seventh lens and the eighth lens on the optical axis satisfies: -1.2<SAG81/T78<-0.7.
11. The optical imaging lens according to any one of claims 1 to 10, wherein the maximum field of view FOV of the optical imaging lens satisfies: 77°<FOV<82°.
12. The optical imaging lens according to any one of claims 1 to 10, characterized in that, on the imaging surface of the optical imaging lens, half of the diagonal length of the effective pixel area ImgH, and the entrance pupil of the optical imaging lens The diameter EPD and the total effective focal length f of the optical imaging lens satisfy: 2.7mm<ImgH×EPD/f<3.7mm.
13. The optical imaging lens of claim 12, wherein the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis is TTL and the imaging surface of the optical imaging lens Half of the diagonal length ImgH of the upper effective pixel area satisfies: TTL/ImgH<1.45.
14. The optical imaging lens is characterized in that it includes in order from the object side to the image side along the optical axis:

    A first lens with positive refractive power;

    A second lens with negative refractive power;

    For the third lens with optical power, the object side is convex and the image side is concave;

    A fourth lens with optical power;

    The fifth lens with optical power;

    The sixth lens with optical power;

    A seventh lens with positive refractive power;

    The eighth lens with negative refractive power;

    Wherein, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens satisfies: ImgH≥5.2mm; and

    The total effective focal length f of the optical imaging lens, the effective focal length f7 of the seventh lens, and the effective focal length f8 of the eighth lens satisfy: 0.2<f/(f7-f8)<0.6.
15. The optical imaging lens of claim 14, wherein the curvature radius R5 of the object side surface of the third lens and the curvature radius R6 of the image side surface of the third lens satisfy: 0.7<R5/R6<1.2.
16. The optical imaging lens of claim 14, wherein the curvature radius R8 of the image side surface of the fourth lens and the curvature radius R10 of the image side surface of the fifth lens satisfy: 0.3<R8/R10<1.4.
17. The optical imaging lens of claim 14, wherein the total effective focal length f of the optical imaging lens, the curvature radius R13 of the object side surface of the seventh lens, and the curvature radius of the image side surface of the eighth lens R16 satisfies: 0.3<f/(R13+R16)<0.8.
18. The optical imaging lens of claim 14, wherein the separation distance T34 between the third lens and the fourth lens on the optical axis, and the center of the fourth lens on the optical axis The thickness CT4 and the separation distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 0.8<T34/(CT4+T45)<1.3.
19. The optical imaging lens of claim 14, wherein the center thickness CT7 of the seventh lens on the optical axis, the separation distance T78 between the seventh lens and the eighth lens on the optical axis And the center thickness CT8 of the fourth lens on the optical axis satisfies: 0.6<CT7/(T78+CT8)<1.0.
20. The optical imaging lens of claim 14, wherein the combined focal length f123 of the first lens, the second lens, and the third lens and the total effective focal length f of the optical imaging lens satisfy: 1.2 <f123/f<1.7.
21. 22. The optical imaging lens of claim 20, wherein the effective focal length f2 of the second lens and the effective focal length f1 of the first lens satisfy: -2≦f2/f1<0.
22. The optical imaging lens of claim 14, wherein the effective radius vertex from the intersection of the object side surface of the sixth lens and the optical axis to the object side surface of the sixth lens is on the optical axis The distance from SAG61, the intersection of the image side surface of the sixth lens and the optical axis to the effective radius vertex of the image side surface of the sixth lens on the optical axis SAG62, and the center thickness CT6 of the sixth lens Satisfies: -3.4<(SAG61+SAG62)/CT6<-2.0.
23. The optical imaging lens of claim 14, wherein the effective radius vertex from the intersection of the object side surface of the eighth lens and the optical axis to the object side surface of the eighth lens is on the optical axis The distance T78 between the distance SAG81 and the seventh lens and the eighth lens on the optical axis satisfies: -1.2<SAG81/T78<-0.7.
24. The optical imaging lens according to any one of claims 14 to 23, wherein the maximum field of view FOV of the optical imaging lens satisfies: 77°<FOV<82°.
25. The optical imaging lens according to any one of claims 14 to 23, characterized in that, on the imaging surface of the optical imaging lens, half of the diagonal length of the effective pixel area ImgH, and the entrance pupil of the optical imaging lens The diameter EPD and the total effective focal length f of the optical imaging lens satisfy: 2.7mm<ImgH×EPD/f<3.7mm.
26. The optical imaging lens according to any one of claims 14 to 23, wherein the distance between the object side of the first lens and the imaging surface of the optical imaging lens on the optical axis is TTL and the Half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens satisfies: TTL/ImgH<1.45.

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