Optical imaging lens, camera module, electronic device and vehicle

Abstract

The present application relates to the technical field of electronic products, and specifically discloses an optical imaging lens, a camera module, an electronic device, and an automobile. The optical imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens arranged in sequence from the object side to the image side; wherein, the optical imaging lens satisfies the conditional formula: -20 < f2 / f < -13, where f2 is the focal length of the second lens and f is the effective focal length of the optical imaging lens. By arranging seven lenses with negative-negative-positive-positive-negative-positive-positive refractive powers, the optical imaging lens of the present application is beneficial to correcting the aberration of the optical imaging lens, eliminating astigmatism, improving the imaging resolution of the optical imaging lens, and enabling the optical imaging lens to achieve a balance in expanding the field of view angle range and high pixel count. When the optical imaging lens in the present application is used in a vehicle camera, the driving risk can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and particularly relates to an optical imaging lens, a camera module, an electronic device, and an automobile. Background Art

[0002] With the development of the vehicle industry, the technical requirements for in-vehicle cameras such as forward view, automatic cruise, dash cam, and rear view camera are getting higher and higher. The forward view camera is an in-vehicle camera installed in front of the vehicle, which can analyze video content as a camera system in the advanced driver assistance system, providing lane departure warning (LDW), lane keeping assist (LKA), high beam / low beam control, and traffic sign recognition (TSR). It can be turned on when parking, and it can directly see the obstacles in front of the vehicle, making parking more convenient. When the vehicle passes through special places (such as roadblocks, parking lots, etc.), the forward view camera can be turned on at any time to judge the driving environment and feedback to the vehicle central system to issue correct instructions, which can avoid the occurrence of driving accidents.

[0003] However, the resolution of the existing forward view camera lens is low, the depth of field range is small, and the presentation of details at a long distance and clear imaging in a large angle range cannot be satisfied simultaneously. Therefore, it is impossible to accurately judge the details of long-distance shooting in real time to give an early warning or to identify obstacles in a large angle range to make an avoidance, and the driving risk is relatively high. Summary of the Invention

[0004] The present application discloses an optical imaging lens, a camera module, an electronic device, and an automobile. The optical imaging lens can achieve a balance between a large field of view angle and high imaging quality, reducing the driving risk of the vehicle.

[0005] To achieve the above object, an embodiment of the present application discloses an optical imaging lens, which includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens arranged in sequence from the object side to the image side;

[0006] The first lens has a negative refractive power; the second lens has a negative refractive power, and the object side surface of the second lens is concave in the near optical axis region; the third lens has a positive refractive power, and the image side surface of the third lens is convex in the near optical axis region; the fourth lens has a positive refractive power; the fifth lens has a negative refractive power; the sixth lens has a positive refractive power, and both the object side surface and the image side surface of the sixth lens are convex in the near optical axis region; the seventh lens has a positive refractive power, and the image side surface of the seventh lens is concave in the near optical axis region;

[0007] Wherein, the optical imaging lens satisfies the conditional formula: -20 < f2 / f < -13, where f2 is the focal length of the second lens, and f is the effective focal length of the optical imaging lens.

[0008] In the embodiments of the present application, both the first lens and the second lens have negative refractive power, which can capture the light rays incident on the optical imaging lens at large angles, facilitating the expansion of the beam width and further expanding the field of view angle range of the optical imaging lens. Since the light rays enter through the first lens and the second lens with relatively strong refractive power, the marginal field light rays are prone to generate significant field curvature when entering the imaging plane after being refracted by the first lens and the second lens. However, the third lens in the embodiments of the present application has positive refractive power, which is beneficial for correcting the marginal aberration generated by the front lens group in the marginal field, thereby improving the imaging resolution. Meanwhile, through the interaction of the fourth lens with positive refractive power and the fifth lens with negative refractive power, it is beneficial for further correcting the aberration generated by the refraction of the light rays through the front lens group, and further improving the imaging resolution of the optical imaging lens.

[0009] Finally, the sixth lens and the seventh lens have positive refractive power. With a reasonable surface configuration, the positive refractive power intensity provided for the optical imaging lens can be well constrained, thereby effectively correcting chromatic aberration. At the same time, as the last two lenses in the optical imaging lens, they can finally correct the aberration generated by the decentration difference of each lens on the object side, that is, it can reduce the decentration sensitivity of the optical imaging lens, which is beneficial for correcting the aberration of the optical imaging lens and improving the imaging resolution of the optical imaging lens. In addition, through the action of the sixth lens and the seventh lens with positive refractive power, the incident light beam can be focused, which is beneficial for effectively transmitting the image information collected by the optical imaging lens to the high-pixel imaging plane, thereby improving the imaging quality.

[0010] In addition, since the optical imaging lens satisfies the conditional formula -20 < f2 / f < -13. When the optical imaging lens satisfies this conditional formula, it is more conducive to the correction of aberration and can further improve the imaging quality of the optical imaging lens.

[0011] In summary, the optical imaging lens of the present application is provided with seven lenses having negative-negative-positive-negative-positive-positive refractive power, which is beneficial for correcting the aberration of the optical imaging lens, eliminating astigmatism, improving the imaging resolution of the optical imaging lens, and enabling the optical imaging lens to achieve a balance in expanding the field of view angle range and high pixels. When the optical imaging lens in this embodiment is used in the front-view camera of a vehicle, it can effectively reduce the driving risk.

[0012] As an alternative embodiment, in the embodiments of the present application, the optical imaging lens further satisfies the conditional formula: -18.5 < ∑f123 / f < -12.5, where ∑f123 is the sum of the focal lengths of the first lens, the second lens, and the third lens. When satisfying the conditional formula -18.5 < ∑f123 / f < -12.5, the optical imaging lens has sufficient refractive power to fully contract and capture the light beam carrying the information of the object to be photographed into the aperture, which is beneficial for meeting the imaging characteristics of the high pixels of the optical imaging lens.

[0013] As an alternative implementation, in the embodiments of the present application, the optical imaging lens further satisfies the conditional formula: 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| < 40, where Rs61 is the curvature radius of the object side of the sixth lens on the optical axis, and Rs62 is the curvature radius of the image side of the sixth lens on the optical axis. When the optical imaging lens satisfies the above conditional formula, the shape of the sixth lens can be reasonably configured so that the sixth lens will not be overly bent, which is beneficial to the processing and forming of the sixth lens, and can also reduce the design difficulty and assembly sensitivity of the sixth lens. In addition, in the embodiments of the present application, by making 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| < 40, it is beneficial to correct the marginal field aberration of the optical imaging lens, suppress the generation of astigmatism, and can also reduce the angle at which the chief ray of the peripheral viewing angle enters the imaging surface, thereby improving the imaging quality of the optical imaging lens. When the ratio of |Rs61 - Rs62| / |Rs61 + Rs62| exceeds the range of the above conditional formula, it is not conducive to the correction of aberrations of the optical imaging lens.

[0014] As an alternative implementation, in the embodiments of the present application, the optical imaging lens further satisfies the conditional formula: -27.5 < f45 / f < -13, where f45 is the combined focal length of the fourth lens and the fifth lens. By providing a fourth lens with positive refractive power and a fifth lens with negative refractive power, the positive and negative alternating lenses can correct the aberrations generated by each other. In addition, the two lenses can also be used to correct the aberrations generated by the refraction of light through the front lens, improving the resolution of the optical imaging lens; by satisfying the conditional formula -27.5 < f45 / f < -13, the ratio of the combined focal length of the fourth lens and the fifth lens to the effective focal length of the optical imaging lens can be reasonably configured, which is beneficial to improving the field curvature and distortion of the optical imaging lens, reducing the angle at which the light exits the optical imaging lens after being refracted by the lens group, reducing the incident angle of the light on the photosensitive element on the image side of the optical imaging lens, and further improving the photosensitive performance of the photosensitive element, ultimately achieving the purpose of improving the imaging quality of the optical imaging lens.

[0015] As an alternative implementation, in the embodiments of the present application, the optical imaging lens further satisfies the conditional formula: 51 (° / mm) < FOV / EPD < 54 (° / mm), where FOV is the maximum field of view angle of the optical imaging lens, and EPD is the entrance pupil diameter of the optical imaging lens. By satisfying the above conditional formula, the light input amount and the entrance pupil diameter of the optical imaging lens can be controlled, enabling the optical imaging lens to have a larger field of view angle range, while also having the effect of a large aperture and a relatively long depth of field range. That is to say, by satisfying the above conditional formula, the optical imaging lens can achieve clear imaging at a long distance and a large angle, while also having a clear recognition ability for nearby scenes.

[0016] As an alternative embodiment, in the embodiment of the present application, the optical imaging lens further includes a diaphragm, and the diaphragm is disposed on the object side of the first lens or between any two adjacent lenses among the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens. The optical imaging lens further satisfies the conditional formula: 1.5 < TTL / DOS < 2, where DOS is the distance from the object side surface of the first lens to the surface of the diaphragm on the optical axis, and TTL is the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis. When the optical imaging lens exceeds the lower limit of the conditional formula 1.5 < TTL / DOS < 2, a large-angle light beam is difficult to enter the optical imaging lens, reducing the object space imaging range of the optical imaging lens and being unfavorable for achieving a wide-angle optical imaging lens. When the optical imaging lens exceeds the upper limit of the conditional formula 1.5 < TTL / DOS < 2, the overall optical length of the optical imaging lens is too long, which is unfavorable for miniaturizing the optical imaging lens. That is to say, by making the light imaging lens satisfy the conditional formula 1.5 < TTL / DOS < 2, it is convenient to achieve a compact and miniaturized design of the optical imaging lens.

[0017] As an alternative embodiment, in the embodiment of the present application, the optical imaging lens further satisfies the conditional formula: 2.5 < f6 / f < 5.7, where f6 is the focal length of the sixth lens. By satisfying the conditional formula 2.5 < f6 / f < 5.7, the positive optical power of the sixth lens of the optical imaging lens will not become too strong, so that the angles between the normal lines of the object side and the image side of the sixth lens and the incident light will not become too large, and it is easy to suppress the occurrence of high-order aberrations. When the ratio of f6 / f exceeds the above conditional formula range, it is unfavorable for the optical imaging lens to correct aberrations, thereby reducing the imaging quality.

[0018] As an alternative embodiment, in the embodiment of the present application, the optical imaging lens further satisfies the conditional formula: 3.3 < f7 / f < 10.5, where f7 is the focal length of the seventh lens. By satisfying the conditional formula 3.3 < f7 / f < 10.5, the positive optical power of the seventh lens of the optical imaging lens will not become too strong, so that the angles between the normal lines of the object side and the image side of the seventh lens and the incident light will not become too large, and it is easy to suppress the occurrence of high-order aberrations. When the ratio of f7 / f exceeds the above conditional formula range, it is unfavorable for the optical imaging lens to correct aberrations, thereby reducing the imaging quality.

[0019] As an alternative embodiment, in the embodiments of the present application, at least two of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens have aspherical surfaces on both the image side and the object side. The aspherical surface profile facilitates the correction of the aberration of the optical imaging lens.

[0020] As an alternative embodiment, in the embodiments of the present application, the fourth lens and the fifth lens are glued together to form a cemented lens, and the cemented surface of the cemented lens bulges towards the image side of the optical imaging lens. That is, the cemented surface of the cemented lens bulges towards the imaging surface of the optical imaging lens. By gluing the fourth lens and the fifth lens, the cumulative tolerances of the two components of the fourth lens and the fifth lens can be set as the tolerance of an integrated component, which can reduce the eccentricity sensitivity of the assembly of multiple lenses, thereby reducing the assembly sensitivity of the optical imaging lens, reducing the lens manufacturing process and the assembly difficulty of the optical imaging lens, and improving the yield rate of the optical imaging lens. At the same time, aberration correction is performed by the fourth lens and the fifth lens, which is beneficial to improving the imaging resolution of the optical imaging lens. In addition, the setting of the cemented lens is also beneficial to shortening the total length of the optical imaging lens, facilitating the realization of the miniaturized design of the optical imaging lens.

[0021] In a second aspect, the embodiments of the present application also disclose an imaging module, which includes a housing, a photosensitive element, and the above-mentioned optical imaging lens. Among them, the photosensitive element and the optical imaging lens are both disposed in the housing, and the photosensitive element is disposed on the image side of the optical imaging lens.

[0022] In a third aspect, the embodiments of the present application also disclose an electronic device, which includes a housing and the above-mentioned imaging module, and the imaging module is disposed in the housing.

[0023] In a fourth aspect, the embodiments of the present application also disclose a vehicle, which includes a mounting portion and the above-mentioned electronic device, and the electronic device is disposed in the mounting portion.

[0024] Compared with the prior art, an optical imaging lens, an imaging module, an electronic device, and a vehicle of the present application have at least the following beneficial effects:

[0025] Both the first lens and the second lens in this application have negative refractive powers, which can capture the light rays entering the optical imaging lens at large angles, facilitating the expansion of the beam width and thus the field of view angle range of the optical imaging lens. Since the light rays enter through the first lens and the second lens with relatively strong refractive powers, the marginal field light rays are prone to significant field curvature when they enter the imaging plane after being refracted by the first lens and the second lens. However, the third lens in this application has a positive refractive power, which is conducive to correcting the marginal aberration generated by the front lens group in the marginal field and improving the imaging resolution. Meanwhile, through the interaction of the fourth lens with a positive refractive power and the fifth lens with a negative refractive power, it is beneficial to further correct the aberration generated by the refraction of the light rays through the front lens group, thereby enhancing the imaging resolution of the optical imaging lens.

[0026] Finally, the sixth lens and the seventh lens have positive refractive powers. With a reasonable surface configuration, the positive refractive power intensity provided for the optical imaging lens can be well constrained, thus effectively correcting chromatic aberration. At the same time, as the last two lenses in the optical imaging lens, they can finally correct the aberration generated by the decentration difference of each lens on the object side, that is, it can reduce the decentration sensitivity of the optical imaging lens, which is beneficial to correcting the aberration of the optical imaging lens and improving the imaging resolution of the optical imaging lens. In addition, since the optical imaging lens satisfies the conditional formula -20 < f2 / f < -13. When the optical imaging lens meets this conditional formula, it is more conducive to correcting aberration and can further improve the imaging quality of the optical forming lens.

[0027] In summary, the optical imaging lens of this application, by setting seven lenses with negative-negative-positive-negative-positive-positive refractive powers, is beneficial to correcting the aberration of the optical imaging lens, eliminating astigmatism, improving the imaging resolution of the optical imaging lens, and enabling the optical imaging lens to achieve a balance in expanding the field of view angle range and high pixel count. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of the optical imaging lens disclosed in Embodiment 1 of this application;

[0030] Figure 2 It is the longitudinal spherical aberration curve, astigmatism curve, and distortion curve diagram of the optical imaging lens disclosed in Embodiment 1 of this application;

[0031] Figure 3 It is a schematic structural diagram of the optical imaging lens disclosed in Embodiment 2 of this application;

[0032] Figure 4 They are the longitudinal spherical aberration curve, astigmatism curve and distortion curve diagram of the optical imaging lens disclosed in the second embodiment of the present application;

[0033] Figure 5 It is a schematic structural diagram of the optical imaging lens disclosed in the third embodiment of the present application;

[0034] Figure 6 They are the longitudinal spherical aberration curve, astigmatism curve and distortion curve diagram of the optical imaging lens disclosed in the third embodiment of the present application;

[0035] Figure 7 It is a schematic structural diagram of the optical imaging lens disclosed in the fourth embodiment of the present application;

[0036] Figure 8 They are the longitudinal spherical aberration curve, astigmatism curve and distortion curve diagram of the optical imaging lens disclosed in the fourth embodiment of the present application;

[0037] Figure 9 It is a schematic structural diagram of the optical imaging lens disclosed in the fifth embodiment of the present application;

[0038] Figure 10 They are the longitudinal spherical aberration curve, astigmatism curve and distortion curve diagram of the optical imaging lens disclosed in the fifth embodiment of the present application;

[0039] Figure 11 It is a schematic three-dimensional structure diagram of the camera module disclosed in the embodiment of the present application;

[0040] Figure 12 It is a front view of the electronic device disclosed in the embodiment of the present application;

[0041] Figure 13 It is a schematic three-dimensional structure diagram of the vehicle disclosed in the embodiment of the present application.

[0042] Icons: 100, optical imaging lens; 11, object side (of the first lens); 12, image side (of the first lens); 20, second lens; 21, object side (of the second lens); 22, image side (of the second lens); 30, third lens; 31, object side (of the third lens); 32, image side (of the third lens); 40, fourth lens; 41, object side (of the fourth lens); 42, image side (of the fourth lens); 50, fifth lens; 51, object side (of the fifth lens); 52, image side (of the fifth lens); 60, sixth lens; 61, object side (of the sixth lens); 62, image side (of the sixth lens); 70, seventh lens; 71, object side (of the seventh lens); 72, image side (of the seventh lens); 80, diaphragm; 90, filter; 91, object side (of the filter); 92, image side (of the filter); 101, protective glass; 1011, object side (of the protective glass); 1012, image side (of the protective glass); 102, imaging surface; 200, camera module; 201, housing; 300, electronic device; 301, housing. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0044] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0045] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances.

[0046] In addition, the terms "mounted", "arranged", "provided with", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, components, or parts (the specific types and structures may be the same or different, and are not used to indicate or imply the relative importance and quantity of the indicated devices, components, or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0048] According to an embodiment of the present application, an optical imaging lens is provided. The optical imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged from the object side to the image side. Among them, at least two of the lenses have aspherical surfaces on both the image side and the object side. The first lens has a negative refractive power; the second lens has a negative refractive power, and the object side of the second lens is concave in the near optical axis region; the third lens has a positive refractive power, and the image side of the third lens is convex in the near optical axis region; the fourth lens has a positive refractive power; the fifth lens has a negative refractive power; the sixth lens has a positive refractive power, and both the object side and the image side of the sixth lens are convex in the near optical axis region; the seventh lens has a positive refractive power, and the image side of the seventh lens is concave in the near optical axis region. The optical imaging lens satisfies the conditional formula: -20 < f2 / f < -13, where f2 is the focal length of the second lens and f is the effective focal length of the optical imaging lens.

[0049] In this embodiment, both the first lens and the second lens have negative refractive powers, which can capture the light rays entering the optical imaging lens at large angles, facilitating the expansion of the beam width, and further expanding the field of view angle range of the optical imaging lens. Since the light rays enter through the first lens and the second lens with relatively strong refractive powers, the marginal field light rays are prone to generate large field curvature when entering the imaging surface after being refracted by the first lens and the second lens. In this embodiment, the third lens has a positive refractive power, which is beneficial to correcting the marginal aberration generated by the front lens group in the marginal field, thereby improving the imaging resolution. At the same time, through the interaction between the fourth lens with a positive refractive power and the fifth lens with a negative refractive power, it is beneficial to further correct the aberration generated by the refraction of the light rays through the front lens group, and improve the imaging resolution of the optical imaging lens.

[0050] Finally, the sixth lens and the seventh lens have positive refractive power. With a reasonable surface configuration, the intensity of the positive refractive power provided for the optical imaging lens can be well constrained, thereby effectively correcting chromatic aberration. At the same time, as the last two lenses in the optical imaging lens, they can finally correct the aberration generated by the decentration difference of each lens on the object side, that is, the decentration sensitivity of the optical imaging lens can be reduced, which is beneficial to correcting the aberration of the optical imaging lens and improving the imaging resolution of the optical imaging lens. In addition, through the action of the sixth lens and the seventh lens with positive refractive power, the incident light beam can be focused, which is beneficial to effectively transmitting the image information collected by the optical imaging lens to the high-pixel imaging surface, thereby improving the imaging quality.

[0051] In addition, since the optical imaging lens in this embodiment satisfies the conditional formula -20 < f2 / f < -13. Specifically, the ratio of f2 / f can be, for example, -19.652, -18.715, -14.470, -13.601, etc. When the optical imaging lens satisfies this conditional formula, it is more conducive to correcting aberration and can further improve the imaging quality of the optical forming lens.

[0052] In summary, the optical imaging lens of the present application is beneficial to correcting the aberration of the optical imaging lens, eliminating astigmatism, improving the imaging resolution of the optical imaging lens, and achieving a balance between expanding the field of view angle range and high pixels by setting seven lenses with negative-negative-positive-negative-positive-positive refractive power. When the optical imaging lens in this embodiment is used in the front-view camera of a vehicle, the driving risk can be effectively reduced.

[0053] Optionally, the fourth lens and the fifth lens in this embodiment are glued together to form a glued lens. The glued surface of the glued lens protrudes toward the image side of the optical imaging lens, that is, the glued surface of the glued lens protrudes toward the imaging surface of the optical imaging lens. By gluing the fourth lens and the fifth lens, the cumulative tolerance of the two elements of the fourth lens and the fifth lens can be set as the tolerance of an integrated element, which can reduce the decentration sensitivity of the assembly of multiple lenses, reduce the assembly sensitivity of the optical imaging lens, reduce the lens manufacturing process and the assembly difficulty of the optical imaging lens, and improve the yield rate of the optical imaging lens. At the same time, correcting aberration through the fourth lens and the fifth lens is beneficial to improving the imaging resolution of the optical imaging lens. In addition, the setting of the glued lens is also beneficial to shortening the total length of the optical imaging lens, facilitating the miniaturization design of the optical imaging lens.

[0054] The optical imaging lens in this embodiment further includes a diaphragm, which is disposed between the image side of the third lens and the object side of the fourth lens, facilitating the limitation of the beam or the size of the field of view (imaging range). Of course, in other embodiments of the present application, the diaphragm can also be placed on the object side of the first lens of the optical imaging lens, the image side of the seventh lens, or between two adjacent lenses among the first lens to the seventh lens.

[0055] Further, an infrared filter is provided on the image side or the object side of any one of the first lens to the seventh lens in this embodiment, facilitating the filtering of infrared light so that the light incident on the imaging surface is visible light.

[0056] Optionally, a protective layer is further provided on the image side of the seventh lens in this embodiment. The protective layer can especially be a protective glass, facilitating the protection of the infrared filter and preventing the infrared filter from being scratched or damaged by external structures.

[0057] Further, the optical imaging lens in this embodiment further satisfies the conditional formula: -18.5 < ∑f123 / f < -12.5, where ∑f123 is the sum of the focal lengths of the first lens, the second lens, and the third lens. Specifically, the ratio of ∑f123 / f can be, for example, -18.512, -17.553, -13.493, -12.702, etc. When the conditional formula -18.5 < ∑f123 / f < -12.5 is satisfied, the optical imaging lens has sufficient refractive power to fully contract and intake the light beam carrying the information of the object to be photographed into the diaphragm, which is beneficial to meeting the imaging characteristics of high pixels of the optical imaging lens.

[0058] Further, the optical imaging lens in this embodiment further satisfies the conditional formula: 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| < 40, where Rs61 is the curvature radius of the object side of the sixth lens on the optical axis, and Rs62 is the curvature radius of the image side of the sixth lens on the optical axis. Specifically, the ratio of |Rs61 - Rs62| / |Rs61 + Rs62| can be, for example, 1.512, 1.759, 24.677, 39.741, etc. When the optical imaging lens satisfies the above conditional formula, the shape of the sixth lens can be reasonably configured so that the sixth lens will not be overly bent, which is beneficial to the processing and forming of the sixth lens, and can also reduce the design difficulty and assembly sensitivity of the sixth lens. In addition, in this embodiment, by making 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| < 40, it is beneficial to correct the off-axis field aberration of the optical imaging lens, suppress the generation of astigmatism, and can also reduce the angle at which the chief ray of the peripheral viewing angle enters the imaging surface, thereby improving the imaging quality of the optical imaging lens. When the ratio of |Rs61 - Rs62| / |Rs61 + Rs62| exceeds the range of the above conditional formula, it is not conducive to the correction of aberration of the optical imaging lens.

[0059] Furthermore, the optical imaging lens in this embodiment further satisfies the conditional formula: -27.5 < f45 / f < -13, where f45 is the combined focal length of the fourth lens and the fifth lens. Specifically, the ratio of f45 / f can be, for example, -27.094, -25.101, -21.462, -17.331, -13.541, etc. By providing a fourth lens with positive refractive power and a fifth lens with negative refractive power, the positive and negative lenses can correct the aberrations generated by each other. In addition, the two lenses can also be used to correct the aberrations generated by the refraction of light through the front lenses, improving the resolution of the optical imaging lens. By satisfying the conditional formula -27.5 < f45 / f < -13, the ratio of the combined focal length of the fourth lens and the fifth lens to the effective focal length of the optical imaging lens can be reasonably configured, which is beneficial to improving the field curvature and distortion of the optical imaging lens, reducing the angle of the light emitted from the optical imaging lens after refraction by the lens group, and reducing the incident angle of the light on the photosensitive element on the image side of the optical imaging lens. Thus, the photosensitive performance of the photosensitive element can be improved, and finally the imaging quality of the optical imaging lens can be enhanced.

[0060] Furthermore, the optical imaging lens in this embodiment further satisfies the conditional formula: 51(° / mm) < FOV / EPD < 54(° / mm), where FOV is the maximum field of view angle of the optical imaging lens and EPD is the entrance pupil diameter of the optical imaging lens. Specifically, the ratio of FOV / EPD can be, for example, 51.005(° / mm), 53.219(° / mm), 53.437(° / mm), 53.709(° / mm), 53.818(° / mm), etc. By satisfying the above conditional formula, the light incident amount and the entrance pupil diameter of the optical imaging lens can be controlled, enabling the optical imaging lens to have a large field of view angle range, as well as the effects of a large aperture and a long depth of field. That is to say, by satisfying the above conditional formula, the optical imaging lens can achieve clear imaging at a long distance and a large angle, while also having the ability to clearly recognize nearby scenes.

[0061] Furthermore, the optical imaging lens in this embodiment also satisfies the conditional formula: 1.5<TTL / DOS<2, DOS is the distance from the object side surface of the first lens to the aperture surface on the optical axis, and DOS is the distance from the object side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis. Specifically, the ratio of TTL / DOS can be, for example, 1.779, 1.790, 1.801, 1.823, 1.987, etc. When the optical imaging lens exceeds the lower limit of the conditional formula 1.5<TTL / DOS<2, it is difficult for a large-angle light beam to enter the optical imaging lens, which reduces the imaging range of the object space of the optical imaging lens, and is not conducive to achieving a wide-angle optical imaging lens. When the optical imaging lens exceeds the upper limit of the conditional formula 1.5<TTL / DOS<2, the total optical length of the optical imaging lens is too long, which is not conducive to achieving miniaturization of the optical imaging lens. That is to say, by making the light imaging lens satisfy the conditional formula 1.5<TTL / DOS<2, it is easy to realize the compact and miniaturized design of the optical imaging lens.

[0062] Furthermore, the optical imaging lens in this embodiment also satisfies the conditional formula: 2.5<f6 / f<5.7, where f6 is the focal length of the sixth lens. Specifically, the ratio of f6 / f can be, for example, 2.883, 4.243, 5.581, 5.658, etc. By satisfying the conditional formula 2.5<f6 / f<5.7, the positive focal power of the sixth lens of the optical imaging lens will not become too strong, so that the angle between the normal of the object side and the image side of the sixth lens and the incident light will not become too large, and the occurrence of high-order aberrations can be easily suppressed. When the ratio of f6 / f exceeds the range of the above conditional formula, it is not conducive to the correction of aberrations of the optical imaging lens, thereby reducing the imaging quality.

[0063] Furthermore, the optical imaging lens in this embodiment also satisfies the conditional formula: 3.3<f7 / f<10.5, where f7 is the focal length of the seventh lens. Specifically, the ratio of f7 / f can be, for example, 3.487, 3.785, 4.585, 10.318, etc. Similarly, by satisfying the conditional formula 3.3<f7 / f<10.5, the positive focal power of the seventh lens of the optical imaging lens will not become too strong, so that the angle between the normal of the object side and the image side of the seventh lens and the incident light will not become too large, which can easily further suppress the occurrence of high-order aberrations. When the ratio of f7 / f exceeds the range of the above conditional formula, it is not conducive to the correction of aberrations of the optical imaging lens, thereby reducing the imaging quality.

[0064] In summary, the optical imaging lens of the present application can widen the imaging field of view while ensuring high pixel count. This optical imaging lens not only increases the field of view angle range but also deepens the imaging depth range, enabling it to capture detailed information at relatively long distances and simultaneously capture images within a large angular range. When the optical imaging lens of the present application is used in a vehicle, it can transmit the driving environment at various far and near distances and within a wide range in front more clearly to the system for identification or clearly display it on the vehicle display screen, facilitating the driver to make accurate judgments and avoid accidents; when the optical imaging lens of the present application is used for driving record, it can provide a clear field of view for the driver and ensure safe driving; when the optical imaging lens of the present application is used in the field of surveillance and security, it can also clearly record detailed information, etc., providing corresponding technical support and application guarantee in practical applications.

[0065] The following will be described in detail with reference to the accompanying drawings.

[0066] Embodiment 1

[0067] Please refer to Figure 1 and Figure 2 As shown, according to Embodiment 1 of the present application, an optical imaging lens 100 is provided. The optical imaging lens 100 includes a first lens 10, a second lens 20, a third lens 30, a fourth lens 40, a fifth lens 50, a sixth lens 60, and a seventh lens 70 arranged in sequence from the object side to the image side.

[0068] Among them, the first lens 10 has a negative refractive power. The object side surface 11 of the first lens 10 is convex in the near optical axis region, and the image side surface 12 of the first lens 10 is concave in the near optical axis region;

[0069] The second lens 20 has a negative refractive power. The object side surface 21 of the second lens 20 is concave in the near optical axis region, and the image side surface 22 of the second lens 20 is convex in the near optical axis region;

[0070] The third lens 30 has a positive refractive power. The object side surface 31 of the third lens 30 is convex in the near optical axis region, and the image side surface 32 of the third lens 30 is convex in the near optical axis region;

[0071] The fourth lens 40 has a positive refractive power. The object side surface 41 of the fourth lens 40 is convex in the near optical axis region, and the image side surface 42 of the fourth lens 40 is convex in the near optical axis region;

[0072] The fifth lens 50 has a negative refractive power. The object side surface 51 of the fifth lens 50 is concave in the near optical axis region, and the image side surface 52 of the fifth lens 50 is concave in the near optical axis region;

[0073] The sixth lens 60 has a positive refractive power. The object side surface 61 of the sixth lens 60 is convex in the near optical axis region, and the image side surface 62 of the sixth lens 60 is convex in the near optical axis region;

[0074] The seventh lens 70 has a positive refractive power. The object side surface 71 of the seventh lens 70 is convex in the near optical axis region, and the image side surface 72 of the seventh lens 70 is concave in the near optical axis region.

[0075] In addition, the optical imaging lens 100 further includes a diaphragm 80, an infrared filter 90, a protective glass 101, and an imaging surface 102. Among them, the diaphragm 80 is disposed between the image side surface 32 of the third lens 30 and the object side surface 41 of the fourth lens 40 to control the amount of incident light. The infrared filter 90 is disposed between the image side surface 72 of the seventh lens 70 and the object side surface 1011 of the protective glass 101 to perform filtering processing on infrared light, so that the light incident on the imaging surface 102 is visible light, and the wavelength of the visible light is 380 nm to 780 nm. The protective glass 101 is disposed on the image side surface 92 of the infrared filter 90 to protect the optical imaging lens. The imaging surface 102 is located on the image side surface 1012 of the protective glass 101, and the effective pixel region of the photosensitive element is located on the imaging surface 102.

[0076] The materials of the above-mentioned first lens 10, second lens 20, third lens 30, fourth lens 40, fifth lens 50, sixth lens 60, seventh lens 70, infrared filter 90, and protective glass 101 are all glass. The materials of the lenses of the optical imaging lens 100 are not limited to glass and can also be plastic. For example, the material of the first lens 10 is set to glass, and the materials of the second lens 20, third lens 30, fourth lens 40, fifth lens 50, sixth lens 60, and seventh lens 70 are set to plastic, or other glass-plastic hybrid forms, etc., which can not only improve the optical performance of the optical imaging lens 100, but also improve the strength and service life of the optical imaging lens 100.

[0077] The optical imaging lens 100 in this embodiment satisfies the following conditional expressions:

[0078] -20 < f2 / f = -18.715 < -13;

[0079] -18.5 < ∑f123 / f = -17.533 < -12.5;

[0080] 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| = 39.741 < 40;

[0081] -27.5 < f45 / f = -25.101 < -13;

[0082] 51 (° / mm) < FOV / EPD = 51.005 (° / mm) < 54 (° / mm);

[0083] 1.5 < TTL / DOS = 1.987 < 2;

[0084] 2.5 < f6 / f = 5.581 < 5.7;

[0085] 3.3 < f7 / f = 3.487 < 10.5.

[0086] Among them, the above parameters have been defined previously and will not be elaborated here.

[0087] Table 1 is the characteristic table of the optical imaging lens 100 of this embodiment. Among them, each data is obtained with visible light having a reference wavelength of 546.074 nm. The units of the Y radius, thickness, and focal length are all millimeters (mm).

[0088] Table 1:

[0089]

[0090] Among them, f is the effective focal length of the optical imaging lens 100, FNO is the f-number of the optical imaging lens 100, and FOV is the maximum field of view angle of the optical imaging lens 100.

[0091] In this embodiment, any one of the object side 21 and the image side 22 of the second lens 20, the image side 62 of the sixth lens 60, and the object side 71 and the image side 72 of the seventh lens 70 is an aspherical surface. The surface profile x of each aspherical surface can be defined by, but not limited to, the following aspherical formula:

[0092]

[0093] Among them, x is the sagitta of the distance from the vertex of the aspherical surface when the aspherical surface is along the optical axis at a position with a height of h; c is the paraxial curvature of the aspherical surface, c = 1 / R (that is, the paraxial curvature c is the reciprocal of the Y radius R in Table 1); k is the conic coefficient; Ai is the correction coefficient of the i-th order of the aspherical surface.

[0094] Table 2 gives the higher-order coefficients A4, A6, A8, A10, A12, A14, A15, A17, A18, and A20 that can be used for the object side 21 and the image side 22 of the second lens 20, the image side 62 of the sixth lens 60, and the object side 71 and the image side 72 of the seventh lens 70 in this embodiment.

[0095] Table 2:

[0096] Surface number 21 22 62 71 72 K -2.21E-01 -1.55E-01 -2.17E+00 -1.12E+00 -1.60E+01 A4 1.84E-04 1.76E-05 1.89E-04 -3.96E-04 -1.19E-04 A6 2.61E-06 1.59E-06 1.61E-06 -2.86E-07 -1.10E-06 A8 -2.18E-07 -6.74E-08 1.56E-07 -1.24E-07 -3.29E-08 A10 2.19E-09 3.89E-11 -2.88E-09 -1.38E-09 -1.18E-09 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A18 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A20 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

[0097] Figure 2The longitudinal spherical aberration curve, astigmatism curve, and distortion curve of the optical imaging lens 100 in this embodiment are shown. Among them, the longitudinal spherical aberration curve represents the deviation of the converging points of light rays with wavelengths of 656.2730 nm, 587.5620 nm, 546.0740 nm, 486.1330 nm, and 450.0000 nm after passing through each lens of the optical imaging lens 100; the astigmatism curve represents the meridional image plane curvature T and the sagittal image plane curvature S; the distortion curve represents the distortion magnitude values corresponding to the optical imaging lens 100 at each field angle. According to Figure 2 it can be known that the optical imaging lens 100 given in the first embodiment can achieve good imaging quality.

[0098] Embodiment 2

[0099] Please refer to Figure 3 and Figure 4 As shown, according to the second embodiment of the present application, an optical imaging lens 100 is provided. The structure of the optical imaging lens 100 is the same as that in the first embodiment. The difference is that the optical imaging lens 100 in this embodiment satisfies the following conditional expressions:

[0100] -20 < f2 / f = -19.652 < -13;

[0101] -18.5 < ∑f123 / f = -18.512 < -12.5;

[0102] 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| = 24.677 < 40;

[0103] -27.5 < f45 / f = -27.094 < -13;

[0104] 51 (° / mm) < FOV / EPD = 53.219 (° / mm) < 54 (° / mm);

[0105] 1.5 < TTL / DOS = 1.823 < 2;

[0106] 2.5 < f6 / f = 5.658 < 5.7;

[0107] 3.3 < f7 / f = 3.785 < 10.5.

[0108] Among them, the above parameters have been defined before and will not be elaborated here.

[0109] Table 3 is the characteristic table of the optical imaging lens 100 in this embodiment. Among them, each data is obtained using visible light with a reference wavelength of 546.074 nm. The units of the Y radius, thickness, and focal length are all millimeters (mm).

[0110] Table 3:

[0111]

[0112] Among them, the meanings of the parameters in Table 3 are the same as those in Embodiment 1.

[0113] Table 4 gives the high-order term coefficients available for each aspherical mirror surface in Embodiment 2. Among them, each aspherical surface type can be defined by the formula given in Embodiment 1.

[0114] Table 4:

[0115] Surface number 21 22 62 71 72 K -2.21E-01 -3.55E-01 -2.17E+00 -1.12E+00 -1.60E+01 A4 1.84E-04 1.76E-05 1.89E-04 -3.96E-04 -3.19E-04 A6 3.61E-06 1.59E-06 2.61E-06 -2.86E-07 -3.10E-06 A8 -2.18E-07 -6.74E-08 1.56E-07 -1.24E-07 -1.29E-08 A10 2.19E-09 9.89E-11 -6.88E-09 -1.38E-09 -1.18E-09 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A18 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A20 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

[0116] Figure 4 Shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve diagram of the optical imaging lens 100 in this embodiment. Among them, the longitudinal spherical aberration curve represents the deviation of the convergence points of the light rays with wavelengths of 656.2730 nm, 587.5620 nm, 546.0740 nm, 486.1330 nm, and 450.0000 nm after passing through each lens of the optical imaging lens 100; the astigmatism curve represents the meridional imaging plane curvature T and the sagittal imaging plane curvature S; the distortion curve represents the distortion magnitude values corresponding to the optical imaging lens 100 at each field angle. According to Figure 4 It can be known that the optical imaging lens 100 given in Embodiment 2 can achieve good imaging quality.

[0117] Embodiment 3

[0118] Please refer to Figure 5 and Figure 6 As shown, according to Embodiment 3 of the present application, an optical imaging lens 100 is provided. The structure of the optical imaging lens 100 is the same as that in Embodiment 1. The difference is that the optical imaging lens 100 in this embodiment satisfies the following conditional expressions:

[0119] -20 < f2 / f = -13.601 < -13;

[0120] -18.5 < ∑f123 / f = -12.702 < -12.5;

[0121] 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| = 1.512 < 40;

[0122] -27.5 < f45 / f = -13.542 < -13;

[0123] 51 (° / mm) < FOV / EPD = 53.437 (° / mm) < 54 (° / mm);

[0124] 1.5 < TTL / DOS = 1.801 < 2;

[0125] 2.5 < f6 / f = 4.243 < 5.7;

[0126] 3.3 < f7 / f = 4.585 < 10.5.

[0127] Among them, the above parameters have been defined before, and will not be elaborated here.

[0128] Table 5 is the characteristic table of the optical imaging lens 100 of this embodiment. Among them, each data is obtained by using visible light with a reference wavelength of 546.074 nm. The units of the Y radius, thickness, and focal length are all millimeters (mm).

[0129] Table 5:

[0130]

[0131] Among them, the meanings of the parameters in Table 5 are the same as those of the parameters in Embodiment 1.

[0132] Table 6 gives the high-order term coefficients of the aspherical mirrors that can be used in Embodiment 3. Among them, each aspherical surface type can be defined by the formula given in Embodiment 1.

[0133] Table 6:

[0134]

[0135]

[0136] Figure 6 Shows the longitudinal spherical aberration curve, astigmatism curve, and distortion curve of the optical imaging lens 100 in this embodiment. Among them, the longitudinal spherical aberration curve represents the deviation of the convergence points of the light rays with wavelengths of 656.2730 nm, 587.5620 nm, 546.0740 nm, 486.1330 nm, and 450.0000 nm after passing through each lens of the optical imaging lens 100; the astigmatism curve represents the meridional imaging plane curvature T and the sagittal imaging plane curvature S; the distortion curve represents the corresponding distortion magnitude values of the optical imaging lens 100 at each field angle. According to Figure 6 It can be seen that the optical imaging lens 100 given in Embodiment 3 can achieve good imaging quality.

[0137] Embodiment 4

[0138] Please refer to Figure 7 and Figure 8 As shown, according to Embodiment 4 of the present application, an optical imaging lens 100 is provided. The structure of the optical imaging lens 100 is the same as that in Embodiment 1. The difference is that the optical imaging lens 100 in this embodiment satisfies the following conditional formula:

[0139] -20 < f2 / f = -13.601 < -13;

[0140] -18.5 < ∑f123 / f = -12.702 < -12.5;

[0141] 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| = 1.512 < 40;

[0142] -27.5 < f45 / f = -21.462 < -13;

[0143] 51 (° / mm) < FOV / EPD = 53.818 (° / mm) < 54 (° / mm);

[0144] 1.5 < TTL / DOS = 1.790 < 2;

[0145] 2.5 < f6 / f = 4.243 < 5.7;

[0146] 3.3 < f7 / f = 4.585 < 10.5.

[0147] Among them, the above parameters have been defined before and will not be elaborated here.

[0148] Table 7 is the characteristic table of the optical imaging lens 100 of this embodiment. Among them, each data is obtained with visible light having a reference wavelength of 546.074 nm. The units of the Y radius, thickness, and focal length are all millimeters (mm).

[0149] Table 7:

[0150]

[0151]

[0152] Among them, the meanings of the parameters in Table 7 are the same as those of the parameters in Embodiment 1.

[0153] Table 8 gives the high-order term coefficients available for each aspherical mirror surface in Embodiment 4. Among them, each aspherical surface type can be defined by the formula given in Embodiment 1.

[0154] Table 8:

[0155] Surface number 21 22 62 71 72 K -1.02E-01 -6.40E-01 -4.90E+00 -3.89E+00 2.57E+01 A4 2.01E-05 1.19E-04 -4.89E-04 -3.80E-04 -1.34E-03 A6 7.77E-06 2.70E-06 5.68E-05 3.44E-05 -1.34E-05 A8 1.82E-07 2.51E-08 -2.66E-06 -2.48E-06 2.28E-07 A10 -3.35E-09 -1.14E-09 3.03E-08 4.49E-08 1.48E-08 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A18 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A20 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

[0156] Figure 8The longitudinal spherical aberration curve, astigmatism curve, and distortion curve of the optical imaging lens 100 in this embodiment are shown. Among them, the longitudinal spherical aberration curve represents the deviation of the converging points of light rays with wavelengths of 656.2730 nm, 587.5620 nm, 546.0740 nm, 486.1330 nm, and 450.0000 nm after passing through each lens of the optical imaging lens 100; the astigmatism curve represents the meridional image plane curvature T and the sagittal image plane curvature S; the distortion curve represents the distortion magnitude values corresponding to the optical imaging lens 100 at each field angle. According to Figure 8 it can be known that the optical imaging lens 100 given in the fourth embodiment can achieve good imaging quality.

[0157] Embodiment Five

[0158] Please refer to Figure 9 and Figure 10 As shown, according to the fifth embodiment of the present application, an optical imaging lens 100 is provided. The structure of the optical imaging lens 100 is the same as that in the first embodiment. The difference is that the optical imaging lens 100 in this embodiment satisfies the following conditional expressions:

[0159] -20 < f2 / f = -14.470 < -13;

[0160] -18.5 < ∑f123 / f = -13.493 < -12.5;

[0161] 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| = 1.759 < 40;

[0162] -27.5 < f45 / f = -17.331 < -13;

[0163] 51 (° / mm) < FOV / EPD = 53.709 (° / mm) < 54 (° / mm);

[0164] 1.5 < TTL / DOS = 1.779 < 2;

[0165] 2.5 < f6 / f = 2.883 < 5.7;

[0166] 3.3 < f7 / f = 10.318 < 10.5.

[0167] Among them, the above parameters have been defined before and will not be elaborated here.

[0168] Table 9 is the characteristic table of the optical imaging lens 100 in this embodiment. Among them, each data is obtained using visible light with a reference wavelength of 546.074 nm. The units of the Y radius, thickness, and focal length are all millimeters (mm).

[0169] Table 9:

[0170]

[0171]

[0172] Among them, the meanings of the parameters in Table 9 are the same as those in Embodiment 1.

[0173] Table 10 gives the high-order term coefficients of the aspherical mirrors in Embodiment 5. Among them, each aspherical surface type can be defined by the formula given in Embodiment 1.

[0174] Table 10:

[0175] Surface number 21 22 71 72 K -4.30E-01 -3.72E-01 2.14E+00 -1.63E+00 A4 -3.22E-06 3.86E-05 -6.67E-03 -1.17E-03 A6 2.70E-06 2.58E-06 -2.00E-05 -3.98E-05 A8 -3.64E-07 -1.07E-08 -4.05E-06 1.50E-06 A10 1.12E-08 1.62E-09 6.41E-08 4.04E-09 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A18 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A20 0.00E+00 0.00E+00 0.00E+00 0.00E+00

[0176] Figure 10 Shows the longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging lens 100 in this embodiment. Among them, the longitudinal spherical aberration curve represents the deviation of the converging points of the light rays with wavelengths of 656.2730 nm, 587.5620 nm, 546.0740 nm, 486.1330 nm, and 450.0000 nm after passing through each lens of the optical imaging lens 100; the astigmatism curve represents the meridional image plane curvature T and the sagittal image plane curvature S; the distortion curve represents the distortion magnitude values corresponding to the optical imaging lens 100 at each field angle. According to Figure 10 It can be seen that the optical imaging lens 100 given in Embodiment 5 can achieve good imaging quality.

[0177] According to another aspect of the present application, referring to Figure 11 As shown, the present application also provides an imaging module 200, which includes a housing 201, a photosensitive element (not shown in the figure), and an optical imaging lens 100. Among them, the optical imaging lens 100 and the photosensitive element are both arranged in the housing 201, the photosensitive element is arranged on the image side of the optical imaging lens 100, and the optical imaging lens 100 is the optical imaging lens described above. It can be understood that the imaging module in this embodiment has the optical imaging lens described above. Therefore, the imaging module in this embodiment has all the beneficial effects of the optical imaging lens described above. Since the beneficial effects of the optical imaging lens have been fully described above, they will not be repeated here.

[0178] According to the third aspect of the present application, referring to Figure 12As shown in the figure, the present application provides an electronic device 300, which can be, for example, a mobile phone, a tablet computer, a smartwatch, a security camera, a vehicle-mounted camera, etc. The electronic device includes an imaging module 200 and a housing 301, and the imaging module 200 is disposed in the housing 301. It can be understood that the electronic device 300 in this embodiment has the imaging module 200 and the optical imaging lens described above. Therefore, the electronic device 300 in this embodiment has all the beneficial effects of the imaging module 200 and the optical imaging lens described above. Since the beneficial effects of the optical imaging lens have been fully described above, they will not be repeated here.

[0179] According to the fourth aspect of the present application, refer to Figure 13 As shown in the figure, the present application provides a vehicle 400, which includes a mounting portion 401 and an electronic device 300. The electronic device 300 is disposed on the mounting portion 401, and the mounting portion 401 can be, for example, a fixed platform or other structures. It can be understood that the vehicle 400 in this embodiment has the electronic device 300 described above. Therefore, the vehicle 400 in this embodiment has all the beneficial effects of the electronic device 300 and the optical imaging lens described above. Since the beneficial effects of the optical imaging lens have been fully described above, they will not be repeated here. At the same time, when the above-mentioned electronic device 300 is used in a vehicle, the driving risk can be reduced.

[0180] The above has introduced in detail an optical imaging lens, an imaging module, an electronic device and a vehicle disclosed in the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand an optical imaging lens, an imaging module, an electronic device and a vehicle of the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An optical imaging lens, characterized in that, The optical imaging lens has a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged from the object side to the image side; The first lens has a negative refractive power; The second lens has a negative refractive power, and the object side surface of the second lens is concave in the near optical axis region; The third lens has a positive refractive power, and the image side surface of the third lens is convex in the near optical axis region; The fourth lens has a positive refractive power, the object side surface of the fourth lens is convex at the near optical axis, and the image side surface of the fourth lens is convex at the near optical axis; The fifth lens has a negative refractive power, the object side surface of the fifth lens is concave at the near optical axis, and the image side surface of the fifth lens is concave at the near optical axis; The sixth lens has a positive refractive power, and both the object side surface and the image side surface of the sixth lens are convex in the near optical axis region; The seventh lens has a positive refractive power, and the image side surface of the seventh lens is concave in the near optical axis region; Wherein, the optical imaging lens satisfies the conditional formula: -20 < f2 / f < -13, f2 is the focal length of the second lens, and f is the effective focal length of the optical imaging lens; The optical imaging lens also satisfies the conditional formula: -27.5 < f45 / f < -13, f45 is the combined focal length of the fourth lens and the fifth lens; The optical imaging lens further includes a diaphragm, and the optical imaging lens also satisfies the conditional formula: 1.5 < TTL / DOS < 2, DOS is the distance on the optical axis from the object side surface of the first lens to the surface of the diaphragm, and TTL is the distance on the optical axis from the object side surface of the first lens to the imaging surface of the optical imaging lens.

2. The optical imaging lens according to claim 1, wherein, The optical imaging lens also satisfies the conditional formula: -18.5 < ∑f123 / f < -12.5, ∑f123 is the sum of the focal lengths of the first lens, the second lens, and the third lens.

3. The optical imaging lens according to claim 1, characterized in that, The optical imaging lens also satisfies the conditional formula: 1.5 < |Rs61 - Rs62| / |Rs61 + Rs62| < 40, Rs61 is the radius of curvature of the object side surface of the sixth lens at the optical axis, and Rs62 is the radius of curvature of the image side surface of the sixth lens at the optical axis.

4. The optical imaging lens according to claim 1, wherein, The object side surface of the first lens is convex in the near optical axis region, and the image side surface of the first lens is concave in the near optical axis region; the image side surface of the second lens is convex in the near optical axis region; the object side surface of the third lens is convex in the near optical axis region; the object side surface of the seventh lens is convex in the near optical axis region.

5. The optical imaging lens according to claim 1, characterized in that, The optical imaging lens also satisfies the conditional formula: 51(° / mm) < FOV / EPD < 54(° / mm), FOV is the maximum field of view angle of the optical imaging lens, and EPD is the entrance pupil diameter of the optical imaging lens.

6. The optical imaging lens according to claim 1, wherein The diaphragm is disposed on the object side of the first lens or between any two adjacent lenses among the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens.

7. The optical imaging lens according to claim 1, wherein The optical imaging lens also satisfies the conditional formula: 2.5 < f6 / f < 5.7, f6 is the focal length of the sixth lens.

8. The optical imaging lens according to claim 1, characterized in that, The optical imaging lens further satisfies the conditional formula: 3.3 < f7 / f < 10.5, where f7 is the focal length of the seventh lens.

9. The optical imaging lens according to any one of claims 1 to 8, characterized in that, At least two of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens have aspherical surfaces on both the image side and the object side.

10. The optical imaging lens according to any one of claims 1 to 8, characterized in that, The fourth lens and the fifth lens are cemented together to form a cemented lens, and the cemented surface of the cemented lens bulges toward the image side of the optical imaging lens.

11. An imaging module, characterized in that, The imaging module includes a housing, a photosensitive element, and an optical imaging lens according to any one of claims 1 to 10. The photosensitive element and the optical imaging lens are both disposed in the housing, and the photosensitive element is disposed on the image side of the optical imaging lens.

12. An electronic device, characterized in that, The electronic device includes a housing and an imaging module according to claim 11, and the imaging module is disposed in the housing.

13. A vehicle, characterized in that, The vehicle includes a mounting portion and an electronic device according to claim 12, and the electronic device is disposed in the mounting portion.

Images