Camera lens

Abstract

The present invention provides a camera lens. The camera lens sequentially includes, from the object side to the image side along the optical axis: a first lens having a negative optical power; a second lens having a positive optical power; a third lens having a positive optical power; a fourth lens having a positive optical power; a fifth lens having a negative optical power; a sixth lens having a positive optical power; wherein, the relationship between the maximum semi-field angle Semi-FOV of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfies: 6.0 < ImgH * tan(Semi-FOV) < 10.0. The present invention solves the problem that it is difficult to simultaneously achieve both ultra-wide angle and small distortion in the camera lens in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of optical imaging equipment, and in particular to a camera lens. Background Art

[0002] With the development of society and the advancement of technology, more and more smart products are entering people's lives. As smart terminals gradually become popular, people's requirements for mobile phone camera functions are getting higher and higher. As the main way to realize mobile phone camera functions, the performance of the camera lens itself plays a decisive role.

[0003] The prior art provides a camera lens, typically used in the rear camera of a mobile phone. This lens typically features an ultra-wide angle to accommodate wide-field-of-view capture. Due to the significant distortion of ultra-wide-angle lenses, images are noticeably distorted and stretched, resulting in an image with disproportionate proportions. This distortion requires post-processing software algorithms to correct for this distortion, which increases the complexity of these algorithms.

[0004] In other words, the camera lens in the prior art has the problem that it is difficult to take into account both ultra-wide angle and small distortion at the same time. Summary of the Invention

[0005] The main purpose of the present invention is to provide a camera lens to solve the problem in the prior art that it is difficult to achieve both ultra-wide angle and small distortion at the same time.

[0006] To achieve the above-mentioned object, according to one aspect of the present invention, there is provided a camera lens, which comprises, in order from the object side to the image side along the optical axis: a first lens, the first lens having negative focal power; a second lens, the second lens having positive focal power; a third lens, the third lens having positive focal power; a fourth lens, the fourth lens having positive focal power; a fifth lens, the fifth lens having negative focal power; and a sixth lens, the sixth lens having positive focal power; wherein the maximum half-field-of-view (Semi-FOV) of the camera lens and half the diagonal length ImgH of the effective pixel area on the imaging surface satisfy the following relationship: 6.0 <ImgH*tan(Semi-FOV)<10.0。

[0007] Furthermore, the effective focal length f of the camera lens and half the diagonal length ImgH of the effective pixel area on the imaging plane satisfy the following relationship: 1.5≤ImgH / f<2.5.

[0008] Furthermore, the effective focal length f of the camera lens, the center thickness CT1 of the first lens and the center thickness CT2 of the second lens satisfy the following relationship: 5.0 <f / (CT2-CT1)<10。

[0009] Furthermore, a center thickness CT5 of the fifth lens and a center thickness CT6 of the sixth lens satisfy the relationship: 2.5<(CT6+CT5) / (CT6-CT5)<3.5.

[0010] Furthermore, the center thickness CT3 of the third lens, the center thickness CT4 of the fourth lens, and the center thickness CT6 of the sixth lens satisfy the following relationship: 1.0<(CT3+CT4) / CT6≤1.5.

[0011] Furthermore, the effective focal length f of the camera lens, the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy: 1.0 <f / (CT3+CT4)≤1.6。

[0012] Furthermore, the air gap T12 on the optical axis between the first lens and the second lens, the air gap T23 on the optical axis between the second lens and the third lens, the air gap T34 on the optical axis between the third lens and the fourth lens, and the air gap T45 on the optical axis between the fourth lens and the fifth lens satisfy the following relationship: 2.0<(T12+T23) / (T34+T45)<3.0.

[0013] Furthermore, the effective focal length f of the camera lens and the effective focal length f6 of the sixth lens satisfy: 1.0 <f6 / f<2.0。

[0014] Furthermore, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy the following relationship: 1.9<(|f2|+|f3|) / (|f4|+|f5|)<3.0.

[0015] Furthermore, the effective focal length f of the camera lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy the following relationship: -1.0<10*(f / f4+f / f5)<0.

[0016] Furthermore, the effective focal length f of the camera lens, the effective focal length f2 of the second lens, and the effective focal length f3 of the third lens satisfy the following relationship: 10*|f / f2-f / f3|≤0.6.

[0017] Furthermore, the effective focal length f of the camera lens and the average value AVE(f) of the absolute values ​​of the effective focal lengths of the first to sixth lenses satisfy the following relationship: 1.0 <AVE(f) / f<1.7。

[0018] Furthermore, the effective focal length f6 of the sixth lens and the average value AVE(f) of the absolute values ​​of the effective focal lengths of the first lens to the sixth lens satisfy the following relationship: 0.8 <f6 / AVE(f)<1.5。

[0019] Further, the effective focal length f of the camera lens and the curvature C1 of the object side surface of the first lens satisfy: -11.0 < f / C1 < -6.0.

[0020] Further, the curvature radius R1 of the object side surface of the first lens and the curvature radius R2 of the image side surface of the first lens satisfy: 2.0 < (R1 - R2) / (R1 + R2) < 2.5.

[0021] Further, the effective focal length f of the camera lens, the curvature radius R7 of the object side surface of the fourth lens and the curvature radius R8 of the image side surface of the fourth lens satisfy: 0.5 < f / (R7 + R8) < 1.2.

[0022] Further, the curvature radius R10 of the image side surface of the fifth lens and the curvature radius R1 of the object side surface of the sixth lens satisfy: -2.0 < R10 / R11 < -1.3.

[0023] Further, the effective focal length f of the camera lens, the curvature radius R9 of the object side surface of the fifth lens and the curvature radius R12 of the image side surface of the sixth lens satisfy: -3.0 < f / R9 + f / R12 < -2.0.

[0024] Further, the optical distortion ODT of the camera lens at a 0.8 field of view satisfies: |ODT 0.8 | < 5%.

[0025] According to another aspect of the present invention, there is provided a camera lens, which sequentially includes, from the object side to the image side along the optical axis: a first lens having a negative optical power; a second lens having a positive optical power; a third lens having a positive optical power; a fourth lens having a positive optical power; a fifth lens having a negative optical power; a sixth lens having a positive optical power; wherein, the central thickness CT3 of the third lens, the central thickness CT4 of the fourth lens and the central thickness CT6 of the sixth lens satisfy: 1.0 < (CT3 + CT4) / CT6 ≤ 1.5.

[0026] Further, the maximum semi-field angle Semi-FOV of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: 6.0 < ImgH * tan(Semi-FOV) < 10.0; the effective focal length f of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfy: 1.5 ≤ ImgH / f < 2.5.

[0027] Further, the effective focal length f of the camera lens, the central thickness CT1 of the first lens and the central thickness CT2 of the second lens satisfy: 5.0 < f / (CT2 - CT1) < 10.

[0028] Furthermore, a center thickness CT5 of the fifth lens and a center thickness CT6 of the sixth lens satisfy the relationship: 2.5<(CT6+CT5) / (CT6-CT5)<3.5.

[0029] Furthermore, the effective focal length f of the camera lens, the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy: 1.0 <f / (CT3+CT4)≤1.6。

[0030] Furthermore, the air gap T12 on the optical axis between the first lens and the second lens, the air gap T23 on the optical axis between the second lens and the third lens, the air gap T34 on the optical axis between the third lens and the fourth lens, and the air gap T45 on the optical axis between the fourth lens and the fifth lens satisfy the following relationship: 2.0<(T12+T23) / (T34+T45)<3.0.

[0031] Furthermore, the effective focal length f of the camera lens and the effective focal length f6 of the sixth lens satisfy: 1.0 <f6 / f<2.0。

[0032] Furthermore, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy the following relationship: 1.9<(|f2|+|f3|) / (|f4|+|f5|)<3.0.

[0033] Furthermore, the effective focal length f of the camera lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy the following relationship: -1.0<10*(f / f4+f / f5)<0.

[0034] Furthermore, the effective focal length f of the camera lens, the effective focal length f2 of the second lens, and the effective focal length f3 of the third lens satisfy the following relationship: 10*|f / f2-f / f3|≤0.6.

[0035] Furthermore, the effective focal length f of the camera lens and the average value AVE(f) of the absolute values ​​of the effective focal lengths of the first to sixth lenses satisfy the following relationship: 1.0 <AVE(f) / f<1.7。

[0036] Furthermore, the effective focal length f6 of the sixth lens and the average value AVE(f) of the absolute values ​​of the effective focal lengths of the first lens to the sixth lens satisfy the following relationship: 0.8 <f6 / AVE(f)<1.5。

[0037] Furthermore, the effective focal length f of the camera lens and the curvature C1 of the object side surface of the first lens satisfy: -11.0 <f / C1<-6.0。

[0038] Furthermore, a curvature radius R1 of the object-side surface of the first lens and a curvature radius R2 of the image-side surface of the first lens satisfy the following relationship: 2.0<(R1-R2) / (R1+R2)<2.5.

[0039] Furthermore, the effective focal length f of the camera lens, the curvature radius R7 of the object side surface of the fourth lens, and the curvature radius R8 of the image side surface of the fourth lens satisfy the following relationship: 0.5 <f / (R7+R8)<1.2。

[0040] Furthermore, the curvature radius R10 of the image side surface of the fifth lens and the curvature radius R11 of the object side surface of the sixth lens satisfy: -2.0 <R10 / R11<-1.3。

[0041] Furthermore, the effective focal length f of the camera lens, the curvature radius R9 of the object side surface of the fifth lens, and the curvature radius R12 of the image side surface of the sixth lens satisfy the following relationship: -3.0 <f / R9+f / R12<-2.0。

[0042] Furthermore, the optical distortion ODT of the camera lens at 0.8 field of view is 0.8 Meets: |ODT 0.8 |<5%.

[0043] Applying the technical solution of the present invention, the camera lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from the object side to the image side along the optical axis, the first lens has a negative focal power; the second lens has a positive focal power; the third lens has a positive focal power; the fourth lens has a positive focal power; the fifth lens has a negative focal power; and the sixth lens has a positive focal power; wherein the maximum half field of view angle Semi-FOV of the camera lens and half the diagonal length ImgH of the effective pixel area on the imaging surface satisfy the following: 6.0 <ImgH*tan(Semi-FOV)<10.0。

[0044] By reasonably allocating the optical power of each lens, it is beneficial to improve temperature drift, and at the same time it is beneficial to balance the aberrations produced by the camera lens, greatly improving the imaging quality of the camera lens. By constraining the relationship between the maximum half-field angle Semi-FOV of the camera lens and half the diagonal length of the effective pixel area on the imaging surface ImgH within a reasonable range, the field angle of the camera lens can be reasonably constrained, ensuring a wide shooting range while maintaining a large image surface area, which is beneficial to improving the imaging quality. In addition, the camera lens of the present application can meet the requirements of a large field angle while meeting small distortion, and can take into account the performance of ultra-wide angle and small distortion, while ensuring high pixels and having good imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0046] Figure 1 A schematic structural diagram of a camera lens according to Example 1 of the present invention is shown;

[0047] Figures 2 to 3 Shown respectively Figure 1 Astigmatism curve and distortion curve of the camera lens in;

[0048] Figure 4 A schematic structural diagram of a camera lens according to Example 2 of the present invention is shown;

[0049] Figures 5 and 6 Shown respectively Figure 4 Astigmatism curve and distortion curve of the camera lens in;

[0050] Figure 7 A schematic structural diagram of a camera lens according to Example 3 of the present invention is shown;

[0051] Figures 8 and 9 Shown respectively Figure 7 Astigmatism curve and distortion curve of the camera lens in;

[0052] Figure 10 Schematic diagram showing the structure of a camera lens according to Example 4 of the present invention;

[0053] Figures 11 to 12 Shown respectively Figure 10 Astigmatism curve and distortion curve of the camera lens in;

[0054] Figure 13 A schematic structural diagram of a camera lens according to Example 5 of the present invention is shown;

[0055] Figures 14 and 15 Shown respectively Figure 13 Astigmatism curve and distortion curve of the camera lens in;

[0056] Figure 16 1. A schematic structural diagram of a camera lens according to Example 6 of the present invention is shown;

[0057] Figures 17 and 18 Shown respectively Figure 16 Astigmatism curve and distortion curve of the camera lens in;

[0058] Figure 19 1. A schematic structural diagram of a camera lens according to Example 7 of the present invention is shown;

[0059] Figures 20 to 21 Shown respectively Figure 19Astigmatism curve and distortion curve of the camera lens in;

[0060] Figure 22 1. A schematic structural diagram of a camera lens according to Example 8 of the present invention is shown;

[0061] Figures 23 to 24 Shown respectively Figure 22 The astigmatism curve and distortion curve of the camera lens in.

[0062] The above drawings include the following reference numerals:

[0063] STO, aperture; E1, first lens; S1, object-side surface of the first lens; S2, image-side surface of the first lens; E2, second lens; S3, object-side surface of the second lens; S4, image-side surface of the second lens; E3, third lens; S5, object-side surface of the third lens; S6, image-side surface of the third lens; E4, fourth lens; S7, object-side surface of the fourth lens; S8, image-side surface of the fourth lens; E5, fifth lens; S9, object-side surface of the fifth lens; S10, image-side surface of the fifth lens; E6, sixth lens;

[0064] S11, object-side surface of the sixth lens; S12, image-side surface of the sixth lens; E7, filter; S13, object-side surface of the filter; S14, image-side surface of the filter; S15, imaging surface. DETAILED DESCRIPTION

[0065] 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 invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0066] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0067] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0068] 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.

[0069] 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.

[0070] In this article, the paraxial area refers to the area near the optical axis. If the lens surface is convex and the convex surface position is not defined, it means that the lens surface is convex at least in the paraxial area; if the lens surface is concave and the concave surface position is not defined, it means that the lens surface is concave at least in the paraxial area. The surface of each lens close to the object side is called the object side surface of the lens, and the surface of each lens close to the image side is called the image side surface of the lens. The judgment of the surface shape in the paraxial area can be based on the judgment method of common knowledge in this field, and the positive and negative R value (R refers to the curvature radius of the paraxial area, usually refers to the R value on the lens database (lens data) in the optical software) is used to judge the convexity. In terms of the object side, when the R value is positive, it is judged to be convex, and when the R value is negative, it is judged to be concave; in terms of the image side, when the R value is positive, it is judged to be concave, and when the R value is negative, it is judged to be convex.

[0071] In order to solve the problem in the prior art that it is difficult to simultaneously achieve both an ultra-wide angle and small distortion in a camera lens, the present invention provides a camera lens.

[0072] Example 1

[0073] like Figures 1 to 24 As shown, the camera lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens along the optical axis from the object side to the image side, wherein the first lens has a negative focal power; the second lens has a positive focal power; the third lens has a positive focal power; the fourth lens has a positive focal power; the fifth lens has a negative focal power; and the sixth lens has a positive focal power; wherein the maximum half field of view angle Semi-FOV of the camera lens and half the diagonal length ImgH of the effective pixel area on the imaging surface satisfy the following relationship: 6.0 <ImgH*tan(Semi-FOV)<10.0。

[0074] Preferably, 6.0 <ImgH*tan(Semi-FOV)≤8.5。

[0075] By reasonably distributing the optical powers of each lens, it is beneficial to improve the temperature drift and balance the aberration generated by the camera lens, greatly increasing the imaging quality of the camera lens. By restricting the relationship between the maximum semi-field angle Semi-FOV of the camera lens and half of the diagonal length ImgH of the effective pixel area on the imaging surface within a reasonable range, the field angle of the camera lens can be reasonably restricted, ensuring a wide shooting range while maintaining a large imaging surface area, which is beneficial to improving the imaging quality. In addition, the camera lens of the present application can meet both a large field angle and small distortion, can balance the performance of ultra-wide angle and small distortion, and can ensure high pixels and has good imaging quality.

[0076] In this embodiment, the relationship between the effective focal length f of the camera lens and half of the diagonal length ImgH of the effective pixel area on the imaging surface satisfies: 1.5 ≤ ImgH / f < 2.5. By reasonably restricting the ratio between half of the diagonal length ImgH of the effective pixel area on the imaging surface and the effective focal length f of the camera lens, the chief ray angle of the camera lens can be reasonably restricted, which is beneficial to chip matching and reduces image vignetting and color cast. Preferably, 1.5 ≤ ImgH / f < 2.4.

[0077] In this embodiment, the relationship between the effective focal length f of the camera lens, the central thickness CT1 of the first lens and the central thickness CT2 of the second lens satisfies: 5.0 < f / (CT2 - CT1) < 10. Satisfying this conditional expression can ensure the processability of the first lens and the second lens and is beneficial to lens forming. Preferably, 5.0 < f / (CT2 - CT1) ≤ 8.

[0078] In this embodiment, the relationship between the central thickness CT5 of the fifth lens and the central thickness CT6 of the sixth lens satisfies: 2.5 < (CT6 + CT5) / (CT6 - CT5) < 3.5. Satisfying this conditional expression is beneficial to controlling the processability of the fifth lens and the sixth lens and is beneficial to lens forming. Preferably, 2.7 < (CT6 + CT5) / (CT6 - CT5) < 3.5.

[0079] In this embodiment, the relationship between the central thickness CT3 of the third lens, the central thickness CT4 of the fourth lens and the central thickness CT6 of the sixth lens satisfies: 1.0 < (CT3 + CT4) / CT6 ≤ 1.5. Satisfying this conditional expression is beneficial to controlling the processability of the third lens, the fourth lens and the sixth lens and is beneficial to lens forming. Preferably, 1.1 < (CT3 + CT4) / CT6 ≤ 1.5.

[0080] In this embodiment, the following relationship is satisfied among the effective focal length f of the camera lens, the central thickness CT3 of the third lens, and the central thickness CT4 of the fourth lens: 1.0 < f / (CT3 + CT4) ≤ 1.6. Meeting this conditional formula is beneficial to restricting the processability of the third lens and the fourth lens and is conducive to lens forming. Preferably, 1.2 < f / (CT3 + CT4) ≤ 1.6.

[0081] In this embodiment, the following relationship is satisfied among the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the air gap T34 between the third lens and the fourth lens on the optical axis, and the air gap T45 between the fourth lens and the fifth lens on the optical axis: 2.0 < (T12 + T23) / (T34 + T45) < 3.0. Meeting this conditional formula realizes the axial dimension constraint from the first lens to the fifth lens, ensures that the structure of the camera lens is relatively compact, and enables the lens sensitivity to be optimized to a certain extent. Preferably, 2.0 < (T12 + T23) / (T34 + T45) < 2.8.

[0082] In this embodiment, the following relationship is satisfied between the effective focal length f of the camera lens and the effective focal length f6 of the sixth lens: 1.0 < f6 / f < 2.0. Meeting this conditional formula is beneficial to the reasonable distribution of the optical power of the sixth lens and is conducive to improving the system imaging quality. Preferably, 1.3 < f6 / f < 1.8.

[0083] In this embodiment, the following relationship is satisfied among the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens: 1.9 < (|f2| + |f3|) / (|f4| + |f5|) < 3.0. Meeting this conditional formula is beneficial to the reasonable distribution of the optical power of the lenses to improve the system imaging quality. Preferably, 1.9 < (|f2| + |f3|) / (|f4| + |f5|) ≤ 2.6.

[0084] In this embodiment, the following relationship is satisfied among the effective focal length f of the camera lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens: -1.0 < 10*(f / f4 + f / f5) < 0. Meeting this conditional formula can make the optical power distribution of the fourth lens and the fifth lens more reasonable and help reduce aberration. Preferably, -0.7 < 10*(f / f4 + f / f5) < -0.2.

[0085] In this embodiment, the following relationship is satisfied among the effective focal length f of the camera lens, the effective focal length f2 of the second lens, and the effective focal length f3 of the third lens: 10*|f / f2 - f / f3| ≤ 0.6. Meeting this conditional formula can make the optical power distribution of the second lens and the third lens more reasonable and help reduce aberration.

[0086] In this embodiment, the relationship between the effective focal length f of the imaging lens and the average value AVE(f) of the absolute values of the effective focal lengths of the first lens to the sixth lens satisfies: 1.0 < AVE(f) / f < 1.7. By controlling the ratio between the average value AVE(f) of the absolute values of the effective focal lengths of the first lens to the sixth lens and the effective focal length f of the imaging lens within a reasonable range, it is beneficial to the reasonable distribution of the optical powers of the first lens to the sixth lens, helps to reduce aberration, and improves the imaging quality. Preferably, 1.2 < AVE(f) / f < 1.7.

[0087] In this embodiment, the relationship between the effective focal length f6 of the sixth lens and the average value AVE(f) of the absolute values of the effective focal lengths of the first lens to the sixth lens satisfies: 0.8 < f6 / AVE(f) < 1.5. This is beneficial to the reasonable distribution of the optical powers of the first lens to the sixth lens, helps to reduce aberration, and improves the imaging quality.

[0088] In this embodiment, the relationship between the effective focal length f of the imaging lens and the curvature C1 of the object side surface of the first lens satisfies: -11.0 < f / C1 < -6.0. Satisfying this conditional formula can constrain the shape of the first lens and is beneficial to the forming process. Preferably, -11.0 < f / C1 < -6.8.

[0089] In this embodiment, the relationship between the curvature radius R1 of the object side surface of the first lens and the curvature radius R2 of the image side surface of the first lens satisfies: 2.0 < (R1 - R2) / (R1 + R2) < 2.5. Satisfying this conditional formula can effectively control the contribution of the astigmatism of the object side surface and the image side surface of the first lens, and then effectively control the image quality of the middle field of view and the aperture band reasonably. Preferably, 2.2 < (R1 - R2) / (R1 + R2) < 2.5.

[0090] In this embodiment, the relationship among the effective focal length f of the imaging lens, the curvature radius R7 of the object side surface of the fourth lens, and the curvature radius R8 of the image side surface of the fourth lens satisfies: 0.5 < f / (R7 + R8) < 1.2. Satisfying this conditional formula ensures that the fourth lens has reasonable optical power and shape. Preferably, 0.6 < f / (R7 + R8) < 1.2.

[0091] In this embodiment, the relationship between the curvature radius R10 of the image side surface of the fifth lens and the curvature radius R11 of the object side surface of the sixth lens satisfies: -2.0 < R10 / R11 < -1.3. Satisfying this conditional formula ensures that the fifth lens and the sixth lens have reasonable optical power and shape. Preferably, -1.7 < R10 / R11 < -1.3.

[0092] In this embodiment, the effective focal length f of the camera lens, the radius of curvature R9 of the object side of the fifth lens, and the radius of curvature R12 of the image side of the sixth lens satisfy: -3.0 < f / R9 + f / R12 < -2.0. Meeting this conditional formula can balance the aberration generated by the front and rear lens combinations, keep the system aberration at a reasonable level, and thus enable the camera lens to have good imaging quality. Preferably, -2.7 < f / R9 + f / R12 < -2.3.

[0093] In this embodiment, the optical distortion ODT of the camera lens at a 0.8 field of view 0.8 satisfies: |ODT 0.8 | < 5%. Meeting this conditional formula helps to reduce the different degrees of deformation and distortion formed at the edge of the image, improve the imaging quality, and at the same time facilitate the correction of subsequent software algorithms.

[0094] Embodiment 2

[0095] As Figures 1 to 24 shown, the camera lens sequentially includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens along the optical axis from the object side to the image side. The first lens has a negative optical power; the second lens has a positive optical power; the third lens has a positive optical power; the fourth lens has a positive optical power; the fifth lens has a negative optical power; the sixth lens has a positive optical power. Among them, the center thickness CT3 of the third lens, the center thickness CT4 of the fourth lens, and the center thickness CT6 of the sixth lens satisfy: 1.0 < (CT3 + CT4) / CT6 ≤ 1.5.

[0096] Preferably, 1.1 < (CT3 + CT4) / CT6 ≤ 1.5.

[0097] By reasonably distributing the optical powers of each lens, it is beneficial to improve the temperature drift, and at the same time, it is beneficial to balance the aberration generated by the camera lens, greatly increasing the imaging quality of the camera lens. By reasonably controlling the relationship between the center thickness CT3 of the third lens, the center thickness CT4 of the fourth lens, and the center thickness CT6 of the sixth lens within a reasonable range, it is beneficial to control the processability of the third lens, the fourth lens, and the sixth lens, and is beneficial to lens forming. At the same time, it is beneficial to ensure miniaturization. In addition, the camera lens of the present application can meet a large field of view while meeting small distortion, can balance the performance of super wide angle and small distortion, and at the same time can ensure high pixels and has good imaging quality.

[0098] In this embodiment, the relationship between the maximum semi-field angle Semi-FOV of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfies: 6.0 < ImgH * tan(Semi-FOV) < 10.0. By constraining the relationship between the maximum semi-field angle Semi-FOV of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface within a reasonable range, the field angle of the camera lens can be reasonably constrained, ensuring a wide shooting range while maintaining a large image plane area, which is beneficial to improving the imaging quality. Preferably, 6.0 < ImgH * tan(Semi-FOV) ≤ 8.5.

[0099] In this embodiment, the relationship between the effective focal length f of the camera lens and half of the diagonal length ImgH of the effective pixel region on the imaging surface satisfies: 1.5 ≤ ImgH / f < 2.5. By reasonably constraining the ratio between half of the diagonal length ImgH of the effective pixel region on the imaging surface and the effective focal length f of the camera lens, the chief ray angle of the camera lens can be reasonably constrained, which is beneficial to chip matching and reduces image vignetting and color cast. Preferably, 1.5 ≤ ImgH / f < 2.4.

[0100] In this embodiment, the relationship between the effective focal length f of the camera lens, the central thickness CT1 of the first lens, and the central thickness CT2 of the second lens satisfies: 5.0 < f / (CT2 - CT1) < 10. Satisfying this conditional formula can ensure the processability of the first lens and the second lens, which is beneficial to lens forming. Preferably, 5.0 < f / (CT2 - CT1) ≤ 8.

[0101] In this embodiment, the relationship between the central thickness CT5 of the fifth lens and the central thickness CT6 of the sixth lens satisfies: 2.5 < (CT6 + CT5) / (CT6 - CT5) < 3.5. Satisfying this conditional formula is beneficial to controlling the processability of the fifth lens and the sixth lens, which is beneficial to lens forming. Preferably, 2.7 < (CT6 + CT5) / (CT6 - CT5) < 3.5.

[0102] In this embodiment, the relationship between the effective focal length f of the camera lens, the central thickness CT3 of the third lens, and the central thickness CT4 of the fourth lens satisfies: 1.0 < f / (CT3 + CT4) ≤ 1.6. Satisfying this conditional formula is beneficial to constraining the processability of the third lens and the fourth lens, which is beneficial to lens forming. Preferably, 1.2 < f / (CT3 + CT4) ≤ 1.6.

[0103] In this embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the air gap T34 between the third lens and the fourth lens on the optical axis, and the air gap T45 between the fourth lens and the fifth lens on the optical axis satisfy: 2.0 < (T12 + T23) / (T34 + T45) < 3.0. By satisfying this conditional expression, the axial dimension from the first lens to the fifth lens is constrained, ensuring that the structure of the camera lens is relatively compact, and enabling the lens sensitivity to be optimized to a certain extent. Preferably, 2.0 < (T12 + T23) / (T34 + T45) < 2.8.

[0104] In this embodiment, the effective focal length f of the camera lens and the effective focal length f6 of the sixth lens satisfy: 1.0 < f6 / f < 2.0. By satisfying this conditional expression, it is beneficial to reasonably distribute the optical power of the sixth lens and is conducive to improving the imaging quality of the system. Preferably, 1.3 < f6 / f < 1.8.

[0105] In this embodiment, the effective focal length f2 of the second lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy: 1.9 < (|f2| + |f3|) / (|f4| + |f5|) < 3.0. By satisfying this conditional expression, it is beneficial to reasonably distribute the optical power of the lenses to improve the imaging quality of the system. Preferably, 1.9 < (|f2| + |f3|) / (|f4| + |f5|) ≤ 2.6.

[0106] In this embodiment, the effective focal length f of the camera lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy: -1.0 < 10 * (f / f4 + f / f5) < 0. By satisfying this conditional expression, the optical power of the fourth lens and the fifth lens can be more reasonably distributed, which helps to reduce aberration. Preferably, -0.7 < 10 * (f / f4 + f / f5) < -0.2.

[0107] [[ID=?]]In this embodiment, the effective focal length f of the camera lens, the effective focal length f2 of the second lens, and the effective focal length f3 of the third lens satisfy: 10 * |f / f2 - f / f3| ≤ 0.6. By satisfying this conditional expression, the optical power of the second lens and the third lens can be more reasonably distributed, which helps to reduce aberration.

[0108] It seems there is a typo in the original text for item . It should be "In this embodiment, the effective focal length f of the camera lens, the effective focal length f2 of the second lens, and the effective focal length f3 of the third lens satisfy: 10 * |f / f2 - f / f3| ≤ 0.6. By satisfying this conditional expression, the optical power of the second lens and the third lens can be more reasonably distributed, which helps to reduce aberration." And the translation for this corrected item is provided above as well.In this embodiment, the relationship between the effective focal length f of the camera lens and the average value AVE(f) of the absolute values of the effective focal lengths of the first lens to the sixth lens satisfies: 1.0 < AVE(f) / f < 1.7. By controlling the ratio between the average value AVE(f) of the absolute values of the effective focal lengths of the first lens to the sixth lens and the effective focal length f of the camera lens within a reasonable range, it is beneficial to the reasonable distribution of the optical power of the first lens to the sixth lens, helps to reduce aberration, and improves the imaging quality. Preferably, 1.2 < AVE(f) / f < 1.7.

[0109] In this embodiment, the relationship between the effective focal length f6 of the sixth lens and the average value AVE(f) of the absolute values of the effective focal lengths of the first lens to the sixth lens satisfies: 0.8 < f6 / AVE(f) < 1.5. This is beneficial to the reasonable distribution of the optical power of the first lens to the sixth lens, helps to reduce aberration, and improves the imaging quality.

[0110] In this embodiment, the relationship between the effective focal length f of the camera lens and the curvature C1 of the object side surface of the first lens satisfies: -11.0 < f / C1 < -6.0. Satisfying this conditional equation can constrain the shape of the first lens, which is beneficial for molding processing. Preferably, -11.0 < f / C1 < -6.8.

[0111] In this embodiment, the relationship between the curvature radius R1 of the object side surface of the first lens and the curvature radius R2 of the image side surface of the first lens satisfies: 2.0 < (R1 - R2) / (R1 + R2) < 2.5. Satisfying this conditional equation can effectively control the contribution of the astigmatism of the object side surface and the image side surface of the first lens, and then effectively control the image quality of the middle field and the aperture band reasonably. Preferably, 2.2 < (R1 - R2) / (R1 + R2) < 2.5.

[0112] In this embodiment, the relationship between the effective focal length f of the camera lens, the curvature radius R7 of the object side surface of the fourth lens and the curvature radius R8 of the image side surface of the fourth lens satisfies: 0.5 < f / (R7 + R8) < 1.2. Satisfying this conditional equation ensures that the fourth lens has a reasonable optical power and shape. Preferably, 0.6 < f / (R7 + R8) < 1.2.

[0113] In this embodiment, the relationship between the curvature radius R10 of the image side surface of the fifth lens and the curvature radius R11 of the object side surface of the sixth lens satisfies: -2.0 < R10 / R11 < -1.3. Satisfying this conditional equation ensures that the fifth lens and the sixth lens have reasonable optical power and shape. Preferably, -1.7 < R10 / R11 < -1.3.

[0114] In this embodiment, the effective focal length f of the camera lens, the radius of curvature R9 of the object side surface of the fifth lens, and the radius of curvature R12 of the image side surface of the sixth lens satisfy: -3.0 < f / R9 + f / R12 < -2.0. Satisfying this conditional expression can balance the aberration generated by the front and rear lens combinations, keep the system aberration at a reasonable level, and further enable the camera lens to have good imaging quality. Preferably, -2.7 < f / R9 + f / R12 < -2.3.

[0115] In this embodiment, the optical distortion ODT of the camera lens at a 0.8 field of view 0.8 satisfies: |ODT 0.8 | < 5%. Satisfying this conditional expression helps to reduce the different degrees of deformation and distortion formed at the edge of the picture, improve the imaging quality, and at the same time facilitate the correction of the later software algorithm.

[0116] Optionally, the above camera lens may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0117] The camera lens in this application can adopt multiple lenses, such as the six lenses mentioned above. By reasonably distributing the optical power, surface shape, central thickness of each lens, and the on-axis distance between each lens, etc., the aperture of the camera lens can be effectively increased, the sensitivity of the lens can be reduced, and the processability of the lens can be improved, making the camera lens more conducive to production and processing and applicable to portable electronic devices such as smart phones. The above camera lens also has the advantages of a large aperture, a large field of view angle, being ultra-thin, and having good imaging quality, and can meet the requirements of miniaturization of smart electronic products.

[0118] In this application, at least one of the mirror surfaces of each lens is an aspherical mirror surface. The characteristics of an aspherical lens are that the curvature changes continuously from the center of the lens to the periphery of the lens. Different from a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better radius of curvature characteristics and has the advantages of improving distortion aberration and astigmatism aberration. After using an aspherical lens, the aberration that appears during imaging can be eliminated as much as possible, thereby improving the imaging quality.

[0119] However, those skilled in the art should understand that without departing from the technical solutions claimed in this application, the number of lenses constituting the camera lens can be changed to obtain the various results and advantages described in this specification. For example, although six lenses are described as an example in the embodiment, the camera lens is not limited to including six lenses. If necessary, the camera lens may further include other numbers of lenses.

[0120] The following further describes, with reference to the accompanying drawings, examples of the specific surface shapes and parameters of the camera lens applicable to the above embodiments. [[ID=**23**]]

[0121] It should be noted that any one of the following examples 1 to 8 is applicable to all embodiments of the present application.

[0122] Example 1

[0123] like Figures 1 to 3 As shown, the camera lens of Example 1 of the present application is described. Figure 1 A schematic diagram showing the structure of a camera lens of Example 1 is shown.

[0124] like Figure 1 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0125] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0126] In this example, the total effective focal length f of the camera lens is 2.10 mm, and the full field of view FOV of the camera lens is 124.1°.

[0127] Table 1 shows the basic structural parameters of the camera lens of Example 1, wherein the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0128]

[0129]

[0130] Table 1

[0131] In Example 1, the object-side surface and the image-side surface of any lens from the first lens E1 to the sixth lens E6 are both aspherical surfaces. The surface shape of each aspherical lens can be defined by, but is not limited to, the following aspherical surface formula:

[0132]

[0133] Where x is the distance vector 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., paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; and Ai is the correction coefficient for the i-th order of the aspheric surface. Table 2 below lists 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 aspheric mirror surface S1-S12 in Example 1.

[0134] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.0064E-01 -1.9693E-01 1.6063E-01 -9.8640E-02 4.4557E-02 -1.4387E-02 3.2147E-03 S2 -6.5964E-03 7.2371E-02 7.8556E-02 -1.8757E+00 6.9946E+00 -1.4405E+01 1.9282E+01 S3 -1.7314E-01 3.7303E-01 -1.6311E+00 6.6021E+00 -1.9311E+01 3.8174E+01 -4.8777E+01 S4 1.9847E-01 -2.5702E+00 5.0376E+01 -5.8484E+02 4.4893E+03 -2.3538E+04 8.5602E+04 S5 -2.4411E-02 -1.7970E-01 2.0633E+00 -1.7298E+01 8.6302E+01 -2.6293E+02 4.7478E+02 S6 -3.6380E-01 4.0267E-01 3.5985E-01 -1.0813E+01 6.3823E+01 -2.1775E+02 4.7718E+02 S7 -3.3794E-01 6.1129E-01 -2.3114E+00 8.0286E+00 -2.0582E+01 3.7869E+01 -4.9393E+01 S8 2.9714E-01 -1.5105E+00 5.3916E+00 -1.6617E+01 2.9806E+01 -1.8269E+00 -1.1722E+02 S9 1.5960E+00 -5.3920E+00 1.6489E+01 -3.6502E+01 3.3497E+01 9.6849E+01 -4.5082E+02 S10 2.4866E-01 -4.5630E-01 1.0657E+00 -1.7984E+00 2.3322E+00 -2.3175E+00 1.7028E+00 S11 -4.3371E-01 5.0355E-01 -5.5948E-01 4.8278E-01 -3.1310E-01 1.5284E-01 -5.6243E-02 S12 -1.1436E-01 9.2403E-02 -9.0867E-02 6.6512E-02 -3.4641E-02 1.3056E-02 -3.6137E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 -4.7130E-04 4.0771E-05 -1.5772E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 -1.7561E+01 1.0942E+01 -4.5623E+00 1.2077E+00 -1.8411E-01 1.3870E-02 -5.1193E-04 S3 3.7274E+01 -1.2868E+01 -2.3329E+00 3.3994E+00 -7.9875E-01 0.0000E+00 0.0000E+00 S4 -2.1556E+05 3.6829E+05 -4.0677E+05 2.6145E+05 -7.4072E+04 0.0000E+00 0.0000E+00 S5 -4.6961E+02 1.9703E+02 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -6.8776E+02 6.4182E+02 -3.6561E+02 1.1013E+02 -1.1682E+01 0.0000E+00 0.0000E+00 S7 4.4361E+01 -2.5927E+01 8.8262E+00 -1.3213E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 2.8203E+02 -3.5876E+02 2.8724E+02 -1.4975E+02 4.9596E+01 -9.5097E+00 8.0568E-01 S9 9.0784E+02 -1.1344E+03 9.4594E+02 -5.3001E+02 1.9251E+02 -4.1080E+01 3.9173E+00 S10 -9.0178E-01 3.3767E-01 -8.7040E-02 1.4688E-02 -1.4608E-03 6.4913E-05 0.0000E+00 S11 1.5543E-02 -3.1924E-03 4.7827E-04 -5.0625E-05 3.5802E-06 -1.5158E-07 2.9033E-09 S12 7.3861E-04 -1.1108E-04 1.2116E-05 -9.3080E-07 4.7684E-08 -1.4604E-09 2.0210E-11

[0135] Table 2

[0136] Figure 2 The astigmatism curve of the imaging lens of Example 1 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 3 The distortion curve of the camera lens of Example 1 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0137] according to Figure 2 and Figure 3 It can be seen that the camera lens given in Example 1 can achieve good imaging quality.

[0138] Example 2

[0139] like Figures 4 to 6 As shown, the camera lens of Example 2 of the present application is described. In this example and the following examples, for the sake of brevity, some descriptions similar to Example 1 will be omitted. Figure 4 A schematic diagram of the camera lens structure of Example 2 is shown.

[0140] like Figure 4 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0141] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0142] In this example, the total effective focal length f of the camera lens is 1.60 mm, and the full field of view FOV of the camera lens is 132.6°.

[0143] Table 3 shows the basic structural parameters of the camera lens of Example 2, wherein the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0144]

[0145] Table 3

[0146] Table 4 below gives 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 2.

[0147] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.9159E-01 -1.8746E-01 1.6578E-01 -1.2008E-01 6.6743E-02 -2.6703E-02 7.2988E-03 S2 1.1329E-01 -1.2442E+00 8.0912E+00 -3.3524E+01 9.1479E+01 -1.6982E+02 2.1773E+02 S3 -4.2559E-01 4.8242E+00 -4.3058E+01 2.3932E+02 -8.6795E+02 2.1304E+03 -3.6040E+03 S4 7.1470E-01 -1.8422E+01 3.3034E+02 -3.6858E+03 2.7249E+04 -1.3799E+05 4.8621E+05 S5 -8.9777E-02 1.5859E+00 -2.8180E+01 2.8339E+02 -1.7372E+03 6.5578E+03 -1.4828E+04 S6 -6.5972E-02 -6.4447E+00 8.2854E+01 -6.3198E+02 3.1767E+03 -1.0959E+04 2.6377E+04 S7 -3.5100E-01 7.2261E-01 -2.8079E+00 1.0110E+01 -2.7375E+01 5.1968E+01 -6.6535E+01 S8 7.6220E-01 -1.0213E+01 8.2036E+01 -4.1776E+02 1.4030E+03 -3.2449E+03 5.3311E+03 S9 1.5506E+00 -4.1890E+00 -4.1688E+00 1.6017E+02 -1.0669E+03 4.0390E+03 -1.0011E+04 S10 3.0378E-01 -1.0068E+00 3.8191E+00 -9.8941E+00 1.7565E+01 -2.1588E+01 1.8589E+01 S11 -4.3188E-01 4.9730E-01 -4.2610E-01 1.6052E-01 7.0672E-02 -1.2901E-01 8.2712E-02 S12 1.8724E-02 2.3677E-02 -4.2102E-02 1.4114E-02 6.8336E-03 -8.1367E-03 3.6441E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 -1.2810E-03 1.2938E-04 -5.6966E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 -1.9257E+02 1.1530E+02 -4.4677E+01 1.0176E+01 -1.0724E+00 1.5082E-02 -5.6002E-04 S3 4.2085E+03 -3.3338E+03 1.7117E+03 -5.1426E+02 6.8700E+01 0.0000E+00 0.0000E+00 S4 -1.1906E+06 1.9868E+06 -2.1535E+06 1.3663E+06 -3.8483E+05 0.0000E+00 0.0000E+00 S5 1.8356E+04 -9.5451E+03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -4.4247E+04 5.0694E+04 -3.7793E+04 1.6511E+04 -3.2046E+03 0.0000E+00 0.0000E+00 S7 5.5437E+01 -2.8464E+01 8.0686E+00 -9.4658E-01 0.0000E+00 0.0000E+00 0.0000E+00 S8 -6.3302E+03 5.4583E+03 -3.3905E+03 1.4814E+03 -4.3319E+02 7.6413E+01 -6.1782E+00 S9 1.7100E+04 -2.0542E+04 1.7357E+04 -1.0113E+04 3.8715E+03 -8.7684E+02 8.9054E+01 S10 -1.1296E+01 4.8247E+00 -1.4186E+00 2.7360E-01 -3.1176E-02 1.5912E-03 0.0000E+00 S11 -3.2259E-02 8.4521E-03 -1.5245E-03 1.8731E-04 -1.5002E-05 7.0661E-07 -1.4853E-08 S12 -9.8538E-04 1.7761E-04 -2.1922E-05 1.8374E-06 -1.0021E-07 3.2120E-09 -4.5948E-11

[0148] Table 4

[0149] Figure 5 The astigmatism curve of the imaging lens of Example 2 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 6 The distortion curve of the camera lens of Example 2 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0150] according to Figure 5 and Figure 6 It can be seen that the camera lens provided in Example 2 can achieve good imaging quality.

[0151] Example 3

[0152] like Figures 7 to 9 As shown, the camera lens of Example 3 of this application is described. Figure 7 A schematic diagram of the camera lens structure of Example 3 is shown.

[0153] like Figure 7 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0154] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0155] In this example, the total effective focal length f of the camera lens is 1.60 mm, and the full field of view FOV of the camera lens is 130.0°.

[0156] Table 5 shows the basic structural parameters of the camera lens of Example 3, wherein the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0157]

[0158] Table 5

[0159] Table 6 below gives 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.

[0160]

[0161]

[0162] Table 6

[0163] Figure 8 The astigmatism curve of the imaging lens of Example 3 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 9 The distortion curve of the camera lens of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0164] according to Figure 8 and Figure 9 It can be seen that the camera lens given in Example 3 can achieve good imaging quality.

[0165] Example 4

[0166] like Figures 10 to 12 As shown, the camera lens of Example 4 of the present application is described. Figure 10 A schematic diagram showing the structure of a camera lens of Example 4 is shown.

[0167] like Figure 10 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0168] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0169] In this example, the total effective focal length f of the camera lens is 1.78 mm, and the full field of view FOV of the camera lens is 127.7°.

[0170] Table 7 shows the basic structural parameters of the camera lens of Example 4, wherein the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0171]

[0172]

[0173] Table 7

[0174] Table 8 below gives 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 4.

[0175] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.9470E-01 -1.8839E-01 1.5880E-01 -1.0678E-01 5.5005E-02 -2.0621E-02 5.3514E-03 S2 4.7919E-02 -5.2450E-01 3.6760E+00 -1.6000E+01 4.4758E+01 -8.4432E+01 1.0975E+02 S3 -2.6680E-01 2.2162E+00 -2.0118E+01 1.1656E+02 -4.4075E+02 1.1255E+03 -1.9756E+03 S4 4.6387E-01 -1.0790E+01 1.9904E+02 -2.2878E+03 1.7438E+04 -9.0852E+04 3.2836E+05 S5 -1.7057E-02 -6.7161E-01 8.2159E+00 -5.6178E+01 2.1136E+02 -4.1407E+02 2.9766E+02 S6 -2.1153E-01 -3.5229E+00 5.0812E+01 -4.1415E+02 2.1930E+03 -7.8894E+03 1.9645E+04 S7 -3.3558E-01 6.1561E-01 -2.1745E+00 7.1032E+00 -1.8096E+01 3.3729E+01 -4.3139E+01 S8 4.6481E-01 -5.1931E+00 3.9564E+01 -1.9753E+02 6.4371E+02 -1.4235E+03 2.2108E+03 S9 1.6921E+00 -6.8204E+00 2.4015E+01 -3.2437E+01 -1.9395E+02 1.3215E+03 -4.0462E+03 S10 2.6602E-01 -6.8139E-01 2.3715E+00 -5.9548E+00 1.0549E+01 -1.3064E+01 1.1339E+01 S11 -4.5293E-01 5.8319E-01 -6.5078E-01 5.0904E-01 -2.7233E-01 9.8441E-02 -2.2751E-02 S12 -4.7741E-02 5.1398E-02 -4.1547E-02 4.7095E-03 1.3762E-02 -1.1038E-02 4.4471E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 -9.0150E-04 8.8104E-05 -3.7744E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 -9.8384E+01 5.9739E+01 -2.3527E+01 5.4859E+00 -6.1074E-01 1.4425E-02 -5.3391E-04 S3 2.3878E+03 -1.9536E+03 1.0339E+03 -3.1964E+02 4.3862E+01 0.0000E+00 0.0000E+00 S4 -8.2236E+05 1.3997E+06 -1.5442E+06 9.9531E+05 -2.8439E+05 0.0000E+00 0.0000E+00 S5 1.9458E+02 -3.0574E+02 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -3.3873E+04 3.9685E+04 -3.0131E+04 1.3361E+04 -2.6254E+03 0.0000E+00 0.0000E+00 S7 3.5635E+01 -1.7646E+01 4.5701E+00 -4.3434E-01 0.0000E+00 0.0000E+00 0.0000E+00 S8 -2.4648E+03 1.9927E+03 -1.1662E+03 4.8620E+02 -1.3875E+02 2.4663E+01 -2.0878E+00 S9 7.7272E+03 -9.9537E+03 8.8297E+03 -5.3364E+03 2.1032E+03 -4.8800E+02 5.0597E+01 S10 -6.9306E+00 2.9700E+00 -8.7431E-01 1.6853E-01 -1.9163E-02 9.7474E-04 0.0000E+00 S11 2.6126E-03 1.8370E-04 -1.2965E-04 2.4019E-05 -2.4008E-06 1.3071E-07 -3.0542E-09 S12 -1.1380E-03 1.9757E-04 -2.3672E-05 1.9337E-06 -1.0300E-07 3.2276E-09 -4.5158E-11

[0176] Table 8

[0177] Figure 11 The astigmatism curve of the imaging lens of Example 4 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 12 The distortion curve of the camera lens of Example 4 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0178] according to Figure 11 and Figure 12 It can be seen that the camera lens given in Example 4 can achieve good imaging quality.

[0179] Example 5

[0180] like Figures 13 to 15 As shown, the camera lens of Example 5 of the present application is described. Figure 13 A schematic diagram showing the structure of a camera lens of Example 5 is shown.

[0181] like Figure 13 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0182] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0183] In this example, the total effective focal length f of the camera lens is 1.91 mm, and the full field of view FOV of the camera lens is 124.6°.

[0184] Table 9 shows the basic structural parameters of the camera lens of Example 5, where the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0185]

[0186]

[0187] Table 9

[0188] Table 10 below gives 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 aspheric mirror surface S1-S12 in Example 5.

[0189] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.9476E-01 -1.8077E-01 1.3776E-01 -7.9086E-02 3.3790E-02 -1.0495E-02 2.2988E-03 S2 4.7843E-02 -4.6308E-01 3.1404E+00 -1.3430E+01 3.6716E+01 -6.7379E+01 8.5117E+01 S3 -3.2905E-01 2.9677E+00 -2.4743E+01 1.3141E+02 -4.5910E+02 1.0915E+03 -1.7965E+03 S4 5.2349E-01 -1.3171E+01 2.4241E+02 -2.7588E+03 2.0844E+04 -1.0809E+05 3.9043E+05 S5 -9.3727E-02 1.6057E+00 -2.2883E+01 1.9156E+02 -9.9670E+02 3.2371E+03 -6.3790E+03 S6 -1.9202E-01 -3.1294E+00 3.9851E+01 -2.8483E+02 1.3230E+03 -4.2079E+03 9.3753E+03 S7 -3.9323E-01 1.4568E+00 -9.4554E+00 4.4761E+01 -1.4105E+02 2.9707E+02 -4.1914E+02 S8 6.1494E-01 -7.9651E+00 6.9365E+01 -4.0477E+02 1.6018E+03 -4.4484E+03 8.8912E+03 S9 1.5227E+00 -4.3729E+00 9.9041E+00 -1.1628E+01 -2.5412E+01 1.8661E+02 -5.3955E+02 S10 2.4468E-01 -3.9389E-01 8.7352E-01 -1.5757E+00 2.3914E+00 -2.8189E+00 2.4061E+00 S11 -4.8719E-01 6.3459E-01 -7.2184E-01 5.9220E-01 -3.4416E-01 1.4260E-01 -4.2142E-02 S12 -1.6738E-01 2.6272E-01 -3.2300E-01 2.6361E-01 -1.4918E-01 6.0472E-02 -1.7866E-02 Face number A18 A20 A22 A24 A26 A28 A30 S1 -3.3659E-04 2.9534E-05 -1.1702E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 -7.4295E+01 4.4112E+01 -1.7098E+01 3.9666E+00 -4.5236E-01 1.3834E-02 -5.1050E-04 S3 2.0489E+03 -1.5901E+03 8.0184E+02 -2.3713E+02 3.1238E+01 0.0000E+00 0.0000E+00 S4 -9.8063E+05 1.6781E+06 -1.8646E+06 1.2118E+06 -3.4930E+05 0.0000E+00 0.0000E+00 S5 6.9676E+03 -3.2338E+03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -1.4673E+04 1.5839E+04 -1.1242E+04 4.7224E+03 -8.8894E+02 0.0000E+00 0.0000E+00 S7 3.9042E+02 -2.3008E+02 7.7651E+01 -1.1427E+01 0.0000E+00 0.0000E+00 0.0000E+00 S8 -1.2949E+04 1.3746E+04 -1.0509E+04 5.6290E+03 -2.0026E+03 4.2467E+02 -4.0601E+01 S9 9.6849E+02 -1.1762E+03 9.8814E+02 -5.6850E+02 2.1437E+02 -4.7806E+01 4.7825E+00 S10 -1.4505E+00 6.1018E-01 -1.7524E-01 3.2752E-02 -3.5899E-03 1.7498E-04 0.0000E+00 S11 8.7478E-03 -1.2195E-03 1.0052E-04 -2.4159E-06 -3.8092E-07 3.8461E-08 -1.1493E-09 S12 3.8719E-03 -6.1375E-04 7.0203E-05 -5.6326E-06 3.0040E-07 -9.5550E-09 1.3707E-10

[0190] Table 10

[0191] Figure 14 The astigmatism curve of the imaging lens of Example 5 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 15 The distortion curve of the camera lens of Example 5 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0192] according to Figure 14 and Figure 15 It can be seen that the camera lens given in Example 5 can achieve good imaging quality.

[0193] Example 6

[0194] like Figures 16 to 18 As shown, the camera lens of Example 6 of the present application is described. Figure 16 A schematic diagram showing the structure of a camera lens of Example 6 is shown.

[0195] like Figure 16 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0196] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0197] In this example, the total effective focal length f of the camera lens is 2.20 mm, and the full field of view FOV of the camera lens is 124.9°.

[0198] Table 11 shows the basic structural parameters of the camera lens of Example 6, where the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0199]

[0200] Table 11

[0201] Table 12 below gives 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 aspheric mirror surface S1-S12 in Example 6.

[0202]

[0203]

[0204] Table 12

[0205] Figure 17 The astigmatism curve of the imaging lens of Example 6 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 18 The distortion curve of the camera lens of Example 6 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0206] according to Figure 17 and Figure 18 It can be seen that the camera lens given in Example 6 can achieve good imaging quality.

[0207] Example 7

[0208] like Figures 19 to 21 As shown, the camera lens of Example 7 of this application is described. Figure 19 A schematic diagram showing the structure of a camera lens of Example 7 is shown.

[0209] like Figure 19 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0210] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0211] In this example, the total effective focal length f of the camera lens is 2.30 mm, and the full field of view FOV of the camera lens is 121.9°.

[0212] Table 13 shows the basic structural parameters of the camera lens of Example 7, where the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0213]

[0214] Table 13

[0215] Table 14 below gives the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 that can be used for the aspheric mirror surfaces S1-S12 in Example 7.

[0216]

[0217]

[0218] Table 14

[0219] Figure 20 The astigmatism curve of the imaging lens of Example 7 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 21 The distortion curve of the camera lens of Example 7 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0220] according to Figure 20 and Figure 21 It can be seen that the camera lens given in Example 7 can achieve good imaging quality.

[0221] Example 8

[0222] like Figures 22 to 24 As shown, the camera lens of Example 8 of the present application is described. Figure 22 A schematic diagram showing the structure of an imaging lens of Example 8.

[0223] like Figure 22 As shown, the camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0224] The first lens E1 has negative focal power, with its object-side surface S1 being concave, and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex, and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex, and its image-side surface S6 being convex. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex, and its image-side surface S8 being convex. The fifth lens E5 has negative focal power, with its object-side surface S9 being concave, and its image-side surface S10 being convex. The sixth lens E6 has positive focal power, with its object-side surface S11 being convex, and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through the surfaces S1 to S14 in sequence and is finally imaged on the imaging surface S15 .

[0225] In this example, the total effective focal length f of the camera lens is 2.40 mm, and the full field of view FOV of the camera lens is 121.4°.

[0226] Table 15 shows the basic structural parameters of the camera lens of Example 8, where the units of curvature radius, thickness / distance, focal length and effective radius are all millimeters (mm).

[0227]

[0228]

[0229] Table 15

[0230] Table 16 below gives 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 8.

[0231] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.0260E-01 -2.0122E-01 1.7126E-01 -1.1293E-01 5.5855E-02 -1.9950E-02 4.9447E-03 S2 -3.8114E-03 5.0065E-02 1.5046E-01 -1.8818E+00 6.6211E+00 -1.3523E+01 1.8243E+01 S3 -1.2072E-01 -6.1959E-01 7.5072E+00 -4.3963E+01 1.6233E+02 -4.0288E+02 6.8800E+02 S4 9.0579E-04 4.1638E+00 -7.5369E+01 8.6817E+02 -6.5783E+03 3.3962E+04 -1.2135E+05 S5 -1.6931E-02 -3.3460E-01 3.4510E+00 -2.3712E+01 9.4437E+01 -2.2241E+02 3.0115E+02 S6 -3.9633E-01 1.0973E+00 -5.7150E+00 1.6953E+01 6.7911E+00 -2.6620E+02 1.0905E+03 S7 -3.4325E-01 6.7837E-01 -2.6332E+00 8.4335E+00 -1.8979E+01 3.0582E+01 -3.6253E+01 S8 2.1981E-01 -2.6097E-01 -3.6328E+00 2.1782E+01 -7.5487E+01 1.8966E+02 -3.4322E+02 S9 1.6488E+00 -6.7681E+00 3.2051E+01 -1.4139E+02 4.9044E+02 -1.2592E+03 2.3827E+03 S10 2.2553E-01 -2.9174E-01 4.6491E-01 -4.1452E-01 1.7136E-01 3.6808E-02 -1.1373E-01 S11 -4.4338E-01 4.9290E-01 -5.1963E-01 4.2903E-01 -2.6788E-01 1.2638E-01 -4.5067E-02 S12 -1.9852E-01 1.7377E-01 -1.4515E-01 9.1044E-02 -4.1533E-02 1.3776E-02 -3.3233E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 -8.0244E-04 7.6435E-05 -3.2324E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 -1.6812E+01 1.0590E+01 -4.4551E+00 1.1891E+00 -1.8330E-01 1.4069E-02 -5.1983E-04 S3 -8.0951E+02 6.4419E+02 -3.3081E+02 9.8854E+01 -1.3048E+01 0.0000E+00 0.0000E+00 S4 3.0008E+05 -5.0402E+05 5.4885E+05 -3.4963E+05 9.8966E+04 0.0000E+00 0.0000E+00 S5 -2.1475E+02 6.0929E+01 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -2.4064E+03 3.2569E+03 -2.7047E+03 1.2687E+03 -2.5789E+02 0.0000E+00 0.0000E+00 S7 3.1296E+01 -1.8474E+01 6.5544E+00 -1.0382E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 4.3309E+02 -3.7067E+02 2.0627E+02 -6.7448E+01 8.8878E+00 1.1741E+00 -3.8636E-01 S9 -3.3358E+03 3.4435E+03 -2.5825E+03 1.3656E+03 -4.8186E+02 1.0169E+02 -9.6986E+00 S10 9.5036E-02 -4.8373E-02 1.5983E-02 -3.3268E-03 3.9582E-04 -2.0520E-05 0.0000E+00 S11 1.2092E-02 -2.4136E-03 3.5147E-04 -3.6139E-05 2.4794E-06 -1.0167E-07 1.8824E-09 S12 5.7832E-04 -7.0943E-05 5.8314E-06 -2.8470E-07 5.1254E-09 1.7307E-10 -7.6094E-12

[0232] Table 16

[0233] Figure 23 The astigmatism curve of the imaging lens of Example 8 is shown, which indicates meridional field curvature and sagittal field curvature. Figure 24 The distortion curve of the camera lens of Example 8 is shown, which represents the distortion magnitude values ​​corresponding to different field angles.

[0234] according to Figure 23 and Figure 24 It can be seen that the camera lens given in Example 8 can achieve good imaging quality.

[0235] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 17.

[0236] Conditional / Example 1 2 3 4 5 6 7 8 ImgH*tan(Semi-FOV) 7.00 8.46 7.96 7.32 7.07 7.11 6.47 6.40 ImgH / f 1.77 2.32 2.32 2.02 1.94 1.69 1.56 1.50 f / (CT2-CT1) 7.01 6.56 5.67 6.21 6.44 7.32 7.63 7.95 (CT6+CT5) / (CT6-CT5) 3.35 2.72 2.89 2.91 3.01 3.38 3.39 3.42 (CT3+CT4) / CT6 1.45 1.12 1.21 1.20 1.39 1.46 1.48 1.49 f / (CT3+CT4) 1.38 1.28 1.22 1.36 1.27 1.44 1.49 1.56 (T12+T23) / (T34+T45) 2.32 2.72 2.69 2.64 2.43 2.29 2.26 2.23 f6 / f 1.56 1.39 1.51 1.45 1.50 1.62 1.67 1.71 (|f2|+|f3|) / (|f4|+|f5|) 2.02 2.59 2.44 2.42 2.09 1.98 1.96 1.95 10*(f / f4+f / f5) -0.67 -0.23 -0.32 -0.38 -0.58 -0.61 -0.54 -0.50 10*|f / f2-f / f3| 0.31 0.58 0.48 0.47 0.03 0.36 0.32 0.23 AVE(f) / f 1.31 1.62 1.63 1.48 1.41 1.28 1.24 1.21 f6 / AVE(f) 1.19 0.86 0.92 0.98 1.06 1.27 1.34 1.41 f / C1 -8.71 -6.92 -6.83 -7.63 -7.92 -9.14 -9.60 -10.06 (R1-R2) / (R1+R2) 2.42 2.21 2.25 2.24 2.41 2.42 2.42 2.41 f / (R7+R8) 0.78 1.14 1.03 1.09 0.90 0.74 0.68 0.64 R10 / R11 -1.50 -1.65 -1.63 -1.62 -1.53 -1.45 -1.41 -1.39 f / R9+f / R12 -2.49 -2.56 -2.38 -2.51 -2.44 -2.53 -2.60 -2.63

[0237] Tables 17 and 18 show the effective focal length f of the camera lenses of Examples 1 to 8, the effective focal lengths f1 to f6 of each lens, etc.

[0238] Parameters / Examples 1 2 3 4 5 6 7 8 f1(mm) -2.20 -2.14 -2.15 -2.15 -2.19 -2.20 -2.21 -2.21 f2(mm) 3.80 3.74 3.71 3.70 3.78 3.79 3.76 3.73 f3(mm) 3.60 4.33 4.17 4.10 3.75 3.57 3.58 3.60 f4(mm) 1.89 1.57 1.64 1.64 1.85 1.90 1.91 1.91 f5(mm) -1.78 -1.54 -1.59 -1.59 -1.75 -1.81 -1.83 -1.84 f6(mm) 3.29 2.23 2.41 2.58 2.86 3.57 3.83 4.09 f(mm) 2.10 1.60 1.60 1.78 1.91 2.20 2.30 2.40 FOV(°) 124.1 132.6 130.0 127.7 124.6 124.9 121.9 121.4

[0239] Table 18

[0240] The present application also provides an imaging device, wherein the electronic photosensitive element thereof may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device may be a standalone imaging device such as a digital camera, or an imaging module integrated into a mobile electronic device such as a mobile phone. The imaging device is equipped with the camera lens described above.

[0241] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0242] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0243] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0244] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A camera lens, characterized in that: The camera lens is composed of six lenses, which include the following lenses in order from the object side to the image side along the optical axis: a first lens having negative optical power; a second lens having positive optical power; a third lens having positive optical power; a fourth lens having positive refractive power; a fifth lens having negative optical power; a sixth lens having positive optical power; The object-side surface of the first lens is concave, and the image-side surface of the first lens is concave; the object-side surface of the second lens is convex, and the image-side surface of the second lens is concave; the object-side surface of the third lens is convex, and the image-side surface of the third lens is convex; the object-side surface of the fourth lens is convex, and the image-side surface of the fourth lens is convex; the object-side surface of the fifth lens is concave, and the image-side surface of the fifth lens is convex; the object-side surface of the sixth lens is convex, and the image-side surface of the sixth lens is concave; Among them, the center thickness CT3 of the third lens, the center thickness CT4 of the fourth lens and the center thickness CT6 of the sixth lens satisfy: 1.12≤(CT3+CT4) / CT6<1.5; the center thickness CT5 of the fifth lens and the center thickness CT6 of the sixth lens satisfy: 2.72≤(CT6+CT5) / (CT6-CT5)≤3.42; the effective focal length f of the camera lens and the effective focal length f6 of the sixth lens satisfy: 1.39≤f6 / f≤1.

71.

2. The imaging lens according to claim 1, wherein: The maximum half field of view Semi-FOV of the camera lens and half of the diagonal length of the effective pixel area on the imaging plane ImgH satisfy the following: 6.40≤ImgH*tan(Semi-FOV)≤8.46; the effective focal length f of the camera lens and half of the diagonal length of the effective pixel area on the imaging plane ImgH satisfy the following: 1.50≤ImgH / f≤2.

32.

3. The camera lens according to claim 1, wherein: The effective focal length f of the camera lens, the center thickness CT1 of the first lens, and the center thickness CT2 of the second lens satisfy the following: 5.67≤f / (CT2-CT1)≤7.

95.

4. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens, the center thickness CT3 of the third lens, and the center thickness CT4 of the fourth lens satisfy the following: 1.22≤f / (CT3+CT4)<1.

6.

5. The imaging lens according to claim 1, wherein: An air gap T12 between the first lens and the second lens on the optical axis, an air gap T23 between the second lens and the third lens on the optical axis, an air gap T34 between the third lens and the fourth lens on the optical axis, and an air gap T45 between the fourth lens and the fifth lens on the optical axis satisfy the following: 2.23≤(T12+T23) / (T34+T45)≤2.

72.

6. The camera lens according to claim 1, wherein: The effective focal length f2 of the second lens, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy the following: 1.95≤(|f2|+|f3|) / (|f4|+|f5|)≤2.

59.

7. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens, the effective focal length f4 of the fourth lens, and the effective focal length f5 of the fifth lens satisfy the following: -0.67≤10*(f / f4+f / f5)≤-0.

23.

8. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens, the effective focal length f2 of the second lens, and the effective focal length f3 of the third lens satisfy the following: 0.03≤10*|f / f2-f / f3|<0.

6.

9. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens and the average value AVE(f) of the absolute values ​​of the effective focal lengths of the first to sixth lenses satisfy the following: 1.21≤AVE(f) / f≤1.

63.

10. The imaging lens according to claim 1, wherein: The effective focal length f6 of the sixth lens and the average value AVE(f) of the absolute values ​​of the effective focal lengths of the first to sixth lenses satisfy the following: 0.86≤f6 / AVE(f)≤1.

41.

11. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens and the curvature C1 of the object side surface of the first lens satisfy the following: -10.06≤f / C1≤-6.

83.

12. The imaging lens according to claim 1, wherein: A curvature radius R1 of the object-side surface of the first lens and a curvature radius R2 of the image-side surface of the first lens satisfy the following relationship: 2.21≤(R1-R2) / (R1+R2)≤2.

42.

13. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens, the curvature radius R7 of the object side surface of the fourth lens, and the curvature radius R8 of the image side surface of the fourth lens satisfy the following relationship: 0.64≤f / (R7+R8)≤1.

14.

14. The imaging lens according to claim 1, wherein: A curvature radius R10 of the image-side surface of the fifth lens and a curvature radius R11 of the object-side surface of the sixth lens satisfy the following relationship: -1.65≤R10 / R11≤-1.

39.

15. The imaging lens according to claim 1, wherein: The effective focal length f of the camera lens, the curvature radius R9 of the object side surface of the fifth lens, and the curvature radius R12 of the image side surface of the sixth lens satisfy the following relationship: -2.63≤f / R9+f / R12≤-2.

38.

16. The imaging lens according to claim 1, wherein: The optical distortion ODT of the camera lens at 0.8 field of view 0.8 Meets: |ODT 0.8 |<5%.

Images