Camera lens set

Abstract

The present application discloses a camera lens group, which includes, in order from the object side to the image side along the optical axis: a first lens with optical power, whose image side surface is concave; an aperture; a second lens with positive optical power, whose image side surface is convex; a third lens with optical power, whose image side surface is concave; a fourth lens with positive optical power, whose image side surface is convex; a fifth lens with negative optical power, whose object side surface is convex and image side surface is concave. The maximum effective radius DT11 of the object side surface of the first lens and half of the maximum field of view Semi‑FOV of the camera lens group satisfy: 2.50mm ‑1 <tan 2 (Semi‑FOV) / DT11<5.00mm ‑1 .

Description

Technical Field

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

[0002] With the continuous development of photography technology for portable electronic products such as smartphones, the camera modules of camera lens groups have gradually evolved from single-camera and dual-camera to triple-camera and quad-camera, among which at least one ultra-wide-angle lens has become the mainstream trend. As the number of lenses increases, the camera module requires a smaller lens on the head to control the module area and leave room for other modules of the mobile terminal. Summary of the invention

[0003] The present application provides a camera lens group, which includes, in order from the object side to the image side along the optical axis: a first lens with optical focal length, whose image side surface is a concave surface; an aperture; a second lens with positive optical focal length, whose image side surface is a convex surface; a third lens with optical focal length, whose image side surface is a concave surface; a fourth lens with positive optical focal length, whose image side surface is a convex surface; and a fifth lens with negative optical focal length, whose object side surface is a convex surface and image side surface is a concave surface.

[0004] In one embodiment, the maximum effective radius DT11 of the object side of the first lens and half of the maximum field of view of the camera lens assembly Semi-FOV can satisfy: 2.50mm -1 <tan 2 (Semi-FOV) / DT11<5.00mm -1 .

[0005] In one embodiment, the distance TTL from the object side of the first lens to the imaging plane of the camera lens group on the optical axis, half the diagonal length of the effective pixel area on the imaging plane of the camera lens group ImgH, and the total effective focal length f of the camera lens group may satisfy: 2.50mm<TTL / ImgH×f<4.00mm.

[0006] In one embodiment, the effective focal length f2 of the second lens and the total effective focal length f of the camera lens assembly may satisfy: 0.50<f2 / f<2.00.

[0007] In one embodiment, a curvature radius R9 of the object-side surface of the fifth lens and a curvature radius R10 of the image-side surface of the fifth lens may satisfy: 1.50<R9 / R10<2.50.

[0008] In one embodiment, a center thickness CT3 of the third lens on the optical axis and a spacing distance T34 between the third lens and the fourth lens on the optical axis may satisfy: 1.00<CT3 / T34<2.50.

[0009] In one embodiment, a radius of curvature R6 of the image-side surface of the third lens and a center thickness CT3 of the third lens on the optical axis may satisfy: 7.00<R6 / CT3<11.00.

[0010] In one embodiment, the distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens on the optical axis and the distance SAG51 from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis may satisfy: 1.00<(SAG42+SAG51) / (SAG42-SAG51)<4.00.

[0011] In one embodiment, a distance TD from the object side surface of the first lens to the image side surface of the fifth lens on the optical axis and a sum ΣAT of the spacing distances between any two adjacent lenses from the first lens to the fifth lens on the optical axis may satisfy: ΣAT / TD≤0.30.

[0012] In one embodiment, the maximum effective radius DT11 of the object-side surface of the first lens and the maximum effective radius DT12 of the image-side surface of the first lens may satisfy: 4.50<(DT11+DT12) / (DT11-DT12)<8.00.

[0013] In one embodiment, a curvature radius R6 of the image-side surface of the third lens and a curvature radius R9 of the object-side surface of the fifth lens may satisfy: 2.00<(R6+R9) / (R6-R9)<5.50.

[0014] In one embodiment, half of the maximum field of view (Semi-FOV) of the camera lens assembly may satisfy: 2.00 < tan 2 (Semi-FOV)<4.00.

[0015] The present application adopts five lenses, and by reasonably adjusting the aperture of the first lens, reasonably allocating the optical focal length, surface shape, center thickness of each lens and axial spacing between each lens, the above-mentioned camera lens group has at least one beneficial effect such as small head, large field of view, and high imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 A schematic structural diagram of a camera lens assembly according to Embodiment 1 of the present application is shown;

[0018] 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;

[0019] Figure 3 A schematic structural diagram of a camera lens assembly according to Embodiment 2 of the present application is shown;

[0020] FIG. 4A to FIG. 4D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 2 are respectively shown;

[0021] Figure 5 A schematic structural diagram of a camera lens assembly according to Embodiment 3 of the present application is shown;

[0022] 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;

[0023] Figure 7 A schematic structural diagram of a camera lens assembly according to Embodiment 4 of the present application is shown;

[0024] 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;

[0025] Fig. 9 A schematic structural diagram of a camera lens assembly according to Embodiment 5 of the present application is shown;

[0026] 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;

[0027] Fig.11 A schematic structural diagram of a camera lens assembly according to Embodiment 6 of the present application is shown;

[0028] FIG. 12A to FIG. 12D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 6 are respectively shown;

[0029] Fig.13 A schematic structural diagram of a camera lens assembly according to Embodiment 7 of the present application is shown;

[0030] FIG. 14A to FIG. 14D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens set of Example 7 are respectively shown;

[0031] Fig.15 A schematic structural diagram of a camera lens assembly according to Embodiment 8 of the present application is shown;

[0032] FIG. 16A to FIG. 16DThe axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the camera lens group of Example 8 are respectively shown. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] The features, principles and other aspects of the present application are described in detail below.

[0041] The camera lens set 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.

[0042] In an exemplary embodiment, the first lens has optical power, and its image side surface may be concave; the second lens may have positive optical power, and its image side surface may be convex; the third lens has optical power, and its image side surface may be concave; the fourth lens may have positive optical power, and its image side surface may be convex; and the fifth lens may have negative optical power, and its object side surface may be convex and its image side surface may be concave.

[0043] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 2.50 mm -1 <tan 2 (Semi-FOV) / DT11<5.00mm -1 , where DT11 is the maximum effective radius of the object side of the first lens, and Semi-FOV is half of the maximum field of view of the camera lens group. -1 <tan 2 (semi-FOV) / DT11<5.00mm -1 , while ensuring that the camera lens group has an ultra-large field of view, the radius of the object side of the first lens can be reduced, thereby reducing the window area of ​​the camera lens group and achieving an ultra-small head of the camera lens group.

[0044] In an exemplary embodiment, the camera lens group according to the present application may satisfy: 2.50mm<TTL / ImgH×f<4.00mm, wherein TTL is the distance on the optical axis from the object side of the first lens to the imaging surface of the camera lens group, ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the camera lens group, and f is the total effective focal length of the camera lens group. More specifically, TTL, ImgH and f may further satisfy: 2.50mm<TTL / ImgH×f<3.50mm. Satisfying 2.50mm<TTL / ImgH×f<4.00mm can effectively reduce the overall size of the camera lens group and realize the miniaturization of the camera lens group; it can also effectively control the focal length of the camera lens group to achieve clear imaging of both near and far views.

[0045] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 0.50<f2 / f<2.00, where f2 is the effective focal length of the second lens, and f is the total effective focal length of the camera lens assembly. More specifically, f2 and f may further satisfy: 0.80<f2 / f<1.80. By satisfying 0.50<f2 / f<2.00, the on-axis spherical aberration generated by the second lens may be constrained within a reasonable range, thereby ensuring the imaging quality of the on-axis field of view.

[0046] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 1.50<R9 / R10<2.50, where R9 is the radius of curvature of the object side surface of the fifth lens, and R10 is the radius of curvature of the image side surface of the fifth lens. Satisfying 1.50<R9 / R10<2.50 can ensure that the surface of the fifth lens of the camera lens assembly is smooth, which is conducive to the molding and manufacturing of the fifth lens with a larger aperture.

[0047] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 1.00<CT3 / T34<2.50, wherein CT3 is the center thickness of the third lens on the optical axis, and T34 is the spacing distance between the third lens and the fourth lens on the optical axis. More specifically, CT3 and T34 may further satisfy: 1.20<CT3 / T34<2.20. Satisfying 1.00<CT3 / T34<2.50 can effectively control the field curvature balance of the camera lens assembly, so that the camera lens assembly has a reasonable field curvature.

[0048] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 7.00<R6 / CT3<11.00, where R6 is the radius of curvature of the image side surface of the third lens, and CT3 is the center thickness of the third lens on the optical axis. Satisfying 7.00<R6 / CT3<11.00 can help ensure the processing, molding and assembly of the third lens, so that the camera lens assembly obtains good imaging quality and avoids problems such as difficulty in molding the surface of the third lens and obvious deformation after assembly.

[0049] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 1.00<(SAG42+SAG51) / (SAG42-SAG51)<4.00, wherein SAG42 is the distance 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 SAG51 is the distance from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis. Satisfying 1.00<(SAG42+SAG51) / (SAG42-SAG51)<4.00 can help ensure the processing and molding of the fourth lens and the fifth lens, so that the camera lens assembly can obtain good imaging effects.

[0050] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: ΣAT / TD≤0.30, wherein TD is the distance on the optical axis from the object side of the first lens to the image side of the fifth lens, and ΣAT is the sum of the spacing distances between any two adjacent lenses from the first lens to the fifth lens on the optical axis. More specifically, ΣAT and TD may further satisfy: 0.15≤ΣAT / TD≤0.30. Satisfying ΣAT / TD≤0.30 can reasonably control the spacing distances between the surfaces of the lenses, avoid excessive light deflection, and help reduce the difficulty of processing the camera lens assembly.

[0051] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 4.50<(DT11+DT12) / (DT11-DT12)<8.00, wherein DT11 is the maximum effective radius of the object side of the first lens, and DT12 is the maximum effective radius of the image side of the first lens. Satisfying 4.50<(DT11+DT12) / (DT11-DT12)<8.00 can not only help reduce the size of the front end of the lens, but also reasonably limit the range of incident light, eliminate light with poor edge quality, reduce off-axis aberrations, and effectively improve the resolution of the camera lens assembly.

[0052] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 2.00<(R6+R9) / (R6-R9)<5.50, where R6 is the radius of curvature of the image side surface of the third lens, and R9 is the radius of curvature of the object side surface of the fifth lens. When 2.00<(R6+R9) / (R6-R9)<5.50 is satisfied, the optical power of the third lens and the fifth lens of the camera lens assembly can be reasonably allocated, thereby effectively controlling the aberration correction.

[0053] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 2.00<tan 2(Semi-FOV)<4.00, where Semi-FOV is half of the maximum field of view of the camera lens group. Satisfy 2.00<tan 2 (Semi-FOV)<4.00, the camera lens group has a wide range of scene shooting capabilities up to 125.4°, which can effectively show the momentum of large scenes and open pictures. Compared with conventional lenses with small field of view, it can better emphasize the foreground and highlight the contrast between near and far, increasing the spatial depth of the shooting picture.

[0054] In an exemplary embodiment, the camera lens assembly according to the present application further includes an aperture disposed between the first lens and the second lens. Optionally, the camera lens assembly may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the imaging surface.

[0055] The camera lens group according to the above-mentioned embodiment of the present application can use multiple lenses, such as the five lenses mentioned 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 has the characteristics of ultra-small head, ultra-large field of view, good imaging quality, etc., which can well meet the use requirements of various portable electronic products in camera scenes.

[0056] 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 that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens 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.

[0057] However, it should be understood by those skilled in the art that, without departing from the technical solution claimed in the present application, the number of lenses constituting the camera lens group 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 camera lens group is not limited to including five lenses. If necessary, the camera lens group may also include other numbers of lenses.

[0058] Specific embodiments of the camera lens assembly applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0059] Example 1

[0060] The following reference Figures 1 to 2D A camera lens assembly according to Embodiment 1 of the present application is described. Figure 1 A schematic structural diagram of a camera lens assembly according to Embodiment 1 of the present application is shown.

[0061] like Figure 1 As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0062] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical 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.

[0063] Table 1 shows a basic parameter table of the camera lens set of Example 1, wherein the units of the curvature radius, thickness / distance and focal length are all millimeters (mm).

[0064]

[0065]

[0066] Table 1

[0067] In this example, the total effective focal length f of the camera lens group is 1.57 mm, the total length TTL of the camera lens group (i.e., the distance on the optical axis from the object side surface S1 of the first lens E1 to the imaging surface S13 of the camera lens group) is 4.03 mm, half of the diagonal length of the effective pixel area on the imaging surface S13 of the camera lens group ImgH is 2.42 mm, half of the maximum field of view angle Semi-FOV of the camera lens group is 62.7°, and the aperture value Fno of the camera lens group is 2.21.

[0068] 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:

[0069]

[0070] 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 .

[0071] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 5.7819E-01 -1.5481E+00 1.0289E+01 -5.4219E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 1.0873E+00 -7.4310E+00 1.4317E+02 -1.6523E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -1.0220E-01 6.5403E-01 -2.7337E+01 3.9542E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -3.6157E-01 -2.8362E-01 7.2043E+00 -6.6964E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -6.0152E-01 -1.2462E-01 1.2661E+01 -9.8588E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -3.7513E-01 -5.9614E-01 7.6476E+00 -3.3858E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 2.5301E-01 -6.8245E-01 1.1150E+00 1.6743E+00 -1.1408E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 7.8637E-02 1.1368E-01 -3.6799E-01 1.9434E-01 1.0611E+00 -2.5347E+00 2.5960E+00 -1.2818E+00 2.4294E-01 S9 -6.6706E-01 7.3875E-01 -9.5502E-01 1.0480E+00 -8.4283E-01 4.2344E-01 -1.1756E-01 1.6017E-02 -8.8994E-04 S10 -3.8289E-01 4.5401E-01 -4.3503E-01 3.1060E-01 -1.5772E-01 5.4343E-02 -1.1964E-02 1.5101E-03 -8.2792E-05

[0072] Table 2

[0073] Figure 2A The axial chromatic aberration curve of the camera lens set of Example 1 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Figure 2B The astigmatism curve of the imaging lens set 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 assembly of Example 1 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Figure 2D The magnification chromatic aberration curve of the camera lens set 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 camera lens assembly provided in Example 1 can achieve good imaging quality.

[0074] Example 2

[0075] The following reference Figures 3 to 4D A camera lens assembly 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 assembly according to Embodiment 2 of the present application is shown.

[0076] like Figure 3As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0077] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive focal power, and its object side surface S3 is concave, and its image side surface S4 is convex. The third lens E3 has negative 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.

[0078] In this example, the total effective focal length f of the camera lens group is 1.85 mm, the total length TTL of the camera lens group is 3.97 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the camera lens group is 2.42 mm, half of the maximum field of view angle Semi-FOV of the camera lens group is 55.0°, and the aperture value Fno of the camera lens group is 2.21.

[0079] Table 3 shows the basic parameters of the camera lens set 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.

[0080]

[0081] Table 3

[0082] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 4.2192E-01 -9.5142E-01 9.5061E+00 -5.2322E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 9.8218E-01 -8.1986E+00 1.4770E+02 -1.6692E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -6.6104E-02 4.6498E-01 -2.4717E+01 3.8852E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -3.2819E-01 -3.2003E-01 7.0889E+00 -6.7238E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -5.7563E-01 -1.6244E-01 1.2420E+01 -9.8509E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -4.1222E-01 -6.3032E-01 7.6492E+00 -3.3883E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 2.5265E-01 -6.9243E-01 1.1235E+00 1.7092E+00 -1.1446E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 9.4045E-02 8.2124E-02 -3.6996E-01 1.9795E-01 1.0616E+00 -2.5368E+00 2.6002E+00 -1.2816E+00 2.4294E-01 S9 -6.4859E-01 7.5130E-01 -9.5354E-01 1.0469E+00 -8.4363E-01 4.2312E-01 -1.1762E-01 1.6043E-02 -8.5023E-04 S10 -3.7453E-01 4.5559E-01 -4.3796E-01 3.1062E-01 -1.5763E-01 5.4362E-02 -1.1962E-02 1.5098E-03 -8.3053E-05

[0083] Table 4

[0084] Figure 4A The axial chromatic aberration curve of the camera lens set 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 imaging lens set 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 assembly of Example 2 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Figure 4D The magnification chromatic aberration curve of the camera lens set 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 4DIt can be seen that the camera lens set provided in Example 2 can achieve good imaging quality.

[0085] Example 3

[0086] The following reference Figures 5 to 6D A camera lens set according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of a camera lens assembly according to Embodiment 3 of the present application is shown.

[0087] like Figure 5 As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0088] The first lens E1 has negative optical power, and its object side surface S1 is concave, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical 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.

[0089] In this example, the total effective focal length f of the camera lens group is 1.75 mm, the total length TTL of the camera lens group is 4.15 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the camera lens group is 2.42 mm, half of the maximum field of view angle Semi-FOV of the camera lens group is 55.1°, and the aperture value Fno of the camera lens group is 2.21.

[0090] Table 5 shows the basic parameters of the camera lens set 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-mentioned Example 1.

[0091]

[0092]

[0093] Table 5

[0094] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 7.5623E-01 -1.8247E+00 1.0210E+01 -5.3948E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 1.3458E+00 -7.4870E+00 1.3963E+02 -1.6427E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -4.2150E-02 1.1310E+00 -3.1060E+01 4.0650E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -3.5358E-01 -3.8734E-01 7.2384E+00 -6.6547E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -6.2481E-01 -2.1485E-01 1.2688E+01 -9.8233E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -4.0767E-01 -5.9259E-01 7.6564E+00 -3.3863E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 2.7367E-01 -6.6445E-01 1.1138E+00 1.6613E+00 -1.1393E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 9.0218E-02 1.0356E-01 -3.6943E-01 1.9890E-01 1.0672E+00 -2.5289E+00 2.5939E+00 -1.2818E+00 2.4294E-01 S9 -6.8223E-01 7.3559E-01 -9.5278E-01 1.0481E+00 -8.4316E-01 4.2330E-01 -1.1758E-01 1.6041E-02 -8.6593E-04 S10 -3.8951E-01 4.4948E-01 -4.3391E-01 3.1091E-01 -1.5772E-01 5.4332E-02 -1.1967E-02 1.5098E-03 -8.2684E-05

[0095] Table 6

[0096] Fig. 6A The axial chromatic aberration curve of the camera lens set of Example 3 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Figure 6B The astigmatism curve of the imaging lens set 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 assembly of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.6D The magnification chromatic aberration curve of the camera lens set 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 camera lens set provided in Example 3 can achieve good imaging quality.

[0097] Example 4

[0098] The following reference Figures 7 to 8D A camera lens set according to Embodiment 4 of the present application is described. Figure 7 A schematic structural diagram of a camera lens assembly according to Embodiment 4 of the present application is shown.

[0099] like Figure 7 As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0100] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is concave, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical 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.

[0101] In this example, the total effective focal length f of the camera lens group is 1.91 mm, the total length TTL of the camera lens group is 4.28 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the camera lens group is 2.42 mm, half of the maximum field of view Semi-FOV of the camera lens group is 56.3°, and the aperture value Fno of the camera lens group is 2.21.

[0102] Table 7 shows the basic parameters of the camera lens set 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-mentioned Example 1.

[0103]

[0104]

[0105] Table 7

[0106] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 6.2385E-01 -1.5131E+00 1.0314E+01 -5.4073E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 1.0907E+00 -7.3326E+00 1.4120E+02 -1.6481E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -1.2595E-01 6.5025E-01 -2.7822E+01 3.9606E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -3.6343E-01 -3.6925E-01 7.1386E+00 -6.6792E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -6.0787E-01 -9.5607E-02 1.2527E+01 -9.8348E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -3.9772E-01 -6.0042E-01 7.6792E+00 -3.3856E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 2.3711E-01 -6.5868E-01 1.1301E+00 1.6837E+00 -1.1425E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 7.0863E-02 1.1673E-01 -3.6658E-01 1.8954E-01 1.0582E+00 -2.5356E+00 2.6005E+00 -1.2818E+00 2.4294E-01 S9 -6.8830E-01 7.3206E-01 -9.5242E-01 1.0494E+00 -8.4248E-01 4.2349E-01 -1.1757E-01 1.5998E-02 -9.0115E-04 S10 -3.8848E-01 4.5513E-01 -4.3593E-01 3.1060E-01 -1.5769E-01 5.4347E-02 -1.1964E-02 1.5100E-03 -8.2811E-05

[0107] Table 8

[0108] Fig. 8A The axial chromatic aberration curve of the camera lens set of Example 4 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Figure 8B The astigmatism curve of the imaging lens set of Example 4 is shown, which indicates the meridional image curvature and the sagittal image curvature. Figure 8C The distortion curve of the camera lens assembly of Example 4 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.8D The magnification chromatic aberration curve of the camera lens set 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 camera lens set provided in Example 4 can achieve good imaging quality.

[0109] Example 5

[0110] The following reference Figures 9 to 10D A camera lens set according to Embodiment 5 of the present application is described. Fig. 9 A schematic structural diagram of a camera lens assembly according to embodiment 5 of the present application is shown.

[0111] like Fig. 9 As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0112] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has positive optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical 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.

[0113] In this example, the total effective focal length f of the camera lens group is 1.89 mm, the total length TTL of the camera lens group is 4.24 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the camera lens group is 2.42 mm, half of the maximum field of view Semi-FOV of the camera lens group is 55.6°, and the aperture value Fno of the camera lens group is 2.21.

[0114] Table 9 shows the basic parameters of the camera lens set 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.

[0115]

[0116] Table 9

[0117] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 5.4230E-01 -1.5656E+00 1.0296E+01 -5.4399E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 1.0658E+00 -7.5265E+00 1.4326E+02 -1.6565E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -8.6836E-02 5.0146E-01 -2.6684E+01 3.9490E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -7.7575E-01 3.5572E-01 6.3400E+00 -6.5830E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -6.5769E-01 -2.6411E-01 1.2565E+01 -9.8178E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -4.0689E-01 -6.3691E-01 7.7122E+00 -3.3814E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 1.6982E-01 -5.9480E-01 1.1358E+00 1.6276E+00 -1.1398E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 8.7148E-02 6.5591E-02 -3.7162E-01 2.0652E-01 1.0729E+00 -2.5320E+00 2.5848E+00 -1.2818E+00 2.4294E-01 S9 -7.1324E-01 7.3165E-01 -9.4870E-01 1.0534E+00 -8.4028E-01 4.2419E-01 -1.1762E-01 1.5777E-02 -1.0236E-03 S10 -3.8461E-01 4.5771E-01 -4.3498E-01 3.1049E-01 -1.5774E-01 5.4341E-02 -1.1964E-02 1.5103E-03 -8.2679E-05

[0118] Table 10

[0119] Fig. 10A The axial chromatic aberration curve of the camera lens set of Example 5 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Fig. 10B The astigmatism curve of the imaging lens set 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 assembly of Example 5 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig. 10D The magnification chromatic aberration curve of the camera lens set 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 camera lens set provided in Example 5 can achieve good imaging quality.

[0120] Example 6

[0121] The following reference Figures 11 to 12D A camera lens set according to Embodiment 6 of the present application is described. Fig.11 A schematic structural diagram of a camera lens assembly according to Example 6 of the present application is shown.

[0122] like Fig.11 As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0123] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical 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.

[0124] In this example, the total effective focal length f of the camera lens group is 1.84 mm, the total length TTL of the camera lens group is 4.24 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the camera lens group is 2.42 mm, half of the maximum field of view angle Semi-FOV of the camera lens group is 57.5°, and the aperture value Fno of the camera lens group is 2.21.

[0125] Table 11 shows the basic parameters of the camera lens set 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.

[0126]

[0127] Table 11

[0128] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 6.1420E-01 -1.5900E+00 1.0292E+01 -5.4282E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 1.0562E+00 -7.3970E+00 1.4080E+02 -1.6499E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -9.7567E-02 9.9789E-01 -2.9539E+01 4.0410E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -3.5309E-01 -4.8209E-01 7.5446E+00 -6.6788E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -6.1686E-01 -1.0885E-01 1.2524E+01 -9.8165E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -3.6435E-01 -5.8206E-01 7.6848E+00 -3.3877E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 2.2475E-01 -6.4829E-01 1.1281E+00 1.6601E+00 -1.1408E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 7.1529E-02 1.0872E-01 -3.6459E-01 1.9784E-01 1.0619E+00 -2.5331E+00 2.5930E+00 -1.2818E+00 2.4294E-01 S9 -6.7677E-01 7.3695E-01 -9.5304E-01 1.0491E+00 -8.4252E-01 4.2349E-01 -1.1758E-01 1.6002E-02 -9.0439E-04 S10 -3.7922E-01 4.5373E-01 -4.3554E-01 3.1053E-01 -1.5771E-01 5.4345E-02 -1.1964E-02 1.5101E-03 -8.2771E-05

[0129] Table 12

[0130] Fig. 12A The axial chromatic aberration curve of the camera lens set 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 group of Example 6 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 12CThe distortion curve of the camera lens assembly of Example 6 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.12D The magnification chromatic aberration curve of the camera lens set 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 camera lens set provided in Example 6 can achieve good imaging quality.

[0131] Example 7

[0132] The following reference Figures 13 to 14D A camera lens set according to Embodiment 7 of the present application is described. Fig.13 A schematic structural diagram of a camera lens assembly according to Example 7 of the present application is shown.

[0133] like Fig.13 As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0134] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative optical 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.

[0135] In this example, the total effective focal length f of the camera lens group is 1.85 mm, the total length TTL of the camera lens group is 4.22 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the camera lens group is 2.42 mm, half of the maximum field of view Semi-FOV of the camera lens group is 55.0°, and the aperture value Fno of the camera lens group is 2.21.

[0136] Table 13 shows the basic parameters of the camera lens set 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-mentioned Example 1.

[0137]

[0138]

[0139] Table 13

[0140] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 5.6514E-01 -1.5583E+00 1.0259E+01 -5.4338E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 1.0151E+00 -7.3260E+00 1.4106E+02 -1.6512E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -8.8040E-02 9.8741E-01 -2.9427E+01 4.0363E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -3.8170E-01 -3.0932E-01 7.0412E+00 -6.6299E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -5.9679E-01 -1.1577E-01 1.2608E+01 -9.8561E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -3.9057E-01 -6.0232E-01 7.6510E+00 -3.3893E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 2.0798E-01 -6.6067E-01 1.1342E+00 1.6735E+00 -1.1436E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 8.1463E-02 1.1549E-01 -3.6962E-01 1.9217E-01 1.0612E+00 -2.5335E+00 2.6000E+00 -1.2818E+00 2.4294E-01 S9 -6.8277E-01 7.3755E-01 -9.5113E-01 1.0499E+00 -8.4232E-01 4.2354E-01 -1.1757E-01 1.5988E-02 -9.1373E-04 S10 -3.8265E-01 4.5577E-01 -4.3606E-01 3.1066E-01 -1.5771E-01 5.4342E-02 -1.1964E-02 1.5101E-03 -8.2757E-05

[0141] Table 14

[0142] Fig.14A The axial chromatic aberration curve of the camera lens set of Example 7 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Fig. 14B The astigmatism curve of the imaging lens group of Example 7 is shown, which indicates the meridional image surface curvature and the sagittal image surface curvature. Fig. 14C The distortion curve of the camera lens assembly of Example 7 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.14D The magnification chromatic aberration curve of the camera lens set of Example 7 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 14A to FIG. 14D It can be seen that the camera lens set provided in Example 7 can achieve good imaging quality.

[0143] Example 8

[0144] The following reference Figures 15 to 16D A camera lens set according to Example 8 of the present application is described. Fig.15 A schematic structural diagram of a camera lens assembly according to Example 8 of the present application is shown.

[0145] like Fig.15 As shown, the camera lens group includes, from the object side to the image side, a first lens E1, an aperture STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a filter E6 and an imaging surface S13.

[0146] The first lens E1 has negative optical power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has positive optical power, and its object side surface S3 is convex, and its image side surface S4 is convex. The third lens E3 has negative optical power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive optical power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative optical 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.

[0147] In this example, the total effective focal length f of the camera lens group is 1.71 mm, the total length TTL of the camera lens group is 4.11 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S13 of the camera lens group is 2.42 mm, half of the maximum field of view angle Semi-FOV of the camera lens group is 59.1°, and the aperture value Fno of the camera lens group is 1.79.

[0148] Table 15 shows the basic parameters of the camera lens set 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-mentioned Example 1.

[0149]

[0150] Table 15

[0151] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 5.7474E-01 -1.5483E+00 1.0257E+01 -5.4250E+01 1.9174E+02 -4.3678E+02 6.1553E+02 -4.8934E+02 1.6611E+02 S2 1.1067E+00 -7.4557E+00 1.4201E+02 -1.6517E+03 1.2275E+04 -5.7428E+04 1.6451E+05 -2.6253E+05 1.7770E+05 S3 -1.0557E-01 8.6199E-01 -2.8389E+01 3.9880E+02 -3.6908E+03 2.1661E+04 -7.9346E+04 1.6534E+05 -1.5047E+05 S4 -3.5873E-01 -2.4665E-01 7.0152E+00 -6.6633E+01 2.9165E+02 -7.3219E+02 8.9015E+02 -1.2836E+02 -5.5493E+02 S5 -5.9592E-01 -1.0775E-01 1.2681E+01 -9.8635E+01 4.2628E+02 -1.1425E+03 1.8612E+03 -1.6728E+03 6.3390E+02 S6 -3.7689E-01 -5.9897E-01 7.6418E+00 -3.3863E+01 8.9315E+01 -1.5043E+02 1.5777E+02 -9.3431E+01 2.3802E+01 S7 2.6759E-01 -6.7796E-01 1.1188E+00 1.6807E+00 -1.1422E+01 2.3692E+01 -2.5872E+01 1.4950E+01 -3.6110E+00 S8 7.7270E-02 1.1283E-01 -3.6703E-01 1.9422E-01 1.0591E+00 -2.5369E+00 2.6002E+00 -1.2818E+00 2.4294E-01 S9 -6.5889E-01 7.4369E-01 -9.5483E-01 1.0476E+00 -8.4300E-01 4.2338E-01 -1.1757E-01 1.6017E-02 -8.7345E-04 S10 -3.7150E-01 4.5181E-01 -4.3545E-01 3.1059E-01 -1.5771E-01 5.4347E-02 -1.1963E-02 1.5102E-03 -8.2825E-05

[0152] Table 16

[0153] Fig.16A The axial chromatic aberration curve of the camera lens set 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 group of Example 8 is shown, which indicates the meridional image surface curvature and the sagittal image surface curvature. Fig. 16C The distortion curve of the camera lens set of Example 8 is shown, which represents the distortion magnitude values ​​corresponding to different field angles. Fig.16D The magnification chromatic aberration curve of the camera lens set of Example 8 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 16A to FIG. 16D It can be seen that the camera lens set provided in Example 8 can achieve good imaging quality.

[0154] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 17.

[0155] Conditional / Example 1 2 3 4 5 6 7 8 <![CDATA[tan 2 (Semi-FOV) / DT11(mm -1 )]]> 4.85 3.02 2.90 3.01 2.88 3.23 2.74 3.59 TTL / ImgH×f(mm) 2.62 3.03 3.01 3.37 3.31 3.23 3.22 2.90 f2 / f 1.07 1.60 0.93 1.03 1.52 0.90 1.01 1.12 R9 / R10 1.69 1.91 1.71 1.87 2.33 1.98 2.02 1.83 CT3 / T34 1.61 1.32 2.09 1.70 1.38 1.84 1.69 1.49 R6 / CT3 10.51 8.49 7.41 9.57 9.21 10.94 7.24 8.94 (SAG42+SAG51) / (SAG42-SAG51) 1.51 1.67 1.62 3.58 2.73 3.44 3.97 1.96 ΣAT / TD 0.23 0.19 0.23 0.29 0.24 0.30 0.26 0.25 (DT11+DT12) / (DT11-DT12) 4.94 7.43 5.68 5.55 5.63 5.05 5.49 5.95 (R6+R9) / (R6-R9) 2.13 3.13 2.42 3.08 4.04 2.52 5.29 2.89 <![CDATA[tan 2 (Semi-FOV)]]> 3.76 2.04 2.06 2.25 2.14 2.47 2.04 2.80

[0156] Table 17

[0157] 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 group described above.

[0158] 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 assembly, characterized in that: Along the optical axis from the object side to the image side, they include: A first lens having negative optical power, whose image side surface is concave; Aperture; A second lens having positive refractive power and a convex image-side surface; The third lens has a negative optical power and its image side surface is concave; a fourth lens element having positive refractive power and a convex image-side surface; and The fifth lens with negative optical power has a convex object side surface and a concave image side surface. The maximum effective radius DT11 of the object side of the first lens and half of the maximum field of view Semi-FOV of the camera lens group satisfy: 2.74 mm -1 ≤tan 2 (Semi-FOV) / DT11≤4.85mm -1 ; The effective focal length f2 of the second lens and the total effective focal length f of the camera lens group satisfy the following conditions: 0.90≤f2 / f≤1.12; The center thickness CT3 of the third lens on the optical axis and the spacing T34 between the third lens and the fourth lens on the optical axis satisfy: 1.32≤CT3 / T34≤2.09; The distance TTL from the object side of the first lens to the imaging surface of the camera lens group on the optical axis, half of the diagonal length of the effective pixel area on the imaging surface of the camera lens group ImgH and the total effective focal length f of the camera lens group satisfy the following conditions: 2.62 mm ≤ TTL / ImgH×f ≤ 3.37 mm; The curvature radius R6 of the image side surface of the third lens and the curvature radius R9 of the object side surface of the fifth lens satisfy: 2.13≤(R6+R9) / (R6-R9)≤5.29; The number of lenses having optical power in the camera lens group is five.

2. The camera lens assembly according to claim 1, characterized in that: A curvature radius R6 of the image-side surface of the third lens and a center thickness CT3 of the third lens on the optical axis satisfy: 7.24≤R6 / CT3≤10.

94.

3. The camera lens assembly according to claim 1, characterized in that: A curvature radius R9 of the object-side surface of the fifth lens and a curvature radius R10 of the image-side surface of the fifth lens satisfy: 1.69≤R9 / R10≤2.

33.

4. The camera lens assembly according to claim 1, characterized in that: The distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens on the optical axis and the distance SAG51 from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis satisfy: 1.51≤(SAG42+SAG51) / (SAG42-SAG51)≤3.

97.

5. The camera lens assembly according to claim 1, characterized in that: A distance TD from the object side surface of the first lens to the image side surface of the fifth lens on the optical axis and a sum ΣAT of the spacing distances between any two adjacent lenses from the first lens to the fifth lens on the optical axis satisfy: 0.19≤ΣAT / TD≤0.

30.

6. The camera lens assembly according to claim 1, characterized in that: The maximum effective radius DT11 of the object-side surface of the first lens and the maximum effective radius DT12 of the image-side surface of the first lens satisfy: 4.94≤(DT11+DT12) / (DT11-DT12)≤7.

43.

7. The camera lens assembly according to claim 1, characterized in that: Half of the maximum field of view of the camera lens group Semi-FOV satisfies: 2.04≤tan 2 (Semi-FOV)≤3.76.

Images