Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which includes, 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 optical power; a fourth lens with optical power; a fifth lens with optical power; a sixth lens with negative optical power; and a seventh lens with optical power. The distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis and the total effective focal length of the optical imaging lens satisfy TTL / f<0.9, and the air interval T45 between the fourth lens and the fifth lens on the optical axis and the air interval T67 between the sixth lens and the seventh lens on the optical axis satisfy 0.5<T67 / T45<1.0, so that the optical imaging lens has the characteristics of a large image surface and a long focal length.

Description

Technical Field

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

[0002] With the rapid development of portable electronic products, especially with the popularization and development of mobile phones, people's demand for optical imaging lenses used in portable electronic products is constantly increasing. For example, mainstream mobile phones currently generally use a combination of optical imaging lenses with a large image plane lens, a wide-angle lens and a telephoto lens to meet various shooting needs. The telephoto lens included in the combined optical imaging lens can compress the spatial distance, increase the layering of the imaging, and make the captured picture more compact. However, the total optical length of this telephoto lens is often relatively long, and because its image plane is generally small, it needs to be used in combination with a large image plane lens, resulting in the optical imaging lens occupying a large space in portable electronic products.

[0003] Therefore, how to obtain a larger imaging surface while taking into account the telephoto characteristics is an urgent problem to be solved in optical imaging lenses currently used in portable electronic products. Summary of the invention

[0004] The present application provides an optical imaging lens that can be applied to portable electronic products and can at least solve or partially solve at least one of the above-mentioned shortcomings in the prior art, such as an optical imaging lens with a large image surface and long focal length characteristics.

[0005] One aspect of the present application provides an optical imaging lens, which may include, 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 optical power; a fourth lens with optical power; a fifth lens with optical power; a sixth lens with negative optical power; and a seventh lens with optical power, wherein a distance TTL from the object side of the first lens to an imaging plane of the optical imaging lens on the optical axis and a total effective focal length f of the optical imaging lens may satisfy: TTL / f<0.9; and an air interval T45 between the fourth lens and the fifth lens on the optical axis and an air interval T67 between the sixth lens and the seventh lens on the optical axis may satisfy: 0.5<T67 / T45<1.0.

[0006] In one embodiment, a distance BFL from the image side surface of the seventh lens to the imaging plane on the optical axis and 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 may satisfy: 0.3<BFL / TTL<0.8.

[0007] In one embodiment, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy: -1.3<f1 / f2<-0.3.

[0008] In one embodiment, the effective focal length f5 of the fifth lens and the effective focal length f7 of the seventh lens may satisfy: -1.5<f5 / f7<-0.5.

[0009] In one embodiment, the effective focal length f6 of the sixth lens and the total effective focal length f of the optical imaging lens may satisfy: -1.0<f6 / f<-0.3.

[0010] In one embodiment, a curvature radius R1 of the object-side surface of the first lens, a curvature radius R4 of the image-side surface of the second lens, and a curvature radius R5 of the object-side surface of the third lens may satisfy: 0<R4 / (R1+R5)<1.0.

[0011] In one embodiment, a curvature radius R10 of the image-side surface of the fifth lens and a curvature radius R11 of the object-side surface of the sixth lens may satisfy: 0<R10 / (R10+R11)<1.0.

[0012] In one embodiment, the on-axis distance SAG31 from the intersection of the object side surface of the third lens and the optical axis to the effective radius vertex of the object side surface of the third lens and the on-axis distance SAG61 from the intersection of the object side surface of the sixth lens and the optical axis to the effective radius vertex of the object side surface of the sixth lens may satisfy: 0.3<SAG31 / (SAG31-SAG61)<0.8.

[0013] In one embodiment, the combined focal length f1234 of the first lens, the second lens, the third lens, and the fourth lens and the combined focal length f56 of the fifth lens and the sixth lens may satisfy: -1.0<f1234 / f56<0.

[0014] In one embodiment, an edge thickness ET1 of the first lens, an edge thickness ET2 of the second lens, and an edge thickness ET3 of the third lens may satisfy: 0.4<ET2 / (ET1+ET3)<1.0.

[0015] In one embodiment, the maximum effective radius DT12 of the image-side surface of the first lens and the maximum effective radius DT61 of the object-side surface of the sixth lens may satisfy: 0.5<DT61 / DT12<1.0.

[0016] In one embodiment, an edge thickness ET7 of the seventh lens and a maximum effective radius DT72 of the image-side surface of the seventh lens may satisfy: 0.3<ET7 / DT72<0.8.

[0017] In one implementation, a center thickness CT6 of the sixth lens on the optical axis and an edge thickness ET6 of the sixth lens may satisfy: 0.5<CT6 / ET6<1.0.

[0018] 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 CT4 of the fourth lens on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis may satisfy: 0.8<(CT1+CT2) / (CT3+CT4+CT5)<1.5.

[0019] In one embodiment, the object-side surface of the third lens is convex; the fifth lens has positive refractive power and the image-side surface thereof is convex; and the seventh lens has negative refractive power.

[0020] On the other hand, the present application provides an optical imaging lens, which may include, 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 optical power; a fourth lens with optical power; a fifth lens with optical power; a sixth lens with negative optical power; and a seventh lens with optical power, wherein 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 total effective focal length f of the optical imaging lens may satisfy: TTL / f<0.9; and an effective focal length of the sixth lens and the total effective focal length f of the optical imaging lens may satisfy: -1.0<f6 / f<-0.3.

[0021] In one embodiment, a distance BFL from the image side surface of the seventh lens to the imaging plane on the optical axis and 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 may satisfy: 0.3<BFL / TTL<0.8.

[0022] In one embodiment, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy: -1.3<f1 / f2<-0.3.

[0023] In one embodiment, the effective focal length f5 of the fifth lens and the effective focal length f7 of the seventh lens may satisfy: -1.5<f5 / f7<-0.5.

[0024] In one embodiment, an air interval T45 between the fourth lens and the fifth lens on the optical axis and an air interval T67 between the sixth lens and the seventh lens on the optical axis may satisfy: 0.5<T67 / T45<1.0.

[0025] In one embodiment, a curvature radius R1 of the object-side surface of the first lens, a curvature radius R4 of the image-side surface of the second lens, and a curvature radius R5 of the object-side surface of the third lens may satisfy: 0<R4 / (R1+R5)<1.0.

[0026] In one embodiment, a curvature radius R10 of the image-side surface of the fifth lens and a curvature radius R11 of the object-side surface of the sixth lens may satisfy: 0<R10 / (R10+R11)<1.0.

[0027] In one embodiment, the on-axis distance SAG31 from the intersection of the object side surface of the third lens and the optical axis to the effective radius vertex of the object side surface of the third lens and the on-axis distance SAG61 from the intersection of the object side surface of the sixth lens and the optical axis to the effective radius vertex of the object side surface of the sixth lens may satisfy: 0.3<SAG31 / (SAG31-SAG61)<0.8.

[0028] In one embodiment, the combined focal length f1234 of the first lens, the second lens, the third lens, and the fourth lens and the combined focal length f56 of the fifth lens and the sixth lens may satisfy: -1.0<f1234 / f56<0.

[0029] In one embodiment, an edge thickness ET1 of the first lens, an edge thickness ET2 of the second lens, and an edge thickness ET3 of the third lens may satisfy: 0.4<ET2 / (ET1+ET3)<1.0.

[0030] In one embodiment, the maximum effective radius DT12 of the image-side surface of the first lens and the maximum effective radius DT61 of the object-side surface of the sixth lens may satisfy: 0.5<DT61 / DT12<1.0.

[0031] In one embodiment, an edge thickness ET7 of the seventh lens and a maximum effective radius DT72 of the image-side surface of the seventh lens may satisfy: 0.3<ET7 / DT72<0.8.

[0032] In one implementation, a center thickness CT6 of the sixth lens on the optical axis and an edge thickness ET6 of the sixth lens may satisfy: 0.5<CT6 / ET6<1.0.

[0033] 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 CT4 of the fourth lens on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis may satisfy: 0.8<(CT1+CT2) / (CT3+CT4+CT5)<1.5.

[0034] In one embodiment, the object-side surface of the third lens is convex; the fifth lens has positive refractive power and the image-side surface thereof is convex; and the seventh lens has negative refractive power.

[0035] The optical imaging lens provided in the present application uses multiple lenses, such as the first lens to the seventh lens. By reasonably controlling the relationship between the total optical length and the total effective focal length in the optical imaging system, and optimizing the surface shape, optical focal length and air spacing between each lens, an optical imaging lens with long focal length and large image surface characteristics can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features, purposes and advantages of the present application will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0037] Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown;

[0038] 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;

[0039] Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown;

[0040] 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;

[0041] Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown;

[0042] 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;

[0043] Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0044] 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;

[0045] Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown;

[0046] 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;

[0047] Fig.11 A schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application is shown;

[0048] FIG. 12A to FIG. 12D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 6 are respectively shown;

[0049] Fig.13 A schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application is shown;

[0050] 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;

[0051] Fig.15 A schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application is shown;

[0052] 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;

[0053] Fig.17 A schematic structural diagram of an optical imaging lens according to Embodiment 9 of the present application is shown;

[0054] 18A to 18D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 9 are respectively shown;

[0055] Fig.19 A schematic structural diagram of an optical imaging lens according to Embodiment 10 of the present application is shown; and

[0056] FIG. 20A to FIG. 20D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 10 are respectively shown. DETAILED DESCRIPTION

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] The features, principles and other aspects of the present application are described in detail below.

[0065] 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. In the first lens to the seventh lens, each adjacent two lenses may have an air gap between them.

[0066] In an exemplary embodiment, the first lens has positive or negative optical power; the second lens has positive or negative optical power; the third lens has positive or negative optical power; the fourth lens has positive or negative optical power; the fifth lens has positive or negative optical power; the sixth lens may have negative optical power; and the seventh lens has positive or negative optical power. The sixth lens with negative optical power can reduce the deflection angle of the incident light entering the optical imaging lens, so that the light can be better converged on the imaging surface of the optical imaging lens, while increasing the molding stability of the sixth lens.

[0067] In example embodiments, the object-side surface of the first lens may be a convex surface.

[0068] In example embodiments, the image-side surface of the second lens may be a concave surface.

[0069] In example embodiments, the object-side surface of the third lens may be a convex surface.

[0070] In example embodiments, the image-side surface of the fifth lens may be a convex surface.

[0071] In example embodiments, the object-side surface of the sixth lens may be a concave surface.

[0072] In an exemplary embodiment, the distance TTL from the object side of the first lens to the imaging plane of the optical imaging lens on the optical axis and the total effective focal length f of the optical imaging lens may satisfy: TTL / f<0.9. For example, 0.6<TTL / f<0.9. By controlling the ratio of the distance from the object side of the first lens to the imaging plane on the optical axis to the total effective focal length of the optical imaging lens within a reasonable numerical range, the total optical length in the optical imaging system can be prevented from growing synchronously with the growth of the total effective focal length, so that the optical imaging lens has better practicality.

[0073] In an exemplary embodiment, the air interval T45 between the fourth lens and the fifth lens on the optical axis and the air interval T67 between the sixth lens and the seventh lens on the optical axis may satisfy: 0.5<T67 / T45<1.0. For example, 0.5<T67 / T45<0.7. By controlling the ratio of the air interval between the fourth lens and the fifth lens on the optical axis to the air interval between the sixth lens and the seventh lens on the optical axis within a reasonable numerical range, the optical imaging lens can be prevented from generating ghost images, and the optical imaging lens can have a better function of correcting spherical aberration and distortion.

[0074] In an exemplary embodiment, the distance BFL from the image side surface of the seventh lens to the imaging surface on the optical axis and the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis may satisfy: 0.3<BFL / TTL<0.8. For example, 0.3<BFL / TTL<0.6. Reasonable control of the relationship between the total optical length of the optical imaging lens and its back focus is conducive to reducing the risk of assembling the optical imaging lens and leaving sufficient assembly space at the rear end of the optical imaging system.

[0075] In an exemplary embodiment, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens may satisfy: -1.3<f1 / f2<-0.3. For example, -0.9<f1 / f2<-0.5. By controlling the ratio of the effective focal lengths of the first lens and the second lens within a reasonable numerical range, the spherical aberration value of the first lens and the second lens can be reasonably controlled, so that the optical imaging lens obtains good imaging quality in the on-axis field of view direction.

[0076] In an exemplary embodiment, the effective focal length f5 of the fifth lens and the effective focal length f7 of the seventh lens may satisfy: -1.5<f5 / f7<-0.5. For example, -1.3<f5 / f7<-0.7. By controlling the ratio of the effective focal lengths of the fifth lens and the seventh lens within a reasonable numerical range, it is beneficial to balance the off-axis aberrations of the optical imaging system.

[0077] In an exemplary embodiment, the effective focal length f6 of the sixth lens and the total effective focal length f of the optical imaging lens may satisfy: -1.0<f6 / f<-0.3. For example, -0.8<f6 / f<-0.4. Reasonable control of the relationship between the effective focal length of the sixth lens and the total effective focal length of the optical imaging lens is conducive to avoiding the sixth lens from being difficult to process due to having too many light converging functions, and also avoiding the optical imaging system from having poor imaging effects due to excessive depth of field.

[0078] In an exemplary embodiment, the curvature radius R1 of the object side surface of the first lens, the curvature radius R4 of the image side surface of the second lens, and the curvature radius R5 of the object side surface of the third lens may satisfy: 0<R4 / (R1+R5)<1.0. Reasonable control of the relationship between the curvature radii of the object side surface of the first lens, the image side surface of the second lens, and the object side surface of the third lens can make the angle value of the light of the edge field of view in the optical imaging system within a reasonable range, effectively reducing the sensitivity of the optical imaging system.

[0079] In an exemplary embodiment, the curvature radius R10 of the image side surface of the fifth lens and the curvature radius R11 of the object side surface of the sixth lens may satisfy: 0<R10 / (R10+R11)<1.0. For example, 0.4<R10 / (R10+R11)<1.0. By controlling the ratio of the curvature radius of the image side surface of the fifth lens to the object side surface of the sixth lens within a reasonable numerical range, the light entering the optical imaging lens can be better converged, and at the same time, the problem of difficult processing due to the excessive curvature of the surface of the fifth lens and the sixth lens can be avoided, which can effectively improve the practicality of the optical imaging lens.

[0080] In an exemplary embodiment, the on-axis distance SAG31 from the intersection of the object side surface of the third lens and the optical axis to the vertex of the effective radius of the object side surface of the third lens and the on-axis distance SAG61 from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens may satisfy: 0.3<SAG31 / (SAG31-SAG61)<0.8. By controlling the ratio of the sagitta of the object side surface of the third lens to the sagitta of the object side surface of the sixth lens within a reasonable numerical range, the third lens and the sixth lens can be prevented from being excessively bent, the difficulty of processing the optical imaging lens can be reduced, and the optical imaging lens can also have better assembly stability.

[0081] In an exemplary embodiment, the combined focal length f1234 of the first lens, the second lens, the third lens and the fourth lens and the combined focal length f56 of the fifth lens and the sixth lens may satisfy: -1.0<f1234 / f56<0. For example, -0.6<f1234 / f56<-0.1. By reasonably controlling the relationship between the combined focal lengths of the first to fourth lenses and the combined focal lengths of the fifth and sixth lenses, the field curvature value of the optical imaging system can be constrained within a certain range, thereby improving the imaging quality of the optical imaging system.

[0082] In an exemplary embodiment, the edge thickness ET1 of the first lens, the edge thickness ET2 of the second lens, and the edge thickness ET3 of the third lens may satisfy: 0.4<ET2 / (ET1+ET3)<1.0. Reasonable control of the relationship between the edge thicknesses of the first lens, the second lens, and the third lens can effectively control the distortion value of each field of view in the optical imaging system within a reasonable range, and ultimately control the distortion amount of the optical imaging lens within the range of 0-3%, thereby improving the imaging quality of the optical imaging lens.

[0083] In an exemplary embodiment, the maximum effective radius DT12 of the image side surface of the first lens and the maximum effective radius DT61 of the object side surface of the sixth lens may satisfy: 0.5<DT61 / DT12<1.0. By controlling the ratio of the maximum effective radius of the image side surface of the first lens to the maximum effective radius of the object side surface of the sixth lens within a reasonable numerical range, the deflection angle of the light entering the sixth lens can be effectively reduced, and the coma aberration of the optical imaging system can be reduced, thereby improving the imaging quality of the optical imaging system.

[0084] In an exemplary embodiment, the edge thickness ET7 of the seventh lens and the maximum effective radius DT72 of the image side surface of the seventh lens may satisfy: 0.3<ET7 / DT72<0.8. For example, 0.3<ET7 / DT72<0.6. By controlling the ratio of the edge thickness of the seventh lens to the maximum effective radius of the image side surface of the seventh lens within a reasonable numerical range, the molding risk of the seventh lens can be reduced, and the assembly stability of the seventh lens can be improved.

[0085] In an exemplary embodiment, the center thickness CT6 of the sixth lens on the optical axis and the edge thickness ET6 of the sixth lens may satisfy: 0.5<CT6 / ET6<1.0. By controlling the ratio of the center thickness of the sixth lens on the optical axis to its edge thickness within a reasonable range, the strength of the sixth lens can be increased, the molding risk of the sixth lens in the preparation process can be effectively reduced, and the molding stability of the sixth lens can be improved.

[0086] In an exemplary 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 CT4 of the fourth lens on the optical axis, and the center thickness CT5 of the fifth lens on the optical axis may satisfy: 0.8<(CT1+CT2) / (CT3+CT4+CT5)<1.5. Reasonable control of the relationship between the center thicknesses of the first lens, the second lens, the third lens, the fourth lens, and the fifth lens on the optical axis can reasonably regulate the distortion of the optical imaging system, and ultimately control the distortion of the optical imaging system within a certain range.

[0087] In an exemplary embodiment, the object side surface of the third lens is convex; the fifth lens has positive optical power and its image side surface is convex; and the seventh lens has negative optical power. The optical imaging lens satisfies the above distribution of optical power and surface shape, which can effectively increase the focal length of the optical imaging system, better converge the light entering the optical imaging system, and at the same time help to reduce the incident angle of the light, improve the field curvature of the optical imaging system, and balance the aberration of the optical imaging system.

[0088] In an exemplary embodiment, the optical imaging lens may further include an aperture. The aperture may be disposed at an appropriate position as required. For example, the aperture may be disposed 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.

[0089] The present application proposes an optical imaging lens with characteristics such as a large image surface and a long focal length. The optical imaging lens according to the above-mentioned embodiment of the present application can use multiple lenses, such as the seven lenses mentioned above. By reasonably allocating the focal length, surface shape, center thickness of each lens, and axial spacing between each lens, etc., 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, making the optical imaging lens more conducive to production and processing.

[0090] In an exemplary embodiment, 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 an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having 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.

[0091] 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.

[0092] 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.

[0093] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0094] Example 1

[0095] The following reference Figures 1 to 2D An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1 is a schematic diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application.

[0096] like Figure 1 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0097] 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 positive 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 concave, and its image side surface S10 is convex. The sixth lens E6 has negative focal power, and its object side surface S11 is concave, 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.

[0098] 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).

[0099]

[0100]

[0101] Table 1

[0102] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 19.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0103] 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:

[0104]

[0105] 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. Table 2 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspheric mirror surface S1-S14 in Example 1.

[0106] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 7.7088E-03 1.4149E-03 1.0342E-03 -6.3918E-04 -2.5498E-05 -3.9069E-05 -3.9128E-05 5.7145E-06 1.2112E-05 S2 1.4116E-01 -2.0907E-02 7.2113E-03 -3.7777E-03 1.3868E-03 -4.5047E-04 2.1931E-04 1.3918E-04 -3.4039E-05 S3 -4.8559E-02 3.7684E-03 4.7748E-05 3.2535E-04 2.3689E-04 -3.0083E-04 4.0869E-04 -9.3763E-05 -1.2803E-05 S4 -6.6462E-02 4.4793E-03 -6.7457E-04 3.9572E-04 -1.5395E-04 -4.1095E-04 1.1484E-04 -3.0111E-04 -2.4891E-04 S5 1.4176E-01 -2.1985E-02 6.1307E-03 -2.7811E-03 6.7980E-04 1.1850E-04 -5.3151E-04 2.0897E-04 -2.4627E-04 S6 -2.4155E-02 1.3090E-02 -5.9132E-03 2.6797E-03 -1.3488E-03 8.0763E-04 -6.1556E-04 4.0456E-04 -1.5868E-04 S7 -5.8314E-03 3.7154E-03 -1.7490E-03 6.0609E-04 -5.4037E-04 -8.4589E-05 4.2622E-05 -3.4857E-04 -2.0194E-04 S8 4.0527E-02 -1.8097E-02 7.3051E-03 -2.3166E-03 1.1911E-03 -3.4127E-04 2.8410E-04 -3.5575E-04 -7.3954E-06 S9 -2.0042E-01 8.7482E-03 1.9835E-03 -1.4214E-03 6.3504E-04 -6.6005E-05 2.9124E-05 -3.0667E-05 5.3277E-06 S10 -1.6990E-01 1.6171E-02 4.6594E-04 -6.7489E-04 -3.4023E-05 1.1888E-04 5.8627E-05 1.0505E-04 -1.1095E-04 S11 -1.0552E-02 -2.4522E-02 9.5580E-03 4.1545E-04 -1.7245E-04 3.1050E-04 -3.7927E-05 1.3547E-04 -1.7869E-04 S12 -1.9188E-01 -3.9493E-02 1.0907E-02 5.3727E-06 4.4473E-04 5.0154E-05 -3.7916E-05 3.4691E-05 -1.0827E-05 S13 -5.6269E-01 1.4613E-02 2.5260E-03 1.0098E-03 3.0878E-04 -4.2154E-05 9.3332E-06 5.1747E-05 3.0213E-05 S14 -3.9675E-01 4.5165E-02 -9.7512E-04 3.2260E-04 2.3747E-05 -3.3820E-05 2.4591E-05 4.4305E-05 8.3988E-06

[0107] Table 2

[0108] 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 2C The 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.

[0109] Example 2

[0110] The following reference Figures 3 to 4D An optical imaging lens according to Embodiment 2 of the present application is described. Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown.

[0111] like Figure 3 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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 convex. 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 convex, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has negative power, and its object side surface S11 is concave, 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 embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 19.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0114] 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 millimeters (mm).

[0115]

[0116]

[0117] Table 3

[0118] In Example 2, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. Table 4 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 2.

[0119] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 4.1785E-04 -1.0679E-03 -6.2763E-04 -1.0144E-03 -1.2385E-04 3.8844E-05 -4.8569E-05 -1.4796E-05 4.0551E-06 S2 1.5234E-01 -2.1276E-02 6.3653E-03 -3.8344E-03 1.2368E-03 -3.8988E-04 7.6344E-05 5.4765E-05 -4.1018E-05 S3 -4.7288E-02 4.4540E-03 4.1460E-04 9.0935E-05 3.0629E-04 -6.0182E-04 5.7289E-04 -2.3763E-04 -5.9684E-05 S4 -6.8395E-02 6.4601E-03 -6.1756E-04 1.0302E-03 7.4161E-05 -3.9184E-04 3.3970E-04 -9.9733E-05 -2.2354E-04 S5 1.4670E-01 -2.0405E-02 9.0909E-03 -2.8019E-03 4.6226E-04 3.7917E-04 -8.8045E-04 3.9990E-04 -2.0285E-04 S6 -3.1755E-02 1.2479E-02 -5.5899E-03 2.3599E-03 -1.6591E-03 8.8121E-04 -9.6391E-04 3.1088E-04 5.4857E-05 S7 2.1578E-03 5.7420E-03 -1.3955E-03 8.4120E-04 -2.4411E-04 -3.1129E-05 2.1210E-04 -3.8308E-04 4.8226E-05 S8 3.0150E-02 -1.5127E-02 1.0128E-02 -3.3150E-03 9.3598E-04 -5.5494E-04 3.5453E-04 -2.6508E-04 2.0603E-05 S9 -2.1650E-01 6.6652E-03 4.9706E-03 -4.7019E-03 6.2312E-05 -3.9130E-04 -4.5284E-05 4.3158E-06 1.2190E-05 S10 -1.8030E-01 1.4728E-02 5.1190E-03 -2.8844E-03 2.4538E-05 -2.1736E-04 -1.9271E-04 8.1532E-05 -1.2285E-05 S11 -2.1387E-02 -3.1474E-02 9.9371E-03 -1.2880E-04 -3.1392E-04 3.2551E-04 -3.2684E-04 9.3465E-05 -2.3405E-05 S12 -2.1469E-01 -5.2087E-02 1.0601E-02 -1.0485E-03 1.2702E-04 2.0243E-04 -1.3374E-04 2.3751E-05 2.2155E-06 S13 -5.6194E-01 1.0163E-02 7.2360E-03 1.7111E-03 1.0686E-03 5.9054E-05 -1.4831E-04 -2.1052E-05 -3.7118E-06 S14 -3.8720E-01 4.7321E-02 2.4115E-03 8.5359E-04 7.0523E-04 -3.6734E-05 -8.4050E-05 6.3019E-06 -2.3612E-05

[0120] Table 4

[0121] 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.

[0122] Example 3

[0123] 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.

[0124] like Figure 3 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0125] 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 concave, and its image side surface S4 is concave. The third lens E3 has negative 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 convex, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has negative power, and its object side surface S11 is concave, 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.

[0126] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 19.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0127] 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 millimeters (mm).

[0128]

[0129] Table 5

[0130] In Example 3, the object side surface and the image side surface of any lens from the first lens E1 to the seventh lens E7 are aspherical surfaces. Table 6 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspherical mirror surfaces S1-S14 in Example 3.

[0131]

[0132]

[0133] Table 6

[0134] 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 6C The 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.

[0135] Example 4

[0136] 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.

[0137] like Figure 7 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0138] 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 convex, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has negative power, and its object side surface S11 is concave, 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.

[0139] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 19.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0140] Table 7 shows a basic parameter table of the optical imaging lens of Example 4, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0141]

[0142]

[0143] Table 7

[0144] In Example 4, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. Table 8 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 4.

[0145] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 8.0511E-03 -1.4693E-03 -4.9005E-04 -1.3013E-03 -3.6618E-04 -6.9288E-05 -1.1406E-04 -4.2163E-05 -2.7615E-06 S2 1.4674E-01 -2.0778E-02 5.2591E-03 -4.3521E-03 5.7298E-04 -4.1852E-04 -2.3373E-04 1.6588E-05 -3.1379E-05 S3 -4.7239E-02 5.3732E-03 3.8803E-04 9.7628E-04 1.6627E-04 -4.5231E-04 3.6207E-04 -2.3643E-04 -3.8348E-05 S4 -7.2154E-02 3.8105E-03 5.0172E-04 1.5048E-03 4.7387E-04 -2.3885E-04 3.3007E-04 -3.3193E-04 -2.1124E-04 S5 1.3576E-01 -2.3346E-02 9.4418E-03 -4.1339E-03 5.0447E-04 -1.9587E-04 -1.0056E-03 4.1105E-05 -1.7366E-04 S6 -5.1974E-03 1.5297E-02 -3.1829E-03 4.1984E-03 -7.3193E-04 8.8332E-04 -7.7297E-04 1.8591E-04 7.3754E-05 S7 -1.2040E-03 7.4138E-03 1.0991E-03 2.1713E-03 1.5331E-04 3.7255E-04 3.1345E-04 -2.6392E-04 6.2962E-05 S8 3.0510E-02 -1.6443E-02 1.0741E-02 -3.8496E-03 8.0927E-04 -3.1174E-04 3.6683E-04 -2.1927E-04 2.1235E-05 S9 -2.2572E-01 1.7900E-03 6.8039E-03 -5.8254E-03 2.3723E-04 -2.5937E-04 5.0855E-05 -1.5091E-05 8.4260E-06 S10 -1.8319E-01 1.4562E-02 7.0566E-03 -3.3830E-03 8.2016E-05 -2.0384E-04 -2.1087E-04 9.2246E-05 -1.2545E-05 S11 -1.6656E-02 -3.5765E-02 9.7500E-03 3.9983E-04 -6.9002E-04 1.5855E-04 -5.3267E-04 1.5855E-04 -2.5081E-05 S12 -2.5852E-01 -5.9945E-02 1.2740E-02 -1.2689E-03 6.3132E-05 1.4531E-04 -1.9052E-04 5.4620E-05 -3.5592E-06 S13 -5.6358E-01 1.1129E-02 1.0022E-02 8.9095E-04 9.7875E-04 9.5334E-06 -1.1293E-04 2.4199E-06 1.3342E-05 S14 -3.8075E-01 4.8605E-02 3.2738E-03 1.6239E-04 9.2056E-04 1.8275E-05 -7.2008E-06 2.9294E-05 -6.2158E-06

[0146] Table 8

[0147] 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.

[0148] Example 5

[0149] 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.

[0150] like Fig. 9 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0151] 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 convex, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has negative power, and its object side surface S11 is concave, and its image side surface S12 is convex. The seventh lens E7 has negative power, and its object side surface S13 is convex, 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.

[0152] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 19.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0153] 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 millimeters (mm).

[0154]

[0155] Table 9

[0156] In Example 5, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. The following Table 10 lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 5.

[0157]

[0158]

[0159] Table 10

[0160] 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. 10C The 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.

[0161] Example 6

[0162] The following reference Figures 11 to 12D An optical imaging lens according to Example 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.

[0163] like Fig.11 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0164] 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 convex, and its image side surface S8 is concave. The fifth lens E5 has positive power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has negative power, and its object side surface S11 is concave, 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 convex. 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.

[0165] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 19.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0166] Table 11 shows a basic parameter table of the optical imaging lens of Example 6, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0167]

[0168]

[0169] Table 11

[0170] In Example 6, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. Table 12 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 6.

[0171] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 8.5619E-03 8.0792E-05 -1.5905E-04 -8.3171E-04 -1.0870E-04 5.4206E-05 -8.7922E-05 -1.8010E-05 5.1399E-06 S2 1.4303E-01 -2.1961E-02 5.8426E-03 -3.9548E-03 1.0164E-03 -4.3746E-04 -1.4430E-04 1.2673E-04 -9.4280E-05 S3 -4.7370E-02 4.7142E-03 -2.8144E-06 1.7582E-04 1.3590E-04 -5.4288E-04 5.0382E-04 -2.7315E-04 -6.0012E-05 S4 -6.6135E-02 5.3392E-03 -5.9570E-04 7.9075E-04 3.3905E-05 -4.8952E-04 2.3286E-04 -4.1874E-04 -3.3976E-04 S5 1.4014E-01 -2.2120E-02 8.2830E-03 -2.9170E-03 1.2774E-04 7.9944E-05 -1.1984E-03 2.8963E-04 -3.4093E-04 S6 -2.4583E-02 1.2917E-02 -5.7017E-03 2.5080E-03 -1.4490E-03 1.0415E-03 -8.6772E-04 3.3400E-04 2.4028E-04 S7 -4.6307E-03 5.0138E-03 -1.3088E-03 7.5931E-04 -3.9819E-04 4.4108E-05 2.8796E-04 -5.4765E-04 2.0431E-04 S8 3.8745E-02 -1.6197E-02 9.3612E-03 -3.2195E-03 5.8398E-04 -6.6807E-04 3.1861E-04 -3.2602E-04 5.2274E-05 S9 -2.1076E-01 3.5673E-03 3.4887E-03 -4.5389E-03 2.2377E-05 -4.4405E-04 1.3160E-04 4.6729E-05 1.9322E-05 S10 -1.8015E-01 1.1252E-02 3.3420E-03 -3.4657E-03 -2.2884E-04 -5.0669E-04 -1.3074E-04 1.0804E-04 1.1602E-05 S11 -1.7352E-02 -3.3001E-02 9.2372E-03 -4.0536E-04 -5.3636E-04 1.2180E-04 -5.6919E-04 9.9052E-05 -7.7756E-06 S12 -2.3665E-01 -5.6642E-02 1.1989E-02 -5.2439E-04 1.4766E-04 2.8653E-04 -2.7839E-04 5.4950E-05 3.6138E-06 S13 -5.5091E-01 6.9351E-03 1.0838E-02 2.5856E-03 1.1418E-03 1.1067E-04 -1.8940E-04 -4.5400E-05 -2.2603E-07 S14 -3.0761E-01 4.4028E-02 6.8829E-03 1.4229E-03 1.0625E-03 1.6733E-04 -4.2979E-05 2.4505E-05 -8.0216E-06

[0172] Table 12

[0173] 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.

[0174] Example 7

[0175] 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.

[0176] like Fig.13 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0177] 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 convex. The fifth lens E5 has positive power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has negative power, and its object side surface S11 is concave, and its image side surface S12 is concave. The seventh lens E7 has negative power, and its object side surface S13 is convex, 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.

[0178] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 20.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0179] Table 13 shows a basic parameter table of the optical imaging lens of Example 7, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0180]

[0181] Table 13

[0182] In Example 7, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. Table 14 below lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 7.

[0183]

[0184]

[0185] Table 14

[0186] 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.

[0187] Example 8

[0188] 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.

[0189] like Fig.15 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0190] 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 convex, and its image side surface S8 is convex. The fifth lens E5 has positive power, and its object side surface S9 is concave, and its image side surface S10 is convex. The sixth lens E6 has negative power, and its object side surface S11 is concave, and its image side surface S12 is concave. 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.

[0191] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 20.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 16.9°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0192] Table 15 shows a basic parameter table of the optical imaging lens of Example 8, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0193]

[0194]

[0195] Table 15

[0196] In Example 8, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. The following Table 16 lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 8.

[0197] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 9.7354E-03 -2.9203E-03 1.0255E-03 -6.7597E-04 -1.3279E-05 3.9172E-05 -7.0586E-05 1.2415E-05 4.4793E-06 S2 1.4377E-01 -2.0719E-02 6.5586E-03 -3.3056E-03 9.9873E-04 -3.3840E-04 4.0456E-05 5.5106E-05 -1.2252E-04 S3 -4.7829E-02 3.9599E-03 1.8655E-04 1.0257E-04 1.9987E-04 -3.9101E-04 3.4897E-04 -2.2463E-04 -7.0816E-05 S4 -6.8011E-02 4.2625E-03 -1.2733E-04 4.2562E-04 -1.2109E-07 -4.2318E-04 1.4769E-04 -2.7603E-04 -6.9488E-05 S5 1.4177E-01 -2.1474E-02 6.3256E-03 -3.1032E-03 4.7375E-04 -2.0211E-04 -5.8631E-04 2.3264E-04 -1.9078E-04 S6 -2.1860E-02 1.2494E-02 -6.4359E-03 2.4559E-03 -1.4880E-03 6.4851E-04 -6.8596E-04 3.0279E-04 -2.5937E-04 S7 -8.4801E-03 4.3472E-03 -1.5972E-03 9.0471E-04 -6.5904E-04 6.2269E-06 -5.8276E-05 -3.0309E-04 -6.8675E-05 S8 4.5413E-02 -1.7784E-02 7.9641E-03 -3.4601E-03 1.0356E-03 -5.7976E-04 2.5237E-04 -2.7459E-04 8.8972E-05 S9 -2.1271E-01 1.3097E-02 -7.8117E-04 -3.6405E-03 1.6260E-04 -4.6205E-04 1.1691E-04 -1.1564E-05 2.1820E-05 S10 -1.8734E-01 1.9644E-02 -8.2812E-04 -2.4365E-03 1.2610E-04 -1.4687E-04 6.3631E-05 1.3865E-05 -3.8153E-05 S11 -1.2503E-02 -2.5740E-02 9.3266E-03 -5.8208E-04 4.4606E-04 2.2723E-04 -1.9480E-04 -6.9816E-06 -1.0152E-04 S12 -2.2949E-01 -4.0345E-02 9.3892E-03 -8.8145E-04 7.0822E-04 -4.6838E-05 -7.3818E-05 -1.1875E-05 -1.9548E-05 S13 -6.5088E-01 1.9460E-02 3.5823E-03 1.0843E-03 7.9857E-04 2.4608E-05 2.9739E-05 -1.5012E-05 2.4927E-06 S14 -4.5582E-01 4.9413E-02 2.5556E-04 4.7675E-04 4.2344E-04 -2.7959E-05 4.6330E-05 -6.4447E-06 8.2993E-06

[0198] Table 16

[0199] 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.

[0200] Example 9

[0201] The following reference Figures 17 to 18D An optical imaging lens according to Example 9 of the present application is described. Fig.17 A schematic structural diagram of an optical imaging lens according to Example 9 of the present application is shown.

[0202] like Fig.17 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0203] 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 convex, and its image side surface S8 is convex. 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 negative power, and its object side surface S11 is concave, and its image side surface S12 is concave. The seventh lens E7 has negative power, and its object side surface S13 is convex, 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.

[0204] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 21.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 17.1°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0205] Table 17 shows a basic parameter table of the optical imaging lens of Example 9, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0206]

[0207] Table 17

[0208] In Example 9, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. The following Table 18 lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 9.

[0209]

[0210]

[0211] Table 18

[0212] Fig.18A The axial chromatic aberration curve of the optical imaging lens of Example 9 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig.18B The astigmatism curve of the optical imaging lens of Example 9 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig.18C The distortion curve of the optical imaging lens of Example 9 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.18D The magnification chromatic aberration curve of the optical imaging lens of Example 9 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. 18A to 18D It can be seen that the optical imaging lens provided in Example 9 can achieve good imaging quality.

[0213] Example 10

[0214] The following reference Figures 19 to 20D An optical imaging lens according to Embodiment 10 of the present application is described. Fig.19 A schematic structural diagram of an optical imaging lens according to Embodiment 10 of the present application is shown.

[0215] like Fig.19 As shown, the optical imaging lens includes, in order from the object side to the image side along the optical axis: 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.

[0216] 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 negative 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 convex, and its image side surface S8 is convex. 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 negative power, and its object side surface S11 is concave, and its image side surface S12 is concave. The seventh lens E7 has negative power, and its object side surface S13 is convex, 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.

[0217] In this embodiment, the total effective focal length f of the optical imaging lens is 24.00 mm, the distance TTL on the optical axis from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 21.00 mm, half of the diagonal length of the effective pixel area on the imaging surface S17 is ImgH=3.65 mm, the maximum field of view FOV of the optical imaging lens is 17.1°, and the ratio of the total effective focal length f of the optical imaging lens to the entrance pupil diameter EPD of the optical imaging lens is f / EPD=3.50.

[0218] Table 19 shows a basic parameter table of the optical imaging lens of Example 10, wherein the units of the radius of curvature, thickness / distance and focal length are all millimeters (mm).

[0219]

[0220]

[0221] Table 19

[0222] In Example 10, the object side surface and the image side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. The following Table 20 lists the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspherical mirror surface S1-S14 in Example 10.

[0223] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.2358E-02 -6.3057E-03 1.5181E-04 -4.2829E-05 -5.9973E-05 2.6098E-05 -9.4915E-06 1.3084E-05 3.2704E-06 S2 1.3957E-01 -1.9919E-02 4.1114E-03 -9.3736E-04 -1.5542E-05 -2.4318E-04 -1.4311E-05 -1.3460E-04 -4.7335E-05 S3 -4.4031E-02 4.1358E-03 5.5487E-04 -4.7107E-04 2.2475E-04 -4.3546E-04 1.4475E-04 -1.9785E-04 -1.1167E-05 S4 -7.2503E-02 4.2778E-03 5.6363E-04 -3.7865E-04 1.1294E-04 -4.0899E-04 1.3999E-04 -1.4073E-04 1.8644E-05 S5 1.3908E-01 -1.9253E-02 5.4811E-03 -1.5932E-03 -9.4249E-05 -5.3439E-05 1.0846E-04 -7.8974E-05 6.0339E-06 S6 -1.7590E-02 1.1749E-02 -5.4548E-03 1.1005E-03 -6.7442E-04 6.3850E-04 -1.9443E-04 -2.5883E-05 -2.3361E-05 S7 -1.2958E-02 5.2090E-03 -2.1000E-03 1.6491E-03 -9.1366E-04 8.6337E-05 -2.9240E-04 4.9837E-05 -1.9696E-06 S8 5.3541E-02 -1.8113E-02 6.3725E-03 -1.5220E-03 -3.1042E-04 -4.6420E-04 -7.3979E-05 5.6348E-05 1.6787E-05 S9 -2.1414E-01 1.1374E-02 -3.2038E-03 -3.4558E-03 2.7273E-04 -4.1009E-04 1.0060E-05 3.5897E-05 1.1708E-05 S10 -1.9305E-01 1.7810E-02 -1.8320E-03 -2.9302E-03 4.2651E-04 -5.1727E-04 -4.7743E-05 2.5229E-05 9.9394E-06 S11 -1.1496E-02 -2.9115E-02 1.0094E-02 -5.7363E-04 -7.9438E-05 -2.0818E-04 -2.9601E-04 -5.6005E-05 -1.5790E-05 S12 -2.7428E-01 -4.7277E-02 9.2473E-03 5.0952E-04 3.0623E-04 2.7627E-04 -1.8387E-04 -2.5967E-05 -1.6133E-06 S13 -7.7876E-01 2.2542E-02 3.1867E-03 1.8994E-03 8.7194E-04 3.6349E-04 3.0001E-05 -7.1504E-06 9.5129E-07 S14 -5.4562E-01 6.0328E-02 -8.3993E-04 8.1720E-04 3.8181E-04 1.7050E-04 4.1236E-05 2.5347E-05 8.7115E-06

[0224] Table 20

[0225] Fig. 20A The axial chromatic aberration curve of the optical imaging lens of Example 10 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Fig. 20B The astigmatism curve of the optical imaging lens of Example 10 is shown, which represents the meridional image curvature and the sagittal image curvature. Fig. 20C The distortion curve of the optical imaging lens of Example 10 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.20D The magnification chromatic aberration curve of the optical imaging lens of Example 10 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 20A to FIG. 20D It can be seen that the optical imaging lens provided in Example 10 can achieve good imaging quality.

[0226] In summary, Examples 1 to 10 respectively satisfy the relationships shown in Table 21.

[0227]

[0228]

[0229] Table 21

[0230] 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 (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An optical imaging lens, characterized in that: Along the optical axis from the object side to the image side, they include: A first lens having positive optical power, whose object side surface is convex; A second lens having negative optical power, whose image side surface is concave; a third lens having optical power and having a convex object side surface; a fourth lens having optical power; a fifth lens element having positive refractive power and a convex image-side surface; a sixth lens element having negative optical power, whose object side surface is concave; and The seventh lens has negative power, wherein at most one of the third lens and the fourth lens has negative optical power; The optical imaging lens has seven lenses with optical power; The optical imaging lens meets the following requirements: 0.79≤TTL / f<0.9 and 0.5<T67 / T45≤0.60, Wherein, TTL is the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis, f is the total effective focal length of the optical imaging lens, T45 is the air spacing between the fourth lens and the fifth lens on the optical axis, and T67 is the air spacing between the sixth lens and the seventh lens on the optical axis.

2. The optical imaging lens according to claim 1, wherein: The distance BFL from the image side surface of the seventh lens to the imaging surface on the optical axis and the distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis satisfy: 0.45≤BFL / TTL≤0.

52.

3. The optical imaging lens according to claim 1, wherein: The effective focal length f1 of the first lens and the effective focal length f2 of the second lens satisfy: -0.72≤f1 / f2≤-0.

61.

4. The optical imaging lens according to claim 1, wherein: The effective focal length f5 of the fifth lens and the effective focal length f7 of the seventh lens satisfy: -1.18≤f5 / f7≤-0.

82.

5. The optical imaging lens according to claim 1, wherein: The effective focal length f6 of the sixth lens and the total effective focal length f of the optical imaging lens satisfy: -0.64≤f6 / f≤-0.

49.

6. The optical imaging lens according to claim 1, wherein: The curvature radius R1 of the object-side surface of the first lens, the curvature radius R4 of the image-side surface of the second lens, and the curvature radius R5 of the object-side surface of the third lens satisfy: 0.20≤R4 / (R1+R5)≤0.

73.

7. The optical imaging lens according to claim 1, wherein: The curvature radius R10 of the image side surface of the fifth lens and the curvature radius R11 of the object side surface of the sixth lens satisfy: 0.54≤R10 / (R10+R11)≤0.

80.

8. The optical imaging lens according to claim 1, wherein: 0.41≤SAG31 / (SAG31-SAG61)≤0.59, Among them, SAG31 is the on-axis distance from the intersection of the object side surface of the third lens and the optical axis to the vertex of the effective radius of the object side surface of the third lens, and SAG61 is the on-axis distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens.

9. The optical imaging lens according to any one of claims 1 to 8, characterized in that: -0.51≤f1234 / f56≤-0.27, Among them, f1234 is the combined focal length of the first lens, the second lens, the third lens and the fourth lens, and f56 is the combined focal length of the fifth lens and the sixth lens.

10. The optical imaging lens according to any one of claims 1 to 8, characterized in that: The edge thickness ET1 of the first lens, the edge thickness ET2 of the second lens, and the edge thickness ET3 of the third lens satisfy: 0.50≤ET2 / (ET1+ET3)≤0.

93.

11. The optical imaging lens according to any one of claims 1 to 8, characterized in that: The maximum effective radius DT12 of the image side surface of the first lens and the maximum effective radius DT61 of the object side surface of the sixth lens satisfy: 0.77≤DT61 / DT12≤0.

82.

12. The optical imaging lens according to any one of claims 1 to 8, characterized in that: The edge thickness ET7 of the seventh lens and the maximum effective radius DT72 of the image side surface of the seventh lens satisfy: 0.36≤ET7 / DT72≤0.

45.

13. The optical imaging lens according to any one of claims 1 to 8, characterized in that: The center thickness CT6 of the sixth lens on the optical axis and the edge thickness ET6 of the sixth lens satisfy: 0.65≤CT6 / ET6≤0.

90.

14. The optical imaging lens according to any one of claims 1 to 8, characterized in that: 0.96≤(CT1+CT2) / (CT3+CT4+CT5)≤1.30, Among them, 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, CT4 is the center thickness of the fourth lens on the optical axis, and CT5 is the center thickness of the fifth lens on the optical axis.

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