Camera lens group

Abstract

The present application discloses a camera lens assembly, which includes, in order from the object side to the image side along the optical axis: a first lens having optical power, whose object-side surface is convex and whose image-side surface is concave; a second lens having positive optical power, whose object-side surface is convex and whose image-side surface is concave; a third lens having negative optical power, whose object-side surface is concave and whose image-side surface is concave; a fourth lens having positive optical power, whose object-side surface is convex and whose image-side surface is concave; a fifth lens having optical power; and a sixth lens having optical power, whose object-side surface is convex and whose image-side surface is concave. The F number Fno of the camera lens assembly satisfies: Fno≤1.45.

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] Currently, the market for portable electronic products such as mobile phones is increasingly demanding higher camera quality. Virtually every phone is equipped with at least one large-aperture camera. The larger the aperture of a camera, the more light can pass through it per unit time, resulting in higher image clarity.

[0003] Typically, the larger the aperture of a camera, the smaller its F-number. However, as the F-number decreases, especially in the 1.2-1.5 range, the first few lenses in the camera lens assembly become very large and highly sensitive, making conventional processing and assembly capabilities unable to meet the mass production requirements of actual production. Summary of the Invention

[0004] In one aspect, the present application provides a camera lens assembly comprising, in order from the object side to the image side along the optical axis: a first lens having optical power, the object-side surface of which is convex and the image-side surface of which is concave; a second lens having positive optical power, the object-side surface of which is convex and the image-side surface of which is concave; a third lens having negative optical power, the object-side surface of which is concave and the image-side surface of which is concave; a fourth lens having positive optical power, the object-side surface of which is convex and the image-side surface of which is concave; a fifth lens having optical power; and a sixth lens having optical power, the object-side surface of which is convex and the image-side surface of which is concave. The F number Fno of the camera lens assembly can satisfy the following: Fno≤1.45.

[0005] In one embodiment, there is at least one aspherical mirror surface from the object side surface of the first lens to the image side surface of the sixth lens.

[0006] In one embodiment, the combined focal length f23 of the second lens and the third lens and the total effective focal length f of the camera lens assembly may satisfy the following relationship: 1.00<f23 / f<3.50.

[0007] In one embodiment, the effective focal length f4 of the fourth lens and the curvature radius R12 of the image-side surface of the sixth lens may satisfy: 2.00<f4 / R12<8.00.

[0008] In one embodiment, the combined focal length f45 of the fourth lens and the fifth lens and the distance BFL on the optical axis from the image side surface of the sixth lens to the imaging plane of the camera lens assembly may satisfy: 7.00<f45 / BFL<11.00.

[0009] In one embodiment, a curvature radius R3 of the object-side surface of the second lens and a curvature radius R4 of the image-side surface of the second lens may satisfy: 7.00<R4 / R3<9.00.

[0010] In one embodiment, a curvature radius R7 of the object-side surface of the fourth lens and a curvature radius R8 of the image-side surface of the fourth lens may satisfy: 7.00<(R7+R8) / (R8-R7)<10.00.

[0011] In one embodiment, a center thickness CT2 of the second lens on the optical axis and a spacing distance T23 between the second lens and the third lens on the optical axis may satisfy: 11.00<CT2 / T23<17.00.

[0012] In one embodiment, a center thickness CT6 of the sixth lens on the optical axis and a spacing distance T45 between the fourth lens and the fifth lens on the optical axis may satisfy: 3.00<T45 / CT6<6.00.

[0013] In one embodiment, the distance SAG11 from the intersection of the object side surface of the first lens and the optical axis to the vertex of the effective radius of the object side surface of the first lens on the optical axis and the distance SAG12 from the intersection of the image side surface of the first lens and the optical axis to the vertex of the effective radius of the image side surface of the first lens on the optical axis may satisfy: 2.00<(SAG11+SAG12) / (SAG11-SAG12)<4.00.

[0014] In one embodiment, an edge thickness ET3 of the third lens and an edge thickness ET4 of the fourth lens may satisfy: 3.00<(ET3+ET4) / (ET3-ET4)<5.00.

[0015] 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 the following: 47.00<(DT11+DT12) / (DT11-DT12)<61.00.

[0016] In one embodiment, the camera lens assembly further includes an aperture stop disposed between the object side and the first lens.

[0017] On the other hand, the present application provides a camera lens assembly, which includes, in order from the object side to the image side along the optical axis: a first lens having optical power, whose object side surface is convex and whose image side surface is concave; a second lens having positive optical power, whose object side surface is convex and whose image side surface is concave; a third lens having negative optical power, whose object side surface is concave and whose image side surface is concave; a fourth lens having positive optical power, whose object side surface is convex and whose image side surface is concave; a fifth lens having optical power; and a sixth lens having optical power, whose object side surface is convex and whose image side surface is concave. 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 can satisfy the following: 47.00<(DT11+DT12) / (DT11-DT12)<61.00.

[0018] The present application provides a camera lens group suitable for lightweight electronic products by reasonably allocating optical focal length and optimizing optical parameters, which has at least one beneficial effect such as ultra-small F number, long focus and good imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 1 shows a schematic structural diagram of a camera lens assembly according to Example 1 of the present application;

[0021] Figures 2A to 2D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 1 are shown respectively;

[0022] Figure 3 A schematic structural diagram of a camera lens assembly according to embodiment 2 of the present application is shown;

[0023] Figures 4A to 4D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 2 are shown respectively;

[0024] Figure 5 1 shows a schematic structural diagram of a camera lens assembly according to Example 3 of the present application;

[0025] 6A to 6D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 3 are shown respectively;

[0026] Figure 7 1 shows a schematic structural diagram of a camera lens assembly according to embodiment 4 of the present application;

[0027] Figures 8A to 8DThe axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 4 are shown respectively;

[0028] Figure 9 1 shows a schematic structural diagram of a camera lens assembly according to embodiment 5 of the present application;

[0029] 10A to 10D axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 5 are respectively shown;

[0030] Figure 11 1 shows a schematic structural diagram of a camera lens assembly according to Example 6 of the present application;

[0031] 12A to 12D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 6 are shown respectively;

[0032] Figure 13 A schematic structural diagram of a camera lens assembly according to embodiment 7 of the present application is shown; and

[0033] 14A to 14D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 7 are shown respectively. DETAILED DESCRIPTION

[0034] For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely 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.

[0035] It should be noted that in this specification, the terms "first," "second," "third," etc., are used solely to distinguish one feature from another and do not limit the features. Thus, the first lens discussed below could also be referred to as the second lens or the third lens without departing from the teachings of this application.

[0036] In the drawings, the thickness, size, and shape of the lenses are slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical and aspherical surfaces shown in the drawings are provided by way of example. That is, the shapes of the spherical and aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustration only and are not drawn strictly to scale.

[0037] In this article, the paraxial region refers to the area near the optical axis. If a lens surface is convex and the location of the convex surface is undefined, it means that the lens surface is convex at least in the paraxial region. If a lens surface is concave and the location of the concave surface is undefined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is called the object-side surface of the lens, and the surface of each lens closest to the imaging plane is called the image-side surface of the lens.

[0038] 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 preclude 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 list of 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.

[0039] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0040] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this 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.

[0041] The features, principles and other aspects of the present application are described in detail below.

[0042] The camera lens assembly 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 along the optical axis from the object side to the image side. Any two adjacent lenses among the first through sixth lenses may be spaced apart by a distance.

[0043] In exemplary embodiments, the first lens may have positive or negative optical power, and its object-side surface may be convex and its image-side surface may be concave; the second lens may have positive optical power, its object-side surface may be convex and its image-side surface may be concave; the third lens may have negative optical power, its object-side surface may be concave and its image-side surface may be concave; the fourth lens may have positive optical power, its object-side surface may be convex and its image-side surface may be concave; the fifth lens may have positive or negative optical power; and the sixth lens may have positive or negative optical power, its object-side surface may be convex and its image-side surface may be concave.

[0044] In an exemplary embodiment, the first lens is a convex-concave type, the second lens is a convex-concave type, the third lens is a concave-concave type, the fourth lens is a convex-concave type, and the image side surface of the sixth lens is concave, which is beneficial for reducing the F number of the system and making the central light have a good converging effect, thereby helping to improve the image quality of the camera lens group.

[0045] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following condition: Fno ≤ 1.45, where Fno is the F-number of the camera lens assembly. Meeting Fno ≤ 1.45 helps increase the amount of light passing through per unit time, achieving higher imaging clarity with a smaller pixel pitch.

[0046] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 1.00 < f23 / f < 3.50, where f23 is the combined focal length of the second and third lenses, and f is the total effective focal length of the camera lens assembly. More specifically, f23 and f may further satisfy the following relationship: 1.50 < f23 / f < 3.20. This relationship of 1.00 < f23 / f < 3.50 not only improves the aberration correction capability of the camera lens assembly, but also prevents excessive focal length concentration on the second and third lenses, thereby reducing their sensitivity.

[0047] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 2.00 < f4 / R12 < 8.00, where f4 is the effective focal length of the fourth lens element, and R12 is the radius of curvature of the image-side surface of the sixth lens element. More specifically, f4 and R12 may further satisfy the following relationship: 2.60 < f4 / R12 < 7.60. This relationship, 2.00 < f4 / R12 < 8.00, improves the convergence of central light rays and increases the size of the imaging surface.

[0048] In an exemplary embodiment, the camera lens assembly according to the present application can satisfy the following relationship: 7.00 < f45 / BFL < 11.00, where f45 is the combined focal length of the fourth and fifth lenses, and BFL is the distance on the optical axis from the image-side surface of the sixth lens to the imaging plane of the camera lens assembly. More specifically, f45 and BFL can further satisfy the following relationship: 7.50 < f45 / BFL < 11.00. Meeting this relationship improves the convergence of central light rays, increases the size of the imaging plane, and avoids issues such as difficulty focusing subsequent modules due to an excessively small back-focus BFL.

[0049] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 7.00 < R4 / R3 < 9.00, where R3 is the radius of curvature of the object-side surface of the second lens element, and R4 is the radius of curvature of the image-side surface of the second lens element. More specifically, R4 and R3 may further satisfy the following relationship: 7.10 < R4 / R3 < 9.00. This relationship improves the aberration correction capability of the camera lens assembly while reducing the sensitivity of the second lens element, facilitating subsequent processing.

[0050] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following conditions: 7.00 < (R7 + R8) / (R8 - R7) < 10.00, where R7 is the radius of curvature of the object-side surface of the fourth lens, and R8 is the radius of curvature of the image-side surface of the fourth lens. More specifically, R7 and R8 may further satisfy the following conditions: 7.30 < (R7 + R8) / (R8 - R7) < 9.90. Satisfying the condition of 7.00 < (R7 + R8) / (R8 - R7) < 10.00 can both improve the aberration correction capability of the camera lens assembly and avoid problems such as processing difficulties caused by the increased sensitivity of the fourth lens.

[0051] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 11.00 < CT2 / T23 < 17.00, where CT2 is the center thickness of the second lens element on the optical axis, and T23 is the distance between the second and third lenses on the optical axis. More specifically, CT2 and T23 may further satisfy the following relationship: 11.70 < CT2 / T23 < 17.00. This relationship facilitates correcting optical distortion in the camera lens assembly while also shortening the overall length of the lens assembly.

[0052] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 3.00 < T45 / CT6 < 6.00, where CT6 is the center thickness of the sixth lens element on the optical axis, and T45 is the distance between the fourth and fifth lenses on the optical axis. More specifically, T45 and CT6 may further satisfy the following relationship: 3.00 < T45 / CT6 < 5.10. This relationship avoids issues such as mold formation difficulties caused by an overly thin sixth lens element and difficulties in subsequent lens barrel design caused by an excessively large distance between the fourth and fifth lenses.

[0053] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 2.00<(SAG11+SAG12) / (SAG11-SAG12)<4.00, wherein SAG11 is the distance from the intersection of the object side surface of the first lens and the optical axis to the vertex of the effective radius of the object side surface of the first lens on the optical axis, and SAG12 is the distance from the intersection of the image side surface of the first lens and the optical axis to the vertex of the effective radius of the image side surface of the first lens on the optical axis. More specifically, SAG11 and SAG12 may further satisfy: 2.30<(SAG11+SAG12) / (SAG11-SAG12)<3.30. Satisfying 2.00<(SAG11+SAG12) / (SAG11-SAG12)<4.00 helps to improve the imaging quality of the camera lens assembly by utilizing the first lens while avoiding problems such as processing difficulties caused by the increased sensitivity of the first lens.

[0054] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following: 3.00 < (ET3 + ET4) / (ET3 - ET4) < 5.00, where ET3 is the edge thickness of the third lens element, and ET4 is the edge thickness of the fourth lens element. Satisfying 3.00 < (ET3 + ET4) / (ET3 - ET4) < 5.00 helps improve the manufacturability of the third and fourth lenses while also ensuring better imaging quality in the camera lens assembly.

[0055] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following: 47.00 < (DT11 + DT12) / (DT11 - DT12) < 61.00, where DT11 is the maximum effective radius of the object-side surface of the first lens element, and DT12 is the maximum effective radius of the image-side surface of the first lens element. More specifically, DT11 and DT12 may further satisfy the following: 47.60 < (DT11 + DT12) / (DT11 - DT12) < 60.50. This 47.00 < (DT11 + DT12) / (DT11 - DT12) < 61.00 helps reduce the F-number of the camera lens assembly, resulting in higher imaging quality.

[0056] In an exemplary embodiment, the camera lens assembly according to the present application further includes an aperture stop disposed between the object side and the first lens. Optionally, the camera lens assembly may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0057] This application proposes a camera lens assembly featuring miniaturization, an ultra-small F-number, a long focal length, high resolution, and high imaging quality. The camera lens assembly according to the aforementioned embodiment of this application can utilize multiple lens elements, such as the six lens elements described above. By rationally allocating the focal power, surface shape, center thickness of each lens element, and the on-axis spacing between lenses, the lens assembly can effectively converge incident light, reduce the overall optical length of the imaging lens, and improve the machinability of the imaging lens element, making the camera lens assembly more suitable for production and processing.

[0058] In an 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 surface of the first lens to the image side surface of the sixth lens is an aspherical mirror surface. The characteristic of an 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 surface and the image side surface of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens is an aspherical mirror surface. Optionally, the object side surface and the image side surface of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are all aspherical mirror surfaces.

[0059] However, those skilled in the art will appreciate that the number of lenses comprising the camera lens assembly can be varied to achieve the various results and advantages described herein without departing from the technical solutions claimed in this application. For example, while six lenses are described in the embodiments, the camera lens assembly is not limited to six lenses. If desired, the camera lens assembly can also include other numbers of lenses.

[0060] Specific embodiments of the camera lens assembly applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0061] Example 1

[0062] The following reference Figures 1 to 2D A camera lens assembly according to embodiment 1 of the present application is described. Figure 1 A structural schematic diagram of a camera lens assembly according to Example 1 of the present application is shown.

[0063] like Figure 1 As shown, the camera lens group includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0064] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative focal power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has negative focal power, with its object-side surface S9 being convex and its image-side surface S10 being concave. The sixth lens E6 has negative focal power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0065] Table 1 shows the basic parameters of the camera lens assembly of Example 1, wherein the units of curvature radius, thickness / distance and focal length are all millimeters (mm).

[0066]

[0067] Table 1

[0068] In this example, the total effective focal length f of the camera lens group is 5.88 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 S15 of the camera lens group) is 6.25 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the camera lens group ImgH is 2.50 mm, half of the maximum field of view Semi-FOV of the camera lens group is 22.7°, and the F number Fno of the camera lens group is 1.33.

[0069] In Example 1, the object-side surface and the image-side surface of any lens among the first lens E1 to the sixth lens E6 are both aspherical surfaces. The surface shape x of each aspherical lens can be defined by, but is not limited to, the following aspherical surface formula:

[0070]

[0071] Wherein, x is the distance vector height of the aspheric surface from the vertex of the aspheric surface 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 conic coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. The following Tables 2-1 and 2-2 give 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, A40, A41, A42, A43, A44, A45, A46, A47, A50, A51, A52, A53, A54, A55, A56, A57, A58, A59, A60, A61, A71, A72, A73, A74, A75, A80, A81, A9, A10, A11, A12, A13, A14, A15 10 、A 12 、A 14 、A 16 、A 18 、A 20 、A 22 、A 24 、A 26 、A 28 and A 30 .

[0072]

[0073]

[0074] Table 2-1

[0075] Face number A18 A20 A22 A24 A26 A28 A30 S1 6.6010E-03 -2.1849E-03 5.0911E-04 -8.1922E-05 8.6837E-06 -5.4666E-07 1.5506E-08 S2 1.3702E-01 -3.9720E-02 8.2966E-03 -1.2135E-03 1.1772E-04 -6.7891E-06 1.7585E-07 S3 1.2316E-01 -2.5057E-02 1.5135E-03 6.3274E-04 -1.8564E-04 2.1093E-05 -9.2580E-07 S4 2.3378E+00 -9.8998E-01 2.9918E-01 -6.3497E-02 9.0402E-03 -7.7805E-04 3.0657E-05 S5 3.6627E+00 -1.8738E+00 7.0103E-01 -1.8671E-01 3.3440E-02 -3.5964E-03 1.7490E-04 S6 1.6138E+02 -1.3673E+02 8.2635E+01 -3.4691E+01 9.6028E+00 -1.5750E+00 1.1589E-01 S7 -4.6070E+02 4.4091E+02 -3.0088E+02 1.4272E+02 -4.4681E+01 8.2968E+00 -6.9170E-01 S8 1.8867E+03 -2.2037E+03 1.8197E+03 -1.0370E+03 3.8780E+02 -8.5593E+01 8.4473E+00 S9 -1.0543E+00 3.2097E-01 -4.3834E-03 -3.6869E-02 1.4260E-02 -2.4058E-03 1.6042E-04 S10 1.2194E+00 -4.3648E-01 1.0121E-01 -1.2806E-02 2.2462E-04 1.4919E-04 -1.3544E-05 S11 -4.2502E-02 2.0164E-02 -6.1779E-03 1.2390E-03 -1.5773E-04 1.1625E-05 -3.8064E-07 S12 -2.1396E-01 7.2068E-02 -1.7422E-02 2.9459E-03 -3.3070E-04 2.2137E-05 -6.6872E-07

[0076] Table 2-2

[0077] Figure 2A The axial chromatic aberration curve of the camera lens set of Example 1 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the lens. Figure 2B The astigmatism curve of the imaging lens set of Example 1 is shown, which indicates meridional field curvature and 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 image heights. Figure 2D The 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. Figures 2A to 2D It can be seen that the camera lens assembly provided in Example 1 can achieve good imaging quality.

[0078] Example 2

[0079] The following reference Figures 3 to 4D The 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 those in Embodiment 1 will be omitted. Figure 3 A structural schematic diagram of a camera lens assembly according to embodiment 2 of the present application is shown.

[0080] like Figure 3As shown, the camera lens group includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0081] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative focal power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being convex and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0082] In this example, the total effective focal length f of the camera lens group is 5.89 mm, the total length TTL of the camera lens group is 6.14 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 2.55 mm, half of the maximum field of view Semi-FOV of the camera lens group is 23.4°, and the F number Fno of the camera lens group is 1.39.

[0083] Table 3 shows the basic parameters of the camera lens assembly of Example 2, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 4-1 and 4-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 2, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0084]

[0085] Table 3

[0086]

[0087]

[0088] Table 4-1

[0089] Face number A18 A20 A22 A24 A26 A28 A30 S1 -1.6262E-01 5.8421E-02 -1.4863E-02 2.6152E-03 -3.0251E-04 2.0687E-05 -6.3344E-07 S2 4.7040E-01 -1.5425E-01 3.6322E-02 -5.9761E-03 6.5138E-04 -4.2209E-05 1.2295E-06 S3 1.9082E-01 -2.7731E-02 -4.1256E-03 2.9278E-03 -6.2964E-04 6.5947E-05 -2.8233E-06 S4 5.4020E+00 -2.4639E+00 7.9876E-01 -1.8082E-01 2.7273E-02 -2.4689E-03 1.0161E-04 S5 1.2916E+01 -7.0926E+00 2.7827E+00 -7.6243E-01 1.3856E-01 -1.4999E-02 7.3134E-04 S6 -1.6119E+01 2.1164E+01 -1.6128E+01 7.7694E+00 -2.3385E+00 4.0267E-01 -3.0331E-02 S7 -1.6131E+02 1.1061E+02 -5.0623E+01 1.4085E+01 -1.7608E+00 -9.7534E-02 3.9054E-02 S8 1.0675E+03 -1.0796E+03 7.7334E+02 -3.8294E+02 1.2454E+02 -2.3908E+01 2.0502E+00 S9 -3.7298E+00 1.8444E+00 -6.4831E-01 1.5758E-01 -2.5129E-02 2.3622E-03 -9.9146E-05 S10 2.9540E-01 -1.4756E-01 5.0817E-02 -1.1885E-02 1.8009E-03 -1.5923E-04 6.2262E-06 S11 8.5449E-01 -3.1074E-01 8.0626E-02 -1.4524E-02 1.7236E-03 -1.2106E-04 3.8107E-06 S12 1.6053E-01 -4.9524E-02 1.1061E-02 -1.7357E-03 1.8107E-04 -1.1248E-05 3.1404E-07

[0090] Table 4-2

[0091] Figure 4A The axial chromatic aberration curve of the camera lens set of Example 2 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the lens. Figure 4BThe astigmatism curve of the imaging lens set of Example 2 is shown, which indicates meridional field curvature and 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 image heights. Figure 4D The 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. Figures 4A to 4D It can be seen that the camera lens assembly provided in Example 2 can achieve good imaging quality.

[0092] Example 3

[0093] The following reference Figures 5 to 6D A camera lens assembly according to Embodiment 3 of the present application is described. Figure 5 A structural schematic diagram of a camera lens assembly according to Example 3 of the present application is shown.

[0094] like Figure 5 As shown, the camera lens group includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

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

[0096] In this example, the total effective focal length f of the camera lens group is 5.89 mm, the total length TTL of the camera lens group is 6.25 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 2.56 mm, half of the maximum field of view Semi-FOV of the camera lens group is 23.2°, and the F number Fno of the camera lens group is 1.32.

[0097] Table 5 shows the basic parameters of the camera lens assembly of Example 3, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 6-1 and 6-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 3, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0098]

[0099] Table 5

[0100]

[0101]

[0102] Table 6-1

[0103] Face number A18 A20 A22 A24 A26 A28 A30 S1 -5.4540E-02 1.7711E-02 -4.0813E-03 6.5128E-04 -6.8386E-05 4.2479E-06 -1.1820E-07 S2 3.3675E-01 -1.0456E-01 2.3411E-02 -3.6765E-03 3.8389E-04 -2.3921E-05 6.7270E-07 S3 1.8902E-03 4.5590E-02 -2.3918E-02 6.5697E-03 -1.0650E-03 9.6457E-05 -3.7791E-06 S4 1.4380E+00 -5.6647E-01 1.5837E-01 -3.0838E-02 4.0007E-03 -3.1301E-04 1.1253E-05 S5 5.4069E+00 -2.6696E+00 9.5970E-01 -2.4445E-01 4.1773E-02 -4.2888E-03 1.9961E-04 S6 2.0380E+01 -1.4716E+01 8.0167E+00 -3.1805E+00 8.6364E-01 -1.4287E-01 1.0811E-02 S7 -3.3643E+02 3.0847E+02 -2.0251E+02 9.2747E+01 -2.8127E+01 5.0729E+00 -4.1174E-01 S8 7.9409E+02 -8.4492E+02 6.3972E+02 -3.3627E+02 1.1660E+02 -2.3973E+01 2.2131E+00 S9 1.4705E+00 -8.8110E-01 3.7544E-01 -1.1064E-01 2.1381E-02 -2.4327E-03 1.2338E-04 S10 1.2277E+00 -5.4176E-01 1.7296E-01 -3.8839E-02 5.8169E-03 -5.2199E-04 2.1262E-05 S11 -6.3204E-01 2.4012E-01 -6.5414E-02 1.2427E-02 -1.5609E-03 1.1640E-04 -3.8999E-06 S12 -1.2463E-01 4.2313E-02 -1.0323E-02 1.7648E-03 -2.0068E-04 1.3632E-05 -4.1846E-07

[0104] Table 6-2

[0105] Figure 6A The axial chromatic aberration curve of the camera lens set of Example 3 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the lens. Figure 6B The astigmatism curve of the imaging lens set of Example 3 is shown, which indicates meridional field curvature and 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 image heights. Figure 6D The chromatic aberration curve of the camera lens set of Example 3 is shown, which represents the deviation of the different image heights on the imaging surface after the light passes through the lens. 6A to 6D It can be seen that the camera lens assembly provided in Example 3 can achieve good imaging quality.

[0106] Example 4

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

[0108] like Figure 7 As shown, the camera lens group includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0109] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative focal power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has negative focal power, with its object-side surface S9 being convex and its image-side surface S10 being concave. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0110] In this example, the total effective focal length f of the camera lens group is 5.91 mm, the total length TTL of the camera lens group is 6.38 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 2.58 mm, half of the maximum field of view Semi-FOV of the camera lens group is 23.2°, and the F number Fno of the camera lens group is 1.28.

[0111] Table 7 shows the basic parameters of the camera lens assembly of Example 4, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 8-1 and 8-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 4, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0112]

[0113] Table 7

[0114]

[0115]

[0116] Table 8-1

[0117] Face number A18 A20 A22 A24 A26 A28 A30 S1 -3.0428E-02 9.0352E-03 -1.9087E-03 2.7983E-04 -2.7046E-05 1.5489E-06 -3.9792E-08 S2 1.9294E-01 -5.5539E-02 1.1558E-02 -1.6908E-03 1.6473E-04 -9.5910E-06 2.5229E-07 S3 1.0960E-01 -2.0134E-02 9.1766E-04 5.1342E-04 -1.3404E-04 1.4223E-05 -5.9271E-07 S4 -2.4166E-01 1.6613E-01 -6.6415E-02 1.6812E-02 -2.6613E-03 2.4117E-04 -9.5700E-06 S5 3.0091E+00 -1.4324E+00 5.0393E-01 -1.2659E-01 2.1391E-02 -2.1706E-03 9.9652E-05 S6 7.1562E+01 -5.9766E+01 3.6034E+01 -1.5205E+01 4.2507E+00 -7.0626E-01 5.2731E-02 S7 -7.4672E+01 6.5185E+01 -4.0867E+01 1.7911E+01 -5.2033E+00 8.9910E-01 -6.9881E-02 S8 3.0996E+02 -2.9618E+02 2.0221E+02 -9.6170E+01 3.0258E+01 -5.6588E+00 4.7614E-01 S9 -6.4603E-01 2.7000E-01 -7.1643E-02 1.0121E-02 -1.3443E-04 -1.6378E-04 1.6282E-05 S10 1.9432E+00 -8.5656E-01 2.7307E-01 -6.1132E-02 9.1007E-03 -8.0805E-04 3.2356E-05 S11 -8.8784E-01 3.2559E-01 -8.5649E-02 1.5713E-02 -1.9059E-03 1.3724E-04 -4.4399E-06 S12 -1.8654E-01 6.0006E-02 -1.3909E-02 2.2633E-03 -2.4532E-04 1.5907E-05 -4.6675E-07

[0118] Table 8-2

[0119] Figure 8A The axial chromatic aberration curve of the camera lens set of Example 4 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the lens. Figure 8B The astigmatism curve of the imaging lens set of Example 4 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 8C The distortion curve of the camera lens assembly of Example 4 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 8DThe chromatic aberration curve of the camera lens set of Example 4 is shown, which represents the deviation of the different image heights on the imaging surface after the light passes through the lens. Figures 8A to 8D It can be seen that the camera lens assembly provided in Example 4 can achieve good imaging quality.

[0120] Example 5

[0121] The following reference Figures 9 to 10D A camera lens assembly according to Embodiment 5 of the present application is described. Figure 9 A structural schematic diagram of a camera lens assembly according to Example 5 of the present application is shown.

[0122] like Figure 9 As shown, the camera lens group includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0123] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative focal power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave and its image-side surface S10 being concave. The sixth lens E6 has negative focal power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0124] In this example, the total effective focal length f of the camera lens group is 6.00 mm, the total length TTL of the camera lens group is 6.40 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 2.72 mm, half of the maximum field of view Semi-FOV of the camera lens group is 23.9°, and the F number Fno of the camera lens group is 1.31.

[0125] Table 9 shows the basic parameters of the camera lens assembly of Example 5, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 10-1 and 10-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 5, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0126]

[0127] Table 9

[0128]

[0129]

[0130] Table 10-1

[0131] Face number A18 A20 A22 A24 A26 A28 A30 S1 -2.8471E-02 8.5504E-03 -1.8267E-03 2.7089E-04 -2.6498E-05 1.5370E-06 -4.0034E-08 S2 1.4503E-01 -4.2105E-02 8.8507E-03 -1.3100E-03 1.2939E-04 -7.6524E-06 2.0489E-07 S3 8.0662E-02 -1.6413E-02 1.6211E-03 8.9989E-05 -4.7905E-05 5.5475E-06 -2.3242E-07 S4 3.2747E+00 -1.4166E+00 4.3316E-01 -9.1637E-02 1.2771E-02 -1.0554E-03 3.9195E-05 S5 3.0482E+00 -1.2336E+00 3.4400E-01 -6.3488E-02 7.1269E-03 -4.0087E-04 5.7332E-06 S6 8.3904E+00 -5.4547E+00 2.7121E+00 -9.9475E-01 2.5107E-01 -3.8382E-02 2.6356E-03 S7 -1.5458E+02 1.3057E+02 -7.9046E+01 3.3413E+01 -9.3582E+00 1.5595E+00 -1.1700E-01 S8 1.0469E+02 -9.9333E+01 6.6095E+01 -3.0135E+01 8.9481E+00 -1.5550E+00 1.1960E-01 S9 -7.9400E+00 4.5251E+00 -1.8377E+00 5.1865E-01 -9.6622E-02 1.0677E-02 -5.2974E-04 S10 1.8990E+00 -9.2713E-01 3.2866E-01 -8.1901E-02 1.3564E-02 -1.3377E-03 5.9368E-05 S11 -9.4255E-01 3.4963E-01 -9.3009E-02 1.7282E-02 -2.1283E-03 1.5602E-04 -5.1511E-06 S12 -1.0806E-01 3.5588E-02 -8.3126E-03 1.3487E-03 -1.4468E-04 9.2351E-06 -2.6571E-07

[0132] Table 10-2

[0133] Figure 10A The axial chromatic aberration curve of the camera lens set of Example 5 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the back of the lens. Figure 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. Figure 10C The distortion curve of the camera lens assembly of Example 5 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 10D The 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. 10A to 10D It can be seen that the camera lens assembly provided in Example 5 can achieve good imaging quality.

[0134] Example 6

[0135] The following reference Figures 11 to 12D A camera lens assembly according to Example 6 of the present application is described. Figure 11 A structural schematic diagram of a camera lens assembly according to Example 6 of the present application is shown.

[0136] like Figure 11 As shown, the camera lens group includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0137] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative focal power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0138] In this example, the total effective focal length f of the camera lens group is 6.00 mm, the total length TTL of the camera lens group is 6.50 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 2.72 mm, half of the maximum field of view Semi-FOV of the camera lens group is 23.9°, and the F number Fno of the camera lens group is 1.31.

[0139] Table 11 shows the basic parameters of the camera lens assembly of Example 6, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 12-1 and 12-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 6, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0140]

[0141] Table 11

[0142]

[0143]

[0144] Table 12-1

[0145] Face number A18 A20 A22 A24 A26 A28 A30 S1 -1.6922E-02 5.1865E-03 -1.1256E-03 1.6901E-04 -1.6698E-05 9.7643E-07 -2.5601E-08 S2 1.2171E-01 -3.4932E-02 7.2571E-03 -1.0614E-03 1.0359E-04 -6.0546E-06 1.6023E-07 S3 1.8567E-01 -5.8639E-02 1.3615E-02 -2.2643E-03 2.5599E-04 -1.7661E-05 5.6201E-07 S4 1.7291E+00 -7.7528E-01 2.4341E-01 -5.2550E-02 7.4428E-03 -6.2336E-04 2.3417E-05 S5 2.8022E+00 -1.2560E+00 3.9915E-01 -8.7810E-02 1.2711E-02 -1.0883E-03 4.1706E-05 S6 -5.6128E+01 4.5504E+01 -2.6175E+01 1.0453E+01 -2.7591E+00 4.3336E-01 -3.0711E-02 S7 -8.6650E+01 7.4799E+01 -4.6085E+01 1.9750E+01 -5.5896E+00 9.3864E-01 -7.0794E-02 S8 -1.6915E+02 1.5649E+02 -1.0422E+02 4.8659E+01 -1.5108E+01 2.8004E+00 -2.3437E-01 S9 -1.9256E+00 1.2469E+00 -5.5524E-01 1.6781E-01 -3.2903E-02 3.7753E-03 -1.9232E-04 S10 1.9917E+00 -9.3663E-01 3.2153E-01 -7.8061E-02 1.2668E-02 -1.2305E-03 5.4008E-05 S11 -3.0773E-01 1.2173E-01 -3.4334E-02 6.7245E-03 -8.6815E-04 6.6374E-05 -2.2748E-06 S12 -4.0292E-02 1.4624E-02 -3.6726E-03 6.3070E-04 -7.0838E-05 4.6951E-06 -1.3938E-07

[0146] Table 12-2

[0147] Figure 12A The axial chromatic aberration curve of the camera lens set of Example 6 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the lens. Figure 12B The astigmatism curve of the imaging lens set of Example 6 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 12C The distortion curve of the camera lens assembly of Example 6 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 12D The chromatic aberration curve of the camera lens set of Example 6 is shown, which represents the deviation of the different image heights on the imaging surface after the light passes through the lens. 12A to 12D It can be seen that the camera lens assembly provided in Example 6 can achieve good imaging quality.

[0148] Example 7

[0149] The following reference Figures 13 to 14D A camera lens assembly according to Example 7 of the present application is described. Figure 13 A structural schematic diagram of a camera lens assembly according to Example 7 of the present application is shown.

[0150] like Figure 13As shown, the camera lens group includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0151] The first lens E1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has positive optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative optical power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0152] In this example, the total effective focal length f of the camera lens group is 6.02 mm, the total length TTL of the camera lens group is 6.50 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 2.72 mm, half of the maximum field of view Semi-FOV of the camera lens group is 23.9°, and the F number Fno of the camera lens group is 1.45.

[0153] Table 13 shows the basic parameters of the camera lens assembly of Example 7, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 14-1 and 14-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 7, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0154]

[0155] Table 13

[0156]

[0157]

[0158] Table 14-1

[0159] Face number A18 A20 A22 A24 A26 A28 A30 S1 -8.0057E-02 2.9188E-02 -7.5863E-03 1.3715E-03 -1.6388E-04 1.1631E-05 -3.7126E-07 S2 2.2287E-01 -7.4097E-02 1.7902E-02 -3.0514E-03 3.4731E-04 -2.3658E-05 7.2860E-07 S3 4.4278E-02 8.7310E-03 -9.6373E-03 3.3374E-03 -6.3368E-04 6.5866E-05 -2.9451E-06 S4 1.5663E+00 -7.4682E-01 2.5347E-01 -5.9765E-02 9.3221E-03 -8.6701E-04 3.6503E-05 S5 3.1083E+00 -1.4192E+00 4.6759E-01 -1.0820E-01 1.6727E-02 -1.5579E-03 6.6476E-05 S6 3.1489E+00 9.2360E-01 -2.2447E+00 1.5533E+00 -5.9036E-01 1.2370E-01 -1.1222E-02 S7 -4.2730E+01 3.5912E+01 -2.1501E+01 8.9581E+00 -2.4697E+00 4.0534E-01 -3.0012E-02 S8 1.6005E+02 -1.5932E+02 1.1325E+02 -5.6038E+01 1.8325E+01 -3.5578E+00 3.1036E-01 S9 3.0631E+00 -1.8955E+00 8.4379E-01 -2.6245E-01 5.4027E-02 -6.6026E-03 3.6210E-04 S10 1.4207E+00 -6.6617E-01 2.2633E-01 -5.4128E-02 8.6346E-03 -8.2447E-04 3.5646E-05 S11 5.0228E-02 -2.1631E-02 6.4683E-03 -1.3263E-03 1.7809E-04 -1.4110E-05 4.9991E-07 S12 -1.6352E-02 4.7845E-03 -1.0144E-03 1.5174E-04 -1.5177E-05 9.0982E-07 -2.4684E-08

[0160] Table 14-2

[0161] Figure 14A The axial chromatic aberration curve of the camera lens set of Example 7 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the back of the lens. Figure 14BThe astigmatism curve of the imaging lens set of Example 7 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 14C The distortion curve of the camera lens assembly of Example 7 is shown, which represents the distortion magnitude values corresponding to different image heights. Figure 14D The chromatic aberration curve of the camera lens set of Example 7 is shown, which represents the deviation of the different image heights on the imaging surface after the light passes through the lens. 14A to 14D It can be seen that the camera lens assembly provided in Example 7 can achieve good imaging quality.

[0162] In summary, Examples 1 to 7 respectively satisfy the relationships shown in Table 15.

[0163]

[0164]

[0165] Table 15

[0166] The present application also provides an imaging device, wherein the electronic photosensitive element thereof may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device may be a standalone imaging device such as a digital camera, or an imaging module integrated into a mobile electronic device such as a mobile phone. The imaging device is equipped with the camera lens assembly described above.

[0167] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this 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 optical power, wherein the object-side surface is convex and the image-side surface is concave; a second lens having positive refractive power, with a convex object-side surface and a concave image-side surface; a third lens element having negative optical power, with a concave object-side surface and a concave image-side surface; a fourth lens element having positive optical power, with a convex object-side surface and a concave image-side surface; a fifth lens having optical power; and a sixth lens having optical power, wherein the object-side surface is convex and the image-side surface is concave; The first lens has positive refractive power, and at least one of the fifth lens and the sixth lens has negative refractive power; or The first lens has negative refractive power, the fifth lens has positive refractive power, and the sixth lens has negative refractive power; The F number Fno of the camera lens group satisfies: 1.28≤Fno≤1.45; The effective focal length f4 of the fourth lens and the curvature radius R12 of the image-side surface of the sixth lens satisfy the following conditions: 2.69≤f4 / R12≤7.50; The number of lenses having optical power in the camera lens group is six.

2. The camera lens assembly according to claim 1, wherein: The combined focal length f23 of the second lens and the third lens and the total effective focal length f of the camera lens group satisfy the following: 1.50<f23 / f<3.

20.

3. The camera lens assembly according to claim 1, wherein: The combined focal length f45 of the fourth lens and the fifth lens and the distance BFL from the image side surface of the sixth lens to the imaging surface of the camera lens group on the optical axis satisfy the following conditions: 7.58≤f45 / BFL≤10.

87.

4. The camera lens assembly according to claim 1, wherein: A curvature radius R3 of the object-side surface of the second lens and a curvature radius R4 of the image-side surface of the second lens satisfy: 7.19≤R4 / R3<9.

00.

5. The camera lens assembly according to claim 1, wherein: A curvature radius R7 of the object-side surface of the fourth lens and a curvature radius R8 of the image-side surface of the fourth lens satisfy: 7.30<(R7+R8) / (R8-R7)≤9.

82.

6. The camera lens assembly according to claim 1, wherein: A center thickness CT2 of the second lens on the optical axis and a distance T23 between the second lens and the third lens on the optical axis satisfy the following: 11.79≤CT2 / T23<17.

00.

7. The camera lens assembly according to claim 1, wherein: A center thickness CT6 of the sixth lens on the optical axis and a distance T45 between the fourth lens and the fifth lens on the optical axis satisfy the following: 3.00<T45 / CT6<5.

10.

8. The camera lens assembly according to claim 1, wherein: The distance SAG11 from the intersection of the object side surface of the first lens and the optical axis to the effective radius vertex of the object side surface of the first lens on the optical axis and the distance SAG12 from the intersection of the image side surface of the first lens and the optical axis to the effective radius vertex of the image side surface of the first lens on the optical axis satisfy: 2.41≤(SAG11+SAG12) / (SAG11-SAG12)<3.

30.

9. The camera lens assembly according to claim 1, wherein: The edge thickness ET3 of the third lens and the edge thickness ET4 of the fourth lens satisfy the following: 3.00<(ET3+ET4) / (ET3-ET4)≤4.

83.

10. The camera lens assembly according to claim 1, wherein: 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 the following: 47.72≤(DT11+DT12) / (DT11-DT12)≤60.

41.

11. The camera lens assembly according to any one of claims 1 to 10, characterized in that: The camera lens assembly further includes an aperture provided between the object side and the first lens.

Images