Optical imaging lenses, camera modules and electronic equipment

Abstract

The present invention relates to the field of optical imaging technology, and specifically discloses an optical imaging lens, a camera module and an electronic device. The optical imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence from the object side to the image side, wherein the optical imaging lens satisfies the conditional formula: 1<f3456 / f<4, f3456 is the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens, and f is the effective focal length of the optical imaging lens. The optical imaging lens of the present invention is conducive to correcting aberrations such as chromatic aberration and field curvature of the optical imaging lens by setting six lenses with refractive power, can slow down the light deflection angle, reduce the design and assembly sensitivity of each lens, and can meet the needs of miniaturization, lightweight and high-definition imaging quality of the optical imaging lens.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging technology, and in particular to an optical imaging lens, a camera module and an electronic device. Background Art

[0002] With the continuous development of mobile phone manufacturing technology, in order to meet the photography needs of the majority of users, the pixel of mobile phone cameras has also increased year by year. As an important part of smartphone manufacturing technology, mobile phone lenses are also developing rapidly at the same time. In recent years, there has been a trend of a single mobile phone being equipped with multiple camera lenses with different functions.

[0003] In addition, with the advancement of semiconductor engineering technology, the pixel size of photosensitive elements has gradually decreased, so the number of pixels in the same size photosensitive element has also increased, which makes it possible to achieve higher-definition shooting effects under the same size space conditions. Therefore, in order to adapt to the trend of increasingly smaller thickness and volume of applications such as mobile phones, tablets, smart watches, security cameras, and car cameras equipped with multiple camera lenses, the lens also faces huge challenges of miniaturization, lightweight, and high-definition imaging quality. The current optical imaging lens is difficult to meet the needs of miniaturization, lightweight, and high-definition imaging quality. Summary of the invention

[0004] The present invention discloses an optical imaging lens, a camera module and an electronic device. The optical imaging lens can meet the requirements of miniaturization, lightness and high definition imaging quality.

[0005] In order to achieve the above-mentioned object, an embodiment of the present invention discloses an optical imaging lens, wherein the optical imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence from the object side to the image side;

[0006] The first lens has positive refractive power, the object side surface of the first lens is convex at the near optical axis, and the image side surface of the first lens is convex at the near optical axis;

[0007] The second lens has negative refractive power, the object side surface of the first lens is convex at the near optical axis, and the image side surface of the second lens is concave at the near optical axis;

[0008] The third lens has refractive power, and the object side surface of the third lens is convex at the near optical axis;

[0009] The fourth lens has positive refractive power, the object side surface of the fourth lens is concave at the near optical axis, and the image side surface of the fourth lens is convex at the near optical axis;

[0010] The fifth lens has positive refractive power, and the image side surface of the fifth lens is convex at the near optical axis;

[0011] The sixth lens has negative refractive power, the image side surface of the sixth lens is concave at the near optical axis, at least one of the object side surface of the sixth lens and the image side surface of the sixth lens is aspherical, and at least one of the object side surface of the sixth lens and the image side surface of the sixth lens is provided with at least one inflection point;

[0012] Among them, the optical imaging lens satisfies the condition: 1<f3456 / f<4, f3456 is the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens, and f is the effective focal length of the optical imaging lens.

[0013] By satisfying the conditional formula 1<f3456 / f<4, the ratio of the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens to the effective focal length of the optical imaging lens can be reasonably configured, which is conducive to correcting the chromatic aberration and field curvature of the optical imaging lens, and can slow down the deflection of light, reduce the angle of light deflection, reduce the design and assembly sensitivity of each lens, and thus reduce the molding difficulty of the optical imaging lens. When f3456 / f>4, the positive focal length of the third lens, the fourth lens, the fifth lens and the sixth lens together contribute to the entire optical imaging lens is too large, which is easy to cause excessive light deflection, and is not conducive to aberration correction, and finally leads to reduced imaging quality.

[0014] That is to say, the optical imaging lens of the present invention is beneficial to correcting aberrations such as chromatic aberration and field curvature of the optical imaging lens by disposing six lenses with refractive power, can reduce the angle of light deflection, and reduce the design and assembly sensitivity of each lens, thereby meeting the requirements of miniaturization, lightweight and high-definition imaging quality of the optical imaging lens.

[0015] As an optional implementation, in an embodiment of the present invention, the optical imaging lens also satisfies the conditional formula: 1.25<TTL / ImgH<1.7, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and ImgH is half of the image height corresponding to the maximum field of view of the optical imaging lens. When the above conditional formula is met, it is beneficial for the optical imaging lens to achieve a larger imaging surface, improve the shooting effect, and at the same time achieve a lightweight design of the optical imaging lens. When TTL / ImgH>1.7, the total length of the optical imaging lens is too large, which is not conducive to achieving the ultra-thin characteristics of the optical imaging lens.

[0016] As an optional implementation, in an embodiment of the present invention, the optical imaging lens also satisfies the conditional formula: 0.5<f12 / f3456<3, where f12 is the combined focal length of the first lens and the second lens. When the above conditional formula is met, the ratio of the combined focal length of the first lens and the second lens to the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens can be reasonably configured, which is beneficial to ensure that the design and assembly sensitivity of each lens are in a balanced state, and can also reduce the total length of the optical imaging lens. When f12 / f3456>3, the positive focal length allocated to the combined lens composed of the first lens and the second lens is too large, which is not conducive to correcting the aberration of the optical imaging lens.

[0017] As an optional implementation, in an embodiment of the present invention, the optical imaging lens also satisfies the conditional formula: 1.2<f12 / f<3.5, where f12 is the combined focal length of the first lens and the second lens. When the above conditional formula is met, the ratio of the combined focal length of the first lens and the second 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 difficulty of lens molding and processing, and also beneficial to reducing the overall length of the optical imaging lens. When f12 / f<1.2, the positive focal power provided to the combined lens composed of the first lens and the second lens is insufficient, which is not conducive to the aberration correction of the optical imaging lens.

[0018] As an optional implementation, in an embodiment of the present invention, the optical imaging lens further satisfies the condition: Fno / ImgH<0.45mm -1 , Fno is the aperture number of the optical imaging lens, and ImgH is half of the image height corresponding to the maximum field angle of the optical imaging lens. By controlling the ratio of the aperture value and the image height of the optical imaging lens to be less than 0.45mm -1 , which can make the optical imaging lens have a large image surface and a large aperture at the same time.

[0019] As an optional implementation, in an embodiment of the present invention, the optical imaging lens further satisfies the conditional formula: 3.5<TTL / ∑AT<5.5, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, ∑AT is the sum of the intervals between two adjacent lenses on the optical axis among the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens. When the above conditions are met, the ratio of the total length of the optical imaging lens to the sum of the intervals between adjacent lenses on the optical axis can be reasonably configured, which is conducive to reducing the spacing between adjacent lenses on the optical axis within the processable range, thereby reducing the total length of the optical imaging lens and realizing the ultra-thin characteristics of the optical imaging lens. When TTL / ∑AT<3.5, the spacing between two adjacent lenses on the optical axis is too large, thereby increasing the total length of the optical imaging lens, which is not conducive to thinness; when TTL / ∑AT>5.5, the spacing between two adjacent lenses on the optical axis is too small, which is not conducive to the assembly of the lens and also increases the difficulty of processing.

[0020] As an optional implementation, in an embodiment of the present invention, the optical imaging lens further satisfies the conditional formula: 0<(R51+R52) / (R51-R52)<3, R51 is the radius of curvature of the object side surface of the fifth lens at the optical axis, and R52 is the radius of curvature of the image side surface of the fifth lens at the optical axis. When the above conditional formula is met, the shape of the fifth lens can be reasonably configured so that the fifth lens will not be excessively bent, which is beneficial to the actual processing and molding of the fifth lens and reduces the design and assembly sensitivity of the fifth lens.

[0021] As an optional implementation, in an embodiment of the present invention, the optical imaging lens further satisfies the conditional formula: 2<R61 / CT6<6, R61 is the radius of curvature of the image side surface of the sixth lens at the optical axis, and CT6 is the thickness of the sixth lens on the optical axis. The sixth lens of the present invention provides a positive refractive power. By satisfying the above conditional formula, the shape and thickness of the sixth lens can be reasonably balanced, and the excessive bending of the sixth lens can be effectively avoided, which is conducive to the processing and molding of the sixth lens and the assembly of the optical imaging lens. It can also effectively avoid the sixth lens from being too thick, which is conducive to the thin and light design of the sixth lens and the optical imaging lens.

[0022] As an optional implementation, in an embodiment of the present invention, the optical imaging lens also satisfies the condition: ImgH>4.5mm, where ImgH is half of the image height corresponding to the maximum field angle of the optical imaging lens. ImgH is the maximum imaging circle radius of the optical imaging lens, which determines the size of the electronic photosensitive chip. The larger the ImgH, the larger the maximum electronic photosensitive chip size that can be supported, thereby achieving large image plane and high pixel photography. If ImgH is lower than 4.5mm, it becomes difficult to increase the pixel of the optical imaging lens.

[0023] In a second aspect, an embodiment of the present invention further discloses a camera module, which includes a photosensitive element and the above-mentioned optical imaging lens, wherein the photosensitive element is arranged on the image side of the optical imaging lens.

[0024] In a third aspect, an embodiment of the present invention further discloses an electronic device, which includes the above-mentioned camera module.

[0025] Compared with the prior art, the optical imaging lens, camera module and electronic device of the present invention have at least the following beneficial effects:

[0026] The present invention can reasonably configure the ratio of the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens to the effective focal length of the optical imaging lens by making the optical imaging lens satisfy the conditional formula 1<f3456 / f<4, which is conducive to correcting the chromatic aberration and field curvature of the optical imaging lens, and can slow down the light deflection angle, reduce the design and assembly sensitivity of each lens, and reduce the difficulty of forming the optical imaging lens. When f3456 / f>4, the positive focal length of the third lens, the fourth lens, the fifth lens and the sixth lens together contribute to the entire optical imaging lens too much, which is easy to cause excessive light deflection, and is not conducive to aberration correction, and finally leads to reduced imaging quality. The optical imaging lens of the present invention is conducive to correcting the aberrations such as chromatic aberration and field curvature of the optical imaging lens by setting six lenses with refractive power, can slow down the light deflection, reduce the light deflection angle, reduce the design and assembly sensitivity of each lens, and meet the needs of miniaturization, lightweight and high-definition imaging quality of the optical imaging lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a schematic structural diagram of an optical imaging lens disclosed in Embodiment 1 of the present invention;

[0029] Figure 2 is a longitudinal spherical aberration curve, an astigmatism curve and a distortion curve diagram of the optical imaging lens disclosed in the first embodiment of the present invention;

[0030] Figure 3 is a schematic structural diagram of an optical imaging lens disclosed in Embodiment 2 of the present invention;

[0031] Figure 4is a longitudinal spherical aberration curve, an astigmatism curve and a distortion curve diagram of the optical imaging lens disclosed in the second embodiment of the present invention;

[0032] Figure 5 is a schematic structural diagram of an optical imaging lens disclosed in Embodiment 3 of the present invention;

[0033] Figure 6 is a longitudinal spherical aberration curve, an astigmatism curve and a distortion curve diagram of the optical imaging lens disclosed in the third embodiment of the present invention;

[0034] Figure 7 is a schematic structural diagram of an optical imaging lens disclosed in Embodiment 4 of the present invention;

[0035] Figure 8 is a longitudinal spherical aberration curve, an astigmatism curve and a distortion curve diagram of the optical imaging lens disclosed in the fourth embodiment of the present invention;

[0036] Fig. 9 is a schematic structural diagram of an optical imaging lens disclosed in Embodiment 5 of the present invention;

[0037] Fig.10 is a longitudinal spherical aberration curve, an astigmatism curve and a distortion curve diagram of the optical imaging lens disclosed in Embodiment 5 of the present invention;

[0038] Fig.11 is a schematic diagram of the three-dimensional structure of a camera module disclosed in an embodiment of the present invention;

[0039] Fig.12 It is a front view of the electronic device disclosed in the embodiment of the present invention.

[0040] Icon: 100, optical imaging lens; 10, first 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, infrared filter; 71, object side (of the infrared filter); 72, image side (of the infrared filter); 80, aperture; 90, imaging surface; 200, camera module; 201, housing; 300, electronic equipment; 301, casing. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0042] In the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0043] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (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, elements or components. Unless otherwise specified, "plurality" means two or more.

[0046] The optical imaging lens of the present invention comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from the object side to the image side.

[0047] Among them, the first lens has positive refractive power, the object side surface of the first lens is convex at the near optical axis, and the image side surface of the first lens is convex at the near optical axis; the second lens has negative refractive power, the object side surface of the first lens is convex at the near optical axis, and the image side surface of the second lens is concave at the near optical axis; the third lens has refractive power, and the object side surface of the third lens is convex at the near optical axis; the fourth lens has positive refractive power, the object side surface of the fourth lens is concave 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 positive refractive power, and the image side surface of the fifth lens is convex at the near optical axis; the sixth lens has negative refractive power, and the image side surface of the sixth lens is concave at the near optical axis, and at least one of the object side surface of the sixth lens and the image side surface of the sixth lens is aspherical, and at least one of the object side surface of the sixth lens and the image side surface of the sixth lens is provided with at least one inflection point. In addition, the optical imaging lens of the present invention satisfies the conditional formula: 1<f3456 / f<4, the ratio of f3456 / f can be, for example, 1.007, 1.434, 2.200, 2.978, 3.069, etc., f3456 is the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens, and f is the effective focal length of the optical imaging lens.

[0048] By making the optical imaging lens satisfy the conditional formula 1<f3456 / f<4, the ratio of the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens to the effective focal length of the optical imaging lens can be reasonably configured, which is conducive to correcting the chromatic aberration and field curvature of the optical imaging lens, and can slow down the deflection of light, reduce the angle of light deflection, reduce the design and assembly sensitivity of each lens, and thus reduce the molding difficulty of the optical imaging lens. When f3456 / f>4, the positive focal length of the third lens, the fourth lens, the fifth lens and the sixth lens together contribute to the entire optical imaging lens is too large, which is easy to cause excessive deflection of light, and is not conducive to aberration correction, and finally leads to reduced imaging quality.

[0049] That is to say, the optical imaging lens of the present invention is beneficial to correcting aberrations such as chromatic aberration and field curvature of the optical imaging lens by disposing six lenses with refractive power, which can slow down the deflection of light, reduce the angle of light deflection, and reduce the design and assembly sensitivity of each lens, thereby meeting the requirements of miniaturization, lightweight and high-definition imaging quality of the optical imaging lens.

[0050] The optical imaging lens of the present invention further includes an aperture, which can be placed on the object side of the first lens, the image side of the sixth lens, or between two adjacent lenses from the first lens to the sixth lens, so as to facilitate the adjustment and limitation of the size of the light beam or the field of view (imaging range).

[0051] Furthermore, an infrared filter is disposed between the image side surface of the sixth lens and the imaging surface of the optical imaging lens in the present invention, so as to filter the infrared light so that the light incident on the imaging surface is visible light. In other embodiments of the present invention, an infrared filter film may be disposed on the image side surface or the object side surface of any lens from the first lens to the sixth lens, so as to filter the infrared light so that the light incident on the imaging surface is visible light.

[0052] Furthermore, the optical imaging lens of the present invention also satisfies the conditional formula: 1.25<TTL / ImgH<1.7, and the ratio of TTL / ImgH can be, for example, 1.296, 1.328, 1.577, 1.620, and 1.663. Among them, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and ImgH is half of the image height corresponding to the maximum field angle of the optical imaging lens. When the above conditional formula is met, it is beneficial for the optical imaging lens to achieve a larger imaging surface, improve the shooting effect, and at the same time achieve a lightweight design of the optical imaging lens. When TTL / ImgH>1.7, the total length of the optical imaging lens is too large, which is not conducive to achieving the ultra-thin characteristics of the optical imaging lens.

[0053] Furthermore, the optical imaging lens of the present invention also satisfies the conditional formula: 0.5<f12 / f3456<3, and the ratio of f12 / f3456 can be, for example, 0.510, 0.521, 0.786, 0.886 or 2.483. Among them, f12 is the combined focal length of the first lens and the second lens, and f3456 is the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens. When the optical imaging lens satisfies the above conditional formula, the ratio of the combined focal length of the first lens and the second lens to the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens can be reasonably configured, which is beneficial to ensure that the design and assembly sensitivity of each lens are in a balanced state, and can also reduce the total length of the optical imaging lens. When f12 / f3456>3, the positive focal length allocated to the combined lens composed of the first lens and the second lens is too large, which is not conducive to correcting the aberration of the optical imaging lens.

[0054] Furthermore, the optical imaging lens of the present invention also satisfies the conditional formula: 1.2<f12 / f<3.5, and the ratio of f12 / f can be, for example, 1.270, 1.518, 1.597, 1.728 and 3.277. Among them, f12 is the combined focal length of the first lens and the second lens, and f is the effective focal length of the optical imaging lens. When the optical imaging lens satisfies the above conditional formula, the ratio of the combined focal length of the first lens and the second 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 difficulty of lens molding and processing, and also beneficial to reducing the overall length of the optical imaging lens. When f12 / f<1.2, the positive focal power provided to the combined lens composed of the first lens and the second lens is insufficient, which is not conducive to aberration correction.

[0055] Furthermore, the optical imaging lens of the present invention also satisfies the condition: Fno / ImgH<0.45mm -1 , the ratio of Fno / ImgH can be, for example, 0.389 mm -1 , 0.402mm -1 Etc. Among them, Fno is the aperture number of the optical imaging lens, and ImgH is half of the image height corresponding to the maximum field angle of the optical imaging lens. By controlling the ratio of the aperture value and image height of the optical imaging lens to be less than 0.45mm -1 , which can make the optical imaging lens have a large image surface and a large aperture at the same time.

[0056] Furthermore, the optical imaging lens of the present invention also satisfies the conditional formula: 3.5<TTL / ∑AT<5.5, and the ratio of TTL / ∑AT can be, for example, 3.568, 4.054, 4.294, 4.298 and 5.175. Wherein, TTL is the distance from the object side of the first lens to the imaging surface of the optical imaging lens on the optical axis, and ∑AT is the sum of the intervals between two adjacent lenses of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens on the optical axis. When the above conditions are met, the ratio of the total length of the optical imaging lens to the sum of the intervals between adjacent lenses on the optical axis can be reasonably configured, which is conducive to reducing the spacing between adjacent lenses on the optical axis within the processable range, thereby reducing the total length of the optical imaging lens and realizing the ultra-thin characteristics of the optical imaging lens. When TTL / ∑AT<3.5, the spacing between two adjacent lenses on the optical axis is too large, and when TTL / ∑AT>5.5, the spacing between two adjacent lenses on the optical axis is too small, which is not conducive to the assembly of the lens and will also increase the difficulty of processing.

[0057] Furthermore, the optical imaging lens of the present invention also satisfies the conditional formula: 0<(R51+R52) / (R51-R52)<3, and the ratio of (R51+R52) / (R51-R52) can be, for example, 0.548, 1.002, 1.018, 1.134, and 2.924. Among them, R51 is the radius of curvature of the object side surface of the fifth lens at the optical axis, and R52 is the radius of curvature of the image side surface of the fifth lens at the optical axis. When the optical imaging lens satisfies the above conditional formula, the shape of the fifth lens can be reasonably configured so that the fifth lens will not be excessively bent, which is beneficial to the actual processing and molding of the fifth lens and reduces the design and assembly sensitivity of the fifth lens.

[0058] Furthermore, the optical imaging lens of the present invention also satisfies the conditional formula: 2<R61 / CT6<6, and the ratio of R61 / CT6 can be, for example, 2.334, 3.241, 3.117, 4.183, and 5.080. Among them, R61 is the radius of curvature of the image side surface of the sixth lens at the optical axis, and CT6 is the thickness of the sixth lens on the optical axis. The sixth lens of the present invention provides a positive refractive power. By satisfying the above conditional formula, the shape and thickness of the sixth lens can be reasonably balanced, and the excessive bending of the sixth lens can be effectively avoided, which is conducive to the processing and molding of the sixth lens and the assembly of the optical imaging lens. It can also effectively avoid the sixth lens from being too thick, which is conducive to the thin and light design of the sixth lens and the optical imaging lens.

[0059] Furthermore, the optical imaging lens of the present invention also satisfies the conditional formula: ImgH>4.5mm, ImgH can be, for example, 4.630mm, wherein ImgH is half of the image height corresponding to the maximum field angle of the optical imaging lens. ImgH is the maximum imaging circle radius of the optical imaging lens, which determines the size of the electronic photosensitive chip. The larger the ImgH, the larger the maximum electronic photosensitive chip size that can be supported, so that the optical imaging lens can achieve large image plane and high pixel photography. If ImgH is lower than 4.5mm, it becomes difficult to increase the pixel of the optical imaging lens.

[0060] In summary, the optical imaging lens of the present invention is configured with a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens having optical power, which is beneficial to correcting aberrations such as chromatic aberration and field curvature of the optical imaging lens, can reduce the light deflection angle, reduce the design and assembly sensitivity of each lens, and meet the requirements of miniaturization, lightness and high definition of the optical imaging lens.

[0061] The following is a detailed description with reference to the accompanying drawings.

[0062] Embodiment 1

[0063] See also Figure 1 and Figure 2As shown, according to Embodiment 1 of the present invention, an optical imaging lens is provided, which includes a first lens 10, a second lens 20, a third lens 30, a fourth lens 40, a fifth lens 50, and a sixth lens 60 which are sequentially arranged from the object side to the image side.

[0064] The first lens 10 has positive refractive power, the object side surface 11 of the first lens 10 is convex at the near optical axis, and the image side surface 12 of the first lens 10 is convex at the near optical axis;

[0065] The second lens 20 has negative refractive power, an object-side surface 21 of the second lens 20 is convex at the near optical axis, and an image-side surface 22 of the second lens 20 is concave at the near optical axis;

[0066] The third lens 30 has negative refractive power, an object-side surface 31 of the third lens 30 is convex at the near optical axis, and an image-side surface 32 of the third lens 30 is concave at the near optical axis;

[0067] The fourth lens element 40 has positive refractive power, an object-side surface 41 of the fourth lens element 40 is a concave surface near the optical axis, and an image-side surface 42 of the fourth lens element 40 is a convex surface near the optical axis;

[0068] The fifth lens element 50 has positive refractive power, an object-side surface 51 of the fifth lens element 50 is a concave surface near the optical axis, and an image-side surface 52 of the fifth lens element 50 is a convex surface near the optical axis;

[0069] The sixth lens element 60 has negative refractive power. The object-side surface 61 of the sixth lens element 60 is concave near the optical axis. The image-side surface 62 of the sixth lens element 60 is concave near the optical axis.

[0070] In addition, the optical imaging lens also includes an aperture 80, an infrared filter 70 and an imaging surface 90, wherein the aperture 80 can be set on the object side of the first lens 10 to control the amount of light entering. The aperture 80 can also be set on the image side 62 of the sixth lens 60 and any position between the first lens 10 to the sixth lens 60. The infrared filter 70 is set between the image side 62 of the sixth lens 60 and the imaging surface 90 to facilitate the filtering of infrared light, so that the light incident on the imaging surface 90 is visible light, and the wavelength of the visible light is 380nm to 780nm. The imaging surface 90 is located on the side of the infrared filter 70 away from the sixth lens 60, and the effective pixel area of ​​the electronic photosensitive element is located on the imaging surface 90.

[0071] The materials of the first lens 10, the second lens 20, the third lens 30, the fourth lens 40, the fifth lens 50 and the sixth lens 60 are all plastic, and the material of the infrared filter 70 is glass. The material of each lens of the optical imaging lens is not limited to plastic, but can also be glass. For example, the material of the first lens 10 is set to glass, and the material of the second lens 20, the third lens 30, the fourth lens 40, the fifth lens 50 and the sixth lens 60 is set to plastic, or other glass-plastic mixed forms, etc., which can not only improve the optical performance of the optical imaging lens, but also improve the strength and service life of the optical imaging lens.

[0072] The optical imaging lens in this embodiment satisfies the following conditional formula:

[0073] 1.25<TTL / ImgH=1.663<1.7;

[0074] 0.5<f12 / f3456=0.510<3;

[0075] 1.2<f12 / f=1.518<3.5;

[0076] Fno / ImgH=0.402mm -1 <0.45mm -1 ;

[0077] 1<f3456 / f=2.978<4;

[0078] 3.5<TTL / ∑AT=5.175<5.5;

[0079] 0<(R51+R52) / (R51-R52)=1.018<3;

[0080] 2<R61 / CT6=3.241<6;

[0081] ImgH=4.63mm>4.5mm;

[0082] The above parameters have been defined before and will not be repeated here.

[0083] Table 1 is a characteristic table of the optical imaging lens of this embodiment, wherein each data is obtained using visible light with a reference wavelength of 587.6 nm, and the units of Y radius, thickness, and focal length are all millimeters (mm).

[0084] Table 1:

[0085]

[0086]

[0087] Wherein, f is the effective focal length of the optical imaging lens, FNO is the aperture number of the optical imaging lens, HFOV is half of the maximum field of view of the optical imaging lens, and TTL is the distance from the object side surface 11 of the first lens 10 to the imaging surface 90 of the optical imaging lens on the optical axis.

[0088] In this embodiment, any one of the object-side surface 11 and the image-side surface 12 of the first lens 10, the object-side surface 21 and the image-side surface 22 of the second lens 20, the object-side surface 31 and the image-side surface 32 of the third lens 30, the object-side surface 41 and the image-side surface 42 of the fourth lens 40, the object-side surface 51 and the image-side surface 52 of the fifth lens 50, and the object-side surface 61 and the image-side surface 62 of the sixth lens 60 is an aspherical surface, and the surface shape x of each aspherical surface can be defined by, but not limited to, the following aspherical surface formula:

[0089]

[0090] Among them, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c = 1 / R (that is, the paraxial curvature c is the reciprocal of the Y radius R in Table 1); k is the cone coefficient; Ai is the correction coefficient of the i-th order aspheric surface.

[0091] Table 2 shows the high-order coefficients A4, A6, A8, A10, A12, A14, A15, A17, A18 and A20 of the object-side surface 11 and the image-side surface 12 of the first lens 10, the object-side surface 21 and the image-side surface 22 of the second lens 20, the object-side surface 31 and the image-side surface 32 of the third lens 30, the object-side surface 41 and the image-side surface 42 of the fourth lens 40, the object-side surface 51 and the image-side surface 52 of the fifth lens 50, and the object-side surface 61 and the image-side surface 62 of the sixth lens 60, which can be used in this embodiment.

[0092] Table 2:

[0093]

[0094]

[0095] Figure 2 The longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging lens in this embodiment are shown. Among them, the longitudinal spherical aberration curve represents the deviation of the focal point of light with wavelengths of 643.8469nm, 546.0740nm and 479.9914nm after passing through each lens of the optical imaging lens; the astigmatism curve represents the meridian imaging surface curvature T and the sagittal imaging surface curvature S; the distortion curve represents the corresponding distortion value of the optical imaging lens at each field angle. According to Figure 2 It can be seen that the optical imaging lens provided in the first embodiment can achieve good imaging quality.

[0096] Embodiment 2

[0097] See also Figure 3 and Figure 4 As shown, according to the second embodiment of the present invention, an optical imaging lens is provided. The structure of the optical imaging lens is the same as that of the first embodiment, except that the optical imaging lens in this embodiment satisfies the following conditional formula:

[0098] 1.25<TTL / ImgH=1.577<1.7;

[0099] 0.5<f12 / f3456=0.521<3;

[0100] 1.2<f12 / f=1.597<3.5;

[0101] Fno / ImgH=0.402mm -1 <0.45mm -1 ;

[0102] 1<f3456 / f=3.069<4;

[0103] 3.5<TTL / ∑AT=4.294<5.5;

[0104] 0<(R51+R52) / (R51-R52)=1.134<3;

[0105] 2<R61 / CT6=5.080<6;

[0106] ImgH=4.63mm>4.5mm;

[0107] The above parameters have been defined before and will not be repeated here.

[0108] Table 3 is a characteristic table of the optical imaging lens of this embodiment, wherein each data is obtained using visible light with a reference wavelength of 587.6 nm, and the units of Y radius, thickness, and focal length are all millimeters (mm).

[0109] Table 3:

[0110]

[0111]

[0112] The meanings of the parameters in Table 3 are the same as those in Example 1.

[0113] Table 4 gives the high-order coefficients of each aspherical mirror surface that can be used in the second embodiment, wherein the surface shape of each aspherical surface can be defined by the formula given in the first embodiment.

[0114] Table 4:

[0115] Surface number 11 12 21 22 31 32 K -1.32E-01 7.81E+00 -1.00E+01 1.64E-01 -1.84E+01 -6.51E+01 A4 -2.64E-03 1.27E-02 -4.04E-02 -7.05E-02 -3.01E-02 -2.18E-02 A6 5.14E-03 4.68E-02 1.06E-01 1.12E-01 2.88E-02 2.53E-02 A8 -4.80E-03 -1.26E-01 -1.85E-01 -1.83E-01 -3.96E-02 -2.53E-02 A10 -7.19E-03 1.71E-01 2.11E-01 2.25E-01 4.13E-02 1.54E-02 A12 2.00E-02 -1.46E-01 -1.57E-01 -1.85E-01 -2.78E-02 -6.94E-03 A14 -1.98E-02 7.86E-02 7.26E-02 9.65E-02 1.18E-02 2.15E-03 A16 1.00E-02 -2.61E-02 -1.95E-02 -3.03E-02 -3.10E-03 -4.22E-04 A18 -2.60E-03 4.90E-03 2.73E-03 5.24E-03 4.57E-04 4.68E-05 A20 2.73E-04 -4.02E-04 -1.48E-04 -3.81E-04 -2.91E-05 -2.22E-06 Surface number 41 42 51 52 61 62 K 1.64E+01 -1.12E+00 22.189021 -0.018413 1.3368349 -3.899984 A4 -1.34E-02 4.71E-02 0.0286733 0.0340215 -0.011125 -0.024281 A6 1.82E-02 -2.44E-02 -0.011278 -0.004668 -0.0006 0.0041799 A8 4.24E-03 2.15E-02 0.0030321 0.000555 -7.75E-05 -0.000605 A10 -1.12E-02 -1.19E-02 -0.000871 -0.000287 0.0002037 7.01E-05 A12 5.86E-03 4.07E-03 0.0001691 8.03E-05 -4.76E-05 -5.67E-06 A14 -1.56E-03 -8.55E-04 -2.12E-05 -1.08E-05 5.12E-06 2.81E-07 A16 2.36E-04 1.08E-04 1.86E-06 7.24E-07 -2.96E-07 -7.11E-09 A18 -1.94E-05 -7.43E-06 -1.05E-07 -2.22E-08 8.93E-09 5.31E-11 A20 6.78E-07 2.17E-07 2.67E-09 2.01E-10 -1.11E-10 5.35E-13

[0116] Figure 4 The longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging lens in this embodiment are shown. Among them, the longitudinal spherical aberration curve represents the deviation of the focal point of light with wavelengths of 643.8469nm, 546.0740nm and 479.9914nm after passing through each lens of the optical imaging lens; the astigmatism curve represents the meridian imaging surface curvature T and the sagittal imaging surface curvature S; the distortion curve represents the corresponding distortion value of the optical imaging lens at each field angle. According to Figure 4 It can be seen that the optical imaging lens provided in the second embodiment can achieve good imaging quality.

[0117] Embodiment 3

[0118] See also Figure 5 and Figure 6 As shown, according to the third embodiment of the present invention, an optical imaging lens is provided. The structure of the optical imaging lens is the same as that of the first embodiment, except that the object side surface 51 and the image side surface 52 of the fifth lens 50 in this embodiment are both convex surfaces at the near optical axis, the object side surface 61 of the sixth lens 60 is a convex surface at the near optical axis, and the image side surface 62 of the sixth lens 60 is a concave surface at the near optical axis, and the optical imaging lens in this embodiment satisfies the following conditional formula:

[0119] 1.25<TTL / ImgH=1.328<1.7;

[0120] 0.5<f12 / f3456=0.786<3;

[0121] 1.2<f12 / f=1.728<3.5;

[0122] Fno / ImgH=0.402mm -1 <0.45mm -1 ;

[0123] 1<f3456 / f=2.200<4;

[0124] 3.5<TTL / ∑AT=3.568<5.5;

[0125] 0<(R51+R52) / (R51-R52)=0.548<3;

[0126] 2<R61 / CT6=3.117<6;

[0127] ImgH=4.63mm>4.5mm;

[0128] The above parameters have been defined before and will not be repeated here.

[0129] Table 5 is a characteristic table of the optical imaging lens of this embodiment, wherein each data is obtained using visible light with a reference wavelength of 587.6 nm, and the units of Y radius, thickness, and focal length are all millimeters (mm).

[0130] Table 5:

[0131]

[0132]

[0133] The meanings of the parameters in Table 5 are the same as those in Example 1.

[0134] Table 6 gives the high-order coefficients that can be used for each aspherical mirror surface in the third embodiment, wherein the surface shape of each aspherical surface can be defined by the formula given in the first embodiment.

[0135] Table 6:

[0136]

[0137]

[0138] Figure 6 The longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging lens in this embodiment are shown. Among them, the longitudinal spherical aberration curve represents the deviation of the focal point of light with wavelengths of 643.8469nm, 546.0740nm and 479.9914nm after passing through each lens of the optical imaging lens; the astigmatism curve represents the meridian imaging surface curvature T and the sagittal imaging surface curvature S; the distortion curve represents the corresponding distortion value of the optical imaging lens at each field angle. According to Figure 6 It can be seen that the optical imaging lens provided in the third embodiment can achieve good imaging quality.

[0139] Embodiment 4

[0140] See also Figure 7 and Figure 8 As shown, according to a fourth embodiment of the present invention, an optical imaging lens is provided. The structure of the optical imaging lens is the same as that of the first embodiment, except that the third lens element 30 in this embodiment has a positive refractive power, the object side surface 61 of the sixth lens element 60 is a convex surface at the near optical axis, the image side surface 62 of the sixth lens element 60 is a concave surface at the near optical axis, and the optical imaging lens in this embodiment satisfies the following conditional formula:

[0141] 1.25<TTL / ImgH=1.296<1.7;

[0142] 0.5<f12 / f3456=2.483<3;

[0143] 1.2<f12 / f=3.277<3.5;

[0144] Fno / ImgH=0.389mm -1 <0.45mm -1 ;

[0145] 1<f3456 / f=1.007<4;

[0146] 3.5<TTL / ∑AT=4.054<5.5;

[0147] 0<(R51+R52) / (R51-R52)=1.002<3;

[0148] 2<R61 / CT6=4.183<6;

[0149] ImgH=4.63mm>4.5mm;

[0150] The above parameters have been defined before and will not be repeated here.

[0151] Table 7 is a characteristic table of the optical imaging lens of this embodiment, wherein each data is obtained using visible light with a reference wavelength of 587.6 nm, and the units of Y radius, thickness, and focal length are all millimeters (mm).

[0152] Table 7:

[0153]

[0154]

[0155] The meanings of the parameters in Table 7 are the same as those in Example 1.

[0156] Table 8 gives the high-order coefficients of each aspherical mirror surface that can be used in the fourth embodiment, wherein the surface shape of each aspherical surface can be defined by the formula given in the first embodiment.

[0157] Table 8:

[0158] Surface number 11 12 21 22 31 32 K -6.37E+00 1.21E+01 9.78E+01 -1.20E-01 -1.00E+01 -2.44E+01 A4 -1.19E-02 -5.67E-03 -3.11E-02 -8.60E-02 -6.60E-02 -1.32E-02 A6 5.97E-02 1.13E-01 8.18E-02 1.50E-01 7.66E-02 1.67E-03 A8 -2.45E-01 -4.32E-01 -5.45E-02 -1.66E-01 -8.38E-02 -3.76E-02 A10 5.15E-01 9.32E-01 -1.26E-01 9.45E-02 7.91E-02 5.33E-02 A12 -6.68E-01 -1.32E+00 2.53E-01 -2.05E-02 -5.46E-02 -3.66E-02 A14 5.32E-01 1.18E+00 -2.03E-01 -6.30E-03 2.39E-02 1.33E-02 A16 -2.55E-01 -6.33E-01 8.68E-02 5.13E-03 -6.09E-03 -2.61E-03 A18 6.70E-02 1.87E-01 -1.94E-02 -1.23E-03 8.15E-04 2.65E-04 A20 -7.39E-03 -2.31E-02 1.79E-03 1.07E-04 -4.43E-05 -1.11E-05 Surface number 41 42 51 52 61 62 K 0.00E+00 -1.01E+00 -99 -3.956908 95.912497 -3.131062 A4 0.00E+00 1.83E-01 0.15542902 0.1212179 -0.03152 -0.05472 A6 0.00E+00 -2.51E-01 -0.1398105 -0.047693 -0.004536 0.0175156 A8 0.00E+00 2.25E-01 0.07965303 0.0136895 0.0015059 -4.53E-03 A10 0.00E+00 -1.55E-01 -0.031329 -0.004576 0.0005853 8.62E-04 A12 0.00E+00 7.82E-02 0.00748674 0.0012922 -2.36E-04 -1.11E-04 A14 0.00E+00 -2.56E-02 -8.88E-04 -2.29E-04 3.39E-05 9.16E-06 A16 0.00E+00 5.02E-03 3.12E-06 2.32E-05 -2.48E-06 -4.63E-07 A18 0.00E+00 -5.33E-04 1.02E-05 -1.24E-06 9.24E-08 1.30E-08 A20 0.00E+00 2.35E-05 -7.23E-07 2.71E-08 -1.40E-09 -1.54E-10

[0159] Figure 8The longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging lens in this embodiment are shown. Among them, the longitudinal spherical aberration curve represents the deviation of the focal point of light with wavelengths of 643.8469nm, 546.0740nm and 479.9914nm after passing through each lens of the optical imaging lens; the astigmatism curve represents the meridian imaging surface curvature T and the sagittal imaging surface curvature S; the distortion curve represents the corresponding distortion value of the optical imaging lens at each field angle. According to Figure 8 It can be seen that the optical imaging lens provided in the fourth embodiment can achieve good imaging quality.

[0160] Embodiment 5

[0161] See also Figure 7 and Figure 8 As shown, according to the fifth embodiment of the present invention, an optical imaging lens is provided. The structure of the optical imaging lens is the same as that of the first embodiment, except that the third lens element 30 in this embodiment has positive refractive power, the object side surface 61 of the sixth lens element 60 is a convex surface at the near optical axis, the image side surface 62 of the sixth lens element 60 is a concave surface at the near optical axis, and the optical imaging lens in this embodiment satisfies the following conditional formula:

[0162] 1.25<TTL / ImgH=1.620<1.7;

[0163] 0.5<f12 / f3456=0.886<3;

[0164] 1.2<f12 / f=1.270<3.5;

[0165] Fno / ImgH=0.402mm -1 <0.45mm -1 ;

[0166] 1<f3456 / f=1.434<4;

[0167] 3.5<TTL / ∑AT=4.298<5.5;

[0168] 0<(R51+R52) / (R51-R52)=2.924<3;

[0169] 2<R61 / CT6=2.334<6;

[0170] ImgH=4.63mm>4.5mm;

[0171] The above parameters have been defined before and will not be repeated here.

[0172] Table 9 is a characteristic table of the optical imaging lens of this embodiment, wherein each data is obtained using visible light with a reference wavelength of 587.6 nm, and the units of Y radius, thickness, and focal length are all millimeters (mm).

[0173] Table 9:

[0174]

[0175]

[0176] The meanings of the parameters in Table 9 are the same as those in Example 1.

[0177] Table 10 gives the high-order coefficients that can be used for each aspherical mirror surface in Example 5, wherein the surface shape of each aspherical surface can be defined by the formula given in Example 1.

[0178] Table 10:

[0179]

[0180]

[0181] Fig.10 The longitudinal spherical aberration curve, astigmatism curve and distortion curve of the optical imaging lens in this embodiment are shown. Among them, the longitudinal spherical aberration curve represents the deviation of the focal point of light with wavelengths of 643.8469nm, 546.0740nm and 479.9914nm after passing through each lens of the optical imaging lens; the astigmatism curve represents the meridian imaging surface curvature T and the sagittal imaging surface curvature S; the distortion curve represents the corresponding distortion value of the optical imaging lens at each field angle. According to Fig.10 It can be seen that the optical imaging lens provided in Example 5 can achieve good imaging quality.

[0182] According to another aspect of the present invention, see Fig.11 As shown, the present invention further provides a camera module 200, which includes a housing 201, a photosensitive element (not shown in the figure) and an optical imaging lens 100, wherein 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 camera module in this embodiment has the optical imaging lens described above, and therefore, the camera module in this embodiment has all the beneficial effects of the optical imaging lens described above, and since the beneficial effects of the optical imaging lens have been fully described above, they will not be repeated here.

[0183] According to the third aspect of the present invention, see Fig.12As shown, the present invention provides an electronic device 300, which may be, for example, a mobile phone, a tablet computer, a phone watch, a security camera, a car camera, etc. The electronic device includes a camera module 200 and a housing 301, and the camera module 200 is arranged in the housing 301. It can be understood that the electronic device 300 in this embodiment has the camera module 200 and the optical imaging lens described above, so the camera module in this embodiment has all the beneficial effects of the camera module 200 and the optical imaging lens described above, and since the beneficial effects of the optical imaging lens have been fully described above, they will not be repeated here.

[0184] An optical imaging lens, a camera module, and an electronic device disclosed in an embodiment of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand an optical imaging lens, a camera module, and an electronic device of the present invention and their core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An optical imaging lens, characterized in that: The optical imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are arranged in sequence from the object side to the image side; The first lens has positive refractive power, the object side surface of the first lens is convex at the near optical axis, and the image side surface of the first lens is convex at the near optical axis; The second lens has negative refractive power, the object side surface of the first lens is convex at the near optical axis, and the image side surface of the second lens is concave at the near optical axis; The third lens has refractive power, and the object side surface of the third lens is convex at the near optical axis; The fourth lens has positive refractive power, the object side surface of the fourth lens is concave 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 positive refractive power, and the image side surface of the fifth lens is convex at the near optical axis; The sixth lens has negative refractive power, the image side surface of the sixth lens is concave at the near optical axis, at least one of the object side surface of the sixth lens and the image side surface of the sixth lens is aspherical, and at least one of the object side surface of the sixth lens and the image side surface of the sixth lens is provided with at least one inflection point; Wherein, the optical imaging lens satisfies the conditional formula: 1<f3456 / f<4, f3456 is the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens, and f is the effective focal length of the optical imaging lens; The optical imaging lens also satisfies the conditional formula: ImgH>4.5mm, where ImgH is half of the image height corresponding to the maximum field angle of the optical imaging lens; The optical imaging lens also includes an aperture, which is arranged between two adjacent lenses among the first lens to the sixth lens of the optical imaging lens, at one or more of the object side surface of the first lens and the image side surface of the sixth lens, and the aperture is used to adjust and limit the size of the light beam or the imaging range.

2. The optical imaging lens according to claim 1, wherein: The optical imaging lens also satisfies the condition: 1.25<TTL / ImgH<1.7, 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, and ImgH is half of the image height corresponding to the maximum field of view angle of the optical imaging lens.

3. The optical imaging lens according to claim 1, wherein: The optical imaging lens also satisfies the condition: 0.5<f12 / f3456<3, where f12 is the combined focal length of the first lens and the second lens.

4. The optical imaging lens according to claim 1, wherein: The optical imaging lens also satisfies the condition: 1.2<f12 / f<3.5, where f12 is the combined focal length of the first lens and the second lens.

5. The optical imaging lens according to claim 1, wherein: The optical imaging lens also satisfies the condition: Fno / ImgH<0.45mm -1 , Fno is the aperture number of the optical imaging lens, and ImgH is half of the image height corresponding to the maximum field angle of the optical imaging lens.

6. The optical imaging lens according to claim 1, wherein: The optical imaging lens also satisfies the condition: 3.5<TTL / ∑AT<5.5, 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, and ∑AT is the sum of the intervals on the optical axis between two adjacent lenses of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens.

7. The optical imaging lens according to claim 1, wherein: The optical imaging lens also satisfies the condition: 0<(R51+R52) / (R51-R52)<3, R51 is the curvature radius of the object side surface of the fifth lens at the optical axis, and R52 is the curvature radius of the image side surface of the fifth lens at the optical axis.

8. The optical imaging lens according to claim 1, wherein: The optical imaging lens also satisfies the condition: 2<R61 / CT6<6, R61 is the radius of curvature of the image side surface of the sixth lens at the optical axis, and CT6 is the thickness of the sixth lens on the optical axis.

9. A camera module, characterized in that: The camera module includes a photosensitive element and an optical imaging lens according to any one of claims 1 to 8, wherein the photosensitive element is arranged on the image side of the optical imaging lens.

10. An electronic device, characterized in that: The electronic device includes the camera module described in claim 9.

Images