Optical camera lens

Abstract

The utility model discloses an optical camera lens. The optical pick-up lens sequentially comprises a lens group, a plurality of spacing elements and a lens barrel for accommodating the lens group and the plurality of spacing elements from an object side to an image side along an optical axis. The lens group sequentially comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with positive focal power, a fifth lens with negative focal power, a sixth lens with positive focal power and a seventh lens with negative focal power from the object side to the image side along the optical axis; wherein the number of the lenses with focal power in the lens group is seven. The plurality of spacer elements includes a third spacer element located on the image side of the third lens and in contact with an image side surface portion of the third lens, and a fourth spacer element located on the image side of the fourth lens and in contact with an image side surface portion of the fourth lens. The optical pick-up lens satisfies the condition that f2 * N2 / (T23 + EP34) is greater than or equal to-33.02 and less than or equal to-16.03.

Description

[0001] Divisional Application Statement

[0002] This application is a divisional application of the Chinese utility model patent application with the invention name “Optical Camera Lens” and application number 202420107911.3 filed on January 16, 2024. Technical Field

[0003] The present application relates to the field of optical elements, and in particular, to an optical camera lens. Background Art

[0004] In recent years, with the advancement of technology, portable electronic devices such as smartphones have been continuously iterating and developing. At the same time, the market demand for optical camera lenses installed in mobile phones is increasing, and mobile phone users are also increasingly demanding the imaging quality of lenses.

[0005] Generally speaking, the image plane size of an optical camera lens is small, and the detection range of the lens is small or the detection distance is limited. Therefore, how to increase the pixel and image plane size of the lens has become one of the main development trends in the lens industry.

[0006] However, although there are lenses with characteristics such as high resolution and large image surface on the market, such lenses often have problems such as high sensitivity of some lenses and poor assembly stability. Utility Model Content

[0007] The present application provides an optical camera lens, which includes a lens group, a plurality of spacer elements, and a lens barrel for accommodating the lens group and the plurality of spacer elements in sequence from the object side to the image side along the optical axis. The lens group includes a first lens with positive focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with positive focal power, a fifth lens with negative focal power, a sixth lens with positive focal power, and a seventh lens with negative focal power in sequence from the object side to the image side along the optical axis, wherein the object side surface of the first lens is a convex surface, the image side surface of the second lens is a concave surface, the edge area of ​​the image side surface of the first lens is mutually engaged with the edge area of ​​the object side surface of the second lens, and the number of lenses with focal power in the lens group is seven. The plurality of spacer elements include a second spacer element located on the image side of the second lens and partially in contact with the image side surface of the second lens, and a third spacer element located on the image side of the third lens and partially in contact with the image side surface of the third lens. The optical camera lens may satisfy: T12<T23, T34<T45, T56<T67, 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0, wherein T12 is the air interval between the first lens and the second lens on the optical axis, T23 is the air interval between the second lens and the third lens on the optical axis, T34 is the air interval between the third lens and the fourth lens on the optical axis, T45 is the air interval between the fourth lens and the fifth lens on the optical axis, and T56 is the air interval between the fifth lens and the sixth lens on the optical axis. The air spacing on the lens element is as follows: T67 is the air spacing between the sixth lens and the seventh lens on the optical axis, L is the spacing distance from the object side end of the lens barrel to the image side end of the lens barrel in the direction along the optical axis, ImgH is half of the diagonal length of the effective pixel area on the imaging plane of the optical camera lens, R5 is the radius of curvature of the object side surface of the third lens, f3 is the effective focal length of the third lens, EP23 is the spacing distance from the image side surface of the second spacing element to the object side surface of the third spacing element in the direction along the optical axis, CT3 is the center thickness of the third lens on the optical axis, N3 is the refractive index of the third lens, and CP3 is the maximum thickness of the third spacing element.

[0008] In one embodiment, at least one mirror surface from the object side surface of the first lens to the image side surface of the seventh lens is an aspherical mirror surface.

[0009] In one embodiment, the plurality of spacer elements further include a fourth spacer element located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens. The optical camera lens may satisfy: 0.5<(CT3+T34+CT4) / (EP34+EP23)<1.2, wherein CT3 is the center thickness of the third lens on the optical axis, T34 is the air spacing between the third lens and the fourth lens on the optical axis, CT4 is the center thickness of the fourth lens on the optical axis, EP34 is the spacing distance from the image side surface of the third spacer element to the object side surface of the fourth spacer element in the direction along the optical axis, and EP23 is the spacing distance from the image side surface of the second spacer element to the object side surface of the third spacer element in the direction along the optical axis.

[0010] In one embodiment, the plurality of spacer elements further include a fourth spacer element located on the image side of the fourth lens and in partial contact with the image side surface of the fourth lens, and a fifth spacer element located on the image side of the fifth lens and in partial contact with the image side surface of the fifth lens. The optical camera lens may satisfy: 25.0<EP45 / CP5+T45 / CT5<41.0, wherein EP45 is the spacing distance from the image side surface of the fourth spacer element to the object side surface of the fifth spacer element in the direction along the optical axis, CP5 is the maximum thickness of the fifth spacer element, T45 is the air spacing between the fourth lens and the fifth lens on the optical axis, and CT5 is the center thickness of the fifth lens on the optical axis.

[0011] In one embodiment, the plurality of spacer elements further include a fourth spacer element located on the image side of the fourth lens and in partial contact with the image side surface of the fourth lens, a fifth spacer element located on the image side of the fifth lens and in partial contact with the image side surface of the fifth lens, and a sixth spacer element located on the image side of the sixth lens and in partial contact with the image side surface of the sixth lens. The optical camera lens may satisfy: 0.5<(CT5+T56+CT6) / (EP45+EP56)<1.1, wherein CT5 is the center thickness of the fifth lens on the optical axis, CT6 is the center thickness of the sixth lens on the optical axis, T56 is the air spacing between the fifth lens and the sixth lens on the optical axis, EP45 is the spacing distance from the image side surface of the fourth spacer element to the object side surface of the fifth spacer element in the direction along the optical axis, and EP56 is the spacing distance from the image side surface of the fifth spacer element to the object side surface of the sixth spacer element in the direction along the optical axis.

[0012] In one embodiment, the plurality of spacer elements further include a fourth spacer element located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens. The optical camera lens may satisfy: -34.0<f2×N2 / (T23+EP34)<-16.0, wherein f2 is the effective focal length of the second lens, N2 is the refractive index of the second lens, T23 is the air spacing between the second lens and the third lens on the optical axis, and EP34 is the spacing distance from the image side surface of the third spacer element to the object side surface of the fourth spacer element in the direction along the optical axis.

[0013] In one embodiment, the plurality of spacer elements further include a first spacer element located on the image side of the first lens and partially in contact with the image side surface of the first lens. The optical camera lens may satisfy: 0.8<EP01 / CT1<1.2 and -0.5<(D0s-d0s) / (D1s-d1s)<1.0, wherein EP01 is the spacing distance from the object side end of the lens barrel to the object side surface of the first spacer element in the direction along the optical axis, CT1 is the center thickness of the first lens on the optical axis, D1s is the outer diameter of the object side surface of the first spacer element, d1s is the inner diameter of the object side surface of the first spacer element, D0s is the outer diameter of the object side end of the lens barrel, and d0s is the inner diameter of the object side end of the lens barrel.

[0014] In one embodiment, the plurality of spacer elements further include a fifth spacer element located on the image side of the fifth lens and in partial contact with the image side surface of the fifth lens, and a sixth spacer element located on the image side of the sixth lens and in partial contact with the image side surface of the sixth lens. The optical camera lens may satisfy: -2.0<(EP56+CP6) / SAG71<-0.4, wherein EP56 is the spacing distance from the image side surface of the fifth spacer element to the object side surface of the sixth spacer element in the direction along the optical axis, CP6 is the maximum thickness of the sixth spacer element, and SAG71 is the distance from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis.

[0015] In one embodiment, the optical camera lens may satisfy: 1.0<DT32×D3s / (DT22×D2m)<1.5, wherein DT22 is the maximum effective radius of the image side surface of the second lens, DT32 is the maximum effective radius of the image side surface of the third lens, D3s is the outer diameter of the object side surface of the third spacing element, and D2m is the outer diameter of the image side surface of the second spacing element.

[0016] In one embodiment, the optical camera lens may satisfy: -35.0<R7 / f4<-11.5, wherein f4 is the effective focal length of the fourth lens, and R7 is the radius of curvature of the object side surface of the fourth lens.

[0017] In one embodiment, the optical camera lens may satisfy: 1.4<f / EPD<1.6 and 1.0<(D0m-D0s) / ImgH<1.5, wherein f is the total effective focal length of the optical camera lens, EPD is the entrance pupil diameter of the optical camera lens, D0m is the outer diameter of the image side end of the lens barrel, D0s is the outer diameter of the object side end of the lens barrel, and ImgH is half of the diagonal length of the effective pixel area on the imaging plane of the optical camera lens.

[0018] On the other hand, the present application provides such an optical camera lens, which includes a lens group, a plurality of spacer elements, and a lens barrel for accommodating the lens group and the plurality of spacer elements in sequence from the object side to the image side along the optical axis. The lens group includes a first lens with positive optical power, a second lens with negative optical power, a third lens with negative optical power, a fourth lens with positive optical power, a fifth lens with negative optical power, a sixth lens with positive optical power, and a seventh lens with negative optical power in sequence from the object side to the image side along the optical axis, wherein the object side surface of the first lens is a convex surface, the image side surface of the second lens is a concave surface, the edge area of ​​the image side surface of the first lens is interlocked with the edge area of ​​the object side surface of the second lens, and the number of lenses with optical power in the lens group is seven. The plurality of spacer elements also include a first spacer element located on the image side of the first lens and partially in contact with the image side surface of the first lens. The optical camera lens can satisfy: 0.8<EP01 / CT1<1.2 and -0.5<(D0s-d0s) / (D1s-d1s)<1.0, wherein EP01 is the spacing distance from the object side end of the lens barrel to the object side surface of the first spacing element in the direction along the optical axis, CT1 is the center thickness of the first lens on the optical axis, D1s is the outer diameter of the object side surface of the first spacing element, d1s is the inner diameter of the object side surface of the first spacing element, D0s is the outer diameter of the object side end of the lens barrel, and d0s is the inner diameter of the object side end of the lens barrel.

[0019] On the other hand, the present application provides such an optical camera lens, which includes a lens group, a plurality of spacer elements, and a lens barrel for accommodating the lens group and the plurality of spacer elements in sequence from the object side to the image side along the optical axis. The lens group includes a first lens with positive optical power, a second lens with negative optical power, a third lens with negative optical power, a fourth lens with positive optical power, a fifth lens with negative optical power, a sixth lens with positive optical power, and a seventh lens with negative optical power in sequence from the object side to the image side along the optical axis, wherein the object side surface of the first lens is a convex surface, the image side surface of the second lens is a concave surface, the edge area of ​​the image side surface of the first lens is mutually engaged with the edge area of ​​the object side surface of the second lens, and the number of lenses with optical power in the lens group is seven. The plurality of spacer elements include a third spacer element located on the image side of the third lens and partially in contact with the image side surface of the third lens, and a fourth spacer element located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens. The optical camera lens can satisfy: -34.0<f2×N2 / (T23+EP34)<-16.0, wherein f2 is the effective focal length of the second lens, N2 is the refractive index of the second lens, T23 is the air spacing between the second lens and the third lens on the optical axis, and EP34 is the spacing distance from the image side surface of the third spacing element to the object side surface of the fourth spacing element in the direction along the optical axis.

[0020] On the other hand, the present application provides such an optical camera lens, which includes a lens group, a plurality of spacer elements, and a lens barrel for accommodating the lens group and the plurality of spacer elements in sequence from the object side to the image side along the optical axis. The lens group includes a first lens with positive optical power, a second lens with negative optical power, a third lens with negative optical power, a fourth lens with positive optical power, a fifth lens with negative optical power, a sixth lens with positive optical power, and a seventh lens with negative optical power in sequence from the object side to the image side along the optical axis, wherein the object side surface of the first lens is convex, the image side surface of the second lens is concave, the edge area of ​​the image side surface of the first lens is mutually engaged with the edge area of ​​the object side surface of the second lens, and the number of lenses with optical power in the lens group is seven. The plurality of spacer elements include a fourth spacer element located on the image side of the fourth lens and partially in contact with the image side surface of the fourth lens, a fifth spacer element located on the image side of the fifth lens and partially in contact with the image side surface of the fifth lens, and a sixth spacer element located on the image side of the sixth lens and partially in contact with the image side surface of the sixth lens. The optical camera lens can satisfy: 0.5<(CT5+T56+CT6) / (EP45+EP56)<1.1, wherein CT5 is the center thickness of the fifth lens on the optical axis, CT6 is the center thickness of the sixth lens on the optical axis, T56 is the air gap between the fifth lens and the sixth lens on the optical axis, EP45 is the spacing distance from the image side surface of the fourth spacing element to the object side surface of the fifth spacing element in the direction along the optical axis, and EP56 is the spacing distance from the image side surface of the fifth spacing element to the object side surface of the sixth spacing element in the direction along the optical axis.

[0021] In an exemplary embodiment of the present application, by reasonably setting the optical power of the seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, and the air spacing between adjacent lenses to satisfy T12<T23, T34<T45, T56<T67, it is beneficial to reasonably arrange the spatial positional relationship between the lenses, effectively adjust the path of the light and the degree of light convergence or divergence, reduce the sensitivity of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the optical power of the seven lenses and the air spacing between adjacent lenses, the object side surface of the first lens is set to be a convex surface, which can make the light converge to achieve the goal of shooting a long distance; the image side surface of the second lens is set to be a concave surface, which can make the light diverge to achieve the goal of shooting a close distance. At the same time, setting the edges of the first lens and the second lens to interlock with each other not only helps to reduce the size of the optical camera lens, but also helps to improve the stability of the lens structure. On this basis, by setting a plurality of spacer elements, a lens barrel and matching 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0, it is beneficial to make the lens have the characteristics of ultra-thinness, large image surface and high stability of the third lens assembly. Specifically, setting the lens to meet 1.2<L / ImgH<1.4 is beneficial to make the lens have the characteristics of ultra-thinness, large image surface and the like. Generally, the sensitivity of the lens near the middle position in the ultra-thin large image surface lens is relatively large. Based on this, the present application controls the effective focal length of the third lens near the middle position and the radius of curvature of the object side of the third lens within a specific range, and controls the thickness of the third lens, the air interval between adjacent lenses and the adjacent spacer elements to meet 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0, which can effectively reduce the sensitivity of the third lens and improve the assembly stability of the third lens.

[0022] In another exemplary embodiment of the present application, by reasonably setting the focal length of the seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, it is helpful to effectively adjust the path of the light and the degree of light convergence or divergence, reduce the size of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the focal length of the seven lenses, setting the object side surface of the first lens as a convex surface can make the light converge to achieve the goal of shooting a long distance; setting the image side surface of the second lens as a concave surface can make the light diverge to achieve the goal of shooting a close distance. At the same time, setting the edges of the first lens and the second lens to interlock with each other not only helps to reduce the size of the optical camera lens, but also helps to improve the stability of the lens structure. On this basis, by setting multiple spacer elements and lens barrels and controlling 0.8<EP01 / CT1<1.2, the shape of the first lens can be controlled so that it is not easy to break during assembly, and controlling -0.5<(D0s-d0s) / (D1s-d1s)<1.0 is beneficial to improving the assembly stability of the first lens, ensuring the overall shape of the first lens and its assembly stability, which is beneficial to further reduce the on-axis spherical aberration and off-axis coma of the lens.

[0023] In another exemplary embodiment of the present application, by reasonably setting the focal power of the seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, it is beneficial to effectively adjust the path of the light and the degree of light convergence or divergence, reduce the size of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the focal power of the seven lenses, setting the object side surface of the first lens as a convex surface can make the light converge to achieve the goal of shooting a long distance; setting the image side surface of the second lens as a concave surface can make the light diverge to achieve the goal of shooting a close distance. At the same time, setting the edges of the first lens and the second lens to be interlocked with each other not only helps to reduce the size of the optical camera lens, but also helps to improve the stability of the lens structure. On this basis, by setting a plurality of spacer elements, a lens barrel and matching -34.0<f2×N2 / (T23+EP34)<-16.0, the deflection angle of the light after passing through the first lens to the fourth lens can be reduced, and the spacing between the second lens and the third lens and the third spacer element and the fourth spacer element can be controlled within a reasonable range, thereby helping to improve the assembly stability of the first lens to the fourth lens.

[0024] In another exemplary embodiment of the present application, by reasonably setting the focal length of the seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, it is beneficial to effectively adjust the path of the light and the degree of light convergence or divergence, reduce the size of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the focal length of the seven lenses, setting the object side surface of the first lens as a convex surface can make the light converge to achieve the goal of shooting a long distance; setting the image side surface of the second lens as a concave surface can make the light diverge to achieve the goal of shooting a close distance. At the same time, setting the edges of the first lens and the second lens to be interlocked with each other can not only help to reduce the size of the optical camera lens, but also help to improve the stability of the lens structure. On this basis, by setting a plurality of spacer elements, a lens barrel and matching 0.5<(CT5+T56+CT6) / (EP45+EP56)<1.1, it is possible to reduce the aperture of the fifth lens, the sixth lens and the seventh lens, and ensure that the illumination of the edge field of view does not decrease, which is conducive to ensuring the overall brightness of the imaging picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 is a schematic structural diagram of the optical camera lens of Example 1;

[0027] Figure 2 is a schematic structural diagram of an optical camera lens according to Embodiment 2;

[0028] Figure 3 is a schematic structural diagram of an optical camera lens according to Embodiment 3;

[0029] Figure 4A and Figure 4B The axial chromatic aberration curves and astigmatism curves of the optical camera lenses of Examples 1 to 3 are shown respectively;

[0030] Figure 5 is a schematic structural diagram of an optical camera lens according to Embodiment 4;

[0031] Figure 6 is a schematic structural diagram of an optical camera lens according to Embodiment 5;

[0032] Figure 7 is a schematic structural diagram of an optical camera lens according to Embodiment 6;

[0033] Fig. 8A and Figure 8B The axial chromatic aberration curves and astigmatism curves of the optical camera lenses of Examples 4 to 6 are shown respectively;

[0034] Fig. 9 is a schematic structural diagram of an optical camera lens according to Embodiment 7;

[0035] Fig.10 is a schematic structural diagram of an optical camera lens according to Embodiment 8;

[0036] Fig.11A and Fig. 11B The axial chromatic aberration curve and the astigmatism curve of the optical camera lens of Example 7 and Example 8 are respectively shown;

[0037] Fig.12 is a schematic diagram of some parameters of the optical camera lens according to an embodiment of the present application; and

[0038] Fig.13 is a defocus curve diagram of the optical camera lens according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to better understand the present application, a more detailed description will be made of various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first lens discussed below may also be referred to as the second lens or the third lens, and the first spacing element may also be referred to as the second spacing element or the third spacing element.

[0041] In the accompanying drawings, the thickness, size and shape of the lens have been slightly exaggerated for ease of description. Specifically, the shapes of the spherical or aspherical surfaces shown in the accompanying drawings are shown by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to the shapes of the spherical or aspherical surfaces shown in the accompanying drawings. The accompanying drawings are only examples and are not drawn strictly to scale. It should be understood that the thickness, size and shape of the spacing element and the lens barrel have also been slightly exaggerated in the accompanying drawings for ease of description.

[0042] In this article, the paraxial area refers to the area near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial area; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial area. The surface of each lens closest to the subject is called the object side of the lens, and the surface of each lens closest to the imaging plane is called the image side of the lens. It should be understood that the surface of each spacer element closest to the subject is called the object side of the spacer element, and the surface of each spacer element closest to the imaging plane is called the image side of the spacer element. The surface of the lens barrel closest to the subject is called the object side end of the lens barrel, and the surface of the lens barrel closest to the imaging plane is called the image side end of the lens barrel.

[0043] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

[0044] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as those commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0045] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following embodiments only express several implementation methods of the present application, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, which all belong to the protection scope of the present application. For example, the lens groups (i.e., the first lens to the seventh lens), the lens barrel structure and the spacing elements in the embodiments of the present application can be combined arbitrarily, and are not limited to the lens groups in one embodiment can only be combined with the lens barrel structure, spacing elements, etc. of the embodiment. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] The features, principles and other aspects of the present application are described in detail below.

[0047] The optical camera lens according to the exemplary embodiment of the present application may include seven lenses with optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The seven lenses are arranged in sequence from the object side to the image side along the optical axis. Any two adjacent lenses from the first lens to the seventh lens may have a spacing distance. Any lens from the first lens to the seventh lens may have a central thickness on the optical axis.

[0048] According to an exemplary embodiment of the present application, the first lens to the seventh lens may have an optical region for optical imaging and a non-optical region extending outward from the periphery of the optical region. Generally speaking, the optical region refers to the region of the lens for optical imaging, and the non-optical region is the structural region of the lens. In the assembly process of the optical camera lens, a spacer element may be provided at the non-optical region of each lens and each lens may be connected to the lens barrel respectively by processes such as glue spot bonding. In the imaging process of the optical camera lens, the optical region of each lens may transmit light from an object to form an optical path and form a final optical image; and the non-optical region of each lens after assembly is contained in a lens barrel that cannot transmit light, so that the non-optical region does not directly participate in the imaging process of the optical camera lens. It should be noted that for ease of description, the present application divides each lens into two parts, the optical region and the non-optical region, for description, but it should be understood that the optical region and the non-optical region of the lens may be formed as a whole during the manufacturing process, rather than being formed as two separate parts.

[0049] In an exemplary embodiment of the present application, the optical camera lens may include at least one spacer element, for example, may include at least one spacer element among a first spacer element, a second spacer element, a third spacer element, a fourth spacer element, a fifth spacer element, and a sixth spacer element. The first spacer element may be located on the image side of the first lens and partially contact the image side surface of the first lens, and it may abut against the non-optical area of ​​the image side surface of the first lens. The second spacer element may be located on the image side of the second lens and partially contact the image side surface of the second lens, and it may abut against the non-optical area of ​​the image side surface of the second lens. The third spacer element may be located on the image side of the third lens and partially contact the image side surface of the third lens, and it may abut against the non-optical area of ​​the image side surface of the third lens. The fourth spacer element may be located on the image side of the fourth lens and partially contact the image side surface of the fourth lens, and it may abut against the non-optical area of ​​the image side surface of the fourth lens. The fifth spacer element may be located on the image side of the fifth lens and partially contact the image side surface of the fifth lens, and it may abut against the non-optical area of ​​the image side surface of the fifth lens. The sixth spacing element may be located on the image side of the sixth lens and partially contact the image side surface of the sixth lens, and may abut against a non-optical region on the image side surface of the sixth lens.

[0050] like Figure 1 As shown, the optical camera lens according to an exemplary embodiment of the present application may include a lens barrel P0 that accommodates a lens group and a plurality of spacer elements. Exemplarily, the lens barrel P0 may be an integrated lens barrel for accommodating the first lens E1 to the seventh lens E7 and the first spacer element P1 to the sixth spacer element P6.

[0051] According to an exemplary embodiment of the present application, the spacer element may include at least one spacer. By reasonably setting the number, thickness, inner diameter and outer diameter of the spacer, it is helpful to improve the assembly of the optical camera lens, block stray light, and improve the imaging quality of the optical camera lens.

[0052] In an exemplary embodiment, the first lens may have positive optical power; the second lens may have negative optical power; the third lens may have negative optical power; the fourth lens may have positive optical power; the fifth lens may have negative optical power; the sixth lens may have positive optical power; and the seventh lens may have negative optical power.

[0053] In an exemplary embodiment, the object-side surface of the first lens is convex; the image-side surface of the second lens is concave; and an edge region of the image-side surface of the first lens and an edge region of the object-side surface of the second lens are engaged with each other.

[0054] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: T12<T23, T34<T45, T56<T67, 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0, wherein T12 is the air interval between the first lens and the second lens on the optical axis, T23 is the air interval between the second lens and the third lens on the optical axis, T34 is the air interval between the third lens and the fourth lens on the optical axis, and T45 is the air interval between the fourth lens and the fourth lens on the optical axis. and the fifth lens on the optical axis, T56 is the air spacing between the fifth lens and the sixth lens on the optical axis, T67 is the air spacing between the sixth lens and the seventh lens on the optical axis, L is the distance between the object side end of the lens barrel and the image side end of the lens barrel in the direction along the optical axis, ImgH is half the diagonal length of the effective pixel area on the imaging surface of the optical camera lens, R5 is the curvature radius of the object side of the third lens, f3 is the effective focal length of the third lens, EP23 is the distance between the image side of the second spacing element and the object side of the third spacing element in the direction along the optical axis ( Fig.12 ), CT3 is the center thickness of the third lens on the optical axis, N3 is the refractive index of the third lens, and CP3 is the maximum thickness of the third spacer element ( Fig.12 ).

[0055] In the present application, by reasonably setting the optical power of the seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, and the air spacing between adjacent lenses to satisfy T12<T23, T34<T45, T56<T67, it is beneficial to reasonably arrange the spatial positional relationship between the lenses, effectively adjust the path of the light and the degree of light convergence or divergence, reduce the sensitivity of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the optical power of the seven lenses and the air spacing between adjacent lenses, the object side surface of the first lens is set to be convex, so that the light can be converged to achieve the goal of shooting at a long distance; the image side surface of the second lens is set to be concave, so that the light can be diverged to achieve the goal of shooting at a close distance. At the same time, the edges of the first lens and the second lens are arranged to be interlocked, which not only helps to reduce the size of the optical camera lens, but also helps to improve the stability of the lens structure. On this basis, by setting a plurality of spacer elements, a lens barrel and matching 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0, it is beneficial to make the lens have the characteristics of ultra-thinness, large image surface and high stability of the third lens assembly. Specifically, setting the lens to meet 1.2<L / ImgH<1.4 is beneficial to make the lens have the characteristics of ultra-thinness, large image surface and the like. Generally, the sensitivity of the lens near the middle position in the ultra-thin large image surface lens is relatively large. Based on this, the present application controls the effective focal length of the third lens near the middle position and the radius of curvature of the object side of the third lens within a specific range, and controls the thickness of the third lens, the air interval between adjacent lenses and the adjacent spacer elements to meet 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0, which can effectively reduce the sensitivity of the third lens and improve the assembly stability of the third lens.

[0056] The present application has conducted multiple groups (more than 10 groups) of tests on optical camera lenses that meet different technical parameters. The test results of multiple groups under the same technical parameters are not much different. The following lists as examples the test results of several groups of optical camera lenses that meet different technical parameters.

[0057] As shown in the following table, sample 1 shows the sensitivity between adjacent lenses in a set of optical camera lenses that satisfy 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and EP23 / (CT3×N3)+T23 / CP3=25.0, sample 2 shows the sensitivity between adjacent lenses in a set of optical camera lenses that satisfy 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and EP23 / (CT3×N3)+T23 / CP3=43.66, and sample 3 shows the sensitivity between adjacent lenses in a set of optical camera lenses that satisfy 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and EP23 / (CT3×N3)+T23 / CP3=49.

[0058]

[0059] It can be seen from the above table that samples 1 to 3 all satisfy 1.2<L / ImgH<1.4 and 8.0<R5 / f3<14.5. On this basis, there are certain differences in the optical technical parameters EP23 / (CT3×N3)+T23 / CP3 in samples 1 to 3. When the value of the optical technical parameter EP23 / (CT3×N3)+T23 / CP3 changes, the sensitivity between adjacent lenses, such as the sensitivity Sp2 between the second lens and the third lens, will change significantly. Specifically, EP23 / (CT3×N3)+T23 / CP3=25.0 (i.e. EP23 / (CT3×N3)+T23 / CP3<29.0) in sample 1 makes Sp2=29.32, i.e. Sp2 is large and does not meet the design requirements. In sample 3, EP23 / (CT3×N3)+T23 / CP3=49 (i.e., EP23 / (CT3×N3)+T23 / CP3>44.0), which makes Sp2=27.43, i.e., Sp2 is relatively large and does not meet the design requirements. On the contrary, in sample 2, EP23 / (CT3×N3)+T23 / CP3=43.66 (i.e., 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0), which makes Sp2=11.0, i.e., Sp2 is relatively small and meets the design requirements. It can be seen that the optical technical parameter EP23 / (CT3×N3)+T23 / CP3 has a greater influence on Sp2. Compared with samples 1 and 3, the sensitivity between adjacent lenses in sample 2, such as the sensitivity Sp2 between the second lens and the third lens, is smaller. The present application sets 1.2<L / ImgH<1.4, 8.0<R5 / f3<14.5 and 29.0<EP23 / (CT3×N3)+T23 / CP3<44.0, which can not only reduce the sensitivity caused by the air interval (air gap) between adjacent lenses, but also improve the assembly stability of the optical camera lens, reduce the step difference between lenses, and improve the yield of the lens group.

[0060] also, Fig.13 is the defocus curve of the optical camera lens in sample 2. Fig.13 It can be seen that the positions of the peak values ​​of the defocus curve of the optical camera lens in Sample 2 are relatively concentrated, indicating that the focus offset of the lens is small and the imaging effect is clearer.

[0061] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: 0.8<EP01 / CT1<1.2 and -0.5<(D0s-d0s) / (D1s-d1s)<1.0, wherein EP01 is the spacing distance from the object side end of the lens barrel to the object side surface of the first spacing element in the direction along the optical axis ( Fig.12 ), CT1 is the center thickness of the first lens on the optical axis, and D1s is the outer diameter of the object side of the first spacer element ( Fig.12 ), d1s is the inner diameter of the object side of the first spacing element ( Fig.12 ), D0s is the outer diameter of the object side of the lens tube ( Fig.12 ), d0s is the inner diameter of the object side of the lens tube ( Fig.12 ).

[0062] In the present application, by reasonably setting the focal length of the seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, it is beneficial to effectively adjust the path of the light and the degree of light convergence or divergence, reduce the size of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the focal length of the seven lenses, the object side surface of the first lens is set to be convex, so that the light can be converged to achieve the goal of shooting a long distance; the image side surface of the second lens is set to be concave, so that the light can be diverged to achieve the goal of shooting a close distance. At the same time, the edges of the first lens and the second lens are arranged to be interlocked, which is helpful to reduce the size of the optical camera lens and improve the stability of the lens structure. On this basis, by setting a plurality of spacer elements and a lens barrel and controlling 0.8<EP01 / CT1<1.2, the shape of the first lens can be controlled so that it is not easy to break during assembly, and -0.5<(D0s-d0s) / (D1s-d1s)<1.0 is controlled, which is beneficial to improve the assembly stability of the first lens, ensure the overall shape of the first lens and its assembly stability, and further help to reduce the on-axis spherical aberration and off-axis coma of the lens.

[0063] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: -34.0<f2×N2 / (T23+EP34)<-16.0, wherein f2 is the effective focal length of the second lens, N2 is the refractive index of the second lens, T23 is the air spacing between the second lens and the third lens on the optical axis, and EP34 is the spacing distance from the image side surface of the third spacing element to the object side surface of the fourth spacing element in the direction along the optical axis ( Fig.12 ).

[0064] In the present application, by reasonably setting the focal power of seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, it is beneficial to effectively adjust the path of light and the degree of light convergence or divergence, reduce the size of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the focal power of the seven lenses, setting the object side surface of the first lens as a convex surface can make the light converge to achieve the goal of shooting a long distance; setting the image side surface of the second lens as a concave surface can make the light diverge to achieve the goal of shooting a close distance. At the same time, setting the edges of the first lens and the second lens to be interlocked with each other not only helps to reduce the size of the optical camera lens, but also helps to improve the stability of the lens structure. On this basis, by setting a plurality of spacing elements, a lens barrel and matching -34.0<f2×N2 / (T23+EP34)<-16.0, the deflection angle of the light after passing through the first lens to the fourth lens can be reduced, and the spacing between the second lens and the third lens and the third spacing element and the fourth spacing element can be controlled within a reasonable range, thereby helping to improve the assembly stability of the first lens to the fourth lens.

[0065] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: 0.5<(CT5+T56+CT6) / (EP45+EP56)<1.1, wherein CT5 is the center thickness of the fifth lens on the optical axis, CT6 is the center thickness of the sixth lens on the optical axis, T56 is the air spacing between the fifth lens and the sixth lens on the optical axis, and EP45 is the spacing distance from the image side surface of the fourth spacing element to the object side surface of the fifth spacing element in the direction along the optical axis ( Fig.12 ), EP56 is the distance between the image side of the fifth spacing element and the object side of the sixth spacing element in the direction along the optical axis ( Fig.12 ).

[0066] In the present application, by reasonably setting the focal length of the seven lenses, the surface shape and positional relationship of the edge areas of the first lens and the second lens, it is beneficial to effectively adjust the path of the light and the degree of light convergence or divergence, reduce the size of the lens, and improve the imaging quality and stability of the lens. Specifically, on the basis of reasonably setting the focal length of the seven lenses, the object side surface of the first lens is set to be convex, so that the light can be converged to achieve the goal of shooting a long distance; the image side surface of the second lens is set to be concave, so that the light can be diverged to achieve the goal of shooting a close distance. At the same time, the edges of the first lens and the second lens are arranged to be interlocked, which not only helps to reduce the size of the optical camera lens, but also helps to improve the stability of the lens structure. On this basis, by setting a plurality of spacing elements, a lens barrel and matching 0.5<(CT5+T56+CT6) / (EP45+EP56)<1.1, the apertures of the fifth lens, the sixth lens and the seventh lens can be reduced, and the illumination of the edge field of view can be ensured not to decrease, which is beneficial to ensure the overall brightness of the imaging picture. The present application helps control the overall shape of the fifth lens by controlling the fifth lens and the fourth spacing element and the fifth spacing element; helps control the overall shape of the sixth lens by controlling the sixth lens and the fifth spacing element and the sixth spacing element; and helps control the shape of the sixth lens while ensuring that the off-axis aberration is corrected by controlling the distance between the fifth lens and the sixth lens, which helps stabilize the assembly.

[0067] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: 0.5<(CT3+T34+CT4) / (EP34+EP23)<1.2, wherein CT3 is the center thickness of the third lens on the optical axis, T34 is the air spacing between the third lens and the fourth lens on the optical axis, CT4 is the center thickness of the fourth lens on the optical axis, and EP34 is the spacing distance from the image side surface of the third spacing element to the object side surface of the fourth spacing element in the direction along the optical axis ( Fig.12 ), EP23 is the distance between the image side of the second spacing element and the object side of the third spacing element along the optical axis ( Fig.12 ). Satisfying 0.5<(CT3+T34+CT4) / (EP34+EP23)<1.2 is conducive to controlling the ratio of the center thickness of the third and fourth lenses to the air space between them within a reasonable range, which is further conducive to reducing the field curvature of the optical camera lens and improving the smoothness of the distortion curve of the optical camera lens. The present application is conducive to controlling the overall shape of the third lens by controlling the third lens and the second spacing element and the third spacing element; by controlling the fourth lens and the third spacing element and the fourth spacing element, it is conducive to controlling the overall shape of the third lens; and by controlling the distance between the third lens and the fourth lens, its shape can be controlled while ensuring its correction of off-axis aberrations, which is conducive to assembly stability.

[0068] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: 25.0<EP45 / CP5+T45 / CT5<41.0, wherein EP45 is the spacing distance from the image side surface of the fourth spacing element to the object side surface of the fifth spacing element in the direction along the optical axis ( Fig.12 ), CP5 is the maximum thickness of the fifth spacer element ( Fig.12 ), T45 is the air interval between the fourth lens and the fifth lens on the optical axis, and CT5 is the center thickness of the fifth lens on the optical axis. If 25.0<EP45 / CP5+T45 / CT5<41.0 is satisfied, the shapes of the fifth lens and the sixth lens can be reasonably set, which is beneficial to improving the performance of the lens in clear imaging at macro distance, and at the same time, the lens can have the performance of clear imaging at infinite object distance.

[0069] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: -2.0<(EP56+CP6) / SAG71<-0.4, wherein EP56 is the spacing distance from the image side surface of the fifth spacing element to the object side surface of the sixth spacing element in the direction along the optical axis ( Fig.12 ), CP6 is the maximum thickness of the sixth spacer element ( Fig.12 ), SAG71 is the distance from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis. Satisfying -2.0<(EP56+CP6) / SAG71<-0.4 is helpful to reasonably control the distance between the edges of the fifth and sixth lenses and the distance between the edges of the sixth and seventh lenses, which is beneficial to improve the assembly stability of the fifth spacing element and the sixth spacing element, and improve the assembly stability of the fifth lens to the seventh lens, so as to improve the optical performance of the lens.

[0070] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: 1.0<DT32×D3s / (DT22×D2m)<1.5, wherein DT22 is the maximum effective radius of the image side surface of the second lens, DT32 is the maximum effective radius of the image side surface of the third lens, and D3s is the outer diameter of the object side surface of the third spacer element ( Fig.12 ), D2m is the outer diameter of the image side of the second spacing element ( Fig.12 ). Satisfying 1.0<DT32×D3s / (DT22×D2m)<1.5 is conducive to controlling the aperture-thickness ratio of the second lens and the third lens within a reasonable range, can enhance the strength of the second lens and the third lens, and prevent the second lens and the third lens from being greatly deformed during the assembly process, thereby affecting the imaging quality.

[0071] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: -35.0<R7 / f4<-11.5, wherein f4 is the effective focal length of the fourth lens, and R7 is the radius of curvature of the object side of the fourth lens. Satisfying -35.0<R7 / f4<-11.5 is conducive to reasonably setting the shape and radius of curvature of the fourth lens, thereby improving the imaging quality of the optical camera lens.

[0072] In an exemplary embodiment, the optical camera lens according to the present application may satisfy: 1.4 < f / EPD < 1.6 and 1.0 < (D0m-D0s) / ImgH < 1.5, wherein f is the total effective focal length of the optical camera lens, EPD is the entrance pupil diameter of the optical camera lens, and D0m is the outer diameter of the image side end of the lens barrel ( Fig.12 ), D0s is the outer diameter of the object side of the lens tube ( Fig.12 ), ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the optical camera lens. When 1.4<f / EPD<1.6 is satisfied, the incident range of light can be effectively controlled, which helps to improve the imaging quality and brightness of the lens. At the same time, when 1.0<(D0m-D0s) / ImgH<1.5 is satisfied, it helps to achieve the miniaturization of the optical camera lens while ensuring that the lens has good imaging performance.

[0073] In an exemplary embodiment, the optical camera lens according to the present application further includes an aperture arranged between the second lens and the third lens. Optionally, the optical camera lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the imaging surface. The present application proposes an optical camera lens having the characteristics of miniaturization, large image plane, good assembly stability, small step difference, low sensitivity, high stability, high yield rate and high imaging quality. The optical camera lens according to the above embodiment of the present application may use multiple lenses, such as the seven lenses mentioned above. By reasonably allocating the focal length, surface shape, material, center thickness of each lens and the on-axis spacing between each lens, the incident light can be effectively converged, the total optical length of the optical camera lens can be reduced and the processability of the optical camera lens can be improved, so that the optical camera lens is more conducive to production and processing. In the optical camera lens of the above embodiment of the present application, by arranging a spacer element between adjacent lenses and designing the inner and outer diameters of the spacer element according to the optical path, stray light can be effectively blocked and eliminated, and the imaging quality of the lens can be improved.

[0074] In the embodiment of the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface, that is, at least one of the mirror surfaces from the object side of the first lens to the image side of the seventh lens is an aspherical mirror surface. The characteristic of the aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration occurring during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens is an aspherical mirror surface. Optionally, the object side and image side of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are all aspherical mirror surfaces.

[0075] However, it should be understood by those skilled in the art that, without departing from the technical solution claimed in the present application, the number of lenses constituting the optical camera lens can be changed to obtain the various results and advantages described in this specification. For example, although seven lenses are described as an example in the embodiment, the optical camera lens is not limited to including seven lenses. If necessary, the optical camera lens may also include other numbers of lenses.

[0076] Specific embodiments of the optical camera lens applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0077] Example 1

[0078] The following reference Figure 1 An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1 An optical imaging lens according to Example 1 is shown.

[0079] like Figure 1 As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0080] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is concave. The seventh lens E7 has negative power, and its object side surface S13 is convex, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

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

[0082]

[0083] Table 1

[0084] In this example, the total effective focal length f of the optical camera lens is 7.31 mm, half of the diagonal length of the effective pixel area on the imaging plane of the optical camera lens ImgH is 6.65 mm, the maximum effective radius DT22 of the image side surface of the second lens is 2.05 mm, the maximum effective radius DT32 of the image side surface of the third lens is 2.33 mm, and the distance SAG71 from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis is -1.22 mm.

[0085] like Figure 1 As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0086] Table 2-1 and Table 2-2 show basic parameter tables of each spacing element in the optical camera lens of Example 1, wherein the unit of each parameter is millimeter (mm).

[0087] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.235 0.717 0.564 0.810 0.663 5.081 5.940 13.400

[0088] Table 2-1

[0089] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.570 5.801 5.906 7.500 0.022 0.024 0.582 8.331

[0090] Table 2-2

[0091] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0092] In Example 1, the object side surface and the image side surface of any lens among the first lens E1 to the seventh lens E7 are both aspherical surfaces, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0093]

[0094] Wherein, 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 (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. The following Tables 3-1 and 3-2 give the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, A40, A41, A42, A43, A44, A45, A46, A47, A48, A49, A50, A51, A52, A53, A54, A55, A56, A57, A58, A59, A60, A61, A71, A72, A73, A74, A75, A76, A77, A8, A9, A10, A11, A12, A13, A14, A15 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0095] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.59E-02 -5.41E-03 -6.21E-03 -2.51E-03 -7.24E-04 -3.60E-05 4.39E-05 S2 -1.07E-01 2.51E-02 -1.16E-02 3.54E-03 -1.18E-03 3.95E-04 1.55E-05 S3 -1.04E-01 6.26E-02 -2.45E-03 6.39E-03 -4.53E-04 4.20E-04 7.57E-05 S4 -1.44E-02 2.47E-02 1.87E-03 2.42E-03 4.78E-04 2.06E-04 9.72E-05 S5 -3.21E-01 -1.50E-02 1.37E-03 1.47E-03 3.35E-04 -5.93E-05 -4.80E-06 S6 -3.88E-01 1.62E-02 1.79E-02 4.41E-04 8.56E-04 -9.69E-04 -4.04E-05 S7 -1.02E-01 2.53E-02 1.73E-02 -1.24E-04 4.22E-03 -7.57E-04 -1.07E-04 S8 -3.41E-01 -8.45E-05 1.59E-02 6.28E-03 9.50E-03 4.42E-03 2.17E-03 S9 -7.22E-01 -1.61E-01 2.18E-02 3.43E-03 6.88E-03 3.95E-03 1.57E-03 S10 -2.02E+00 4.77E-01 -3.42E-02 2.43E-03 -2.67E-02 8.28E-03 1.26E-03 S11 -4.64E+00 4.84E-01 1.45E-01 2.81E-02 -3.41E-02 -9.72E-03 -4.67E-03 S12 -1.96E+00 -3.02E-01 1.25E-01 -7.05E-02 3.43E-02 -1.44E-02 2.65E-03 S13 -5.50E-02 1.28E-02 -2.68E-03 4.93E-04 -6.61E-05 6.21E-06 -4.20E-07 S14 -5.92E-02 1.60E-02 -3.79E-03 7.00E-04 -9.63E-05 9.79E-06 -7.33E-07

[0096] Table 3-1

[0097] Face number A18 A20 A22 A24 A26 A28 A30 S1 6.97E-05 7.39E-06 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 S2 8.23E-05 7.42E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 S3 8.61E-05 7.48E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 S4 2.31E-05 2.73E-05 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 S5 -1.22E-05 -4.71E-07 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 S6 -2.45E-04 -8.19E-06 -6.65E-05 2.35E-05 0.00E+00 0.00E+00 0.00E+00 S7 -4.22E-04 -6.41E-06 -5.25E-05 7.66E-05 0.00E+00 0.00E+00 0.00E+00 S8 6.12E-04 1.96E-04 -1.48E-04 -1.34E-04 -1.54E-04 -8.31E-05 -6.73E-05 S9 -9.50E-04 -6.18E-04 -6.06E-04 -2.04E-04 -6.89E-05 5.82E-05 4.72E-05 S10 8.43E-04 2.56E-04 -5.00E-04 -1.68E-04 1.79E-05 2.22E-05 -4.18E-05 S11 4.96E-03 3.25E-03 -6.21E-04 -1.75E-03 -1.04E-04 4.53E-04 1.59E-04 S12 1.72E-03 3.04E-03 -1.92E-05 -1.35E-04 -6.19E-05 -1.66E-04 -1.01E-04 S13 2.10E-08 -7.91E-10 2.23E-11 -4.61E-13 6.56E-15 -5.71E-17 2.28E-19 S14 4.03E-08 -1.62E-09 4.70E-11 -9.50E-13 1.27E-14 -1.01E-16 3.62E-19

[0098] Table 3-2

[0099] Example 2

[0100] The following reference Figure 2 The optical camera lens according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 2 An optical imaging lens according to Example 2 is shown.

[0101] like Figure 2As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0102] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 may be the same as the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 in Example 1. Therefore, the basic parameter table of the optical camera lens of this example is completely the same as the basic parameters shown in Table 1 in Example 1. To avoid redundant description, this example will not be described in detail. For details, please refer to the relevant contents disclosed in Example 1.

[0103] In this example, the high-order coefficients of the aspherical mirror surfaces S1-S14 may be the same as the high-order coefficients of the aspherical mirror surfaces S1-S14 shown in Tables 3-1 and 3-2 in Example 1. Therefore, to avoid redundancy, this example does not introduce the high-order coefficients of the aspherical mirror surfaces S1-S14 in detail, and the details can be referred to the relevant contents disclosed in Example 1.

[0104] In this example, the values ​​of the optical technical parameters f, ImgH, DT22, DT32 and SAG71 may be the same as the values ​​of f, ImgH, DT22, DT32 and SAG71 in Example 1. Therefore, to avoid redundancy, this example does not introduce the values ​​of these parameters in detail, and the details can be referred to the relevant contents disclosed in Example 1.

[0105] like Figure 2 As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0106] Table 4-1 and Table 4-2 show basic parameter tables of each spacing element in the optical camera lens of Example 2, wherein the unit of each parameter is millimeter (mm).

[0107] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.291 0.717 0.654 0.810 0.663 5.081 5.940 13.400

[0108] Table 4-1

[0109] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.570 6.904 5.906 7.500 0.022 0.024 0.583 8.331

[0110] Table 4-2

[0111] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0112] Example 3

[0113] The following reference Figure 3 An optical imaging lens according to Embodiment 3 of the present application is described. Figure 3 An optical imaging lens according to Example 3 is shown.

[0114] like Figure 3 As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0115] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 may be the same as the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 in Example 1. Therefore, the basic parameter table of the optical camera lens of this example is completely the same as the basic parameters shown in Table 1 in Example 1. To avoid redundant description, this example will not be described in detail. For details, please refer to the relevant contents disclosed in Example 1.

[0116] In this example, the high-order coefficients of the aspherical mirror surfaces S1-S14 may be the same as the high-order coefficients of the aspherical mirror surfaces S1-S14 shown in Tables 3-1 and 3-2 in Example 1. Therefore, to avoid redundancy, this example does not introduce the high-order coefficients of the aspherical mirror surfaces S1-S14 in detail, and the details can be referred to the relevant contents disclosed in Example 1.

[0117] In this example, the values ​​of the optical technical parameters f, ImgH, DT22, DT32 and SAG71 may be the same as the values ​​of f, ImgH, DT22, DT32 and SAG71 in Example 1. Therefore, to avoid redundancy, this example does not introduce the values ​​of these parameters in detail, and the details can be referred to the relevant contents disclosed in Example 1.

[0118] like Figure 3As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0119] Table 5-1 and Table 5-2 show basic parameter tables of each spacing element in the optical camera lens of Example 3, wherein the unit of each parameter is millimeter (mm).

[0120] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.291 0.717 0.564 0.810 0.663 5.081 5.940 13.400

[0121] Table 5-1

[0122] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.570 6.894 7.190 7.500 0.022 0.024 0.583 8.331

[0123] Table 5-2

[0124] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0125] Figure 4A The axial chromatic aberration curves of the optical camera lenses of Examples 1 to 3 are shown, which indicate the deviation of the focusing point of light rays of different wavelengths after passing through the lens group. Figure 4B The astigmatism curves of the optical imaging lenses of Examples 1 to 3 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Figure 4A and Figure 4B It can be seen that the optical camera lenses provided in Examples 1 to 3 can achieve good imaging quality.

[0126] Example 4

[0127] The following reference Figure 5 An optical imaging lens according to Embodiment 4 of the present application is described. Figure 5 An optical imaging lens according to Example 4 is shown.

[0128] like Figure 5 As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0129] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative power, and its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is concave. The seventh lens E7 has negative power, and its object side surface S13 is convex, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0130] Table 6 shows a basic parameter table of the optical camera lens of Example 4, wherein the units of the curvature radius, thickness / distance and focal length are all millimeters (mm).

[0131]

[0132] Table 6

[0133] In this example, the total effective focal length f of the optical camera lens is 7.62 mm, half of the diagonal length of the effective pixel area on the imaging plane of the optical camera lens ImgH is 6.65 mm, the maximum effective radius DT22 of the image side surface of the second lens is 1.98 mm, the maximum effective radius DT32 of the image side surface of the third lens is 2.29 mm, and the distance SAG71 from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis is -1.64 mm.

[0134] like Figure 5 As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0135] Table 7-1 and Table 7-2 show basic parameter tables of each spacing element in the optical camera lens of Example 4, wherein the unit of each parameter is millimeter (mm).

[0136] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.459 0.882 1.084 0.957 0.730 5.081 5.940 13.400

[0137] Table 7-1

[0138] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.425 5.855 5.850 7.518 0.025 0.024 0.028 8.900

[0139] Table 7-2

[0140] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0141] Tables 8-1 and 8-2 below show the high-order coefficients of each aspherical mirror surface that can be used in Example 4, wherein each aspherical surface shape can be defined by the formula (1) given in Example 1 above.

[0142] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.73E-03 -6.84E-03 -3.37E-03 -1.07E-03 -2.79E-04 -6.67E-05 -1.94E-05 S2 -1.32E-02 9.82E-03 -4.13E-03 1.72E-03 -8.29E-04 2.48E-04 -1.14E-04 S3 -1.89E-02 3.02E-02 -3.77E-04 2.11E-03 -7.20E-04 1.77E-04 -9.72E-05 S4 -7.06E-03 8.70E-03 1.08E-03 5.49E-04 8.74E-05 3.28E-05 4.86E-06 S5 -1.99E-01 -8.91E-03 1.04E-03 5.47E-04 8.86E-05 -1.02E-06 6.16E-06 S6 -2.64E-01 1.46E-02 7.41E-03 -1.16E-03 4.71E-04 -2.15E-04 8.37E-05 S7 -9.25E-02 2.64E-02 4.85E-03 -3.73E-03 1.38E-03 -1.52E-04 1.71E-04 S8 -2.55E-01 9.71E-03 6.59E-03 -3.75E-03 2.56E-03 1.09E-04 4.18E-04 S9 -5.68E-01 -1.25E-01 1.86E-02 -1.03E-02 5.82E-03 -1.85E-04 1.11E-03 S10 -9.18E-01 1.55E-02 7.29E-02 -1.37E-02 5.05E-03 -5.07E-03 1.71E-03 S11 -2.35E+00 -1.02E-02 5.89E-02 1.86E-02 2.47E-03 -5.54E-03 1.56E-03 S12 -3.14E+00 6.63E-02 -2.36E-02 -1.78E-02 -1.11E-03 -1.62E-03 9.48E-04 S13 -6.43E-02 1.18E-02 -1.81E-03 2.18E-04 -1.43E-05 -9.23E-08 1.08E-07 S14 -6.15E-02 1.39E-02 -2.50E-03 3.34E-04 -3.22E-05 2.24E-06 -1.13E-07

[0143] Table 8-1

[0144]

[0145]

[0146] Table 8-2

[0147] Example 5

[0148] The following reference Figure 6 An optical imaging lens according to Embodiment 5 of the present application is described. Figure 6 An optical imaging lens according to Example 5 is shown.

[0149] like Figure 6 As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0150] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 may be the same as the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 in Example 4. Therefore, the basic parameter table of the optical camera lens in this example is completely the same as the basic parameters shown in Table 6 in Example 4. To avoid redundant description, this example will not be described in detail. For details, please refer to the relevant contents disclosed in Example 4.

[0151] In this example, the high-order coefficients of the aspherical mirror surfaces S1-S14 may be the same as the high-order coefficients of the aspherical mirror surfaces S1-S14 shown in Tables 8-1 and 8-2 in Example 4. Therefore, to avoid redundancy, this example does not introduce the high-order coefficients of the aspherical mirror surfaces S1-S14 in detail, and the details can be referred to the relevant contents disclosed in Example 4.

[0152] In this example, the values ​​of the optical technical parameters f, ImgH, DT22, DT32 and SAG71 may be the same as the values ​​of f, ImgH, DT22, DT32 and SAG71 in Example 4. Therefore, to avoid redundancy, this example does not introduce the values ​​of these parameters in detail, and the details can be referred to the relevant contents disclosed in Example 4.

[0153] like Figure 6 As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0154] Table 9-1 and Table 9-2 show basic parameter tables of each spacing element in the optical camera lens of Example 5, wherein the unit of each parameter is millimeter (mm).

[0155] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.459 0.882 0.729 0.957 1.084 5.940 5.081 13.400

[0156] Table 9-1

[0157] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.425 7.000 5.850 7.518 0.022 0.027 0.028 8.900

[0158] Table 9-2

[0159] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0160] Example 6

[0161] The following reference Figure 7 An optical imaging lens according to Embodiment 6 of the present application is described. Figure 7 An optical imaging lens according to Example 6 is shown.

[0162] like Figure 7As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0163] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 may be the same as the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 in Example 4. Therefore, the basic parameter table of the optical camera lens in this example is completely the same as the basic parameters shown in Table 6 in Example 4. To avoid redundant description, this example will not be described in detail. For details, please refer to the relevant contents disclosed in Example 4.

[0164] In this example, the high-order coefficients of the aspherical mirror surfaces S1-S14 may be the same as the high-order coefficients of the aspherical mirror surfaces S1-S14 shown in Tables 8-1 and 8-2 in Example 4. Therefore, to avoid redundancy, this example does not introduce the high-order coefficients of the aspherical mirror surfaces S1-S14 in detail, and the details can be referred to the relevant contents disclosed in Example 4.

[0165] In this example, the values ​​of the optical technical parameters f, ImgH, DT22, DT32 and SAG71 may be the same as the values ​​of f, ImgH, DT22, DT32 and SAG71 in Example 4. Therefore, to avoid redundancy, this example does not introduce the values ​​of these parameters in detail, and the details can be referred to the relevant contents disclosed in Example 4.

[0166] like Figure 7 As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0167] Table 10-1 and Table 10-2 show basic parameter tables of each spacing element in the optical camera lens of Example 6, wherein the unit of each parameter is millimeter (mm).

[0168] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.459 0.882 0.729 0.957 1.084 5.940 5.081 13.400

[0169] Table 10-1

[0170] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.425 6.990 7.218 7.518 0.022 0.024 0.028 8.900

[0171] Table 10-2

[0172] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0173] Fig. 8A The axial chromatic aberration curves of the optical camera lenses of Examples 4 to 6 are shown, which indicate the deviation of the focusing point of light rays of different wavelengths after passing through the lens group. Figure 8B The astigmatism curves of the optical imaging lenses of Examples 4 to 6 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Fig. 8A and Figure 8B It can be seen that the optical camera lenses provided in Examples 4 to 6 can achieve good imaging quality.

[0174] Example 7

[0175] The following reference Fig. 9 An optical imaging lens according to Embodiment 7 of the present application is described. Fig. 9 An optical imaging lens according to Example 7 is shown.

[0176] like Fig. 9 As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0177] The first lens E1 has positive power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has negative power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive power, and its object side surface S7 is concave, and its image side surface S8 is convex. The fifth lens E5 has negative power, and its object side surface S9 is convex, and its image side surface S10 is concave. The sixth lens E6 has positive power, and its object side surface S11 is convex, and its image side surface S12 is concave. The seventh lens E7 has negative power, and its object side surface S13 is convex, and its image side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. The light from the object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface S17.

[0178] Table 11 shows the basic parameters of the optical camera lens of Example 7, wherein the units of the radius of curvature, thickness / distance and focal length are all in millimeters (mm).

[0179]

[0180] Table 11

[0181] In this example, the total effective focal length f of the optical camera lens is 6.91 mm, half of the diagonal length of the effective pixel area on the imaging plane of the optical camera lens ImgH is 6.65 mm, the maximum effective radius DT22 of the image side surface of the second lens is 1.85 mm, the maximum effective radius DT32 of the image side surface of the third lens is 2.15 mm, and the distance SAG71 from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis is -0.95 mm.

[0182] like Fig. 9 As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0183] Table 12-1 and Table 12-2 show basic parameter tables of each spacing element in the optical camera lens of Example 7, wherein the unit of each parameter is millimeter (mm).

[0184] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.235 0.789 0.469 0.793 1.439 5.081 5.940 13.400

[0185] Table 12-1

[0186] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.472 5.801 5.869 7.500 0.022 0.024 0.028 8.172

[0187] Table 12-2

[0188] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0189] The following Tables 13-1 and 13-2 show the high-order coefficients of each aspherical mirror surface that can be used in Example 7, wherein each aspherical surface shape can be defined by the formula (1) given in the above Example 1.

[0190] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.46E-03 -1.34E-02 -7.07E-03 -2.50E-03 -6.95E-04 -1.44E-04 -9.68E-06 S2 7.62E-03 -8.18E-05 -5.55E-03 3.82E-04 -1.20E-03 2.66E-04 -1.24E-04 S3 2.07E-02 4.02E-02 3.16E-03 2.14E-03 -8.32E-04 1.73E-04 -8.98E-05 S4 -7.13E-04 2.00E-02 4.60E-03 1.97E-03 5.66E-04 2.07E-04 6.82E-05 S5 -2.72E-01 -5.85E-03 5.00E-03 1.59E-03 3.04E-04 5.70E-05 1.02E-06 S6 -2.68E-01 1.76E-02 1.11E-02 -1.62E-03 9.19E-04 -6.00E-04 -9.21E-05 S7 -6.70E-02 1.91E-02 2.83E-03 -2.06E-03 2.76E-03 -6.82E-04 -1.23E-04 S8 -3.21E-01 1.36E-02 1.72E-03 5.53E-03 6.43E-03 2.19E-03 9.57E-04 S9 -1.29E+00 -1.43E-01 3.48E-02 1.75E-02 1.67E-02 5.68E-03 2.44E-03 S10 -1.37E+00 1.37E-01 7.01E-02 -8.99E-03 -7.51E-03 -2.08E-03 2.68E-03 S11 -3.32E+00 2.85E-01 1.13E-01 1.60E-02 -2.05E-02 -4.23E-03 2.45E-03 S12 -3.37E+00 2.51E-01 -6.50E-02 -1.28E-02 7.26E-04 -4.79E-03 3.73E-04 S13 -7.79E-02 1.32E-02 -4.27E-04 -4.58E-04 1.41E-04 -2.22E-05 2.22E-06 S14 -7.50E-02 1.76E-02 -3.16E-03 4.23E-04 -4.25E-05 3.26E-06 -1.98E-07

[0191] Table 13-1

[0192]

[0193]

[0194] Table 13-2

[0195] Example 8

[0196] The following reference Fig.10 An optical imaging lens according to Example 8 of the present application is described. Fig.10 An optical imaging lens according to Example 8 is shown.

[0197] like Fig.10 As shown, the optical camera lens includes, from the object side to the image side, a first lens E1, a second lens E2, an aperture STO (not shown), a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, a filter E8 and an imaging surface S17.

[0198] In this example, the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 may be the same as the structures and parameters of the first lens E1, the second lens E2, the aperture STO, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, the seventh lens E7, the filter E8 and the imaging surface S17 in Example 7. Therefore, the basic parameter table of the optical camera lens in this example is completely the same as the basic parameters shown in Table 11 in Example 7. To avoid redundant description, this example will not be described in detail. For details, please refer to the relevant contents disclosed in Example 7.

[0199] In this example, the high-order coefficients of the aspherical mirror surfaces S1-S14 may be the same as the high-order coefficients of the aspherical mirror surfaces S1-S14 shown in Tables 13-1 and 13-2 in Example 7. Therefore, to avoid redundancy, this example does not introduce the high-order coefficients of the aspherical mirror surfaces S1-S14 in detail, and the details can be referred to the relevant contents disclosed in Example 7.

[0200] In this example, the values ​​of the optical technical parameters f, ImgH, DT22, DT32 and SAG71 may be the same as the values ​​of f, ImgH, DT22, DT32 and SAG71 in Example 7. Therefore, to avoid redundancy, this example does not introduce the values ​​of these parameters in detail, and the details can be referred to the relevant contents disclosed in Example 7.

[0201] like Fig.10 As shown, the optical camera lens may include six spacing elements, namely, a first spacing element P1, a second spacing element P2, a third spacing element P3, a fourth spacing element P4, a fifth spacing element P5 and a sixth spacing element P6. The lens barrel P0 may accommodate the first lens E1 to the seventh lens E7 and the first spacing element P1 to the sixth spacing element P6.

[0202] Table 14-1 and Table 14-2 show basic parameter tables of each spacing element in the optical camera lens of Example 7, wherein the unit of each parameter is millimeter (mm).

[0203] parameter EP01 EP23 EP34 EP45 EP56 d0s D0s D0m Numeric 1.235 0.789 0.469 0.793 0.950 5.081 5.940 13.400

[0204] Table 14-1

[0205] parameter d1s D1s D2m D3s CP3 CP5 CP6 L Numeric 4.472 5.801 5.869 7.500 0.022 0.032 0.022 8.172

[0206] Table 14-2

[0207] It should be understood that in this example, the structures and parameters of each spacing element are only exemplarily listed, and the specific structure and actual parameters of each spacing element are not explicitly defined. In actual production, the specific structure and actual parameters of each spacing element can be set in any appropriate manner.

[0208] Fig.11A The axial chromatic aberration curves of the optical camera lenses of Examples 7 and 8 are shown, which indicate the deviation of the focusing point of light rays of different wavelengths after passing through the lens group. Fig. 11B The astigmatism curves of the optical imaging lenses of Examples 7 and 8 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Fig.11A and Fig. 11B It can be seen that the optical camera lenses provided in Examples 7 and 8 can achieve good imaging quality.

[0209] In summary, Examples 1 to 8 satisfy the relationships shown in Tables 15-1 and 15-2, respectively.

[0210] Conditional / Example Example 1 Example 2 Example 3 Example 4 L / ImgH 1.25 1.25 1.25 1.34 f2×N2 / (T23+EP34) -33.02 -33.02 -33.02 -16.03 R5 / f3 8.13 8.13 8.13 13.47 R7 / f4 -11.79 -11.79 -11.79 -34.56 DT32×D3s / (DT22×D2m) 1.44 1.44 1.19 1.49 EP01 / CT1 1.03 1.07 1.07 0.96 (D0s-d0s) / (D1s-d1s) 0.70 0.37 0.37 0.60 EP23 / (CT3×N3)+T23 / CP3 43.66 43.66 43.66 29.82 (CT3+T34+CT4) / (EP34+EP23) 1.16 1.08 1.16 0.81 EP45 / CP5+T45 / CT5 35.30 35.30 35.30 40.76 (CT5+T56+CT6) / (EP45+EP56) 0.90 0.90 0.90 1.07 (EP56+CP6) / SAG71 -1.02 -1.02 -1.02 -0.46 (D0m-D0s) / ImgH 1.12 1.12 1.12 1.12 f / EPD 1.52 1.52 1.52 1.48

[0211] Table 15-1

[0212]

[0213]

[0214] Table 15-2

[0215] The present application also provides an imaging device, whose electronic photosensitive element can be a photosensitive coupled device (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device can be an independent imaging device such as a digital camera, or an imaging module integrated in a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical camera lens described above.

[0216] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. An optical camera lens, characterized in that: include: A lens group, comprising, in order from the object side to the image side along the optical axis, a first lens with positive optical power, a second lens with negative optical power, a third lens with negative optical power, a fourth lens with positive optical power, a fifth lens with negative optical power, a sixth lens with positive optical power and a seventh lens with negative optical power, wherein the object side surface of the first lens is convex and the image side surface is concave, the object side surface of the second lens is convex and the image side surface is concave, the object side surface and the image side surface of the third lens are both concave, the object side surface of the fourth lens is concave and the image side surface is convex, the image side surface of the fifth lens is concave, the object side surface of the sixth lens is convex and the image side surface is concave, the object side surface of the seventh lens is convex and the image side surface is concave, the edge area of ​​the image side surface of the first lens and the edge area of ​​the object side surface of the second lens are mutually engaged, and the number of lenses with optical power in the lens group is seven; a plurality of spacer elements, including a third spacer element located on the image side of the third lens and in partial contact with the image side surface of the third lens, and a fourth spacer element located on the image side of the fourth lens and in partial contact with the image side surface of the fourth lens; as well as A lens barrel, for accommodating the lens group and the plurality of spacer elements; The optical camera lens satisfies: -33.02≤f2×N2 / (T23+EP34)≤-16.03, wherein f2 is the effective focal length of the second lens, N2 is the refractive index of the second lens, T23 is the air gap between the second lens and the third lens on the optical axis, and EP34 is the spacing distance from the image side surface of the third spacing element to the object side surface of the fourth spacing element in the direction along the optical axis.

2. The optical camera lens according to claim 1, wherein: The plurality of spacer elements further include a second spacer element located on the image side of the second lens and partially in contact with the image side surface of the second lens, The optical camera lens satisfies: 29.82≤EP23 / (CT3×N3)+T23 / CP3≤43.66, wherein EP23 is the spacing distance from the image side surface of the second spacing element to the object side surface of the third spacing element in the direction along the optical axis, CT3 is the center thickness of the third lens on the optical axis, N3 is the refractive index of the third lens, and CP3 is the maximum thickness of the third spacing element.

3. The optical camera lens according to claim 1, wherein: The plurality of spacer elements further include a second spacer element located on the image side of the second lens and partially in contact with the image side surface of the second lens, The optical camera lens satisfies: 0.81≤(CT3+T34+CT4) / (EP34+EP23)≤1.16, wherein CT3 is the center thickness of the third lens on the optical axis, T34 is the air spacing between the third lens and the fourth lens on the optical axis, CT4 is the center thickness of the fourth lens on the optical axis, and EP23 is the spacing distance from the image side surface of the second spacing element to the object side surface of the third spacing element in the direction along the optical axis.

4. The optical camera lens according to claim 1, wherein: The plurality of spacer elements further include a fifth spacer element located on the image side of the fifth lens and partially in contact with the image side surface of the fifth lens, The optical camera lens satisfies: 26.48≤EP45 / CP5+T45 / CT5≤40.76, wherein EP45 is the spacing distance from the image side surface of the fourth spacing element to the object side surface of the fifth spacing element in the direction along the optical axis, CP5 is the maximum thickness of the fifth spacing element, T45 is the air spacing between the fourth lens and the fifth lens on the optical axis, and CT5 is the center thickness of the fifth lens on the optical axis.

5. The optical camera lens according to claim 1, wherein: The plurality of spacer elements further include a fifth spacer element located on the image side of the fifth lens and in partial contact with the image side surface of the fifth lens, and a sixth spacer element located on the image side of the sixth lens and in partial contact with the image side surface of the sixth lens. The optical camera lens satisfies: 0.67≤(CT5+T56+CT6) / (EP45+EP56)≤1.07, wherein CT5 is the center thickness of the fifth lens on the optical axis, T56 is the air spacing between the fifth lens and the sixth lens on the optical axis, CT6 is the center thickness of the sixth lens on the optical axis, EP45 is the spacing distance from the image side surface of the fourth spacing element to the object side surface of the fifth spacing element in the direction along the optical axis, and EP56 is the spacing distance from the image side surface of the fifth spacing element to the object side surface of the sixth spacing element in the direction along the optical axis.

6. The optical camera lens according to claim 1, wherein: The plurality of spacer elements further include a first spacer element located on the image side of the first lens and partially in contact with the image side surface of the first lens, The optical camera lens satisfies: 0.96≤EP01 / CT1≤1.07 and -0.33≤(D0s-d0s) / (D1s-d1s)≤0.70, wherein EP01 is the spacing distance from the object side end of the lens barrel to the object side surface of the first spacing element in the direction along the optical axis, CT1 is the center thickness of the first lens on the optical axis, D1s is the outer diameter of the object side surface of the first spacing element, d1s is the inner diameter of the object side surface of the first spacing element, D0s is the outer diameter of the object side end of the lens barrel, and d0s is the inner diameter of the object side end of the lens barrel.

7. The optical camera lens according to claim 1, wherein: The plurality of spacer elements further include a fifth spacer element located on the image side of the fifth lens and in partial contact with the image side surface of the fifth lens, and a sixth spacer element located on the image side of the sixth lens and in partial contact with the image side surface of the sixth lens. The optical camera lens satisfies: -1.55≤(EP56+CP6) / SAG71≤-0.46, wherein EP56 is the spacing distance from the image side surface of the fifth spacing element to the object side surface of the sixth spacing element in the direction along the optical axis, CP6 is the maximum thickness of the sixth spacing element, and SAG71 is the distance from the intersection of the object side surface of the seventh lens and the optical axis to the vertex of the effective radius of the object side surface of the seventh lens on the optical axis.

8. The optical camera lens according to any one of claims 1 to 7, characterized in that: The plurality of spacer elements further include a second spacer element located on the image side of the second lens and partially in contact with the image side surface of the second lens, The optical camera lens satisfies: 1.19≤DT32×D3s / (DT22×D2m)≤1.49, wherein DT22 is the maximum effective radius of the image side surface of the second lens, DT32 is the maximum effective radius of the image side surface of the third lens, D3s is the outer diameter of the object side surface of the third spacing element, and D2m is the outer diameter of the image side surface of the second spacing element.

9. The optical camera lens according to any one of claims 1 to 7, characterized in that: The optical camera lens satisfies: -34.56≤R7 / f4≤-11.79, wherein f4 is the effective focal length of the fourth lens, and R7 is the radius of curvature of the object side surface of the fourth lens.

10. The optical camera lens according to any one of claims 1 to 7, characterized in that: The optical camera lens satisfies: 1.48≤f / EPD≤1.52 and 1.12≤(D0m-D0s) / ImgH≤1.25, wherein f is the total effective focal length of the optical camera lens, EPD is the entrance pupil diameter of the optical camera lens, D0m is the outer diameter of the image side end of the lens barrel, D0s is the outer diameter of the object side end of the lens barrel, and ImgH is half of the diagonal length of the effective pixel area on the imaging plane of the optical camera lens.

11. The optical camera lens according to any one of claims 1 to 7, characterized in that: The optical camera lens satisfies: T12<T23, T34<T45, T56<T67, wherein T12 is the air interval between the first lens and the second lens on the optical axis, T34 is the air interval between the third lens and the fourth lens on the optical axis, T45 is the air interval between the fourth lens and the fifth lens on the optical axis, T56 is the air interval between the fifth lens and the sixth lens on the optical axis, and T67 is the air interval between the sixth lens and the seventh lens on the optical axis.

12. The optical camera lens according to any one of claims 1 to 7, characterized in that: The optical camera lens satisfies: 1.23≤L / ImgH≤1.34, wherein L is the spacing distance from the object side end of the lens barrel to the image side end of the lens barrel in the direction along the optical axis, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the optical camera lens.

13. The optical camera lens according to any one of claims 1 to 7, characterized in that: The optical camera lens satisfies: 8.13≤R5 / f3≤14.35, wherein R5 is the radius of curvature of the object side surface of the third lens, and f3 is the effective focal length of the third lens.

Images