camera lens

Abstract

This application relates to a camera lens, which, along its optical axis from the object side to the image side, sequentially comprises: a first lens with positive optical power; a second lens with negative optical power; a third lens with positive optical power; a fourth lens with negative optical power; a fifth lens with positive optical power; and a sixth lens with negative optical power. The total effective focal length f of the camera lens and the maximum field of view FOV of the camera lens satisfy: 3 ≤ f * tan(FOV / 3) < 4; and the effective radius R3 of the object side of the second lens and the effective radius R6 of the image side of the third lens satisfy: -1.0. <R3 / R6<‑0.5。

Description

[0001] Divisional application statement

[0002] This application is a divisional application of Chinese invention patent application filed on December 2, 2020, entitled "Camera Lens" and with application number 202011389744.9. Technical Field

[0003] This application relates to the field of optical components, and more specifically, to a camera lens. Background Technology

[0004] In recent years, with the rapid development of the smartphone industry, the requirements for smartphone camera lenses have become increasingly stringent. To meet market demands, camera lenses need to evolve towards larger image sensors and ultra-thin designs. A larger image sensor means a higher resolution, while ultra-thin design allows for better compatibility and matching between the lens and smartphone. However, these requirements are difficult to meet with traditional five-element camera lenses.

[0005] Therefore, in order to meet the current demand for camera lenses on smartphones, there is an urgent need to design an ultra-thin, large-image-size six-element camera lens. Summary of the Invention

[0006] On one hand, this application provides a camera lens that, along the optical axis from the object side to the image side, sequentially comprises: a first lens with positive optical power; a second lens with optical power; a third lens with optical power; a fourth lens with optical power; a fifth lens with positive optical power; and a sixth lens with negative optical power; wherein, half the diagonal length of the effective pixel area on the imaging plane of the camera lens, ImgH, the distance TTL from the object side of the first lens to the imaging plane of the camera lens on the optical axis, and the total effective focal length of the camera lens can satisfy: 0.8≤ImgH^2 / (TTL*f)<1.0; and the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens can satisfy: -1.0. <f3 / f2-f3 / f4<-0.5。

[0007] In some implementations, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens can satisfy: -1.2 <f4 / f3<-0.9。

[0008] In some implementations, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens can satisfy: 1.0 ≤ f1 / f5 < 1.2.

[0009] In some implementations, the total effective focal length f of the camera lens and the effective focal length f6 of the sixth lens can satisfy: -2.0 <f / f6<-1.5。

[0010] In some embodiments, the total effective focal length f of the camera lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens can satisfy: 0.7 <f / (R3-R4)<1.2。

[0011] In some embodiments, the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R6 of the image-side surface of the third lens can satisfy: -1.0 <R3 / R6<-0.5。

[0012] In some implementations, the total effective focal length f of the camera lens and the radius of curvature R7 of the object-side surface of the fourth lens can satisfy: 0 <f / R7<0.3。

[0013] In some implementations, the total effective focal length f of the camera lens and the radius of curvature R11 of the object-side surface of the sixth lens can satisfy: -1.0 <f / R11<0。

[0014] In some implementations, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens can satisfy: 1.0≤R8 / R9<1.5.

[0015] In some embodiments, the radius of curvature R9 of the object side of the fifth lens and the radius of curvature R10 of the image side of the fifth lens can satisfy: 1.5 < (R9-R10) / (R9+R10) < 3.0.

[0016] In some implementations, the total effective focal length f of the camera lens and the maximum field of view FOV of the camera lens can satisfy: f*tan(FOV / 3)≥3.

[0017] In some embodiments, the total effective focal length f of the camera lens and the optical axis spacing T56 between the fifth and sixth lenses can satisfy: 6 <f / T56<8。

[0018] On the other hand, this application provides a camera lens comprising, sequentially from the object side to the image side along the optical axis: a first lens with positive optical power; a second lens with optical power; a third lens with optical power; a fourth lens with optical power; a fifth lens with positive optical power; and a sixth lens with negative optical power; wherein the total effective focal length f of the camera lens and the maximum field of view FOV of the camera lens satisfy: f*tan(FOV / 3)≥3; and the effective radius R3 of the object side of the second lens and the effective radius R6 of the image side of the third lens satisfy: -1.0. <R3 / R6<-0.5。

[0019] In some implementations, half the diagonal length of the effective pixel area on the imaging surface of the camera lens, ImgH, the distance TTL from the object side of the first lens to the imaging surface of the camera lens on the optical axis, and the total effective focal length of the camera lens can satisfy: 0.8≤ImgH^2 / (TTL*f)<1.0.

[0020] In some embodiments, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens can satisfy: -1.0 <f3 / f2-f3 / f4<-0.5。

[0021] In some implementations, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens can satisfy: -1.2 <f4 / f3<-0.9。

[0022] In some implementations, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens can satisfy: 1.0 ≤ f1 / f5 < 1.2.

[0023] In some implementations, the total effective focal length f of the camera lens and the effective focal length f6 of the sixth lens can satisfy: -2.0 <f / f6<-1.5。

[0024] In some embodiments, the total effective focal length f of the camera lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens can satisfy: 0.7 <f / (R3-R4)<1.2。

[0025] In some implementations, the total effective focal length f of the camera lens and the radius of curvature R7 of the object-side surface of the fourth lens can satisfy: 0 <f / R7<0.3。

[0026] In some implementations, the total effective focal length f of the camera lens and the radius of curvature R11 of the object-side surface of the sixth lens can satisfy: -1.0 <f / R11<0。

[0027] In some implementations, the radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens can satisfy: 1.0≤R8 / R9<1.5.

[0028] In some embodiments, the radius of curvature R9 of the object side of the fifth lens and the radius of curvature R10 of the image side of the fifth lens can satisfy: 1.5 < (R9-R10) / (R9+R10) < 3.0.

[0029] In some embodiments, the total effective focal length f of the camera lens and the optical axis spacing T56 between the fifth and sixth lenses can satisfy: 6 <f / T56<8。

[0030] On the other hand, this application provides an electronic device, including a camera lens according to this application and an imaging element for converting an optical image formed by the camera lens into an electrical signal.

[0031] This application employs six lenses. By rationally allocating the optical power and surface shape of each lens, and controlling the overall optical length and image height of the camera lens, the aforementioned camera lens can achieve at least one beneficial effect such as miniaturization, large image area, ultra-thinness, and good imaging effect. Attached Figure Description

[0032] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings. In the drawings:

[0033] Figure 1 A schematic diagram of the camera lens according to Embodiment 1 of this application is shown;

[0034] Figures 2A to 2C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens of Embodiment 1 are shown respectively.

[0035] Figure 3 A schematic diagram of the camera lens according to Embodiment 2 of this application is shown;

[0036] Figures 4A to 4C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens in Embodiment 2 are shown respectively.

[0037] Figure 5 A schematic diagram of the camera lens according to Embodiment 3 of this application is shown;

[0038] Figures 6A to 6C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens in Example 3 are shown respectively.

[0039] Figure 7 A schematic diagram of the camera lens according to Embodiment 4 of this application is shown;

[0040] Figures 8A to 8C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens in Example 4 are shown respectively.

[0041] Figure 9 A schematic diagram of the camera lens according to Embodiment 5 of this application is shown;

[0042] Figures 10A to 10C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens in Example 5 are shown respectively.

[0043] Figure 11A schematic diagram of the structure of a camera lens according to Embodiment 6 of this application is shown;

[0044] Figures 12A to 12C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens of Embodiment 6 are shown respectively.

[0045] Figure 13 A schematic diagram of the camera lens according to Embodiment 7 of this application is shown;

[0046] Figures 14A to 14C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens of Embodiment 7 are shown respectively.

[0047] Figure 15 A schematic diagram of the structure of a camera lens according to Embodiment 8 of this application is shown; and

[0048] Figures 16A to 16C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the camera lens of Example 8 are shown respectively. Detailed Implementation

[0049] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this 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.

[0050] It should be noted that in this specification, the terms "first," "second," "third," etc., are used only to distinguish one feature from another and do not imply any limitation on the features. Therefore, without departing from the teachings of this application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0051] In the accompanying drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are illustrated by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustrative purposes only and are not strictly to scale.

[0052] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the location of the convexity is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the location of the concaveness is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is called the object-side surface of the lens, and the surface of each lens closest to the imaging side is called the image-side surface of the lens.

[0053] It should also be understood that the terms "comprising," "including," "having," "containing," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. Furthermore, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features, not individual elements in the list. Additionally, when describing embodiments of this application, the word "may" is used to mean "one or more embodiments of this application." And the term "exemplary" is intended to refer to an example or illustration.

[0054] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms (e.g., those defined in common dictionaries) shall be interpreted as having a meaning consistent with their meaning in the context of the relevant art and shall not be interpreted in an idealized or overly formalized sense, unless expressly so specified herein.

[0055] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0056] The features, principles and other aspects of this application are described in detail below.

[0057] A camera lens according to an exemplary embodiment of this application may include six lenses with 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 sequentially from the object side to the image side along the optical axis of the camera lens, and there may be an air gap between any two adjacent lenses.

[0058] In an exemplary embodiment, the first lens may have positive optical power; the second lens may have optical power; the third lens may have optical power; the fourth lens may have optical power; the fifth lens may have positive optical power; and the sixth lens may have negative optical power. By rationally combining the optical power and surface shape of each lens in the optical system, the rationality of the camera lens structure can be ensured.

[0059] In an exemplary embodiment, half of the diagonal length ImgH of the effective pixel region on the imaging surface of the camera lens, the distance TTL from the object side surface of the first lens to the imaging surface of the camera lens on the optical axis, and the total effective focal length f of the camera lens satisfy: 0.8 ≤ ImgH^2 / (TTL*f) < 1.0. Satisfying 0.8 ≤ ImgH^2 / (TTL*f) < 1.0 can increase the optical effective area and reduce the overall optical height, which is beneficial to achieving the feature of ultra-thinness. Specifically, ImgH, TTL, and f further satisfy: 0.81 ≤ ImgH^2 / (TTL*f) < 0.95.

[0060] In an exemplary embodiment, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens satisfy: -1.0 < f3 / f2 - f3 / f4 < -0.5. By controlling the effective focal lengths of the second lens, the third lens, and the fourth lens to satisfy -1.0 < f3 / f2 - f3 / f4 < -0.5, the second lens, the third lens, and the fourth lens can be better matched with each other to achieve a good imaging effect. More specifically, f2, f3, and f4 further satisfy: -0.9 < f3 / f2 - f3 / f4 < -0.6.

[0061] In an exemplary embodiment, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: -1.2 < f4 / f3 < -0.9. Satisfying -1.2 < f4 / f3 < -0.9 can reduce the sensitivity of the third lens to the refractive index of the material, which is beneficial to the processing and manufacturing of the third lens. More specifically, f3 and f4 further satisfy: -1.16 < f4 / f3 < -0.95.

[0062] In an exemplary embodiment, the effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy: 1.0 ≤ f1 / f5 < 1.2. Satisfying 1.0 ≤ f1 / f5 < 1.2 can improve the axial chromatic aberration of the camera lens, which is beneficial to ensuring the authenticity of colors. More specifically, f1 and f5 further satisfy: 1.05 ≤ f1 / f5 < 1.15.

[0063] In an exemplary embodiment, the total effective focal length f of the camera lens and the effective focal length f6 of the sixth lens satisfy: -2.0 < f / f6 < -1.5. Satisfying -2.0 < f / f6 < -1.5 can effectively reduce the distortion value of the camera lens. More specifically, f and f6 further satisfy: -1.80 < f / f6 < -1.55.

[0064] In an exemplary embodiment, the total effective focal length f of the camera lens, the radius of curvature R3 of the object side surface of the second lens, and the radius of curvature R4 of the image side surface of the second lens may satisfy: 0.7 < f / (R3 - R4) < 1.2. Satisfying 0.7 < f / (R3 - R4) < 1.2 can reduce the sensitivity of the second lens to thickness, which is beneficial to the manufacturing of the second lens. More specifically, f, R3, and R4 may further satisfy: 0.7 < f / (R3 - R4) < 1.15.

[0065] In an exemplary embodiment, the radius of curvature R3 of the object side surface of the second lens and the radius of curvature R6 of the image side surface of the third lens may satisfy: -1.0 < R3 / R6 < -0.5. Satisfying -1.0 < R3 / R6 < -0.5 can improve the lateral chromatic aberration of the camera lens, thereby effectively reducing the chromatic aberration range in the visible band. More specifically, R3 and R6 may further satisfy: -0.95 < R3 / R6 < -0.55.

[0066] In an exemplary embodiment, the total effective focal length f of the camera lens and the radius of curvature R7 of the object side surface of the fourth lens may satisfy: 0 < f / R7 < 0.3. Satisfying 0 < f / R7 < 0.3 can reduce the sensitivity of the fourth lens to the aspherical surface shape, which is beneficial to the manufacturing of the fourth lens. More specifically, f and R7 may further satisfy: 0.05 < f / R7 < 0.2.

[0067] In an exemplary embodiment, the total effective focal length f of the camera lens and the radius of curvature R11 of the object side surface of the sixth lens may satisfy: -1.0 < f / R11 < 0. Satisfying -1.0 < f / R11 < 0 can reduce the sensitivity of the sixth lens to the aspherical surface shape, which is beneficial to the manufacturing of the sixth lens. More specifically, f and R11 may further satisfy: -0.8 < f / R11 < 0.

[0068] In an exemplary embodiment, the radius of curvature R8 of the image side surface of the fourth lens and the radius of curvature R9 of the object side surface of the fifth lens may satisfy: 1.0 ≤ R8 / R9 < 1.5. Satisfying 1.0 ≤ R8 / R9 < 1.5 can reduce the sensitivity of the air gap between the fourth lens and the fifth lens to thickness, which is beneficial to the assembly production of the camera lens. More specifically, R8 and R9 may further satisfy: 1.0 ≤ R8 / R9 < 1.4.

[0069] In an exemplary embodiment, the radius of curvature R9 of the object side surface of the fifth lens and the radius of curvature R10 of the image side surface of the fifth lens may satisfy: 1.5 < (R9 - R10) / (R9 + R10) < 3.0. Satisfying 1.5 < (R9 - R10) / (R9 + R10) < 3.0 can reduce the sensitivity of the fifth lens to the aspherical surface shape, which is beneficial to the manufacturing of the fifth lens. More specifically, R9 and R10 may further satisfy: 1.6 < (R9 - R10) / (R9 + R10) < 2.9.

[0070] In an exemplary embodiment, the total effective focal length f of the camera lens and the maximum field of view angle FOV of the camera lens may satisfy: f * tan(FOV / 3) ≥ 3. Satisfying f * tan(FOV / 3) ≥ 3 can reduce the off-axis chromatic aberration of the camera lens and reduce the optical distortion of the system, which is beneficial to obtaining better imaging quality. More specifically, f and FOV may further satisfy: 3 ≤ f * tan(FOV / 3) < 4.

[0071] In an exemplary embodiment, the total effective focal length f of the camera lens and the on-axis spacing distance T56 between the fifth lens and the sixth lens may satisfy: 6 < f / T56 < 8. Satisfying 6 < f / T56 < 8 can improve the on-axis chromatic aberration of the camera lens and reduce the risk of color cast. More specifically, f and T56 may further satisfy: 6.5 < f / T56 < 7.5.

[0072] In an exemplary embodiment, the above camera lens may further include an aperture. The aperture may be disposed at an appropriate position as needed. For example, the aperture may be disposed before the first lens. Optionally, the above camera lens may further include a filter for correcting color deviation / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0073] The camera lens according to the above embodiment of the present application may employ multiple lenses, such as the six lenses described above. By reasonably distributing the optical power, surface shape, central thickness of each lens, and the on-axis spacing between each lens, etc., the volume of the camera lens can be effectively reduced and the processability of the camera lens can be improved, making the camera lens more conducive to production and applicable to portable electronic products. The camera lens with the above configuration may have characteristics such as miniaturization, ultra-thinness, large image plane, and good imaging quality.

[0074] In the embodiments of this application, at least one of the mirror surfaces of each lens is an aspherical lens, that is, at least one mirror surface from the object-side surface of the first lens to the image-side surface of the sixth lens is an aspherical lens. The characteristic of an aspherical lens is that its curvature changes continuously from the center to the periphery of the lens. Unlike a spherical lens, which has a constant curvature from the center to the periphery, an aspherical lens has better curvature radius characteristics, which has the advantage of improving distortion aberrations, i.e., improving astigmatism aberrations. By using an aspherical lens, aberrations occurring during imaging can be eliminated as much as possible, thereby improving image quality. Optionally, at least one of the object-side and image-side surfaces of each of the first, second, third, fourth, fifth, and sixth lenses is an aspherical mirror surface. Optionally, both the object-side and image-side surfaces of each of the first, second, third, fourth, fifth, and sixth lenses are aspherical mirror surfaces.

[0075] However, those skilled in the art will understand that the number of lenses constituting the camera lens can be varied to obtain the various results and advantages described herein without departing from the technical solutions claimed in this application. For example, although six lenses are described as an example in the embodiments, the camera lens is not limited to including six lenses. If desired, the camera lens may also include other numbers of lenses.

[0076] The following describes in further detail, with reference to the accompanying drawings, specific embodiments of the camera lens applicable to the above-described embodiments.

[0077] Example 1

[0078] The following is for reference Figures 1 to 2C The camera lens according to Embodiment 1 of this application is described. Figure 1 A schematic diagram of the structure of a camera lens according to Embodiment 1 of this application is shown.

[0079] like Figure 1 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0080] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0081] Table 1 shows the basic parameters of the camera lens of Example 1, where the units for radius of curvature, thickness / distance, and focal length are all millimeters (mm).

[0082]

[0083] Table 1

[0084] In this example, the total effective focal length f of the camera lens is 5.26mm, and the maximum field of view (FOV) of the camera lens is 90.5°.

[0085] In Embodiment 1, the object-side surface and image-side surface of any one of the first lens E1 to the sixth lens E6 are aspherical surfaces, and the surface shape x of each aspherical lens can be defined using, but is not limited to, the following aspherical formula:

[0086]

[0087] Where x is the distance vector from the vertex of the aspherical surface at a height h along the optical axis; c is the paraxial curvature of the aspherical surface, c = 1 / R (i.e., the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; Ai is the i-th order correction coefficient of the aspherical surface. Tables 2 and 3 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28 and A30 that can be used for each aspherical mirror S1-S12 in Example 1.

[0088]

[0089]

[0090] Table 2

[0091] Face number A18 A20 A22 A24 A26 A28 A30 S1 -8.6725E+00 8.6571E+00 -5.8959E+00 2.7153E+00 -8.1055E-01 1.4174E-01 -1.1032E-02 S2 1.1544E+02 -9.4832E+01 5.5663E+01 -2.2710E+01 6.1030E+00 -9.6858E-01 6.8555E-02 S3 -3.4533E+02 3.2183E+02 -2.1527E+02 1.0068E+02 -3.1243E+01 5.7787E+00 -4.8201E-01 S4 -3.4247E+02 3.6642E+02 -2.7565E+02 1.4231E+02 -4.7857E+01 9.4038E+00 -8.1454E-01 S5 1.4365E+01 -2.3965E+01 2.3102E+01 -1.4062E+01 5.3462E+00 -1.1626E+00 1.1061E-01 S6 -3.0047E+01 2.4071E+01 -1.3704E+01 5.4135E+00 -1.4107E+00 2.1804E-01 -1.5135E-02 S7 4.4230E-01 -3.6996E-01 1.8793E-01 -6.2147E-02 1.3149E-02 -1.6236E-03 8.9197E-05 S8 8.4129E-02 -3.6111E-02 1.0351E-02 -1.9736E-03 2.4050E-04 -1.6956E-05 5.2616E-07 S9 -1.2484E-03 2.7393E-04 -4.4852E-05 5.1861E-06 -3.9435E-07 1.7552E-08 -3.4514E-10 S10 -3.4419E-04 4.2260E-05 -3.3112E-06 1.4736E-07 -2.1722E-09 -8.5916E-11 3.0680E-12 S11 2.7948E-06 -3.1006E-07 2.3352E-08 -1.1796E-09 3.8385E-11 -7.2901E-13 6.1505E-15 S12 1.7007E-05 -1.3058E-06 7.2596E-08 -2.8393E-09 7.3988E-11 -1.1520E-12 8.0986E-15

[0092] Table 3

[0093] Figure 2A The on-axis chromatic aberration curve of the camera lens of Embodiment 1 is shown, which represents the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 2B The astigmatism curve of the camera lens of Embodiment 1 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 2C The distortion curve of the camera lens in Embodiment 1 is shown, representing the distortion magnitude corresponding to different image heights. According to... Figures 2A to 2C It can be seen that the camera lens given in Example 1 can achieve good imaging quality.

[0094] Example 2

[0095] The following is for reference Figures 3 to 4C Describes a camera lens according to Embodiment 2 of this application. Figure 3 A schematic diagram of the structure of a camera lens according to Embodiment 2 of this application is shown.

[0096] like Figure 3 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0097] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0098] In this example, the total effective focal length f of the camera lens is 5.18mm, and the maximum field of view (FOV) of the camera lens is 90.2°.

[0099] Table 4 shows the basic parameters of the camera lens in Example 2, where the units for radius of curvature, thickness, and focal length are millimeters (mm). Tables 5 and 6 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror S1-S12 in Example 2. The aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0100]

[0101]

[0102] Table 4

[0103] Face number A4 A6 A8 A10 A12 A14 A16 S1 -2.4337E-03 2.8053E-02 -1.1399E-01 2.2748E-01 9.0685E-02 -1.7731E+00 5.0239E+00 S2 -3.1477E-02 -6.8260E-02 7.9326E-01 -4.5774E+00 1.6994E+01 -4.2857E+01 7.5820E+01 S3 -5.1037E-02 7.8181E-02 -3.5810E-01 1.8411E+00 -6.1353E+00 1.3773E+01 -2.1474E+01 S4 -2.4077E-02 1.5134E-01 -1.3080E+00 8.9497E+00 -4.0281E+01 1.2414E+02 -2.6942E+02 S5 -5.0273E-02 1.3909E-01 -1.2195E+00 6.9473E+00 -2.7102E+01 7.3873E+01 -1.4338E+02 S6 -3.8189E-02 -1.2942E-01 1.0095E+00 -4.6722E+00 1.4092E+01 -2.9263E+01 4.3034E+01 S7 -8.6380E-02 -2.3652E-02 1.3784E-01 -2.4069E-01 1.9049E-01 5.9485E-02 -3.3128E-01 S8 -8.5147E-02 -4.7703E-03 4.9286E-02 -5.8017E-02 2.9734E-02 8.3249E-03 -2.5326E-02 S9 -2.4798E-03 -3.7468E-02 4.9258E-02 -4.8771E-02 3.5761E-02 -1.8900E-02 7.1941E-03 S10 2.7778E-02 -2.9791E-02 3.4121E-02 -2.8349E-02 1.6408E-02 -6.3799E-03 1.6545E-03 S11 -1.5626E-01 6.7135E-02 -1.8170E-02 2.7356E-03 8.3172E-05 -1.4202E-04 3.4655E-05 S12 -1.8181E-01 1.0137E-01 -4.6662E-02 1.6446E-02 -4.3132E-03 8.3492E-04 -1.1933E-04

[0104] Table 5

[0105] Face number A18 A20 A22 A24 A26 A28 A30 S1 -8.0227E+00 8.3309E+00 -5.8343E+00 2.7425E+00 -8.3082E-01 1.4673E-01 -1.1485E-02 S2 -9.5775E+01 8.6804E+01 -5.5989E+01 2.5072E+01 -7.4048E+00 1.2962E+00 -1.0181E-01 S3 2.3483E+01 -1.7873E+01 9.1950E+00 -2.9903E+00 5.2001E-01 -2.1231E-02 -4.3737E-03 S4 4.1807E+02 -4.6570E+02 3.6928E+02 -2.0338E+02 7.3929E+01 -1.5945E+01 1.5451E+00 S5 2.0019E+02 -2.0123E+02 1.4408E+02 -7.1586E+01 2.3421E+01 -4.5319E+00 3.9245E-01 S6 -4.5471E+01 3.4626E+01 -1.8827E+01 7.1254E+00 -1.7825E+00 2.6480E-01 -1.7680E-02 S7 4.0997E-01 -2.9436E-01 1.3805E-01 -4.3080E-02 8.6628E-03 -1.0185E-03 5.3260E-05 S8 1.9939E-02 -8.9803E-03 2.5723E-03 -4.7625E-04 5.5269E-05 -3.6574E-06 1.0528E-07 S9 -1.9944E-03 4.0373E-04 -5.8883E-05 5.9958E-06 -4.0258E-07 1.5959E-08 -2.8223E-10 S10 -2.8555E-04 3.2131E-05 -2.1884E-06 6.7105E-08 1.3935E-09 -1.7497E-10 4.0141E-12 S11 -4.8736E-06 4.5554E-07 -2.9313E-08 1.2903E-09 -3.7241E-11 6.3654E-13 -4.8915E-15 S12 1.2587E-05 -9.7425E-07 5.4509E-08 -2.1408E-09 5.5890E-11 -8.6975E-13 6.0981E-15

[0106] Table 6

[0107] Figure 4A The on-axis chromatic aberration curve of the camera lens of Embodiment 2 is shown, which represents the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 4B The astigmatism curve of the camera lens of Embodiment 2 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 4C The distortion curve of the camera lens in Embodiment 2 is shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 4A to 4C It can be seen that the camera lens given in Example 2 can achieve good imaging quality.

[0108] Example 3

[0109] The following is for reference Figures 5 to 6C The camera lens according to Embodiment 3 of this application is described. Figure 5 A schematic diagram of the structure of a camera lens according to Embodiment 3 of this application is shown.

[0110] like Figure 5 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0111] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0112] In this example, the total effective focal length f of the camera lens is 6.28mm, and the maximum field of view (FOV) of the camera lens is 89.3°.

[0113] Table 7 shows the basic parameters of the camera lens in Example 3, where the units for radius of curvature, thickness, and focal length are millimeters (mm). Tables 8 and 9 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror surface S1-S12 in Example 3. The surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0114]

[0115] Table 7

[0116] Face number A4 A6 A8 A10 A12 A14 A16 S1 8.8977E-04 -4.9764E-03 3.4729E-02 -1.2426E-01 2.7941E-01 -4.2547E-01 4.5603E-01 S2 -1.8526E-02 -9.8631E-03 1.1254E-01 -4.8331E-01 1.3035E+00 -2.3510E+00 2.9400E+00 S3 -2.5630E-02 2.7354E-03 7.2103E-02 -2.9171E-01 7.7988E-01 -1.4429E+00 1.8838E+00 S4 -1.3451E-02 5.4763E-02 -2.9706E-01 1.3252E+00 -3.9784E+00 8.3235E+00 -1.2421E+01 S5 -2.0332E-02 -1.2830E-02 5.7684E-02 -1.6480E-01 2.6311E-01 -2.0563E-01 -4.1164E-02 S6 -2.1857E-02 -2.7838E-02 1.4266E-01 -4.5686E-01 9.6096E-01 -1.3959E+00 1.4349E+00 S7 -4.5652E-02 -1.9880E-02 6.2588E-02 -9.1223E-02 8.7730E-02 -5.7937E-02 2.5639E-02 S8 -4.5903E-02 -9.3364E-03 2.2294E-02 -1.6988E-02 6.3359E-03 2.0643E-04 -1.5496E-03 S9 9.4485E-04 -1.8775E-02 1.5357E-02 -9.2210E-03 4.2171E-03 -1.4373E-03 3.6113E-04 S10 1.9529E-02 -1.6608E-02 1.2594E-02 -7.0845E-03 2.8588E-03 -7.9721E-04 1.5321E-04 S11 -8.1163E-02 2.1036E-02 -2.9834E-03 9.4874E-05 6.5159E-05 -1.6711E-05 2.2234E-06 S12 -9.8822E-02 3.6870E-02 -1.1451E-02 2.7348E-03 -4.8637E-04 6.3814E-05 -6.1783E-06

[0117] Table 8

[0118]

[0119]

[0120] Table 9

[0121] Figure 6A The on-axis chromatic aberration curve of the camera lens of Embodiment 3 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 6B The astigmatism curve of the camera lens of Embodiment 3 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 6C The distortion curve of the camera lens in Embodiment 3 is shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 6A to 6C It can be seen that the camera lens given in Example 3 can achieve good imaging quality.

[0122] Example 4

[0123] The following is for reference Figures 7 to 8C The camera lens according to Embodiment 4 of this application is described. Figure 7 A schematic diagram of the structure of a camera lens according to Embodiment 4 of this application is shown.

[0124] like Figure 7 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0125] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0126] In this example, the total effective focal length f of the camera lens is 5.24mm, and the maximum field of view (FOV) of the camera lens is 90.6°.

[0127] Table 10 shows the basic parameters of the camera lens of Example 4, where the units for radius of curvature, thickness, and focal length are millimeters (mm). Tables 11 and 12 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror S1-S12 in Example 4. The aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0128]

[0129] Table 10

[0130] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.2843E-03 6.6717E-02 -5.0710E-01 2.4768E+00 -8.0114E+00 1.7766E+01 -2.7694E+01 S2 -3.2638E-02 -3.0532E-02 4.1696E-01 -2.3914E+00 8.8619E+00 -2.2391E+01 3.9771E+01 S3 -4.6544E-02 4.6171E-02 -8.7709E-02 4.0987E-01 -1.1155E+00 1.5741E+00 -3.9731E-01 S4 -2.7707E-02 2.7387E-01 -2.7152E+00 1.8899E+01 -8.6581E+01 2.7212E+02 -6.0304E+02 S5 -4.0592E-02 -1.9025E-03 1.4385E-01 -1.1778E+00 4.8829E+00 -1.2810E+01 2.2546E+01 S6 -4.7008E-02 -6.9351E-03 1.3455E-01 -8.2870E-01 2.9772E+00 -7.1244E+00 1.1798E+01 S7 -8.8848E-02 -1.0242E-02 9.2346E-02 -1.6962E-01 1.7095E-01 -5.9609E-02 -9.3069E-02 S8 -8.6118E-02 4.2363E-03 1.2725E-02 1.8259E-02 -7.1749E-02 1.0200E-01 -8.7306E-02 S9 -1.8945E-03 -3.1846E-02 3.3704E-02 -2.8671E-02 1.9356E-02 -9.7756E-03 3.6433E-03 S10 2.8570E-02 -3.1883E-02 3.9429E-02 -3.5398E-02 2.1753E-02 -8.9705E-03 2.5116E-03 S11 -1.7008E-01 8.0477E-02 -2.6928E-02 6.8346E-03 -1.2610E-03 1.6795E-04 -1.6342E-05 S12 -1.9656E-01 1.1337E-01 -5.3217E-02 1.8881E-02 -4.9379E-03 9.4785E-04 -1.3391E-04

[0131] Table 11

[0132] Face number A18 A20 A22 A24 A26 A28 A30 S1 3.0780E+01 -2.4479E+01 1.3811E+01 -5.3924E+00 1.3845E+00 -2.1012E-01 1.4274E-02 S2 -5.0504E+01 4.6055E+01 -2.9907E+01 1.3489E+01 -4.0136E+00 7.0800E-01 -5.6048E-02 S3 -2.7514E+00 5.7048E+00 -5.9595E+00 3.8026E+00 -1.4973E+00 3.3565E-01 -3.2860E-02 S4 9.5629E+02 -1.0889E+03 8.8263E+02 -4.9670E+02 1.8436E+02 -4.0566E+01 4.0066E+00 S5 -2.7200E+01 2.2461E+01 -1.2385E+01 4.2879E+00 -8.0098E-01 4.2794E-02 5.4737E-03 S6 -1.3796E+01 1.1473E+01 -6.7425E+00 2.7361E+00 -7.2907E-01 1.1474E-01 -8.0780E-03 S7 1.6980E-01 -1.4155E-01 7.3411E-02 -2.4915E-02 5.4057E-03 -6.8194E-04 3.8074E-05 S8 4.9692E-02 -1.9327E-02 5.1425E-03 -9.1918E-04 1.0541E-04 -7.0016E-06 2.0464E-07 S9 -1.0177E-03 2.1368E-04 -3.2961E-05 3.5762E-06 -2.5557E-07 1.0726E-08 -1.9949E-10 S10 -4.8594E-04 6.5652E-05 -6.1809E-06 3.9767E-07 -1.6680E-08 4.1128E-10 -4.5249E-12 S11 1.1806E-06 -6.4438E-08 2.7009E-09 -8.7298E-11 2.0982E-12 -3.3246E-14 2.5390E-16 S12 1.3937E-05 -1.0632E-06 5.8583E-08 -2.2648E-09 5.8178E-11 -8.9064E-13 6.1425E-15

[0133] Table 12

[0134] Figure 8A The on-axis chromatic aberration curve of the camera lens of Embodiment 4 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 8B The astigmatism curve of the camera lens of Embodiment 4 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 8C The distortion curve of the camera lens in Example 4 is shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 8A to 8C It can be seen that the camera lens given in Example 4 can achieve good imaging quality.

[0135] Example 5

[0136] The following is for reference Figures 9 to 10C The camera lens according to Embodiment 5 of this application is described. Figure 9 A schematic diagram of the structure of a camera lens according to Embodiment 5 of this application is shown.

[0137] like Figure 9 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0138] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0139] In this example, the total effective focal length f of the camera lens is 5.24mm, and the maximum field of view (FOV) of the camera lens is 90.6°.

[0140] Table 13 shows the basic parameters of the camera lens of Example 5, where the units for radius of curvature, thickness, and focal length are millimeters (mm). Tables 14 and 15 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror S1-S12 in Example 5. The aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0141]

[0142]

[0143] Table 13

[0144] Face number A4 A6 A8 A10 A12 A14 A16 S1 -3.3824E-03 5.5480E-02 -4.2956E-01 2.1463E+00 -7.0747E+00 1.5917E+01 -2.5080E+01 S2 -3.1856E-02 -4.7079E-02 5.8381E-01 -3.3693E+00 1.2507E+01 -3.1541E+01 5.5772E+01 S3 -4.6293E-02 4.0842E-02 -3.8461E-02 1.2851E-01 -4.7627E-02 -1.2533E+00 4.9687E+00 S4 -2.7481E-02 2.6811E-01 -2.6397E+00 1.8271E+01 -8.3201E+01 2.5990E+02 -5.7249E+02 S5 -4.0071E-02 -5.8310E-03 1.6167E-01 -1.2138E+00 4.8325E+00 -1.2273E+01 2.0889E+01 S6 -4.7365E-02 -4.5414E-03 1.3951E-01 -9.2727E-01 3.4436E+00 -8.3643E+00 1.3940E+01 S7 -9.1296E-02 3.4591E-03 4.2621E-02 -4.2647E-02 -5.9942E-02 2.4197E-01 -3.7882E-01 S8 -8.9492E-02 1.5590E-02 -1.3819E-02 6.2301E-02 -1.2382E-01 1.4629E-01 -1.1472E-01 S9 -4.4870E-03 -2.7690E-02 2.8754E-02 -2.4434E-02 1.6781E-02 -8.6550E-03 3.2896E-03 S10 2.7135E-02 -2.9514E-02 3.6740E-02 -3.3431E-02 2.0778E-02 -8.6255E-03 2.4217E-03 S11 -1.6632E-01 7.9447E-02 -2.7918E-02 7.8010E-03 -1.6663E-03 2.7224E-04 -3.4506E-05 S12 -1.9211E-01 1.1093E-01 -5.2304E-02 1.8631E-02 -4.8875E-03 9.4068E-04 -1.3323E-04

[0145] Table 14

[0146] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.8097E+01 -2.2476E+01 1.2735E+01 -4.9881E+00 1.2837E+00 -1.9515E-01 1.3274E-02 S2 -7.0374E+01 6.3675E+01 -4.0980E+01 1.8302E+01 -5.3886E+00 9.4014E-01 -7.3583E-02 S3 -1.0136E+01 1.3070E+01 -1.1217E+01 6.4146E+00 -2.3535E+00 5.0178E-01 -4.7295E-02 S4 9.0257E+02 -1.0220E+03 8.2401E+02 -4.6141E+02 1.7046E+02 -3.7348E+01 3.6743E+00 S5 -2.4188E+01 1.8852E+01 -9.4523E+00 2.6851E+00 -2.3644E-01 -7.2966E-02 1.5971E-02 S6 -1.6332E+01 1.3574E+01 -7.9598E+00 3.2194E+00 -8.5435E-01 1.3383E-01 -9.3748E-03 S7 3.6721E-01 -2.4068E-01 1.0911E-01 -3.3876E-02 6.8903E-03 -8.2754E-04 4.4461E-05 S8 6.2134E-02 -2.3462E-02 6.1364E-03 -1.0871E-03 1.2428E-04 -8.2665E-06 2.4285E-07 S9 -9.3610E-04 1.9993E-04 -3.1288E-05 3.4331E-06 -2.4741E-07 1.0447E-08 -1.9518E-10 S10 -4.6851E-04 6.3155E-05 -5.9215E-06 3.7881E-07 -1.5775E-08 3.8573E-10 -4.2040E-12 S11 3.4097E-06 -2.5996E-07 1.4914E-08 -6.1852E-10 1.7399E-11 -2.9568E-13 2.2834E-15 S12 1.3900E-05 -1.0628E-06 5.8696E-08 -2.2741E-09 5.8544E-11 -8.9808E-13 6.2060E-15

[0147] Table 15

[0148] Figure 10AThe on-axis chromatic aberration curve of the camera lens of Embodiment 5 is shown, which represents the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 10B The astigmatism curve of the camera lens of Embodiment 5 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 10C The distortion curve of the camera lens in Embodiment 5 is shown, representing the distortion magnitude corresponding to different image heights. According to... Figures 10A to 10C It can be seen that the camera lens given in Example 5 can achieve good imaging quality.

[0149] Example 6

[0150] The following is for reference Figures 11 to 12C The camera lens according to Embodiment 6 of this application is described. Figure 11 A schematic diagram of the structure of a camera lens according to Embodiment 6 of this application is shown.

[0151] like Figure 11 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0152] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0153] In this example, the total effective focal length f of the camera lens is 5.18mm, and the maximum field of view (FOV) of the camera lens is 90.2°.

[0154] Table 16 shows the basic parameters of the camera lens of Example 6, where the units for radius of curvature, thickness, and focal length are millimeters (mm). Tables 17 and 18 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror S1-S12 in Example 6. The aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0155]

[0156] Table 16

[0157] Face number A4 A6 A8 A10 A12 A14 A16 S1 -3.3765E-03 3.9911E-02 -1.9875E-01 6.0896E-01 -1.0514E+00 5.8409E-01 1.5920E+00 S2 -3.1158E-02 -6.8671E-02 7.7896E-01 -4.4267E+00 1.6274E+01 -4.0794E+01 7.1925E+01 S3 -5.1029E-02 7.6682E-02 -3.2375E-01 1.5312E+00 -4.6269E+00 9.1660E+00 -1.2027E+01 S4 -2.3493E-02 1.4730E-01 -1.3037E+00 9.1085E+00 -4.1654E+01 1.2995E+02 -2.8464E+02 S5 -5.2975E-02 1.8308E-01 -1.6099E+00 9.1469E+00 -3.5452E+01 9.5977E+01 -1.8505E+02 S6 -3.7901E-02 -1.3612E-01 1.0567E+00 -4.8669E+00 1.4605E+01 -3.0171E+01 4.4138E+01 S7 -8.9106E-02 -8.5275E-03 6.7285E-02 -2.3867E-02 -2.5880E-01 7.0532E-01 -9.8955E-01 S8 -8.7435E-02 8.6433E-04 3.6352E-02 -3.5474E-02 7.8871E-04 3.5120E-02 -4.3069E-02 S9 -3.9400E-03 -3.5563E-02 4.8064E-02 -4.8553E-02 3.6027E-02 -1.9175E-02 7.3318E-03 S10 2.7127E-02 -3.1494E-02 3.9265E-02 -3.4370E-02 2.0570E-02 -8.2891E-03 2.2635E-03 S11 -1.5688E-01 6.7216E-02 -1.7485E-02 2.1380E-03 3.1942E-04 -1.9688E-04 4.2875E-05 S12 -1.8243E-01 1.0252E-01 -4.7611E-02 1.6921E-02 -4.4694E-03 8.7036E-04 -1.2503E-04

[0158] Table 17

[0159] Face number A18 A20 A22 A24 A26 A28 A30 S1 -4.4531E+00 5.6722E+00 -4.4297E+00 2.2295E+00 -7.0792E-01 1.2939E-01 -1.0396E-02 S2 -9.0705E+01 8.2173E+01 -5.3022E+01 2.3766E+01 -7.0277E+00 1.2320E+00 -9.6921E-02 S3 1.0038E+01 -4.4189E+00 -2.3923E-01 1.5467E+00 -9.0461E-01 2.4168E-01 -2.5989E-02 S4 4.4477E+02 -4.9793E+02 3.9618E+02 -2.1865E+02 7.9546E+01 -1.7153E+01 1.6604E+00 S5 2.5671E+02 -2.5642E+02 1.8247E+02 -9.0101E+01 2.9301E+01 -5.6365E+00 4.8533E-01 S6 -4.6404E+01 3.5167E+01 -1.9035E+01 7.1744E+00 -1.7879E+00 2.6469E-01 -1.7617E-02 S7 8.9197E-01 -5.4865E-01 2.3384E-01 -6.8206E-02 1.3020E-02 -1.4673E-03 7.4035E-05 S8 2.8335E-02 -1.1812E-02 3.2464E-03 -5.8680E-04 6.7151E-05 -4.4112E-06 1.2668E-07 S9 -2.0385E-03 4.1330E-04 -6.0313E-05 6.1404E-06 -4.1204E-07 1.6321E-08 -2.8837E-10 S10 -4.2347E-04 5.4449E-05 -4.7524E-06 2.7145E-07 -9.3553E-09 1.6076E-10 -7.0315E-13 S11 -5.6986E-06 5.1114E-07 -3.1741E-08 1.3515E-09 -3.7777E-11 6.2565E-13 -4.6599E-15 S12 1.3250E-05 -1.0300E-06 5.7879E-08 -2.2832E-09 5.9875E-11 -9.3609E-13 6.5949E-15

[0160] Table 18

[0161] Figure 12A The on-axis chromatic aberration curve of the camera lens of Embodiment 6 is shown, which represents the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 12B The astigmatism curve of the camera lens of Embodiment 6 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 12C The distortion curve of the camera lens in Embodiment 6 is shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 12A to 12C It can be seen that the camera lens given in Example 6 can achieve good imaging quality.

[0162] Example 7

[0163] The following is for reference Figures 13 to 14C The camera lens according to Embodiment 7 of this application is described. Figure 13 A schematic diagram of the structure of a camera lens according to Embodiment 7 of this application is shown.

[0164] like Figure 13 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0165] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0166] In this example, the total effective focal length f of the camera lens is 6.46mm, and the maximum field of view (FOV) of the camera lens is 87.6°.

[0167] Table 19 shows the basic parameters of the camera lens of Example 7, where the units for radius of curvature, thickness, and focal length are millimeters (mm). Tables 20 and 21 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror S1-S12 in Example 7. The aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0168]

[0169]

[0170] Table 19

[0171] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.1778E-03 -1.7395E-02 1.0252E-01 -3.5301E-01 7.8682E-01 -1.1992E+00 1.2909E+00 S2 -1.9683E-02 6.8653E-03 1.4289E-02 -1.2205E-01 4.1624E-01 -8.4546E-01 1.1374E+00 S3 -2.3259E-02 -1.8078E-02 1.9519E-01 -7.3860E-01 1.8291E+00 -3.1152E+00 3.7492E+00 S4 -1.8782E-02 1.3642E-01 -9.2627E-01 4.2593E+00 -1.2924E+01 2.6982E+01 -3.9811E+01 S5 -1.3800E-02 -7.9748E-02 4.2778E-01 -1.4486E+00 3.2379E+00 -4.9947E+00 5.4432E+00 S6 -2.2935E-02 -2.4859E-02 1.3081E-01 -4.3998E-01 9.7204E-01 -1.4723E+00 1.5647E+00 S7 -3.8411E-02 -5.0721E-02 1.3790E-01 -2.1659E-01 2.3616E-01 -1.8514E-01 1.0536E-01 S8 -3.8735E-02 -2.7981E-02 4.9055E-02 -4.3097E-02 2.4673E-02 -9.2430E-03 2.0594E-03 S9 8.4506E-03 -2.7375E-02 2.1336E-02 -1.2243E-02 5.3600E-03 -1.7655E-03 4.3325E-04 S10 2.5777E-02 -2.0439E-02 1.4057E-02 -7.5208E-03 2.9943E-03 -8.4364E-04 1.6635E-04 S11 -8.1667E-02 2.3461E-02 -4.1985E-03 4.5019E-04 -7.2363E-06 -5.8985E-06 1.0268E-06 S12 -1.0663E-01 4.2574E-02 -1.3891E-02 3.4294E-03 -6.2366E-04 8.3124E-05 -8.1436E-06

[0172] Table 20

[0173] Face number A18 A20 A22 A24 A26 A28 A30 S1 -9.9840E-01 5.5716E-01 -2.2240E-01 6.1913E-02 -1.1413E-02 1.2515E-03 -6.1775E-05 S2 -1.0616E+00 7.0028E-01 -3.2604E-01 1.0492E-01 -2.2214E-02 2.7835E-03 -1.5632E-04 S3 -3.2396E+00 2.0185E+00 -8.9964E-01 2.7985E-01 -5.7724E-02 7.0964E-03 -3.9357E-04 S4 4.2105E+01 -3.2019E+01 1.7350E+01 -6.5322E+00 1.6232E+00 -2.3929E-01 1.5843E-02 S5 -4.2353E+00 2.3500E+00 -9.1685E-01 2.4372E-01 -4.1564E-02 4.0325E-03 -1.6450E-04 S6 -1.1833E+00 6.3934E-01 -2.4488E-01 6.4898E-02 -1.1313E-02 1.1664E-03 -5.3869E-05 S7 -4.3511E-02 1.2921E-02 -2.6949E-03 3.7693E-04 -3.2346E-05 1.4002E-06 -1.5722E-08 S8 -1.4769E-04 -5.8068E-05 2.1021E-05 -3.3393E-06 2.9780E-07 -1.4431E-08 2.9632E-10 S9 -7.9283E-05 1.0770E-05 -1.0658E-06 7.4154E-08 -3.4154E-09 9.3061E-11 -1.1321E-12 S10 -2.3119E-05 2.2789E-06 -1.5873E-07 7.6547E-09 -2.4366E-10 4.6131E-12 -3.9389E-14 S11 -9.5045E-08 5.7254E-09 -2.3526E-10 6.5784E-12 -1.2017E-13 1.2958E-15 -6.2629E-18 S12 5.8731E-07 -3.1039E-08 1.1852E-09 -3.1771E-11 5.6639E-13 -6.0225E-15 2.8875E-17

[0174] Table 21

[0175] Figure 14A The on-axis chromatic aberration curve of the camera lens of Embodiment 7 is shown, which represents the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 14B The astigmatism curve of the camera lens of Embodiment 7 is shown, which represents the meridional image plane curvature and the sagittal image plane curvature. Figure 14C The distortion curve of the camera lens in Embodiment 7 is shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 14A to 14C It can be seen that the camera lens given in Example 7 can achieve good imaging quality.

[0176] Example 8

[0177] The following is for reference Figures 15 to 16C The camera lens according to Embodiment 8 of this application is described. Figure 15 A schematic diagram of the structure of a camera lens according to Embodiment 8 of this application is shown.

[0178] like Figure 15 As shown, the camera lens, from the object side to the image side, includes, in sequence: aperture STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, filter E7, and imaging surface S15.

[0179] 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 convex. 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 convex and its image-side surface S10 being convex. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave 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 sequentially through surfaces S1 to S14 and is finally imaged onto the imaging surface S15.

[0180] In this example, the total effective focal length f of the camera lens is 6.40mm, and the maximum field of view (FOV) of the camera lens is 88.1°.

[0181] Table 22 shows the basic parameters of the camera lens of Example 8, where the units for radius of curvature, thickness, and focal length are millimeters (mm). Tables 23 and 24 give the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for each aspherical mirror S1-S12 in Example 8. The aspherical surface shape can be defined by formula (1) given in Example 1 above.

[0182]

[0183] Table 22

[0184] Face number A4 A6 A8 A10 A12 A14 A16 S1 3.0567E-03 -2.5432E-02 1.4596E-01 -5.0050E-01 1.1182E+00 -1.7111E+00 1.8491E+00 S2 -2.1980E-02 2.8833E-02 -1.2005E-01 3.7816E-01 -7.9499E-01 1.1557E+00 -1.1864E+00 S3 -2.4473E-02 -1.2331E-02 1.5041E-01 -5.3424E-01 1.2451E+00 -2.0042E+00 2.2884E+00 S4 -1.6501E-02 9.1643E-02 -5.4659E-01 2.3654E+00 -6.8566E+00 1.3826E+01 -1.9869E+01 S5 -1.4297E-02 -8.0073E-02 4.2348E-01 -1.4261E+00 3.1762E+00 -4.8877E+00 5.3188E+00 S6 -2.6390E-02 -1.2497E-02 8.4731E-02 -3.1810E-01 7.4182E-01 -1.1605E+00 1.2597E+00 S7 -4.8284E-02 -2.1012E-02 5.6339E-02 -5.3146E-02 8.6085E-03 3.6072E-02 -4.7190E-02 S8 -5.0322E-02 -1.3481E-02 3.1490E-02 -2.3814E-02 7.1410E-03 2.7891E-03 -3.9142E-03 S9 1.7931E-03 -2.6781E-02 2.6463E-02 -1.8297E-02 8.9434E-03 -3.1124E-03 7.8218E-04 S10 2.3650E-02 -2.2697E-02 1.9713E-02 -1.2039E-02 4.9808E-03 -1.4057E-03 2.7578E-04 S11 -8.7998E-02 3.6008E-02 -1.0561E-02 2.2514E-03 -3.3472E-04 3.4829E-05 -2.5561E-06 S12 -1.1224E-01 5.0681E-02 -1.7879E-02 4.5981E-03 -8.5335E-04 1.1495E-04 -1.1333E-05

[0185] Table 23

[0186]

[0187]

[0188] Table 24

[0189] Figure 16A The on-axis chromatic aberration curve of the camera lens of Embodiment 8 is shown, which represents the deviation of the focal point of light of different wavelengths after passing through the lens. Figure 16B The astigmatism curve of the camera lens of Embodiment 8 is shown, which represents the curvature of the meridional image plane and the curvature of the sagittal image plane. Figure 16C The distortion curve of the camera lens in Embodiment 8 is shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 16A to 16C It can be seen that the camera lens given in Example 8 can achieve good imaging quality.

[0190] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 25.

[0191] Conditional / Example 1 2 3 4 5 6 7 8 ImgH^2 / (TTL*f) 0.90 0.86 0.83 0.88 0.88 0.86 0.81 0.83 f*tan(FOV / 3) 3.06 3.00 3.60 3.05 3.05 3.00 3.61 3.61 f3 / f2-f3 / f4 -0.83 -0.59 -0.57 -0.66 -0.65 -0.61 -0.57 -0.65 f4 / f3 -1.06 -1.11 -1.10 -1.14 -1.13 -1.11 -1.05 -0.98 f1 / f5 1.09 1.10 1.10 1.07 1.07 1.10 1.07 1.09 f / f6 -1.71 -1.59 -1.59 -1.60 -1.59 -1.59 -1.70 -1.75 f / (R3-R4) 0.75 0.74 0.85 0.71 0.71 0.78 0.94 1.11 R3 / R6 -0.60 -0.88 -0.76 -0.87 -0.84 -0.84 -0.73 -0.60 f / R7 0.07 0.09 0.09 0.08 0.09 0.11 0.07 0.16 f / R11 -0.01 -0.20 -0.22 -0.10 -0.13 -0.20 -0.35 -0.66 R8 / R9 1.19 1.05 1.12 1.09 1.09 1.01 1.16 1.32 (R9-R10) / (R9+R10) 1.80 1.77 1.93 1.78 1.81 1.78 1.97 2.78 f / T56 7.08 6.84 6.81 6.91 6.91 6.83 7.00 6.94

[0192] Table 25

[0193] This application also provides a camera device, whose electronic photosensitive element can be a photocoupled device (CCD) or a complementary metal oxide semiconductor device (CMOS). The imaging device can be a stand-alone camera device such as a digital camera, or a camera module integrated into a mobile electronic device such as a mobile phone. The camera device is equipped with the camera lens described above.

[0194] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A camera lens, characterized in that, Along the optical axis from the object side to the image side, the following are included in sequence: A first lens with positive optical power; A second lens with negative optical power; A third lens with positive optical power; A fourth lens with negative optical power; A fifth lens with positive optical power; A sixth lens with negative optical power; in, The number of lenses with optical power in the camera lens is six; The object-side surfaces of the first lens, the second lens, and the fourth lens are all convex, and the image-side surfaces are all concave. The object-side surface and the image-side surface of the third lens and the fifth lens are both convex surfaces; Both the object-side and image-side surfaces of the sixth lens are concave. The total effective focal length f of the camera lens and the maximum field of view (FOV) of the camera lens satisfy: 3 ≤ f tan(FOV / 3)≤3.61; and The effective radius R3 of the object side of the second lens and the effective radius R6 of the image side of the third lens satisfy: -0.88≤R3 / R6≤-0.60; The effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy: 1.05 ≤ f1 / f5 < 1.15; The radius of curvature R9 of the object side of the fifth lens and the radius of curvature R10 of the image side of the fifth lens satisfy: 1.77≤(R9-R10) / (R9+R10)≤2.

78.

2. The camera lens according to claim 1, characterized in that, The following conditions must be met: 1 mgH (half the diagonal length of the effective pixel area on the imaging surface of the camera lens), 2 TTL (the distance from the object side of the first lens to the imaging surface of the camera lens on the optical axis), and 3 ≤ 1 mgH^2 / (TTL). f)≤0.

90.

3. The camera lens according to claim 1, characterized in that, The effective focal length f2 of the second lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens satisfy: -0.83≤f3 / f2-f3 / f4≤-0.

57.

4. The camera lens according to claim 1, characterized in that, The effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: -1.16 <f4 / f3<-0.95。 5. The camera lens according to claim 1, characterized in that, The effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy the condition: 1.05≤f1 / f5≤1.

10.

6. The camera lens according to claim 1, characterized in that, The total effective focal length f of the camera lens and the effective focal length f6 of the sixth lens satisfy the condition: -1.75≤f / f6<-1.

55.

7. The camera lens according to claim 1, characterized in that, The total effective focal length f of the camera lens, the radius of curvature R3 of the object-side surface of the second lens, and the radius of curvature R4 of the image-side surface of the second lens satisfy: 0.7 <f / (R3-R4)<1.15。 8. The camera lens according to claim 1, characterized in that, The total effective focal length f of the camera lens and the radius of curvature R7 of the object-side surface of the fourth lens satisfy: 0.05 <f / R7<0.2。 9. The camera lens according to claim 1, characterized in that, The total effective focal length f of the camera lens and the radius of curvature R11 of the object side surface of the sixth lens satisfy the following condition: -0.66≤f / R11<0.

10. The camera lens according to claim 1, characterized in that, The radius of curvature R8 of the image side of the fourth lens and the radius of curvature R9 of the object side of the fifth lens satisfy: 1.0≤R8 / R9≤1.

32.

11. The camera lens according to any one of claims 1 to 10, characterized in that, The total effective focal length f of the camera lens and the distance T56 between the fifth lens and the sixth lens on the optical axis satisfy: 6.81≤f / T56≤7.

08.

12. An electronic device, characterized in that, It includes a camera lens according to any one of claims 1-11 and an imaging element for converting the optical pattern formed by the camera lens into an electrical signal.

Images