Optical photographic lens

Abstract

The utility model discloses an optical photographic lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and a plurality of spacing elements, wherein the first lens is configured to enable light entering the first lens from an object side along a Y optical axis to be reflected and then to be emitted along an X optical axis perpendicular to the Y optical axis; the second lens, the third lens and the seventh lens are sequentially arranged from the first lens to an image side along the X optical axis; the plurality of spacing elements at least comprise a second spacing element which is positioned between the second lens and the third lens and is in direct contact with the image side surface of the second lens, and a third spacing element which is positioned between the third lens and the fourth lens and is in direct contact with the image side surface of the third lens. The maximum thickness CP2 of the second spacing element in the X-optical axis direction, the maximum thickness CP3 of the third spacing element in the X-optical axis direction, the air spacing T23 of the second lens and the third lens on the X-optical axis, and the curvature radii R5 and R6 of the object side surface and the image side surface of the third lens satisfy 2.9 < CP2 / T23 < 6.0 and 65.0 < (R5 * CP2) / (R6 * CP3) < 142.0.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and more specifically, to an optical photography lens. Background Art

[0002] As the speed of mobile phone replacement continues to accelerate, the design requirements for mobile phone lenses, as one of the components, are becoming increasingly higher, and they need to have features such as small size and high performance. Among them, internal focus lenses are gradually being developed and applied to mobile phone lens groups due to their high stability, rapid zoom, good cleanliness, and ability to overcome the disadvantages of easy wear of external focus. However, due to the relatively complex internal structure of such lenses and factors such as mobile phone space limitations, the design and development of lenses is difficult and requires overcoming many difficulties and challenges, such as how to reasonably distribute the lens group, how to reasonably design the black object bearing structure according to the distance and position between lenses to ensure processability and stability after actual assembly, as well as design space, cost, and stray light. Utility Model Content

[0003] The present application provides an optical photography lens, which may include: a first lens, the first lens is configured so that light incident on the first lens from the object side along the Y optical axis direction is reflected and then emitted from the first lens along the X optical axis direction, wherein the Y optical axis is perpendicular to the X optical axis; a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged in sequence from the first lens to the image side along the X optical axis; and a plurality of spacer elements, the plurality of spacer elements at least including: a second spacer element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacer element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens. The optical photography lens satisfies: 2.9<CP2 / T23<6.0 and 65.0<(R5×CP2) / (R6×CP3)<142.0, wherein CP2 is the maximum thickness of the second spacing element along the X-ray axis, T23 is the air spacing between the second lens and the third lens on the X-ray axis, R5 is the curvature radius of the object side surface of the third lens, R6 is the curvature radius of the image side surface of the third lens, and CP3 is the maximum thickness of the third spacing element along the X-ray axis.

[0004] In one embodiment, the optical photography lens further includes a first lens barrel and a second lens barrel arranged in sequence from the first lens to the image side along the X-ray axis, wherein the second lens, the third lens and the fourth lens are assembled in the first lens barrel, and the fifth lens, the sixth lens and the seventh lens are assembled in the second lens barrel.

[0005] In one embodiment, the effective focal length f2 of the second lens, the inner diameter d2s of the object-side surface of the second spacing element, and the inner diameter d2m of the image-side surface of the second spacing element may satisfy: 2.0<|f2 / d2s|+|f2 / d2m|<6.5.

[0006] In one embodiment, the effective focal length f1 of the first lens, the refractive index N1 of the first lens, and the inner diameter d10s of the object-side end surface of the first lens barrel may satisfy: -151.0<f1×N1 / d10s<-28.0.

[0007] In one embodiment, the distance EP102 from the object side end face of the first lens barrel to the object side face of the second spacer element on the X-ray axis, the maximum thickness CP2 of the second spacer element along the X-ray axis, and the center thickness CT2 of the second lens on the X-ray axis may satisfy: 0.8<(EP102+CP2) / CT2<2.5.

[0008] In one embodiment, the curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, the outer diameter D2s of the object side surface of the second spacer element, and the outer diameter D2m of the image side surface of the second spacer element may satisfy: -9.0<(R3×R4) / (D2s×D2m)<-1.0.

[0009] In one embodiment, the air gap T23 between the second lens and the third lens on the X-ray axis, the center thickness CT3 of the third lens on the X-ray axis, the maximum thickness CP3 of the third spacing element along the X-ray axis, and the distance EP23 from the image side surface of the second spacing element to the object side surface of the third spacing element on the X-ray axis may satisfy: 0.4<(T23+CT3+CP3) / EP23<1.5.

[0010] In one embodiment, the effective focal length f3 of the third lens, the outer diameter D3m of the image side surface of the third spacer element, and the inner diameter d3m of the image side surface of the third spacer element may satisfy: -8.2<f3 / (D3m-d3m)<-3.0.

[0011] In one embodiment, the plurality of spacer elements may further include a third auxiliary spacer element located between the third lens and the fourth lens and in direct contact with the image side surface of the third spacer element. The maximum thickness CP3 of the third spacer element along the X-ray axis, the maximum thickness CP3b of the third auxiliary spacer element along the X-ray axis, the refractive index N4 of the fourth lens and the effective focal length f4 of the fourth lens may satisfy: 0.0<(CP3+CP3b)×N4 / f4<0.5.

[0012] In one embodiment, the center thickness CT4 of the fourth lens on the X-axis, the air gap T34 between the third lens and the fourth lens on the X-axis, and the maximum thickness CP3 of the third spacing element along the X-axis direction may satisfy: 17.0<(CT4-T34) / CP3<71.0.

[0013] In one embodiment, the combined focal length f34 of the third lens and the fourth lens and the maximum height L10 of the first lens barrel along the X-axis direction may satisfy: 1.5<f34 / L10<4.0.

[0014] In one embodiment, the plurality of spacer elements may further include a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side surface of the fifth lens. The effective focal length f5 of the fifth lens, the radius of curvature R9 of the object side surface of the fifth lens, the outer diameter D5s of the object side surface of the fifth spacer element, and the inner diameter d5s of the object side surface of the fifth spacer element may satisfy: -2.4<(f5 / R9) / (D5s / d5s)<-1.2.

[0015] In one embodiment, the plurality of spacer elements may further include a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side surface of the fifth lens. The effective focal length f5 of the fifth lens, the refractive index N5 of the fifth lens, the outer diameter D5s of the object side surface of the fifth spacer element, and the outer diameter D5m of the image side surface of the fifth spacer element may satisfy: 3.1<f5×N5 / (D5s+D5m)<8.2.

[0016] In one embodiment, the combined focal length f56 of the fifth lens and the sixth lens, the combined focal length f67 of the sixth lens and the seventh lens, and the maximum height L20 of the second lens barrel along the X-axis direction may satisfy: -10.5<(f56+f67) / L20<-4.0.

[0017] In one embodiment, the plurality of spacer elements may further include a sixth spacer element located between the sixth lens and the seventh lens and in direct contact with the image side surface of the sixth lens. The effective focal length f7 of the seventh lens, the outer diameter D6m of the image side surface of the sixth spacer element, and the inner diameter d6m of the image side surface of the sixth spacer element may satisfy: -35.0<f7 / (D6m-d6m)<-10.0.

[0018] In one embodiment, the plurality of spacer elements may further include a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side surface of the fifth lens, and a sixth spacer element located between the sixth lens and the seventh lens and in direct contact with the image side surface of the sixth lens. The distance EP56 from the image side surface of the fifth spacer element to the object side surface of the sixth spacer element on the X-ray axis, the air gap T67 between the sixth lens and the seventh lens on the X-ray axis, and the air gap T56 between the fifth lens and the sixth lens on the X-ray axis may satisfy: 0.5<EP56 / (T67-T56)<1.6.

[0019] In one embodiment, the first lens has negative optical power, its incident surface is convex, its reflection surface is flat, and its exit surface is concave; the second lens has positive optical power, its object side surface is convex, and its image side surface is convex; the third lens has negative optical power, its object side surface is convex, and its image side surface is concave; the fourth lens has positive optical power, its object side surface is convex, and its image side surface is convex; the fifth lens has positive optical power, its object side surface is concave, and its image side surface is convex; the sixth lens has negative optical power, its object side surface is convex, and its image side surface is concave; and the seventh lens has negative optical power, and its object side surface is concave.

[0020] According to an embodiment of the present application, the optical photography lens includes a first lens with a refracting function, which can make the light incident from the object side along the Y optical axis be emitted along the X optical axis perpendicular to the Y optical axis after reflection; it also includes second to seventh lenses arranged in sequence from the first lens to the image side along the X optical axis, and a second spacing element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacing element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens. By setting the optical photographic lens in this way, and controlling the maximum thickness CP2 of the second spacing element along the X-axis direction and the air spacing T23 between the second lens and the third lens on the X-axis to satisfy the conditional expression 2.9<CP2 / T23<6.0, the thickness of the spacing element of the mechanism part is reasonably designed according to the air spacing between the second and third lenses, so as to effectively reduce the deformation of the air spacing after actual assembly and ensure the optical performance of the optical photographic lens; at the same time, the curvature radius R5 of the object side surface of the third lens, the maximum thickness CP2 of the second spacing element along the X-axis direction, the curvature radius R6 of the image side surface of the third lens and the maximum thickness CP3 of the third spacing element along the X-axis direction are controlled to satisfy the conditional expression 65.0<(R5×CP2) / (R6×CP3)<142.0, the third lens is the middle optical lens of the first group (including the second lens, the third lens and the fourth lens), and the convergence and refraction angles of light in the first group can be reasonably adjusted by constraining the curvature radii on both sides of the third lens and the thickness ratio of the front and rear spacing elements, thereby improving the stability of the actual assembly of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, purposes and advantages of the present application will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0022] Figure 1 A schematic structural diagram of an optical photographic lens according to an exemplary embodiment of the present application is shown;

[0023] Figure 2A schematic diagram showing structures and related parameters of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to an exemplary embodiment of the present application is shown;

[0024] Figure 3 A schematic structural diagram of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to Embodiment 1 of the present application is shown;

[0025] Figure 4 A schematic structural diagram of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to Embodiment 2 of the present application is shown;

[0026] Figure 5 , Figure 6 , Figure 7 and Figure 8 The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical photographic lens according to Example 1 and Example 2 of the present application are respectively shown;

[0027] Fig. 9 A schematic structural diagram of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to Embodiment 3 of the present application is shown;

[0028] Fig.10 A schematic structural diagram of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to Embodiment 4 of the present application is shown;

[0029] Fig.11 , Fig.12 , Fig.13 and Fig.14 The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical photographic lens according to Example 3 and Example 4 of the present application are respectively shown;

[0030] Fig.15 A schematic structural diagram of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to Embodiment 5 of the present application is shown;

[0031] Fig.16 A schematic structural diagram of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to Embodiment 6 of the present application is shown;

[0032] Fig.17 , Fig.18 , Fig.19 and Fig. 20 The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical photographic lens according to Example 5 and Example 6 of the present application are respectively shown;

[0033] Fig.21A schematic structural diagram of a first component, a second component, and a plurality of spacer elements of an optical photographic lens according to Embodiment 7 of the present application is shown;

[0034] Fig. 22 A schematic structural diagram showing a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Embodiment 8 of the present application; and

[0035] Fig.23 , Fig.24 , Fig.25 and Fig.26 The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical photographic lenses according to Example 7 and Example 8 of the present application are respectively shown. DETAILED DESCRIPTION

[0036] 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.

[0037] 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.

[0038] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of explanation. Specifically, the shapes of the spherical or aspherical surfaces shown in the 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 drawings. The drawings are only examples and are not drawn strictly to scale.

[0039] 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 judgment of the surface type in the paraxial area can be judged according to the general method in this field, for example, the positive and negative R value (R refers to the radius of curvature of the paraxial area) is used to judge the concave and convex. In this article, the surface of each lens closest to the subject along the optical path direction is called the object side of the lens, and the surface of each lens closest to the imaging surface along the optical path direction is called the image side of the lens. For the object side, when the R value is positive, it is judged as a convex surface, and when the R value is negative, it is judged as a concave surface; for the image side, when the R value is positive, it is judged as a concave surface, and when the R value is negative, it is judged as a convex surface.

[0040] 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.

[0041] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as 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.

[0042] 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 thereof 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, several variations and improvements can also be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0043] The features, principles and other aspects of the present application are described in detail below.

[0044] According to an exemplary embodiment of the present application, an optical photography lens may include a first lens with a refracting function, which can be used to change the direction of the light path. For example, the first lens can be configured so that light incident on the first lens from the object side along the Y optical axis is reflected and then emitted from the first lens along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0045] In an exemplary embodiment, the first lens having a folding and reflecting function may be, for example, a prism. Figure 1 , the first lens E1 has an incident surface S1, a reflecting surface S3 and an emitting surface S2. Light from the object side can enter the first lens E1 from the incident surface S1 along the Y optical axis direction, and after being reflected at the reflecting surface S3, can exit the first lens E1 from the emitting surface S2 along the X optical axis direction, and can further enter the second lens E2.

[0046] By using a first lens with a folding and reflecting function, the incident light from the object side can be folded 90°, so that the incident light from the object side is roughly perpendicular to the arrangement direction of the multiple lenses behind the lens. Therefore, the length space of electronic devices such as mobile phones can be used as a space to accommodate the length direction dimension of the optical photographic lens and as a space for zooming the optical photographic lens, avoiding the limitation of the thickness of the body on the design size and design parameters of the optical photographic lens, which is beneficial to the design of the optical photographic lens.

[0047] In an exemplary embodiment, the optical photographic lens further includes a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens arranged in order from the first lens to the image side along the X-ray axis.

[0048] In an exemplary embodiment, the first lens may have negative optical power. The second lens may have positive optical power. The third lens may have negative optical power. The fourth lens may have positive optical power. The fifth lens may have positive optical power. The sixth lens may have negative optical power. The seventh lens may have negative optical power.

[0049] In an exemplary embodiment, the optical photography lens may further include a first lens barrel and a second lens barrel arranged in sequence from the first lens to the image side along the X-ray axis. The second lens, the third lens, and the fourth lens may be assembled in the first lens barrel; the fifth lens, the sixth lens, and the seventh lens may be assembled in the second lens barrel. The first assembly may include a first lens barrel and the second lens, the third lens, and the fourth lens assembled therein; the second assembly may include a second lens barrel and the fifth lens, the sixth lens, and the seventh lens assembled therein; the first assembly and the second assembly are arranged along the X-ray axis, and the second assembly is located on the image side of the first assembly.

[0050] In an exemplary embodiment, an air space may be provided between the first lens and the second lens and between each two adjacent lenses. The number of lenses having optical power in the optical photographic lens is seven.

[0051] In an exemplary embodiment, the optical photographic lens further includes a plurality of spacer elements, the plurality of spacer elements including at least: a second spacer element located between the second lens and the third lens and in direct contact with the image side surface of the second lens; and a third spacer element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens.

[0052] In an exemplary embodiment, the optical photography lens of the present application may satisfy the condition 2.9<CP2 / T23<6.0, wherein CP2 is the maximum thickness of the second spacing element along the X-axis direction, and T23 is the air spacing between the second lens and the third lens on the X-axis.

[0053] In an exemplary embodiment, the optical photography lens of the present application may satisfy the condition 65.0<(R5×CP2) / (R6×CP3)<142.0, wherein R5 is the radius of curvature of the object side surface of the third lens; R6 is the radius of curvature of the image side surface of the third lens; CP2 is the maximum thickness of the second spacing element along the X-axis direction, and CP3 is the maximum thickness of the third spacing element along the X-axis direction.

[0054] According to an embodiment of the present application, the optical photography lens includes a first lens with a refracting function, which can make the light incident from the object side along the Y optical axis be emitted along the X optical axis perpendicular to the Y optical axis after reflection; it also includes second to seventh lenses arranged in sequence from the first lens to the image side along the X optical axis, and a second spacing element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacing element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens. By such setting of the optical photographic lens, and controlling the maximum thickness CP2 of the second spacing element along the X-axis direction and the air spacing T23 between the second lens and the third lens on the X-axis to satisfy the conditional expression 2.9<CP2 / T23<6.0, the thickness of the spacing element of the mechanism part is reasonably designed according to the air spacing between the second and third lenses, so that the deformation of the air spacing after actual assembly can be effectively reduced, and the optical performance of the optical photographic lens can be guaranteed; at the same time, the curvature radius R5 of the object side surface of the third lens, the maximum thickness CP2 of the second spacing element along the X-axis direction, the curvature radius R6 of the image side surface of the third lens and the maximum thickness CP3 of the third spacing element along the X-axis direction are controlled to satisfy the conditional expression 65.0<(R5×CP2) / (R6×CP3)<142.0, the third lens is the intermediate optical lens of the first group (the second, third and fourth lenses included in the first component), and the convergence and refraction angles of light in the first group can be reasonably adjusted by constraining the curvature radii on both sides of the third lens and the thickness ratio of the front and rear spacing elements, thereby improving the stability of the actual assembly of the lens.

[0055] See Table 1, which shows three exemplary embodiments of Example 1, Example 2, and Example 3. The optical photographic lens according to Example 1 satisfies the conditional formulas CP2 / T23=2.1 and (R5×CP2) / (R6×CP3)=53.6; the optical photographic lens according to Example 2 satisfies the conditional formulas CP2 / T23=6.9 and (R5×CP2) / (R6×CP3)=151.4; the optical photographic lens according to Example 3 satisfies the conditional formulas CP2 / T23=3.53 and (R5×CP2) / (R6×CP3)=72.8. From the analysis of Table 1, it can be seen that when the value of the conditional formula CP2 / T23 is within the range of less than or equal to 2.9 or greater than or equal to 6.0, and the value of the conditional formula (R5×CP2) / (R6×CP3) is within the range of less than or equal to 65.0 or greater than or equal to 142.0, the performance of the optical photographic lens is relatively poor and cannot meet certain requirements; when the value of the conditional formula CP2 / T23 is within the range of greater than 2.9 and less than 6.0, and the value of the conditional formula (R5×CP2) / (R6×CP3) is within the range of greater than 65.0 and less than 142.0, the performance of the optical photographic lens is relatively good and can meet the required requirements. Therefore, the optical photographic lens according to the embodiment of the present application can ensure the optical performance of the optical photographic lens and improve the stability of the actual assembly of the lens by controlling CP2, T23, R5, R6 and CP3 to meet the conditional formulas 2.9<CP2 / T23<6.0 and 65.0<(R5×CP2) / (R6×CP3)<142.0.

[0056]

[0057] Table 1

[0058] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 2.0<|f2 / d2s|+|f2 / d2m|<6.5, wherein f2 is the effective focal length of the second lens, d2s is the inner diameter of the object side surface of the second spacing element, and d2m is the inner diameter of the image side surface of the second spacing element. By controlling the effective focal length of the second lens, the inner diameter of the object side surface of the second spacing element, and the inner diameter of the image side surface of the second spacing element to satisfy the conditional formula 2.0<|f2 / d2s|+|f2 / d2m|<6.5, and rationally designing the inner diameters of the object side and image side of the second spacing element according to the focal length of the second lens, it is possible to effectively block excess stray light, improve imaging quality, and reduce trial improvement pressure while ensuring that the light of the optical system is not affected.

[0059] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula -151.0<f1×N1 / d10s<-28.0, wherein f1 is the effective focal length of the first lens, N1 is the refractive index of the first lens, d10s is the inner diameter of the object side end face of the first lens barrel, the object side end face of the first lens barrel is the end face or surface of the first lens barrel closest to the object side along the X-ray axis direction, and more specifically, d10s is the inner diameter of the object side end face of the first lens barrel closest to the object side. The refractive index and effective focal length of the first lens will affect the aperture size after the light is folded back. By controlling the effective focal length of the first lens, the refractive index of the first lens, and the inner diameter of the object side end face of the first lens barrel closest to the object side to satisfy the conditional formula -151.0<f1×N1 / d10s<-28.0, it is possible to avoid unnecessary stray light brought by the mechanism and improve the imaging quality without affecting the optical system.

[0060] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 0.8<(EP102+CP2) / CT2<2.5, wherein EP102 is the distance from the object side end face of the first lens barrel to the object side face of the second spacing element on the X-ray axis, CP2 is the maximum thickness of the second spacing element along the X-ray axis, and CT2 is the center thickness of the second lens on the X-ray axis. By controlling the distance from the object side end face of the first lens barrel to the object side face of the second spacing element on the X-ray axis, the maximum thickness of the second spacing element along the X-ray axis, and the center thickness of the second lens on the X-ray axis to satisfy the conditional formula 0.8<(EP102+CP2) / CT2<2.5, the thickness of the supporting mechanism and the thickness of the spacing element are reasonably designed according to the middle thickness of the second lens, the assembly strength of the actual optical lens is ensured, the lens bulge is simultaneously avoided, and the stability of the lens is improved.

[0061] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula -9.0<(R3×R4) / (D2s×D2m)<-1.0, wherein R3 is the radius of curvature of the object side surface of the second lens, R4 is the radius of curvature of the image side surface of the second lens, D2s is the outer diameter of the object side surface of the second spacer element, and D2m is the outer diameter of the image side surface of the second spacer element. By controlling the radius of curvature of the object side surface of the second lens, the radius of curvature of the image side surface of the second lens, the outer diameter of the object side surface of the second spacer element, and the outer diameter of the image side surface of the second spacer element to satisfy the conditional formula -9.0<(R3×R4) / (D2s×D2m)<-1.0, the light entering the first group aperture can be controlled, and while meeting the optical performance specifications, the outer diameter of the components can be reduced, making the overall structure more compact, while improving the strength and saving costs.

[0062] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 0.4<(T23+CT3+CP3) / EP23<1.5, wherein T23 is the air interval between the second lens and the third lens on the X-axis, CT3 is the center thickness of the third lens on the X-axis, CP3 is the maximum thickness of the third spacing element along the X-axis direction, and EP23 is the distance from the image side surface of the second spacing element to the object side surface of the third spacing element on the X-axis. By controlling the air interval between the second lens and the third lens on the X-axis, the center thickness of the third lens on the X-axis, the maximum thickness of the third spacing element along the X-axis direction, and the distance from the image side surface of the second spacing element to the object side surface of the third spacing element on the X-axis to satisfy the conditional formula 0.4<(T23+CT3+CP3) / EP23<1.5, the center thickness of the third lens is reasonably designed and constrained to the thickness ratio with the mechanism thickness and the thickness of the adjacent spacing elements, the strength of the actual assembly of the lens can be improved, the influence of assembly deformation on lens displacement and space gap can be reduced, and the optical performance can be guaranteed.

[0063] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula -8.2<f3 / (D3m-d3m)<-3.0, wherein f3 is the effective focal length of the third lens, D3m is the outer diameter of the image side surface of the third spacer element, and d3m is the inner diameter of the image side surface of the third spacer element. By controlling the effective focal length of the third lens, the outer diameter of the image side surface of the third spacer element, and the inner diameter of the image side surface of the third spacer element to satisfy the conditional formula -8.2<f3 / (D3m-d3m)<-3.0, the inner and outer diameters of adjacent spacer elements are reasonably adjusted according to the focal length of the third lens, and the outer diameter of the spacer element is minimized as much as possible while ensuring that the main light is not blocked and the processability is ensured, thereby reducing the structural space and saving costs, which is conducive to improving market competitiveness.

[0064] In an exemplary embodiment, the plurality of spacer elements of the optical photographic lens may further include a third auxiliary spacer element located between the third lens and the fourth lens and in direct contact with the image-side surface of the third spacer element.

[0065] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 0.0<(CP3+CP3b)×N4 / f4<0.5, wherein CP3 is the maximum thickness of the third spacing element along the X-axis direction, CP3b is the maximum thickness of the third auxiliary spacing element along the X-axis direction, N4 is the refractive index of the fourth lens, and f4 is the effective focal length of the fourth lens. The distance between the third lens and the fourth lens is relatively large, and the auxiliary spacing element can be provided to connect and support, and the maximum thickness of the third spacing element along the X-axis direction, the maximum thickness of the third auxiliary spacing element along the X-axis direction, the refractive index of the fourth lens, and the effective focal length of the fourth lens are controlled to meet the conditional formula 0.0<(CP3+CP3b)×N4 / f4<0.5, so that the assembly strength can be guaranteed and the stability can be improved.

[0066] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 17.0<(CT4-T34) / CP3<71.0, wherein CT4 is the center thickness of the fourth lens on the X-axis, T34 is the air gap between the third lens and the fourth lens on the X-axis, and CP3 is the maximum thickness of the third spacing element along the X-axis. By controlling the center thickness of the fourth lens on the X-axis, the air gap between the third lens and the fourth lens on the X-axis, and the maximum thickness of the third spacing element along the X-axis to satisfy the conditional formula 17.0<(CT4-T34) / CP3<71.0, the center thickness of the fourth lens and the air gap between the third and fourth lenses are reasonably set when designing the optical system of the lens group, so as to avoid excessive sensitivity of a certain gap and improve processing performance. By simultaneously considering that the thickness of the lens connecting element (spacer element) satisfies the above conditional formula, the lens assembly strength can be improved and assembly deformation can be reduced.

[0067] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 1.5<f34 / L10<4.0, wherein f34 is the combined focal length of the third lens and the fourth lens, and L10 is the maximum height of the first lens barrel along the X-axis direction. By controlling the ratio of the combined focal length of the third lens and the fourth lens to the maximum height of the first lens barrel along the X-axis direction within this range, the optical power of the optical system in the first group is reasonably allocated according to the lens barrel height specification, so that the system can have good imaging quality while effectively reducing the sensitivity of the system, thereby improving the optical performance and assembly yield.

[0068] In an exemplary embodiment, the plurality of spacer elements of the optical photographic lens may further include a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image-side surface of the fifth lens.

[0069] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula -2.4<(f5 / R9) / (D5s / d5s)<-1.2, wherein f5 is the effective focal length of the fifth lens, R9 is the radius of curvature of the object side surface of the fifth lens, D5s is the outer diameter of the object side surface of the fifth spacer element, and d5s is the inner diameter of the object side surface of the fifth spacer element. By controlling the effective focal length of the fifth lens, the radius of curvature of the object side surface of the fifth lens, the outer diameter of the object side surface of the fifth spacer element, and the inner diameter of the object side surface of the fifth spacer element to satisfy the conditional formula -2.4<(f5 / R9) / (D5s / d5s)<-1.2, the aperture of the light entering the second fixed group (the lenses included in the second component) can be reasonably constrained, and the excess stray light can be blocked without affecting the main light. At the same time, on the basis of minimizing the outer diameter, a certain ring bandwidth of the spacer element is maintained to ensure its machinability.

[0070] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 3.1<f5×N5 / (D5s+D5m)<8.2, wherein f5 is the effective focal length of the fifth lens, N5 is the refractive index of the fifth lens, D5s is the outer diameter of the object side surface of the fifth spacer element, and D5m is the outer diameter of the image side surface of the fifth spacer element. By controlling the effective focal length of the fifth lens, the refractive index of the fifth lens, the outer diameter of the object side surface of the fifth spacer element, and the outer diameter of the image side surface of the fifth spacer element to satisfy the conditional formula 3.1<f5×N5 / (D5s+D5m)<8.2, the refraction angle of the light after entering the second fixed group (the lenses included in the second component) can be reasonably controlled, the lens bearing strength can be ensured to be appropriate, and the structure can be made compact.

[0071] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula -10.5<(f56+f67) / L20<-4.0, wherein f56 is the combined focal length of the fifth lens and the sixth lens, f67 is the combined focal length of the sixth lens and the seventh lens, and L20 is the maximum height of the second lens barrel along the X-axis direction. By controlling the combined focal length of the fifth lens and the sixth lens, the combined focal length of the sixth lens and the seventh lens, and the maximum height of the second lens barrel along the X-axis direction to satisfy the conditional formula -10.5<(f56+f67) / L20<-4.0, the optical power of the optical system in the second group is reasonably allocated according to the lens barrel height specification, so that the system can have good imaging quality while effectively reducing the sensitivity of the system, thereby improving the optical performance and assembly yield.

[0072] In an exemplary embodiment, the plurality of spacer elements of the optical photographic lens may further include a sixth spacer element located between the sixth lens and the seventh lens and in direct contact with the image-side surface of the sixth lens.

[0073] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula -35.0<f7 / (D6m-d6m)<-10.0, wherein f7 is the effective focal length of the seventh lens, D6m is the outer diameter of the image side surface of the sixth spacer element, and d6m is the inner diameter of the image side surface of the sixth spacer element. The seventh lens is the last lens in the lens group. The inner and outer diameters of the adjacent sixth spacer element are reasonably adjusted according to its focal length, and the effective focal length of the seventh lens, the outer diameter of the image side surface of the sixth spacer element, and the inner diameter of the image side surface of the sixth spacer element are controlled to satisfy the conditional formula -35.0<f7 / (D6m-d6m)<-10.0. While maintaining the specification parameters of the main light, it can block and absorb the excess stray light reflected by the rear end color filter / filter, thereby improving the imaging quality.

[0074] In an exemplary embodiment, the plurality of spacer elements of the optical photographic lens may further include a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side surface of the fifth lens, and a sixth spacer element located between the sixth lens and the seventh lens and in direct contact with the image side surface of the sixth lens.

[0075] In an exemplary embodiment, the optical photography lens of the present application satisfies the conditional formula 0.5<EP56 / (T67-T56)<1.6, wherein EP56 is the distance from the image side surface of the fifth spacing element to the object side surface of the sixth spacing element on the X-ray axis, T67 is the air interval between the sixth lens and the seventh lens on the X-ray axis, and T56 is the air interval between the fifth lens and the sixth lens on the X-ray axis. By controlling the distance from the image side surface of the fifth spacing element to the object side surface of the sixth spacing element on the X-ray axis, the air interval between the sixth lens and the seventh lens on the X-ray axis, and the air interval between the fifth lens and the sixth lens on the X-ray axis to satisfy the conditional formula 0.5<EP56 / (T67-T56)<1.6, according to the size of the front and rear air intervals of the sixth lens, the structural support thickness (i.e., EP56) and the allocated space of the sixth lens are reasonably designed and calculated, and the structure can be reasonably arranged to ensure the assembly strength of the sixth lens while reducing the difference in the front and rear deformation, and avoid excessive fluctuations in the air interval, which affects the lens performance.

[0076] In an exemplary embodiment, the incident surface of the first lens may be a convex surface, the reflection surface may be a plane, and the exit surface may be a concave surface. The object side surface of the second lens may be a convex surface, and the image side surface may be a convex surface. The object side surface of the third lens may be a convex surface, and the image side surface may be a concave surface. The object side surface of the fourth lens may be a convex surface, and the image side surface may be a convex surface. The object side surface of the fifth lens may be a concave surface, and the image side surface may be a convex surface. The object side surface of the sixth lens may be a convex surface, and the image side surface may be a concave surface. The object side surface of the seventh lens may be a concave surface.

[0077] In an exemplary embodiment, the optical photography lens of the present application may include a trimmed lens. The peripheral surface of the trimmed lens may have a trimmed portion and a non-trimmed portion, and the outer diameter of the trimmed portion of the lens is smaller than the outer diameter of the non-trimmed portion of the lens. When the peripheral surface of the lens has a trimmed portion, the outer diameter / maximum outer diameter of the lens generally refers to the outer diameter / maximum outer diameter of the non-trimmed portion of the lens.

[0078] In an exemplary embodiment, the optical photography lens of the present application may include at least one aperture. The aperture may constrain the light path and control the light intensity. The aperture may be set at an appropriate position of the optical photography lens, for example, the aperture may be set between the first lens and the first component.

[0079] In an exemplary embodiment, optionally, the optical photography 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.

[0080] In an exemplary embodiment, each surface of the first lens to the seventh lens may include an aspherical mirror surface, which has a better curvature radius characteristic and has the advantages of improving distortion aberration and improving astigmatism aberration. The use of an aspherical mirror surface can eliminate the aberration occurring during imaging as much as possible, thereby improving the imaging quality.

[0081] According to the optical photographic lens of the implementation mode of the present application, a seven-lens two-group internal focus optical imaging lens camera group is proposed. The seven lenses are distributed in the form of 1+3+3. Under the condition of less design freedom, the stability and processability of the overall structure of the lens group can be guaranteed. At the same time, the system can achieve intra-system zoom and has the characteristics of high resolution, which can better meet the needs of market development.

[0082] On the one hand, the optical photographic lens according to the embodiment of the present application includes a first lens with a refracting function, which can make the light incident from the object side along the Y optical axis be emitted along the X optical axis direction perpendicular to the Y optical axis after reflection; it also includes a first component and a second component arranged in sequence from the first lens to the image side along the X optical axis, wherein the first component includes a second lens, a third lens and a fourth lens assembled in a first lens barrel and arranged in sequence from the first lens to the image side along the X optical axis, and the second component includes a fifth lens, a sixth lens and a seventh lens assembled in a second lens barrel and arranged in sequence from the first lens to the image side along the X optical axis; in addition, the optical photographic lens also includes a second spacing element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacing element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens. By such setting of the optical photographic lens, and controlling the maximum thickness CP2 of the second spacing element along the X-axis direction and the air spacing T23 between the second lens and the third lens on the X-axis to satisfy the conditional expression 2.9<CP2 / T23<6.0, the thickness of the spacing element of the mechanism part is reasonably designed according to the air spacing between the second and third lenses, so that the deformation of the air spacing after actual assembly can be effectively reduced, and the optical performance of the optical photographic lens can be guaranteed; at the same time, the curvature radius R5 of the object side surface of the third lens, the maximum thickness CP2 of the second spacing element along the X-axis direction, the curvature radius R6 of the image side surface of the third lens and the maximum thickness CP3 of the third spacing element along the X-axis direction are controlled to satisfy the conditional expression 65.0<(R5×CP2) / (R6×CP3)<142.0, the third lens is the middle optical lens of the first group, and the convergence and refraction angles of light in the first group can be reasonably adjusted by constraining the curvature radii on both sides of the third lens and the thickness ratio of the front and rear spacing elements, thereby improving the stability of the actual assembly of the lens.

[0083] On the other hand, the optical photographic lens according to the embodiment of the present application includes a first lens with a refracting function, which can make the light incident from the object side along the Y optical axis be emitted along the X optical axis direction perpendicular to the Y optical axis after reflection; it also includes a first component and a second component arranged in sequence from the first lens to the image side along the X optical axis, wherein the first component includes a second lens, a third lens and a fourth lens assembled in a first lens barrel and arranged in sequence from the first lens to the image side along the X optical axis, and the second component includes a fifth lens, a sixth lens and a seventh lens assembled in a second lens barrel and arranged in sequence from the first lens to the image side along the X optical axis; in addition, the optical photographic lens also includes a second spacing element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacing element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens. By making such an arrangement of the optical photographic lens, and controlling the curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, the outer diameter D2s of the object side surface of the second spacing element, and the outer diameter D2m of the image side surface of the second spacing element to satisfy the condition -9.0<(R3×R4) / (D2s×D2m)<-1.0, it is possible to control the light entering the first group aperture, reduce the outer diameter of the component while meeting the optical performance specifications, make the overall structure more compact, and at the same time improve the strength and save costs.

[0084] On the other hand, according to an embodiment of the present application, the optical photographic lens includes a first lens with a refracting function, which can make the light incident from the object side along the Y optical axis be emitted along the X optical axis direction perpendicular to the Y optical axis after reflection; it also includes a first component and a second component arranged in sequence from the first lens to the image side along the X optical axis, wherein the first component includes a second lens, a third lens and a fourth lens assembled in a first lens barrel and arranged in sequence from the first lens to the image side along the X optical axis, and the second component includes a fifth lens, a sixth lens and a seventh lens assembled in a second lens barrel and arranged in sequence from the first lens to the image side along the X optical axis; in addition, the optical photographic lens also includes a second spacing element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacing element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens. By setting the optical photographic lens in this way, and controlling the combined focal length f34 of the third lens and the fourth lens and the maximum height L10 of the first lens barrel along the X-axis direction to satisfy the conditional expression 1.5<f34 / L10<4.0, the optical power of the optical system in the first group is reasonably allocated according to the lens barrel height specification, so that the system can have good imaging quality while effectively reducing the sensitivity of the system, thereby improving the optical performance and assembly yield.

[0085] On the other hand, according to an embodiment of the present application, the optical photographic lens includes a first lens with a refracting function, which can make the light incident from the object side along the Y optical axis be emitted along the X optical axis direction perpendicular to the Y optical axis after reflection; it also includes a first component and a second component arranged in sequence from the first lens to the image side along the X optical axis, wherein the first component includes a second lens, a third lens and a fourth lens assembled in a first lens barrel and arranged in sequence from the first lens to the image side along the X optical axis, and the second component includes a fifth lens, a sixth lens and a seventh lens assembled in a second lens barrel and arranged in sequence from the first lens to the image side along the X optical axis; in addition, the optical photographic lens also includes a second spacing element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacing element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens. By setting the optical photographic lens in this way, and controlling the combined focal length f56 of the fifth lens and the sixth lens, the combined focal length f67 of the sixth lens and the seventh lens, and the maximum height L20 of the second lens barrel along the X-axis direction to satisfy the conditional formula -10.5<(f56+f67) / L20<-4.0, the optical power of the optical system in the second group is reasonably allocated according to the lens barrel height specification, so that the system can have good imaging quality while effectively reducing the sensitivity of the system, thereby improving the optical performance and assembly yield.

[0086] 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 photographic lens and the division method of the components or lens groups may be changed, and the number of spacing elements may also be changed to obtain the various results and advantages described in this specification, and the present application does not specifically limit this. For example, although one lens and two components with a total of seven lenses are described as an example in the embodiment, the optical photographic lens is not limited to including two components and seven lenses. If necessary, the optical photographic lens may also include other numbers of lens groups and / or lenses. For another example, as needed, the optical photographic lens may also include other numbers of spacing elements different from those described in the above embodiment.

[0087] Specific embodiments of the optical photographic lens applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0088] Example 1

[0089] The following reference Figure 3 Describe the optical photography lens according to Embodiment 1 of the present application, Figure 3 A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Embodiment 1 of the present application is shown.

[0090] In this embodiment, the optical photographic lens comprises a first lens E1 ( Figure 3 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0091] In this embodiment, the optical photographic lens further includes a first component and a second component arranged in sequence from a first lens E1 (not shown) to the image side along the X-axis, such as Figure 3 As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0092] In this embodiment, the optical photography lens further includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0093] In this embodiment, the first lens E1 (not shown) has negative power, its incident surface S1 is convex, its exit surface S2 is concave, and its reflection surface S3 is a plane. The second lens E2 has positive power, its object side surface S4 is convex, and its image side surface S5 is convex. The third lens E3 has negative power, its object side surface S6 is convex, and its image side surface S7 is concave. The fourth lens E4 has positive power, its object side surface S8 is convex, and its image side surface S9 is convex. The fifth lens E5 has positive power, its object side surface S10 is concave, and its image side surface S11 is convex. The sixth lens E6 has negative power, its object side surface S12 is convex, and its image side surface S13 is concave. The seventh lens E7 has negative power, its object side surface S14 is concave, and its image side surface S15 is concave.

[0094] In this embodiment, the optical photography lens may further include, for example, a filter (not shown in the figure) located on the image side of the seventh lens E7, having an object-side surface S16 and an image-side surface S17, and an imaging surface S18 (not shown in the figure) located on the image side of the filter. Light from the object may, for example, sequentially pass through each surface S1 to S17 and finally be imaged on the imaging surface S18.

[0095] Table 2 shows basic parameters of the optical photography lens of Example 1, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0096]

[0097]

[0098] Table 2

[0099] In Example 1, the incident surface S1 and the exit surface S2 of the first lens E1, and the object side surface and the image side surface of any lens among the second lens E2 to the seventh lens E7 are all aspherical surfaces, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0100]

[0101] 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 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0102] Face number A4 A6 A8 A10 A12 A14 A16 S1 3.64E-05 5.33E-04 2.48E-03 4.27E-03 -6.80E-03 -1.55E-02 -9.74E-04 S2 5.36E-06 -1.38E-04 -5.72E-04 -3.33E-04 3.21E-04 3.44E-03 -5.25E-04 S4 -2.33E-06 3.43E-05 1.15E-04 -3.17E-04 6.09E-05 -2.26E-03 7.34E-04 S5 7.11E-07 -8.02E-06 -1.78E-05 3.33E-04 -1.23E-05 1.78E-03 -5.57E-04 S6 -1.47E-07 2.38E-06 1.26E-06 -1.72E-04 1.79E-06 -1.02E-03 2.89E-04 S7 2.17E-08 -7.96E-07 6.59E-08 5.52E-05 -5.10E-06 4.10E-04 -1.07E-04 S8 -2.30E-09 2.15E-07 -2.14E-08 -1.21E-05 3.17E-06 -1.17E-04 2.91E-05 S9 1.77E-10 -4.15E-08 1.83E-09 1.85E-06 -9.74E-07 2.41E-05 -5.78E-06 S10 -9.85E-12 5.62E-09 -7.35E-11 -2.02E-07 1.82E-07 -3.60E-06 8.39E-07 S11 3.92E-13 -5.30E-10 1.18E-12 1.55E-08 -2.22E-08 3.86E-07 -8.77E-08 S12 -1.08E-14 3.41E-11 0.00E+00 -8.21E-10 1.78E-09 -2.90E-08 6.42E-09 S13 1.97E-16 -1.43E-12 0.00E+00 2.82E-11 -9.12E-11 1.45E-09 -3.12E-10 S14 -2.11E-18 3.54E-14 0.00E+00 -5.64E-13 2.70E-12 -4.31E-11 9.01E-12 S15 1.02E-20 -3.89E-16 0.00E+00 4.93E-15 -3.53E-14 5.80E-13 -1.17E-13

[0103] Table 3-1

[0104] Face number A18 A20 A22 A24 A26 A28 A30 S1 4.67E-04 9.59E-03 4.98E-04 -3.99E-02 -3.93E-02 -1.33E-02 -8.35E-03 S2 1.18E-04 -1.17E-03 6.91E-03 1.82E-02 1.18E-02 8.76E-04 5.11E-04 S4 -1.69E-04 2.71E-04 -4.49E-03 -8.84E-03 -4.19E-03 -5.61E-04 -2.04E-04 S5 1.78E-04 -1.14E-04 1.77E-03 3.95E-03 1.55E-03 3.09E-04 1.44E-04 S6 -1.21E-04 5.55E-05 -3.39E-04 -1.47E-03 -4.97E-04 -6.49E-05 -7.37E-05 S7 5.54E-05 -1.89E-05 -5.46E-05 4.47E-04 1.17E-04 -3.33E-05 2.67E-05 S8 -1.77E-05 4.14E-06 6.48E-05 -1.09E-04 -1.36E-05 3.31E-05 -6.98E-06 S9 4.00E-06 -5.79E-07 -2.46E-05 2.09E-05 -2.14E-06 -1.38E-05 1.33E-06 S10 -6.43E-07 5.01E-08 5.75E-06 -3.01E-06 1.39E-06 3.56E-06 -1.83E-07 S11 7.32E-08 -2.46E-09 -9.03E-07 3.12E-07 -3.23E-07 -6.09E-07 1.81E-08 S12 -5.75E-09 5.22E-11 9.56E-08 -2.21E-08 4.43E-08 6.96E-08 -1.24E-09 S13 2.97E-10 0.00E+00 -6.56E-09 9.89E-10 -3.73E-09 -5.13E-09 5.67E-11 S14 -9.07E-12 0.00E+00 2.63E-10 -2.42E-11 1.79E-10 2.20E-10 -1.53E-12 S15 1.24E-13 0.00E+00 -4.69E-12 2.24E-13 -3.76E-12 -4.19E-12 1.85E-14

[0105] Table 3-2

[0106] Referring to Table 10, the values ​​of multiple relevant parameters of the first lens barrel P10, the second lens barrel P20 and the multiple spacer elements P2, P3, P3b, P5, and P6 in this embodiment are respectively shown in the "Example 1" column of Table 10, and the specific descriptions of the multiple relevant parameters shown in Table 10 are respectively as follows: d2s is the inner diameter of the object side surface of the second spacer element P2, d2m is the inner diameter of the image side surface of the second spacer element P2, D2s is the outer diameter of the object side surface of the second spacer element P2, D2m is the outer diameter of the image side surface of the second spacer element P2, d3m is the inner diameter of the image side surface of the third spacer element P3, D3m is the outer diameter of the image side surface of the third spacer element P3, d5s is the inner diameter of the object side surface of the fifth spacer element P5, D5s is the outer diameter of the object side surface of the fifth spacer element P5, D5m is the outer diameter of the image side surface of the fifth spacer element P5, and d6m is the outer diameter of the sixth spacer element P6. : D6m is the inner diameter of the image side surface of the sixth spacing element P6, d10s is the inner diameter of the object side end surface of the first lens barrel P10, CP2 is the maximum thickness of the second spacing element P2 along the X-ray axis, CP3 is the maximum thickness of the third spacing element P3 along the X-ray axis, CP3b is the maximum thickness of the third auxiliary spacing element P3b along the X-ray axis, EP102 is the distance from the object side end surface of the first lens barrel P10 to the object side surface of the second spacing element P2 on the X-ray axis, EP23 is the distance from the image side surface of the second spacing element P2 to the object side surface of the third spacing element P3 on the X-ray axis, EP56 is the distance from the image side surface of the fifth spacing element P5 to the object side surface of the sixth spacing element P6 on the X-ray axis, L10 is the maximum height of the first lens barrel P10 along the X-ray axis, and L20 is the maximum height of the second lens barrel P20 along the X-ray axis. The units of the above parameters shown in Table 10 are all millimeters (mm). The above parameters are schematically shown in the structure diagram of the optical photography lens as follows: Figure 2 shown.

[0107] Example 2

[0108] The following reference Figure 4 Describe the optical photography lens according to Embodiment 2 of the present application, Figure 4 A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Embodiment 2 of the present application is shown.

[0109] In this embodiment, the optical photographic lens also includes a first lens E1 ( Figure 4 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0110] In this embodiment, similar to Embodiment 1, the optical photographic lens also includes a first component and a second component arranged in sequence from the first lens E1 (not shown) to the image side along the X-axis, such as Figure 4 As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0111] In this embodiment, similar to Embodiment 1, the optical photographic lens also includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0112] In addition, the basic parameter table of the optical photographic lens of this embodiment is the same as Table 2, and the high-order coefficient table of the aspherical mirror surface is the same as Table 3-1 and Table 3-2.

[0113] The difference between this embodiment and embodiment 1 is that the values ​​of the relevant parameters shown in Table 10 are different. The values ​​of the parameters in this embodiment are shown in the 'Example 2' column in Table 10. The specific description of the meaning represented by each parameter is the same as that in the above embodiment 1, and will not be repeated here.

[0114] Figure 5 The axial chromatic aberration curves of the optical photographic lenses of Example 1 and Example 2 are shown, which indicate the deviation of the convergent focus of light rays of different wavelengths passing through the back of the lens. Figure 6 Astigmatism curves of the optical photographic lenses of Examples 1 and 2 are shown, which represent meridional field curvature and sagittal field curvature. Figure 7 The distortion curves of the optical photographic lenses of Example 1 and Example 2 are shown, which represent the distortion magnitude values ​​corresponding to different image heights. Figure 8The magnification chromatic aberration curves of the optical photographic lenses of Example 1 and Example 2 are shown, which represent the deviations of different image heights on the imaging surface after the light passes through the lens. Figures 5 to 8 It can be seen that the optical photography lenses provided in Examples 1 and 2 can achieve good imaging quality.

[0115] Example 3

[0116] The following reference Fig. 9 Describe the optical photography lens according to Embodiment 3 of the present application, Fig. 9 A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Example 3 of the present application is shown.

[0117] In this embodiment, the optical photographic lens comprises a first lens E1 ( Fig. 9 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0118] In this embodiment, the optical photographic lens further includes a first component and a second component arranged in sequence from a first lens E1 (not shown) to the image side along the X-axis, such as Fig. 9 As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0119] In this embodiment, the optical photography lens further includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0120] In this embodiment, the first lens E1 (not shown) has negative power, its incident surface S1 is convex, its exit surface S2 is concave, and its reflection surface S3 is a plane. The second lens E2 has positive power, its object side surface S4 is convex, and its image side surface S5 is convex. The third lens E3 has negative power, its object side surface S6 is convex, and its image side surface S7 is concave. The fourth lens E4 has positive power, its object side surface S8 is convex, and its image side surface S9 is convex. The fifth lens E5 has positive power, its object side surface S10 is concave, and its image side surface S11 is convex. The sixth lens E6 has negative power, its object side surface S12 is convex, and its image side surface S13 is concave. The seventh lens E7 has negative power, its object side surface S14 is concave, and its image side surface S15 is concave.

[0121] In this embodiment, the optical photography lens may further include, for example, a filter (not shown in the figure) located on the image side of the seventh lens E7, having an object-side surface S16 and an image-side surface S17, and an imaging surface S18 (not shown in the figure) located on the image side of the filter. Light from the object may, for example, sequentially pass through each surface S1 to S17 and finally be imaged on the imaging surface S18.

[0122] Table 4 shows basic parameters of the optical photography lens of Example 3, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0123]

[0124]

[0125] Table 4

[0126] In this embodiment, the incident surface S1 and the exit surface S2 of the first lens E1, and the object side surface and the image side surface of any lens from the second lens E2 to the seventh lens E7 are all aspherical surfaces. The surface shape of each aspherical surface can be defined by the formula (1) given in the above embodiment 1. Tables 5-1 and 5-2 show 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, A 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0127] Face number A4 A6 A8 A10 A12 A14 A16 S1 6.61E-05 1.02E-03 5.21E-03 9.24E-03 -1.51E-02 -3.34E-02 -2.35E-03 S2 3.03E-05 -3.63E-04 -1.63E-03 -1.34E-03 1.31E-03 1.08E-02 -1.27E-03 S4 -2.36E-05 1.53E-04 2.64E-04 -2.21E-04 2.06E-03 -7.32E-03 3.34E-03 S5 1.18E-05 -6.36E-05 3.44E-05 2.99E-05 -3.73E-03 6.56E-03 -4.22E-03 S6 -3.88E-06 2.05E-05 -4.05E-05 3.30E-04 3.67E-03 -4.74E-03 3.57E-03 S7 8.87E-07 -2.13E-06 1.27E-05 -3.56E-04 -2.39E-03 2.40E-03 -2.14E-03 S8 -1.44E-07 -1.59E-06 -2.17E-06 1.93E-04 1.07E-03 -8.34E-04 9.33E-04 S9 1.68E-08 9.05E-07 2.13E-07 -6.54E-05 -3.38E-04 1.97E-04 -2.97E-04 S10 -1.41E-09 -2.41E-07 -1.15E-08 1.49E-05 7.59E-05 -3.01E-05 6.91E-05 S11 8.41E-11 3.93E-08 2.65E-10 -2.33E-06 -1.20E-05 2.53E-06 -1.16E-05 S12 -3.49E-12 -4.10E-09 0.00E+00 2.48E-07 1.32E-06 -1.90E-08 1.35E-06 S13 9.57E-14 2.69E-10 0.00E+00 -1.71E-08 -9.51E-08 -1.88E-08 -1.05E-07 S14 -1.55E-15 -1.01E-11 0.00E+00 6.92E-10 4.06E-09 1.75E-09 4.86E-09 S15 1.13E-17 1.66E-13 0.00E+00 -1.25E-11 -7.77E-11 -5.38E-11 -1.01E-10

[0128] Table 5-1

[0129]

[0130]

[0131] Table 5-2

[0132] Referring to Table 10, the values ​​of the relevant parameters in this embodiment are shown in the 'Example 3' column in Table 10, wherein the specific description of the meaning represented by each parameter is the same as that in the above Example 1, and will not be repeated here.

[0133] Example 4

[0134] The following reference Fig.10 Describe the optical photography lens according to Embodiment 4 of the present application, Fig.10 A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Embodiment 4 of the present application is shown.

[0135] In this embodiment, the optical photographic lens also includes a first lens E1 ( Fig.10 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0136] In this embodiment, similar to Embodiment 3, the optical photographic lens also includes a first component and a second component arranged in sequence from the first lens E1 (not shown) to the image side along the X-axis, such as Fig.10 As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0137] In this embodiment, similar to Embodiment 3, the optical photographic lens also includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0138] In addition, the basic parameter table of the optical photographic lens of this embodiment is the same as Table 4, and the high-order coefficient table of the aspherical mirror surface is the same as Table 5-1 and Table 5-2.

[0139] The difference between this embodiment and embodiment 3 is that the values ​​of the relevant parameters shown in Table 10 are different. The values ​​of the parameters in this embodiment are shown in the 'Example 4' column in Table 10. The specific description of the meaning represented by each parameter is the same as that in the above embodiment 1, and will not be repeated here.

[0140] Fig.11 The axial chromatic aberration curves of the optical photography lenses of Examples 3 and 4 are shown, which indicate the deviation of the convergent focus of light rays of different wavelengths passing through the back of the lens. Fig.12 Astigmatism curves of the optical photographic lenses of Examples 3 and 4 are shown, which represent meridional field curvature and sagittal field curvature. Fig.13 The distortion curves of the optical photographic lenses of Example 3 and Example 4 are shown, which represent the distortion magnitude values ​​corresponding to different image heights. Fig.14 The magnification chromatic aberration curves of the optical photography lenses of Example 3 and Example 4 are shown, which represent the deviations of different image heights on the imaging surface after the light passes through the lens. Figures 11 to 14 It can be seen that the optical photography lenses provided in Examples 3 and 4 can achieve good imaging quality.

[0141] Example 5

[0142] The following reference Fig.15 Describe the optical photography lens according to Embodiment 5 of the present application, Fig.15 A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Example 5 of the present application is shown.

[0143] In this embodiment, the optical photographic lens comprises a first lens E1 ( Fig.15 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0144] In this embodiment, the optical photographic lens further includes a first component and a second component arranged in sequence from a first lens E1 (not shown) to the image side along the X-axis, such as Fig.15 As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0145] In this embodiment, the optical photography lens further includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0146] In this embodiment, the first lens E1 (not shown) has negative power, its incident surface S1 is convex, its exit surface S2 is concave, and its reflection surface S3 is a plane. The second lens E2 has positive power, its object side surface S4 is convex, and its image side surface S5 is convex. The third lens E3 has negative power, its object side surface S6 is convex, and its image side surface S7 is concave. The fourth lens E4 has positive power, its object side surface S8 is convex, and its image side surface S9 is convex. The fifth lens E5 has positive power, its object side surface S10 is concave, and its image side surface S11 is convex. The sixth lens E6 has negative power, its object side surface S12 is convex, and its image side surface S13 is concave. The seventh lens E7 has negative power, its object side surface S14 is concave, and its image side surface S15 is convex.

[0147] In this embodiment, the optical photography lens may further include, for example, a filter (not shown in the figure) located on the image side of the seventh lens E7, having an object-side surface S16 and an image-side surface S17, and an imaging surface S18 (not shown in the figure) located on the image side of the filter. Light from the object may, for example, sequentially pass through each surface S1 to S17 and finally be imaged on the imaging surface S18.

[0148] Table 6 shows basic parameters of the optical photography lens of Example 5, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0149]

[0150]

[0151] Table 6

[0152] In this embodiment, the incident surface S1 and the exit surface S2 of the first lens E1, and the object side surface and the image side surface of any lens from the second lens E2 to the seventh lens E7 are all aspherical surfaces. The surface shape of each aspherical surface can be defined by the formula (1) given in the above embodiment 1. Tables 7-1 and 7-2 show 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, A 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0153] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.81E-05 3.07E-04 1.69E-03 3.41E-03 -4.77E-03 -1.11E-02 -8.23E-04 S2 1.64E-06 2.42E-06 -2.61E-04 -4.48E-04 7.78E-05 1.69E-03 -1.25E-04 S4 -5.55E-07 -3.09E-05 2.26E-05 4.65E-05 1.44E-04 -5.25E-04 1.84E-04 S5 1.20E-07 1.73E-05 3.22E-07 -3.31E-06 -9.66E-05 2.23E-04 -1.11E-04 S6 -1.73E-08 -5.69E-06 -4.72E-07 2.64E-06 4.34E-05 -7.82E-05 4.46E-05 S7 1.77E-09 1.27E-06 7.22E-08 -1.58E-06 -1.37E-05 1.93E-05 -1.29E-05 S8 -1.31E-10 -2.02E-07 -5.75E-09 4.59E-07 3.01E-06 -3.34E-06 2.70E-06 S9 7.08E-12 2.30E-08 2.64E-10 -7.97E-08 -4.66E-07 4.01E-07 -4.15E-07 S10 -2.77E-13 -1.89E-09 -6.61E-12 9.08E-09 5.10E-08 -3.28E-08 4.66E-08 S11 7.73E-15 1.11E-10 7.07E-14 -7.01E-10 -3.94E-09 1.73E-09 -3.77E-09 S12 -1.50E-16 -4.50E-12 0.00E+00 3.64E-11 2.10E-10 -4.96E-11 2.13E-10 S13 1.93E-18 1.21E-13 0.00E+00 -1.22E-12 -7.35E-12 1.78E-13 -8.01E-12 S14 -1.47E-20 -1.92E-15 0.00E+00 2.40E-14 1.52E-13 3.11E-14 1.79E-13 S15 5.00E-23 1.37E-17 0.00E+00 -2.10E-16 -1.41E-15 -6.45E-16 -1.79E-15

[0154] Table 7-1

[0155] Face number A18 A20 A22 A24 A26 A28 A30 S1 4.08E-04 6.85E-03 1.36E-03 -2.72E-02 -2.80E-02 -9.71E-03 -5.95E-03 S2 -5.00E-05 -9.93E-04 2.47E-03 8.80E-03 6.87E-03 4.76E-04 2.08E-04 S4 3.16E-05 3.73E-04 -1.18E-03 -3.21E-03 -2.24E-03 -2.31E-04 2.62E-05 S5 8.47E-07 -1.45E-04 4.44E-04 1.51E-03 1.05E-03 1.69E-04 -1.44E-05 S6 -8.73E-06 4.42E-05 -1.40E-04 -7.27E-04 -5.16E-04 -8.43E-05 4.66E-06 S7 5.01E-06 -9.63E-06 3.33E-05 2.87E-04 2.06E-04 2.92E-05 -1.36E-06 S8 -1.57E-06 1.45E-06 -4.61E-06 -8.49E-05 -6.10E-05 -7.30E-06 3.46E-07 S9 3.17E-07 -1.47E-07 -2.76E-08 1.83E-05 1.32E-05 1.36E-06 -6.89E-08 S10 -4.36E-08 9.58E-09 1.59E-07 -2.86E-06 -2.08E-06 -1.94E-07 1.01E-08 S11 4.13E-09 -3.59E-10 -3.47E-08 3.20E-07 2.36E-07 2.11E-08 -1.05E-09 S12 -2.66E-10 5.90E-12 3.99E-09 -2.51E-08 -1.87E-08 -1.73E-09 7.45E-11 S13 1.12E-11 0.00E+00 -2.70E-10 1.30E-09 9.90E-10 1.00E-10 -3.44E-12 S14 -2.75E-13 0.00E+00 1.01E-11 -4.05E-11 -3.14E-11 -3.63E-12 9.29E-14 S15 3.01E-15 0.00E+00 -1.63E-13 5.70E-13 4.53E-13 6.13E-14 -1.11E-15

[0156] Table 7-2

[0157] Referring to Table 10, the values ​​of the relevant parameters in this embodiment are respectively shown in the 'Example 5' column in Table 10, wherein the specific description of the meaning represented by each parameter is the same as that in the above Example 1, and will not be repeated here.

[0158] Example 6

[0159] The following reference Fig.16 Describe the optical photography lens according to Example 6 of the present application, Fig.16A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Example 6 of the present application is shown.

[0160] In this embodiment, the optical photographic lens also includes a first lens E1 ( Fig.16 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0161] In this embodiment, similar to Embodiment 5, the optical photographic lens also includes a first component and a second component arranged in sequence from the first lens E1 (not shown) to the image side along the X-axis, such as Fig.16 As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0162] In this embodiment, similar to Embodiment 5, the optical photographic lens also includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0163] In addition, the basic parameter table of the optical photographic lens of this embodiment is the same as Table 6, and the high-order coefficient table of the aspherical mirror surface is the same as Table 7-1 and Table 7-2.

[0164] The difference between this embodiment and embodiment 5 is that the values ​​of the relevant parameters shown in Table 10 are different. The values ​​of the parameters in this embodiment are shown in the 'Example 6' column in Table 10. The specific description of the meaning represented by each parameter is the same as that in the above embodiment 1, and will not be repeated here.

[0165] Fig.17 The axial chromatic aberration curves of the optical photographic lenses of Examples 5 and 6 are shown, which indicate the deviation of the convergent focus of light rays of different wavelengths passing through the rear of the lens. Fig.18 Astigmatism curves of the optical photographic lenses of Examples 5 and 6 are shown, which represent meridional field curvature and sagittal field curvature. Fig.19 The distortion curves of the optical photographic lenses of Examples 5 and 6 are shown, which represent the distortion magnitude values ​​corresponding to different image heights. Fig. 20 The magnification chromatic aberration curves of the optical photography lenses of Example 5 and Example 6 are shown, which represent the deviations of different image heights on the imaging surface after the light passes through the lens. Figures 17 to 20 It can be seen that the optical photography lenses provided in Examples 5 and 6 can achieve good imaging quality.

[0166] Example 7

[0167] The following reference Fig.21 Describe the optical photography lens according to Example 7 of the present application, Fig.21 A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Example 7 of the present application is shown.

[0168] In this embodiment, the optical photographic lens comprises a first lens E1 ( Fig.21 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0169] In this embodiment, the optical photographic lens further includes a first component and a second component arranged in sequence from a first lens E1 (not shown) to the image side along the X-axis, such as Fig.21As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0170] In this embodiment, the optical photography lens further includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0171] In this embodiment, the first lens E1 (not shown) has negative power, its incident surface S1 is convex, its exit surface S2 is concave, and its reflection surface S3 is a plane. The second lens E2 has positive power, its object side surface S4 is convex, and its image side surface S5 is convex. The third lens E3 has negative power, its object side surface S6 is convex, and its image side surface S7 is concave. The fourth lens E4 has positive power, its object side surface S8 is convex, and its image side surface S9 is convex. The fifth lens E5 has positive power, its object side surface S10 is concave, and its image side surface S11 is convex. The sixth lens E6 has negative power, its object side surface S12 is convex, and its image side surface S13 is concave. The seventh lens E7 has negative power, its object side surface S14 is concave, and its image side surface S15 is concave.

[0172] In this embodiment, the optical photography lens may further include, for example, a filter (not shown in the figure) located on the image side of the seventh lens E7, having an object-side surface S16 and an image-side surface S17, and an imaging surface S18 (not shown in the figure) located on the image side of the filter. Light from the object may, for example, sequentially pass through each surface S1 to S17 and finally be imaged on the imaging surface S18.

[0173] Table 8 shows basic parameters of the optical photography lens of Example 7, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0174]

[0175]

[0176] Table 8

[0177] In this embodiment, the incident surface S1 and the exit surface S2 of the first lens E1, and the object side surface and the image side surface of any lens from the second lens E2 to the seventh lens E7 are all aspherical surfaces. The surface shape of each aspherical surface can be defined by the formula (1) given in the above embodiment 1. Tables 9-1 and 9-2 show 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, A 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0178] Face number A4 A6 A8 A10 A12 A14 A16 S1 1.87E-04 3.06E-03 1.02E-02 2.39E-02 -1.95E-02 -5.46E-02 -2.59E-03 S2 3.43E-05 -1.47E-03 -8.99E-03 -2.37E-02 -1.42E-02 2.11E-02 -4.14E-03 S4 -3.72E-05 3.51E-04 9.22E-03 2.41E-02 2.52E-02 -2.54E-02 1.26E-02 S5 2.58E-05 8.74E-04 -1.08E-02 -1.84E-02 -2.53E-02 4.60E-02 -2.11E-02 S6 -1.16E-05 -1.38E-03 1.14E-02 1.08E-02 2.08E-02 -5.94E-02 2.41E-02 S7 3.65E-06 1.13E-03 -9.26E-03 -5.42E-03 -1.51E-02 5.16E-02 -1.97E-02 S8 -8.27E-07 -6.16E-04 5.51E-03 2.42E-03 9.23E-03 -3.12E-02 1.17E-02 S9 1.37E-07 2.36E-04 -2.37E-03 -9.22E-04 -4.36E-03 1.34E-02 -5.11E-03 S10 -1.65E-08 -6.45E-05 7.34E-04 2.79E-04 1.52E-03 -4.12E-03 1.64E-03 S11 1.44E-09 1.25E-05 -1.62E-04 -6.29E-05 -3.81E-04 8.97E-04 -3.84E-04 S12 -8.74E-11 -1.68E-06 2.47E-05 9.99E-06 6.62E-05 -1.35E-04 6.32E-05 S13 3.54E-12 1.48E-07 -2.49E-06 -1.05E-06 -7.56E-06 1.32E-05 -6.94E-06 S14 -8.53E-14 -7.71E-09 1.49E-07 6.50E-08 5.10E-07 -7.61E-07 4.57E-07 S15 9.27E-16 1.79E-10 -3.98E-09 -1.80E-09 -1.54E-08 1.92E-08 -1.36E-08

[0179] Table 9-1

[0180] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.21E-03 2.91E-02 7.96E-03 -1.40E-01 -1.47E-01 -4.36E-02 -2.82E-02 S2 -1.81E-03 5.85E-03 5.90E-02 1.61E-01 1.28E-01 8.55E-03 3.40E-03 S4 5.75E-03 -4.31E-02 -1.40E-01 -2.29E-01 -1.49E-01 -1.74E-02 2.03E-03 S5 -1.07E-02 1.09E-01 2.61E-01 3.56E-01 2.10E-01 4.21E-02 -6.03E-03 S6 1.36E-02 -1.84E-01 -3.83E-01 -4.97E-01 -2.84E-01 -7.68E-02 8.60E-03 S7 -1.21E-02 2.19E-01 4.28E-01 5.57E-01 3.16E-01 1.02E-01 -8.16E-03 S8 7.72E-03 -1.87E-01 -3.60E-01 -4.77E-01 -2.73E-01 -9.81E-02 5.43E-03 S9 -3.56E-03 1.16E-01 2.24E-01 3.05E-01 1.77E-01 6.91E-02 -2.59E-03 S10 1.19E-03 -5.21E-02 -1.03E-01 -1.44E-01 -8.54E-02 -3.54E-02 8.91E-04 S11 -2.86E-04 1.68E-02 3.39E-02 4.89E-02 2.99E-02 1.30E-02 -2.19E-04 S12 4.83E-05 -3.76E-03 -7.84E-03 -1.17E-02 -7.39E-03 -3.36E-03 3.77E-05 S13 -5.42E-06 5.57E-04 1.21E-03 1.85E-03 1.22E-03 5.75E-04 -4.28E-06 S14 3.64E-07 -4.92E-05 -1.11E-04 -1.74E-04 -1.21E-04 -5.87E-05 2.89E-07 S15 -1.11E-08 1.95E-06 4.58E-06 7.42E-06 5.40E-06 2.70E-06 -8.77E-09

[0181] Table 9-2

[0182] Referring to Table 10, the values ​​of the relevant parameters in this embodiment are shown in the 'Embodiment 7' column in Table 10, wherein the specific description of the meaning represented by each parameter is the same as that in the above-mentioned Embodiment 1, and will not be repeated here.

[0183] Example 8

[0184] The following reference Fig. 22 Describe the optical photography lens according to Example 8 of the present application, Fig. 22 A schematic structural diagram of a first component, a second component and a plurality of spacer elements of an optical photographic lens according to Example 8 of the present application is shown.

[0185] In this embodiment, the optical photographic lens also includes a first lens E1 ( Fig. 22 (not shown), the first lens E1 can be used to change the direction of the light path. For example, the first lens E1 can be configured so that light incident on the first lens E1 from the object side along the Y optical axis is reflected and then emitted from the first lens E1 along the X optical axis, wherein the Y optical axis is perpendicular to the X optical axis.

[0186] In this embodiment, similar to Embodiment 7, the optical photographic lens also includes a first component and a second component arranged in sequence from the first lens E1 (not shown) to the image side along the X-axis, such as Fig. 22 As shown, the first component includes a first lens barrel P10 and a second lens E2, a third lens E3 and a fourth lens E4 assembled in the first lens barrel P10, and the second lens E2, the third lens E3 and the fourth lens E4 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis; the second component includes a second lens barrel P20 and a fifth lens E5, a sixth lens E6 and a seventh lens E7 assembled in the second lens barrel P20, and the fifth lens E5, the sixth lens E6 and the seventh lens E7 are arranged in sequence from the first lens E1 (not shown) to the image side along the X-ray axis.

[0187] In this embodiment, similar to Embodiment 7, the optical photographic lens also includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object-side surface directly in contact with the image-side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third lens E3; a third auxiliary spacer P3b, located between the third lens E3 and the fourth lens E4, with its object-side surface directly in contact with the image-side surface of the third spacer P3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with its object-side surface directly in contact with the image-side surface of the fifth lens E5; and a sixth spacer P6, located between the sixth lens E6 and the seventh lens E7, with its object-side surface directly in contact with the image-side surface of the sixth lens E6.

[0188] In addition, the basic parameter table of the optical photographic lens of this embodiment is the same as Table 8, and the high-order coefficient table of the aspherical mirror surface is the same as Table 9-1 and Table 9-2.

[0189] The difference between this embodiment and embodiment 7 is that the values ​​of the relevant parameters shown in Table 10 are different. The values ​​of the parameters in this embodiment are shown in the 'Example 8' column in Table 10. The specific description of the meaning represented by each parameter is the same as that in the above embodiment 1, and will not be repeated here.

[0190] Fig.23 The axial chromatic aberration curves of the optical photographic lenses of Examples 7 and 8 are shown, which indicate the deviation of the convergent focus of light rays of different wavelengths passing through the rear of the lens. Fig.24 Astigmatism curves of the optical photographic lenses of Examples 7 and 8 are shown, which represent meridional field curvature and sagittal field curvature. Fig.25 The distortion curves of the optical photographic lenses of Example 7 and Example 8 are shown, which represent the distortion magnitude values ​​corresponding to different image heights. Fig.26The magnification chromatic aberration curves of the optical photographic lenses of Example 7 and Example 8 are shown, which represent the deviations of different image heights on the imaging surface after the light passes through the lens. Figure 23 to Figure 26 It can be seen that the optical photography lenses provided in Examples 7 and 8 can achieve good imaging quality.

[0191]

[0192]

[0193] Table 10

[0194] In addition, in Examples 1 to 8, the effective focal length values ​​f1 to f7 of the first lens to the seventh lens, the combined focal length f34 of the third lens and the fourth lens, the combined focal length f56 of the fifth lens and the sixth lens, and the combined focal length f67 of the sixth lens and the seventh lens are respectively as shown in Table 11 below.

[0195] Parameters / Examples Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 f1(mm) -499.07 -499.07 -268.06 -268.06 -369.41 -369.41 -164.38 -164.38 f2(mm) 15.00 15.00 11.38 11.38 16.24 16.24 8.68 8.68 f3(mm) -10.44 -10.44 -8.31 -8.31 -12.11 -12.11 -7.24 -7.24 f4(mm) 7.83 7.83 6.24 6.24 9.14 9.14 5.55 5.55 f5(mm) 56.88 56.88 43.61 43.61 62.05 62.05 33.80 33.80 f6(mm) -13.27 -13.27 -10.61 -10.61 -15.57 -15.57 -9.26 -9.26 f7(mm) -83.96 -83.96 -48.73 -48.73 -61.21 -61.21 -23.38 -23.38 f34(mm) 20.09 20.09 16.39 16.39 23.96 23.96 14.10 14.10 f56(mm) -17.24 -17.24 -14.05 -14.05 -20.90 -20.90 -12.93 -12.93 f67(mm) -11.30 -11.30 -8.58 -8.58 -12.21 -12.21 -6.45 -6.45

[0196] Table 11 Examples 1 to 8 respectively satisfy the conditions shown in the following Table 12.

[0197] Conditional / Example Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 CP2 / T23 3.53 3.45 5.91 5.91 3.01 2.98 5.95 5.95 |f2 / d2s|+|f2 / d2m| 6.23 6.36 3.09 3.11 5.75 5.80 2.07 2.12 f1×N1 / d10s -150.43 -150.43 -50.85 -50.85 -96.71 -96.71 -28.35 -28.35 (EP102+CP2) / CT2 0.93 0.92 1.92 1.92 0.89 0.88 2.40 2.40 (R3×R4) / (D2s×D2m) -8.74 -8.71 -2.10 -2.10 -8.00 -7.98 -1.16 -1.16 (T23+CT3+CP3) / EP23 1.41 1.41 0.63 0.63 1.15 1.15 0.44 0.45 f3 / (D3m-d3m) -7.42 -7.75 -3.59 -3.65 -8.01 -8.01 -3.30 -3.25 (R5×CP2) / (R6×CP3) 72.88 71.21 112.63 112.63 71.95 65.28 141.16 70.58 (CP3+CP3b)×N4 / f4 0.16 0.16 0.27 0.27 0.12 0.12 0.31 0.31 (CT4-T34) / CP3 59.54 59.54 66.59 66.59 70.23 64.38 34.27 17.13 f34 / L10 3.97 3.97 2.06 2.06 3.94 3.94 1.57 1.57 (f5 / R9) / (D5s / d5s) -2.07 -2.03 -2.25 -2.25 -1.67 -1.68 -1.35 -1.35 f5×N5 / (D5s+D5m) 8.16 8.16 4.57 4.57 8.00 8.00 3.27 3.27 (f56+f67) / L20 -10.08 -10.08 -5.20 -5.20 -10.27 -10.27 -4.45 -4.45 f7 / (D6m-d6m) -34.87 -34.30 -18.09 -17.69 -25.41 -25.84 -10.64 -10.64 EP56 / (T67-T56) 0.63 0.61 1.40 1.39 0.70 0.70 1.51 1.51

[0198] Table 12

[0199] The present application also provides an imaging device, which is provided with an electronic photosensitive element for imaging, and the electronic photosensitive element can be a charge coupled device (CCD) or a complementary metal oxide semiconductor (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 photographic lens described above.

[0200] 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 protection 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 concept of the present application. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical solution.

Claims

1. An optical photographic lens, characterized in that: include: a first lens, wherein the first lens is configured such that light incident on the first lens from the object side along the Y optical axis direction is reflected and then emitted from the first lens along the X optical axis direction, wherein the Y optical axis is perpendicular to the X optical axis; A second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens are arranged in order from the first lens to the image side along the X-ray axis; and a plurality of spacer elements, the plurality of spacer elements at least comprising: a second spacer element located between the second lens and the third lens and in direct contact with the image side surface of the second lens, and a third spacer element located between the third lens and the fourth lens and in direct contact with the image side surface of the third lens; The optical photography lens meets the following requirements: 2.9<CP2 / T23<6.0 and 65.0<(R5×CP2) / (R6×CP3)<142.0, Among them, CP2 is the maximum thickness of the second spacing element along the X-ray axis, T23 is the air gap between the second lens and the third lens on the X-ray axis, R5 is the curvature radius of the object side of the third lens, R6 is the curvature radius of the image side of the third lens, and CP3 is the maximum thickness of the third spacing element along the X-ray axis.

2. The optical photographic lens according to claim 1, wherein: The optical photography lens further includes: a first lens barrel and a second lens barrel arranged in sequence from the first lens to the image side along the X-ray axis, wherein: The second lens, the third lens, and the fourth lens are assembled in the first lens barrel, and the fifth lens, the sixth lens, and the seventh lens are assembled in the second lens barrel.

3. The optical photographic lens according to claim 1, wherein: The effective focal length f2 of the second lens, the inner diameter d2s of the object side surface of the second spacing element, and the inner diameter d2m of the image side surface of the second spacing element satisfy: 2.0<|f2 / d2s|+|f2 / d2m|<6.

5.

4. The optical photographic lens according to claim 2, wherein: The effective focal length f1 of the first lens, the refractive index N1 of the first lens, and the inner diameter d10s of the object side end surface of the first lens barrel satisfy: -151.0<f1×N1 / d10s<-28.

0.

5. The optical photographic lens according to claim 2, wherein: The distance EP102 from the object side end surface of the first lens barrel to the object side surface of the second spacer element on the X-ray axis and the center thickness CT2 of the second lens on the X-ray axis satisfy: 0.8<(EP102+CP2) / CT2<2.

5.

6. The optical photographic lens according to claim 1, wherein: The curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, the outer diameter D2s of the object side surface of the second spacer element, and the outer diameter D2m of the image side surface of the second spacer element satisfy: -9.0<(R3×R4) / (D2s×D2m)<-1.

0.

7. The optical photographic lens according to claim 1, wherein: The center thickness CT3 of the third lens on the X-axis and the distance EP23 from the image side surface of the second spacer element to the object side surface of the third spacer element on the X-axis satisfy: 0.4<(T23+CT3+CP3) / EP23<1.

5.

8. The optical photographic lens according to claim 1, wherein: The effective focal length f3 of the third lens, the outer diameter D3m of the image side surface of the third spacing element, and the inner diameter d3m of the image side surface of the third spacing element satisfy: -8.2<f3 / (D3m-d3m)<-3.

0.

9. The optical photographic lens according to any one of claims 1 to 8, characterized in that: The plurality of spacer elements further include: a third auxiliary spacer element, located between the third lens and the fourth lens and in direct contact with the image side surface of the third spacer element; The maximum thickness CP3b of the third auxiliary spacer element along the X-axis direction, the refractive index N4 of the fourth lens and the effective focal length f4 of the fourth lens satisfy: 0.0<(CP3+CP3b)×N4 / f4<0.

5.

10. The optical photographic lens according to any one of claims 1 to 8, characterized in that: The center thickness CT4 of the fourth lens on the X-axis and the air interval T34 between the third lens and the fourth lens on the X-axis satisfy: 17.0<(CT4-T34) / CP3<71.

0.

11. The optical photographic lens according to claim 2, wherein: The combined focal length f34 of the third lens and the fourth lens and the maximum height L10 of the first lens barrel along the X-axis direction satisfy: 1.5<f34 / L10<4.

0.

12. The optical photographic lens according to any one of claims 1 to 8, characterized in that: The plurality of spacer elements further include: a fifth spacer element, located between the fifth lens and the sixth lens and in direct contact with the image side surface of the fifth lens; The effective focal length f5 of the fifth lens, the curvature radius R9 of the object side surface of the fifth lens, the outer diameter D5s of the object side surface of the fifth spacing element, and the inner diameter d5s of the object side surface of the fifth spacing element satisfy: -2.4<(f5 / R9) / (D5s / d5s)<-1.

2.

13. The optical photographic lens according to any one of claims 1 to 8, characterized in that: The plurality of spacer elements further include: a fifth spacer element, located between the fifth lens and the sixth lens and in direct contact with the image side surface of the fifth lens; The effective focal length f5 of the fifth lens, the refractive index N5 of the fifth lens, the outer diameter D5s of the object side surface of the fifth spacer element, and the outer diameter D5m of the image side surface of the fifth spacer element satisfy: 3.1<f5×N5 / (D5s+D5m)<8.

2.

14. The optical photographic lens according to claim 2, wherein: The combined focal length f56 of the fifth lens and the sixth lens, the combined focal length f67 of the sixth lens and the seventh lens, and the maximum height L20 of the second lens barrel along the X-axis direction satisfy: -10.5<(f56+f67) / L20<-4.

0.

15. The optical photographic lens according to any one of claims 1 to 8, characterized in that: The plurality of spacer elements further include: a sixth spacer element, located between the sixth lens and the seventh lens and in direct contact with the image side surface of the sixth lens; The effective focal length f7 of the seventh lens, the outer diameter D6m of the image side surface of the sixth spacing element, and the inner diameter d6m of the image side surface of the sixth spacing element satisfy: -35.0<f7 / (D6m-d6m)<-10.

0.

16. The optical photographic lens according to any one of claims 1 to 8, characterized in that: The plurality of spacer elements further include: a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side surface of the fifth lens; and a sixth spacer element located between the sixth lens and the seventh lens and in direct contact with the image side surface of the sixth lens; The distance EP56 from the image side surface of the fifth spacer element to the object side surface of the sixth spacer element on the X-ray axis, the air interval T67 between the sixth lens and the seventh lens on the X-ray axis, and the air interval T56 between the fifth lens and the sixth lens on the X-ray axis satisfy: 0.5<EP56 / (T67-T56)<1.

6.

17. The optical photographic lens according to any one of claims 1 to 8, characterized in that: The first lens has negative optical power, its incident surface is convex, its reflection surface is flat, and its exit surface is concave; The second lens has positive refractive power, and its object side surface is convex, and its image side surface is convex; The third lens has negative optical power, its object side surface is convex, and its image side surface is concave; The fourth lens has positive refractive power, and its object side surface is convex, and its image side surface is convex; The fifth lens has positive refractive power, its object side surface is concave, and its image side surface is convex; The sixth lens has negative optical power, its object side surface is convex, and its image side surface is concave; and The seventh lens element has negative optical power, and its object side surface is concave.

Images