Camera lens assembly

Abstract

A camera lens set is disclosed, which comprises, in order from the object side to the image side along the optical axis, a first lens with optical power, a second lens with positive optical power, whose image side is convex, a third lens with negative optical power, whose object side is convex and whose image side is concave, a fourth lens with negative optical power, a fifth lens with optical power, whose image side is convex, and a sixth lens with optical power, whose object side is convex and whose image side is concave. The camera lens set satisfies: 4.00mm < tan(Semi-FOV) x f23 < 10.00mm, where Semi-FOV is half of the maximum field angle of the camera lens set, and f23 is the combined focal length of the second lens and the third lens. 2 (Semi‑FOV)×f23<10.00mm.

Description

Technical Field

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

[0002] With the rapid development of science and technology, camera lens systems suitable for portable electronic products are constantly evolving. On the one hand, users have increasingly higher requirements for the image quality of camera lens systems. On the other hand, as portable electronic products are gradually miniaturized, users have increasingly stringent requirements for the overall length and head size of camera lens systems. This reduces the design freedom of camera lens systems and increases the design difficulty.

[0003] Furthermore, as CCD and CMOS image sensors improve in performance and decrease in size, higher requirements are placed on the accompanying camera lens sets. To meet market demand for camera lens sets, lens manufacturers urgently need to design camera lens sets with high imaging quality. Summary of the Invention

[0004] On the one hand, the present application provides a camera lens group, which includes, in order from the object side to the image side along the optical axis: a first lens with optical power; a second lens with positive optical power, whose image side surface is convex; a third lens with negative optical power, whose object side surface is convex and whose image side surface is concave; a fourth lens with negative optical power; a fifth lens with optical power, whose image side surface is convex; and a sixth lens with optical power, whose object side surface is convex and whose image side surface is concave. Half of the maximum field of view (Semi-FOV) of the camera lens group and the combined focal length f23 of the second lens and the third lens can satisfy: 4.00mm<tan 2 (Semi-FOV)×f23<10.00mm.

[0005] In one embodiment, 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.

[0006] In one embodiment, the camera lens assembly may further include an aperture stop, and the aperture stop may be located between the object side and the first lens.

[0007] In one embodiment, the distance TTL from the object side surface of the first lens to the imaging plane of the camera lens assembly on the optical axis and half the diagonal length of the effective pixel area on the imaging plane of the camera lens assembly ImgH may satisfy the following: TTL / ImgH<1.36.

[0008] In one embodiment, the total effective focal length f of the camera lens assembly and the curvature radius R12 of the image-side surface of the sixth lens element may satisfy: 3.00<f / R12<6.00.

[0009] In one embodiment, a curvature radius R5 of the object-side surface of the third lens and a curvature radius R6 of the image-side surface of the third lens may satisfy: 2.00<(R5+R6) / (R5-R6)<6.00.

[0010] In one embodiment, a center thickness CT4 of the fourth lens on the optical axis and a spacing distance T45 between the fourth lens and the fifth lens on the optical axis may satisfy: 1.00<CT4 / T45<4.00.

[0011] In one embodiment, a distance TD on the optical axis from the object side surface of the first lens to the image side surface of the sixth lens and a sum ΣAT of the distances between any two adjacent lenses on the optical axis from the first lens to the sixth lens may satisfy: ΣAT / TD<0.23.

[0012] In one embodiment, the distance SAG51 from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis and the distance SAG52 from the intersection of the image side surface of the fifth lens and the optical axis to the vertex of the effective radius of the image side surface of the fifth lens on the optical axis may satisfy: -3.00<(SAG51+SAG52) / (SAG51-SAG52)<-1.00.

[0013] In one embodiment, the maximum effective radius DT62 of the image-side surface of the sixth lens and the maximum effective radius DT11 of the object-side surface of the first lens may satisfy: 4.00<DT62 / DT11<5.00.

[0014] In one embodiment, the edge thickness ET6 of the sixth lens and the edge thickness ET3 of the third lens may satisfy: 1.00<ET6 / ET3<3.00.

[0015] In one embodiment, the combined focal length f123 of the first lens, the second lens, and the third lens and the combined focal length f234 of the second lens, the third lens, and the fourth lens may satisfy: 1.00<f234 / f123<5.00.

[0016] 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; a second lens having positive optical power, whose image-side surface is convex; a third lens having negative optical power, whose object-side surface is convex and whose image-side surface is concave; a fourth lens having negative optical power; a fifth lens having optical power, whose image-side surface is convex; and a sixth lens having optical power, whose object-side surface is convex and whose image-side surface is concave. A distance TTL on the optical axis from the object-side surface of the first lens to the imaging plane of the camera lens assembly and half the diagonal length of the effective pixel area on the imaging plane of the camera lens assembly, ImgH, can satisfy the following: TTL / ImgH<1.36.

[0017] The present application uses multiple (for example, six) lenses, and by reasonably allocating the optical focal length, surface shape, center thickness of each lens, and on-axis spacing between each lens, the above-mentioned optical imaging system has at least one beneficial effect such as an ultra-small head and good imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 1 shows a schematic structural diagram of a camera lens assembly according to Example 1 of the present application;

[0020] 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;

[0021] Figure 3 A schematic structural diagram of a camera lens assembly according to embodiment 2 of the present application is shown;

[0022] 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;

[0023] Figure 5 1 shows a schematic structural diagram of a camera lens assembly according to Example 3 of the present application;

[0024] 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;

[0025] Figure 7 1 shows a schematic structural diagram of a camera lens assembly according to embodiment 4 of the present application;

[0026] Figures 8A to 8D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 4 are shown respectively;

[0027] Figure 9 1 shows a schematic structural diagram of a camera lens assembly according to embodiment 5 of the present application;

[0028] 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;

[0029] Figure 11 1 shows a schematic structural diagram of a camera lens assembly according to Example 6 of the present application;

[0030] 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;

[0031] Figure 13 1 shows a schematic structural diagram of a camera lens assembly according to Example 7 of the present application;

[0032] 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;

[0033] Figure 15 shows a schematic structural diagram of a camera lens assembly according to Example 8 of the present application; and

[0034] 16A to 16D The axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the camera lens set of Example 8 are respectively shown. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] The features, principles and other aspects of the present application are described in detail below.

[0043] 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.

[0044] In exemplary embodiments, the first lens may have positive or negative optical power; the second lens may have positive optical power, and its image-side surface may be convex; the third lens may have negative optical power, its object-side surface may be convex, and its image-side surface may be concave; the fourth lens may have negative optical power; the fifth lens may have positive or negative optical power, and its image-side surface may be convex; 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.

[0045] By properly allocating the optical power of each lens in the camera lens group, the low-order aberrations of the camera lens group can be effectively balanced, which is conducive to reducing the sensitivity of tolerances.

[0046] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: 4.00 mm < tan 2(Semi-FOV)×f23<10.00mm, where Semi-FOV is half of the maximum field of view of the camera lens group, and f23 is the combined focal length of the second lens and the third lens. More specifically, Semi-FOV and f23 can further satisfy: 4.80mm<tan 2 (Semi-FOV)×f23<9.50mm. Satisfy 4.00mm<tan 2 (Semi-FOV)×f23<10.00mm, which can achieve the imaging effect of a large field of view of the camera lens group, which is conducive to emphasizing the foreground and highlighting the contrast between near and far, and increasing the spatial depth of the captured image.

[0047] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: TTL / ImgH < 1.36, where TTL is the distance on the optical axis from the object-side surface of the first lens element to the imaging plane of the camera lens assembly, and ImgH is half the diagonal length of the effective pixel area on the imaging plane of the camera lens assembly. Meeting TTL / ImgH < 1.36 allows the camera lens assembly to be ultra-thin.

[0048] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 3.00 < f / R12 < 6.00, where f is the total effective focal length of the camera lens assembly and R12 is the radius of curvature of the image-side surface of the sixth lens element. More specifically, f and R12 may further satisfy the following relationship: 3.10 < f / R12 < 5.50. This relationship effectively controls the contribution of the sixth lens element to the fifth-order spherical aberration of the camera lens assembly, thereby compensating for the third-order spherical aberration generated by the system, resulting in excellent imaging quality along the optical axis of the camera lens assembly.

[0049] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following conditions: 2.00 < (R5 + R6) / (R5 - R6) < 6.00, where R5 is the radius of curvature of the object-side surface of the third lens element, and R6 is the radius of curvature of the image-side surface of the third lens element. More specifically, R5 and R6 may further satisfy the following conditions: 2.10 < (R5 + R6) / (R5 - R6) < 5.40. Satisfying 2.00 < (R5 + R6) / (R5 - R6) < 6.00 can reasonably control the deflection angle of light at the edge of the camera lens assembly, effectively reducing the sensitivity of the camera lens assembly.

[0050] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 1.00 < CT4 / T45 < 4.00, where CT4 is the center thickness of the fourth lens element on the optical axis, and T45 is the distance between the fourth and fifth lenses on the optical axis. This relationship effectively reduces the risk of ghost images between the fourth and fifth lenses and helps reduce the overall length of the camera lens assembly.

[0051] In an exemplary embodiment, the camera lens assembly according to the present application can satisfy the following relationship: ∑AT / TD < 0.23, where TD is the distance on the optical axis from the object side of the first lens to the image side of the sixth lens, and ∑AT is the sum of the distances on the optical axis between any two adjacent lenses from the first to the sixth lens. Meeting ∑AT / TD < 0.23 ensures the processing and assembly characteristics of the camera lens assembly, avoiding issues such as interference between front and rear lenses during assembly caused by insufficient clearance. It also helps mitigate light deflection, adjust the field curvature of the camera lens assembly, and reduce sensitivity, thereby achieving better image quality.

[0052] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy: -3.00<(SAG51+SAG52) / (SAG51-SAG52)<-1.00, wherein SAG51 is the distance from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis, and SAG52 is the distance from the intersection of the image side surface of the fifth lens and the optical axis to the vertex of the effective radius of the image side surface of the fifth lens on the optical axis. More specifically, SAG51 and SAG52 may further satisfy: -2.80<(SAG51+SAG52) / (SAG51-SAG52)<-1.20. Satisfying -3.00<(SAG51+SAG52) / (SAG51-SAG52)<-1.00 can effectively control the shape of the fifth lens, ensure the moldability and processability of the fifth lens, and help avoid difficulties in molding stress, coating, etc. caused by the excessive thickness of the fourth lens.

[0053] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following conditions: 4.00 < DT62 / DT11 < 5.00, where DT62 is the maximum effective radius of the image side surface of the sixth lens, and DT11 is the maximum effective radius of the object side surface of the first lens. More specifically, DT62 and DT11 may further satisfy the following conditions: 4.30 < DT62 / DT11 < 4.80. Meeting the conditions of 4.00 < DT62 / DT11 < 5.00 is beneficial for reducing the front end size of the camera lens assembly, making the entire camera lens assembly thinner and lighter, achieving the characteristic of a small head; and is beneficial for reasonably limiting the range of incident light, eliminating light with poor edge quality, reducing off-axis aberrations, and effectively improving the resolution of the camera lens assembly.

[0054] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 1.00 < ET6 / ET3 < 3.00, where ET6 is the edge thickness of the sixth lens element and ET3 is the edge thickness of the third lens element. More specifically, ET6 and ET3 may further satisfy the following relationship: 1.40 < ET6 / ET3 < 2.60. This relationship ensures that the field curvature contribution of the image-side surface of the third lens element is within a reasonable range, balancing the field curvature generated by the subsequent lenses.

[0055] In an exemplary embodiment, the camera lens assembly according to the present application may satisfy the following relationship: 1.00 < f234 / f123 < 5.00, where f123 is the combined focal length of the first, second, and third lenses, and f234 is the combined focal length of the second, third, and fourth lenses. More specifically, f234 and f123 may further satisfy the following relationship: 1.30 < f234 / f123 < 4.90. This relationship of 1.00 < f234 / f123 < 5.00 can control the contribution of aberrations across the entire camera lens assembly, facilitating balancing the aberrations generated by the front and rear lenses and maintaining a reasonable aberration level for the camera lens assembly.

[0056] In an exemplary embodiment, the camera lens group according to the present application further includes an aperture arranged between the object side and the first lens. Placing the aperture in front can achieve the characteristic of a small head of the camera lens group. 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. The present application proposes a camera lens group with characteristics such as an ultra-small head, ultra-thinness, a large image surface, and high imaging quality. The camera lens group according to the above-mentioned embodiment of the present application can adopt multiple lenses, such as the six lenses described above. By reasonably allocating the optical power, surface shape, center thickness of each lens, and axial spacing between each lens, etc., the incident light can be effectively converged, the total optical length of the imaging lens can be reduced, and the machinability of the imaging lens can be improved, making the camera lens group more conducive to production and processing.

[0057] 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.

[0058] 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.

[0059] Specific embodiments of the camera lens assembly applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0060] Example 1

[0061] 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.

[0062] 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.

[0063] The first lens E1 has negative refractive power, the object side surface S1 is convex, and the image side surface S2 is concave. The second lens E2 has positive refractive power, the object side surface S3 is convex, and the image side surface S4 is convex. The third lens E3 has negative refractive power, the object side surface S5 is convex, and the image side surface S6 is concave. The fourth lens E4 has negative refractive power, the object side surface S7 is concave, and the image side surface S8 is concave. The fifth lens E5 has positive refractive power, the object side surface S9 is concave, and the image side surface S10 is convex. The sixth lens E6 has negative refractive power, the object side surface S11 is convex, and the image side surface S12 is concave. The filter E7 has an object side surface S13 and an image side surface S14. Light from an object sequentially passes through the surfaces S1 to S14 and is finally imaged on the imaging surface S15.

[0064] Table 1 shows a basic parameter table of the camera lens set of Example 1, wherein the units of the radius of curvature, thickness / distance, and focal length are all millimeters (mm).

[0065]

[0066] Table 1

[0067] In this example, the total effective focal length f of the camera lens set is 2.72 mm, the total length TTL (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 set) of the camera lens set is 4.35 mm, the half of the diagonal length of the effective pixel area on the imaging surface S15 of the camera lens set is ImgH 3.32 mm, the half of the maximum field of view angle Semi-FOV of the camera lens set is 50.9°, and the aperture value Fno of the camera lens set is 2.42.

[0068] In Example 1, the object side surface and the image side surface of any one of the first lens E1 to the sixth lens E6 are aspherical surfaces, and the surface type x of each aspherical surface can be defined by, but not limited to, the following aspherical surface formula:

[0069]

[0070] wherein x is the sag of the aspherical surface at a height h along the optical axis from the vertex of the aspherical surface, c is the paraxial curvature of the aspherical surface, c = 1 / R (i.e., the paraxial curvature c is the inverse of the radius of curvature R in Table 1 above), k is the conic constant, and Ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below gives the high-order term coefficients A4, A6, A8, A10, and A12 that can be used for each aspherical surface S1-S12 in Example 1. 10 12 14 16 18 20 . ​​​​​

[0071] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -1.8923E-01 3.1067E-01 -4.6074E+00 4.9599E+01 -3.4852E+02 1.5662E+03 -4.2931E+03 6.5091E+03 -4.1783E+03 S2 -3.1598E-01 4.1345E-01 -2.6978E+00 2.2664E+01 -7.7938E+01 5.6142E+01 5.4173E+02 -1.7322E+03 1.5912E+03 S3 -3.0030E-01 1.0335E+00 -1.7425E+01 1.6658E+02 -9.4388E+02 3.3300E+03 -7.0573E+03 8.1800E+03 -3.9775E+03 S4 4.3642E-02 -5.1742E-01 4.3886E+00 -3.3632E+01 1.5189E+02 -4.1294E+02 6.7078E+02 -6.0231E+02 2.2951E+02 S5 -3.1771E-01 6.7570E-01 -2.7851E+00 8.2470E+00 -1.5576E+01 1.9164E+01 -1.4966E+01 6.6970E+00 -1.2899E+00 S6 -4.4976E-01 8.8341E-01 -2.3658E+00 4.1115E+00 -1.9523E+00 -9.8140E+00 2.8351E+01 -3.8418E+01 2.9743E+01 S7 -5.5382E-01 1.8025E+00 -3.2973E+00 -2.8597E+00 3.1356E+01 -7.8188E+01 1.0434E+02 -8.0896E+01 3.4423E+01 S8 -9.6566E-01 2.7588E+00 -4.9938E+00 5.7629E+00 -6.6775E+00 1.1270E+01 -1.6308E+01 1.4966E+01 -8.1905E+00 S9 -4.4094E-01 -2.9928E-01 7.1093E+00 -2.4864E+01 5.1025E+01 -7.8752E+01 9.9363E+01 -9.7890E+01 6.8807E+01 S10 -1.7070E-01 1.2043E+00 -4.2084E+00 1.1630E+01 -2.6027E+01 4.7557E+01 -6.9297E+01 7.7028E+01 -6.2693E+01 S11 -7.1414E-01 1.5976E+00 -2.7675E+00 3.4497E+00 -3.2118E+00 2.2926E+00 -1.2667E+00 5.4095E-01 -1.7671E-01 S12 -1.1156E+00 1.9123E+00 -2.7038E+00 2.8425E+00 -2.1865E+00 1.2333E+00 -5.1247E-01 1.5708E-01 -3.5343E-02

[0072] Table 2

[0073] Figure 2A The axial chromatic aberration curve of the camera lens set of Example 1 is shown, which indicates the deviation of the 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.

[0074] Example 2

[0075] 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.

[0076] like Figure 3 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.

[0077] 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 convex. The third lens E3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative optical power, with its object-side surface S7 being concave 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.

[0078] In this example, the total effective focal length f of the camera lens group is 2.71 mm, the total length TTL of the camera lens group is 4.40 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 3.32 mm, half of the maximum field of view Semi-FOV of the camera lens group is 51.2°, and the aperture value Fno of the camera lens group is 2.46.

[0079] 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). Table 4 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 2, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0080]

[0081] Table 3

[0082] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -1.8303E-01 4.6206E-01 -1.2545E+01 1.9192E+02 -1.6926E+03 8.9557E+03 -2.8027E+04 4.7811E+04 -3.4258E+04 S2 -3.3053E-01 -5.5750E-02 9.4384E+00 -1.1894E+02 8.9151E+02 -3.9672E+03 1.0465E+04 -1.5091E+04 9.1548E+03 S3 -3.1486E-01 4.8422E-01 -6.9088E+00 6.9273E+01 -4.0485E+02 1.5053E+03 -3.4153E+03 4.3084E+03 -2.3181E+03 S4 2.8107E-02 -7.4412E-01 6.8700E+00 -4.4819E+01 1.7541E+02 -4.2262E+02 6.1705E+02 -5.0316E+02 1.7583E+02 S5 -3.0828E-01 4.5759E-01 -9.7099E-01 1.2356E-01 5.8160E+00 -1.5834E+01 2.0015E+01 -1.2911E+01 3.4402E+00 S6 -4.1942E-01 6.5164E-01 -1.4245E+00 2.1182E+00 -1.7719E+00 4.2255E-01 4.9584E-01 -4.0249E-01 8.3150E-02 S7 -6.2650E-01 2.8156E+00 -9.7192E+00 1.9986E+01 -2.1403E+01 4.2793E+00 1.7396E+01 -2.1450E+01 1.0650E+01 S8 -1.1801E+00 4.3807E+00 -1.0995E+01 1.7810E+01 -1.9096E+01 1.3429E+01 -5.9027E+00 1.4593E+00 -1.5322E-01 S9 -7.1104E-01 2.8975E-01 8.5461E+00 -3.5838E+01 7.7245E+01 -1.0626E+02 9.8615E+01 -6.1627E+01 2.4824E+01 S10 -2.2715E-01 1.3424E+00 -4.1213E+00 9.5193E+00 -1.6274E+01 2.0378E+01 -1.8792E+01 1.2749E+01 -6.1705E+00 S11 -7.3102E-01 1.7940E+00 -3.0668E+00 3.5331E+00 -2.8507E+00 1.6418E+00 -6.7650E-01 1.9712E-01 -3.9505E-02 S12 -1.0851E+00 1.7675E+00 -2.2750E+00 2.1331E+00 -1.4533E+00 7.2521E-01 -2.6683E-01 7.2516E-02 -1.4483E-02

[0083] Table 4

[0084] 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 4B The 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.

[0085] Example 3

[0086] 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.

[0087] 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.

[0088] 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 convex. The third lens E3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative 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.

[0089] In this example, the total effective focal length f of the camera lens group is 2.72 mm, the total length TTL of the camera lens group is 4.39 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 3.35 mm, half of the maximum field of view angle Semi-FOV of the camera lens group is 51.3°, and the aperture value Fno of the camera lens group is 2.42.

[0090] 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). Table 6 shows the high-order coefficients of each aspherical mirror surface 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.

[0091]

[0092]

[0093] Table 5

[0094] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -1.9368E-01 9.1178E-01 -1.5991E+01 1.7610E+02 -1.1932E+03 5.0136E+03 -1.2690E+04 1.7701E+04 -1.0442E+04 S2 -2.9585E-01 -2.6060E-01 1.2135E+01 -1.4055E+02 9.8752E+02 -4.2361E+03 1.0939E+04 -1.5572E+04 9.3568E+03 S3 -2.7333E-01 -2.8938E-01 5.5013E+00 -4.7069E+01 2.6612E+02 -9.4518E+02 2.0940E+03 -2.6356E+03 1.4254E+03 S4 9.1626E-02 -1.4687E+00 1.1927E+01 -6.6307E+01 2.3687E+02 -5.4135E+02 7.6677E+02 -6.1337E+02 2.1149E+02 S5 -2.8270E-01 1.3997E-01 5.4835E-01 -3.5238E+00 9.7838E+00 -1.5124E+01 1.3627E+01 -6.8346E+00 1.4996E+00 S6 -4.4604E-01 9.2639E-01 -3.2802E+00 9.9594E+00 -2.2440E+01 3.5218E+01 -3.6947E+01 2.4534E+01 -9.2854E+00 S7 -6.2774E-01 2.9000E+00 -1.1264E+01 3.0527E+01 -5.6329E+01 7.1097E+01 -6.0506E+01 3.3117E+01 -1.0460E+01 S8 -1.0135E+00 2.7798E+00 -4.4643E+00 2.7667E+00 8.6714E-01 1.2047E+00 -9.6284E+00 1.4057E+01 -9.7387E+00 S9 -3.3028E-01 -1.5427E+00 1.3187E+01 -3.8629E+01 5.6927E+01 -3.4726E+01 -2.0616E+01 5.8237E+01 -5.1386E+01 S10 -1.4048E-01 4.6250E-01 -6.3210E-01 1.5852E+00 -4.1629E+00 6.2712E+00 -5.3386E+00 2.5524E+00 -5.5147E-01 S11 -6.5810E-01 8.9674E-01 3.6224E-01 -4.2197E+00 8.5981E+00 -1.0028E+01 7.8031E+00 -4.2640E+00 1.6633E+00 S12 -1.0078E+00 1.6378E+00 -2.1488E+00 2.0501E+00 -1.4200E+00 7.2286E-01 -2.7308E-01 7.6848E-02 -1.6050E-02

[0095] Table 6

[0096] 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.

[0097] Example 4

[0098] 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.

[0099] 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.

[0100] The first lens E1 has negative optical power, with its object-side surface S1 being concave 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 convex. The third lens E3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative 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.

[0101] In this example, the total effective focal length f of the camera lens group is 2.73 mm, the total length TTL of the camera lens group is 4.37 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 3.35 mm, half of the maximum field of view Semi-FOV of the camera lens group is 51.3°, and the aperture value Fno of the camera lens group is 2.42.

[0102] 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). Table 8 shows the high-order coefficients of each aspherical mirror surface that can be used in Example 4, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0103]

[0104] Table 7

[0105] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -1.2750E-01 -1.5755E-01 4.8960E+00 -5.6946E+01 4.0039E+02 -1.7239E+03 4.4480E+03 -6.3023E+03 3.7611E+03 S2 -3.2930E-01 6.1988E-01 2.9096E+00 -4.3813E+01 3.0543E+02 -1.2293E+03 2.9295E+03 -3.8446E+03 2.1479E+03 S3 -3.7534E-01 1.0620E+00 -7.9935E+00 6.5969E+01 -3.6573E+02 1.2966E+03 -2.8156E+03 3.4024E+03 -1.7483E+03 S4 -5.7469E-02 -5.1015E-01 3.0273E+00 -1.2480E+01 3.2667E+01 -5.4432E+01 5.4177E+01 -2.8589E+01 5.4945E+00 S5 -1.7684E-01 1.0787E-02 4.7105E-01 -1.4987E+00 3.0221E+00 -4.2057E+00 3.8138E+00 -2.0009E+00 4.5454E-01 S6 -2.2561E-01 2.3677E-01 -4.5057E-01 8.5300E-01 -1.1812E+00 1.0221E+00 -5.0258E-01 1.2039E-01 -1.0106E-02 S7 -4.7016E-01 1.5214E+00 -5.5798E+00 1.3919E+01 -2.2408E+01 2.3034E+01 -1.4472E+01 5.0584E+00 -7.5658E-01 S8 -5.4613E-01 1.1126E+00 -7.5349E-01 -5.9810E+00 2.3904E+01 -4.4901E+01 4.7956E+01 -2.4294E+01 -6.1556E+00 S9 -1.9126E-01 1.6724E-01 -9.1460E-01 1.0982E+01 -4.7463E+01 1.0951E+02 -1.5543E+02 1.4279E+02 -8.5163E+01 S10 1.3743E+00 -5.9928E+00 2.2830E+01 -6.8654E+01 1.5728E+02 -2.7092E+02 3.4966E+02 -3.3786E+02 2.4325E+02 S11 -3.3789E-01 4.2711E-01 -2.5812E-01 -3.8631E-01 1.0190E+00 -1.1357E+00 8.0404E-01 -3.9714E-01 1.4071E-01 S12 -1.6263E-01 2.8489E-01 -4.1626E-01 4.1244E-01 -2.8542E-01 1.4213E-01 -5.1736E-02 1.3836E-02 -2.7085E-03

[0106] Table 8

[0107] Figure 8AThe 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 8D The 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.

[0108] Example 5

[0109] 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.

[0110] 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.

[0111] The first lens E1 has positive focal power, with its object-side surface S1 being concave and its image-side surface S2 being convex. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative focal power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative 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.

[0112] In this example, the total effective focal length f of the camera lens group is 2.72 mm, the total length TTL of the camera lens group is 4.39 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 3.35 mm, half of the maximum field of view angle Semi-FOV of the camera lens group is 51.3°, and the aperture value Fno of the camera lens group is 2.41.

[0113] 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). Table 10 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 5, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0114]

[0115]

[0116] Table 9

[0117] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 -1.0171E-01 -3.0669E-01 7.3998E+00 -8.1665E+01 5.5934E+02 -2.3927E+03 6.2266E+03 -9.0063E+03 5.5442E+03 S2 -3.3583E-01 1.0659E+00 -1.6895E+00 -6.6699E+00 9.7743E+01 -4.7673E+02 1.2524E+03 -1.7622E+03 1.0533E+03 S3 -4.1439E-01 1.3265E+00 -9.6256E+00 7.4644E+01 -4.0712E+02 1.4331E+03 -3.0920E+03 3.7059E+03 -1.8805E+03 S4 -9.3142E-02 -1.0268E+00 8.0860E+00 -3.9023E+01 1.1843E+02 -2.2527E+02 2.4721E+02 -1.1749E+02 -2.2883E+01 S5 -1.4208E-01 -4.1944E-01 2.9217E+00 -1.0188E+01 2.3165E+01 -3.4592E+01 3.2472E+01 -1.7308E+01 3.9895E+00 S6 -1.6157E-01 5.9533E-02 -2.7317E-03 7.7584E-02 -2.8030E-01 3.0431E-01 -8.9284E-02 -4.5301E-02 2.3216E-02 S7 -4.6051E-01 1.6373E+00 -8.5133E+00 3.4035E+01 -9.5300E+01 1.8647E+02 -2.5526E+02 2.4233E+02 -1.5505E+02 S8 -4.5853E-01 4.6053E-01 4.1687E+00 -3.9332E+01 1.7637E+02 -5.1016E+02 1.0318E+03 -1.5054E+03 1.5978E+03 S9 -3.4195E-02 -6.9730E-01 5.8893E+00 -2.6903E+01 8.5171E+01 -2.0737E+02 3.9418E+02 -5.6884E+02 6.0314E+02 S10 1.3441E+00 -5.8411E+00 2.3513E+01 -7.6070E+01 1.8728E+02 -3.4664E+02 4.8093E+02 -4.9852E+02 3.8295E+02 S11 -3.6325E-01 6.6386E-01 -1.0940E+00 9.6562E-01 -2.2008E-01 -4.5432E-01 5.9971E-01 -3.8914E-01 1.6117E-01 S12 -1.3661E-01 2.8248E-01 -5.4784E-01 6.6810E-01 -5.3844E-01 3.0161E-01 -1.2093E-01 3.5202E-02 -7.4534E-03

[0118] Table 10

[0119] 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 the 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.

[0120] Example 6

[0121] 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.

[0122] 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.

[0123] The first lens E1 has positive focal power, with its object-side surface S1 being concave and its image-side surface S2 being convex. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being convex. The third lens E3 has negative focal power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative focal power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. 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 the 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 2.72 mm, the total length TTL of the camera lens group is 4.37 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 3.32 mm, half of the maximum field of view Semi-FOV of the camera lens group is 51.1°, and the aperture value Fno of the camera lens group is 2.42.

[0125] 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). Table 12 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 6, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0126]

[0127] Table 11

[0128]

[0129]

[0130] Table 12

[0131] 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.

[0132] Example 7

[0133] The following refers to Figures 13 to 14D A camera lens set according to Embodiment 7 of the present application is described. Figure 13 A structural schematic diagram of the camera lens set according to Embodiment 7 of the present application is shown.

[0134] As Figure 13 shown, the camera lens set 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.

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

[0136] In the present example, the total effective focal length f of the camera lens set is 2.72 mm, the total track length TTL of the camera lens set is 4.46 mm, the half of the diagonal length of the effective pixel area on the imaging surface S15 of the camera lens set is ImgH = 3.32 mm, the half of the maximum field angle of the camera lens set is Semi-FOV = 51.1°, and the F number Fno of the camera lens set is 2.41.

[0137] Table 13 shows a basic parameter table of the camera lens set of Embodiment 7, wherein the units of the curvature radius, the thickness / distance, and the focal length are all millimeters (mm). Table 14 shows the high-order term coefficients of the aspherical surfaces that can be used in the camera lens set of Embodiment 7, wherein 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 A18 A20 S1 -1.6134E-01 8.4502E-01 -1.5314E+01 1.5691E+02 -9.8648E+02 3.8415E+03 -8.9765E+03 1.1450E+04 -6.0722E+03 S2 -1.2494E-01 -2.6966E-01 3.7621E+00 -3.3813E+01 2.0172E+02 -7.4849E+02 1.7232E+03 -2.2241E+03 1.2152E+03 S3 -9.5179E-02 -1.7656E-01 3.1764E-01 -3.1809E+00 3.7337E+01 -1.9855E+02 5.9098E+02 -8.9534E+02 5.3296E+02 S4 9.8435E-02 -2.1974E+00 1.7930E+01 -8.9313E+01 2.8170E+02 -5.6619E+02 7.0299E+02 -4.9113E+02 1.4753E+02 S5 -1.6625E-01 -8.8799E-01 5.3955E+00 -1.9056E+01 4.2072E+01 -5.8666E+01 5.0272E+01 -2.4175E+01 4.9950E+00 S6 -2.2922E-01 -3.2037E-01 1.5856E+00 -4.1679E+00 6.8651E+00 -7.1728E+00 4.5934E+00 -1.6437E+00 2.5018E-01 S7 -3.4663E-02 -8.7286E-02 -9.5073E-02 1.8235E+00 -4.3178E+00 5.1408E+00 -3.4696E+00 1.2636E+00 -1.9357E-01 S8 -3.3961E-01 3.3671E-01 2.6472E-01 -1.5500E+00 2.3944E+00 -1.9466E+00 8.8769E-01 -2.0339E-01 1.5947E-02 S9 -3.2846E-01 2.5719E-01 1.3181E+00 -4.2019E+00 5.8355E+00 -4.6107E+00 2.1584E+00 -5.6257E-01 6.3227E-02 S10 5.8190E-01 -1.6353E+00 4.0260E+00 -7.2531E+00 9.4549E+00 -8.7246E+00 5.4915E+00 -2.1452E+00 3.5493E-01 S11 -2.1870E-01 2.4132E-01 -2.8392E-01 2.1006E-01 -9.6928E-02 2.7931E-02 -4.8617E-03 4.6647E-04 -1.8936E-05 S12 -6.4331E-02 2.2159E-02 -1.1056E-02 4.9467E-03 -1.4807E-03 2.6900E-04 -2.8120E-05 1.5028E-06 -2.9037E-08

[0142] Table 14

[0143] 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 14B The 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.

[0144] Example 8

[0145] The following reference Figures 15 to 16D A camera lens assembly according to Example 8 of the present application is described. Figure 15 A structural schematic diagram of a camera lens assembly according to Example 8 of the present application is shown.

[0146] like Figure 15 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.

[0147] The first lens E1 has positive 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 convex. The third lens E3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative optical power, with its object-side surface S7 being concave and its image-side surface S8 being concave. The fifth lens E5 has positive optical power, with its object-side surface S9 being convex 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 an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0148] In this example, the total effective focal length f of the camera lens group is 2.70 mm, the total length TTL of the camera lens group is 4.41 mm, half of the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the camera lens group is 3.32 mm, half of the maximum field of view Semi-FOV of the camera lens group is 51.5°, and the aperture value Fno of the camera lens group is 2.25.

[0149] Table 15 shows the basic parameters of the camera lens assembly of Example 8, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Table 16 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 8, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0150]

[0151] Table 15

[0152]

[0153]

[0154] Table 16

[0155] Figure 16A The axial chromatic aberration curve of the camera lens set of Example 8 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the back of the lens. Figure 16B The astigmatism curve of the imaging lens set of Example 8 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 16C The distortion curve of the camera lens assembly of Example 8 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Figure 16D The chromatic aberration curve of the camera lens set of Example 8 is shown, which represents the deviation of the different image heights on the imaging surface after the light passes through the lens. 16A to 16D It can be seen that the camera lens assembly provided in Example 8 can achieve good imaging quality.

[0156] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 17.

[0157] Conditional formula / Example 1 2 3 4 5 6 7 8 TTL / ImgH 1.31 1.32 1.31 1.30 1.31 1.32 1.34 1.33 <![CDATA[tan 2 (Semi-FOV)×f23(mm)]]> 4.86 5.08 5.57 6.05 7.22 9.40 5.96 5.52 f / R12 3.89 3.81 3.73 5.33 5.45 3.47 4.02 3.12 (R5+R6) / (R5-R6) 3.39 3.69 3.16 3.09 2.37 2.19 5.32 5.31 CT4 / T45 1.75 1.47 2.01 1.02 1.03 1.99 2.99 3.96 ∑AT / TD 0.21 0.21 0.20 0.22 0.21 0.19 0.21 0.227 (SAG51+SAG52) / (SAG51-SAG52) -1.96 -2.00 -1.84 -1.73 -1.80 -2.69 -1.37 -1.22 DT62 / DT11 4.40 4.55 4.51 4.55 4.53 4.53 4.58 4.75 ET6 / ET3 1.79 1.54 1.68 1.62 1.54 1.59 1.42 2.58 f234 / f123 1.65 2.00 2.29 1.40 1.55 2.13 4.87 2.84

[0158] Table 17

[0159] 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.

[0160] 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 herein 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 having 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; a second lens having positive refractive power and a convex image-side surface; The third lens has a negative optical power, with a convex object-side surface and a concave image-side surface; a fourth lens element having negative optical power; a fifth lens element having optical power and a convex image-side surface; 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 negative optical power, the fifth lens has positive optical power, and the sixth lens has negative optical power; or the first lens has positive optical power, and the fifth lens and the sixth lens have optical powers with opposite positive and negative properties; The number of lenses with optical power in the camera lens group is six; The combined focal length f23 of half the maximum field of view angle Semi-FOV of the camera lens assembly and the second lens and the third lens satisfies: 4.86 mm ≤ tan 2 (Semi-FOV)×f23≤9.40 mm; and The combined focal length f123 of the first lens, the second lens, and the third lens and the combined focal length f234 of the second lens, the third lens, and the fourth lens satisfy the following: 1.40≤f234 / f123≤4.87; The distance TTL from the object side of the first lens to the imaging plane of the camera lens assembly on the optical axis and half the diagonal length of the effective pixel area on the imaging plane of the camera lens assembly ImgH satisfy the following: 1.30≤TTL / ImgH<1.36; A center thickness CT4 of the fourth lens on the optical axis and a distance T45 between the fourth lens and the fifth lens on the optical axis satisfy the following: 1.00<CT4 / T45<4.

00.

2. The camera lens assembly according to claim 1, wherein: The total effective focal length f of the camera lens group and the curvature radius R12 of the image side surface of the sixth lens satisfy: 3.12≤f / R12≤5.

45.

3. The camera lens assembly according to claim 1, wherein: A curvature radius R5 of the object-side surface of the third lens and a curvature radius R6 of the image-side surface of the third lens satisfy: 2.19≤(R5+R6) / (R5-R6)≤5.

32.

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

23.

5. The camera lens assembly according to claim 1, wherein: The distance SAG51 from the intersection of the object side surface of the fifth lens and the optical axis to the effective radius vertex of the object side surface of the fifth lens on the optical axis and the distance SAG52 from the intersection of the image side surface of the fifth lens and the optical axis to the effective radius vertex of the image side surface of the fifth lens on the optical axis satisfy: -2.69≤(SAG51+SAG52) / (SAG51-SAG52)≤-1.

22.

6. The camera lens assembly according to claim 1, wherein: The maximum effective radius DT62 of the image-side surface of the sixth lens and the maximum effective radius DT11 of the object-side surface of the first lens satisfy the following: 4.40≤DT62 / DT11≤4.

75.

7. The camera lens assembly according to claim 1, wherein: An edge thickness ET6 of the sixth lens and an edge thickness ET3 of the third lens satisfy the following: 1.42≤ET6 / ET3≤2.

58.

8. The camera lens assembly according to claim 1, wherein: The camera lens assembly further includes an aperture, which is located between the object side and the first lens.

Images