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 with positive optical power; a second lens with optical power; a third lens with negative optical power, whose object side surface is a concave surface; a fourth lens with optical power; a fifth lens with optical power, whose object side surface is a convex surface; and a sixth lens with optical power; a distance FFL from the center of the image side surface of the sixth lens to the imaging surface of the optical imaging lens satisfies: 7.5mm<FFL<10.0mm.

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] In recent years, with the rapid development of portable electronic products such as smart phones, major manufacturers have spared no effort to invest a lot of manpower and energy in product innovation in order to enhance the attractiveness of their products. Among them, the innovation of optical imaging lenses used in smart electronic devices is of utmost importance. Technologies such as high pixel, video camera, front dual camera, rear quad camera, TOF (time of flight) and under-screen optical imaging lens will become the development trend of optical imaging lenses in the future.

[0003] The development of multi-camera technology means that smartphones need to make more space for optical imaging lenses. At the same time, multi-camera technology also puts forward greater requirements for the ultra-thin characteristics of optical imaging lenses. As we all know, imaging height is one of the important main parameters of optical imaging lenses, which has a crucial impact on the resolution of optical imaging lenses. At present, the pixels of mobile phone optical imaging lenses have been continuously upgraded in rear-mounted photography, such as from 16M, 24M, 48M, 64M to 108M. The rear pixels are almost upgraded once a year, and the market requirements for the resolution of optical imaging lenses are also gradually increasing.

[0004] Therefore, how to make the optical imaging lens have both the space utilization of multiple cameras and the high pixel characteristics has become one of the difficult problems that many lens designers need to solve urgently. Summary of the invention

[0005] 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 positive optical power; a second lens with optical power; a third lens with negative optical power, whose object side surface is concave; a fourth lens with optical power; a fifth lens with optical power, whose object side surface is convex; and a sixth lens with optical power; a distance FFL from the center of the image side surface of the sixth lens to the imaging plane of the optical imaging lens can satisfy the following: 7.5mm<FFL<10.0mm.

[0006] 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 sixth lens.

[0007] In one embodiment, the total effective focal length f of the optical imaging lens and the effective focal length f3 of the third lens may satisfy: -2.0<f / f3<-1.0.

[0008] In one embodiment, the effective focal length f5 of the fifth lens and the curvature radius R10 of the image-side surface of the fifth lens may satisfy: -2.0<f5 / R10<-1.0.

[0009] In one embodiment, the effective focal length f6 of the sixth lens and the curvature radius R11 of the object-side surface of the sixth lens may satisfy: 1.5<f6 / R11<2.0.

[0010] In one embodiment, the effective focal length f1 of the first lens and the curvature radius R1 of the object-side surface of the first lens may satisfy: 2.0<f1 / R1<4.5.

[0011] In one embodiment, a curvature radius R2 of the image-side surface of the first lens and a curvature radius R3 of the object-side surface of the second lens may satisfy: 1.5<(R2+R3) / (R2-R3)<3.0.

[0012] In one embodiment, 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: -3.5<R5 / R4<-1.5.

[0013] In one embodiment, a curvature radius R7 of the object-side surface of the fourth lens and a curvature radius R8 of the image-side surface of the fourth lens may satisfy: 0.5<R7 / R8≤1.0.

[0014] In one embodiment, a center thickness CT3 of the third lens on the optical axis and a spacing distance T34 between the third lens and the fourth lens on the optical axis may satisfy: 6.0<T34 / CT3<12.5.

[0015] In one embodiment, the interval T12 between the first lens and the second lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, and the center thickness CT2 of the second lens on the optical axis may satisfy: 3.0<(CT1+CT2) / T12<10.0.

[0016] In one embodiment, a center thickness CT5 of the fifth lens on the optical axis, a center thickness CT6 of the sixth lens on the optical axis, and a spacing distance T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 2.0<(CT5+CT6) / T56<13.0.

[0017] In one embodiment, the sum of half the diagonal length ImgH of the effective pixel area on the imaging plane of the optical imaging lens and the center thickness of the first lens to the sixth lens on the optical axis ΣCT may satisfy: 1.0<ImgH / ΣCT<2.6.

[0018] In one embodiment, the refractive index of at least two lenses among the first lens to the sixth lens is greater than or equal to 1.60.

[0019] 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 positive optical power; a second lens with optical power; a third lens with negative optical power, whose object side surface is concave; a fourth lens with optical power; a fifth lens with optical power, whose object side surface is convex; and a sixth lens with optical power; a center thickness CT3 of the third lens on the optical axis and a spacing distance T34 between the third lens and the fourth lens on the optical axis can satisfy: 6.0<T34 / CT3<12.5.

[0020] In one embodiment, the total effective focal length f of the optical imaging lens and the effective focal length f3 of the third lens may satisfy: -2.0<f / f3<-1.0.

[0021] In one embodiment, the effective focal length f5 of the fifth lens and the curvature radius R10 of the image-side surface of the fifth lens may satisfy: -2.0<f5 / R10<-1.0.

[0022] In one embodiment, the effective focal length f6 of the sixth lens and the curvature radius R11 of the object-side surface of the sixth lens may satisfy: 1.5<f6 / R11<2.0.

[0023] In one embodiment, the effective focal length f1 of the first lens and the curvature radius R1 of the object-side surface of the first lens may satisfy: 2.0<f1 / R1<4.5.

[0024] In one embodiment, a curvature radius R2 of the image-side surface of the first lens and a curvature radius R3 of the object-side surface of the second lens may satisfy: 1.5<(R2+R3) / (R2-R3)<3.0.

[0025] In one embodiment, 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: -3.5<R5 / R4<-1.5.

[0026] In one embodiment, a curvature radius R7 of the object-side surface of the fourth lens and a curvature radius R8 of the image-side surface of the fourth lens may satisfy: 0.5<R7 / R8≤1.0.

[0027] In one embodiment, the interval T12 between the first lens and the second lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, and the center thickness CT2 of the second lens on the optical axis may satisfy: 3.0<(CT1+CT2) / T12<10.0.

[0028] In one embodiment, a center thickness CT5 of the fifth lens on the optical axis, a center thickness CT6 of the sixth lens on the optical axis, and a spacing distance T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 2.0<(CT5+CT6) / T56<13.0.

[0029] In one embodiment, the sum of half the diagonal length ImgH of the effective pixel area on the imaging plane of the optical imaging lens and the center thickness of the first lens to the sixth lens on the optical axis ΣCT may satisfy: 1.0<ImgH / ΣCT<2.6.

[0030] In one embodiment, the refractive index of at least two lenses among the first to sixth lenses may be greater than or equal to 1.60.

[0031] In one embodiment, a distance FFL from the center of the image-side surface of the sixth lens to the imaging surface of the optical imaging lens may satisfy: 7.5 mm < FFL < 10.0 mm.

[0032] The present application adopts multiple (for example, six) lenses, and through the reasonable allocation of the optical focal length, surface shape, center thickness of each lens and axial spacing between each lens, the above-mentioned optical imaging lens has at least one beneficial effect of high resolution, compact structure and high imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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:

[0034] Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown;

[0035] 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;

[0036] Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown;

[0037] 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;

[0038] Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown;

[0039] FIG. 6A to FIG. 6DThe axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical imaging lens of Example 3 are respectively shown;

[0040] Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0041] 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;

[0042] Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown;

[0043] 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;

[0044] Fig.11 A schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application is shown;

[0045] 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;

[0046] Fig.13 A schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application is shown;

[0047] 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;

[0048] Fig.15 shows a schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application; and

[0049] 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

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as those 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.

[0056] 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.

[0057] The features, principles and other aspects of the present application are described in detail below.

[0058] The optical imaging lens according to the exemplary embodiment of the present application may include six lenses with optical power, namely a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The six 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 sixth lens may have a spacing distance between them.

[0059] In an exemplary embodiment, the first lens may have positive optical power; the second lens may have positive optical power or negative optical power; the third lens may have negative optical power, and its object side surface may be concave; the fourth lens may have positive optical power or negative optical power; the fifth lens may have positive optical power or negative optical power, and its object side surface may be convex; and the sixth lens may have positive optical power or negative optical power.

[0060] In an exemplary embodiment, a first lens having positive optical power is matched with a second lens having optical power, which is beneficial for increasing the field of view angle, compressing the incident angle of light at the aperture position, reducing pupil aberration, and improving imaging quality. A third lens having negative optical power and a concave object side surface is beneficial for reducing system spherical aberration and astigmatism. A fourth lens having optical power can make the structure of the optical imaging lens compact, and can also make the optical imaging lens have good imaging quality and loose processing characteristics. A fifth lens having optical power and a convex object side surface is matched with a sixth lens having optical power, and the spherical aberration contribution of the fifth lens and the sixth lens can be reasonably controlled within a reasonable range, so that the on-axis field of view obtains good imaging quality.

[0061] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 7.5mm<FFL<10.0mm, where FFL is the distance from the center of the image side surface of the sixth lens to the imaging surface of the optical imaging lens. Satisfying 7.5mm<FFL<10.0mm can ensure that the system back focal length FFL is large, and the length of the optical imaging lens body can be reduced as much as possible while taking into account the resolution, thereby achieving a compact structure.

[0062] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -2.0<f / f3<-1.0, wherein f is the total effective focal length of the optical imaging lens, and f3 is the effective focal length of the third lens. More specifically, f and f3 may further satisfy: -1.7<f / f3<-1.1. Satisfying -2.0<f / f3<-1.0 can not only enable the third lens to bear the negative optical focal length required by the optical imaging lens, but also control the spherical aberration contributed by it within a reasonable range, thereby ensuring that the subsequent optical lens can reasonably correct the negative spherical aberration contributed by the third lens, and thus can better ensure the image quality of the on-axis field of view of the optical imaging lens.

[0063] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -2.0<f5 / R10<-1.0, wherein f5 is the effective focal length of the fifth lens, and R10 is the radius of curvature of the image side surface of the fifth lens. More specifically, f5 and R10 may further satisfy: -1.9<f5 / R10<-1.3. Satisfying -2.0<f5 / R10<-1.0 can effectively control the surface shape of the fifth lens to conform to the processing characteristics, and can also well balance the coma generated by the front end member to obtain good imaging quality.

[0064] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.5<f6 / R11<2.0, where f6 is the effective focal length of the sixth lens, and R11 is the radius of curvature of the object side of the sixth lens. Satisfying 1.5<f6 / R11<2.0 can effectively constrain the shape and thickness of the sixth lens, making the thickness of the sixth lens uniform and easy to form and process, and can well balance the amount of astigmatism and distortion generated by the front end member, thereby ensuring the image quality of the edge field of view.

[0065] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 2.0<f1 / R1<4.5, where f1 is the effective focal length of the first lens, and R1 is the radius of curvature of the object side of the first lens. More specifically, f1 and R1 may further satisfy: 2.3<f1 / R1<4.2. Satisfying 2.0<f1 / R1<4.5 can effectively control the aperture size of the first lens, so that the light transmittance of the optical imaging lens is within a reasonable range, and at the same time can ensure that the field of view of the system is within a reasonable range.

[0066] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.5<(R2+R3) / (R2-R3)<3.0, wherein R2 is the radius of curvature of the image side surface of the first lens, and R3 is the radius of curvature of the object side surface of the second lens. More specifically, R2 and R3 may further satisfy: 1.6<(R2+R3) / (R2-R3)<2.9. Satisfying 1.5<(R2+R3) / (R2-R3)<3.0 can not only well control the thickness ratio trend of the aspheric surfaces of the first lens and the second lens, but also control the spherical aberration contribution of the two lenses within a reasonable range, so that the image quality of the on-axis field of view and the off-axis field of view will not be significantly degraded due to the contribution of spherical aberration.

[0067] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -3.5<R5 / R4<-1.5, wherein R4 is the radius of curvature of the image side surface of the second lens, and R5 is the radius of curvature of the object side surface of the third lens. More specifically, R5 and R4 may further satisfy: -3.3<R5 / R4<-1.7. Satisfying -3.5<R5 / R4<-1.5 can well control the thickness ratio trend of the aspheric surface of the second lens, so that it falls within a range that is easy to process.

[0068] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5<R7 / R8≤1.0, wherein R7 is the radius of curvature of the object side surface of the fourth lens, and R8 is the radius of curvature of the image side surface of the fourth lens. More specifically, R7 and R8 may further satisfy: 0.8<R7 / R8≤1.0. Satisfying 0.5<R7 / R8≤1.0 can not only well control the thickness ratio trend of the aspheric surface of the fourth lens, but also control the coma and astigmatism contribution of the fourth lens within a reasonable range, thereby ensuring that the subsequent optical lens can reasonably correct the aberration contributed by the fourth lens, and thus can better ensure the image quality of the on-axis field of view of the optical imaging lens.

[0069] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 6.0<T34 / CT3<12.5, wherein CT3 is the center thickness of the third 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, T34 and CT3 may further satisfy: 6.3<T34 / CT3<12.3. Satisfying 6.0<T34 / CT3<12.5 can not only effectively constrain the shape of the third lens, but also reasonably control the range of the residual distortion after balancing, so that the optical imaging lens has good distortion characteristics.

[0070] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 3.0<(CT1+CT2) / T12<10.0, wherein T12 is the spacing distance between the first lens and the second lens on the optical axis, CT1 is the center thickness of the first lens on the optical axis, and CT2 is the center thickness of the second lens on the optical axis. More specifically, CT1, CT2, and T12 may further satisfy: 3.2<(CT1+CT2) / T12<9.8. Satisfying 3.0<(CT1+CT2) / T12<10.0 can effectively constrain the thickness and position of the first lens and the second lens, so that the thickness of the first lens and the second lens are uniform, the structural arrangement is uniform, and molding and assembly are facilitated.

[0071] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 2.0<(CT5+CT6) / T56<13.0, wherein 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 T56 is the spacing distance between the fifth lens and the sixth lens on the optical axis. Satisfying 2.0<(CT5+CT6) / T56<13.0 can effectively constrain the thickness and position of the fifth lens and the sixth lens, so that the thickness of the fifth lens and the sixth lens is uniform, the structure is uniformly arranged, and it is convenient for molding and assembly.

[0072] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 1.0<ImgH / ∑CT<2.6, wherein ImgH is half of the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens, and ∑CT is the sum of the center thicknesses of the first lens to the sixth lens on the optical axis. More specifically, ImgH and ∑CT may further satisfy: 1.5<ImgH / ∑CT<2.3. Satisfying 1.0<ImgH / ∑CT<2.6 can effectively control the compactness of the optical imaging lens structure.

[0073] In an exemplary embodiment, the refractive index of at least two lenses among the first to sixth lenses may be greater than or equal to 1.60. By controlling the refractive index of the two lenses to be greater than or equal to 1.60, the performance of the optical imaging lens can be effectively guaranteed.

[0074] 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.

[0075] The optical imaging lens according to the above-mentioned embodiment of the present application may use multiple lenses, such as the six lenses described above. By reasonably allocating the focal length, surface shape, center thickness of each lens, and the on-axis spacing between each lens, the volume of the optical imaging lens can be effectively reduced and the processability of the optical imaging lens can be improved, making the optical imaging lens more conducive to production and processing and applicable to portable electronic products. The optical imaging lens configured as above can have characteristics such as high resolution, compact structure, and good imaging quality.

[0076] 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 sixth 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 that occurs 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 and the sixth 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 and the sixth lens are all aspherical mirror surfaces.

[0077] This application proposes a pop-up optical imaging lens that is applicable to portable electronic products, has a six-piece structure, and is compact by reasonably allocating the optical focal length and optimizing the technical parameters of high-order aspheric surfaces. By lengthening the back focus, the length of the optical imaging lens body can be minimized while taking into account the resolution, thereby achieving the characteristics of a compact structure. At the same time, the length of the back focus is controlled by a motor pop-up, so that it can reasonably use the external space for focusing, that is, only the optical imaging lens body is included in the electronic product, and the distance from the image side of the sixth lens to the imaging surface of the optical imaging lens will be achieved by the motor driving the external space.

[0078] 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 six lenses are described as an example in the embodiments, the optical imaging lens is not limited to including six lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0079] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0080] Example 1

[0081] 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.

[0082] like Figure 1As 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 filter E7 and an imaging surface S15.

[0083] 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 positive focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has negative focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 concave. The filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0084] 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).

[0085]

[0086]

[0087] Table 1

[0088] In this example, the total effective focal length f of the optical imaging lens is 16.45 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 S15 of the optical imaging lens on the optical axis) is 17.95 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 28.3°, and the aperture value Fno of the optical imaging lens is 3.00.

[0089] In Example 1, the object side surface and the image side surface of any lens among the first lens E1 to the sixth lens E6 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:

[0090]

[0091] 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 gives 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, 10 , A 12 , A 14 , A 16 , A 18 and A 20 .

[0092] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 3.3707E-03 -1.0143E-03 -1.0213E-03 -1.6240E-04 -4.6557E-05 -4.2204E-06 -4.6035E-06 1.4338E-06 -2.7997E-07 S2 -1.7851E-01 1.3360E-02 -5.0727E-03 4.2876E-04 -1.4020E-04 1.9050E-05 -6.0840E-06 1.9724E-06 -2.9055E-07 S3 -5.0611E-01 -5.1038E-03 -6.3593E-03 -1.3156E-04 8.9019E-05 -6.6032E-06 -9.9366E-06 1.5025E-05 -2.9041E-06 S4 -2.7863E-01 -4.4675E-03 -1.6488E-03 -1.0646E-04 1.9894E-04 -1.2617E-04 -2.3992E-05 9.1998E-06 -1.7173E-07 S5 2.8909E-01 -3.4528E-02 6.3120E-03 -1.1500E-04 -3.7204E-04 -2.1266E-04 -4.0887E-05 1.8580E-06 -4.5223E-06 S6 4.0394E-01 -4.5539E-02 6.3446E-03 -2.1054E-04 -2.9285E-04 -5.9634E-05 2.3479E-05 9.0869E-06 -5.8815E-07 S7 9.3455E-01 -2.8130E-02 2.0981E-02 -1.5465E-02 7.1090E-03 4.1813E-03 2.9254E-03 5.3802E-04 3.0941E-04 S8 2.1473E-01 8.6389E-02 6.6190E-03 -2.7790E-02 -9.8756E-03 1.4643E-03 1.6395E-03 5.7042E-04 1.6753E-04 S9 -1.4325E+00 2.3983E-01 1.6559E-02 3.6022E-02 -3.5911E-02 5.3243E-03 4.8211E-04 9.5242E-04 -4.0500E-04 S10 2.6006E+00 -4.6423E-01 1.0098E-01 1.6077E-02 -3.1497E-02 4.0156E-03 -3.0015E-03 -3.3496E-03 6.5164E-04 S11 3.0135E+00 7.2763E-02 7.6813E-02 2.4216E-02 2.0913E-02 1.5190E-03 2.8505E-03 1.4920E-03 -8.2745E-05 S12 -2.1961E+00 2.1546E-01 -2.8715E-02 1.6613E-02 -4.1926E-03 -2.8114E-03 -2.2272E-03 -8.5230E-04 -2.8907E-04

[0093] Table 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 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.

[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 filter E7 and an imaging surface S15.

[0098] 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 positive focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, 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 convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0099] In this example, the total effective focal length f of the optical imaging lens is 15.94 mm, the total length TTL of the optical imaging lens is 17.74 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 28.5°, and the aperture value Fno of the optical imaging lens is 3.80.

[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). Table 4 shows 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 A18 A20 S1 7.3385E-02 8.2902E-03 2.0755E-02 7.1913E-03 -3.3659E-03 -1.9079E-03 8.6812E-04 9.3752E-04 2.3111E-04 S2 -1.6820E-01 -4.8590E-04 -3.5941E-03 5.7246E-04 1.6665E-04 1.2380E-04 4.2052E-05 1.4418E-05 3.3174E-06 S3 -3.4832E-01 -2.3002E-02 -6.6390E-03 1.1483E-04 4.0997E-04 2.2787E-04 7.5703E-05 1.1097E-05 -4.0037E-06 S4 -2.5454E-01 -3.1895E-02 -6.6825E-03 3.1322E-03 3.3592E-03 1.6141E-03 4.2572E-04 -1.6595E-05 -4.0849E-05 S5 2.4048E-01 -7.1027E-03 6.4941E-03 -6.4988E-05 -9.0717E-05 -1.7613E-05 6.0203E-05 4.2582E-05 7.7646E-06 S6 2.3276E-01 -2.9379E-02 3.9710E-03 -1.7855E-04 -1.0505E-05 -2.3036E-05 8.4115E-06 8.7515E-06 -3.5791E-06 S7 5.6818E-01 -7.1707E-03 1.1867E-02 -5.8472E-03 1.4031E-03 -9.2142E-04 5.0044E-04 -2.3018E-04 3.4199E-05 S8 2.3860E-02 9.5959E-02 7.1795E-03 -3.0812E-03 -2.7016E-03 -9.6858E-04 4.9650E-04 -2.6213E-04 -3.8002E-05 S9 -1.0927E+00 1.0896E-01 -3.3300E-02 4.1800E-02 -1.3406E-02 2.9868E-03 -1.7548E-03 4.5841E-04 -2.2884E-05 S10 1.9437E+00 -3.0283E-01 4.5819E-02 1.3171E-02 -6.3191E-04 -1.4442E-03 -4.7457E-04 1.9152E-04 -2.4635E-05 S11 2.2184E+00 2.5287E-02 4.8469E-02 -8.1173E-03 1.5827E-02 -3.0840E-03 -5.9053E-04 9.5479E-04 -1.2741E-04 S12 -3.4714E+00 4.6587E-01 -6.1676E-02 -2.1585E-02 -2.8423E-02 6.0560E-03 1.6343E-02 6.7799E-03 1.0299E-03

[0104] Table 4

[0105] 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.

[0106] Example 3

[0107] 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.

[0108] 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 filter E7 and an imaging surface S15.

[0109] 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 positive focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0110] In this example, the total effective focal length f of the optical imaging lens is 17.01 mm, the total length TTL of the optical imaging lens is 18.35 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 27.6°, and the aperture value Fno of the optical imaging lens is 3.90.

[0111] 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). Table 6 shows 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.

[0112]

[0113] Table 5

[0114] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.5794E-02 5.3059E-04 -1.4600E-04 -2.0776E-05 -6.8800E-06 7.3415E-07 -8.0948E-07 9.2024E-07 -4.0412E-07 S2 -1.1620E-01 4.4615E-03 -2.2450E-03 1.7639E-04 -6.5308E-06 1.0769E-05 3.7052E-06 1.8299E-06 -3.4368E-07 S3 -2.9323E-01 -1.2280E-02 -5.1447E-03 -1.2350E-04 2.0668E-04 1.1615E-04 4.5105E-05 1.4252E-05 -1.6715E-06 S4 -1.3289E-01 -1.0708E-02 -5.0704E-03 -1.4149E-03 -5.5780E-05 8.2398E-05 6.5605E-05 2.0235E-05 -6.4682E-06 S5 2.5783E-01 -1.7768E-03 6.4498E-03 -1.1457E-03 -2.3734E-04 -2.4710E-05 7.4490E-05 4.3696E-05 7.8839E-06 S6 2.8731E-01 -3.4961E-02 6.4290E-03 -1.1199E-03 2.6447E-05 -4.7833E-05 -3.1903E-06 -1.4911E-05 -1.1184E-05 S7 8.9607E-01 2.1350E-02 1.9655E-02 1.4419E-03 1.2185E-02 6.0067E-03 3.1028E-03 4.4439E-04 3.0505E-04 S8 2.8713E-01 1.5257E-01 1.0189E-02 -3.0940E-03 6.0055E-03 6.9509E-03 3.3701E-03 3.3470E-04 4.6449E-05 S9 -1.0421E+00 1.4682E-01 6.4480E-03 4.3687E-02 -2.0596E-02 2.9951E-04 -1.9938E-03 8.8048E-04 2.2071E-04 S10 1.7114E+00 -2.7607E-01 2.9394E-02 1.0051E-02 -8.7433E-04 -1.5174E-03 -8.5013E-04 5.5330E-05 -6.8593E-05 S11 2.2160E+00 1.1557E-02 4.6946E-02 -1.1983E-02 1.3204E-02 -2.9327E-03 -4.7625E-04 7.7467E-04 -1.4363E-04 S12 -2.0610E+00 1.8804E-01 -1.0274E-02 1.6748E-02 -1.3137E-04 -3.3418E-04 -8.5550E-04 -1.9644E-04 -8.1094E-05

[0115] Table 6

[0116] Fig. 6AThe 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.

[0117] Example 4

[0118] 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.

[0119] 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 filter E7 and an imaging surface S15.

[0120] 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 positive focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has positive focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0121] In this example, the total effective focal length f of the optical imaging lens is 16.99 mm, the total length TTL of the optical imaging lens is 18.39 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 27.9°, and the aperture value Fno of the optical imaging lens is 3.90.

[0122] 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). Table 8 shows 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.

[0123]

[0124] Table 7

[0125] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.5927E-02 8.3912E-04 -1.2004E-04 -1.4297E-05 -6.2905E-06 1.3999E-06 8.9073E-08 7.3563E-07 -8.0479E-07 S2 -1.1594E-01 6.2129E-03 -2.2961E-03 1.7670E-04 -9.8581E-06 1.4074E-05 5.3046E-06 2.2276E-06 -4.0695E-08 S3 -2.9462E-01 -9.9402E-03 -4.8697E-03 -2.1818E-04 1.4988E-04 1.0571E-04 4.5633E-05 1.5483E-05 -6.2064E-07 S4 -1.3178E-01 -1.1772E-02 -4.8032E-03 -1.4106E-03 -6.6372E-05 7.1573E-05 5.2110E-05 1.0257E-05 -1.1037E-05 S5 2.6362E-01 -7.1984E-04 7.1645E-03 -3.4982E-04 -5.0584E-05 7.5553E-06 6.8417E-05 4.2287E-05 7.3905E-06 S6 2.9015E-01 -3.2942E-02 6.3982E-03 -8.1865E-04 -2.7380E-05 -7.4775E-05 -1.4627E-05 -1.6284E-05 -1.3784E-05 S7 9.0042E-01 2.4799E-02 1.7847E-02 1.9530E-04 1.2987E-02 6.2842E-03 2.5263E-03 5.9348E-04 2.6132E-04 S8 3.0601E-01 1.4479E-01 1.5558E-02 -5.7641E-03 7.5964E-03 7.5629E-03 2.8279E-03 2.8912E-04 5.3039E-05 S9 -1.0364E+00 1.3706E-01 2.2606E-02 3.9119E-02 -1.6597E-02 -6.9321E-04 -1.1622E-03 7.6108E-04 2.5655E-04 S10 1.7112E+00 -2.7032E-01 2.5981E-02 1.0076E-02 -1.8514E-03 -2.0923E-03 -5.6344E-04 1.1180E-04 -5.6294E-05 S11 2.2336E+00 1.0431E-02 4.6445E-02 -1.2162E-02 1.3041E-02 -2.5966E-03 -3.3072E-04 6.8275E-04 -1.2184E-04 S12 -2.0493E+00 1.6256E-01 -3.0481E-03 1.2882E-02 1.0976E-03 -7.8259E-04 -6.1604E-04 -2.1220E-04 -3.3969E-05

[0126] Table 8

[0127] 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.

[0128] Example 5

[0129] 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.

[0130] 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 filter E7 and an imaging surface S15.

[0131] 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 negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has negative focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0132] In this example, the total effective focal length f of the optical imaging lens is 16.15 mm, the total length TTL of the optical imaging lens is 17.84 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 28.2°, and the aperture value Fno of the optical imaging lens is 4.00.

[0133] 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). Table 10 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 5, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0134]

[0135] Table 9

[0136] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.2706E-02 -6.6120E-04 -3.5558E-04 -5.3571E-05 -1.4032E-05 9.9294E-07 -8.0247E-07 1.0012E-06 -5.3296E-07 S2 -9.0063E-02 -2.4706E-03 -2.0257E-03 1.2200E-04 -8.1470E-07 2.6829E-05 1.1711E-06 7.4541E-07 7.5749E-07 S3 -3.2630E-01 -1.4111E-02 -5.6562E-03 6.6192E-04 4.3068E-04 2.5536E-04 6.0270E-05 -7.4916E-06 -4.3340E-06 S4 -2.3234E-01 -3.4446E-03 -7.0334E-03 -2.0417E-04 -4.2411E-05 3.7188E-04 2.1498E-04 3.5218E-05 6.8979E-06 S5 2.4227E-01 -2.8690E-02 6.4187E-03 -2.6968E-03 -1.1278E-03 3.0702E-04 3.5233E-04 1.0570E-04 2.8484E-05 S6 3.2285E-01 -4.9128E-02 1.2061E-02 -1.8176E-03 -5.3807E-04 2.2360E-04 6.6184E-05 -3.1863E-06 1.7776E-05 S7 5.1859E-01 -1.3580E-02 1.5117E-02 -6.3778E-03 1.2155E-03 -1.3387E-03 6.2797E-04 -2.6789E-04 4.1068E-05 S8 -2.5432E-02 6.5346E-02 1.1844E-02 -9.3293E-04 -1.7673E-03 -1.5589E-03 4.9115E-04 -1.1178E-04 -1.7648E-05 S9 -1.1297E+00 1.2380E-01 -2.9235E-02 4.3762E-02 -1.4870E-02 2.9646E-03 -1.8928E-03 4.9289E-04 -9.8944E-07 S10 2.0514E+00 -3.3108E-01 5.6733E-02 1.3917E-02 -1.9898E-03 -2.2631E-03 -4.5609E-04 1.3572E-04 1.4847E-05 S11 2.2286E+00 1.7943E-02 4.6424E-02 -9.5737E-03 1.6770E-02 -4.0016E-03 -7.0291E-04 1.0177E-03 -1.4515E-04 S12 -1.6816E+00 1.3088E-01 -1.6246E-02 5.4242E-03 3.4777E-03 -2.3484E-04 -4.0288E-04 -1.2727E-04 -5.3159E-05

[0137] Table 10

[0138] 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.

[0139] Example 6

[0140] 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.

[0141] 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 filter E7 and an imaging surface S15.

[0142] 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 negative focal power, and its object side surface S5 is concave, 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 convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0143] In this example, the total effective focal length f of the optical imaging lens is 15.99 mm, the total length TTL of the optical imaging lens is 17.56 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 29.1°, and the aperture value Fno of the optical imaging lens is 4.00.

[0144] 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). Table 12 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 6, wherein the surface type of each aspherical surface can be defined by the formula (1) given in the above Example 1.

[0145]

[0146]

[0147] Table 11

[0148] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.2433E-02 -1.0825E-03 -5.6095E-04 -1.0018E-04 -2.1776E-05 1.3418E-06 1.3774E-07 1.5833E-06 -4.0834E-07 S2 -9.3222E-02 -3.2288E-03 -2.2514E-03 6.5234E-05 1.6042E-05 3.1541E-05 6.1526E-06 4.8816E-07 -3.2249E-07 S3 -3.2647E-01 -1.1106E-02 -5.6118E-03 8.1342E-04 6.4225E-04 3.3223E-04 9.9569E-05 3.2372E-06 -2.9890E-06 S4 -2.2902E-01 -2.3200E-03 -9.1113E-03 -1.5146E-03 -4.1620E-04 1.6671E-04 1.3891E-04 7.7766E-06 -5.1446E-06 S5 2.6926E-01 -1.4394E-02 7.9164E-03 -1.4716E-03 -1.1460E-03 -1.3005E-04 1.3693E-04 5.4209E-05 1.2841E-05 S6 3.1434E-01 -4.8507E-02 1.1996E-02 -1.3661E-03 -3.6461E-04 2.7312E-04 8.9501E-05 -2.0864E-05 1.3377E-06 S7 5.2119E-01 -1.8849E-02 1.0767E-02 -4.3396E-03 6.2301E-04 -2.0023E-03 3.6760E-04 -1.6697E-04 -5.0475E-06 S8 -2.3086E-02 7.3645E-02 7.8152E-03 2.0435E-03 -2.1601E-03 -2.1430E-03 -9.3982E-07 -4.6553E-05 2.2361E-06 S9 -1.1089E+00 1.2741E-01 -3.2781E-02 4.5496E-02 -1.5777E-02 4.2108E-03 -1.1549E-03 9.0637E-04 1.7881E-04 S10 2.0302E+00 -3.3707E-01 5.3642E-02 1.8449E-02 1.5062E-04 -1.8905E-03 1.6503E-03 2.7164E-04 8.0971E-04 S11 2.2182E+00 2.2987E-02 4.8538E-02 -7.4553E-03 1.7306E-02 -2.2358E-03 -1.1471E-04 4.3146E-04 3.3624E-04 S12 -1.6262E+00 1.3233E-01 -2.3499E-02 -2.5537E-04 3.9608E-03 3.6000E-04 1.3440E-04 -1.6608E-04 -3.1429E-05

[0149] Table 12

[0150] 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.

[0151] Example 7

[0152] 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.

[0153] 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 filter E7 and an imaging surface S15.

[0154] 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 negative focal power, and its object side surface S5 is concave, and its image side surface S6 is convex. The fourth lens E4 has positive focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0155] In this example, the total effective focal length f of the optical imaging lens is 16.81 mm, the total length TTL of the optical imaging lens is 18.08 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 28.5°, and the aperture value Fno of the optical imaging lens is 4.00.

[0156] 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). Table 14 shows 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.

[0157]

[0158] Table 13

[0159] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.2763E-02 2.8080E-05 -2.6032E-04 -4.5132E-05 -1.2807E-05 5.9284E-08 -1.2853E-06 6.1828E-07 -2.2018E-07 S2 -8.8160E-02 2.6813E-04 -2.1899E-03 5.1816E-05 -9.5640E-06 2.0433E-05 6.5209E-06 8.2702E-07 -1.6984E-06 S3 -3.0022E-01 -5.1717E-03 -5.8014E-03 2.0813E-04 3.4483E-04 1.9001E-04 6.9021E-05 5.7883E-06 -4.7935E-06 S4 -1.9748E-01 -1.0885E-03 -8.4573E-03 -1.8382E-03 -5.2666E-04 -1.9588E-05 5.8379E-05 4.2345E-08 -1.0535E-05 S5 2.7448E-01 -1.2675E-02 8.5824E-03 -1.8552E-03 -8.0469E-04 -1.7722E-04 7.8697E-05 4.1655E-05 7.1688E-06 S6 2.8344E-01 -3.9683E-02 1.1203E-02 -1.2748E-03 -1.9353E-05 7.0198E-05 6.4998E-05 -1.0192E-06 -2.6008E-06 S7 3.8530E-01 -1.9655E-02 8.6348E-03 -1.9985E-03 2.1580E-03 -7.6523E-04 4.2562E-04 1.1072E-05 4.9740E-05 S8 6.2929E-03 4.9657E-02 1.0413E-02 1.4995E-03 4.5181E-04 -8.8423E-04 7.2222E-05 -1.7930E-05 1.5919E-05 S9 -7.6827E-01 8.3499E-02 -3.3249E-02 3.0350E-02 -9.0206E-03 2.1143E-03 -1.0860E-03 2.6729E-04 5.1878E-05 S10 1.6449E+00 -2.4752E-01 2.9698E-03 1.1168E-02 -7.7586E-05 -1.0061E-03 -7.3280E-05 3.1302E-04 1.4373E-04 S11 2.0854E+00 8.8174E-03 4.1649E-02 -1.0930E-02 1.5320E-02 -2.6054E-03 1.5283E-04 5.1459E-04 6.1210E-05 S12 -1.6422E+00 1.1212E-01 -9.4687E-03 4.2748E-03 3.1266E-03 2.2183E-04 3.9968E-04 3.2023E-05 6.3497E-05

[0160] Table 14

[0161] 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.

[0162] Example 8

[0163] 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.

[0164] 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 filter E7 and an imaging surface S15.

[0165] 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 negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has positive focal power, and its object side surface S9 is convex, 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 filter E7 has an object side surface S13 and an image side surface S14. The light from the object passes through each surface S1 to S14 in sequence and is finally imaged on the imaging surface S15.

[0166] In this example, the total effective focal length f of the optical imaging lens is 16.17 mm, the total length TTL of the optical imaging lens is 17.76 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens is 9.05 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 28.1°, and the aperture value Fno of the optical imaging lens is 4.00.

[0167] 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). Table 16 shows 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.

[0168]

[0169]

[0170] Table 15

[0171] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.5254E-02 4.5732E-04 -6.7108E-05 -2.6168E-06 -6.8759E-06 3.0803E-06 -1.7344E-06 1.6822E-06 -8.0427E-07 S2 -9.1056E-02 8.5748E-04 -3.0147E-03 5.0322E-04 -3.2544E-05 1.0082E-05 -1.8909E-05 -6.5612E-06 -2.6875E-06 S3 -3.0113E-01 -1.3492E-02 -6.6540E-03 1.1672E-03 2.9281E-04 8.2041E-06 -6.8110E-05 -3.4614E-05 -9.3959E-06 S4 -1.9725E-01 -6.5354E-03 -6.5079E-03 -8.9717E-04 -5.8678E-04 -3.5663E-04 -1.0786E-04 -1.7450E-05 -5.0119E-06 S5 2.5606E-01 -1.4888E-02 4.1900E-03 -3.3922E-03 -7.7120E-04 -1.0749E-04 1.1050E-04 6.6003E-05 1.0291E-05 S6 2.9846E-01 -3.3898E-02 7.6300E-03 -1.2312E-03 1.8344E-04 1.2475E-04 1.0480E-04 3.5604E-05 -2.7622E-06 S7 4.0893E-01 -7.6329E-03 9.9436E-03 -2.5730E-03 1.0255E-03 -4.3129E-04 2.8116E-04 7.3807E-05 1.4684E-05 S8 2.2554E-02 3.9847E-02 1.0450E-02 1.0014E-03 -1.1970E-04 -4.7420E-04 9.6040E-05 8.1407E-05 4.8196E-05 S9 -7.6803E-01 8.3161E-02 -3.3897E-02 3.0906E-02 -9.0849E-03 2.2820E-03 -1.1701E-03 1.9465E-04 2.6995E-05 S10 1.6544E+00 -2.4480E-01 1.3369E-03 1.1311E-02 1.1244E-04 -1.1641E-03 -4.0456E-04 -6.4458E-05 1.7378E-04 S11 1.9790E+00 1.0076E-02 4.3748E-02 -1.2035E-02 1.4980E-02 -3.1588E-03 -5.0056E-05 3.4699E-04 1.9354E-04 S12 -1.6344E+00 1.1725E-01 -1.3428E-02 3.7682E-03 2.1957E-03 1.1006E-05 1.7836E-04 -6.1910E-05 9.4960E-06

[0172] Table 16

[0173] 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. 16DIt can be seen that the optical imaging lens provided in Example 8 can achieve good imaging quality.

[0174] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 17.

[0175] Conditional / Example 1 2 3 4 5 6 7 8 f / f3 -1.13 -1.42 -1.68 -1.58 -1.51 -1.37 -1.49 -1.48 ImgH / ∑CT 2.11 1.78 1.57 1.52 1.98 2.19 2.05 1.58 f5 / R10 -1.44 -1.41 -1.79 -1.77 -1.42 -1.43 -1.67 -1.68 f6 / R11 1.54 1.99 1.99 1.99 1.98 1.98 1.98 1.99 f1 / R1 3.84 4.00 3.82 4.14 2.38 2.57 2.57 2.46 (R2+R3) / (R2-R3) 2.14 2.64 2.68 2.82 1.66 1.92 1.96 1.83 R5 / R4 -3.25 -1.88 -1.82 -1.78 -2.46 -1.89 -1.85 -2.07 R7 / R8 0.83 0.83 1.00 0.99 0.86 0.86 0.96 0.96 T34 / CT3 6.41 11.43 8.55 8.82 12.27 11.40 10.33 11.40 (CT1+CT2) / T12 3.28 5.38 6.86 6.76 4.00 3.34 3.77 9.74 (CT5+CT6) / T56 4.84 4.38 11.44 12.84 3.19 2.21 3.56 7.55 FFL(mm) 9.62 8.16 8.26 8.09 8.56 8.60 9.04 7.64

[0176] Table 17

[0177] 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.

[0178] 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: The first lens has positive refractive power, and its object side surface is convex and its image side surface is concave; a second lens having optical power, wherein the object side surface is convex and the image side surface is concave; The third lens has a negative optical power, the object side surface of which is concave, and the image side surface of which is convex or concave; a fourth lens having optical power, whose object side surface is concave and whose image side surface is convex; a fifth lens element having positive refractive power, whose object-side surface is convex and whose image-side surface is convex; and a sixth lens having negative optical power, whose object side surface is concave and whose image side surface is convex or concave; The number of lenses having optical power in the optical imaging lens is six; and A center thickness CT3 of the third lens on the optical axis and a spacing distance T34 between the third lens and the fourth lens on the optical axis satisfy: 6.41≤T34 / CT3≤12.

27.

2. The optical imaging lens according to claim 1, wherein: The total effective focal length f of the optical imaging lens and the effective focal length f3 of the third lens satisfy: -1.68≤f / f3≤-1.

13.

3. The optical imaging lens according to claim 1, wherein: An effective focal length f5 of the fifth lens and a curvature radius R10 of the image-side surface of the fifth lens satisfy: -1.79≤f5 / R10≤-1.

41.

4. The optical imaging lens according to claim 1, wherein: An effective focal length f6 of the sixth lens and a curvature radius R11 of the object-side surface of the sixth lens satisfy: 1.54≤f6 / R11≤1.

99.

5. The optical imaging lens according to claim 1, wherein: The effective focal length f1 of the first lens and the curvature radius R1 of the object-side surface of the first lens satisfy: 2.38≤f1 / R1≤4.

14.

6. The optical imaging lens according to claim 1, wherein: A curvature radius R2 of the image-side surface of the first lens and a curvature radius R3 of the object-side surface of the second lens satisfy: 1.66≤(R2+R3) / (R2-R3)≤2.

82.

7. The optical imaging lens according to claim 1, wherein: 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 satisfy: -3.25≤R5 / R4≤-1.

78.

8. The optical imaging lens according to claim 1, wherein: A curvature radius R7 of the object-side surface of the fourth lens and a curvature radius R8 of the image-side surface of the fourth lens satisfy: 0.83≤R7 / R8≤1.

00.

9. The optical imaging lens according to claim 1, wherein: The interval distance T12 between the first lens and the second lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, and the center thickness CT2 of the second lens on the optical axis satisfy: 3.28≤(CT1+CT2) / T12≤9.

74.

10. The optical imaging lens according to claim 1, wherein: A center thickness CT5 of the fifth lens on the optical axis, a center thickness CT6 of the sixth lens on the optical axis, and a spacing T56 between the fifth lens and the sixth lens on the optical axis satisfy: 2.21≤(CT5+CT6) / T56≤12.

84.

11. The optical imaging lens according to any one of claims 1 to 10, characterized in that: A half of the diagonal length ImgH of the effective pixel area on the imaging plane of the optical imaging lens and a sum ΣCT of the center thicknesses of the first lens to the sixth lens on the optical axis satisfy: 1.52≤ImgH / ΣCT≤2.

19.

12. The optical imaging lens according to any one of claims 1 to 10, characterized in that: The refractive index of at least two lenses among the first lens to the sixth lens is greater than or equal to 1.

60.

13. The optical imaging lens according to any one of claims 1 to 10, wherein: A distance FFL from the center of the image-side surface of the sixth lens to the imaging surface of the optical imaging lens satisfies: 7.64 mm≤FFL≤9.62 mm.

Images