Camera lens group

Abstract

The present application relates to a camera lens group, which sequentially includes, from the object side to the image side along the optical axis: a first lens with a positive optical power, whose object side is convex and image side is concave; a second lens with a negative optical power, whose object side is convex and image side is concave; a third lens with a positive optical power, whose image side is convex; a fourth lens with a negative optical power, whose image side is concave; a fifth lens with a positive optical power, whose object side is convex and image side is convex; a sixth lens with a negative optical power, whose image side is concave. The maximum semi-field angle Semi-FOV of the camera lens group and the total effective focal length f of the camera lens group can satisfy: 4.50 < tan²(Semi-FOV) × f < 6.00.

Description

Technical Field

[0001] This application relates to the field of optical elements, and specifically, to a camera lens group. Background Art

[0002] With the continuous development of smart phones, the specifications of the camera lens groups of mobile phones also need to be upgraded accordingly. For example, camera lens groups with high resolution and high pixels are increasingly favored by consumers. However, to achieve high resolution and high pixels, it is necessary to increase the height of the camera lens group, which runs counter to the development trend of thinner mobile phones.

[0003] Therefore, in order to meet the market demand for camera lens groups on high-end smart phones, it is necessary to design a camera lens group with a large image plane and a short height. Summary of the Invention

[0004] On the one hand, this application provides such a camera lens group, which sequentially includes, from the object side to the image side along the optical axis: a first lens with a positive focal power, whose object side is convex and image side is concave; a second lens with a negative focal power, whose object side is convex and image side is concave; a third lens with a positive focal power, whose image side is convex; a fourth lens with a negative focal power, whose image side is concave; a fifth lens with a positive focal power, whose object side is convex and image side is convex; a sixth lens with a negative focal power, whose image side is concave; and the maximum semi-field angle Semi-FOV of the camera lens group and the total effective focal length f of the camera lens group satisfy: 4.50 < tan 2 (Semi-FOV) × f < 6.00.

[0005] In some embodiments, the distance TTL from the object side of the first lens to the imaging plane of the camera lens group on the optical axis and half of the diagonal length of the effective pixel region on the imaging plane of the camera lens group satisfy: TTL / ImgH < 1.20.

[0006] In some embodiments, half of the diagonal length ImgH of the effective pixel region on the imaging plane of the camera lens group satisfies: 5.00 mm < ImgH.

[0007] In some embodiments, the effective focal length f1 of the first lens and the effective focal length f3 of the third lens satisfy: 4.00 < f3 / f1 < 11.00.

[0008] In some embodiments, the combined focal length f23 of the second lens and the third lens and the distance BFL from the image side of the sixth lens to the imaging plane of the camera lens group on the optical axis satisfy: -57.00 < f23 / BFL < -24.00.

[0009] In some embodiments, the radius of curvature R3 of the object side surface of the second lens and the radius of curvature R4 of the image side surface of the second lens may satisfy: 1.00 < R3 / R4 < 3.00.

[0010] In some embodiments, the radius of curvature R6 of the image side surface of the third lens and the effective focal length f6 of the sixth lens may satisfy: 4.00 < R6 / f6 < 8.50.

[0011] In some embodiments, the central thickness CT6 of the sixth lens on the optical axis and the spacing distance T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 2.00 < (T56 + CT6) / (T56 - CT6) < 8.00.

[0012] In some embodiments, the edge thickness ET2 of the second lens and the edge thickness ET5 of the fifth lens may satisfy: 4.00 < (ET2 + ET5) / (ET2 - ET5) < 20.00.

[0013] In some embodiments, the distance SAG41 on the optical axis from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens and the distance SAG42 on the optical axis from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens may satisfy: 6.00 < (SAG41 + SAG42) / (SAG41 - SAG42) < 9.50.

[0014] In some embodiments, the maximum effective radius DT51 of the object side surface of the fifth lens and the maximum effective radius DT52 of the image side surface of the fifth lens may satisfy: 16.00 < (DT51 + DT52) / (DT51 - DT52) < 23.00.

[0015] On the other hand, the present application provides such a camera lens group, which sequentially includes, from the object side to the image side along the optical axis: a first lens with a positive optical power, whose object side surface is convex and image side surface is concave; a second lens with a negative optical power, whose object side surface is convex and image side surface is concave; a third lens with a positive optical power, whose image side surface is convex; a fourth lens with a negative optical power, whose image side surface is concave; a fifth lens with a positive optical power, whose object side surface is convex and image side surface is convex; a sixth lens with a negative optical power, whose image side surface is concave; and the distance TTL on the optical axis from the object side surface of the first lens to the imaging surface of the camera lens group and half of the diagonal length of the effective pixel region on the imaging surface of the camera lens group may satisfy: TTL / ImgH < 1.20.

[0016] In some embodiments, half of the diagonal length ImgH of the effective pixel region on the imaging surface of the camera lens group may satisfy: 5.00 mm < ImgH.

[0017] In some embodiments, the maximum semi-field of view Semi-FOV of the camera lens group and the total effective focal length f of the camera lens group may satisfy: 4.50 < tan 2 (Semi-FOV) × f < 6.00.

[0018] In some embodiments, the effective focal length f1 of the first lens and the effective focal length f3 of the third lens may satisfy: 4.00 < f3 / f1 < 11.00.

[0019] In some embodiments, the combined focal length f23 of the second lens and the third lens and the distance BFL on the optical axis from the image side of the sixth lens to the imaging plane of the camera lens group may satisfy: -57.00 < f23 / BFL < -24.00.

[0020] In some embodiments, the radius of curvature R3 of the object side of the second lens and the radius of curvature R4 of the image side of the second lens may satisfy: 1.00 < R3 / R4 < 3.00.

[0021] In some embodiments, the radius of curvature R6 of the image side of the third lens and the effective focal length f6 of the sixth lens may satisfy: 4.00 < R6 / f6 < 8.50.

[0022] In some embodiments, the central thickness CT6 of the sixth lens on the optical axis and the spacing distance T56 on the optical axis between the fifth lens and the sixth lens may satisfy: 2.00 < (T56 + CT6) / (T56 - CT6) < 8.00.

[0023] In some embodiments, the edge thickness ET2 of the second lens and the edge thickness ET5 of the fifth lens may satisfy: 4.00 < (ET2 + ET5) / (ET2 - ET5) < 20.00.

[0024] In some embodiments, the maximum effective radius DT51 of the object side of the fifth lens and the maximum effective radius DT52 of the image side of the fifth lens may satisfy: 16.00 < (DT51 + DT52) / (DT51 - DT52) < 23.00.

[0025] In some embodiments, the distance SAG41 on the optical axis from the intersection of the object side of the fourth lens and the optical axis to the vertex of the effective radius of the object side of the fourth lens and the distance SAG42 on the optical axis from the intersection of the image side of the fourth lens and the optical axis to the vertex of the effective radius of the image side of the fourth lens may satisfy: 6.00 < (SAG41 + SAG42) / (SAG41 - SAG42) < 9.50.

[0026] On the other hand, the present application provides an electronic device, including a camera lens group provided according to the present application and an imaging element for converting an optical image formed by the camera lens group into an electrical signal.

[0027] The present application uses six lenses. By reasonably distributing the optical power and surface shape of each lens, and controlling the optical total length, image height, and other characteristics of the camera lens group, the above-mentioned camera lens group can have at least one beneficial effect such as miniaturization, large image plane, short height, ultra-thinness, and high imaging quality. Description of the Drawings

[0028] In combination with the drawings, through the following detailed description of non-limiting embodiments, other features, objectives, and advantages of the present application will become more apparent. In the drawings:

[0029] Figure 1 Shows a schematic structural diagram of a camera lens group according to Embodiment 1 of the present application;

[0030] Figures 2A to 2D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens group of Embodiment 1;

[0031] Figure 3 Shows a schematic structural diagram of a camera lens group according to Embodiment 2 of the present application;

[0032] Figures 4A to 4D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens group of Embodiment 2;

[0033] Figure 5 Shows a schematic structural diagram of a camera lens group according to Embodiment 3 of the present application;

[0034] Figures 6A to 6D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens group of Embodiment 3;

[0035] Figure 7 Shows a schematic structural diagram of a camera lens group according to Embodiment 4 of the present application;

[0036] Figures 8A to 8D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens group of Embodiment 4;

[0037] Figure 9 Shows a schematic structural diagram of a camera lens group according to Embodiment 5 of the present application;

[0038] Figures 10A to 10D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens group of Embodiment 5;

[0039] Figure 11 Shows a schematic structural diagram of a camera lens group according to Embodiment 6 of the present application;

[0040] Figures 12A to 12D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve and lateral chromatic aberration curve of the camera lens group of Embodiment 6;

[0041] Figure 13 Shows a schematic structural diagram of a camera lens group according to Embodiment 7 of the present application;

[0042] Figures 14A to 14D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve and lateral chromatic aberration curve of the camera lens group of Embodiment 7;

[0043] Figure 15 Shows a schematic structural diagram of a camera lens group according to Embodiment 8 of the present application;

[0044] Figures 16A to 16D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve and lateral chromatic aberration curve of the camera lens group of Embodiment 8. Detailed implementation manners

[0045] To better understand the present application, more detailed descriptions will be made on 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 do not 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.

[0046] It should be noted that in this specification, the expressions such as first, second, and third are only used to distinguish one feature from another feature and do not represent any limitation on the feature. Therefore, without departing from the teachings of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0047] In the accompanying drawings, for the sake of convenience of illustration, the thickness, size and shape of the lens have been slightly exaggerated. Specifically, the spherical or aspherical shapes shown in the drawings are shown by way of example. That is, the spherical or aspherical shapes are not limited to the spherical or aspherical shapes shown in the drawings. The drawings are only for illustration and are not drawn strictly to scale.

[0048] In this text, 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 being photographed is called the object side surface of the lens, and the surface of each lens closest to the imaging side is called the image side surface of the lens.

[0049] It should also be understood that the terms "comprising", "comprising of", "having", "containing" and / or "containing of", when used in this specification, mean 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 an expression such as "at least one of..." appears after a list of listed features, it modifies the entire list of listed features, rather than an individual element in the list. In addition, when describing the embodiments of the present application, the use of "may" means "one or more embodiments of the present application". And the term "exemplary" is intended to refer to an example or illustration.

[0050] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms (such as those defined in a common dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formalized sense unless expressly so defined herein.

[0051] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0052] The features, principles and other aspects of the present application will be described in detail below.

[0053] The imaging lens group according to an exemplary embodiment of the present application may include six lenses having optical power, namely a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. These six lenses are arranged in sequence from the object side to the image side along the optical axis of the imaging lens group, and there may be an air gap between any two adjacent lenses.

[0054] In an exemplary embodiment, the first lens may have a positive optical power, its object side surface may be convex, and its image side surface may be concave. This setting of the first lens is conducive to the convergence of light rays and can be matched with the second lens.

[0055] In an exemplary embodiment, the second lens may have a negative optical power, with its object side being convex and its image side being concave. This arrangement of the second lens can reduce the height of light rays on the lens, which is beneficial for the shaping of the second lens.

[0056] In an exemplary embodiment, the third lens may have a positive optical power, with its image side being convex. This arrangement of the third lens can make the third lens, the first lens, and the second lens form a symmetric system, which is beneficial for correcting system distortion and lateral chromatic aberration.

[0057] In an exemplary embodiment, the fourth lens may have a negative optical power, with its image side being concave. This arrangement of the fourth lens can share part of the optical power of the first lens and the second lens, thereby avoiding the problem of too large an angle caused by too large optical power of the first lens and the second lens.

[0058] In an exemplary embodiment, the fifth lens may have a positive optical power, with its object side being convex and its image side being convex. This arrangement of the fifth lens can reasonably distribute the optical path difference between the inner and outer fields of view, thereby reducing the field curvature difference between the inner and outer fields of view.

[0059] In an exemplary embodiment, the sixth lens may have a negative optical power, with its image side being concave. This arrangement of the sixth lens can converge the light rays in the central field of view, thereby reducing aberration.

[0060] In an exemplary embodiment, the maximum semi-field of view Semi - FOV of the camera lens group and the total effective focal length f of the camera lens group may satisfy: 4.50 < tan 2 (Semi - FOV)×f < 6.00. Satisfying 4.50 < tan 2 (Semi - FOV)×f < 6.00 can, on the one hand, reasonably control the image plane height, thereby realizing the characteristic of a large image plane; on the other hand, it can reasonably control the equivalent focal length of the camera lens group, thereby matching wide - angle and telephoto lenses to achieve high - magnification optical zoom. More specifically, Semi - FOV and f may further satisfy: 4.80 < tan 2 (Semi - FOV)×f < 5.50.

[0061] In an exemplary 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 and half of the diagonal length of the effective pixel region on the imaging plane of the camera lens group may satisfy: TTL / ImgH < 1.20. Satisfying TTL / ImgH < 1.20 can achieve the characteristic of being ultra - thin, so that the camera lens group can be applied to various increasingly thin electronic devices currently. More specifically, TTL and ImgH may further satisfy: TTL / ImgH < 1.18.

[0062] In an exemplary embodiment, half of the diagonal length ImgH of the effective pixel region on the imaging surface of the camera lens group may satisfy: 5.00 mm < ImgH. Satisfying 5.00 mm < ImgH can endow the camera lens group with the characteristic of a large imaging surface. More specifically, ImgH may further satisfy: 5.25 mm < ImgH.

[0063] In an exemplary embodiment, the effective focal length f1 of the first lens and the effective focal length f3 of the third lens may satisfy: 4.00 < f3 / f1 < 11.00. Satisfying 4.00 < f3 / f1 < 11.00 can, on the one hand, reduce the height of the camera lens group, thereby achieving the characteristic of being ultra-thin; on the other hand, it can reduce the aberration, thereby achieving high imaging quality. More specifically, f1 and f3 may further satisfy: 4.50 < f3 / f1 < 11.00.

[0064] In an exemplary embodiment, the combined focal length f23 of the second lens and the third lens and the distance BFL from the image side of the sixth lens to the imaging surface of the camera lens group on the optical axis may satisfy: -57.00 < f23 / BFL < -24.00. Satisfying -57.00 < f23 / BFL < -24.00 is beneficial, on the one hand, to balance the aberration of the second lens and the third lens, especially the lateral aberration; on the other hand, it can control the angle of the light rays, thereby avoiding the light rays hitting the lens barrel to form stray light at the end. More specifically, f23 and BFL may further satisfy: -57.00 < f23 / BFL < -24.50.

[0065] In an exemplary embodiment, the curvature radius R3 of the object side of the second lens and the curvature radius R4 of the image side of the second lens may satisfy: 1.00 < R3 / R4 < 3.00. Satisfying 1.00 < R3 / R4 < 3.00 can control the shape of the second lens, which is beneficial to the processing and forming of the second lens. More specifically, R3 and R4 may further satisfy: 1.30 < R3 / R4 < 2.8.

[0066] In an exemplary embodiment, the curvature radius R6 of the image side of the third lens and the effective focal length f6 of the sixth lens may satisfy: 4.00 < R6 / f6 < 8.50. Satisfying 4.00 < R6 / f6 < 8.50 is beneficial, on the one hand, to balance the spherical aberration of the third lens and the sixth lens; on the other hand, it is beneficial to prevent the shape of the sixth lens from being too curved. More specifically, R6 and f6 may further satisfy: 4.50 < R6 / f6 < 8.30.

[0067] In an exemplary embodiment, the central thickness CT6 of the sixth lens on the optical axis and the spacing distance T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 2.00 < (T56 + CT6) / (T56 - CT6) < 8.00. Satisfying 2.00 < (T56 + CT6) / (T56 - CT6) < 8.00 is beneficial, on the one hand, to shortening the size of the camera lens group, thereby achieving the characteristic of being ultra-thin; on the other hand, it is beneficial to prevent ghost images from occurring between the lenses. More specifically, CT6 and T56 may further satisfy: 2.50 < (T56 + CT6) / (T56 - CT6) < 7.85.

[0068] In an exemplary embodiment, the edge thickness ET2 of the second lens and the edge thickness ET5 of the fifth lens may satisfy: 4.00 < (ET2 + ET5) / (ET2 - ET5) < 20.00. Satisfying 4.00 < (ET2 + ET5) / (ET2 - ET5) < 20.00 can make the edge thicknesses of the second lens and the fifth lens relatively large, which is beneficial to the shaping of the lenses. More specifically, ET2 and ET5 may further satisfy: 4.20 < (ET2 + ET5) / (ET2 - ET5) < 19.80.

[0069] In an exemplary embodiment, the distance SAG41 on the optical axis from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens and the distance SAG42 on the optical axis from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens may satisfy: 6.00 < (SAG41 + SAG42) / (SAG41 - SAG42) < 9.50. Satisfying 6.00 < (SAG41 + SAG42) / (SAG41 - SAG42) < 9.50 is beneficial, on the one hand, to the shaping of the fourth lens; on the other hand, according to the different light converging capabilities of different fields of view, the aberration of different fields of view is balanced, thereby improving the resolution. More specifically, SAG41 and SAG42 may further satisfy: 6.10 < (SAG41 + SAG42) / (SAG41 - SAG42) < 9.20.

[0070] In an exemplary embodiment, the maximum effective radius DT51 of the object side surface of the fifth lens and the maximum effective radius DT52 of the image side surface of the fifth lens may satisfy: 16.00 < (DT51 + DT52) / (DT51 - DT52) < 23.00. Satisfying 16.00 < (DT51 + DT52) / (DT51 - DT52) < 23.00 can control the height of the light rays on the fifth lens, which is beneficial to improving the resolution and reducing the risk of stray light caused by overly steep light rays. More specifically, DT51 and DT52 may further satisfy: 16.10 < (DT51 + DT52) / (DT51 - DT52) < 22.80.

[0071] In an exemplary embodiment, the above-mentioned camera lens group may further include a diaphragm. The diaphragm can be disposed at an appropriate position as needed. For example, the diaphragm can be disposed in front of the first lens. Optionally, the above-mentioned camera lens group may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0072] The camera lens group according to the above embodiment of the present application may employ multiple lenses, such as the six lenses described above. By reasonably allocating the optical power, surface type, central thickness of each lens, and the on-axis spacing between each lens, etc., 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 may have characteristics such as miniaturization, ultra-thinness, large image surface, short height, and good imaging quality.

[0073] In an embodiment of the present application, at least one of the lens surfaces of each lens is an aspherical lens, that is, at least one of the object side surface of the first lens to the image side surface of the sixth lens is an aspherical lens. The characteristic of an aspherical lens is that the curvature continuously changes from the center of the lens to the periphery of the lens. Different from a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better curvature radius characteristics and has the advantage of improving distortion aberration, that is, improving astigmatism aberration. After using an aspherical lens, it is possible to eliminate as much as possible the aberration that appears during imaging, thereby improving the imaging quality. Optionally, at least one of the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens is an aspherical surface. Optionally, both the object side surface and the image side surface of each of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are aspherical surfaces.

[0074] 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 group can be changed to obtain the various results and advantages described in this specification. For example, although six lenses are described as an example in the embodiment, the camera lens group is not limited to including six lenses. If necessary, the camera lens group may further include other numbers of lenses.

[0075] The following further describes specific embodiments of the camera lens group applicable to the above embodiments with reference to the accompanying drawings.

[0076] Example 1

[0077] The following refers to Figures 1 to 2D Describe the camera lens group according to Embodiment 1 of the present application. Figure 1The structural schematic diagram of the camera lens group according to Embodiment 1 of the present application is shown.

[0078] As Figure 1 shown, the camera lens group sequentially includes, from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0079] The first lens E1 has a positive optical power, its object surface S1 is convex, and its image surface S2 is concave. The second lens E2 has a negative optical power, its object surface S3 is convex, and its image surface S4 is concave. The third lens E3 has a positive optical power, its object surface S5 is convex, and its image surface S6 is convex. The fourth lens E4 has a negative optical power, its object surface S7 is concave, and its image surface S8 is concave. The fifth lens E5 has a positive optical power, its object surface S9 is convex, and its image surface S10 is convex. The sixth lens E6 has a negative optical power, its object surface S11 is convex, and its image surface S12 is concave. The filter E7 has an object surface S13 and an image surface S14. The light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15.

[0080] Table 1 shows the basic parameter table of the camera lens group of Embodiment 1, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm).

[0081]

[0082] Table 1

[0083] In this example, the total effective focal length f of the camera lens group is 5.12 mm, the total length TTL of the camera lens group (i.e., the distance on the optical axis from the object surface S1 of the first lens E1 to the imaging surface S15 of the camera lens group) is 6.16 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the camera lens group ImgH is 5.27 mm, the aperture value Fno of the camera lens group is 2.00, and the maximum semi-field angle Semi-FOV of the camera lens group is 45.4°.

[0084] In Embodiment 1, the object surface and the image surface of any one of the first lens E1 to the sixth lens E6 are both aspherical surfaces, and the surface profile x of each aspherical lens can be defined by, but not limited to, the following aspherical formula:

[0085]

[0086] Wherein, x is the sagitta, which is the distance from the vertex of the aspherical surface to the position along the optical axis at a height of h; c is the paraxial curvature of the aspherical surface, c = 1 / R (i.e., the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; Ai is the correction coefficient of the i-th order of the aspherical surface. Tables 2 and 3 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 for each of the aspherical mirrors S1 - S12 in Example 1.

[0087] Face number A4 A6 A8 A10 A12 A14 A16 S1 3.7531E-03 -1.9094E-02 1.3735E-01 -5.3305E-01 1.2794E+00 -1.9881E+00 2.0357E+00 S2 -4.3526E-02 1.8354E-01 -1.7831E+00 1.1286E+01 -4.7274E+01 1.3728E+02 -2.8414E+02 S3 -3.9983E-02 -1.1236E-01 1.4317E+00 -8.5190E+00 3.3117E+01 -8.8036E+01 1.6428E+02 S4 -2.8648E-02 2.6042E-01 -2.3839E+00 1.4997E+01 -6.1625E+01 1.7234E+02 -3.3544E+02 S5 -2.8520E-02 -2.5736E-01 2.3210E+00 -1.3137E+01 4.9051E+01 -1.2752E+02 2.3752E+02 S6 -6.0231E-02 -4.7585E-03 8.9362E-02 -3.0698E-01 4.9193E-01 -4.6464E-01 2.6267E-01 S7 -1.3089E-01 3.6418E-02 1.4470E-01 -5.1710E-01 9.7095E-01 -1.2241E+00 1.0839E+00 S8 -1.5457E-01 8.4350E-02 -6.4145E-02 9.2719E-02 -1.4882E-01 1.7740E-01 -1.4763E-01 S9 -4.8541E-02 -1.0662E-02 2.3385E-02 -2.6328E-02 2.7764E-02 -2.2438E-02 1.2713E-02 S10 6.8850E-03 -1.5007E-02 1.6987E-02 -1.5397E-02 1.1770E-02 -5.6441E-03 1.5682E-03 S11 -1.8563E-01 6.6251E-02 -8.9994E-03 -1.0785E-03 7.1573E-04 -1.4655E-04 1.6276E-05 S12 -2.0412E-01 1.0723E-01 -4.6123E-02 1.5374E-02 -3.8543E-03 7.1817E-04 -9.9274E-05

[0088] Table 2

[0089] Face number A18 A20 A22 A24 A26 A28 A30 S1 -1.3645E+00 5.7600E-01 -1.3890E-01 1.4586E-02 0.0000E+00 0.0000E+00 0.0000E+00 S2 4.2490E+02 -4.5998E+02 3.5679E+02 -1.9316E+02 6.9260E+01 -1.4771E+01 1.4175E+00 S3 -2.1813E+02 2.0639E+02 -1.3750E+02 6.2633E+01 -1.8400E+01 3.0971E+00 -2.2135E-01 S4 4.5747E+02 -4.3288E+02 2.7505E+02 -1.0856E+02 2.1418E+01 -8.4889E-02 -5.0599E-01 S5 -3.2157E+02 3.1720E+02 -2.2571E+02 1.1289E+02 -3.7664E+01 7.5290E+00 -6.8224E-01 S6 -8.2066E-02 1.0918E-02 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -6.7944E-01 3.0091E-01 -9.2476E-02 1.8773E-02 -2.2526E-03 1.1960E-04 0.0000E+00 S8 8.6059E-02 -3.5129E-02 9.9447E-03 -1.9075E-03 2.3619E-04 -1.7027E-05 5.4264E-07 S9 -5.0609E-03 1.4199E-03 -2.7785E-04 3.6951E-05 -3.1751E-06 1.5879E-07 -3.5086E-09 S10 -2.2844E-04 6.1553E-06 3.7907E-06 -7.2071E-07 6.2309E-08 -2.7584E-09 5.0503E-11 S11 -8.8987E-07 -1.0510E-08 5.6393E-09 -4.4147E-10 1.7889E-11 -3.8919E-13 3.6099E-15 S12 1.0169E-05 -7.6716E-07 4.1993E-08 -1.6195E-09 4.1667E-11 -6.4126E-13 4.4617E-15

[0090] Table 3

[0091] Figure 2A Shows the axial chromatic aberration curve of the camera lens group of Example 1, which represents the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 2B Shows the astigmatism curve of the camera lens group of Example 1, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 2C Shows the distortion curve of the camera lens group of Example 1, which represents the distortion magnitude values corresponding to different image heights. Figure 2D Shows the longitudinal chromatic aberration curve of the camera lens group of Example 1, which represents the deviation of different image heights on the imaging plane after the light rays pass through the lens. According to Figures 2A to 2D It can be seen that the camera lens group given in Example 1 can achieve good imaging quality.

[0092] Example 2

[0093] The following refers to Figures 3 to 4D Describe the camera lens group according to Embodiment 2 of the present application. Figure 3 Shows a schematic structural diagram of the camera lens group according to Embodiment 2 of the present application.

[0094] As Figure 3 shown, the camera lens group sequentially includes, from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0095] The first lens E1 has a positive optical power, with its object side S1 being convex and its image side S2 being concave. The second lens E2 has a negative optical power, with its object side S3 being convex and its image side S4 being concave. The third lens E3 has a positive optical power, with its object side S5 being concave and its image side S6 being convex. The fourth lens E4 has a negative optical power, with its object side S7 being concave and its image side S8 being concave. The fifth lens E5 has a positive optical power, with its object side S9 being convex and its image side S10 being convex. The sixth lens E6 has a negative optical power, with its object side S11 being convex and its image side S12 being concave. The filter E7 has an object side S13 and an image side S14. Light from the object sequentially passes through each surface S1 to S14 and finally forms an image on the imaging surface S15.

[0096] In this example, the total effective focal length f of the camera lens group is 4.99 mm, the total length TTL of the camera lens group is 6.16 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the camera lens group is ImgH = 5.27 mm, the aperture value Fno of the camera lens group is 2.06, and the maximum half field of view Semi - FOV of the camera lens group is 45.2°.

[0097] Table 4 shows the basic parameter table of the camera lens group of Example 2, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 5 and 6 give the higher - order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 of each aspherical mirror surface S1 - S12 that can be used in Example 2. Among them, each aspherical surface type can be defined by formula (1) given in the above Example 1.

[0098]

[0099] Table 4

[0100] Face number A4 A6 A8 A10 A12 A14 A16 S1 -9.3103E-04 3.7744E-03 1.6918E-01 -1.2444E+00 4.2481E+00 -8.4401E+00 1.0461E+01 S2 -3.4608E-02 2.4808E-02 -9.3386E-02 1.8742E-01 4.1767E-01 -3.0064E+00 6.9372E+00 S3 -4.1658E-02 -7.9024E-02 1.1768E+00 -7.1359E+00 2.7194E+01 -6.8985E+01 1.2003E+02 S4 -2.6770E-02 2.3839E-01 -2.2303E+00 1.4428E+01 -6.1336E+01 1.7908E+02 -3.6891E+02 S5 -3.6146E-02 -1.0651E-01 7.6429E-01 -3.5963E+00 1.0677E+01 -2.1059E+01 2.7755E+01 S6 -4.9965E-02 -5.0778E-02 2.1255E-01 -5.1658E-01 7.2085E-01 -6.2271E-01 3.2822E-01 S7 -1.5215E-01 2.3592E-01 -8.1762E-01 2.2897E+00 -4.4190E+00 5.9175E+00 -5.6056E+00 S8 -1.5417E-01 9.7397E-02 -1.1905E-01 2.0799E-01 -3.0079E-01 3.1381E-01 -2.3416E-01 S9 -4.5739E-02 -1.4371E-02 3.3696E-02 -4.4817E-02 4.6601E-02 -3.4288E-02 1.7581E-02 S10 1.0771E-02 -3.2030E-02 5.0417E-02 -5.2959E-02 3.8261E-02 -1.8015E-02 5.5195E-03 S11 -1.8290E-01 6.4844E-02 -8.7714E-03 -1.0383E-03 6.9106E-04 -1.4226E-04 1.6120E-05 S12 -1.9746E-01 1.0218E-01 -4.3578E-02 1.4429E-02 -3.5878E-03 6.6168E-04 -9.0369E-05

[0101] Table 5

[0102] Face number A18 A20 A22 A24 A26 A28 A30 S1 -8.2090E+00 3.9666E+00 -1.0773E+00 1.2583E-01 0.0000E+00 0.0000E+00 0.0000E+00 S2 -8.0760E+00 3.6604E+00 2.4681E+00 -4.6779E+00 2.9694E+00 -9.1691E-01 1.1512E-01 S3 -1.4485E+02 1.2034E+02 -6.6653E+01 2.2722E+01 -3.7811E+00 -3.2930E-02 7.5147E-02 S4 5.4379E+02 -5.7517E+02 4.3243E+02 -2.2527E+02 7.7193E+01 -1.5630E+01 1.4149E+00 S5 -2.3436E+01 1.0434E+01 8.2849E-01 -4.2290E+00 2.6026E+00 -7.4662E-01 8.7542E-02 S6 -9.6450E-02 1.2114E-02 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 3.7882E+00 -1.8139E+00 6.0082E-01 -1.3093E-01 1.6901E-02 -9.8022E-04 0.0000E+00 S8 1.2550E-01 -4.8106E-02 1.3003E-02 -2.4118E-03 2.9160E-04 -2.0677E-05 6.5205E-07 S9 -6.3901E-03 1.6571E-03 -3.0351E-04 3.8202E-05 -3.1350E-06 1.5078E-07 -3.2210E-09 S10 -1.1052E-03 1.4132E-04 -1.0420E-05 2.5273E-07 2.2967E-08 -2.0302E-09 4.9433E-11 S11 -9.5707E-07 3.7467E-09 4.1872E-09 -3.5230E-10 1.4527E-11 -3.1711E-13 2.9344E-15 S12 9.1331E-06 -6.7913E-07 3.6611E-08 -1.3897E-09 3.5176E-11 -5.3247E-13 3.6432E-15

[0103] Table 6

[0104] Figure 4A Shows the axial chromatic aberration curve of the camera lens group of Example 2, which represents the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 4B Shows the astigmatism curve of the camera lens group of Example 2, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 4C Shows the distortion curve of the camera lens group of Example 2, which represents the distortion magnitude values corresponding to different image heights. Figure 4DThe chromatic aberration of magnification curve of the imaging lens group of Embodiment 2 is shown, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to Figures 4A to 4D it can be known that the imaging lens group given in Embodiment 2 can achieve good imaging quality.

[0105] Example 3

[0106] The following refers to Figures 5 to 6D to describe the imaging lens group according to Embodiment 3 of the present application. Figure 5 The structural schematic diagram of the imaging lens group according to Embodiment 3 of the present application is shown.

[0107] As Figure 5 shown, the imaging lens group sequentially includes, from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0108] The first lens E1 has a positive optical power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has a negative optical power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has a positive optical power, its object side surface S5 is convex, and its image side surface S6 is convex. The fourth lens E4 has a negative optical power, its object side surface S7 is convex, and its image side surface S8 is concave. The fifth lens E5 has a positive optical power, its object side surface S9 is convex, and its image side surface S10 is convex. The sixth lens E6 has a negative optical power, its object side surface S11 is convex, and its image side surface S12 is concave. The filter E7 has an object side surface S13 and an image side surface S14. The light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15.

[0109] In this example, the total effective focal length f of the imaging lens group is 5.05 mm, the total length TTL of the imaging lens group is 6.15 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the imaging lens group is ImgH = 5.27 mm, the aperture value Fno of the imaging lens group is 1.97, and the maximum half field of view Semi - FOV of the imaging lens group is 45.1°.

[0110] Table 7 shows the basic parameter table of the imaging lens group of Embodiment 3, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 8 and 9 give the high - order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 of the aspherical mirror surfaces S1 - S12 that can be used in Embodiment 3. Among them, each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0111]

[0112]

[0113] Table 7

[0114] Face number A4 A6 A8 A10 A12 A14 A16 S1 4.6298E-05 2.0159E-02 -8.6701E-02 2.5538E-01 -5.1418E-01 7.1996E-01 -6.9927E-01 S2 -3.1290E-02 -4.9581E-02 5.4132E-01 -2.7004E+00 8.2069E+00 -1.5054E+01 1.3867E+01 S3 -5.0608E-02 8.5043E-02 -6.3462E-01 4.7444E+00 -2.2697E+01 7.3489E+01 -1.6683E+02 S4 -1.7825E-02 2.7892E-02 1.7282E-01 -2.4698E+00 1.8198E+01 -8.2405E+01 2.4718E+02 S5 -4.1732E-02 -2.7957E-02 2.2189E-01 -1.2853E+00 4.2817E+00 -9.2143E+00 1.2870E+01 S6 -6.3451E-02 1.1547E-02 3.1374E-02 -1.7084E-01 2.9182E-01 -2.8097E-01 1.6102E-01 S7 -1.3801E-01 3.6084E-02 1.9737E-01 -6.5502E-01 1.1444E+00 -1.3141E+00 1.0362E+00 S8 -1.7140E-01 1.1477E-01 -1.0197E-01 1.3555E-01 -2.0003E-01 2.3160E-01 -1.9065E-01 S9 -6.4191E-02 2.0755E-02 -2.6702E-02 3.1569E-02 -2.0757E-02 6.8741E-03 -6.5453E-05 S10 7.6863E-04 -1.1485E-02 1.7054E-02 -1.7852E-02 1.4503E-02 -7.4363E-03 2.3731E-03 S11 -1.8421E-01 6.2856E-02 -5.3427E-03 -3.1807E-03 1.4653E-03 -3.2665E-04 4.6737E-05 S12 -1.9460E-01 9.9116E-02 -4.1286E-02 1.3506E-02 -3.3709E-03 6.3185E-04 -8.8455E-05

[0115] Table 8

[0116] Face number A18 A20 A22 A24 A26 A28 A30 S1 4.5983E-01 -1.9469E-01 4.7742E-02 -5.1442E-03 0.0000E+00 0.0000E+00 0.0000E+00 S2 3.2683E+00 -2.7136E+01 3.7354E+01 -2.7953E+01 1.2413E+01 -3.0802E+00 3.3041E-01 S3 2.7009E+02 -3.1314E+02 2.5774E+02 -1.4690E+02 5.5070E+01 -1.2208E+01 1.2117E+00 S4 -5.1053E+02 7.3828E+02 -7.4671E+02 5.1773E+02 -2.3453E+02 6.2533E+01 -7.4421E+00 S5 -1.0691E+01 2.8974E+00 4.1937E+00 -5.6740E+00 3.2438E+00 -9.5011E-01 1.1628E-01 S6 -5.1109E-02 6.9319E-03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -5.6219E-01 2.0649E-01 -4.9261E-02 6.9258E-03 -4.3783E-04 0.0000E+00 0.0000E+00 S8 1.1038E-01 -4.4832E-02 1.2656E-02 -2.4272E-03 3.0130E-04 -2.1832E-05 7.0111E-07 S9 -1.0271E-03 4.9872E-04 -1.2713E-04 1.9714E-05 -1.8655E-06 9.9333E-08 -2.2874E-09 S10 -4.8348E-04 6.3280E-05 -5.1688E-06 2.4048E-07 -4.8766E-09 0.0000E+00 0.0000E+00 S11 -4.5929E-06 3.1484E-07 -1.4848E-08 4.6026E-10 -8.4550E-12 6.9809E-14 0.0000E+00 S12 9.2130E-06 -7.0831E-07 3.9551E-08 -1.5565E-09 4.0863E-11 -6.4163E-13 4.5538E-15

[0117] Table 9

[0118] Figure 6A The axial chromatic aberration curve of the camera lens group of Embodiment 3 is shown, which represents the deviation of the convergence points of light rays with different wavelengths after passing through the lens. Figure 6B The astigmatism curve of the camera lens group of Embodiment 3 is shown, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 6C The distortion curve of the camera lens group of Embodiment 3 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 6D The longitudinal chromatic aberration curve of the camera lens group of Embodiment 3 is shown, which represents the deviation of different image heights on the imaging plane after the light rays pass through the lens. According to Figures 6A to 6D it can be seen that the camera lens group given in Embodiment 3 can achieve good imaging quality.

[0119] Example 4

[0120] The following refers to Figures 7 to 8D to describe the camera lens group according to Embodiment 4 of the present application. Figure 7 The structural schematic diagram of the camera lens group according to Embodiment 4 of the present application is shown.

[0121] As Figure 7 shown, the camera lens group sequentially includes, from the object side to the image side: a stop STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0122] The first lens E1 has a positive focal power, with its object side S1 being convex and its image side S2 being concave. The second lens E2 has a negative focal power, with its object side S3 being convex and its image side S4 being concave. The third lens E3 has a positive focal power, with its object side S5 being concave and its image side S6 being convex. The fourth lens E4 has a negative focal power, with its object side S7 being convex and its image side S8 being concave. The fifth lens E5 has a positive focal power, with its object side S9 being convex and its image side S10 being convex. The sixth lens E6 has a negative focal power, with its object side S11 being convex and its image side S12 being concave. The filter E7 has an object side S13 and an image side S14. Light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15.

[0123] In this example, the total effective focal length f of the camera lens group is 5.09 mm, the total length TTL of the camera lens group is 6.16 mm, half of the diagonal length of the effective pixel region on the imaging surface S15 of the camera lens group is ImgH = 5.27 mm, the aperture value Fno of the camera lens group is 1.97, and the maximum half field of view Semi - FOV of the camera lens group is 44.8°.

[0124] Table 10 shows the basic parameter table of the camera lens group of Example 4, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 11 and 12 give the higher - order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 for each aspherical mirror surface S1 - S12 in Example 4. Among them, each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0125]

[0126] Table 10

[0127] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.9379E-03 2.8323E-03 1.4326E-02 -1.0555E-01 3.1911E-01 -5.5825E-01 6.1302E-01 S2 -3.3244E-02 8.0053E-03 -5.2062E-03 4.0659E-01 -3.3963E+00 1.4807E+01 -4.0615E+01 S3 -4.5965E-02 2.6245E-02 -1.1863E-02 5.8591E-01 -4.6187E+00 1.9614E+01 -5.3304E+01 S4 -2.0516E-02 1.3789E-01 -1.3219E+00 9.5723E+00 -4.5428E+01 1.4845E+02 -3.4428E+02 S5 -2.6097E-02 -2.6660E-01 2.3449E+00 -1.3519E+01 5.2190E+01 -1.4143E+02 2.7593E+02 S6 -6.7126E-02 1.6717E-02 2.5008E-02 -1.6764E-01 2.9708E-01 -2.9075E-01 1.6808E-01 S7 -1.4945E-01 8.2436E-02 3.5364E-02 -2.7556E-01 5.4352E-01 -6.5775E-01 5.3625E-01 S8 -1.6984E-01 1.1389E-01 -9.7093E-02 1.1429E-01 -1.5134E-01 1.6415E-01 -1.2976E-01 S9 -6.0718E-02 1.3388E-02 -1.0351E-02 1.0323E-02 -2.7261E-03 -3.5830E-03 4.1294E-03 S10 -8.7093E-04 -9.3592E-03 1.6422E-02 -1.8591E-02 1.5425E-02 -7.9463E-03 2.5461E-03 S11 -1.8625E-01 6.5085E-02 -7.0739E-03 -2.3227E-03 1.1925E-03 -2.6856E-04 3.8175E-05 S12 -1.9242E-01 9.6271E-02 -3.9536E-02 1.2788E-02 -3.1555E-03 5.8408E-04 -8.0656E-05

[0128] Table 11

[0129] Face number A18 A20 A22 A24 A26 A28 A30 S1 -4.3024E-01 1.8766E-01 -4.6423E-02 4.9799E-03 0.0000E+00 0.0000E+00 0.0000E+00 S2 7.4775E+01 -9.4852E+01 8.3209E+01 -4.9617E+01 1.9202E+01 -4.3511E+00 4.3824E-01 S3 9.8365E+01 -1.2619E+02 1.1281E+02 -6.9021E+01 2.7588E+01 -6.4967E+00 6.8413E-01 S4 5.7570E+02 -6.9658E+02 6.0442E+02 -3.6668E+02 1.4769E+02 -3.5480E+01 3.8476E+00 S5 -3.9238E+02 4.0711E+02 -3.0480E+02 1.6031E+02 -5.6180E+01 1.1775E+01 -1.1163E+00 S6 -5.3545E-02 7.2527E-03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -2.9635E-01 1.0938E-01 -2.5961E-02 3.6121E-03 -2.2587E-04 0.0000E+00 0.0000E+00 S8 7.3102E-02 -2.9068E-02 8.0483E-03 -1.5131E-03 1.8382E-04 -1.3003E-05 4.0653E-07 S9 -2.1832E-03 7.1256E-04 -1.5230E-04 2.1348E-05 -1.8915E-06 9.6160E-08 -2.1391E-09 S10 -5.2176E-04 6.8817E-05 -5.6726E-06 2.6664E-07 -5.4674E-09 0.0000E+00 0.0000E+00 S11 -3.7051E-06 2.5012E-07 -1.1597E-08 3.5302E-10 -6.3628E-12 5.1512E-14 0.0000E+00 S12 8.2797E-06 -6.2706E-07 3.4480E-08 -1.3359E-09 3.4518E-11 -5.3324E-13 3.7216E-15

[0130] Table 12

[0131] Figure 8A Shows the axial chromatic aberration curve of the camera lens group of Example 4, which represents the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 8B Shows the astigmatism curve of the camera lens group of Example 4, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 8C Shows the distortion curve of the camera lens group of Example 4, which represents the distortion magnitude values corresponding to different image heights. Figure 8DThe chromatic aberration of magnification curve of the camera lens group of Embodiment 4 is shown, which represents the deviation of different image heights on the imaging plane after light passes through the lens. According to Figures 8A to 8D it can be known that the camera lens group given in Embodiment 4 can achieve good imaging quality.

[0132] Example 5

[0133] The following refers to Figures 9 to 10D to describe the camera lens group according to Embodiment 5 of the present application. Figure 9 The structural schematic diagram of the camera lens group according to Embodiment 5 of the present application is shown.

[0134] As Figure 9 shown, the camera lens group sequentially includes, from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0135] The first lens E1 has a positive optical power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has a negative optical power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has a positive optical power, its object side surface S5 is convex, and its image side surface S6 is convex. The fourth lens E4 has a negative optical power, its object side surface S7 is convex, and its image side surface S8 is concave. The fifth lens E5 has a positive optical power, its object side surface S9 is convex, and its image side surface S10 is convex. The sixth lens E6 has a negative optical power, its object side surface S11 is concave, and its image side surface S12 is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through each surface S1 to S14 and finally forms an image on the imaging surface S15.

[0136] In this example, the total effective focal length f of the camera lens group is 5.13 mm, the total length TTL of the camera lens group is 6.16 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the camera lens group ImgH is 5.27 mm, the aperture value Fno of the camera lens group is 1.97, and the maximum half field of view Semi-FOV of the camera lens group is 44.5°.

[0137] The basic parameter table of the camera lens group of Embodiment 5 is shown in Table 13, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 14 and 15 give the higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 of each aspherical mirror surface S1 - S12 that can be used in Embodiment 5. Among them, each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0138]

[0139]

[0140] Table 13

[0141] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.8557E-03 3.2339E-03 7.1479E-03 -6.4127E-02 1.9519E-01 -3.3841E-01 3.6827E-01 S2 -2.9366E-02 -5.9748E-02 5.9434E-01 -2.7941E+00 7.7284E+00 -1.1548E+01 3.1004E+00 S3 -4.8547E-02 8.3409E-02 -6.9685E-01 5.4901E+00 -2.7286E+01 9.0894E+01 -2.1076E+02 S4 -1.7988E-02 5.3524E-02 -1.3003E-01 -2.6748E-01 6.9617E+00 -4.1141E+01 1.3696E+02 S5 -3.6654E-02 -1.1262E-01 9.4208E-01 -5.1575E+00 1.8479E+01 -4.6268E+01 8.3447E+01 S6 -6.7265E-02 1.7412E-02 2.9170E-02 -1.8220E-01 3.1887E-01 -3.0906E-01 1.7669E-01 S7 -1.5064E-01 9.6053E-02 -1.5677E-02 -1.5100E-01 3.3444E-01 -4.1142E-01 3.3139E-01 S8 -1.7333E-01 1.2724E-01 -1.3122E-01 1.7832E-01 -2.4021E-01 2.5459E-01 -1.9689E-01 S9 -6.1277E-02 1.2680E-02 -6.8168E-03 5.7790E-03 3.8519E-04 -4.8026E-03 4.3526E-03 S10 1.2462E-03 -1.5053E-02 2.3803E-02 -2.4599E-02 1.8534E-02 -8.9834E-03 2.7724E-03 S11 -1.9613E-01 6.8887E-02 -5.5505E-03 -4.1501E-03 1.9637E-03 -4.6139E-04 7.0090E-05 S12 -1.9639E-01 9.9638E-02 -4.1431E-02 1.3703E-02 -3.4852E-03 6.6731E-04 -9.5395E-05

[0142] Table 14

[0143] Face number A18 A20 A22 A24 A26 A28 A30 S1 -2.5701E-01 1.1180E-01 -2.7649E-02 2.9697E-03 0.0000E+00 0.0000E+00 0.0000E+00 S2 2.3345E+01 -5.1920E+01 5.8115E+01 -3.9667E+01 1.6686E+01 -3.9931E+00 4.1731E-01 S3 3.4687E+02 -4.0767E+02 3.3974E+02 -1.9606E+02 7.4499E+01 -1.6767E+01 1.6934E+00 S4 -2.9598E+02 4.3550E+02 -4.4147E+02 3.0408E+02 -1.3610E+02 3.5730E+01 -4.1779E+00 S5 -1.0997E+02 1.0605E+02 -7.4009E+01 3.6373E+01 -1.1937E+01 2.3477E+00 -2.0922E-01 S6 -5.5628E-02 7.4516E-03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -1.7726E-01 6.2200E-02 -1.3845E-02 1.7948E-03 -1.0496E-04 0.0000E+00 0.0000E+00 S8 1.0930E-01 -4.3145E-02 1.1943E-02 -2.2588E-03 2.7768E-04 -1.9986E-05 6.3922E-07 S9 -2.1574E-03 6.8512E-04 -1.4433E-04 2.0048E-05 -1.7644E-06 8.9189E-08 -1.9738E-09 S10 -5.5411E-04 7.1778E-05 -5.8356E-06 2.7128E-07 -5.5115E-09 0.0000E+00 0.0000E+00 S11 -7.3407E-06 5.3746E-07 -2.7105E-08 8.9896E-10 -1.7668E-11 1.5602E-13 0.0000E+00 S12 1.0130E-05 -7.9223E-07 4.4881E-08 -1.7868E-09 4.7312E-11 -7.4701E-13 5.3160E-15

[0144] Table 15

[0145] Figure 10A The axial chromatic aberration curve of the camera lens group of Example 5 is shown, which represents the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 10B The astigmatism curve of the camera lens group of Example 5 is shown, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 10C The distortion curve of the camera lens group of Example 5 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 10D The longitudinal chromatic aberration curve of the camera lens group of Example 5 is shown, which represents the deviation of different image heights on the imaging plane after the light rays pass through the lens. According to Figures 10A to 10D it can be seen that the camera lens group given in Example 5 can achieve good imaging quality.

[0146] Example 6

[0147] The following refers to Figures 11 to 12D to describe the camera lens group according to Embodiment 6 of the present application. Figure 11 The structural schematic diagram of the camera lens group according to Embodiment 6 of the present application is shown.

[0148] As Figure 11 shown, the camera lens group sequentially includes, from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0149] The first lens E1 has a positive focal power, with its object side S1 being convex and its image side S2 being concave. The second lens E2 has a negative focal power, with its object side S3 being convex and its image side S4 being concave. The third lens E3 has a positive focal power, with its object side S5 being concave and its image side S6 being convex. The fourth lens E4 has a negative focal power, with its object side S7 being convex and its image side S8 being concave. The fifth lens E5 has a positive focal power, with its object side S9 being convex and its image side S10 being convex. The sixth lens E6 has a negative focal power, with its object side S11 being concave and its image side S12 being concave. The filter E7 has an object side S13 and an image side S14. Light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15.

[0150] In this example, the total effective focal length f of the camera lens group is 5.13 mm, the total length TTL of the camera lens group is 6.16 mm, half of the diagonal length of the effective pixel region on the imaging surface S15 of the camera lens group is ImgH = 5.27 mm, the aperture value Fno of the camera lens group is 1.99, and the maximum half field of view Semi - FOV of the camera lens group is 44.5°.

[0151] Table 16 shows the basic parameter table of the camera lens group of Example 6, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 17 and 18 give the higher - order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 for the aspherical mirror surfaces S1 - S12 in Example 6. Among them, each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0152]

[0153] Table 16

[0154] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.3136E-03 7.5212E-03 -7.9968E-03 -3.8276E-02 1.8841E-01 -3.9318E-01 4.7840E-01 S2 -2.8907E-02 -7.0905E-02 7.5967E-01 -4.1250E+00 1.4244E+01 -3.2485E+01 4.9239E+01 S3 -4.8026E-02 8.0144E-02 -6.2982E-01 4.7869E+00 -2.3262E+01 7.6345E+01 -1.7518E+02 S4 -1.6976E-02 5.7136E-02 -2.5697E-01 1.0645E+00 -1.1700E+00 -8.7204E+00 4.8002E+01 S5 -2.6545E-02 -2.6126E-01 2.2170E+00 -1.2374E+01 4.6435E+01 -1.2286E+02 2.3508E+02 S6 -6.6924E-02 1.2397E-02 4.4225E-02 -2.1427E-01 3.6522E-01 -3.5169E-01 2.0073E-01 S7 -1.5205E-01 1.0312E-01 -3.9214E-02 -1.0520E-01 2.7664E-01 -3.6320E-01 3.0526E-01 S8 -1.7142E-01 1.2083E-01 -1.1179E-01 1.3695E-01 -1.7839E-01 1.8885E-01 -1.4663E-01 S9 -6.2144E-02 1.1743E-02 -1.8118E-03 -3.3247E-03 1.0226E-02 -1.1746E-02 7.6980E-03 S10 1.4816E-03 -1.4332E-02 2.2868E-02 -2.4308E-02 1.8695E-02 -9.1698E-03 2.8543E-03 S11 -1.9166E-01 6.6632E-02 -5.2699E-03 -3.9804E-03 1.8628E-03 -4.3348E-04 6.5192E-05 S12 -1.9166E-01 9.5763E-02 -3.9324E-02 1.2895E-02 -3.2651E-03 6.2441E-04 -8.9372E-05

[0155] Table 17

[0156] Face number A18 A20 A22 A24 A26 A28 A30 S1 -3.6156E-01 1.6738E-01 -4.3568E-02 4.8879E-03 0.0000E+00 0.0000E+00 0.0000E+00 S2 -4.8054E+01 2.6357E+01 -2.3593E+00 -7.4809E+00 5.4588E+00 -1.6832E+00 2.0495E-01 S3 2.8605E+02 -3.3413E+02 2.7709E+02 -1.5928E+02 6.0345E+01 -1.3554E+01 1.3676E+00 S4 -1.2344E+02 1.9672E+02 -2.0699E+02 1.4448E+02 -6.4512E+01 1.6705E+01 -1.9093E+00 S5 -3.2929E+02 3.3791E+02 -2.5114E+02 1.3155E+02 -4.6036E+01 9.6579E+00 -9.1813E-01 S6 -6.3160E-02 8.4467E-03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -1.6841E-01 6.0511E-02 -1.3731E-02 1.8092E-03 -1.0725E-04 0.0000E+00 0.0000E+00 S8 8.1506E-02 -3.2061E-02 8.7944E-03 -1.6392E-03 1.9753E-04 -1.3864E-05 4.3006E-07 S9 -3.2851E-03 9.5350E-04 -1.8924E-04 2.5217E-05 -2.1545E-06 1.0657E-07 -2.3210E-09 S10 -5.7488E-04 7.5034E-05 -6.1471E-06 2.8796E-07 -5.8949E-09 0.0000E+00 0.0000E+00 S11 -6.7551E-06 4.8902E-07 -2.4372E-08 7.9843E-10 -1.5496E-11 1.3508E-13 0.0000E+00 S12 9.5199E-06 -7.4802E-07 4.2631E-08 -1.7094E-09 4.5634E-11 -7.2705E-13 5.2246E-15

[0157] Table 18

[0158] Figure 12A Shows the axial chromatic aberration curve of the camera lens group of Example 6, which represents the deviation of the focusing points of light rays of different wavelengths after passing through the lens. Figure 12B Shows the astigmatism curve of the camera lens group of Example 6, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 12C Shows the distortion curve of the camera lens group of Example 6, which represents the distortion magnitude values corresponding to different image heights. Figure 12DShows the longitudinal chromatic aberration curve of the camera lens group of Embodiment 6, which represents the deviation of different image heights on the imaging plane after light passes through the lens. According to Figures 12A to 12D it can be known that the camera lens group given in Embodiment 6 can achieve good imaging quality.

[0159] Example 7

[0160] The following refers to Figures 13 to 14D Describe the camera lens group according to Embodiment 7 of the present application. Figure 13 Shows a schematic structural diagram of the camera lens group according to Embodiment 7 of the present application.

[0161] As Figure 13 shown, the camera lens group sequentially includes, from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0162] The first lens E1 has a positive optical power, its object side surface S1 is a convex surface, and its image side surface S2 is a concave surface. The second lens E2 has a negative optical power, its object side surface S3 is a convex surface, and its image side surface S4 is a concave surface. The third lens E3 has a positive optical power, its object side surface S5 is a convex surface, and its image side surface S6 is a convex surface. The fourth lens E4 has a negative optical power, its object side surface S7 is a concave surface, and its image side surface S8 is a concave surface. The fifth lens E5 has a positive optical power, its object side surface S9 is a convex surface, and its image side surface S10 is a convex surface. The sixth lens E6 has a negative optical power, its object side surface S11 is a concave surface, and its image side surface S12 is a concave surface. The filter E7 has an object side surface S13 and an image side surface S14. Light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15.

[0163] In this example, the total effective focal length f of the camera lens group is 5.15 mm, the total length TTL of the camera lens group is 6.16 mm, half of the diagonal length of the effective pixel region on the imaging surface S15 of the camera lens group is ImgH = 5.27 mm, the aperture value Fno of the camera lens group is 1.97, and the maximum half field of view Semi-FOV of the camera lens group is 44.4°.

[0164] Table 19 shows the basic parameter table of the camera lens group of Embodiment 7, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 20 and 21 give the higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 of the aspherical mirror surfaces S1-S12 that can be used in Embodiment 7. Among them, each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0165]

[0166]

[0167] Table 19

[0168] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.7179E-03 1.8036E-03 1.3809E-02 -8.1151E-02 2.1863E-01 -3.5054E-01 3.5778E-01 S2 -2.9126E-02 -7.1311E-02 6.9700E-01 -3.5128E+00 1.1180E+01 -2.2936E+01 2.9452E+01 S3 -4.7573E-02 6.2861E-02 -5.2606E-01 4.4678E+00 -2.2713E+01 7.5659E+01 -1.7329E+02 S4 -1.9899E-02 8.0595E-02 -3.6689E-01 8.3899E-01 4.5217E+00 -4.1829E+01 1.5742E+02 S5 -3.6674E-02 -1.2163E-01 1.0498E+00 -5.7320E+00 2.0224E+01 -4.9208E+01 8.5039E+01 S6 -6.2942E-02 1.0490E-02 3.9879E-02 -1.9973E-01 3.4199E-01 -3.3048E-01 1.8891E-01 S7 -1.4137E-01 6.5811E-02 9.3871E-02 -4.3031E-01 8.1220E-01 -9.7031E-01 7.8540E-01 S8 -1.7450E-01 1.2821E-01 -1.3057E-01 1.7236E-01 -2.2817E-01 2.4181E-01 -1.8852E-01 S9 -6.2859E-02 7.9031E-03 7.1812E-03 -1.6347E-02 2.3400E-02 -2.1366E-02 1.2810E-02 S10 2.6955E-03 -1.7225E-02 2.5188E-02 -2.4594E-02 1.8027E-02 -8.6532E-03 2.6573E-03 S11 -1.9757E-01 7.1707E-02 -7.6197E-03 -3.2847E-03 1.7268E-03 -4.1641E-04 6.4016E-05 S12 -2.0221E-01 1.0648E-01 -4.5704E-02 1.5411E-02 -3.9570E-03 7.6040E-04 -1.0871E-04

[0169] Table 20

[0170] Face number A18 A20 A22 A24 A26 A28 A30 S1 -2.3544E-01 9.6795E-02 -2.2645E-02 2.3008E-03 0.0000E+00 0.0000E+00 0.0000E+00 S2 -1.9995E+01 -1.0791E+00 1.5926E+01 -1.5496E+01 7.5984E+00 -1.9762E+00 2.1717E-01 S3 2.7954E+02 -3.2031E+02 2.5926E+02 -1.4489E+02 5.3202E+01 -1.1550E+01 1.1238E+00 S4 -3.5982E+02 5.4639E+02 -5.6503E+02 3.9453E+02 -1.7833E+02 4.7166E+01 -5.5469E+00 S5 -1.0574E+02 9.4551E+01 -5.9933E+01 2.6071E+01 -7.3158E+00 1.1703E+00 -7.8227E-02 S6 -5.9483E-02 7.9768E-03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 -4.3398E-01 1.6160E-01 -3.9017E-02 5.5537E-03 -3.5603E-04 0.0000E+00 0.0000E+00 S8 1.0574E-01 -4.2173E-02 1.1784E-02 -2.2478E-03 2.7846E-04 -2.0183E-05 6.4956E-07 S9 -5.2595E-03 1.5024E-03 -2.9705E-04 3.9725E-05 -3.4221E-06 1.7123E-07 -3.7797E-09 S10 -5.2855E-04 6.8051E-05 -5.4905E-06 2.5292E-07 -5.0853E-09 0.0000E+00 0.0000E+00 S11 -6.7538E-06 4.9724E-07 -2.5199E-08 8.3965E-10 -1.6580E-11 1.4710E-13 0.0000E+00 S12 1.1516E-05 -8.9675E-07 5.0500E-08 -1.9955E-09 5.2364E-11 -8.1808E-13 5.7511E-15

[0171] Table 21

[0172] Figure 14A The axial chromatic aberration curve of the camera lens group of Example 7 is shown, which represents the deviation of the convergence points of light rays with different wavelengths after passing through the lens. Figure 14B The astigmatism curve of the camera lens group of Example 7 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 14C The distortion curve of the camera lens group of Example 7 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 14D The longitudinal chromatic aberration curve of the camera lens group of Example 7 is shown, which represents the deviation of different image heights on the imaging plane after the light rays pass through the lens. According to Figures 14A to 14D It can be seen that the camera lens group given in Example 7 can achieve good imaging quality.

[0173] Example 8

[0174] The following refers to Figures 15 to 16D Describe the camera lens group according to Embodiment 8 of the present application. Figure 15 The structural schematic diagram of the camera lens group according to Embodiment 8 of the present application is shown.

[0175] As Figure 15 shown, the camera lens group sequentially includes, from the object side to the image side: a diaphragm STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7, and an imaging surface S15.

[0176] The first lens E1 has a positive focal power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has a negative focal power, its object side S3 is convex, and its image side S4 is concave. The third lens E3 has a positive focal power, its object side S5 is convex, and its image side S6 is convex. The fourth lens E4 has a negative focal power, its object side S7 is convex, and its image side S8 is concave. The fifth lens E5 has a positive focal power, its object side S9 is convex, and its image side S10 is convex. The sixth lens E6 has a negative focal power, its object side S11 is concave, and its image side S12 is concave. The filter E7 has an object side S13 and an image side S14. The light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15.

[0177] In this example, the total effective focal length f of the camera lens group is 5.13 mm, the total length TTL of the camera lens group is 6.02 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the camera lens group is ImgH = 5.27 mm, the aperture value Fno of the camera lens group is 1.99, and the maximum half field of view angle Semi - FOV of the camera lens group is 45.5°.

[0178] Table 22 shows the basic parameter table of the camera lens group of Example 8, where the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm). Tables 23 and 24 give the higher - order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 of the aspherical mirror surfaces S1 - S12 that can be used in Example 8. Among them, each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0179]

[0180] Table 22

[0181] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.4908E-02 -1.7392E-01 1.3013E+00 -6.1393E+00 1.9442E+01 -4.2881E+01 6.7395E+01 S2 -6.8648E-02 4.7440E-01 -3.9014E+00 2.0753E+01 -7.4013E+01 1.8422E+02 -3.2781E+02 S3 -1.6949E-02 -4.5612E-01 4.1252E+00 -2.1476E+01 7.5275E+01 -1.8497E+02 3.2599E+02 S4 -2.7651E-02 1.8511E-01 -1.1820E+00 6.8038E+00 -2.9791E+01 9.9626E+01 -2.5043E+02 S5 -3.6715E-02 -1.5167E-01 1.4313E+00 -8.2485E+00 3.1045E+01 -8.0676E+01 1.4847E+02 S6 -5.3156E-02 -4.8771E-02 5.9339E-01 -3.4213E+00 1.2215E+01 -2.9559E+01 5.0201E+01 S7 -1.0994E-01 1.5337E-02 -1.2362E-02 2.3314E-01 -8.2741E-01 1.5893E+00 -1.9954E+00 S8 -1.0941E-01 3.2890E-02 -7.8781E-02 2.6680E-01 -5.1539E-01 6.3570E-01 -5.3358E-01 S9 -5.3682E-03 -2.8881E-02 2.3830E-02 -1.5832E-02 9.9539E-03 -5.6374E-03 2.6617E-03 S10 3.4410E-02 -3.2773E-02 3.8461E-02 -3.6259E-02 2.4310E-02 -1.0926E-02 3.2909E-03 S11 -1.8139E-01 8.5896E-02 -2.9185E-02 8.3710E-03 -2.0130E-03 4.0069E-04 -6.4462E-05 S12 -2.1297E-01 1.2875E-01 -6.4498E-02 2.4719E-02 -7.0330E-03 1.4754E-03 -2.2852E-04

[0182] Table 23

[0183] Face number A18 A20 A22 A24 A26 A28 A30 S1 -7.6374E+01 6.2488E+01 -3.6536E+01 1.4873E+01 -4.0011E+00 6.3883E-01 -4.5806E-02 S2 4.2187E+02 -3.9288E+02 2.6184E+02 -1.2157E+02 3.7295E+01 -6.7866E+00 5.5409E-01 S3 -4.1689E+02 3.8740E+02 -2.5894E+02 1.2133E+02 -3.7838E+01 7.0583E+00 -5.9622E-01 S4 4.6473E+02 -6.2675E+02 6.0306E+02 -4.0200E+02 1.7604E+02 -4.5490E+01 5.2521E+00 S5 -1.9570E+02 1.8467E+02 -1.2319E+02 5.6422E+01 -1.6780E+01 2.8965E+00 -2.1811E-01 S6 -6.0871E+01 5.2936E+01 -3.2745E+01 1.4057E+01 -3.9786E+00 6.6738E-01 -5.0228E-02 S7 1.7439E+00 -1.0850E+00 4.8141E-01 -1.4959E-01 3.1041E-02 -3.8695E-03 2.1915E-04 S8 3.1346E-01 -1.2981E-01 3.7619E-02 -7.4532E-03 9.6087E-04 -7.2600E-05 2.4387E-06 S9 -1.0112E-03 2.9116E-04 -5.9501E-05 8.1815E-06 -7.1374E-07 3.5581E-08 -7.7136E-10 S10 -6.7410E-04 9.4710E-05 -9.0781E-06 5.7875E-07 -2.3169E-08 5.1518E-10 -4.6339E-12 S11 8.0966E-06 -7.6730E-07 5.3133E-08 -2.5892E-09 8.3798E-11 -1.6137E-12 1.3974E-14 S12 2.6135E-05 -2.1940E-06 1.3316E-07 -5.6729E-09 1.6062E-10 -2.7102E-12 2.0597E-14

[0184] Table 24

[0185] Figure 16A Shows the axial chromatic aberration curve of the camera lens group of Example 8, which represents the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 16B Shows the astigmatism curve of the camera lens group of Example 8, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 16C Shows the distortion curve of the camera lens group of Example 8, which represents the distortion magnitude values corresponding to different image heights. Figure 16DThe longitudinal chromatic aberration curve of the camera lens group of Embodiment 8 is shown, which represents the deviation of different image heights on the imaging surface after light passes through the lens. According to Figures 16A to 16D it can be known that the camera lens group given in Embodiment 8 can achieve good imaging quality.

[0186] In summary, Embodiments 1 to 8 respectively satisfy the relationships shown in Table 25.

[0187]

[0188] Table 25

[0189] The present application also provides a camera device, and its electronic photosensitive element can be a charge-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 a camera module integrated on a mobile electronic device such as a mobile phone. The camera device is equipped with the camera lens group described above.

[0190] The above description is only the preferred embodiments of the present application and the description of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and 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 technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. Camera lens group, characterized in that, It sequentially includes, from the object side to the image side along the optical axis: A first lens with a positive optical power, whose object side is convex and image side is concave; A second lens with a negative optical power, whose object side is convex and image side is concave; A third lens with a positive optical power, whose image side is convex; A fourth lens with a negative optical power, whose image side is concave; A fifth lens with a positive optical power, whose object side is convex and image side is convex; A sixth lens with a negative optical power, whose image side is concave; Among them, the number of lenses with optical power in the camera lens group is six, and the maximum semi-field of view Semi-FOV of the camera lens group and the total effective focal length f of the camera lens group satisfy: 4.92 ≤ tan 2 (Semi-FOV) × f ≤ 5.36, and the effective focal length f1 of the first lens and the effective focal length f3 of the third lens satisfy: 4.76 ≤ f3 / f1 ≤ 10.

56.

2. The camera lens group according to claim 1, characterized in that, The distance TTL from the object side of the first lens to the imaging surface of the camera lens group on the optical axis and half of the diagonal length of the effective pixel region on the imaging surface of the camera lens group satisfy: 1.14 ≤ TTL / ImgH < 1.

20.

3. The camera lens group according to claim 1, wherein Half of the diagonal length ImgH of the effective pixel region on the imaging surface of the camera lens group satisfies: 5.25 mm < ImgH ≤ 5.27 mm.

4. The camera lens group according to claim 1, characterized in that, The combined focal length f23 of the second lens and the third lens and the distance BFL from the image side of the sixth lens to the imaging surface of the camera lens group on the optical axis satisfy: -57.00 < f23 / BFL < -24.

50.

5. The camera lens group according to claim 1, wherein, The radius of curvature R3 of the object side of the second lens and the radius of curvature R4 of the image side of the second lens satisfy: 1.56 ≤ R3 / R4 ≤ 2.

36.

6. The camera lens group according to claim 1, characterized in that, The radius of curvature R6 of the image side of the third lens and the effective focal length f6 of the sixth lens satisfy: 4.7 ≤ R6 / f6 ≤ 8.

7. The camera lens group according to claim 1, wherein The central thickness CT6 of the sixth lens on the optical axis and the spacing distance T56 between the fifth lens and the sixth lens on the optical axis satisfy: 2.99 ≤ (T56 + CT6) / (T56 - CT6) ≤ 7.

72.

8. The camera lens group according to claim 1, characterized in that, The edge thickness ET2 of the second lens and the edge thickness ET5 of the fifth lens satisfy: 4.3 ≤ (ET2 + ET5) / (ET2 - ET5) ≤ 19.

66.

9. The camera lens group according to claim 1, characterized in that, The distance SAG41 on the optical axis from the intersection of the object side of the fourth lens and the optical axis to the vertex of the effective radius of the object side of the fourth lens and the distance SAG42 on the optical axis from the intersection of the image side of the fourth lens and the optical axis to the vertex of the effective radius of the image side of the fourth lens satisfy: 6.10 < (SAG41 + SAG42) / (SAG41 - SAG42) ≤ 9.

10. The camera lens group according to any one of claims 1 to 9, characterized in that, The maximum effective radius DT51 of the object side of the fifth lens and the maximum effective radius DT52 of the image side of the fifth lens satisfy: 16.16 ≤ (DT51 + DT52) / (DT51 - DT52) ≤ 22.

66.

11. An electronic device, characterized in that, It includes the camera lens group according to claim 1 and an imaging element for converting the optical pattern formed by the camera lens group into an electrical signal.

Images