Camera lens set

Abstract

The present application discloses a camera lens group, which includes, in order from the object side to the image side along the optical axis: an aperture; a first lens with positive focal power; a second lens with negative focal power; a third lens with positive focal power; a fourth lens with focal power; a fifth lens with focal power; a sixth lens with positive focal power; and a seventh lens with negative focal power; the aperture number Fno of the camera lens group satisfies: Fno≤1.53; the distance TTL from the object side surface of the first lens to the imaging plane of the camera lens group on the optical axis and half of the diagonal length of the effective pixel area on the imaging plane of the camera lens group ImgH satisfy: TTL / ImgH≤1.31; and the effective focal length f3 of the third lens, the total effective focal length f of the camera lens group and half of the diagonal length of the effective pixel area on the imaging plane ImgH satisfy: 11.50mm<f3 / f×ImgH<14.00mm.

Description

Technical Field

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

[0002] Mobile phones and other portable devices are usually equipped with camera modules to enable the mobile phones to have camera functions. In recent years, with the upgrading of consumer electronic products and the development of image software functions and video software functions on consumer electronic products, the market requirements for camera modules have become increasingly higher. The camera module is usually equipped with a charge-coupled device (CCD) type image sensor or a complementary metal oxide semiconductor (CMOS) type image sensor, and is also equipped with a camera lens group. The camera lens group can collect the light from the object side, and the imaging light travels along the optical path of the camera lens group and shines on the image sensor, and then the image sensor converts the light signal into an electrical signal to form image data.

[0003] The rapid development of mobile phone camera modules, particularly the widespread adoption of large-size, high-pixel CMOS chips, has led mobile phone manufacturers to place more stringent demands on the imaging quality of camera lens modules. Furthermore, as CCD and CMOS components improve in performance and decrease in size, higher demands are placed on the corresponding imaging systems for both high image quality and miniaturization.

[0004] In order to meet the needs of miniaturization and imaging requirements, a camera lens group that can take into account ultra-thinness, large aperture, and large image surface is needed. Summary of the Invention

[0005] The present application provides a camera lens assembly that is applicable to portable electronic products and can at least solve or partially solve at least one of the above-mentioned shortcomings in the prior art.

[0006] The present application provides a camera lens group, which includes, in order from the object side to the image side along the optical axis: an aperture; a first lens with positive focal power; a second lens with negative focal power; a third lens with positive focal power; a fourth lens with focal power; a fifth lens with focal power; a sixth lens with positive focal power; and a seventh lens with negative focal power; the aperture number Fno of the camera lens group satisfies: Fno≤1.53; the distance TTL from the object side surface of the first lens to the imaging plane of the camera lens group on the optical axis and half of the diagonal length of the effective pixel area on the imaging plane of the camera lens group ImgH satisfy: TTL / ImgH≤1.31; and the effective focal length f3 of the third lens, the total effective focal length f of the camera lens group and half of the diagonal length of the effective pixel area on the imaging plane ImgH satisfy: 11.50mm<f3 / f×ImgH<14.00mm.

[0007] In one embodiment, at least one aspherical mirror surface is provided from the object side surface of the first lens to the image side surface of the seventh lens.

[0008] In one embodiment, the combined focal length f34 of the third lens and the fourth lens and the optical back focus BFL of the camera lens assembly may satisfy the following equation: 19.00<f34 / BFL<33.00.

[0009] In one embodiment, the curvature radius R2 of the image-side surface of the first lens and the effective focal length f1 of the first lens may satisfy: 2.00<R2 / f1<3.00.

[0010] 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<(R6+R5) / (R6-R5)<3.50.

[0011] In one embodiment, the sum of the on-axis distance TD from the object-side surface of the first lens to the image-side surface of the seventh lens and the distance ΣAT between any two adjacent lenses on the optical axis from the first lens to the seventh lens may satisfy: ΣAT / TD≤0.42.

[0012] In one embodiment, a center thickness CT6 of the sixth lens on the optical axis and a spacing distance T67 between the sixth lens and the seventh lens on the optical axis may satisfy: 2.00<T67 / CT6<3.00.

[0013] In one embodiment, the on-axis distance SAG51 between 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 and the on-axis distance SAG52 between 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 may satisfy: 4.50<(SAG51+SAG52) / (SAG52-SAG51)<6.50.

[0014] In one embodiment, the on-axis distance SAG31 between the intersection of the object side surface of the third lens and the optical axis to the effective radius vertex of the object side surface of the third lens and the on-axis distance SAG32 between the intersection of the image side surface of the third lens and the optical axis to the effective radius vertex of the image side surface of the third lens may satisfy: 2.00<(SAG31+SAG32) / (SAG31-SAG32)<2.50.

[0015] In one embodiment, the maximum effective radius DT11 of the object-side surface of the first lens and the maximum effective radius DT62 of the image-side surface of the sixth lens may satisfy: 5.00<(DT11+DT62) / (DT62-DT11)<7.50.

[0016] In one embodiment, a maximum effective radius DT71 of the object-side surface of the seventh lens and a maximum effective radius DT72 of the image-side surface of the seventh lens may satisfy the following: 19.00<(DT71+DT72) / (DT72-DT71)<65.00.

[0017] In one embodiment, an edge thickness ET6 of the sixth lens and an edge thickness ET7 of the seventh lens may satisfy: 0.50<ET6 / ET7<2.00.

[0018] In a second aspect, the present application provides a camera lens group, which includes, in order from the object side to the image side along the optical axis: an aperture; a first lens with positive focal power; a second lens with negative focal power; a third lens with positive focal power; a fourth lens with focal power; a fifth lens with focal power; a sixth lens with positive focal power; and a seventh lens with negative focal power; the aperture number Fno of the camera lens group can satisfy: Fno≤1.53; the distance TTL from the object side surface of the first lens to the imaging surface of the camera lens group on the optical axis and half the diagonal length of the effective pixel area on the imaging surface of the camera lens group ImgH can satisfy: TTL / ImgH≤1.31; and the curvature radius R5 of the object side surface of the third lens and the curvature radius R6 of the image side surface of the third lens can satisfy: 2.00<(R6+R5) / (R6-R5)<3.50.

[0019] This application uses seven lenses. By reasonably allocating the optical focal length, surface shape, center thickness of each lens, and on-axis spacing between each lens, the above-mentioned camera lens group has at least one beneficial effect of ultra-thinness, large aperture, and large image surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, purposes and advantages of the present application will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0021] Figure 1 1 shows a schematic structural diagram of a camera lens assembly according to Example 1 of the present application; 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; 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; 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;

[0024] Figure 7 1 shows a schematic structural diagram of a camera lens assembly according to embodiment 4 of the present application; 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;

[0025] Figure 9 1 shows a schematic structural diagram of a camera lens assembly according to embodiment 5 of the present application; 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;

[0026] Figure 11 1 shows a schematic structural diagram of a camera lens assembly according to Example 6 of the present application; 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;

[0027] Figure 13 1 shows a schematic structural diagram of a camera lens assembly according to Example 7 of the present application; 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

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] The features, principles and other aspects of the present application are described in detail below.

[0036] The camera lens assembly according to an exemplary embodiment of the present application may include, for example, seven lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. These seven lenses are arranged sequentially along the optical axis from the object side to the image side. Among the first through seventh lenses, any two adjacent lenses may have an air space between them.

[0037] In an exemplary embodiment, the camera lens assembly may further include at least one aperture. The aperture may be positioned appropriately as needed, for example, between the object side and the first lens element. 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.

[0038] In an exemplary embodiment, the first lens may have positive power; the second lens may have negative power; the third lens may have positive power; the fourth lens may have positive or negative power; the fifth lens may have positive or negative power; the sixth lens may have positive power; and the seventh lens may have negative power. By properly controlling the positive and negative power distribution of each component of the system and the lens surface curvature, the low-order aberrations of the system can be effectively balanced.

[0039] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional formula Fno ≤ 1.53, where Fno is the aperture number of the camera lens assembly. By controlling the aperture number of the camera lens assembly, the camera lens assembly can have a large aperture characteristic. For example, Fno may satisfy 1.48 < Fno ≤ 1.53.

[0040] In an exemplary embodiment, the camera lens assembly provided by the present application may satisfy the conditional formula TTL / ImgH ≤ 1.31, where TTL is the on-axis distance from the object-side surface of the first lens to the imaging surface of the camera lens assembly, and ImgH is half the diagonal length of the effective pixel area on the imaging surface of the camera lens assembly. By controlling the ratio of the total optical length and image height of the camera lens assembly, the size of the camera lens assembly can be effectively controlled while maintaining a large image surface. This ensures the ultra-thinness of the camera lens assembly while being compatible with an oversized photosensitive surface and effectively improving imaging efficiency. More specifically, TTL and ImgH may satisfy 1.25 < TTL / ImgH ≤ 1.31.

[0041] In an exemplary embodiment, the camera lens assembly provided herein can satisfy the conditional equation 11.50mm < f3 / f × ImgH < 14.00mm, where f3 is the effective focal length of the third lens element, f is the total effective focal length of the camera lens assembly, and ImgH is half the diagonal length of the effective pixel area on the imaging plane. Controlling this conditional equation helps achieve an ultra-large photosensitive surface and effectively improves imaging efficiency. More specifically, f, f3, and ImgH can satisfy 11.90mm < f3 / f × ImgH < 13.70mm.

[0042] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation 19.00 < f34 / BFL < 33.00, where f34 is the combined focal length of the third and fourth lenses, and BFL is the optical back focus of the camera lens assembly. Controlling the ratio of the combined focal length of the third and fourth lenses to the optical back focus within this range ensures a sufficiently large optical back focus of the camera lens assembly, thereby facilitating autofocus. More specifically, f34 and BFL may satisfy 19.50 < f34 / BFL < 32.90.

[0043] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation 2.00 < R2 / f1 < 3.00, where R2 is the radius of curvature of the image-side surface of the first lens element, and f1 is the effective focal length of the first lens element. By controlling the ratio of the radius of curvature of the image-side surface of the proposed lens element to its effective focal length, the curvature of the image-side surface of the first lens element can be controlled, thereby facilitating molding and demolding of the first lens element. More specifically, R2 and f1 may satisfy 2.10 < R2 / f1 < 2.70.

[0044] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation 2.00 < (R6 + R5) / (R6 - R5) < 3.50, where R5 is the radius of curvature of the object-side surface of the third lens, and R6 is the radius of curvature of the image-side surface of the third lens. By controlling the ratio of the radius of curvature of the two mirror surfaces of the third lens within this range, the optical power of the third lens of the camera lens assembly can be constrained, thereby effectively improving the aberration correction capability of the camera lens assembly. More specifically, R5 and R6 may satisfy 2.60 < (R6 + R5) / (R6 - R5) < 3.10.

[0045] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation ∑AT / TD ≤ 0.42, where TD is the on-axis distance from the object-side surface of the first lens to the image-side surface of the seventh lens, and ∑AT is the sum of the distances along the optical axis between any two adjacent lenses from the first to the seventh lenses. By controlling this conditional equation, the spacing between the lenses can be rationally controlled, preventing excessive deflection of the imaging light of the camera lens assembly while reducing the manufacturing difficulty of the camera lens assembly. ∑AT may satisfy ∑AT = T12 + T23 + T34 + T45 + T56 + T67. More specifically, ∑AT and TD may satisfy 0.4 < ∑AT / TD ≤ 0.42.

[0046] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation 2.00 < T67 / CT6 < 3.00, where CT6 is the center thickness of the sixth lens element on the optical axis, and T67 is the distance between the sixth and seventh lenses on the optical axis. By controlling the ratio of the air distance between the sixth and seventh lenses on the optical axis to the center thickness of the sixth lens on the optical axis, the field curvature balance of the camera lens assembly can be effectively controlled, resulting in a suitable field curvature. More specifically, T67 and CT6 may satisfy the conditional equation 2.00 < T67 / CT6 < 2.80.

[0047] In an exemplary embodiment, the camera lens group provided by the present application can satisfy the conditional formula 4.50<(SAG51+SAG52) / (SAG52-SAG51)<6.50, wherein SAG51 is the on-axis distance between 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, and SAG52 is the on-axis distance between 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. By controlling the ratio of the sagittal heights of the two mirror surfaces of the fifth lens, it is beneficial to ensure better processing and molding of the fifth lens, thereby obtaining good imaging effects. More specifically, SAG51 and SAG52 can satisfy 4.90<(SAG51+SAG52) / (SAG52-SAG51)<6.20.

[0048] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation 2.00 < (SAG31 + SAG32) / (SAG31 - SAG32) < 2.50, where SAG31 is the on-axis distance between the intersection of the object-side surface of the third lens and the optical axis and the vertex of the effective radius of the object-side surface of the third lens, and SAG32 is the on-axis distance between the intersection of the image-side surface of the third lens and the optical axis and the vertex of the effective radius of the image-side surface of the third lens. By controlling the ratio of the sagittal heights of the two mirror surfaces of the third lens, it is advantageous to ensure that the third lens is well processed and formed, thereby achieving excellent imaging effects.

[0049] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation 5.00 < (DT11 + DT62) / (DT62 - DT11) < 7.50, where DT11 is the maximum effective radius of the object-side surface of the first lens element, and DT62 is the maximum effective radius of the image-side surface of the sixth lens element. By properly controlling the maximum effective radius of the first and sixth lenses, it is possible to reduce the object-side and image-side dimensions of the camera lens assembly and reduce step differences. Furthermore, it is possible to reasonably limit the range of incident light to eliminate low-quality light at the edges, thereby reducing off-axis aberrations and effectively improving the resolution of the camera lens assembly.

[0050] In an exemplary embodiment, the camera lens assembly provided by the present application may satisfy the conditional formula 19.00 < (DT71 + DT72) / (DT72 - DT71) < 65.00, where DT71 is the maximum effective radius of the object side surface of the seventh lens, and DT72 is the maximum effective radius of the image side surface of the seventh lens. By matching the maximum effective radii of the two mirror surfaces of the seventh lens, it is possible to effectively prevent the effective radius of the object side surface of the seventh lens from being too different from the effective radius of the image side surface, thereby facilitating the processing and molding of the seventh lens, and further facilitating the stability of the performance of the camera lens assembly. More specifically, DT71 and DT72 may satisfy 19.50 < (DT71 + DT72) / (DT72 - DT71) < 64.20.

[0051] In an exemplary embodiment, the camera lens assembly provided herein may satisfy the conditional equation 0.50 < ET6 / ET7 < 2.00, where ET6 is the edge thickness of the sixth lens element and ET7 is the edge thickness of the seventh lens element. Controlling the ratio of the edge thickness of the sixth lens to the edge thickness of the seventh lens facilitates better molding and processing of the sixth and seventh lenses. More specifically, ET6 and ET7 may satisfy 0.80 < ET6 / ET7 < 1.60.

[0052] The camera lens assembly according to the above-described embodiment of the present application can utilize multiple lenses, such as the seven lenses described above. By rationally allocating the focal power, surface shape, center thickness of each lens, and on-axis spacing between lenses, the imaging system can be effectively reduced in size, its sensitivity can be reduced, and its manufacturability can be improved, making the camera lens assembly more amenable to production and processing and suitable for use in portable electronic products. Furthermore, the camera lens assembly of the present application also exhibits excellent optical properties such as large aperture, large aperture, high light flux, large image area, and high imaging efficiency.

[0053] 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 object side surface of the first lens and the image side surface of the seventh 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, which 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, the sixth lens and the seventh 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, the sixth lens and the seventh lens are all aspherical mirror surfaces.

[0054] 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 claimed technical solutions. For example, while seven lenses are described in the embodiments, the camera lens assembly is not limited to including seven lenses. If desired, the camera lens assembly can also include other numbers of lenses.

[0055] Specific embodiments of the camera lens assembly applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0056] Example 1

[0057] 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.

[0058] like Figure 1 As shown, the camera lens group includes, from the object side to the image side along the optical axis, 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 seventh lens E7 and a filter E8.

[0059] 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 negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive 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 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 convex. The seventh lens E7 has negative focal power, with its object-side surface S13 being concave and its image-side surface S14 being convex. The filter E8 has an object-side surface S15 and an image-side surface S16. The camera lens assembly has an imaging surface S17 , and light from an object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface S17 .

[0060] 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).

[0061]

[0062] Table 1

[0063] In Example 1, the total effective focal length f of the camera lens group is 5.50 mm, the on-axis distance TTL from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.30 mm, the value ImgH of half the diagonal length of the effective pixel area on the imaging surface S17 is 4.85 mm, and the value Semi-FOV of half the maximum field of view is 40.8°.

[0064] In Example 1, the object-side surface and the image-side surface of any lens among the first lens E1 to the seventh lens E7 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:

[0065]

[0066] 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. Table 2 below lists the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39 10 、A 12 、A 14 、A 16 、A 18 and A 20 .

[0067] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 2.8088E-03 -1.0506E-02 2.1068E-02 -2.4489E-02 1.7297E-02 -7.5984E-03 2.0251E-03 -3.0040E-04 1.8910E-05 S2 1.0486E-02 -3.2482E-02 3.4097E-02 -2.4599E-02 1.3077E-02 -4.8910E-03 1.1793E-03 -1.6309E-04 9.8824E-06 S3 -9.4233E-03 -2.6216E-02 4.0291E-02 -3.7380E-02 2.5015E-02 -1.1279E-02 3.1630E-03 -4.9422E-04 3.2893E-05 S4 -1.8286E-02 2.4811E-03 2.3335E-02 -4.9578E-02 6.0594E-02 -4.5517E-02 2.0895E-02 -5.3040E-03 5.5907E-04 S5 -3.0070E-03 -3.0183E-02 9.3763E-02 -1.5323E-01 1.5806E-01 -1.0432E-01 4.3394E-02 -1.0268E-02 1.0456E-03 S6 -8.5706E-03 -2.2530E-02 1.0836E-01 -2.6019E-01 3.6388E-01 -3.0585E-01 1.5242E-01 -4.1416E-02 4.7399E-03 S7 -5.1697E-02 4.9737E-02 -1.6952E-01 3.2802E-01 -4.0543E-01 3.1068E-01 -1.4344E-01 3.6598E-02 -3.9737E-03 S8 -4.5743E-02 -1.3250E-02 6.0852E-02 -1.1464E-01 1.1435E-01 -7.0762E-02 2.7176E-02 -5.8852E-03 5.4619E-04 S9 -3.5213E-02 -1.3714E-02 4.7509E-02 -4.8388E-02 2.7017E-02 -1.2070E-02 4.4534E-03 -1.0022E-03 9.2180E-05 S10 -5.7845E-02 1.9312E-02 -3.2574E-02 5.9365E-02 -5.2599E-02 2.4761E-02 -6.4175E-03 8.6635E-04 -4.7684E-05 S11 1.6805E-02 -5.4852E-02 3.2212E-02 -1.7747E-02 8.1406E-03 -2.6300E-03 5.2005E-04 -5.4865E-05 2.3495E-06 S12 5.8200E-02 -5.0745E-02 1.3827E-02 -1.1057E-03 -4.3071E-04 1.3856E-04 -1.5623E-05 6.5386E-07 -2.0569E-09 S13 6.2030E-02 -4.5249E-02 1.5648E-02 -2.9409E-03 3.3663E-04 -2.4325E-05 1.0890E-06 -2.7650E-08 3.0464E-10 S14 2.4699E-03 -9.6047E-03 2.9826E-03 -4.7196E-04 4.2728E-05 -2.2578E-06 6.8292E-08 -1.0726E-09 6.0314E-12

[0068] Table 2

[0069] Figure 2A The axial chromatic aberration curve of the camera lens set of Example 1 is shown, which indicates the deviation of the convergent focus of light of different wavelengths after passing through the system. 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 system. Figures 2A to 2D It can be seen that the camera lens assembly provided in Example 1 can achieve good imaging quality.

[0070] Example 2

[0071] 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.

[0072] like Figure 3 As shown, the camera lens group includes, from the object side to the image side along the optical axis, 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 seventh lens E7 and a filter E8.

[0073] 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 negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive 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 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 convex. The seventh lens E7 has negative focal power, with its object-side surface S13 being concave and its image-side surface S14 being concave. The filter E8 has an object-side surface S15 and an image-side surface S16. The camera lens assembly has an imaging surface S17 , and light from an object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface S17 .

[0074] In Example 2, the total effective focal length f of the camera lens group is 5.51 mm, the on-axis distance TTL from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.31 mm, the half diagonal length ImgH of the effective pixel area on the imaging surface S17 is 4.86 mm, and the half maximum field of view Semi-FOV is 40.8°.

[0075] 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.

[0076]

[0077] Table 3

[0078] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 2.9300E-03 -1.0612E-02 2.1379E-02 -2.5012E-02 1.7803E-02 -7.8845E-03 2.1188E-03 -3.1692E-04 2.0117E-05 S2 1.0965E-02 -3.4320E-02 3.7193E-02 -2.7278E-02 1.4431E-02 -5.3110E-03 1.2582E-03 -1.7137E-04 1.0265E-05 S3 -9.4408E-03 -2.7430E-02 4.1979E-02 -3.8053E-02 2.4725E-02 -1.0894E-02 3.0094E-03 -4.6592E-04 3.0855E-05 S4 -1.8504E-02 2.6834E-03 2.2909E-02 -4.9490E-02 6.1623E-02 -4.6912E-02 2.1694E-02 -5.5284E-03 5.8440E-04 S5 -3.0039E-03 -2.8220E-02 8.8400E-02 -1.4504E-01 1.5021E-01 -9.9439E-02 4.1493E-02 -9.8553E-03 1.0085E-03 S6 -8.7923E-03 -1.9430E-02 9.6567E-02 -2.3548E-01 3.3312E-01 -2.8268E-01 1.4207E-01 -3.8900E-02 4.4834E-03 S7 -5.0798E-02 4.7085E-02 -1.6554E-01 3.2514E-01 -4.0549E-01 3.1271E-01 -1.4517E-01 3.7236E-02 -4.0650E-03 S8 -4.5499E-02 -1.2678E-02 5.4790E-02 -1.0181E-01 1.0064E-01 -6.2081E-02 2.3881E-02 -5.1931E-03 4.8431E-04 S9 -3.3874E-02 -1.3337E-02 4.1779E-02 -4.0152E-02 2.0690E-02 -8.9876E-03 3.5099E-03 -8.3904E-04 8.0213E-05 S10 -5.5465E-02 1.7615E-02 -3.1785E-02 5.7939E-02 -5.1034E-02 2.3937E-02 -6.1904E-03 8.3437E-04 -4.5861E-05 S11 1.6284E-02 -5.1844E-02 2.8861E-02 -1.5525E-02 7.1343E-03 -2.3172E-03 4.5866E-04 -4.8228E-05 2.0523E-06 S12 5.6808E-02 -4.7964E-02 1.1658E-02 -1.4303E-04 -6.9963E-04 1.8801E-04 -2.1514E-05 1.0654E-06 -1.4727E-08 S13 6.1953E-02 -4.5195E-02 1.5618E-02 -2.9343E-03 3.3591E-04 -2.4285E-05 1.0881E-06 -2.7663E-08 3.0535E-10 S14 2.6397E-03 -9.9969E-03 3.1726E-03 -5.1836E-04 4.9432E-05 -2.8514E-06 9.9882E-08 -2.0035E-09 1.7773E-11

[0079] Table 4

[0080] Figure 4A The axial chromatic aberration curve of the camera lens set of Example 2 is shown, which indicates the deviation of the convergent focus of light of different wavelengths after passing through the system. 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 system. Figures 4A to 4D It can be seen that the camera lens assembly provided in Example 2 can achieve good imaging quality.

[0081] Example 3

[0082] 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.

[0083] like Figure 5 As shown, the camera lens group includes, from the object side to the image side along the optical axis, 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 seventh lens E7 and a filter E8.

[0084] 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 negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive 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 convex 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 seventh lens E7 has negative focal power, with its object-side surface S13 being concave and its image-side surface S14 being convex. The filter E8 has an object-side surface S15 and an image-side surface S16. The camera lens assembly has an imaging surface S17 , and light from an object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface S17 .

[0085] In Example 3, the total effective focal length f of the camera lens group is 5.52 mm, the on-axis distance TTL from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.32 mm, the half diagonal length ImgH of the effective pixel area on the imaging surface S17 is 4.87 mm, and the half maximum field of view Semi-FOV is 40.8°.

[0086] 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.

[0087]

[0088] Table 5

[0089]

[0090]

[0091] Table 6

[0092] Figure 6A The axial chromatic aberration curve of the camera lens set of Example 3 is shown, which indicates the deviation of the convergent focus of light of different wavelengths after passing through the system. 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 different image heights on the imaging surface after the light passes through the system. 6A to 6D It can be seen that the camera lens assembly provided in Example 3 can achieve good imaging quality.

[0093] Example 4

[0094] 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.

[0095] like Figure 7 As shown, the camera lens group includes, from the object side to the image side along the optical axis, 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 seventh lens E7 and a filter E8.

[0096] 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 negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive 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 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 positive focal power, with its object-side surface S11 being convex and its image-side surface S12 being convex. The seventh lens E7 has negative focal power, with its object-side surface S13 being concave and its image-side surface S14 being convex. The filter E8 has an object-side surface S15 and an image-side surface S16. The camera lens assembly has an imaging surface S17 , and light from an object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface S17 .

[0097] In Example 4, the total effective focal length f of the camera lens group is 5.49 mm, the on-axis distance TTL from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.29 mm, the value ImgH of half the diagonal length of the effective pixel area on the imaging surface S17 is 48.3 mm, and the value Semi-FOV of half the maximum field of view is 40.7°.

[0098] 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.

[0099]

[0100]

[0101] Table 7

[0102] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 1.7484E-03 -6.1702E-03 1.3186E-02 -1.6161E-02 1.2006E-02 -5.5499E-03 1.5558E-03 -2.4257E-04 1.5981E-05 S2 1.6662E-03 5.2175E-03 -2.9608E-02 3.6325E-02 -2.3609E-02 9.3011E-03 -2.2421E-03 3.0431E-04 -1.7727E-05 S3 -2.1374E-02 1.5645E-02 -2.6374E-02 2.3152E-02 -9.4190E-03 1.3043E-03 2.9081E-04 -1.2167E-04 1.1921E-05 S4 -2.6222E-02 1.9076E-02 7.2810E-03 -5.7699E-02 9.3808E-02 -7.9087E-02 3.8020E-02 -9.7523E-03 1.0233E-03 S5 -5.2862E-03 -3.4721E-02 1.1938E-01 -2.1226E-01 2.2946E-01 -1.5549E-01 6.5253E-02 -1.5367E-02 1.5422E-03 S6 -8.2945E-03 -1.5341E-02 6.9312E-02 -1.6603E-01 2.3397E-01 -1.9959E-01 1.0129E-01 -2.8021E-02 3.2641E-03 S7 -4.7038E-02 4.5491E-02 -1.9381E-01 4.2045E-01 -5.5446E-01 4.4420E-01 -2.1250E-01 5.5928E-02 -6.2443E-03 S8 -4.5279E-02 -2.2897E-02 7.0761E-02 -1.0972E-01 9.7667E-02 -5.6967E-02 2.1556E-02 -4.7157E-03 4.4651E-04 S9 -2.6680E-02 -3.9090E-02 7.7736E-02 -7.0440E-02 3.8227E-02 -1.7009E-02 6.2522E-03 -1.4025E-03 1.2907E-04 S10 -5.8390E-02 1.7586E-02 -3.7641E-02 7.1232E-02 -6.3447E-02 3.0002E-02 -7.8251E-03 1.0648E-03 -5.9145E-05 S11 1.5434E-02 -3.7157E-02 8.5196E-03 -1.0513E-03 5.5377E-04 -3.9792E-04 1.1765E-04 -1.4888E-05 6.8341E-07 S12 5.3677E-02 -3.4663E-02 -2.3782E-03 7.2545E-03 -3.1028E-03 6.7726E-04 -8.0450E-05 4.8031E-06 -1.0761E-07 S13 5.3926E-02 -3.7749E-02 1.2702E-02 -2.2916E-03 2.4868E-04 -1.6817E-05 6.9427E-07 -1.5961E-08 1.5520E-10 S14 2.4232E-03 -8.1416E-03 2.3599E-03 -3.2842E-04 2.0908E-05 -8.2856E-08 -6.4661E-08 3.3827E-09 -5.6270E-11

[0103] Table 8

[0104] Figure 8A The axial chromatic aberration curve of the camera lens set of Example 4 is shown, which indicates the deviation of the convergent focus of light of different wavelengths after passing through the system. 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 different image heights on the imaging surface after the light passes through the system. Figures 8A to 8D It can be seen that the camera lens assembly provided in Example 4 can achieve good imaging quality.

[0105] Example 5

[0106] 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.

[0107] like Figure 9 As shown, the camera lens group includes, from the object side to the image side along the optical axis, 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 seventh lens E7 and a filter E8.

[0108] 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 negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex 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 positive focal power, with its object-side surface S11 being convex and its image-side surface S12 being convex. The seventh lens E7 has negative focal power, with its object-side surface S13 being concave and its image-side surface S14 being concave. The filter E8 has an object-side surface S15 and an image-side surface S16. The camera lens assembly has an imaging surface S17 , and light from an object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface S17 .

[0109] In Example 5, the total effective focal length f of the camera lens group is 5.48 mm, the on-axis distance TTL from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.28 mm, the half diagonal length ImgH of the effective pixel area on the imaging surface S17 is 4.84 mm, and the half maximum field of view Semi-FOV is 40.8°.

[0110] 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.

[0111]

[0112] Table 9

[0113]

[0114]

[0115] Table 10

[0116] Figure 10A The axial chromatic aberration curve of the camera lens set of Example 5 is shown, which indicates the deviation of the convergent focus of light of different wavelengths after passing through the system. 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 system. 10A to 10D It can be seen that the camera lens assembly provided in Example 5 can achieve good imaging quality.

[0117] Example 6

[0118] 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.

[0119] like Figure 11 As shown, the camera lens group includes, from the object side to the image side along the optical axis, 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 seventh lens E7 and a filter E8.

[0120] 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 negative optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive optical power, with its object-side surface S5 being convex 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 negative optical power, with its object-side surface S9 being convex and its image-side surface S10 being concave. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being convex. The seventh lens E7 has negative optical power, with its object-side surface S13 being concave and its image-side surface S14 being convex. The filter E8 has an object-side surface S15 and an image-side surface S16. The camera lens assembly has an imaging surface S17 , and light from an object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface S17 .

[0121] In Example 6, the total effective focal length f of the camera lens group is 5.47 mm, the on-axis distance TTL from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.33 mm, the value ImgH of half the diagonal length of the effective pixel area on the imaging surface S17 is 4.85 mm, and the value Semi-FOV of half the maximum field of view is 40.9°.

[0122] 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.

[0123]

[0124]

[0125] Table 11

[0126] Face number A4 A6 A8 A10 A12 A14 A16 A18 A20 S1 2.6677E-03 -9.6242E-03 1.9441E-02 -2.2800E-02 1.6328E-02 -7.2833E-03 1.9700E-03 -2.9601E-04 1.8812E-05 S2 2.7024E-03 -1.0187E-02 3.1852E-03 4.5835E-03 -5.6770E-03 2.9301E-03 -8.2183E-04 1.2104E-04 -7.2422E-06 S3 -1.6776E-02 -1.0610E-02 2.1185E-02 -2.0621E-02 1.4380E-02 -6.7578E-03 1.9873E-03 -3.2868E-04 2.3394E-05 S4 -1.8905E-02 4.9948E-03 1.2281E-02 -3.5495E-02 5.3218E-02 -4.6916E-02 2.4373E-02 -6.7432E-03 7.5325E-04 S5 1.1866E-03 -3.4671E-02 1.0116E-01 -1.7292E-01 1.8838E-01 -1.3162E-01 5.7586E-02 -1.4147E-02 1.4741E-03 S6 -6.8759E-03 -1.9271E-02 8.2159E-02 -1.8915E-01 2.5790E-01 -2.1248E-01 1.0411E-01 -2.7806E-02 3.1272E-03 S7 -4.5073E-02 3.6452E-02 -1.5260E-01 3.0492E-01 -3.8314E-01 2.9793E-01 -1.3983E-01 3.6392E-02 -4.0433E-03 S8 -3.1117E-02 -3.3380E-02 8.8875E-02 -1.5727E-01 1.6127E-01 -1.0322E-01 4.0627E-02 -8.9367E-03 8.3788E-04 S9 -4.7509E-02 1.4524E-02 3.9403E-03 -5.0210E-03 -2.4553E-03 1.7493E-03 2.2895E-04 -2.5348E-04 3.4067E-05 S10 -8.0690E-02 4.3966E-02 -5.8659E-02 7.5800E-02 -5.7804E-02 2.5137E-02 -6.1803E-03 8.0000E-04 -4.2441E-05 S11 -1.4321E-04 -3.7673E-02 1.9454E-02 -1.0175E-02 4.7699E-03 -1.6152E-03 3.2774E-04 -3.4198E-05 1.3969E-06 S12 5.0570E-02 -3.9420E-02 8.8335E-03 -2.8994E-04 -2.8874E-04 4.6077E-05 2.2734E-06 -9.5843E-07 5.5286E-08 S13 5.2774E-02 -3.6251E-02 1.1903E-02 -2.0989E-03 2.2296E-04 -1.4767E-05 5.9646E-07 -1.3373E-08 1.2589E-10 S14 3.8054E-03 -8.2390E-03 1.9784E-03 -1.9123E-04 7.4194E-07 1.4500E-06 -1.2697E-07 4.6235E-09 -6.4946E-11

[0127] Table 12

[0128] Figure 12A The axial chromatic aberration curve of the camera lens set of Example 6 is shown, which indicates the deviation of the convergent focus of light of different wavelengths after passing through the system. 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 different image heights on the imaging surface after the light passes through the system. 12A to 12D It can be seen that the camera lens assembly provided in Example 6 can achieve good imaging quality.

[0129] Example 7

[0130] 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.

[0131] like Figure 13 As shown, the camera lens group includes, from the object side to the image side along the optical axis, 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 seventh lens E7 and a filter E8.

[0132] 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 negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive 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 positive 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 seventh lens E7 has negative focal power, with its object-side surface S13 being concave and its image-side surface S14 being convex. The filter E8 has an object-side surface S15 and an image-side surface S16. The camera lens assembly has an imaging surface S17 , and light from an object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface S17 .

[0133] In Example 7, the total effective focal length f of the camera lens group is 5.46 mm, the on-axis distance TTL from the object-side surface S1 of the first lens E1 to the imaging surface S17 is 6.35 mm, the value ImgH of half the diagonal length of the effective pixel area on the imaging surface S17 is 4.90 mm, and the value Semi-FOV of half the maximum field of view is 41.3°.

[0134] 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). Table 14 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 7, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0135]

[0136] Table 13

[0137]

[0138]

[0139] Table 14

[0140] Figure 14A The axial chromatic aberration curve of the camera lens set of Example 7 is shown, which indicates the deviation of the convergent focus of light of different wavelengths after passing through the system. 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 different image heights on the imaging surface after the light passes through the system. 14A to 14D It can be seen that the camera lens assembly provided in Example 7 can achieve good imaging quality.

[0141] In summary, Examples 1 to 7 respectively satisfy the relationships shown in Table 15.

[0142] Conditional formula\Example 1 2 3 4 5 6 7 Fno 1.50 1.51 1.52 1.50 1.49 1.50 1.53 TTL / ImgH 1.30 1.30 1.30 1.30 1.30 1.31 1.30 f3 / f×ImgH(mm) 12.63 12.60 12.46 11.93 13.61 13.02 12.60 f34 / BFL 24.60 25.31 24.74 32.81 20.94 19.54 22.14 R2 / f1 2.32 2.37 2.27 2.15 2.31 2.66 2.29 (R6+R5) / (R6-R5) 2.74 2.73 2.73 2.65 3.01 2.61 2.62 ∑AT / TD 0.41 0.41 0.41 0.42 0.41 0.41 0.41 T67 / CT6 2.14 2.16 2.09 2.74 2.14 2.04 2.10 (SAG51+SAG52) / (SAG52-SAG51) 6.01 5.92 5.73 6.11 5.92 5.81 4.96 (SAG31+SAG32) / (SAG31-SAG32) 2.28 2.27 2.26 2.16 2.43 2.16 2.07 (DT11+DT62) / (DT62-DT11) 5.74 6.08 6.20 7.27 6.70 6.76 5.08 (DT71+DT72) / (DT72-DT71) 19.64 21.39 64.15 47.17 51.53 48.43 50.28 ET6 / ET7 0.90 0.90 1.59 0.88 1.29 1.26 1.41

[0143] Table 15

[0144] The present application also provides an imaging device, which is provided with an electronic photosensitive element for imaging. The electronic photosensitive element can be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device can be an independent 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.

[0145] 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 protection provided in this application is not limited to the technical solutions formed by a 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 concept of this application. 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: Aperture; The first lens has positive refractive power, its object-side surface is convex and its image-side surface is concave; a second lens having negative optical power, the object-side surface of which is convex and the image-side surface of which is concave; The third lens has positive optical power, its object-side surface is convex and its image-side surface is concave; a fourth lens having optical power; a fifth lens having optical power and a convex object-side surface; a sixth lens element having positive optical power and a convex object-side surface; and a seventh lens element having negative optical power and a concave object-side surface; The number of lenses with optical power in the camera lens group is seven; The aperture number Fno of the camera lens group satisfies: 1.49≤Fno≤1.53; 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≤1.31; The effective focal length f3 of the third lens, the total effective focal length f of the camera lens assembly, and half the diagonal length of the effective pixel area on the imaging plane ImgH satisfy the following conditions: 11.93 mm ≤ f3 / f×ImgH ≤ 13.61 mm; The curvature radius R5 of the object-side surface of the third lens and the curvature radius R6 of the image-side surface of the third lens satisfy: 2.61≤(R6+R5) / (R6-R5)≤3.01; and A center thickness CT6 of the sixth lens on the optical axis and a distance T67 between the sixth lens and the seventh lens on the optical axis satisfy the following: 2.00<T67 / CT6≤2.

74.

2. The camera lens assembly according to claim 1, wherein: The combined focal length f34 of the third lens and the fourth lens and the optical back focus BFL of the camera lens group satisfy: 19.54≤f34 / BFL≤32.

81.

3. The camera lens assembly according to claim 1, wherein: The curvature radius R2 of the image-side surface of the first lens and the effective focal length f1 of the first lens satisfy: 2.15≤R2 / f1≤2.

66.

4. The camera lens assembly according to claim 1, wherein: The on-axis distance TD from the object-side surface of the first lens to the image-side surface of the seventh lens and the sum ΣAT of the distances between any two adjacent lenses from the first lens to the seventh lens on the optical axis satisfy: 0.41≤∑AT / TD≤0.

42.

5. The camera lens assembly according to claim 1, wherein: An on-axis distance SAG51 between the intersection of the object-side surface of the fifth lens and the optical axis and the vertex of the effective radius of the object-side surface of the fifth lens and an on-axis distance SAG52 between the intersection of the image-side surface of the fifth lens and the optical axis and the vertex of the effective radius of the image-side surface of the fifth lens satisfy: 4.50<(SAG51+SAG52) / (SAG52-SAG51)≤6.

11.

6. The camera lens assembly according to claim 1, wherein: An on-axis distance SAG31 between the intersection of the object-side surface of the third lens and the optical axis and the vertex of the effective radius of the object-side surface of the third lens and an on-axis distance SAG32 between the intersection of the image-side surface of the third lens and the optical axis and the vertex of the effective radius of the image-side surface of the third lens satisfy: 2.07≤(SAG31+SAG32) / (SAG31-SAG32)≤2.

43.

7. 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 DT62 of the image-side surface of the sixth lens satisfy: 5.08≤(DT11+DT62) / (DT62-DT11)≤7.

27.

8. The camera lens assembly according to claim 1, wherein: The maximum effective radius DT71 of the object-side surface of the seventh lens and the maximum effective radius DT72 of the image-side surface of the seventh lens satisfy: 19.64≤(DT71+DT72) / (DT72-DT71)≤64.

15.

9. The camera lens assembly according to any one of claims 1 to 8, wherein: The edge thickness ET6 of the sixth lens and the edge thickness ET7 of the seventh lens satisfy: 0.88≤ET6 / ET7≤1.59.

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