Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens with optical power; a distance TTL from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis and a half of the diagonal length ImgH of an effective pixel area of ​​the optical imaging lens satisfy: TTL / ImgH≤1.2; a total effective focal length f of the optical imaging lens and an entrance pupil diameter EPD of the optical imaging lens satisfy: f / EPD≤1.8; and a total effective focal length f of the optical imaging lens and a half of the maximum field of view Semi‑FOV of the optical imaging lens satisfy: f×tan(Semi‑FOV)>4.6mm.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and in particular, to an optical imaging lens. Background Art

[0002] With the rapid development of electronic products, the application of optical imaging lenses is becoming more and more extensive. On the one hand, as electronic products tend to be lighter and thinner, their optical imaging lenses must not only have good image quality, but also have a thin and light appearance, so as to effectively reduce product costs and be more user-friendly. On the other hand, users also have higher requirements for the image quality of objects captured by the optical imaging lenses of electronic products. At the same time, with the advancement of semiconductor process technology, the pixel size of photosensitive elements continues to decrease, making the optical imaging lenses mounted on electronic products such as mobile phones or digital cameras gradually tend to develop in the fields of miniaturization, large field of view, high pixel, etc.

[0003] In order to meet the requirements of high pixel and large field of view, the common optical imaging lenses on the market usually need to adopt large-aperture configuration, which leads to a longer lens size, so it will be difficult to match the requirements of a high-pixel photosensitive chip. In addition, in order to further improve the field of view, it often leads to increased distortion, that is, the main light emission angle is too large, making the lens resolution insufficient. In order to meet the development needs of the market, optical imaging lenses need to shorten the total length of the lens as much as possible and reduce the number of lenses, but this will reduce the design freedom, increase the design difficulty, and make it difficult to meet the high-quality imaging needs. Summary of the invention

[0004] On one hand, the present application provides an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens with optical power; a distance TTL from the object side of the first lens to the imaging plane of the optical imaging lens on the optical axis and a half of the diagonal length of an effective pixel area of ​​the optical imaging lens ImgH may satisfy: TTL / ImgH≤1.2; a total effective focal length f of the optical imaging lens and an entrance pupil diameter EPD of the optical imaging lens may satisfy: f / EPD≤1.8; and a total effective focal length f of the optical imaging lens and a half of the maximum field of view Semi-FOV of the optical imaging lens may satisfy: f×tan(Semi-FOV)>4.6mm.

[0005] In one embodiment, there is at least one aspherical mirror surface from the object side surface of the first lens to the image side surface of the seventh lens.

[0006] In one embodiment, the effective focal length f1 of the first lens, the curvature radius R1 of the object-side surface of the first lens, and the curvature radius R2 of the image-side surface of the first lens may satisfy: 0.8<f1 / (R1+R2)<1.3.

[0007] In one embodiment, the effective focal length f2 of the second lens, the curvature radius R3 of the object-side surface of the second lens, and the curvature radius R4 of the image-side surface of the second lens may satisfy: -1.0<(R3+R4) / f2<-0.5.

[0008] In one embodiment, the effective focal length f3 of the third lens and the curvature radius R5 of the object-side surface of the third lens may satisfy: 0.3<R5 / f3<0.8.

[0009] In one embodiment, the total effective focal length f of the optical imaging lens and the combined focal length f123 of the first lens, the second lens and the third lens may satisfy: 0.8<f / f123<1.3.

[0010] In one embodiment, an effective focal length f6 of the sixth lens, an effective focal length f7 of the seventh lens, and a combined focal length f67 of the sixth lens and the seventh lens may satisfy: 0.5<(f7-f6) / f67<1.0.

[0011] In one embodiment, a curvature radius R11 of the object side surface of the sixth lens, a curvature radius R12 of the image side surface of the sixth lens, a curvature radius R13 of the object side surface of the seventh lens, and a curvature radius R14 of the image side surface of the seventh lens may satisfy: 0.7<(R13+R14) / (R11+R12)<1.2.

[0012] In one embodiment, a distance SAG71 from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis and a distance SAG72 from the intersection of the image side surface of the seventh lens and the optical axis to the vertex of the effective radius of the image side surface of the seventh lens on the optical axis may satisfy: 0.5<SAG72 / SAG71<1.0.

[0013] In one embodiment, the distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens on the optical axis, the distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens on the optical axis, and the distance SAG62 from the intersection of the image side surface of the sixth lens and the optical axis to the vertex of the effective radius of the image side surface of the sixth lens on the optical axis may satisfy: 0.7<(SAG41+SAG42) / SAG62<1.2.

[0014] In one embodiment, an edge thickness ET2 of the second lens and an edge thickness ET7 of the seventh lens may satisfy: 0.3<ET2 / ET7<0.8.

[0015] In one embodiment, an edge thickness ET5 of the fifth lens and an edge thickness ET6 of the sixth lens may satisfy: 0.5<ET5 / ET6<1.0.

[0016] In one embodiment, the center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, the center thickness CT3 of the third lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, the center thickness CT6 of the sixth lens on the optical axis, and the center thickness CT7 of the seventh lens on the optical axis may satisfy: 0.8<(CT1+CT2+CT3) / (CT5+CT6+CT7)<1.3.

[0017] In one embodiment, a center thickness CT4 of the fourth lens on the optical axis and a spacing distance T34 between the third lens and the fourth lens on the optical axis may satisfy: 0.7<CT4 / T34<1.2.

[0018] In one embodiment, the first lens has positive refractive power, and its object-side surface is convex and its image-side surface is concave.

[0019] In one embodiment, the second lens has negative optical power, and its object-side surface is convex and its image-side surface is concave.

[0020] In one embodiment, the object-side surface of the third lens is convex.

[0021] In one embodiment, the sixth lens has positive refractive power, and its object-side surface is convex.

[0022] In one embodiment, the seventh lens element has negative optical power, and its object-side surface is concave, and its image-side surface is concave.

[0023] On the other hand, the present application provides an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with optical power; a second lens with optical power; a third lens with positive optical power; a fourth lens with optical power; a fifth lens with optical power; a sixth lens with optical power, whose image side surface is convex; and a seventh lens with optical power; a distance TTL from the object side surface of the first lens to the imaging plane of the optical imaging lens on the optical axis and half of the diagonal length of the effective pixel area of ​​the optical imaging lens ImgH can satisfy: TTL / ImgH≤1.2; a total effective focal length f of the optical imaging lens and an entrance pupil diameter EPD of the optical imaging lens can satisfy: f / EPD≤1.8.

[0024] The present application provides an optical imaging lens which is applicable to lightweight electronic products, has thinness, miniaturization and good imaging quality, by reasonably allocating optical focal length and optimizing optical parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown;

[0027] FIG. 2A to FIG. 2D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 1 are respectively shown;

[0028] Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown;

[0029] FIG. 4A to FIG. 4D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 2 are respectively shown;

[0030] Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown;

[0031] FIG. 6A to FIG. 6D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 3 are respectively shown;

[0032] Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0033] FIG. 8A to FIG. 8D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 4 are respectively shown;

[0034] Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown;

[0035] FIG. 10A to FIG. 10D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 5 are respectively shown;

[0036] Fig.11 A schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application is shown; and

[0037] FIG. 12A to FIG. 12DThe axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 6 are respectively shown;

[0038] Fig.13 A schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application is shown;

[0039] FIG. 14A to FIG. 14D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 7 are respectively shown;

[0040] Fig.15 shows a schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application; and

[0041] FIG. 16A to FIG. 16D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 8 are respectively shown. DETAILED DESCRIPTION

[0042] In order to better understand the present application, a more detailed description will be made of various aspects of the present application 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.

[0043] It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0044] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of explanation. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to the shapes of the spherical or aspherical surfaces shown in the drawings. The drawings are only examples and are not drawn strictly to scale.

[0045] In this article, the paraxial region refers to the region 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 concave at least in the paraxial region. 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 plane is called the image side of the lens.

[0046] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

[0047] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] The features, principles and other aspects of the present application are described in detail below.

[0050] The optical imaging lens according to the exemplary embodiment of the present application may include seven lenses with optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The seven lenses are arranged in sequence from the object side to the image side along the optical axis. Any two adjacent lenses from the first lens to the seventh lens may have a spacing distance between them.

[0051] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: TTL / ImgH≤1.2, wherein 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 the diagonal length of the effective pixel area of ​​the optical imaging lens. Satisfying TTL / ImgH≤1.2 can not only make the system structure compact and meet the requirements of miniaturization, but also make the system have the characteristics of high pixel, large aperture and ultra-thin.

[0052] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: f / EPD≤1.8, where f is the total effective focal length of the optical imaging lens, and EPD is the entrance pupil diameter of the optical imaging lens. Satisfying f / EPD≤1.8 can make the optical imaging lens have a larger aperture, increase the light throughput of the system, and enhance the imaging effect in a dark environment.

[0053] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: f×tan(Semi-FOV)>4.6mm, where f is the total effective focal length of the optical imaging lens, and Semi-FOV is half of the maximum field of view of the optical imaging lens. If f×tan(Semi-FOV)>4.6mm is satisfied, the imaging effect of a large image plane of the system can be achieved.

[0054] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.8<f1 / (R1+R2)<1.3, wherein f1 is the effective focal length of the first lens, R1 is the radius of curvature of the object side of the first lens, and R2 is the radius of curvature of the image side of the first lens. More specifically, f1, R1, and R2 may further satisfy: 0.8<f1 / (R1+R2)<1.2. Satisfying 0.8<f1 / (R1+R2)<1.3 can reasonably allocate the optical power of the first lens and reduce the total length of the system, thereby achieving module miniaturization while balancing the system tolerance sensitivity.

[0055] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -1.0<(R3+R4) / f2<-0.5, wherein f2 is the effective focal length of the second lens, R3 is the radius of curvature of the object side of the second lens, and R4 is the radius of curvature of the image side of the second lens. More specifically, R3, R4 and f2 may further satisfy: -0.8<(R3+R4) / f2<-0.5. Satisfying -1.0<(R3+R4) / f2<-0.5 can effectively control the contribution of the second lens to the fifth-order spherical aberration of the system, thereby compensating for the third-order spherical aberration generated by the lens, so that the system has good imaging quality on the axis.

[0056] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.3<R5 / f3<0.8, where f3 is the effective focal length of the third lens, and R5 is the radius of curvature of the object side of the third lens. More specifically, R5 and f3 may further satisfy: 0.4<R5 / f3<0.6. Satisfying 0.3<R5 / f3<0.8 can control the deflection angle of the edge field of view at the third lens, which can effectively reduce the sensitivity of the system.

[0057] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.8<f / f123<1.3, where f is the total effective focal length of the optical imaging lens, and f123 is the combined focal length of the first lens, the second lens, and the third lens. More specifically, f and f123 may further satisfy: 0.9<f / f123<1.1. Satisfying 0.8<f / f123<1.3 can enable the system to have good imaging quality and control the field curvature of the system within a reasonable range.

[0058] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5<(f7-f6) / f67<1.0, wherein f6 is the effective focal length of the sixth lens, f7 is the effective focal length of the seventh lens, and f67 is the combined focal length of the sixth lens and the seventh lens. More specifically, f7, f6, and f67 may further satisfy: 0.7<(f7-f6) / f67<0.9. By satisfying 0.5<(f7-f6) / f67<1.0, the contribution of the aberrations of the sixth lens and the seventh lens can be controlled to balance the aberrations generated by the front-end optical elements, so that the system aberrations are at a reasonable level.

[0059] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.7<(R13+R14) / (R11+R12)<1.2, wherein R11 is the radius of curvature of the object side surface of the sixth lens, R12 is the radius of curvature of the image side surface of the sixth lens, R13 is the radius of curvature of the object side surface of the seventh lens, and R14 is the radius of curvature of the image side surface of the seventh lens. More specifically, R13, R14, R11, and R12 may further satisfy: 0.8<(R13+R14) / (R11+R12)<1.0. Satisfying 0.7<(R13+R14) / (R11+R12)<1.2 is conducive to balancing the aberrations of the system and improving the imaging quality of the system.

[0060] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5<SAG72 / SAG71<1.0, wherein SAG71 is the distance from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis, and SAG72 is the distance from the intersection of the image side surface of the seventh lens and the optical axis to the vertex of the effective radius of the image side surface of the seventh lens on the optical axis. More specifically, SAG72 and SAG71 may further satisfy: 0.6<SAG72 / SAG71<0.9. Satisfying 0.5<SAG72 / SAG71<1.0 is conducive to better balancing the relationship between module miniaturization and the relative illumination of the off-axis field of view.

[0061] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.7<(SAG41+SAG42) / SAG62<1.2, wherein SAG41 is the distance from the intersection of the object side surface of the fourth lens and the optical axis to the effective radius vertex of the object side surface of the fourth lens on the optical axis, SAG42 is the distance from the intersection of the image side surface of the fourth lens and the optical axis to the effective radius vertex of the image side surface of the fourth lens on the optical axis, and SAG62 is the distance from 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. More specifically, SAG41, SAG42, and SAG62 may further satisfy: 0.7<(SAG41+SAG42) / SAG62<1.0. Satisfying 0.7<(SAG41+SAG42) / SAG62<1.2 is conducive to adjusting the field curvature of the system, can well improve the ghost image between the fourth lens and the sixth lens, and can reduce the difficulty of processing, so that the assembly of the optical imaging lens has higher stability.

[0062] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.3<ET2 / ET7<0.8, where ET2 is the edge thickness of the second lens, and ET7 is the edge thickness of the seventh lens. More specifically, ET2 and ET7 may further satisfy: 0.4<ET2 / ET7<0.6. Satisfying 0.3<ET2 / ET7<0.8 is conducive to controlling the distortion contribution of each field of view of the system within a reasonable range, and finally making the system distortion less than 3%, thereby improving the imaging quality.

[0063] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5<ET5 / ET6<1.0, where ET5 is the edge thickness of the fifth lens and ET6 is the edge thickness of the sixth lens. More specifically, ET5 and ET6 may further satisfy: 0.7<ET5 / ET6<0.9. Satisfying 0.5<ET5 / ET6<1.0 can effectively reduce the system size and ensure that the optical element has good processability.

[0064] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.8<(CT1+CT2+CT3) / (CT5+CT6+CT7)<1.3, wherein CT1 is the center thickness of the first lens on the optical axis, CT2 is the center thickness of the second lens on the optical axis, CT3 is the center thickness of the third lens on the optical axis, CT5 is the center thickness of the fifth lens on the optical axis, CT6 is the center thickness of the sixth lens on the optical axis, and CT7 is the center thickness of the seventh lens on the optical axis. More specifically, CT1, CT2, CT3, CT5, CT6, and CT7 may further satisfy: 0.9<(CT1+CT2+CT3) / (CT5+CT6+CT7)<1.1. Satisfying 0.8<(CT1+CT2+CT3) / (CT5+CT6+CT7)<1.3 can effectively ensure the field curvature of the system, thereby enabling the system's off-axis field of view to obtain good imaging quality, and can effectively reduce the total length of the system to achieve ultra-thin characteristics.

[0065] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.7<CT4 / T34<1.2, wherein CT4 is the center thickness of the fourth lens on the optical axis, and T34 is the spacing distance between the third lens and the fourth lens on the optical axis. More specifically, CT4 and T34 may further satisfy: 0.8<CT4 / T34<1.1. Satisfying 0.7<CT4 / T34<1.2 is conducive to avoiding the generation of ghost images between the third lens and the fourth lens, and can enable the optical imaging lens to have better spherical aberration and distortion correction functions.

[0066] In an exemplary embodiment, the third lens may have positive optical power. The third lens with positive optical power can improve the light convergence capability, and is beneficial to improve the field curvature of the system and balance the aberration of the system.

[0067] In an exemplary embodiment, the image side surface of the sixth lens may be a convex surface. The sixth lens having a convex image side surface can effectively reduce the incident angle of light, so that the light will not be deflected at a large angle, which is of great help to the process.

[0068] In an exemplary embodiment, the first lens may have positive power, its object side surface may be convex, and its image side surface may be concave. The first lens with positive power, its object side surface is convex, and its image side surface is concave, which is conducive to improving the relative illumination of the off-axis field of view and increasing the field of view angle.

[0069] In an exemplary embodiment, the second lens may have negative optical power, and its object side surface may be convex, and its image side surface may be concave. The second lens with negative optical power has a convex object side surface and a concave image side surface, which is beneficial to control the angle of light and reduce the aberration of the system.

[0070] In an exemplary embodiment, the object side surface of the third lens may be a convex surface. The third lens having a convex object side surface can make the central light have a good convergence ability and improve the system spherical aberration.

[0071] In an exemplary embodiment, the sixth lens may have positive power, and its object side surface may be convex. The sixth lens with positive power and its object side surface being convex is beneficial to increase the field angle, and is also beneficial to reduce the incident angle of light at the aperture position, reduce pupil aberration, and improve imaging quality.

[0072] In an exemplary embodiment, the seventh lens may have negative power, and its object side surface may be concave, and its image side surface may be concave. The seventh lens with negative power can effectively reduce the total length of the system and achieve miniaturization and ultra-thinness of the lens.

[0073] In an exemplary embodiment, the optical imaging lens according to the present application further includes an aperture provided between the object side and the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the imaging surface. The present application proposes an optical imaging lens having the characteristics of miniaturization, large image surface, large aperture, ultra-thinness and high imaging quality. The optical imaging lens according to the above embodiment of the present application may adopt multiple lenses, such as the seven lenses mentioned above. By reasonably allocating the optical power, surface shape, center thickness of each lens and the on-axis spacing between each lens, the incident light can be effectively converged, the total optical length of the imaging lens can be reduced and the processability of the imaging lens can be improved, so that the optical imaging lens is more conducive to production and processing.

[0074] In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface, that is, at least one of the mirror surfaces from the object side of the first lens to the image side of the seventh lens is an aspherical mirror surface. The characteristic of the aspherical 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 aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens is an aspherical mirror surface. Optionally, the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all aspherical mirror surfaces.

[0075] However, those skilled in the art should understand that, without departing from the technical solution claimed in the present 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 seven lenses are described as an example in the embodiments, the optical imaging lens is not limited to including seven lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0076] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0077] Example 1

[0078] The following reference Figures 1 to 2D An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0079] like Figure 1 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0080] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is convex. The fourth lens E4 has negative focal power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative focal power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0081] Table 1 shows the basic parameters of the optical imaging lens of Example 1, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0082]

[0083]

[0084] Table 1

[0085] In this example, the total effective focal length f of the optical imaging lens is 4.92 mm, the total length TTL of the optical imaging lens (i.e., the distance from the object-side surface S1 of the first lens E1 to the imaging surface S17 of the optical imaging lens on the optical axis) is 5.74 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.9°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.78.

[0086] In Example 1, the object side surface and the image side surface of any lens among the first lens E1 to the seventh lens E7 are both aspherical surfaces, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0087]

[0088] Wherein, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. The following Tables 2-1 and 2-2 give the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, A40, A41, A42, A43, A44, A45, A46, A47, A48, A49, A50, A51, A52, A53, A54, A55, A56, A57, A58, A59, A60, A61, A71, A72, A73, A74, A75, A76, A77, A8, A9, A10, A11, A12, A13, A14, A15 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0089] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.6663E-03 -7.9638E-03 -2.8720E-03 -5.9866E-04 -5.1079E-05 5.5274E-05 3.2717E-05 S2 -6.9919E-02 -1.3697E-03 2.5298E-03 1.2251E-03 5.3886E-04 2.1946E-04 9.6007E-05 S3 -7.0887E-02 1.1400E-02 1.0614E-03 3.6972E-04 3.1445E-04 6.5411E-05 4.0454E-05 S4 -3.2379E-02 4.4941E-06 -4.4761E-03 -3.0534E-03 -9.3853E-04 -1.3811E-04 2.4771E-04 S5 5.3052E-02 1.7441E-02 6.4032E-03 -4.0813E-04 -8.7552E-04 -4.0361E-04 6.2882E-05 S6 1.3045E-04 1.0614E-02 6.2447E-03 2.4671E-03 9.7077E-04 3.1293E-04 1.1895E-04 S7 -2.2024E-01 -2.5571E-02 -5.2684E-04 1.0974E-03 7.0062E-04 2.3978E-04 6.3332E-05 S8 -3.3943E-01 -6.5147E-03 1.3326E-02 7.9051E-03 2.3060E-03 3.0236E-04 -2.2103E-04 S9 -3.8543E-01 1.6179E-02 -2.3485E-02 8.4134E-03 7.3917E-03 3.0553E-03 5.1775E-04 S10 -4.7306E-01 1.2606E-01 -7.7552E-02 3.6615E-03 5.0664E-03 -3.9137E-03 -1.1310E-03 S11 -1.3928E+00 2.6210E-01 3.0484E-02 -5.3260E-02 5.7095E-03 8.6915E-03 -4.0627E-03 S12 -2.9822E-01 9.4737E-02 4.3580E-02 -4.0146E-02 1.6435E-02 1.9611E-03 -2.6305E-03 S13 -8.4271E-01 6.5253E-01 -3.0970E-01 1.3333E-01 -3.9434E-02 1.2897E-02 -4.4291E-03 S14 -4.5633E+00 9.4664E-01 -3.4271E-01 1.7391E-01 -7.1106E-02 2.9378E-02 -1.7022E-02

[0090] Table 2-1

[0091]

[0092]

[0093] Table 2-2

[0094] Figure 2A The axial chromatic aberration curve of the optical imaging lens of Example 1 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 2B The astigmatism curve of the optical imaging lens of Example 1 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 2CThe distortion curve of the optical imaging lens of Example 1 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Figure 2D The magnification chromatic aberration curve of the optical imaging lens of Example 1 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 2A to FIG. 2D It can be seen that the optical imaging lens provided in Example 1 can achieve good imaging quality.

[0095] Example 2

[0096] The following reference Figures 3 to 4D The optical imaging lens according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown.

[0097] like Figure 3 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0098] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative power, and its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0099] In this example, the total effective focal length f of the optical imaging lens is 4.92 mm, the total length TTL of the optical imaging lens is 5.70 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.6°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.78.

[0100] Table 3 shows the basic parameters of the optical imaging lens of Example 2, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 4-1 and 4-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 2, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0101]

[0102] Table 3

[0103] Face number A4 A6 A8 A10 A12 A14 A16 S1 -2.8222E-03 -6.8704E-03 -2.3101E-03 -4.2425E-04 9.0636E-06 5.9946E-05 3.3056E-05 S2 -6.9522E-02 -1.7675E-03 2.9336E-03 1.2002E-03 4.9406E-04 2.0396E-04 1.0040E-04 S3 -6.6904E-02 9.3125E-03 1.3685E-03 2.5325E-04 2.5904E-04 6.4104E-05 4.9390E-05 S4 -3.3149E-02 -2.8118E-03 -4.7595E-03 -2.7899E-03 -6.1099E-04 -1.9203E-04 1.1513E-04 S5 3.8122E-02 1.3596E-02 5.5872E-03 3.4404E-05 -3.4352E-04 -3.8383E-04 -5.1939E-05 S6 -1.1807E-03 8.8502E-03 5.8317E-03 2.5384E-03 1.0035E-03 3.7140E-04 1.3567E-04 S7 -2.1149E-01 -2.8076E-02 -1.1323E-03 1.3203E-03 8.0812E-04 2.9935E-04 6.4487E-05 S8 -3.1529E-01 -7.4775E-03 1.4452E-02 7.7806E-03 1.5657E-03 -3.1633E-04 -6.1322E-04 S9 -3.3353E-01 1.6898E-02 -2.4463E-02 2.9311E-03 5.1893E-03 2.4352E-03 5.3763E-04 S10 -4.4565E-01 1.2709E-01 -7.3003E-02 1.7104E-03 6.0358E-03 -3.2311E-03 -1.4988E-03 S11 -1.3793E+00 2.5461E-01 2.9303E-02 -5.1376E-02 5.1985E-03 9.1058E-03 -3.2491E-03 S12 -3.0073E-01 8.9544E-02 4.3954E-02 -3.9663E-02 1.5751E-02 3.0698E-03 -1.2677E-03 S13 -8.5177E-01 6.4305E-01 -3.0417E-01 1.2795E-01 -3.7399E-02 1.2558E-02 -3.5501E-03 S14 -4.5785E+00 9.3922E-01 -3.3372E-01 1.7172E-01 -7.3817E-02 2.7734E-02 -1.7886E-02

[0104] Table 4-1

[0105]

[0106]

[0107] Table 4-2

[0108] Figure 4A The axial chromatic aberration curve of the optical imaging lens of Example 2 is shown, which indicates that light of different wavelengths deviates from the focal point behind the lens. Figure 4B The astigmatism curve of the optical imaging lens of Example 2 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 4C The distortion curve of the optical imaging lens of Example 2 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Figure 4D The magnification chromatic aberration curve of the optical imaging lens of Example 2 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 4A to FIG. 4D It can be seen that the optical imaging lens provided in Example 2 can achieve good imaging quality.

[0109] Example 3

[0110] The following reference Figures 5 to 6D An optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0111] like Figure 5 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0112] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is convex, and its image side surface S10 is convex. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0113] In this example, the total effective focal length f of the optical imaging lens is 4.93 mm, the total length TTL of the optical imaging lens is 5.74 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.5°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.78.

[0114] Table 5 shows the basic parameters of the optical imaging lens of Example 3, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 6-1 and 6-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 3, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0115]

[0116] Table 5

[0117] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.0042E-03 -8.5854E-03 -3.0835E-03 -6.6762E-04 -3.6964E-05 6.1329E-05 3.9315E-05 S2 -7.5323E-02 -2.2340E-03 3.3599E-03 1.3979E-03 6.0703E-04 2.4003E-04 1.2482E-04 S3 -6.8560E-02 1.2350E-02 2.2696E-03 5.4016E-04 4.3660E-04 1.1027E-04 7.3511E-05 S4 -2.9497E-02 1.8727E-04 -3.8116E-03 -2.7223E-03 -5.4733E-04 -2.1215E-04 1.0758E-04 S5 4.0430E-02 1.3788E-02 5.9855E-03 1.2118E-05 -3.1027E-04 -3.7337E-04 -3.4669E-05 S6 4.2419E-03 8.3915E-03 5.5406E-03 2.4238E-03 9.5629E-04 3.5578E-04 1.3495E-04 S7 -2.1166E-01 -2.6838E-02 -1.0097E-03 1.3969E-03 7.8037E-04 2.8097E-04 6.1433E-05 S8 -3.3020E-01 -5.9049E-03 1.1813E-02 7.6778E-03 1.3747E-03 -1.5758E-04 -5.2561E-04 S9 -3.3645E-01 1.9993E-02 -2.6781E-02 1.4374E-03 3.0200E-03 2.2611E-03 6.3460E-04 S10 -4.2797E-01 1.2443E-01 -7.3463E-02 1.3920E-03 5.8446E-03 -2.7150E-03 -1.5388E-03 S11 -1.3819E+00 2.5786E-01 3.0242E-02 -5.0905E-02 5.6142E-03 8.6629E-03 -3.7438E-03 S12 -2.9909E-01 9.8569E-02 4.3513E-02 -4.1229E-02 1.6799E-02 1.9397E-03 -3.0499E-03 S13 -8.5272E-01 6.4716E-01 -3.0869E-01 1.3206E-01 -3.9034E-02 1.2822E-02 -3.9997E-03 S14 -4.5937E+00 9.4417E-01 -3.4542E-01 1.7549E-01 -7.4178E-02 2.7291E-02 -1.7136E-02

[0118] Table 6-1

[0119]

[0120]

[0121] Table 6-2

[0122] Fig. 6A The axial chromatic aberration curve of the optical imaging lens of Example 3 is shown, which indicates that light of different wavelengths deviates from the focal point behind the lens. Figure 6B The astigmatism curve of the optical imaging lens of Example 3 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 6CThe distortion curve of the optical imaging lens of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.6D The magnification chromatic aberration curve of the optical imaging lens of Example 3 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 6A to FIG. 6D It can be seen that the optical imaging lens provided in Example 3 can achieve good imaging quality.

[0123] Example 4

[0124] The following reference Figures 7 to 8D An optical imaging lens according to Embodiment 4 of the present application is described. Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown.

[0125] like Figure 7 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0126] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is convex, and its image side surface S6 is convex. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0127] In this example, the total effective focal length f of the optical imaging lens is 4.92 mm, the total length TTL of the optical imaging lens is 5.60 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.8°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.80.

[0128] Table 7 shows the basic parameters of the optical imaging lens of Example 4, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 8-1 and 8-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 4, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0129]

[0130] Table 7

[0131] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.1813E-03 -1.0046E-02 -4.0537E-03 -9.9203E-04 -1.1953E-04 6.3765E-05 5.2451E-05 S2 -7.3632E-02 -2.1513E-03 2.9867E-03 1.5688E-03 5.3717E-04 1.8115E-04 6.6777E-05 S3 -6.9506E-02 1.5549E-02 2.2192E-03 6.9860E-04 2.6246E-04 2.5356E-05 1.2257E-05 S4 -2.7121E-02 3.8394E-03 -3.5605E-03 -2.7892E-03 -1.1539E-03 -2.6500E-04 1.7835E-04 S5 4.9177E-02 1.5706E-02 6.0571E-03 -9.7068E-05 -8.8756E-04 -4.6960E-04 9.9876E-06 S6 4.6884E-03 8.8612E-03 5.2121E-03 2.0451E-03 8.3754E-04 2.8278E-04 1.2217E-04 S7 -2.0002E-01 -2.3439E-02 -6.5557E-04 4.6569E-04 3.9190E-04 8.8462E-05 3.2251E-05 S8 -3.2075E-01 -2.4137E-03 1.3677E-02 6.2488E-03 1.4030E-03 -3.2772E-05 -3.3147E-04 S9 -3.7427E-01 1.7190E-02 -2.6323E-02 3.4280E-03 5.3297E-03 2.8571E-03 8.8558E-04 S10 -4.6576E-01 1.1682E-01 -7.1945E-02 6.1464E-03 3.9460E-03 -3.5861E-03 -8.1770E-04 S11 -1.3951E+00 2.6438E-01 2.8624E-02 -5.3689E-02 7.1487E-03 8.4977E-03 -4.5696E-03 S12 -2.9643E-01 1.0402E-01 4.3935E-02 -4.2442E-02 1.7224E-02 5.2415E-04 -4.2069E-03 S13 -8.4495E-01 6.5177E-01 -3.1308E-01 1.3508E-01 -4.0642E-02 1.3038E-02 -4.7038E-03 S14 -4.5826E+00 9.4005E-01 -3.4258E-01 1.7610E-01 -7.3095E-02 2.6336E-02 -1.6990E-02

[0132] Table 8-1

[0133]

[0134]

[0135] Table 8-2

[0136] Fig. 8A The axial chromatic aberration curve of the optical imaging lens of Example 4 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 8B The astigmatism curve of the optical imaging lens of Example 4 is shown, which represents the meridional image curvature and the sagittal image curvature. Figure 8C The distortion curve of the optical imaging lens of Example 4 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.8D The magnification chromatic aberration curve of the optical imaging lens of Example 4 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 8A to FIG. 8D It can be seen that the optical imaging lens provided in Example 4 can achieve good imaging quality.

[0137] Example 5

[0138] The following reference Figures 9 to 10D An optical imaging lens according to Embodiment 5 of the present application is described. Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown.

[0139] like Fig. 9 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0140] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has negative focal power, and its object side surface S7 is convex, and its image side surface S8 is concave. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative focal power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0141] In this example, the total effective focal length f of the optical imaging lens is 4.92 mm, the total length TTL of the optical imaging lens is 5.60 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.6°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.80.

[0142] Table 9 shows the basic parameters of the optical imaging lens of Example 5, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 10-1 and 10-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 5, wherein the surface shape of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0143]

[0144] Table 9

[0145] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.3613E-03 -1.0094E-02 -3.9235E-03 -9.4552E-04 -8.7349E-05 6.5746E-05 4.4819E-05 S2 -7.5896E-02 -3.5604E-03 3.6514E-03 1.6101E-03 3.7314E-04 7.3560E-05 2.9822E-05 S3 -6.6665E-02 1.4944E-02 3.4786E-03 7.9046E-04 1.3948E-04 -4.1515E-06 1.0430E-05 S4 -2.6039E-02 2.8749E-03 -2.4669E-03 -1.7953E-03 -7.3604E-04 -2.2193E-04 3.5452E-05 S5 3.4418E-02 9.8499E-03 4.6180E-03 6.1972E-04 -2.7473E-04 -2.6394E-04 -4.0789E-05 S6 4.9613E-03 6.7535E-03 3.9396E-03 1.7425E-03 6.7872E-04 2.4928E-04 9.4465E-05 S7 -1.9317E-01 -2.4074E-02 -1.8223E-03 4.4605E-04 2.7206E-04 5.1752E-05 -1.9406E-05 S8 -3.1493E-01 -3.0584E-03 1.2079E-02 6.4659E-03 7.4957E-04 -2.7975E-04 -3.0248E-04 S9 -3.5499E-01 2.1703E-02 -2.8815E-02 5.2464E-04 3.1298E-03 2.2869E-03 1.1442E-03 S10 -4.4456E-01 1.1773E-01 -7.4177E-02 5.7956E-03 4.8518E-03 -3.5989E-03 -1.0855E-03 S11 -1.3866E+00 2.6218E-01 3.0089E-02 -5.3912E-02 6.2905E-03 9.0617E-03 -4.3035E-03 S12 -2.9634E-01 9.9264E-02 4.4270E-02 -4.1948E-02 1.6989E-02 1.1712E-03 -3.7909E-03 S13 -8.4626E-01 6.5138E-01 -3.1188E-01 1.3427E-01 -4.0146E-02 1.2933E-02 -4.4956E-03 S14 -4.5787E+00 9.3717E-01 -3.3732E-01 1.7713E-01 -7.1399E-02 2.5472E-02 -1.7270E-02

[0146] Table 10-1

[0147]

[0148]

[0149] Table 10-2

[0150] Fig. 10A The axial chromatic aberration curve of the optical imaging lens of Example 5 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 10B The astigmatism curve of the optical imaging lens of Example 5 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 10CThe distortion curve of the optical imaging lens of Example 5 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig. 10D The magnification chromatic aberration curve of the optical imaging lens of Example 5 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 10A to FIG. 10D It can be seen that the optical imaging lens provided in Example 5 can achieve good imaging quality.

[0151] Example 6

[0152] The following reference Figures 11 to 12D An optical imaging lens according to Embodiment 6 of the present application is described. Fig.11 A schematic structural diagram of an optical imaging lens according to Example 6 of the present application is shown.

[0153] like Fig.11 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0154] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0155] In this example, the total effective focal length f of the optical imaging lens is 4.92 mm, the total length TTL of the optical imaging lens is 5.60 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.6°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.80.

[0156] Table 11 shows the basic parameters of the optical imaging lens of Example 6, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 12-1 and 12-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 6, wherein the surface shape of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0157]

[0158] Table 11

[0159] Face number A4 A6 A8 A10 A12 A14 A16 S1 -5.1125E-03 -1.0677E-02 -4.1156E-03 -9.4788E-04 -6.0802E-05 9.1008E-05 5.8688E-05 S2 -7.6578E-02 -3.4272E-03 3.8470E-03 1.9754E-03 6.2378E-04 1.7162E-04 7.5350E-05 S3 -6.6563E-02 1.4954E-02 3.4742E-03 1.1621E-03 3.4121E-04 3.6598E-05 3.1241E-05 S4 -2.7505E-02 2.3434E-03 -3.2895E-03 -2.1078E-03 -7.3664E-04 -2.8090E-04 5.4841E-05 S5 3.3605E-02 1.1258E-02 4.8388E-03 4.2096E-04 -2.9338E-04 -3.6006E-04 -6.0069E-05 S6 5.2602E-03 6.6263E-03 4.3234E-03 1.8639E-03 7.5194E-04 2.7932E-04 1.1069E-04 S7 -1.8732E-01 -2.5255E-02 -1.2685E-03 5.8970E-04 4.3048E-04 1.1690E-04 1.9066E-05 S8 -2.9592E-01 -3.4349E-03 1.3409E-02 5.8950E-03 8.6690E-04 -3.7582E-04 -4.5944E-04 S9 -3.3452E-01 2.1500E-02 -2.9068E-02 -9.7288E-04 3.2199E-03 2.0533E-03 8.9253E-04 S10 -4.3307E-01 1.1741E-01 -7.3148E-02 4.9404E-03 4.7529E-03 -3.4002E-03 -1.0367E-03 S11 -1.3866E+00 2.6201E-01 2.7852E-02 -5.2705E-02 6.0652E-03 8.7938E-03 -4.3473E-03 S12 -2.9658E-01 9.9751E-02 4.4380E-02 -4.2227E-02 1.7061E-02 1.1384E-03 -3.8820E-03 S13 -8.4646E-01 6.5102E-01 -3.1298E-01 1.3503E-01 -4.0538E-02 1.2971E-02 -4.5621E-03 S14 -4.6058E+00 9.4370E-01 -3.4417E-01 1.7890E-01 -7.3110E-02 2.5662E-02 -1.7233E-02

[0160] Table 12-1

[0161] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.2408E-05 -3.3601E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 5.3896E-05 2.4395E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 3.1373E-05 1.2495E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 1.0439E-04 6.2991E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 3.3756E-05 5.0267E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 4.3787E-05 1.4025E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -1.3061E-05 -2.3609E-06 3.8923E-08 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 -2.4901E-04 -4.9461E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 4.0596E-04 2.8399E-04 -4.1637E-05 -4.8200E-05 -4.0125E-05 0.0000E+00 0.0000E+00 S10 8.9009E-04 2.1256E-04 -1.9519E-04 1.8775E-04 1.0374E-04 0.0000E+00 0.0000E+00 S11 -3.9448E-03 1.5970E-03 7.3100E-04 -6.6170E-04 -2.0166E-04 1.6581E-04 7.2395E-05 S12 -4.3841E-03 -2.6264E-05 1.6723E-03 8.7410E-04 1.6139E-04 -2.7701E-04 -2.5014E-04 S13 -2.0990E-03 -8.8968E-04 3.1545E-03 -5.4750E-04 -4.1566E-04 1.1210E-04 -9.5272E-05 S14 8.9367E-03 -1.6501E-03 4.3463E-03 -6.6782E-04 8.0209E-04 -6.5440E-04 4.0683E-05

[0162] Table 12-2

[0163] Fig. 12A The axial chromatic aberration curve of the optical imaging lens of Example 6 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 12B The astigmatism curve of the optical imaging lens of Example 6 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 12C The distortion curve of the optical imaging lens of Example 6 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.12D The magnification chromatic aberration curve of the optical imaging lens of Example 6 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 12A to FIG. 12D It can be seen that the optical imaging lens provided in Example 6 can achieve good imaging quality.

[0164] Example 7

[0165] The following reference Figures 13 to 14D An optical imaging lens according to Embodiment 7 of the present application is described. Fig.13 A schematic structural diagram of an optical imaging lens according to Example 7 of the present application is shown.

[0166] like Fig.13 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0167] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has negative power, and its object side surface S7 is concave, and its image side surface S8 is concave. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0168] In this example, the total effective focal length f of the optical imaging lens is 4.92 mm, the total length TTL of the optical imaging lens is 5.60 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.6°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.80.

[0169] Table 13 shows the basic parameters of the optical imaging lens of Example 7, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 14-1 and 14-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 7, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0170]

[0171] Table 13

[0172] Face number A4 A6 A8 A10 A12 A14 A16 S1 -6.0456E-03 -1.1041E-02 -4.2058E-03 -9.7386E-04 -6.1961E-05 8.8165E-05 5.7008E-05 S2 -8.0831E-02 -3.6909E-03 3.8786E-03 1.8361E-03 5.0089E-04 1.1769E-04 5.3939E-05 S3 -6.7896E-02 1.5417E-02 3.4512E-03 1.0051E-03 2.4424E-04 4.1653E-06 2.0270E-05 S4 -2.6563E-02 2.6411E-03 -3.1096E-03 -2.0462E-03 -7.3797E-04 -2.7207E-04 4.7957E-05 S5 3.4118E-02 1.0846E-02 4.9351E-03 5.1500E-04 -2.7328E-04 -3.3904E-04 -5.9048E-05 S6 5.4156E-03 6.7497E-03 4.3007E-03 1.8541E-03 7.4206E-04 2.7277E-04 1.0687E-04 S7 -1.8951E-01 -2.5032E-02 -1.4381E-03 5.4507E-04 3.7303E-04 9.5867E-05 -8.8393E-07 S8 -3.0211E-01 -3.5056E-03 1.3215E-02 5.9022E-03 8.0366E-04 -3.8601E-04 -4.1336E-04 S9 -3.4320E-01 2.2094E-02 -2.8985E-02 -5.5780E-04 3.3186E-03 2.0505E-03 9.6111E-04 S10 -4.4149E-01 1.1825E-01 -7.3759E-02 5.4092E-03 4.7345E-03 -3.4885E-03 -1.0021E-03 S11 -1.3888E+00 2.6166E-01 2.8755E-02 -5.3392E-02 6.1700E-03 8.9969E-03 -4.3288E-03 S12 -2.9582E-01 9.8903E-02 4.4302E-02 -4.2015E-02 1.7022E-02 1.1862E-03 -3.8031E-03 S13 -8.4805E-01 6.5083E-01 -3.1206E-01 1.3423E-01 -4.0192E-02 1.2932E-02 -4.4825E-03 S14 -4.5896E+00 9.4181E-01 -3.4021E-01 1.7831E-01 -7.3368E-02 2.5433E-02 -1.7202E-02

[0173] Table 14-1

[0174] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.9865E-05 -3.0643E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 4.6506E-05 2.2293E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 3.1587E-05 1.3998E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 9.7719E-05 6.0300E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 2.9682E-05 4.8334E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 4.1503E-05 1.3342E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -1.7848E-05 -7.9156E-06 4.0237E-08 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 -2.1365E-04 -3.8353E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 3.7940E-04 2.4907E-04 -7.3345E-05 -5.9578E-05 -5.0131E-05 0.0000E+00 0.0000E+00 S10 8.8525E-04 1.9398E-04 -1.9504E-04 1.9164E-04 9.9713E-05 0.0000E+00 0.0000E+00 S11 -4.0218E-03 1.5917E-03 7.4203E-04 -6.8023E-04 -2.1331E-04 1.6588E-04 6.7207E-05 S12 -4.3921E-03 -8.8667E-05 1.6317E-03 8.6056E-04 1.7240E-04 -2.5668E-04 -2.5180E-04 S13 -2.1199E-03 -9.7890E-04 3.1279E-03 -5.0893E-04 -4.0562E-04 1.1399E-04 -9.1413E-05 S14 8.8853E-03 -1.5996E-03 4.3222E-03 -6.7996E-04 7.7359E-04 -6.4287E-04 4.8229E-05

[0175] Table 14-2

[0176] Fig.14A The axial chromatic aberration curve of the optical imaging lens of Example 7 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 14B The astigmatism curve of the optical imaging lens of Example 7 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 14C The distortion curve of the optical imaging lens of Example 7 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.14D The magnification chromatic aberration curve of the optical imaging lens of Example 7 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 14A to FIG. 14D It can be seen that the optical imaging lens provided in Example 7 can achieve good imaging quality.

[0177] Example 8

[0178] The following reference Figures 15 to 16D An optical imaging lens according to Example 8 of the present application is described. Fig.15 A schematic structural diagram of an optical imaging lens according to Example 8 of the present application is shown.

[0179] like Fig.15 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0180] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative power, and its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is concave, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0181] In this example, the total effective focal length f of the optical imaging lens is 4.92 mm, the total length TTL of the optical imaging lens is 5.60 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S17 of the optical imaging lens is 4.79 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 43.7°, and the ratio f / EPD of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is 1.80.

[0182] Table 15 shows the basic parameters of the optical imaging lens of Example 8, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 16-1 and 16-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 8, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0183]

[0184] Table 15

[0185]

[0186]

[0187] Table 16-1

[0188] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.6048E-05 -3.2766E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 4.2886E-05 2.0089E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 2.4899E-05 1.1447E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 1.1744E-04 6.9726E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 3.2211E-05 5.5823E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 4.6709E-05 1.0630E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -3.2043E-05 -2.5208E-05 3.9525E-08 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 -1.8386E-04 -2.1396E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 1.2385E-04 -3.6762E-05 -2.5269E-04 -1.4558E-04 -5.7233E-05 0.0000E+00 0.0000E+00 S10 8.5823E-04 3.0987E-04 -1.0154E-04 1.7942E-04 1.0275E-04 0.0000E+00 0.0000E+00 S11 -4.2654E-03 1.8373E-03 7.2292E-04 -7.7158E-04 -1.9361E-04 1.9999E-04 5.5086E-05 S12 -4.5370E-03 -1.0625E-04 1.5761E-03 8.5975E-04 2.1198E-04 -2.4563E-04 -2.7298E-04 S13 -2.0881E-03 -1.0926E-03 3.0952E-03 -4.8755E-04 -4.0899E-04 1.4567E-04 -1.0498E-04 S14 8.9710E-03 -1.7490E-03 4.1804E-03 -7.6296E-04 7.5044E-04 -6.1720E-04 6.8477E-05

[0189] Table 16-2

[0190] Fig.16A The axial chromatic aberration curve of the optical imaging lens of Example 8 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 16B The astigmatism curve of the optical imaging lens of Example 8 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 16C The distortion curve of the optical imaging lens of Example 8 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.16D The magnification chromatic aberration curve of the optical imaging lens of Example 8 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 16A to FIG. 16D It can be seen that the optical imaging lens provided in Example 8 can achieve good imaging quality.

[0191] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 17.

[0192]

[0193]

[0194] Table 17

[0195] The present application also provides an imaging device, whose electronic photosensitive element can be a photosensitive coupled device (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device can be an independent imaging device such as a digital camera, or an imaging module integrated in a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0196] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. An optical imaging lens, characterized in that: Along the optical axis from the object side to the image side, they include: The first lens has positive refractive power, and its object side surface is convex and its image side surface is concave; The second lens has a negative optical power, and its object side surface is convex and its image side surface is concave; The third lens has positive power and its object side surface is convex; a fourth lens having optical power; The fifth lens having optical power a sixth lens element having positive refractive power, whose object-side surface is convex and whose image-side surface is convex; and The seventh lens element has a negative optical power, and its object side surface is concave and its image side surface is concave; wherein at least one of the fourth lens and the fifth lens has positive optical power; The optical imaging lens has seven lenses with optical power; The distance TTL from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis and half the diagonal length ImgH of the effective pixel area of ​​the optical imaging lens satisfy the following conditions: 1.17≤TTL / ImgH≤1.2; The total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy: 1.78≤f / EPD≤1.8; The effective focal length f6 of the sixth lens, the effective focal length f7 of the seventh lens, and the combined focal length f67 of the sixth lens and the seventh lens satisfy: 0.77≤(f7-f6) / f67<0.9; and A curvature radius R11 of the object side surface of the sixth lens, a curvature radius R12 of the image side surface of the sixth lens, a curvature radius R13 of the object side surface of the seventh lens, and a curvature radius R14 of the image side surface of the seventh lens satisfy: 0.8<(R13+R14) / (R11+R12)<1.

0.

2. The optical imaging lens according to claim 1, wherein: The total effective focal length f of the optical imaging lens and half of the maximum field of view Semi-FOV of the optical imaging lens satisfy the following conditions: 4.68 mm≤f×tan(Semi-FOV)≤4.73 mm.

3. The optical imaging lens according to claim 1, wherein: The total effective focal length f of the optical imaging lens and the combined focal length f123 of the first lens, the second lens and the third lens satisfy: 0.98≤f / f123≤1.

02.

4. The optical imaging lens according to claim 1, wherein: The effective focal length f1 of the first lens, the curvature radius R1 of the object-side surface of the first lens, and the curvature radius R2 of the image-side surface of the first lens satisfy: 0.90≤f1 / (R1+R2)≤1.

14.

5. The optical imaging lens according to claim 1, wherein: An effective focal length f2 of the second lens, a curvature radius R3 of the object-side surface of the second lens, and a curvature radius R4 of the image-side surface of the second lens satisfy: -0.69≤(R3+R4) / f2<-0.

5.

6. The optical imaging lens according to claim 1, wherein: The effective focal length f3 of the third lens and the curvature radius R5 of the object side surface of the third lens satisfy: 0.4<R5 / f3<0.

6.

7. The optical imaging lens according to claim 1, wherein: A distance SAG71 from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis and a distance SAG72 from the intersection of the image side surface of the seventh lens and the optical axis to the vertex of the effective radius of the image side surface of the seventh lens on the optical axis satisfy: 0.70≤SAG72 / SAG71≤0.

82.

8. The optical imaging lens according to claim 1, wherein: The distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens on the optical axis, the distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens on the optical axis, and the distance SAG62 from the intersection of the image side surface of the sixth lens and the optical axis to the vertex of the effective radius of the image side surface of the sixth lens on the optical axis satisfy: 0.77≤(SAG41+SAG42) / SAG62≤0.

91.

9. The optical imaging lens according to claim 1, wherein: An edge thickness ET2 of the second lens and an edge thickness ET7 of the seventh lens satisfy: 0.46≤ET2 / ET7≤0.

54.

10. The optical imaging lens according to claim 1, wherein: The edge thickness ET5 of the fifth lens and the edge thickness ET6 of the sixth lens satisfy: 0.76≤ET5 / ET6<0.

9.

11. The optical imaging lens according to claim 1, wherein: The center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, the center thickness CT3 of the third lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, the center thickness CT6 of the sixth lens on the optical axis, and the center thickness CT7 of the seventh lens on the optical axis satisfy: 0.98≤(CT1+CT2+CT3) / (CT5+CT6+CT7)≤1.

04.

12. The optical imaging lens according to claim 1, wherein: A center thickness CT4 of the fourth lens on the optical axis and a spacing distance T34 between the third lens and the fourth lens on the optical axis satisfy: 0.89≤CT4 / T34≤1.04.

Images