Camera lens

Abstract

The present application discloses a camera lens, which comprises, in order from the object side to the image side along the optical axis: a first lens with positive focal power; a second lens with negative focal power; a third lens with positive focal power; a fourth lens with positive focal power; and a fifth lens with negative focal power; wherein a distance EPP from the aperture of the camera lens to the object side surface of the first lens on the optical axis satisfies: 0mm<EPP<0.35mm; an effective focal length fa45 of an air lens formed by the image side surface of the fourth lens and the object side surface of the fifth lens and a spacing distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 3.5≤fa45 / T45≤6.0.

Description

Technical Field

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

[0002] In recent years, as the homogenization of portable electronic devices such as smartphones and tablet computers has become increasingly prominent, the advantages and disadvantages of the various sub-functions of these portable electronic devices have a great impact on the market share of the device. Among the various sub-functions of portable devices, the camera function has received extra attention. Users expect that the images captured by the camera lens of a portable electronic device will be close to or even reach the level of a professional camera. In addition, since portable electronic devices need to meet the portable characteristics, the space reserved for camera lenses in portable electronic devices is limited. In addition, in the case where the camera lens is, for example, the front camera of a portable electronic device, the size of the camera lens, especially the head size, significantly affects the screen-to-body ratio of the portable electronic device. Under such a pattern, the market needs a camera lens that takes into account both miniaturization and imaging quality. Summary of the invention

[0003] On one hand, the present application provides a camera lens, which includes, in order from the object side to the image side along the optical axis: a first lens with positive optical focal length; a second lens with negative optical focal length; a third lens with positive optical focal length; a fourth lens with positive optical focal length; and a fifth lens with negative optical focal length.

[0004] In one embodiment, a distance EPP from the aperture of the camera lens to the object side surface of the first lens on the optical axis may satisfy: 0 mm < EPP < 0.35 mm.

[0005] In one embodiment, an effective focal length fa45 of an air lens formed by the image side surface of the fourth lens and the object side surface of the fifth lens and a spacing distance T45 between the fourth lens and the fifth lens on the optical axis may satisfy: 3.5≤fa45 / T45≤6.0.

[0006] In one embodiment, the maximum effective radius DT11 of the object side surface of the first lens and the distance EPP from the aperture of the camera lens to the object side surface of the first lens on the optical axis may satisfy: 0<EPP / DT11<0.5.

[0007] In one embodiment, the combined focal length f345 of the third lens, the fourth lens and the fifth lens and the effective focal length fa23 of the air lens formed by the image side surface of the second lens and the object side surface of the third lens may satisfy: -1.2<fa23 / f345<0.

[0008] In one embodiment, the total effective focal length f of the camera lens, the curvature radius R1 of the object side surface of the first lens, and the curvature radius R2 of the image side surface of the first lens may satisfy: 2.5<f / R1+f / R2<3.5.

[0009] In one embodiment, the total effective focal length f of the camera lens, the curvature radius R6 of the image side surface of the third lens, and the curvature radius R7 of the object side surface of the fourth lens may satisfy: f / |R6|+f / |R7|<2.0.

[0010] In one embodiment, the center thickness CT3 of the third lens, the center thickness CT4 of the fourth lens, the spacing distance T23 between the second lens and the third lens on the optical axis, and the spacing distance T34 between the third lens and the fourth lens on the optical axis may satisfy: 0.9≤(CT3+CT4) / (T23+T34)<3.

[0011] In one embodiment, the Abbe number V3 of the third lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens may satisfy: 50<(V3+V4+V5) / 3<60.

[0012] In one embodiment, a spacing distance ET23 between the edges of the second lens and the third lens and a spacing distance T23 between the second lens and the third lens on the optical axis may satisfy: 0.1<ET23 / T23<0.6.

[0013] In one embodiment, an edge thickness ET3 of the third lens and a center thickness CT3 of the third lens may satisfy: 0.5≤ET3 / CT3≤0.7.

[0014] In one embodiment, the effective focal length f2 of the second lens and the curvature radius R4 of the image-side surface of the second lens may satisfy: -3.0≤f2 / R4<-1.0.

[0015] In one embodiment, the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens may satisfy: -1.8<f4 / f5≤-1.0.

[0016] In one embodiment, a curvature radius R8 of the image-side surface of the fourth lens and a curvature radius R9 of the object-side surface of the fifth lens may satisfy: -4.0<R9 / R8<0.

[0017] In one embodiment, the total effective focal length f of the camera lens and the curvature radius R10 of the image-side surface of the fifth lens may satisfy: 3≤f / R10≤5.5.

[0018] In one embodiment, the maximum effective radius DT41 of the object-side surface of the fourth lens and the maximum effective radius DT32 of the image-side surface of the third lens may satisfy: 1.1≤DT41 / DT32<1.5.

[0019] The present application adopts multiple (for example, five) lenses, and reasonably distributes the optical focal length, surface shape, center thickness of each lens and the axial spacing between each lens, and reasonably moves the aperture of the camera lens forward, so that the camera lens has at least one beneficial effect such as a small head, good processability, and high imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1 A schematic structural diagram of a camera lens according to Embodiment 1 of the present application is shown;

[0022] FIG. 2A to FIG. 2D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the imaging lens of Example 1 are respectively shown;

[0023] Figure 3 A schematic structural diagram of a camera lens according to Embodiment 2 of the present application is shown;

[0024] FIG. 4A to FIG. 4D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens of Example 2 are respectively shown;

[0025] Figure 5 A schematic structural diagram of a camera lens according to Embodiment 3 of the present application is shown;

[0026] FIG. 6A to FIG. 6D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens of Example 3 are respectively shown;

[0027] Figure 7 A schematic structural diagram of a camera lens according to Embodiment 4 of the present application is shown;

[0028] FIG. 8A to FIG. 8D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens of Example 4 are respectively shown;

[0029] Fig. 9 A schematic structural diagram of a camera lens according to Embodiment 5 of the present application is shown;

[0030] FIG. 10A to FIG. 10D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the imaging lens of Example 5 are respectively shown;

[0031] Fig.11 A schematic structural diagram of a camera lens according to Embodiment 6 of the present application is shown;

[0032] FIG. 12A to FIG. 12D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the imaging lens of Example 6 are respectively shown;

[0033] Fig.13 A schematic structural diagram of a camera lens according to Embodiment 7 of the present application is shown;

[0034] FIG. 14A to FIG. 14D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the imaging lens of Example 7 are respectively shown;

[0035] Fig.15 A schematic structural diagram of a camera lens according to Embodiment 8 of the present application is shown;

[0036] FIG. 16A to FIG. 16D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the imaging lens of Example 8 are respectively shown. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0043] 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.

[0044] The features, principles and other aspects of the present application are described in detail below.

[0045] The camera 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. Any two adjacent lenses from the first lens to the fifth lens may have a spacing distance between them.

[0046] In an exemplary embodiment, the first lens may have positive power; the second lens may have negative power; the third lens may have positive power; the fourth lens may have positive power; and the fifth lens may have negative power.

[0047] By rationally allocating the positive and negative focal lengths of each lens in the camera lens, the low-order aberrations of the system can be effectively balanced, so that the system has better imaging quality and processability.

[0048] In an exemplary embodiment, the camera lens according to the present application may satisfy: 0mm<EPP<0.35mm, where EPP is the distance from the aperture of the camera lens to the object side of the first lens on the optical axis. Satisfying 0mm<EPP<0.35mm can reduce the size of the optical system head, enabling the size of the front camera of a portable electronic product on the screen to be sufficiently small.

[0049] In an exemplary embodiment, the camera lens according to the present application may satisfy: 3.5≤fa45 / T45≤6.0, where fa45 is the effective focal length of the air lens formed by the image side surface of the fourth lens and the object side surface of the fifth lens, and T45 is the spacing distance between the fourth lens and the fifth lens on the optical axis. Satisfying 3.5≤fa45 / T45≤6.0 can ensure that the optical lens has good processability and that the distance from the object side surface of the fourth lens to the imaging surface on the optical axis is within a certain range.

[0050] In an exemplary embodiment, the camera lens according to the present application may satisfy: 0<EPP / DT11<0.5, wherein DT11 is the maximum effective radius of the object side of the first lens, and EPP is the distance from the aperture of the camera lens to the object side of the first lens on the optical axis. Satisfying 0<EPP / DT11<0.5 can reduce the size of the lens, realize miniaturization of the lens, and improve the resolution of the lens.

[0051] In an exemplary embodiment, the camera lens according to the present application may satisfy: -1.2<fa23 / f345<0, wherein f345 is the combined focal length of the third lens, the fourth lens, and the fifth lens, and fa23 is the effective focal length of the lens formed by the image side surface of the second lens and the object side surface of the third lens. More specifically, fa23 and f345 may further satisfy: -1.1<fa23 / f345<0. Satisfying -1.2<fa23 / f345<0 can reduce the aberration of the edge field of view.

[0052] In an exemplary embodiment, the camera lens according to the present application may satisfy: 2.5<f / R1+f / R2<3.5, wherein f is the total effective focal length of the camera lens, R1 is the radius of curvature of the object side of the first lens, and R2 is the radius of curvature of the image side of the first lens. More specifically, f, R1, and R2 may further satisfy: 2.6<f / R1+f / R2<3.5. Satisfying 2.5<f / R1+f / R2<3.5 can effectively control the refraction angle of the light beam in the system at the first lens, and can also make the system have good processability.

[0053] In an exemplary embodiment, the camera lens according to the present application may satisfy: f / |R6|+f / |R7|<2.0, wherein f is the total effective focal length of the camera lens, R6 is the radius of curvature of the image side surface of the third lens, and R7 is the radius of curvature of the object side surface of the fourth lens. More specifically, f, R6, and R7 may further satisfy: f / |R6|+f / |R7|<1.7. Satisfying f / |R6|+f / |R7|<2.0 can reduce the size of optical distortion and ensure that the camera lens has good imaging quality.

[0054] In an exemplary embodiment, the camera lens according to the present application may satisfy: 0.9≤(CT3+CT4) / (T23+T34)<3, wherein CT3 is the center thickness of the third lens, CT4 is the center thickness of the fourth lens, T23 is the spacing distance between the second lens and 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, CT3, CT4, T23 and T34 may further satisfy: 0.9≤(CT3+CT4) / (T23+T34)<2.8. Satisfying 0.9≤(CT3+CT4) / (T23+T34)<3 helps to evenly distribute the lens sizes, ensure the stability of assembly, reduce the aberrations of the entire imaging system, and shorten the total length of the imaging system.

[0055] In an exemplary embodiment, the camera lens according to the present application may satisfy: 50<(V3+V4+V5) / 3<60, wherein V3 is the Abbe number of the third lens, V4 is the Abbe number of the fourth lens, and V5 is the Abbe number of the fifth lens. More specifically, V3, V4, and V5 may further satisfy: 55<(V3+V4+V5) / 3<57. Satisfying 50<(V3+V4+V5) / 3<60 is beneficial to the overall matching and coordination of the system lens, and a higher degree of freedom is used to optimize the lens surface shape to achieve a better aberration balance.

[0056] In an exemplary embodiment, the camera lens according to the present application may satisfy: 0.1<ET23 / T23<0.6, where ET23 is the distance between the edges of the second lens and the third lens, and T23 is the distance between the second lens and the third lens on the optical axis. Satisfying 0.1<ET23 / T23<0.6 can balance the field curvature generated by the front lens and the rear lens of the system, so that the system has reasonable field curvature.

[0057] In an exemplary embodiment, the camera lens according to the present application may satisfy: 0.5≤ET3 / CT3≤0.7, where ET3 is the edge thickness of the third lens and CT3 is the center thickness of the third lens. Satisfying 0.5≤ET3 / CT3≤0.7 helps to evenly distribute the lens size, ensure the stability of assembly, and reduce the aberration of the entire imaging system.

[0058] In an exemplary embodiment, the camera lens according to the present application may satisfy: -3.0≤f2 / R4<-1.0, where f2 is the effective focal length of the second lens, and R4 is the radius of curvature of the image side surface of the second lens. More specifically, f2 and R4 may further satisfy: -2.9≤f2 / R4<-1.2. Satisfying -3.0≤f2 / R4<-1.0 can reduce the size of optical distortion and ensure that the camera lens has good imaging quality.

[0059] In an exemplary embodiment, the camera lens according to the present application may satisfy: -1.8<f4 / f5≤-1.0, where f4 is the effective focal length of the fourth lens, and f5 is the effective focal length of the fifth lens. Satisfying -1.8<f4 / f5≤-1.0 can not only make the system have a smaller spherical aberration, ensure good imaging quality in the on-axis field of view, but also effectively reduce the optical sensitivity of the fourth lens and the fifth lens, which is conducive to mass production.

[0060] In an exemplary embodiment, the camera lens according to the present application may satisfy: -4.0<R9 / R8<0, where R8 is the radius of curvature of the image side surface of the fourth lens, and R9 is the radius of curvature of the object side surface of the fifth lens. Satisfying -4.0<R9 / R8<0 can effectively balance the on-axis aberrations generated by the camera lens.

[0061] In an exemplary embodiment, the camera lens according to the present application may satisfy: 3≤f / R10≤5.5, where f is the total effective focal length of the camera lens, and R10 is the radius of curvature of the image side surface of the fifth lens. More specifically, f and R10 may further satisfy: 3≤f / R10≤5.4. Satisfying 3≤f / R10≤5.5 can reduce the size of optical distortion and ensure that the camera lens has good imaging quality.

[0062] In an exemplary embodiment, the camera lens according to the present application may satisfy: 1.1≤DT41 / DT32<1.5, wherein DT41 is the maximum effective radius of the object side of the fourth lens, and DT32 is the maximum effective radius of the image side of the third lens. Satisfying 1.1≤DT41 / DT32<1.5 can reduce the size of the lens, realize miniaturization of the lens, and improve the resolution of the lens.

[0063] In an exemplary embodiment, the camera lens according to the present application further includes an aperture provided between the object side and the first lens. Optionally, the camera 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.

[0064] The camera 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 optical power, surface shape, center thickness of each lens, and axial spacing between each lens, etc., the incident light can be effectively converged, the total length of the camera lens can be reduced, and the processability of the camera lens can be improved, so that the structure of each lens is more compact, the camera lens is more conducive to production and processing, and has higher practicality. Through the above configuration, the camera lens according to the exemplary embodiment of the present application can have characteristics such as a small head and good imaging quality, which can meet the requirements of highly integrated electronic devices for small head cameras.

[0065] 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 fifth lens is an aspherical mirror surface. The characteristic of the aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens 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.

[0066] 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 camera 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 embodiment, the camera lens is not limited to including five lenses. If necessary, the camera lens may also include other numbers of lenses.

[0067] Specific embodiments of the imaging lens applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0068] Example 1

[0069] The following reference Figures 1 to 2D An imaging lens according to Embodiment 1 of the present application is described. Figure 1 A schematic structural diagram of a camera lens according to Embodiment 1 of the present application is shown.

[0070] like Figure 1 As shown, the camera 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.

[0071] 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.

[0072] Table 1 shows basic parameters of the camera lens of Example 1, wherein the units of the curvature radius, thickness / distance and focal length are all millimeters (mm).

[0073]

[0074] Table 1

[0075] In this example, the total effective focal length f of the camera lens is 3.03 mm, the total length TTL of the camera lens (i.e., the distance from the object side surface S1 of the first lens E1 to the imaging surface S13 of the camera lens on the optical axis) is 3.96 mm, and the maximum field of view FOV of the camera lens is 83.3°.

[0076] 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:

[0077]

[0078] 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 .

[0079]

[0080]

[0081] Table 2

[0082] Figure 2A The axial chromatic aberration curve of the imaging lens of Example 1 is shown, which indicates the deviation of the focusing point of light rays of different wavelengths after passing through the lens. Figure 2B The astigmatism curve of the imaging lens of Example 1 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 2C The distortion curve of the camera lens of Example 1 is shown, which indicates the distortion magnitude values ​​corresponding to different image heights. Figure 2D The magnification chromatic aberration curve of the camera lens of Example 1 is shown, which indicates 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 camera lens provided in Example 1 can achieve good imaging quality.

[0083] Example 2

[0084] The following reference Figures 3 to 4D The camera 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 a camera lens according to Embodiment 2 of the present application is shown.

[0085] like Figure 3 As shown, the camera 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.

[0086] 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 concave, and its image side surface S6 is convex. 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.

[0087] In this example, the total effective focal length f of the camera lens is 3.52 mm, the total length TTL of the camera lens is 4.28 mm, and the maximum field of view FOV of the camera lens is 79.4°.

[0088] Table 3 shows the basic parameters of the camera 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.

[0089]

[0090]

[0091] Table 3

[0092] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 6.1831E-02 8.8917E-02 -7.1039E-01 3.6476E+00 -1.0630E+01 1.8480E+01 -1.8561E+01 9.8072E+00 -2.0121E+00 S2 -9.0805E-02 5.1396E-02 -9.9108E-02 -1.2038E+00 8.4830E+00 -2.3138E+01 3.3912E+01 -2.5532E+01 7.5927E+00 S3 -1.6372E-01 3.1252E-01 -1.4710E+00 5.4220E+00 -1.2695E+01 1.9874E+01 -1.8902E+01 9.7719E+00 -2.3183E+00 S4 -1.1913E-01 4.6095E-01 -2.0101E+00 7.3910E+00 -1.8260E+01 3.0172E+01 -3.2039E+01 2.0427E+01 -6.0732E+00 S5 -2.2843E-01 5.3479E-01 -3.7288E+00 1.7759E+01 -5.5200E+01 1.0810E+02 -1.2864E+02 8.4362E+01 -2.2861E+01 S6 -2.4166E-01 1.2822E-01 -2.7542E-01 6.7862E-01 -1.2759E+00 1.3842E+00 -7.1910E-01 4.5805E-02 8.0368E-02 S7 -6.4303E-02 5.8230E-02 -1.3192E-01 2.0582E-01 -1.9404E-01 1.1044E-01 -3.9529E-02 8.3747E-03 -7.9240E-04 S8 -8.1219E-02 1.9540E-01 -3.4449E-01 4.2766E-01 -3.2534E-01 1.4760E-01 -3.9178E-02 5.6365E-03 -3.4057E-04 S9 -4.2871E-01 8.1209E-02 2.2560E-01 -2.5820E-01 1.4222E-01 -4.5113E-02 8.2614E-03 -8.0381E-04 3.1701E-05 S10 -2.7638E-01 2.0272E-01 -1.0117E-01 3.4256E-02 -7.9198E-03 1.2123E-03 -1.1541E-04 6.0258E-06 -1.2081E-07

[0093] Table 4

[0094] Figure 4A The axial chromatic aberration curve of the imaging lens of Example 2 is shown, which indicates the deviation of light of different wavelengths from the focal point behind the lens. Figure 4B The astigmatism curve of the imaging lens of Example 2 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 4C The distortion curve of the camera lens of Example 2 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Figure 4D The chromatic aberration curve of the camera lens of Example 2 is shown, which indicates 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 camera lens provided in Example 2 can achieve good imaging quality.

[0095] Example 3

[0096] The following reference Figures 5 to 6D The imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of a camera lens according to Embodiment 3 of the present application is shown.

[0097] like Figure 5 As shown, the camera 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.

[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 negative focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is convex, and its image side surface S8 is 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.

[0099] In this example, the total effective focal length f of the camera lens is 4.62 mm, the total length TTL of the camera lens is 5.71 mm, and the maximum field of view FOV of the camera lens is 69.2°.

[0100] Table 5 shows the basic parameter table of the camera 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.

[0101]

[0102] Table 5

[0103] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 4.8738E-02 3.7096E-03 2.1275E-02 -7.5559E-02 1.9404E-01 -2.9561E-01 2.6824E-01 -1.3116E-01 2.6541E-02 S2 -7.2886E-02 1.4917E-01 4.1023E-02 -1.1509E+00 2.9233E+00 -2.9743E+00 1.1427E-01 2.1903E+00 -1.2554E+00 S3 -1.3279E-01 2.3734E-01 -1.3446E-01 -8.3778E-01 2.5062E+00 -2.8189E+00 6.5185E-01 1.3568E+00 -8.9361E-01 S4 -9.0635E-02 1.2128E-01 1.7291E-02 -8.4504E-01 2.6025E+00 -4.1449E+00 3.8280E+00 -1.8900E+00 3.7948E-01 S5 -1.2231E-01 1.6398E-02 -6.2043E-02 2.2914E-02 -5.3165E-02 1.7100E-01 -2.8250E-01 2.5288E-01 -7.8875E-02 S6 -1.8313E-01 2.2285E-02 -7.3052E-02 9.3180E-02 -5.4716E-02 3.8820E-02 -3.6094E-02 1.9342E-02 -3.8349E-03 S7 -9.9242E-02 -1.1855E-02 4.6404E-02 -1.4814E-01 2.8259E-01 -2.4228E-01 1.0398E-01 -2.1750E-02 1.6890E-03 S8 -6.7548E-02 5.1655E-02 -3.7376E-02 2.4683E-02 -9.4259E-03 2.6823E-03 -7.7188E-04 1.6396E-04 -1.5113E-05 S9 -3.0645E-01 2.1657E-01 -1.3780E-01 7.3642E-02 -2.8852E-02 7.5874E-03 -1.2303E-03 1.0952E-04 -4.0661E-06 S10 -1.2555E-01 8.0767E-02 -4.0035E-02 1.4280E-02 -3.5474E-03 5.8971E-04 -6.2144E-05 3.7418E-06 -9.7750E-08

[0104] Table 6

[0105] Fig. 6A The axial chromatic aberration curve of the imaging lens of Example 3 is shown, which indicates the deviation of light rays of different wavelengths from the focal point behind the lens. Figure 6B The astigmatism curve of the imaging lens of Example 3 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 6C The distortion curve of the camera lens of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.6D The chromatic aberration curve of the camera lens of Example 3 is shown, which indicates 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 camera lens provided in Example 3 can achieve good imaging quality.

[0106] Example 4

[0107] The following reference Figures 7 to 8D An imaging lens according to Embodiment 4 of the present application is described. Figure 7 A schematic structural diagram of a camera lens according to Embodiment 4 of the present application is shown.

[0108] like Figure 7 As shown, the camera 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.

[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 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.

[0110] In this example, the total effective focal length f of the camera lens is 3.09 mm, the total length TTL of the camera lens is 3.88 mm, and the maximum field of view FOV of the camera lens is 81.6°.

[0111] Table 7 shows the basic parameters of the camera 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.

[0112]

[0113] Table 7

[0114]

[0115]

[0116] Table 8

[0117] Fig. 8A The axial chromatic aberration curve of the 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 imaging lens of Example 4 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 8C The distortion curve of the camera 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 camera lens of Example 4 is shown, which indicates the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 8A to FIG. 8DIt can be seen that the camera lens provided in Example 4 can achieve good imaging quality.

[0118] Example 5

[0119] The following reference Figures 9 to 10D An imaging lens according to Embodiment 5 of the present application is described. Fig. 9 A schematic structural diagram of a camera lens according to embodiment 5 of the present application is shown.

[0120] like Fig. 9 As shown, the camera 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.

[0121] 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 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.

[0122] In this example, the total effective focal length f of the camera lens is 3.93 mm, the total length TTL of the camera lens is 4.68 mm, and the maximum field of view FOV of the camera lens is 77.3°.

[0123] Table 9 shows the basic parameters of the camera 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.

[0124]

[0125]

[0126] Table 9

[0127] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 6.4339E-02 -1.6942E-02 2.0761E-01 -6.4786E-01 1.1573E+00 -9.6214E-01 5.3292E-02 5.2144E-01 -2.7226E-01 S2 -9.4529E-02 2.0519E-01 -8.1593E-01 2.5949E+00 -6.5445E+00 1.1987E+01 -1.4066E+01 1.0885E+01 -4.4951E+00 S3 -1.4938E-01 5.8998E-01 -2.2120E+00 8.3470E+00 -2.5122E+01 5.1645E+01 -6.5396E+01 4.6991E+01 -1.5111E+01 S4 -1.1902E-01 5.5573E-01 -1.7244E+00 6.0404E+00 -1.7304E+01 3.4423E+01 -4.2956E+01 3.0746E+01 -9.7233E+00 S5 -2.2005E-01 2.3771E-01 -1.3714E+00 6.2641E+00 -2.0294E+01 4.2122E+01 -5.3898E+01 3.8673E+01 -1.1651E+01 S6 -1.8166E-01 3.7089E-02 -1.7620E-01 5.1863E-01 -1.1697E+00 1.6881E+00 -1.4951E+00 7.4374E-01 -1.4974E-01 S7 -1.1514E-01 -2.2209E-03 -1.5076E-01 3.5658E-01 -4.6634E-01 3.4888E-01 -1.1912E-01 8.4557E-03 2.2231E-03 S8 -7.0094E-02 4.7777E-02 -1.6090E-01 2.8191E-01 -2.9325E-01 1.8704E-01 -6.6025E-02 1.1103E-02 -6.1249E-04 S9 -4.1766E-01 1.8101E-01 8.9336E-02 -1.9305E-01 1.4743E-01 -6.5414E-02 1.7326E-02 -2.5163E-03 1.5347E-04 S10 -2.4189E-01 1.9087E-01 -1.0738E-01 4.3011E-02 -1.2120E-02 2.3247E-03 -2.8846E-04 2.0898E-05 -6.7038E-07

[0128] Table 10

[0129] Fig. 10A The axial chromatic aberration curve of the imaging lens of Example 5 is shown, which indicates the deviation of the focusing point of light rays of different wavelengths after passing through the lens. Fig. 10B The astigmatism curve of the imaging lens of Example 5 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 10C The distortion curve of the camera lens of Example 5 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig. 10D The chromatic aberration curve of the camera lens of Example 5 is shown, which indicates 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 camera lens provided in Example 5 can achieve good imaging quality.

[0130] Example 6

[0131] The following reference Figures 11 to 12D The imaging lens according to Embodiment 6 of the present application is described. Fig.11 A schematic structural diagram of a camera lens according to Example 6 of the present application is shown.

[0132] like Fig.11 As shown, the camera 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.

[0133] 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 concave, and its image side surface S6 is convex. 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.

[0134] In this example, the total effective focal length f of the camera lens is 3.52 mm, the total length TTL of the camera lens is 4.29 mm, and the maximum field of view FOV of the camera lens is 79.0°.

[0135] Table 11 shows the basic parameters of the camera 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.

[0136]

[0137] Table 11

[0138] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 6.6580E-02 2.1766E-02 -2.4877E-01 1.7938E+00 -6.5051E+00 1.4130E+01 -1.8200E+01 1.2976E+01 -3.9141E+00 S2 -9.5752E-02 2.8434E-01 -2.5579E+00 1.2270E+01 -3.7224E+01 7.5135E+01 -9.5140E+01 6.8462E+01 -2.1436E+01 S3 -1.6492E-01 4.2384E-01 -2.4337E+00 9.0207E+00 -2.0653E+01 3.1209E+01 -2.8112E+01 1.2302E+01 -1.6113E+00 S4 -1.0982E-01 3.3859E-01 -1.0428E+00 2.2919E+00 -2.0214E+00 -1.2028E+00 4.6786E+00 -3.7210E+00 7.8277E-01 S5 -2.2087E-01 4.0620E-01 -2.7049E+00 1.3226E+01 -4.3435E+01 8.9646E+01 -1.1187E+02 7.6590E+01 -2.1518E+01 S6 -2.4705E-01 1.5228E-01 -2.7472E-01 4.2489E-01 -4.2039E-01 -1.0452E-01 7.5901E-01 -7.4575E-01 2.5797E-01 S7 -6.8915E-02 7.0128E-02 -1.7290E-01 2.9307E-01 -2.9523E-01 1.7834E-01 -6.6850E-02 1.4606E-02 -1.4129E-03 S8 -8.2122E-02 2.0025E-01 -3.8445E-01 5.1601E-01 -4.1519E-01 1.9718E-01 -5.4603E-02 8.1930E-03 -5.1687E-04 S9 -4.1126E-01 2.7307E-02 2.8167E-01 -2.9514E-01 1.6107E-01 -5.2017E-02 9.8342E-03 -9.9663E-04 4.1258E-05 S10 -2.8806E-01 2.1254E-01 -1.0838E-01 3.7685E-02 -8.8754E-03 1.3628E-03 -1.2701E-04 6.2215E-06 -1.0349E-07

[0139] Table 12

[0140] Fig. 12A The axial chromatic aberration curve of the imaging lens of Example 6 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Fig. 12B The astigmatism curve of the imaging lens of Example 6 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 12C The distortion curve of the camera lens of Example 6 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.12D The chromatic aberration curve of the camera lens of Example 6 is shown, which indicates 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 camera lens provided in Example 6 can achieve good imaging quality.

[0141] Example 7

[0142] The following reference Figures 13 to 14D An imaging lens according to Embodiment 7 of the present application is described. Fig.13 A schematic structural diagram of a camera lens according to Embodiment 7 of the present application is shown.

[0143] like Fig.13 As shown, the camera 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.

[0144] 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.

[0145] In this example, the total effective focal length f of the camera lens is 3.33 mm, the total length TTL of the camera lens is 4.07 mm, and the maximum field of view FOV of the camera lens is 78.9°.

[0146] Table 13 shows the basic parameter table of the camera 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.

[0147]

[0148] Table 13

[0149]

[0150]

[0151] Table 14

[0152] Fig.14A The axial chromatic aberration curve of the 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 imaging lens of Example 7 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 14C The distortion curve of the camera 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 camera lens of Example 7 is shown, which indicates 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 camera lens provided in Example 7 can achieve good imaging quality.

[0153] Example 8

[0154] The following reference Figures 15 to 16D An imaging lens according to Embodiment 8 of the present application is described. Fig.15 A schematic structural diagram of a camera lens according to Example 8 of the present application is shown.

[0155] like Fig.15 As shown, the camera 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.

[0156] 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 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.

[0157] In this example, the total effective focal length f of the camera lens is 3.82 mm, the total length TTL of the camera lens is 4.47 mm, and the maximum field of view FOV of the camera lens is 79.4°.

[0158] Table 15 shows the basic parameter table of the camera 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.

[0159]

[0160]

[0161] Table 15

[0162] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 6.3048E-02 5.7086E-02 -3.9675E-01 1.8131E+00 -4.7491E+00 7.6705E+00 -7.3001E+00 3.7488E+00 -7.7146E-01 S2 -1.0006E-01 4.1815E-01 -2.2988E+00 6.2292E+00 -9.2398E+00 5.8744E+00 4.6007E+00 -9.8091E+00 4.3612E+00 S3 -1.7944E-01 7.4492E-01 -3.5059E+00 1.0670E+01 -2.2936E+01 3.5732E+01 -3.6043E+01 2.0491E+01 -5.1502E+00 S4 -1.4089E-01 5.1572E-01 -1.2896E+00 1.0938E+00 4.5830E+00 -1.7084E+01 2.6207E+01 -1.9708E+01 5.8262E+00 S5 -2.4259E-01 4.6138E-01 -2.6365E+00 1.1972E+01 -3.6765E+01 7.1864E+01 -8.5879E+01 5.7198E+01 -1.6083E+01 S6 -2.2960E-01 1.8569E-01 -5.0432E-01 1.1960E+00 -2.0485E+00 2.2046E+00 -1.3487E+00 3.7883E-01 -1.0144E-02 S7 -6.8024E-02 6.5889E-02 -1.2053E-01 1.4763E-01 -1.1653E-01 5.5007E-02 -1.5065E-02 2.0266E-03 -6.3584E-05 S8 -6.2350E-02 1.2606E-01 -1.7996E-01 1.8308E-01 -1.1726E-01 4.4970E-02 -9.9277E-03 1.1470E-03 -5.2349E-05 S9 -4.7976E-01 2.9570E-01 -8.9108E-02 -1.3615E-02 2.7493E-02 -1.1942E-02 2.5575E-03 -2.7856E-04 1.2351E-05 S10 -2.5462E-01 2.0117E-01 -1.1816E-01 4.9867E-02 -1.4945E-02 3.0882E-03 -4.1656E-04 3.2845E-05 -1.1406E-06

[0163] Table 16

[0164] Fig.16A The axial chromatic aberration curve of the 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 imaging lens of Example 8 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 16C The distortion curve of the camera 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 camera lens of Example 8 is shown, which indicates the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 16A to FIG. 16D It can be seen that the camera lens provided in Example 8 can achieve good imaging quality.

[0165] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 17.

[0166] Conditional / Example 1 2 3 4 5 6 7 8 EPP(mm) 0.32 0.32 0.001 0.12 0.20 0.27 0.21 0.32 fa45 / T45 4.95 5.55 4.38 5.93 3.51 5.54 4.15 5.48 EPP / DT11 0.44 0.40 0.001 0.17 0.23 0.33 0.28 0.37 f345 / fa23 -1.05 -0.28 -0.05 -0.68 -0.45 -0.29 -0.88 -0.24 f / R1+f / R2 2.64 3.15 2.94 3.00 3.35 3.16 3.13 3.44 f / |R6|+f / |R7| 0.16 1.59 0.14 0.39 0.73 1.52 0.18 1.12 (CT3+CT4) / (T23+T34) 1.49 1.10 2.76 1.51 1.26 1.12 1.25 0.95 (V3+V4+V5) / 3 55.99 55.99 55.99 55.99 55.99 55.99 55.99 55.99 ET23 / T23 0.25 0.16 0.51 0.38 0.37 0.24 0.48 0.20 ET3 / CT3 0.55 0.63 0.64 0.54 0.65 0.63 0.58 0.67 f2 / R4 -2.27 -2.70 -1.84 -2.37 -1.27 -2.69 -2.48 -2.83 f4 / f5 -1.08 -1.25 -1.43 -1.27 -1.67 -1.24 -1.32 -1.53 R9 / R8 -0.81 -0.05 -3.89 -1.01 -1.51 -0.08 -0.86 -0.24 f / R10 5.35 4.05 3.10 4.73 3.80 4.09 4.59 3.88 DT41 / DT32 1.25 1.44 1.12 1.29 1.22 1.44 1.23 1.44

[0167] Table 17

[0168] 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 camera lens described above.

[0169] 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. A camera 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 negative optical power, whose image side surface is concave; a third lens having positive refractive power; a fourth lens element having positive refractive power and a convex image-side surface; The fifth lens element with negative optical power has a convex object-side surface and a concave image-side surface; wherein, The number of lenses having optical power in the camera lens is five; The total effective focal length f of the camera lens, the curvature radius R1 of the object side surface of the first lens, and the curvature radius R2 of the image side surface of the first lens satisfy: 2.64≤f / R1+f / R2≤3.44; The combined focal length f345 of the third lens, the fourth lens and the fifth lens and the effective focal length fa23 of the air lens formed by the image side surface of the second lens and the object side surface of the third lens satisfy: -1.05≤fa23 / f345≤-0.05; The total effective focal length f of the camera lens, the curvature radius R6 of the image side surface of the third lens, and the curvature radius R7 of the object side surface of the fourth lens satisfy: 0.14≤f / |R6|+f / |R7|≤1.59; The effective focal length fa45 of the air lens formed by the image side surface of the fourth lens and the object side surface of the fifth lens and the spacing distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 3.5≤fa45 / T45≤5.93; The effective focal length f2 of the second lens and the curvature radius R4 of the image side surface of the second lens satisfy: -2.83≤f2 / R4≤-1.27; The effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy: -1.67≤f4 / f5≤-1.

08.

2. The imaging lens according to claim 1, wherein: A distance EPP from the aperture of the camera lens to the object side surface of the first lens on the optical axis satisfies: 0mm<EPP≤0.32mm.

3. The imaging lens according to claim 1, wherein: The maximum effective radius DT11 of the object side surface of the first lens and the distance EPP from the aperture of the camera lens to the object side surface of the first lens on the optical axis satisfy: 0<EPP / DT11≤0.

44.

4. The imaging lens according to claim 1, wherein: The center thickness CT3 of the third lens, the center thickness CT4 of the fourth lens, the spacing T23 between the second lens and the third lens on the optical axis, and the spacing T34 between the third lens and the fourth lens on the optical axis satisfy: 0.95≤(CT3+CT4) / (T23+T34)<2.

8.

5. The imaging lens according to claim 1, wherein: The Abbe number V3 of the third lens, the Abbe number V4 of the fourth lens, and the Abbe number V5 of the fifth lens satisfy: 50<(V3+V4+V5) / 3<57.

6. The imaging lens according to claim 1, wherein: A distance ET23 between edges of the second lens and the third lens and a distance T23 between the second lens and the third lens on the optical axis satisfy: 0.16≤ET23 / T23≤0.

51.

7. The imaging lens according to claim 1, wherein: The edge thickness ET3 of the third lens and the center thickness CT3 of the third lens satisfy: 0.5≤ET3 / CT3≤0.

7.

8. The imaging lens according to claim 1, wherein: A curvature radius R8 of the image-side surface of the fourth lens and a curvature radius R9 of the object-side surface of the fifth lens satisfy: -3.89≤R9 / R8≤-0.

08.

9. The imaging lens according to claim 1, wherein: The total effective focal length f of the camera lens and the curvature radius R10 of the image side surface of the fifth lens satisfy: 3.10≤f / R10≤5.

35.

10. The imaging lens according to claim 1, wherein: The maximum effective radius DT41 of the object-side surface of the fourth lens and the maximum effective radius DT32 of the image-side surface of the third lens satisfy: 1.1≤DT41 / DT32≤1.44.

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