Optical imaging lens

Abstract

The present application relates to an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with optical power; a second lens with optical power; a third lens with positive optical power; a fourth lens with optical power; and a fifth lens with optical power, whose object side surface is convex and image side surface is concave. The maximum field of view FOV of the optical imaging lens satisfies: FOV>90°; 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 and the half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH satisfy: TTL / ImgH<1.4; and the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy: 1.0<|f2 / f4|<2.5.

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 science and technology, portable electronic products, especially portable electronic products with camera functions, have become more and more popular. Among them, the optical imaging lens and photosensitive element of the optical system play a vital role. The photosensitive element of a general optical system is nothing more than a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), and both photosensitive elements are made by semiconductor process technology. With the continuous improvement of semiconductor process technology, the pixel size of the photosensitive element made therefrom continues to shrink, so correspondingly, the size of the optical imaging lens of the optical system also needs to be smaller and smaller, so as to realize the miniaturization of the optical system. In addition, the imaging quality of the optical imaging lens also needs to be continuously improved to match the photosensitive element.

[0003] As portable electronic products are becoming thinner and lighter, traditional optical systems have been unable to meet the requirements of high specifications and miniaturization at the same time. Therefore, in order to meet people's demand for higher quality optical systems, it is urgent to design an optical imaging lens that has the advantages of good imaging performance, a large field of view, and miniaturization. Summary of the invention

[0004] On the one 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 positive optical power; a fourth lens with optical power; and a fifth lens with optical power, whose object-side surface is convex and whose image-side surface is concave; wherein the maximum field of view FOV of the optical imaging lens may satisfy FOV>90°; the distance TTL from the object-side surface of the first lens to the imaging plane of the optical imaging lens on the optical axis and the half of the diagonal length of the effective pixel area on the imaging plane of the optical imaging lens ImgH may satisfy TTL / ImgH<1.4; and the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens may satisfy 1.0<|f2 / f4|<2.5.

[0005] In some embodiments, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy: 2.0 <f3 / f4<3.5。

[0006] In some embodiments, the combined focal length f12 of the first lens and the second lens and the total effective focal length f of the optical imaging lens may satisfy: 3.0≤f12 / f<4.5.

[0007] In some embodiments, the combined focal length f12 of the first lens and the second lens and the combined focal length f123 of the first lens, the second lens, and the third lens may satisfy: 2.0 <f12 / f123<3.0。

[0008] In some embodiments, a distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens on the optical axis, a distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens on the optical axis, and a center thickness CT4 of the fourth lens on the optical axis may satisfy: 1.0<|(SAG41+SAG42) / CT4|<1.55.

[0009] In some embodiments, the total effective focal length f of the optical imaging lens and the curvature radius R10 of the image side surface of the fifth lens may satisfy: 4.0 <f / R10<6.0。

[0010] In some embodiments, the effective focal length f1 of the first lens and the effective focal length f4 of the fourth lens may satisfy: 1.0 <f1 / f4<2.0。

[0011] In some embodiments, the sum ΣCT of the center thicknesses of the first to fifth lenses on the optical axis, the spacing distance T12 between the first lens and the second lens on the optical axis, and the spacing distance T23 between the second lens and the third lens on the optical axis may satisfy: 7.0<ΣCT / (T12+T23)<9.5.

[0012] In some embodiments, the sum of the thicknesses SETP of the first to fifth lenses at the edge of the entrance pupil and in a direction parallel to the optical axis and the sum of the air intervals ΣAT of any two adjacent lenses of the first to fifth lenses on the optical axis may satisfy: 2.5 <SETP / ∑AT<3.0。

[0013] In some embodiments, the maximum half field of view angle Semi-FOV of the optical imaging lens, the maximum effective radius DT11 of the object side of the first lens, and the maximum effective radius DT21 of the object side of the second lens may satisfy: 2.0 <tan(Semi-FOV) / DT11+tan(Semi-FOV) / DT21<4.0。

[0014] In some embodiments, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens, the maximum effective radius DT22 of the image side surface of the second lens, and the maximum effective radius DT32 of the image side surface of the third lens may satisfy: 6.0 <ImgH / DT22+ImgH / DT32<7.5。

[0015] 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 positive optical power; a fourth lens with optical power; a fifth lens with optical power, whose object side surface is convex and whose image side surface is concave; wherein 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 and half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens ImgH may satisfy TTL / ImgH<1.4; and the maximum half field of view Semi-FOV of the optical imaging lens, the maximum effective radius DT11 of the object side surface of the first lens and the maximum effective radius DT21 of the object side surface of the second lens may satisfy: 2.0 <tan(Semi-FOV) / DT11+tan(Semi-FOV) / DT21<4.0。

[0016] In some embodiments, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy: 2.0 <f3 / f4<3.5。

[0017] In some embodiments, the maximum field of view FOV of the optical imaging lens may satisfy FOV>90°.

[0018] In some embodiments, the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens may satisfy 1.0<|f2 / f4|<2.5.

[0019] In some embodiments, the combined focal length f12 of the first lens and the second lens and the total effective focal length f of the optical imaging lens may satisfy: 3.0≤f12 / f<4.5.

[0020] In some embodiments, the combined focal length f12 of the first lens and the second lens and the combined focal length f123 of the first lens, the second lens, and the third lens may satisfy: 2.0 <f12 / f123<3.0。

[0021] In some embodiments, a distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens on the optical axis, a distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens on the optical axis, and a center thickness CT4 of the fourth lens on the optical axis may satisfy: 1.0<|(SAG41+SAG42) / CT4|<1.55.

[0022] In some embodiments, the total effective focal length f of the optical imaging lens and the curvature radius R10 of the image side surface of the fifth lens may satisfy: 4.0 <f / R10<6.0。

[0023] In some embodiments, the effective focal length f1 of the first lens and the effective focal length f4 of the fourth lens may satisfy: 1.0 <f1 / f4<2.0。

[0024] In some embodiments, the sum ΣCT of the center thicknesses of the first to fifth lenses on the optical axis, the spacing distance T12 between the first lens and the second lens on the optical axis, and the spacing distance T23 between the second lens and the third lens on the optical axis may satisfy: 7.0<ΣCT / (T12+T23)<9.5.

[0025] In some embodiments, the sum of the thicknesses SETP of the first to fifth lenses at the edge of the entrance pupil and in a direction parallel to the optical axis and the sum of the air intervals ΣAT of any two adjacent lenses of the first to fifth lenses on the optical axis may satisfy: 2.5 <SETP / ∑AT<3.0。

[0026] In some embodiments, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens, the maximum effective radius DT22 of the image side surface of the second lens, and the maximum effective radius DT32 of the image side surface of the third lens may satisfy: 6.0 <ImgH / DT22+ImgH / DT32<7.5。

[0027] On the other hand, the present application provides an electronic device, including the optical lens provided according to the present application and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

[0028] The present application adopts five lenses, and by reasonably allocating the optical focal length and surface shape of each lens, and controlling the overall optical length and image height of the optical imaging lens, the above-mentioned optical imaging lens can have at least one beneficial effect of ultra-thinness, miniaturization, large field of view and high imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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:

[0030] Figure 1 A schematic structural diagram of a camera lens assembly according to Embodiment 1 of the present application is shown;

[0031] FIG. 2A to FIG. 2D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 1 are respectively shown;

[0032] Figure 3 A schematic structural diagram of a camera lens assembly according to Embodiment 2 of the present application is shown;

[0033] 4A to 4DThe axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 2 are respectively shown;

[0034] Figure 5 A schematic structural diagram of a camera lens assembly according to Embodiment 3 of the present application is shown;

[0035] FIG. 6A to FIG. 6D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 3 are respectively shown;

[0036] Figure 7 A schematic structural diagram of a camera lens assembly according to Embodiment 4 of the present application is shown;

[0037] FIG. 8A to FIG. 8D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 4 are respectively shown;

[0038] Fig. 9 A schematic structural diagram of a camera lens assembly according to Embodiment 5 of the present application is shown;

[0039] FIG. 10A to FIG. 10D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 5 are respectively shown;

[0040] Fig.11 A schematic structural diagram of a camera lens assembly according to Embodiment 6 of the present application is shown;

[0041] FIG. 12A to FIG. 12D The axial chromatic aberration curve, astigmatism curve, distortion curve and lateral chromatic aberration curve of the camera lens set of Example 6 are respectively shown. DETAILED DESCRIPTION

[0042] In order to better understand the present application, a more detailed description will be made of various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

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

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

[0045] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is called the object side of the lens, and the surface of each lens closest to the imaging side is called the image side of the lens.

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

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

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

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

[0050] The optical imaging lens according to the exemplary embodiment of the present application may include five lenses with optical power, namely a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The five lenses are arranged in sequence from the object side to the image side along the optical axis of the optical imaging lens, and there may be an air gap between any two adjacent lenses.

[0051] In an exemplary embodiment, the first lens may have a positive or negative optical power; the second lens may have a positive or negative optical power; the third lens may have a positive optical power; the fourth lens may have a positive or negative optical power; and the fifth lens may have a positive or negative optical power. By reasonably matching the optical powers and surface profiles of the lenses in the optical system, the rationality of the structure of the optical imaging lens can be ensured.

[0052] In an exemplary embodiment, the object side surface of the fifth lens may be convex, and the image side surface may be concave.

[0053] In an exemplary embodiment, the maximum field of view FOV of the optical imaging lens may satisfy: FOV > 90°. When the optical imaging lens satisfies FOV > 90°, it can have the characteristic of a large field of view. More specifically, FOV may further satisfy: 90° < FOV < 95°.

[0054] In an exemplary embodiment, 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 and half of the diagonal length ImgH of the effective pixel region on the imaging surface of the optical imaging lens may satisfy: TTL / ImgH < 1.4. When the optical imaging lens satisfies TTL / ImgH < 1.4, it can achieve the characteristic of being ultra-thin. More specifically, TTL and ImgH may further satisfy: 1.3 < TTL / ImgH < 1.4.

[0055] In an exemplary embodiment, the effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens may satisfy 1.0 < |f2 / f4| < 2.5. When the optical imaging lens satisfies 1.0 < |f2 / f4| < 2.5, the incident angle of light when entering the surfaces of these two lenses can be reduced, the height of the light can be lowered, and thus the optical imaging lens has the characteristic of a small aperture. More specifically, f2 and f4 may further satisfy: 1.70 < |f2 / f4| < 2.35.

[0056] In an exemplary embodiment, the maximum half field of view Semi-FOV of the optical imaging lens, the maximum effective radius DT11 of the object side surface of the first lens, and the maximum effective radius DT21 of the object side surface of the second lens may satisfy: 2.0 < tan(Semi-FOV) / DT11 + tan(Semi-FOV) / DT21 < 4.0. When the optical imaging lens satisfies 2.0 < tan(Semi-FOV) / DT11 + tan(Semi-FOV) / DT21 < 4.0, the structure of the entire optical imaging lens can be made compact, which is conducive to miniaturization. More specifically, Semi-FOV, DT11, and DT21 may further satisfy: 2.5 < tan(Semi-FOV) / DT11 + tan(Semi-FOV) / DT21 < 3.5.

[0057] In an exemplary embodiment, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens may satisfy: 2.0 < f3 / f4 < 3.5. Satisfying 2.0 < f3 / f4 < 3.5 is beneficial to correcting the off-axis aberration of the optical imaging lens. More specifically, f3 and f4 may further satisfy: 2.1 < f3 / f4 < 3.3.

[0058] In an exemplary embodiment, the combined focal length f12 of the first lens and the second lens and the total effective focal length f of the optical imaging lens may satisfy: 3.0 ≤ f12 / f < 4.5. When the optical imaging lens satisfies 3.0 ≤ f12 / f < 4.5, the light trend at the first two lenses can be made smoother, which is beneficial to the miniaturization of the front part size of the optical imaging lens. More specifically, f12 and f may further satisfy: 3.0 < f12 / f < 4.3.

[0059] In an exemplary embodiment, the combined focal length f12 of the first lens and the second lens and the combined focal length f123 of the first lens, the second lens, and the third lens may satisfy: 2.0 < f12 / f123 < 3.0. When the optical imaging lens satisfies 2.0 < f12 / f123 < 3.0, it is beneficial to prevent the incident angle of light entering these three lenses from being too large, making the light deflection gentle and ensuring the effective aperture of the lens, thereby ensuring that the front aperture of the optical imaging lens is small. Furthermore, it is beneficial to make the aperture of the lens barrel for loading the lens small.

[0060] In an exemplary embodiment, the distance SAG41 on the optical axis from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens, the distance SAG42 on the optical axis from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens, and the central thickness CT4 of the fourth lens on the optical axis may satisfy: 1.0 < |(SAG41 + SAG42) / CT4| < 1.55. When the optical imaging lens satisfies 1.0 < |(SAG41 + SAG42) / CT4| < 1.5, it is beneficial to the injection molding of the fourth lens. More specifically, SAG41, SAG42, and CT4 may further satisfy: 1.1 < |(SAG41 + SAG42) / CT4| < 1.5.

[0061] In an exemplary embodiment, the total effective focal length f of the optical imaging lens and the radius of curvature R10 of the image side surface of the fifth lens may satisfy: 4.0 < f / R10 < 6.0. When the optical imaging lens satisfies 4.0 < f / R10 < 6.0, it can prevent the imaging quality of the inner field of view of the optical imaging lens from dropping suddenly at high frequencies and can reduce the eccentricity sensitivity of the lens. More specifically, f and R10 may further satisfy: 4.5 < f / R10 < 5.5.

[0062] In an exemplary embodiment, the effective focal length f1 of the first lens and the effective focal length f4 of the fourth lens may satisfy: 1.0 < f1 / f4 < 2.0. When the optical imaging lens satisfies 1.0 < f1 / f4 < 2.0, the contributions of these two lenses to the field curvature can be reasonably controlled, and the contributions of these two lenses to the field curvature can be balanced in a suitable state. More specifically, f1 and f4 may further satisfy: 1.3 < f1 / f4 < 1.9.

[0063] In an exemplary embodiment, the sum ∑CT of the central thicknesses of the first lens to the fifth lens on the optical axis, the air gap T12 between the first lens and the second lens on the optical axis, and the air gap T23 between the second lens and the third lens on the optical axis may satisfy: 7.0 < ∑CT / (T12 + T23) < 9.5. When the optical imaging lens satisfies 7.0 < ∑CT / (T12 + T23) < 9.5, the first three lenses can be made closer to each other, which is beneficial to reducing the height of the incident light, so as to meet the requirements of structural compactness and miniaturization. More specifically, ∑CT, T12, and T23 may further satisfy: 7.3 < ∑CT / (T12 + T23) < 9.3.

[0064] In an exemplary embodiment, the sum SETP of the thicknesses of the first lens to the fifth lens at the edge of the entrance pupil and in the direction parallel to the optical axis and the sum ∑AT of the air gaps between two adjacent lenses among the first lens to the fifth lens on the optical axis may satisfy: 2.5 < SETP / ∑AT < 3.0. When the optical imaging lens satisfies 2.5 < SETP / ∑AT < 3.0, it is beneficial to the processing and assembly of each lens, avoiding the problem of interference between the front and rear lenses caused by too small a gap during the assembly process. At the same time, it is also beneficial to slow down the light deflection, optimize the field curvature of the optical imaging lens, and reduce the sensitivity of the optical imaging lens, so that the optical imaging lens can obtain better imaging quality. More specifically, SETP and ∑AT may further satisfy: 2.6 < SETP / ∑AT < 2.9.

[0065] In an exemplary embodiment, half of the diagonal length ImgH of the effective pixel region on the imaging surface of the optical imaging lens, the maximum effective radius DT22 of the image side of the second lens, and the maximum effective radius DT32 of the image side of the third lens may satisfy: 6.0 < ImgH / DT22 + ImgH / DT32 < 7.5. When the optical imaging lens satisfies: 6.0 < ImgH / DT22 + ImgH / DT32 < 7.5, it is beneficial to maintaining the overall structural compactness of the optical imaging lens and further realizing miniaturization. More specifically, ImgH, DT22, and DT32 may further satisfy: 6.4 < ImgH / DT22 + ImgH / DT32 < 7.3.

[0066] In an exemplary embodiment, the optical imaging lens may further include a stop. The stop may be disposed at an appropriate position as required. For example, the stop may be disposed before 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.

[0067] The optical imaging lens according to the above-mentioned embodiment of the present application may use multiple lenses, such as the five lenses described above. By reasonably allocating the focal length, surface shape, center thickness of each lens, and axial spacing between each lens, the volume of the camera lens group can be effectively reduced and the processability of the camera lens group can be improved, making the camera lens group more conducive to production and processing and applicable to portable electronic products. The camera lens group configured as above can have the characteristics of miniaturization, large aperture, ultra-thinness, large viewing angle, large image surface, and good imaging quality.

[0068] In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical lens, 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 lens. 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 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, that is, 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 and the fifth 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 and the fifth lens are all aspherical mirror surfaces.

[0069] 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 five lenses are described as an example in the embodiments, the optical imaging lens is not limited to including five lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0070] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0071] Example 1

[0072] The following reference Figures 1 to 2D An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0073] like Figure 1 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0074] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is convex. The fourth lens E4 has positive focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0075] Table 1 shows the basic parameters of the camera lens set of Example 1, where the units of curvature radius, thickness / distance and focal length are all in millimeters (mm).

[0076]

[0077] Table 1

[0078] In this example, the total effective focal length f of the optical imaging lens is 2.85 mm, the total optical 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 S13 of the optical imaging lens on the optical axis) is 4.00 mm, half the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.04 mm, the aperture value Fno of the optical imaging lens is 2.27, and the maximum half field of view Semi-FOV of the optical imaging lens is 45.89° (i.e., the value of the maximum field of view FOV is 91.78°).

[0079] In Example 1, the object side surface and the image side surface of any lens among the first lens E1 to the fifth lens E5 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:

[0080]

[0081] 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. Tables 2 and 3 give the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each aspheric mirror surface S1-S10 in Example 1.

[0082] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.2314E-02 2.2020E+00 -6.4094E+01 1.2065E+03 -1.5444E+04 1.3886E+05 -8.9566E+05 S2 -9.2095E-02 1.1925E+00 -3.3991E+01 6.3313E+02 -8.3816E+03 7.9153E+04 -5.3629E+05 S3 -3.6920E-01 5.3354E+00 -1.0123E+02 1.3707E+03 -1.3031E+04 8.6990E+04 -4.0742E+05 S4 -5.5021E-01 3.6050E+00 -9.6059E+00 -1.5140E+02 2.3268E+03 -1.6897E+04 7.7897E+04 S5 -6.4504E-01 7.2794E+00 -9.3388E+01 9.7742E+02 -7.5612E+03 4.2437E+04 -1.7363E+05 S6 -1.3055E-01 -7.2241E-01 1.3458E+01 -1.2991E+02 8.1602E+02 -3.5547E+03 1.1060E+04 S7 9.8335E-02 -1.7536E+00 8.4868E+00 -3.3395E+01 9.4998E+01 -1.8038E+02 2.0117E+02 S8 7.4742E-02 -9.1982E-01 3.1403E+00 -5.4609E+00 6.5574E-01 1.9276E+01 -4.7019E+01 S9 -9.1083E-01 2.4609E-01 1.6235E+00 -3.5063E+00 4.0414E+00 -3.1114E+00 1.7060E+00 S10 -5.7523E-01 7.8214E-01 -7.1092E-01 4.3762E-01 -1.7293E-01 3.3364E-02 5.3718E-03

[0083] Table 2

[0084] Face number A18 A20 A22 A24 A26 A28 A30 S1 4.1951E+06 -1.4306E+07 3.5209E+07 -6.1023E+07 7.0770E+07 -4.9355E+07 1.5662E+07 S2 2.6118E+06 -9.1090E+06 2.2466E+07 -3.8144E+07 4.2303E+07 -2.7523E+07 7.9474E+06 S3 1.3219E+06 -2.8604E+06 3.7170E+06 -1.8100E+06 -2.0830E+06 3.6182E+06 -1.6251E+06 S4 -2.4392E+05 5.2672E+05 -7.7403E+05 7.4047E+05 -4.1713E+05 1.0640E+05 -1.2505E+03 S5 5.2039E+05 -1.1403E+06 1.8044E+06 -2.0062E+06 1.4858E+06 -6.5761E+05 1.3150E+05 S6 -2.4972E+04 4.1077E+04 -4.8778E+04 4.0751E+04 -2.2729E+04 7.5963E+03 -1.1501E+03 S7 -5.8635E+01 -1.8985E+02 3.3797E+02 -2.8263E+02 1.3548E+02 -3.5762E+01 4.0462E+00 S8 6.0115E+01 -4.7942E+01 2.4709E+01 -8.1134E+00 1.5947E+00 -1.6086E-01 5.2748E-03 S9 -6.8240E-01 2.0011E-01 -4.2602E-02 6.4120E-03 -6.4696E-04 3.9265E-05 -1.0836E-06 S10 -6.0916E-03 2.1595E-03 -4.5751E-04 6.2807E-05 -5.5020E-06 2.8086E-07 -6.3756E-09

[0085] Table 3

[0086] 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.

[0087] Example 2

[0088] 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.

[0089] 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 filter E6 and an imaging surface S13.

[0090] 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 concave, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0091] In this example, the total effective focal length f of the optical imaging lens is 2.84 mm, the total length TTL of the optical imaging lens is 4.00 mm, half the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.04 mm, the aperture value Fno of the optical imaging lens is 2.27, and the maximum half field of view Semi-FOV of the optical imaging lens is 45.90°.

[0092] Table 4 shows the basic parameters of the optical imaging lens of Example 2, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 5 and 6 show the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 of the aspheric mirror surfaces S1-S10 that can be used in Example 2. The surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0093]

[0094] Table 4

[0095] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.4712E-02 2.3480E+00 -6.7885E+01 1.2182E+03 -1.4444E+04 1.1745E+05 -6.7006E+05 S2 -7.5319E-02 2.8055E-01 -5.9694E+00 7.0188E+01 -8.0276E+02 8.2436E+03 -6.5034E+04 S3 -3.8688E-01 6.0140E+00 -1.1194E+02 1.5128E+03 -1.4602E+04 1.0075E+05 -5.0043E+05 S4 -4.9506E-01 1.1185E+00 3.7102E+01 -6.8756E+02 6.5548E+03 -4.0941E+04 1.7886E+05 S5 -4.6279E-01 9.8674E-01 1.7285E+01 -2.7699E+02 2.2648E+03 -1.2553E+04 5.0276E+04 S6 -1.9475E-01 1.1286E+00 -1.4508E+01 1.2822E+02 -7.6309E+02 3.1618E+03 -9.3707E+03 S7 1.1000E-01 -1.5713E+00 7.0892E+00 -2.7218E+01 7.5685E+01 -1.3385E+02 1.1344E+02 S8 9.7884E-02 -1.2943E+00 5.8366E+00 -1.6578E+01 3.0259E+01 -3.4527E+01 2.1601E+01 S9 -9.0084E-01 2.4329E-01 1.6145E+00 -3.5030E+00 4.0436E+00 -3.1029E+00 1.6875E+00 S10 -5.6861E-01 7.4936E-01 -6.2753E-01 3.0922E-01 -4.4339E-02 -5.4359E-02 4.7329E-02

[0096] Table 5

[0097]

[0098]

[0099] Table 6

[0100] 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. 4A to 4D It can be seen that the optical imaging lens provided in Example 2 can achieve good imaging quality.

[0101] Example 3

[0102] The following reference Figures 5 to 6D The optical imaging lens according to Embodiment 3 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 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0103] 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 filter E6 and an imaging surface S13.

[0104] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is convex. The second lens E2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is convex. The fourth lens E4 has positive focal power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0105] In this example, the total effective focal length f of the optical imaging lens is 2.84 mm, the total length TTL of the optical imaging lens is 4.02 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.04 mm, the aperture value Fno of the optical imaging lens is 2.27, and the maximum half field of view Semi-FOV of the optical imaging lens is 45.89°.

[0106] Table 7 shows the basic parameters of the optical imaging lens of Example 3, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 8 and 9 show the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 of the aspheric mirror surfaces S1-S10 in Example 3. The surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0107]

[0108]

[0109] Table 7

[0110] Face number A4 A6 A8 A10 A12 A14 A16 S1 -7.2116E-02 4.5812E+00 -1.3285E+02 2.3575E+03 -2.7836E+04 2.2732E+05 -1.3152E+06 S2 -1.0233E-01 -3.1569E+00 9.5240E+01 -1.7613E+03 2.1269E+04 -1.7676E+05 1.0418E+06 S3 -3.9727E-01 8.1745E+00 -1.6729E+02 2.4149E+03 -2.4677E+04 1.8236E+05 -9.8941E+05 S4 -4.9272E-01 6.2839E+00 -7.6439E+01 7.5053E+02 -5.5978E+03 3.1339E+04 -1.3135E+05 S5 -3.8012E-01 1.6437E+00 -8.3246E+00 4.5792E+01 -2.8638E+02 1.6638E+03 -7.6688E+03 S6 -9.4456E-03 -3.3843E+00 4.3843E+01 -3.6328E+02 2.0848E+03 -8.5524E+03 2.5509E+04 S7 1.4031E-01 -2.1020E+00 9.4110E+00 -3.0589E+01 6.2953E+01 -5.7066E+01 -7.3414E+01 S8 5.0162E-02 -8.1321E-01 3.1969E+00 -7.9352E+00 1.1998E+01 -8.9679E+00 -1.9175E+00 S9 -9.4689E-01 4.6711E-01 1.0412E+00 -2.5695E+00 3.0388E+00 -2.3716E+00 1.3201E+00 S10 -6.1262E-01 9.1769E-01 -9.6973E-01 7.5313E-01 -4.3584E-01 1.8880E-01 -6.1232E-02

[0111] Table 8

[0112] Face number A18 A20 A22 A24 A26 A28 A30 S1 5.4586E+06 -1.6275E+07 3.4501E+07 -5.0647E+07 4.8848E+07 -2.7788E+07 7.0504E+06 S2 -4.4212E+06 1.3552E+07 -2.9717E+07 4.5429E+07 -4.5952E+07 2.7626E+07 -7.4704E+06 S3 3.9678E+06 -1.1733E+07 2.5245E+07 -3.8410E+07 3.9136E+07 -2.3940E+07 6.6413E+06 S4 4.1046E+05 -9.4787E+05 1.5900E+06 -1.8786E+06 1.4791E+06 -6.9553E+05 1.4756E+05 S5 2.6034E+04 -6.3078E+04 1.0661E+05 -1.2173E+05 8.8653E+04 -3.6693E+04 6.4380E+03 S6 -5.5765E+04 8.9233E+04 -1.0323E+05 8.3996E+04 -4.5565E+04 1.4789E+04 -2.1716E+03 S7 3.3175E+02 -5.4897E+02 5.4149E+02 -3.4110E+02 1.3491E+02 -3.0624E+01 3.0513E+00 S8 1.1383E+01 -1.1598E+01 5.9829E+00 -1.5655E+00 1.1041E-01 3.6088E-02 -6.3523E-03 S9 -5.3765E-01 1.6077E-01 -3.4891E-02 5.3441E-03 -5.4734E-04 3.3625E-05 -9.3662E-07 S10 1.4807E-02 -2.6419E-03 3.4111E-04 -3.0804E-05 1.8323E-06 -6.3892E-08 9.7592E-10

[0113] Table 9

[0114] 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.

[0115] Example 4

[0116] The following reference Figures 7 to 8D The optical imaging lens according to Embodiment 4 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 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown.

[0117] 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 filter E6 and an imaging surface S13.

[0118] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is convex. The second lens E2 has negative focal power, and its object side surface S3 is concave, 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 concave, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0119] In this example, the total effective focal length f of the optical imaging lens is 2.84 mm, the total length TTL of the optical imaging lens is 4.02 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.04 mm, the aperture value Fno of the optical imaging lens is 2.27, and the maximum half field of view Semi-FOV of the optical imaging lens is 45.90°.

[0120] Table 10 shows the basic parameters of the optical imaging lens of Example 4, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 11 and 12 show the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 of the aspheric mirror surfaces S1-S10 that can be used in Example 4. The surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0121]

[0122] Table 10

[0123] Face number A4 A6 A8 A10 A12 A14 A16 S1 -3.7867E-02 3.2337E+00 -1.0192E+02 1.8997E+03 -2.3259E+04 1.9556E+05 -1.1599E+06 S2 -9.9062E-02 -3.2704E+00 9.6104E+01 -1.7561E+03 2.1114E+04 -1.7534E+05 1.0341E+06 S3 -3.6055E-01 6.5157E+00 -1.2158E+02 1.6038E+03 -1.4922E+04 1.0001E+05 -4.9051E+05 S4 -4.6125E-01 5.4944E+00 -6.4486E+01 6.2873E+02 -4.7022E+03 2.6390E+04 -1.1045E+05 S5 -3.7378E-01 1.5375E+00 -7.9851E+00 5.7968E+01 -5.1421E+02 3.7312E+03 -1.9429E+04 S6 -7.3062E-03 -3.4492E+00 4.4728E+01 -3.7065E+02 2.1249E+03 -8.7031E+03 2.5909E+04 S7 1.1974E-01 -1.5902E+00 4.0142E+00 4.6755E+00 -9.1558E+01 4.1560E+02 -1.1070E+03 S8 4.9661E-02 -8.5219E-01 3.6660E+00 -1.0433E+01 1.9894E+01 -2.5343E+01 2.1425E+01 S9 -9.4827E-01 4.8593E-01 9.6017E-01 -2.3879E+00 2.7900E+00 -2.1450E+00 1.1766E+00 S10 -6.1215E-01 9.1437E-01 -9.6068E-01 7.3715E-01 -4.1715E-01 1.7412E-01 -5.3335E-02

[0124] Table 11

[0125] Face number A18 A20 A22 A24 A26 A28 A30 S1 4.9196E+06 -1.4953E+07 3.2239E+07 -4.8023E+07 4.6884E+07 -2.6926E+07 6.8775E+06 S2 -4.3942E+06 1.3492E+07 -2.9657E+07 4.5494E+07 -4.6251E+07 2.8001E+07 -7.6417E+06 S3 1.7743E+06 -4.7280E+06 9.1693E+06 -1.2591E+07 1.1606E+07 -6.4421E+06 1.6272E+06 S4 3.4304E+05 -7.8398E+05 1.2968E+06 -1.5066E+06 1.1638E+06 -5.3595E+05 1.1120E+05 S5 7.1120E+04 -1.8275E+05 3.2729E+05 -3.9946E+05 3.1630E+05 -1.4626E+05 2.9931E+04 S6 -5.6512E+04 9.0184E+04 -1.0400E+05 8.4298E+04 -4.5531E+04 1.4706E+04 -2.1480E+03 S7 1.9660E+03 -2.4185E+03 2.0720E+03 -1.2140E+03 4.6399E+02 -1.0424E+02 1.0446E+01 S8 -1.1997E+01 4.9449E+00 -2.2051E+00 1.1903E+00 -4.8513E-01 1.0959E-01 -1.0200E-02 S9 -4.7280E-01 1.3971E-01 -3.0001E-02 4.5515E-03 -4.6209E-04 2.8153E-05 -7.7802E-07 S10 1.1836E-02 -1.8533E-03 1.9397E-04 -1.1914E-05 2.4297E-07 1.5020E-08 -7.7723E-10

[0126] Table 12

[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.8DThe 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 The optical imaging lens according to Embodiment 5 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. 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 filter E6 and an imaging surface S13.

[0131] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is convex. The second lens E2 has negative focal power, and its object side surface S3 is concave, 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 convex. The fifth lens E5 has negative focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0132] In this example, the total effective focal length f of the optical imaging lens is 2.84 mm, the total length TTL of the optical imaging lens is 4.02 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.04 mm, the aperture value Fno of the optical imaging lens is 2.27, and the maximum half field of view Semi-FOV of the optical imaging lens is 45.88°.

[0133] Table 13 shows the basic parameters of the optical imaging lens of Example 5, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 14 and 15 show the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 of the aspheric mirror surfaces S1-S10 in Example 5. The surface shapes of the aspheric surfaces can be defined by the formula (1) given in the above-mentioned Example 1.

[0134]

[0135] Table 13

[0136]

[0137]

[0138] Table 14

[0139] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.8831E+06 -5.5491E+06 1.1558E+07 -1.6561E+07 1.5472E+07 -8.4514E+06 2.0378E+06 S2 -1.7031E+06 4.6598E+06 -9.0948E+06 1.2348E+07 -1.1081E+07 5.9088E+06 -1.4182E+06 S3 1.2836E+06 -3.2819E+06 6.0340E+06 -7.7654E+06 6.6349E+06 -3.3788E+06 7.7573E+05 S4 3.3234E+05 -7.0210E+05 1.0698E+06 -1.1435E+06 8.1252E+05 -3.4439E+05 6.5824E+04 S5 -3.6291E+04 5.5612E+04 -5.2111E+04 2.1033E+04 8.8581E+03 -1.3191E+04 4.1454E+03 S6 -3.2771E+04 4.4893E+04 -4.4755E+04 3.1622E+04 -1.5027E+04 4.3131E+03 -5.6573E+02 S7 -2.6046E+02 1.9279E+02 -9.9192E+01 3.3507E+01 -6.6193E+00 5.5777E-01 6.5370E-03 S8 7.8576E+01 -6.5359E+01 3.6735E+01 -1.3829E+01 3.3460E+00 -4.7095E-01 2.9345E-02 S9 -4.7643E-01 1.3931E-01 -2.9492E-02 4.4015E-03 -4.3946E-04 2.6377E-05 -7.2104E-07 S10 6.4422E-03 -8.8597E-04 7.8099E-05 -3.3793E-06 -6.1624E-08 1.4177E-08 -4.8462E-10

[0140] Table 15

[0141] 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.

[0142] Example 6

[0143] The following reference Figures 11 to 12D The optical imaging lens according to Embodiment 6 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. Fig.11 A schematic structural diagram of an optical imaging lens according to Example 6 of the present application is shown.

[0144] 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 filter E6 and an imaging surface S13.

[0145] 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 concave, 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 convex. The fifth lens E5 has negative focal power, and its object side surface S9 is convex, and its image side surface S10 is concave. The filter E6 has an object side surface S11 and an image side surface S12. The light from the object passes through each surface S1 to S12 in sequence and is finally imaged on the imaging surface S13.

[0146] In this example, the total effective focal length f of the optical imaging lens is 2.84 mm, the total length TTL of the optical imaging lens is 4.02 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the optical imaging lens is 3.04 mm, the aperture value Fno of the optical imaging lens is 2.30, and the maximum half field of view Semi-FOV of the optical imaging lens is 45.88°.

[0147] Table 16 shows the basic parameters of the optical imaging lens of Example 6, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm). Tables 17 and 18 show the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 of the aspheric mirror surfaces S1-S10 that can be used in Example 6. The surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0148]

[0149]

[0150] Table 16

[0151] Face number A4 A6 A8 A10 A12 A14 A16 S1 -6.1732E-03 1.2302E+00 -3.8623E+01 6.9989E+02 -8.4944E+03 7.1628E+04 -4.2878E+05 S2 -1.2426E-01 -2.1593E+00 5.6896E+01 -9.4656E+02 1.0286E+04 -7.6631E+04 4.0250E+05 S3 -2.4295E-01 3.7487E+00 -7.9322E+01 1.1264E+03 -1.0886E+04 7.3943E+04 -3.6069E+05 S4 -3.3446E-01 4.1932E+00 -5.5853E+01 5.7944E+02 -4.3523E+03 2.3657E+04 -9.3938E+04 S5 -2.4139E-01 -5.8304E-01 1.7853E+01 -1.8530E+02 1.2221E+03 -5.5832E+03 1.7880E+04 S6 2.4555E-02 -4.2763E+00 4.6822E+01 -3.2612E+02 1.5730E+03 -5.4487E+03 1.3823E+04 S7 7.5354E-02 -1.7393E+00 8.4202E+00 -2.9573E+01 7.4174E+01 -1.3232E+02 1.6618E+02 S8 -6.2512E-03 -5.8299E-01 2.2354E+00 -3.5581E+00 -2.6888E+00 2.4915E+01 -5.6458E+01 S9 -9.6118E-01 5.9407E-01 5.9255E-01 -1.7372E+00 2.0295E+00 -1.5007E+00 7.7153E-01 S10 -6.0418E-01 8.6176E-01 -8.5036E-01 6.0267E-01 -3.1039E-01 1.1615E-01 -3.1253E-02

[0152] Table 17

[0153] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.8406E+06 -5.6649E+06 1.2361E+07 -1.8617E+07 1.8359E+07 -1.0645E+07 2.7455E+06 S2 -1.5125E+06 4.0797E+06 -7.8308E+06 1.0435E+07 -9.1757E+06 4.7880E+06 -1.1236E+06 S3 1.2776E+06 -3.2882E+06 6.0827E+06 -7.8757E+06 6.7716E+06 -3.4718E+06 8.0295E+05 S4 2.7387E+05 -5.8461E+05 9.0163E+05 -9.7667E+05 7.0404E+05 -3.0293E+05 5.8802E+04 S5 -3.9656E+04 5.8520E+04 -5.1507E+04 1.6409E+04 1.4080E+04 -1.5903E+04 4.7097E+03 S6 -2.5932E+04 3.5969E+04 -3.6466E+04 2.6298E+04 -1.2789E+04 3.7632E+03 -5.0632E+02 S7 -1.4153E+02 7.3296E+01 -1.3259E+01 -9.4458E+00 7.5191E+00 -2.1928E+00 2.4581E-01 S8 7.3748E+01 -6.2658E+01 3.5730E+01 -1.3601E+01 3.3222E+00 -4.7168E-01 2.9639E-02 S9 -2.8434E-01 7.5471E-02 -1.4246E-02 1.8540E-03 -1.5687E-04 7.6907E-06 -1.6379E-07 S10 5.8773E-03 -7.1878E-04 4.4367E-05 1.2148E-06 -4.6694E-07 3.5135E-08 -9.6745E-10

[0154] Table 18

[0155] 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.

[0156] In summary, Examples 1 to 6 respectively satisfy the relationships shown in Table 19.

[0157]

[0158]

[0159] Table 19

[0160] The present application also provides a camera 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 camera device such as a digital camera, or a camera module integrated in a mobile electronic device such as a mobile phone. The camera device is equipped with the camera lens group described above.

[0161] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. An optical imaging lens, characterized in that: It sequentially includes, from the object side to the image side along the optical axis: A first lens with positive optical power, whose object side is convex; A second lens with negative optical power, whose image side is concave; A third lens with positive optical power, whose object side is convex; A fourth lens with positive optical power, whose image side is convex; A fifth lens with negative optical power, whose object side is convex and image side is concave; Wherein, the distance TTL on the optical axis from the object side of the first lens to the imaging surface of the optical imaging lens and half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens satisfy 1.3 < TTL / ImgH < 1.4; and The maximum half field of view Semi-FOV of the optical imaging lens, the maximum effective radius DT11 of the object side of the first lens, and the maximum effective radius DT21 of the object side of the second lens satisfy: 2.87 ≤ tan(Semi-FOV) / DT11 + tan(Semi-FOV) / DT21 ≤ 3.08; The total effective focal length f of the optical imaging lens and the radius of curvature R10 of the image side of the fifth lens satisfy: 4.93 ≤ f / R10 ≤ 5.24; The number of lenses with optical power in the optical imaging lens is five.

2. The optical imaging lens according to claim 1, wherein: The effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: 2.15 ≤ f3 / f4 ≤ 3.

21.

3. The optical imaging lens according to claim 2, wherein: The maximum field of view FOV of the optical imaging lens satisfies 90° < FOV < 95°.

4. The optical imaging lens according to claim 2, wherein: The effective focal length f2 of the second lens and the effective focal length f4 of the fourth lens satisfy 1.91 ≤ |f2 / f4| ≤ 2.

30.

5. The optical imaging lens according to claim 1, wherein: The combined focal length f12 of the first lens and the second lens and the total effective focal length f of the optical imaging lens satisfy: 3.0 ≤ f12 / f ≤ 4.

13.

6. The optical imaging lens according to claim 1, wherein: The combined focal length f12 of the first lens and the second lens and the combined focal length f123 of the first lens, the second lens, and the third lens satisfy: 2.0 < f12 / f123 < 3.

0.

7. The optical imaging lens according to claim 1, wherein: The distance SAG41 on the optical axis from the intersection of the object side of the fourth lens and the optical axis to the vertex of the effective radius of the object side of the fourth lens, the distance SAG42 on the optical axis from the intersection of the image side of the fourth lens and the optical axis to the vertex of the effective radius of the image side of the fourth lens, and the central thickness CT4 of the fourth lens on the optical axis satisfy: 1.22 ≤ |(SAG41 + SAG42) / CT4| < 1.

55.

8. The optical imaging lens according to claim 1, wherein: The effective focal length f1 of the first lens and the effective focal length f4 of the fourth lens satisfy: 1.42 ≤ f1 / f4 ≤ 1.

81.

9. The optical imaging lens according to claim 1, wherein: The sum ∑CT of the central thicknesses of the first lens to the fifth lens on the optical axis, the distance T12 between the first lens and the second lens on the optical axis, and the distance T23 between the second lens and the third lens on the optical axis satisfy: 7.50 ≤ ∑CT / (T12 + T23) ≤ 9.

10.

10. The optical imaging lens according to claim 1, wherein: The sum of the thicknesses SETP of the first lens to the fifth lens at the edge of the entrance pupil and in a direction parallel to the optical axis and the sum ∑AT of the air intervals between any two adjacent lenses of the first lens to the fifth lens on the optical axis satisfy: 2.71≤SETP / ∑AT<2.

9.

11. The optical imaging lens according to claim 1, wherein: Half of the diagonal length ImgH of the effective pixel area on the imaging plane of the optical imaging lens, the maximum effective radius DT22 of the image side surface of the second lens, and the maximum effective radius DT32 of the image side surface of the third lens satisfy: 6.61≤ImgH / DT22+ImgH / DT32≤7.

13.

12. An electronic device, characterized in that: The invention comprises the optical imaging lens according to claim 1 and an imaging element for converting an optical pattern formed by the optical imaging lens into an electrical signal.

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