Optical camera lens

Abstract

The embodiment of the utility model discloses an optical pick-up lens, which comprises a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group and a sixth lens group which are sequentially arranged from an object side to an image side, the second lens group has positive focal power and comprises a third lens, a fourth lens, a fifth lens and a sixth lens; the third lens group has negative focal power and comprises a seventh lens, an eighth lens and a ninth lens; the optical pick-up lens also comprises at least one spacing element, and the at least one spacing element comprises a seventh spacing element which is located between the seventh lens and the eighth lens and is in direct contact with the image side of the seventh lens, and an eighth spacing element which is located between the eighth lens and the ninth lens and is in direct contact with the image side of the eighth lens.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and in particular, to an optical camera lens comprising multiple lenses. Background Art

[0002] With the rapid development of portable electronic products such as smartphones, mobile phone photography has become an important activity in people's daily lives. The imaging quality of optical camera lenses has gradually become one of the important factors for users to choose electronic products. In order to meet people's diverse shooting needs, optical camera lenses are gradually developing in the direction of professional camera features such as longer focal lengths and optical zoom.

[0003] A zoom lens is an optical system that can continuously change the focal length within a certain range while keeping the image plane stationary. The focal length and / or magnification of the zoom lens can be changed by moving at least one lens or lens group in the zoom lens along the optical axis, thereby changing the position of the corresponding lens / lens group on the optical axis and / or changing the spacing between it and the adjacent lens / lens group.

[0004] However, when such zoom lenses are used in electronic products, as the number of lenses increases, the number of components that can generate stray light inside the lens also increases accordingly. For example, stray light is easily generated at the edge of the rear lens group, which is contrary to the requirement of high image cleanliness. The overall length of the lens is limited, and due to space constraints, the adjustment space for stray light improvement is small, and the movement range of the group is small, so the design is difficult.

[0005] As mentioned above, current optical camera lenses often have at least one problem, such as unstable assembly and easy stray light. Therefore, how to optimize the structure of the optical camera lens to improve the imaging quality has become a problem that needs to be solved urgently. Utility Model Content

[0006] The embodiment of the present application provides an optical camera lens, which includes: a first lens group with negative optical power, which includes a first lens and a second lens; a second lens group with positive optical power, which includes a third lens, a fourth lens, a fifth lens and a sixth lens; and a third lens group with negative optical power, which includes a seventh lens, an eighth lens and a ninth lens; the optical camera lens further includes at least one spacing element, the at least one spacing element includes: a seventh spacing element located between the seventh lens and the eighth lens and in direct contact with the image side of the seventh lens, and a seventh spacing element located between the eighth lens and the ninth lens and in direct contact with the image side of the eighth lens. an eighth spacing element directly in contact with the image side of the eighth lens; wherein, the combined focal length f12 of the first lens and the second lens, the combined focal length f3456 of the third lens, the fourth lens, the fifth lens and the sixth lens, and the combined focal length f78 of the seventh lens and the eighth lens satisfy: -8.0<(f12+f789) / f3456<-7.0; and the curvature radius R15 of the object side surface of the eighth lens, the curvature radius R16 of the image side surface of the eighth lens, the inner diameter d7m of the image side surface of the seventh spacing element, and the inner diameter d8s of the object side surface of the eighth spacing element satisfy: -8.0<R15*d7m / (R16*d8s)<-3.5.

[0007] In one or more embodiments, the optical camera lens includes a first lens barrel, a second lens barrel and a third lens barrel, wherein the first lens group is located in the first lens barrel, the second lens group is located in the second lens barrel, and the third lens group is located in the third lens barrel.

[0008] In one or more embodiments, at least one spacer element also includes a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, and the effective focal length f1 of the first lens, the curvature radius R1 of the object side of the first lens, and the outer diameter D1s of the object side of the first spacer element satisfy: 16.5<f1 / R1+f1 / D1s<20.0.

[0009] In one or more embodiments, at least one spacer element also includes a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, and the curvature radius R2 of the image side surface of the first lens, the inner diameter d1s of the object side surface of the first spacer element, the curvature radius R4 of the image side surface of the second lens, and the inner diameter d1m of the image side surface of the first spacer element satisfy: 0.5<(R2*d1s) / (R4*d1m)<1.5.

[0010] In one or more embodiments, at least one spacer element also includes a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, and the curvature radius R3 of the object side surface of the second lens, the effective focal length f2 of the second lens, and the inner diameter d1m of the image side surface of the first spacer element satisfy: -8.0<R3 / f2+R3 / d1m≤-7.0.

[0011] In one or more embodiments, at least one spacer element also includes a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and the center thickness CT3 of the third lens on the optical axis, the air gap T34 between the third lens and the fourth lens on the optical axis, and the gap EP203 between the front end surface of the second lens barrel and the third spacer element satisfy: 1.5<(CT3+T34) / EP203<2.5.

[0012] In one or more embodiments, the maximum height L20 of the second lens barrel, the center thickness CT3 of the third lens on the optical axis, the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis satisfy: 1.5<L20 / (CT3+CT4+CT5+CT6)<2.0.

[0013] In one or more embodiments, at least one spacer element also includes a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens. The effective focal length f3 of the third lens, the radius of curvature R4 of the image side surface of the second lens, and the outer diameter D3s of the object side surface of the third spacer element satisfy: 1.0<f3 / R4+f3 / D3s<2.0.

[0014] In one or more embodiments, at least one spacer element also includes a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and a fourth spacer element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens. The air gap T34 between the third lens and the fourth lens on the optical axis, the center thickness CT3 of the third lens on the optical axis, and the gap EP34 between the third spacer element and the fourth spacer element satisfy: 2.0<(T34+CT3) / EP34<3.1.

[0015] In one or more embodiments, at least one spacer element also includes a fourth spacer element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens, and a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side of the fifth lens. The air gap T45 between the fourth lens and the fifth lens on the optical axis, the air gap T56 between the fifth lens and the sixth lens on the optical axis, the maximum thickness CP5 of the fifth spacer element, and the gap EP45 between the fourth spacer element and the fifth spacer element satisfy: 7.0<T56 / T45+CP5 / EP45<8.5.

[0016] In one or more embodiments, a central thickness CT8 of the eighth lens on the optical axis and an interval EP78 between the seventh spacing element and the eighth spacing element satisfy: 1.0<CT8 / EP78<1.6.

[0017] In one or more embodiments, at least one spacer element also includes a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and a fourth spacer element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens. The curvature radius R9 of the object side surface of the fifth lens, the curvature radius R10 of the image side surface of the fifth lens, the outer diameter D3m of the image side surface of the third spacer element, and the outer diameter D4s of the object side surface of the fourth spacer element satisfy: -17.0<R9*D3m / (R10*D4s)<-13.0.

[0018] In one or more embodiments, the maximum height L30 of the third lens barrel, the air interval T78 between the seventh lens and the eighth lens on the optical axis, and the air interval T89 between the eighth lens and the ninth lens on the optical axis satisfy: 2.5<L30 / (T78+T89)<3.5.

[0019] In one or more embodiments, at least one spacer element also includes a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, and the air gap T12 between the first lens and the second lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, and the interval EP101 between the front end surface of the first lens barrel and the first spacer element satisfy: 1.5<T12 / CT1+EP101 / CT1<2.5.

[0020] In one or more embodiments, the center thickness CT7 of the seventh lens on the optical axis, the air interval T78 between the seventh lens and the eighth lens on the optical axis, and the interval EP307 between the front end surface of the third lens barrel and the seventh spacing element satisfy: 5.0<T78 / CT7+EP307 / CT7<6.0.

[0021] In one or more embodiments, the maximum height L10 of the first lens barrel, the center thickness CT1 of the first lens on the optical axis, and the center thickness CT2 of the second lens on the optical axis satisfy: 2.0<L10 / (CT1+CT2)<3.0.

[0022] In one or more embodiments, at least one spacer element also includes a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and a fourth spacer element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens. The effective focal length f4 of the fourth lens, the radius of curvature R8 of the image side surface of the fourth lens, the maximum thickness CP3 of the third spacer element, and the maximum thickness CP4 of the fourth spacer element satisfy: -6.0<R8*CP3 / (f4*CP4)<-1.0.

[0023] In one or more embodiments, the outer diameter D8m of the image side surface of the eighth spacer element, the curvature radius R17 of the object side surface of the ninth lens, and the maximum effective radius DT91 of the object side surface of the ninth lens satisfy: 2.7<D8m / DT91+D8m / R17<3.4.

[0024] The embodiment of the present application provides an optical camera lens. In order to better realize the zoom function of the lens and better balance the aberration, the optical camera lens may include three lens groups. However, the increase in the number of lenses increases the number of structural components inside the lens, which is likely to generate more stray light inside the lens, especially in the rear-end mechanism part. By reasonably allocating the optical focal length of the three lens groups, it is beneficial to better balance the aberrations and improve the resolution of the system. In view of the high risk of light outside the field of view entering the rear-end mechanism part, which is likely to generate more stray light and affect the imaging effect, at least one spacing element is provided, and the inner and outer diameters of the spacing element are constrained while the curvature radius of the corresponding lens is controlled to adjust the field curvature, so that the stray light generated by the reflection of light outside the field of view at the rear-end mechanism part can be effectively blocked, and the stray light caused by light other than effective light can be reduced, thereby improving the imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 1 A schematic structural diagram of an optical camera lens according to Embodiment 1 of the present application is shown;

[0027] Figure 2 A schematic structural diagram of an optical camera lens according to Embodiment 2 of the present application is shown;

[0028] FIG. 3A to FIG. 3DThe axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical camera lens according to Example 1 and Example 2 of the present application when the magnification is 2X are respectively shown;

[0029] Figure 4 A schematic structural diagram of an optical camera lens according to Embodiment 3 of the present application is shown;

[0030] Figure 5 A schematic structural diagram of an optical camera lens according to Embodiment 4 of the present application is shown;

[0031] FIG. 6A to FIG. 6D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical camera lens according to Example 3 and Example 4 of the present application when the magnification is 2X are respectively shown;

[0032] Figure 7 A schematic structural diagram of an optical camera lens according to Embodiment 5 of the present application is shown;

[0033] Figure 8 A schematic structural diagram of an optical camera lens according to Embodiment 6 of the present application is shown;

[0034] 9A to 9D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical camera lens according to Example 5 and Example 6 of the present application when the magnification is 2X are respectively shown;

[0035] Fig.10 A schematic structural diagram of an optical camera lens according to Embodiment 7 of the present application is shown;

[0036] Fig.11 A schematic structural diagram of an optical camera lens according to Embodiment 8 of the present application is shown;

[0037] FIG. 12A to FIG. 12D The axial chromatic aberration curve, astigmatism curve, distortion curve and magnification chromatic aberration curve of the optical camera lens according to Example 7 and Example 8 of the present application when the magnification is 2X are respectively shown;

[0038] Fig.13A and 13B A schematic diagram showing a comparison of stray light elimination effects of the optical camera lenses according to Sample 1 and Sample 2 of the present application; and

[0039] Fig.14A and 14B A schematic diagram comparing the stray light elimination effects of the optical camera lenses of Sample 1 and Sample 3 of the present application is shown. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] In this article, the paraxial region refers to the region 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 region; 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 region. The surface of each lens closest to the object is called the object side of the lens, and the surface of each lens closest to the imaging plane is called the image side of the lens.

[0044] 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.

[0045] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as those commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application 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 patent of the present application. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. For example, the lens groups, lens barrel structures and spacer elements in the embodiments of the present application can be combined arbitrarily, and are not limited to the lens groups in one embodiment can only be combined with the lens barrel structure, spacer elements, etc. of the embodiment.

[0047] The features, principles and other aspects of the present application are described in detail below.

[0048] refer to Figure 1 and Figure 2 As shown, according to one aspect of the present application, an optical camera lens is provided, which may include: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in order from the object side to the image side. As an exemplary embodiment, the three lens groups of the optical camera lens can be respectively used as a zoom group, a compensation group, a focus group, etc., and at least one of the three lens groups is moved along the optical axis, thereby changing the position of the corresponding lens group on the optical axis and / or changing the spacing distance between it and the adjacent lens group, etc., to achieve a change in the focal length and / or a change in the magnification of the optical camera lens. For example, the zoom of the optical camera lens can be achieved by moving the lens group as the zoom group on the optical axis, and the movement of the image plane position during the zoom process can be compensated by moving the lens group as the compensation group along the optical axis, thereby achieving mobile focus imaging of the optical camera lens.

[0049] In an exemplary embodiment, the first lens group may include a first lens and a second lens; the second lens group may include a third lens, a fourth lens, a fifth lens, and a sixth lens; the third lens group may include a seventh lens, an eighth lens, and a ninth lens. Any two adjacent lenses from the first lens to the ninth lens may have a spacing distance therebetween.

[0050] In an exemplary embodiment, the first lens may have positive power. The second lens may have negative power. The third lens may have positive power. The fourth lens may have positive power. The fifth lens may have negative power. The sixth lens may have positive power. The seventh lens may have negative power. The eighth lens may have positive power. The ninth lens may have negative power.

[0051] In an exemplary embodiment, at least one lens group of the optical camera lens is moved along the optical axis to change the spacing between the lens groups, thereby changing the focal length of the optical camera lens, so that the optical camera lens forms a variety of different focus states, such as a wide-angle state or a telephoto state. When the optical camera lens changes between the wide-angle state and the telephoto state, a certain zoom ratio can be achieved, such as 2x, 3x, and 6x. In addition to satisfying a given zoom ratio and image plane position stability, the optical camera lens can also ensure good imaging quality at different focal length positions.

[0052] In an exemplary embodiment, the optical camera lens includes a first barrel, a second barrel, and a third barrel, wherein the first lens group is located in the first barrel, the second lens group is located in the second barrel, and the third lens group is located in the third barrel.

[0053] In an exemplary embodiment, the optical camera lens further includes at least one spacer element, for example, a seventh spacer element located between the seventh lens and the eighth lens and in direct contact with the image side of the seventh lens, and an eighth spacer element located between the eighth lens and the ninth lens and in direct contact with the image side of the eighth lens. Exemplarily, the seventh spacer element may abut against a non-optical region on the image side of the seventh lens, and the eighth spacer element may abut against a non-optical region on the image side of the eighth lens.

[0054] According to an exemplary embodiment of the present application, at least one spacer element may further include any one or more of the following spacer elements: a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, a fourth spacer element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens, and a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side of the fifth lens, etc. Exemplarily, the spacer element may include a spacer, a light shielding sheet, a spacer ring, or a pressure ring, etc. By reasonably setting the number, thickness, inner diameter, and outer diameter of the spacer element, it is helpful to block stray light, improve the imaging quality of the optical camera lens, and improve the assembly stability of the optical camera lens.

[0055] It should be understood that the surface of each spacer element closest to the object is called the object side surface of the spacer element, and the surface of each spacer element closest to the imaging surface is called the image side surface of the spacer element. The surface of the lens barrel closest to the object is called the object side end surface or the front end surface of the lens barrel, and the surface closest to the imaging surface is called the image side end surface or the rear end surface of the lens barrel.

[0056] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formulas: -8.0<(f12+f789) / f3456<-7.0; -8.0<R15*d7m / (R16*d8s)<-3.5, wherein f12 is the combined focal length of the first lens and the second lens, f3456 is the combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens, f789 is the combined focal length of the seventh lens, the eighth lens and the ninth lens, R15 is the curvature radius of the object side surface of the eighth lens, R16 is the curvature radius of the image side surface of the eighth lens, d7m is the inner diameter of the image side surface of the seventh spacer element, and d8s is the inner diameter of the object side surface of the eighth spacer element. By satisfying -8.0<(f12+f789) / f3456<-7.0, the optical focal lengths of the three groups are reasonably distributed, so that the zoom function of the lens can be further realized through the movement of the second lens group and the third lens group, which is beneficial to better balance the aberrations of the optical camera lens group and improve the resolution of the system; by satisfying -8.0<R15*d7m / (R16*d8s)<-3.5, the curvature of the eighth lens is reasonably controlled, and the inner diameter of the image side surface of the seventh spacer element and the inner diameter of the object side surface of the eighth spacer element are constrained while adjusting the field curvature, thereby effectively blocking the stray light generated by the reflection of the light outside the field of view at the rear end mechanism, which is beneficial to improving the clarity of the large image plane and improving the picture quality.

[0057] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 16.5<f1 / R1+f1 / D1s<20.0, wherein f1 is the effective focal length of the first lens, R1 is the radius of curvature of the object side of the first lens, and D1s is the outer diameter of the object side of the first spacing element. By controlling the ratio of the conditional formula within this range, the refraction angle of the system light beam in the first lens can be effectively controlled, the size of the rear end of the lens can be reduced, and the chromatic aberration of the lens can be balanced under the premise of ensuring the illumination of the edge field of view. By constraining the outer diameter of the object side of the first spacing element by the ratio range, the assembly stability can be ensured while controlling the outer diameter.

[0058] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 0.5<(R2*d1s) / (R4*d1m)<1.5, wherein d1s is the inner diameter of the object side surface of the first spacing element, d1m is the inner diameter of the image side surface of the first spacing element, R2 is the radius of curvature of the image side surface of the first lens, and R4 is the radius of curvature of the image side surface of the second lens. By satisfying this conditional formula, by controlling the radius of curvature and the inner diameter of the first lens and the second lens, the light angle of the edge field of view can be within a reasonable range, which can effectively reduce the sensitivity of the system; at the same time, by constraining the inner diameter of the object side surface of the first spacing element and the inner diameter of the image side surface of the first spacing element, stray light other than the effective light can be effectively blocked, thereby improving the imaging quality.

[0059] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: -8.0<R3 / f2+R3 / d1m≤-7.0, where R3 is the radius of curvature of the object side of the second lens, f2 is the effective focal length of the second lens, and d1m is the inner diameter of the image side of the first spacing element. Satisfying this conditional formula can effectively control the refraction angle of the system light beam in the second lens, reduce the difficulty of processing the second lens, reduce the size of the rear end of the lens, and improve the assembly stability; at the same time, by controlling the inner diameter of the image side of the first spacing element, it can also effectively block the invalid light reflected in the second lens group, reducing the possibility of stray light generation.

[0060] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 1.5<(CT3+T34) / EP203<2.5, wherein CT3 is the center thickness of the third lens on the optical axis, T34 is the air interval between the third lens and the fourth lens on the optical axis, and EP203 is the interval between the front end face of the second lens barrel and the third spacing element. By satisfying this conditional formula, the focal length of the third lens group in the optical system can be effectively allocated, which plays a role in balancing the aberration of the optical system, and at the same time, the position distribution of the third and fourth lens groups is controlled, and the interval between the front end face of the second lens barrel and the third spacing element is reasonably constrained, which can effectively reduce the assembly sensitivity and improve the stability of the lens at high temperature and high humidity.

[0061] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 1.5<L20 / (CT3+CT4+CT5+CT6)<2.0, wherein L20 is the maximum height of the second lens barrel, CT3 is the center thickness of the third lens on the optical axis, CT4 is the center thickness of the fourth lens on the optical axis, CT5 is the center thickness of the fifth lens on the optical axis, and CT6 is the center thickness of the sixth lens on the optical axis. When the conditional formula is satisfied, the focal length of the second lens group can be effectively improved by reasonably setting the lens thickness in the second lens barrel, and the maximum height of the second lens barrel can be constrained by the ratio range under the premise of ensuring the imaging quality, so that the thickness uniformity of the second lens barrel can be effectively balanced and the molding stability can be improved.

[0062] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 1.0<f3 / R4+f3 / D3s<2.0, wherein f3 is the effective focal length of the third lens, R4 is the radius of curvature of the image side of the second lens, and D3s is the outer diameter of the object side of the third spacing element. By satisfying this conditional formula and controlling the ratio within this range, the refraction angle of the system light beam in the third lens can be effectively controlled, the aberration of the system can be better balanced, the risk of stray light generation can be reduced, the imaging quality can be improved, and the outer diameter of the object side of the third spacing element can be reasonably controlled to effectively ensure the necessary bearing surface for assembly, thereby ensuring assembly stability.

[0063] In an exemplary embodiment, the optical camera lens according to the present application can satisfy the following conditional formula: 2.0<(T34+CT3) / EP34<3.1, wherein T34 is the air interval between the third lens and the fourth lens on the optical axis, CT3 is the center thickness of the third lens on the optical axis, and EP34 is the interval between the third spacing element and the fourth spacing element. By satisfying this conditional formula, the positions of the third lens and the fourth lens can be reasonably allocated by controlling the ratio range, the height of the second lens group can be effectively controlled, miniaturization can be ensured, and the edge thickness of the fourth lens can be ensured, so that the overall thickness ratio is more reasonable, which is conducive to molding and makes the lens structure more reasonable. At the same time, the amount of light passing through the fourth lens and the fifth lens is controlled to avoid the generation of stray light and improve the imaging quality.

[0064] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 7.0<T56 / T45+CP5 / EP45<8.5, wherein T45 is the air spacing between the fourth lens and the fifth lens on the optical axis, T56 is the air spacing between the fifth lens and the sixth lens on the optical axis, CP5 is the maximum thickness of the fifth spacing element, and EP45 is the spacing between the fourth spacing element and the fifth spacing element. When this conditional formula is satisfied, the field curvature sensitivity of the second lens group can be effectively reduced by reasonably setting the air spacing between the fourth lens, the fifth lens, and the sixth lens; at the same time, by constraining the maximum thickness of the fifth spacing element, the assembly stability can be effectively guaranteed, thereby improving the stability of the yield.

[0065] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 1.0<CT8 / EP78<1.6, wherein CT8 is the center thickness of the eighth lens on the optical axis, and EP78 is the interval between the seventh spacing element and the eighth spacing element. By satisfying this conditional formula and controlling this ratio range, the overall thickness ratio of the eighth lens can be effectively constrained, which is beneficial to the molding stability of the eighth lens, and the overall size of the rear end can be controlled, making the structure more reasonable.

[0066] In an exemplary embodiment, the optical camera lens according to the present application can satisfy the following conditional formula: -17.0<R9*D3m / (R10*D4s)<-13.0, wherein R9 is the radius of curvature of the object side surface of the fifth lens, R10 is the radius of curvature of the image side surface of the fifth lens, D3m is the outer diameter of the image side surface of the third spacing element, and D4s is the outer diameter of the object side surface of the fourth spacing element. By satisfying this conditional formula, the refraction angle of the system light can be controlled by controlling the radius of curvature of the object side surface and the radius of curvature of the image side surface of the fifth lens, which helps to improve the illumination of the edge field of view and improve the sensitivity of the system; in addition, by constraining the outer diameter of the image side surface of the third spacing element and the outer diameter of the object side surface of the fourth spacing element, the assembly support length can be effectively guaranteed, thereby improving the performance of the lens group in high temperature and high humidity reliability experiments.

[0067] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 2.5<L30 / (T78+T89)<3.5, wherein L30 is the maximum height of the third lens barrel, T78 is the air interval between the seventh lens and the eighth lens on the optical axis, and T89 is the air interval between the eighth lens and the ninth lens on the optical axis. Satisfying this conditional formula is beneficial to miniaturization of the third lens group by adjusting the air interval between the seventh lens and the eighth lens on the optical axis, and the air interval between the eighth lens and the ninth lens on the optical axis; at the same time, the maximum height of the third lens barrel is constrained by this conditional formula, and the thickness uniformity of the third lens barrel is ensured.

[0068] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 1.5<T12 / CT1+EP101 / CT1<2.5, wherein CT1 is the center thickness of the first lens on the optical axis, T12 is the air interval between the first lens and the second lens on the optical axis, and EP101 is the interval between the front end face of the first lens barrel and the first spacing element. By satisfying this conditional formula, the uniformity of the lens of the first lens can be effectively guaranteed by reasonably setting the center thickness of the first lens on the optical axis and the interval between the front end face of the first lens barrel and the first spacing element, and the small size of the first lens group can be guaranteed by reasonably setting the positions of the first lens and the second lens.

[0069] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 5.0<T78 / CT7+EP307 / CT7<6.0, wherein CT7 is the center thickness of the seventh lens on the optical axis, T78 is the air interval between the seventh lens and the eighth lens on the optical axis, and EP307 is the interval between the front end surface of the third lens barrel and the seventh spacing element. By satisfying this conditional formula and controlling the ratio within this range, the optical power of the seventh lens and the eighth lens in the optical system can be effectively distributed, which plays a role in balancing the aberration of the optical system, and can also effectively constrain the position distribution and thickness balance of the lenses between the third lens and the seventh lens.

[0070] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 2.0<L10 / (CT1+CT2)<3.0, wherein L10 is the maximum height of the first lens barrel, CT1 is the center thickness of the first lens on the optical axis, and CT2 is the center thickness of the second lens on the optical axis. By satisfying this conditional formula, the positions of the first lens and the second lens in the first lens group can be effectively controlled. In addition, by restricting the maximum height of the first lens barrel, the miniaturization of the first lens group can be ensured.

[0071] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: -6.0<R8*CP3 / f4*CP4<-1.0, wherein f4 is the effective focal length of the fourth lens, R8 is the radius of curvature of the image side of the fourth lens, CP3 is the maximum thickness of the third spacing element, and CP4 is the maximum thickness of the fourth spacing element. By satisfying this conditional formula, the field curvature sensitivity of the second lens group can be effectively reduced by reasonably setting the effective focal length of the fourth lens, and the refraction angle of the light can be adjusted by the radius of curvature of the image side of the fourth lens; at the same time, by controlling the maximum thickness of the spacing element, the stray light generated by the refraction of the light in the structure can be reduced while improving the assembly stability, thereby improving the imaging quality.

[0072] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 2.7<D8m / DT91+D8m / R17<3.4, wherein D8m is the outer diameter of the image side surface of the eighth spacing element, R17 is the radius of curvature of the object side surface of the ninth lens, and DT91 is the maximum effective radius of the object side surface of the ninth lens. By satisfying this conditional formula, by reasonably setting the radius of curvature of the object side surface of the ninth lens, the refraction angle of the system light can be adjusted, which helps to improve the illumination of the edge field of view and improve the sensitivity of the system; at the same time, by constraining the maximum effective radius of the object side surface of the ninth lens, the stray light caused by light other than the effective light can be effectively reduced, thereby improving the imaging quality.

[0073] It should be understood that the present application does not specifically limit the number of spacer elements, and any number of spacer elements may be included between any two lenses, and the entire optical camera lens may also include any number of spacer elements. The spacer element helps the optical camera lens intercept excess refractive and reflective light paths and reduce stray light and ghosting. Adding auxiliary support between the spacer element and the lens barrel is helpful to improve the problems of poor assembly stability and low performance yield caused by large step differences between lenses.

[0074] According to a second aspect of the present application, an optical camera lens is also provided, which includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which can be arranged in sequence from the object side to the image side. The first lens group is located in the first lens barrel and includes the first lens and the second lens; the second lens group is located in the second lens barrel and includes the third lens, the fourth lens, the fifth lens, and the sixth lens; the third lens group is located in the third lens barrel and includes the seventh lens, the eighth lens, and the ninth lens.

[0075] The optical camera lens further includes at least one spacer element, which may include a first spacer element located between the first lens and the second lens and directly in contact with the image side of the first lens. Exemplarily, the first spacer element may abut against a non-optical region of the image side of the first lens.

[0076] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 16.5<f1 / R1+f1 / D1s<20.0, wherein f1 is the effective focal length of the first lens, R1 is the radius of curvature of the object side of the first lens, and D1s is the outer diameter of the object side of the first spacing element. By controlling the ratio of the conditional formula within this range, the refraction angle of the system light beam in the first lens can be effectively controlled, the size of the rear end of the lens can be reduced, and the chromatic aberration of the lens can be balanced under the premise of ensuring the illumination of the edge field of view. By constraining the outer diameter of the object side of the first spacing element by the ratio range, the assembly stability can be ensured while controlling the outer diameter.

[0077] According to a third aspect of the present application, an optical camera lens is also provided, which includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which can be arranged in sequence from the object side to the image side. The first lens group is located in the first lens barrel and includes the first lens and the second lens; the second lens group is located in the second lens barrel and includes the third lens, the fourth lens, the fifth lens, and the sixth lens; the third lens group is located in the third lens barrel and includes the seventh lens, the eighth lens, and the ninth lens.

[0078] The optical camera lens further includes at least one spacer element, which may include a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, a fourth spacer element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens, and a fifth spacer element located between the fifth lens and the sixth lens and in direct contact with the image side of the fifth lens.

[0079] In an exemplary embodiment, the optical camera lens according to the present application may satisfy the following conditional formula: 7.0<T56 / T45+CP5 / EP45<8.5, wherein T45 is the air spacing between the fourth lens and the fifth lens on the optical axis, T56 is the air spacing between the fifth lens and the sixth lens on the optical axis, CP5 is the maximum thickness of the fifth spacing element, and EP45 is the spacing between the fourth spacing element and the fifth spacing element. When this conditional formula is satisfied, the field curvature sensitivity of the second lens group can be effectively reduced by reasonably setting the air spacing between the fourth lens, the fifth lens, and the sixth lens; at the same time, by constraining the maximum thickness of the fifth spacing element, the assembly stability can be effectively guaranteed, thereby improving the stability of the yield.

[0080] The fourth aspect of the present application provides such an optical camera lens, which includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which can be arranged in order from the object side to the image side. The first lens group is located in the first lens barrel and includes the first lens and the second lens; the second lens group is located in the second lens barrel and includes the third lens, the fourth lens, the fifth lens, and the sixth lens; the third lens group is located in the third lens barrel and includes the seventh lens, the eighth lens, and the ninth lens.

[0081] The optical camera lens also includes at least one spacer element, which may include a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and a fourth spacer element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens.

[0082] In an exemplary embodiment, the optical camera lens according to the present application can satisfy the following conditional formula: -17.0<R9*D3m / (R10*D4s)<-13.0, wherein R9 is the radius of curvature of the object side surface of the fifth lens, R10 is the radius of curvature of the image side surface of the fifth lens, D3m is the outer diameter of the image side surface of the third spacing element, and D4s is the outer diameter of the object side surface of the fourth spacing element. By satisfying this conditional formula, the refraction angle of the system light can be controlled by controlling the radius of curvature of the object side surface and the radius of curvature of the image side surface of the fifth lens, which helps to improve the illumination of the edge field of view and improve the sensitivity of the system; in addition, by constraining the outer diameter of the image side surface of the third spacing element and the outer diameter of the object side surface of the fourth spacing element, the assembly support length can be effectively guaranteed, thereby improving the performance of the lens group in high temperature and high humidity reliability experiments.

[0083] In some embodiments, the optical camera lens according to the present application may also include a filter and / or protective glass disposed between the ninth lens and the imaging surface, which is used to filter light with different wavelengths, correct color deviation, and protect the photosensitive element located on the imaging surface.

[0084] In some embodiments, the optical camera lens according to the present application may further include an aperture disposed between the fourth lens and the fifth lens. The provision of the aperture is conducive to effectively converging the light entering the optical lens and is conducive to reducing the aperture of the lens.

[0085] According to the optical camera lens of the above embodiment of the present application, it can use multiple lenses, such as the nine lenses described above. By reasonably allocating the focal length, surface shape, center thickness of each lens, and the on-axis spacing between each lens, etc., the incident light can be effectively converged, the total optical length can be reduced, and the processability can be improved, making the optical camera lens more conducive to production and processing.

[0086] In an embodiment of the present application, at least one of the mirror surfaces of each lens in the first lens to the ninth lens is an aspherical mirror surface. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, the object side surface and the image side surface of each lens in the first lens to the ninth lens are aspherical mirror surfaces.

[0087] Embodiments 1 to 8 of the optical imaging lens applicable to the above exemplary embodiment will be further described below with reference to the accompanying drawings.

[0088] Example 1

[0089] The following reference Figure 1 An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1 The structure diagram of the optical camera lens of Example 1 corresponding to the magnification of 2X is shown.

[0090] like Figure 1 As shown, the optical camera lens includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0091] In this embodiment, the first lens group includes a first lens E1 and a second lens E2 located in the first lens barrel P10; the second lens group includes a third lens E3, a fourth lens E4, an aperture STO, a fifth lens E5 and a sixth lens E6 located in the second lens barrel P20; the third lens group includes a seventh lens E7, an eighth lens E8 and a ninth lens E9 located in the third lens barrel P30.

[0092] In this embodiment, the optical camera lens further includes at least one spacer element, wherein the at least one spacer element includes: a first spacer element P1, a third spacer element P3, a fourth spacer element P4, a fifth spacer element P5, a seventh spacer element P7 and an eighth spacer element P8. The spacer element can block stray light in the imaging process from entering the next lens, and at the same time, the lens and the lens barrel can be better supported, thereby enhancing the structural stability of the optical camera lens.

[0093] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has positive focal power, and its object side surface S15 is convex, and its image side surface S16 is convex. The ninth lens E9 has negative refractive power, and its object-side surface S17 is concave, and its image-side surface S18 is concave. Light from the object passes through the surfaces S1 to S18 in sequence and is finally imaged on the imaging surface S19.

[0094] Table 1 shows basic parameters of the optical camera lens of Example 1, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0095]

[0096]

[0097] Table 1

[0098] In Example 1, the object side surface and the image side surface of any lens among the first lens E1 to the ninth lens E9 are both aspherical surfaces, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0099]

[0100] Among them, x is the distance vector height from the vertex of the aspherical surface when the aspherical surface is at a height of h along the optical axis; c is the paraxial curvature of the aspherical surface, c = 1 / R (that is, 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 aspherical surface.

[0101] Tables 2-1 and 2-2 below 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, 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 -8.2823E-03 8.8847E-04 4.8336E-05 -1.0200E-04 5.0570E-06 1.1928E-05 -2.3221E-06 S2 -1.0014E-02 1.1585E-04 3.2333E-04 -1.3537E-04 4.6080E-05 1.1451E-05 -6.3069E-06 S3 -4.1826E-04 -3.3169E-03 1.0782E-03 -1.9233E-04 8.7862E-05 -3.1591E-05 1.7435E-06 S4 1.8502E-03 -2.2356E-03 6.8161E-04 -1.4644E-04 3.7344E-05 -2.6491E-05 5.0945E-06 S5 2.0826E-03 -5.6196E-04 2.5191E-04 -1.3164E-04 -6.7473E-05 -1.2705E-05 -4.1419E-06 S6 5.0308E-02 -2.1671E-03 7.9917E-04 -5.3378E-04 1.2156E-04 -5.6479E-05 1.0472E-05 S7 -3.3606E-02 -1.1576E-03 -1.9099E-04 -3.5897E-04 1.8260E-04 -5.6572E-05 -3.2428E-06 S8 1.9600E-02 -1.3414E-03 -2.3606E-04 1.1837E-04 4.0280E-05 -5.0460E-05 3.8878E-06 S9 -1.5796E-02 -4.4429E-04 5.4816E-04 -4.6449E-05 2.2881E-05 -2.5816E-05 4.9876E-06 S10 1.8280E-02 3.3512E-03 7.5044E-04 -2.4377E-06 5.8672E-06 -5.6950E-06 8.3645E-08 S11 -1.7736E-02 3.8030E-03 1.8325E-03 4.5226E-04 1.0930E-04 2.3019E-05 5.5442E-06 S12 -2.1392E-02 1.3696E-03 1.8268E-03 5.4144E-04 1.5396E-04 3.9821E-05 1.1146E-05 S13 -3.9070E-02 1.2683E-02 -3.4553E-03 3.3601E-04 2.4035E-05 1.1721E-04 -5.3951E-05 S14 -9.3707E-02 2.1536E-02 -3.0920E-03 -1.3248E-04 -2.2615E-05 2.0762E-04 -6.1173E-05 S15 -1.1348E-01 1.9712E-03 5.1055E-03 -8.4394E-04 -4.3777E-04 2.2311E-05 4.6114E-05 S16 -1.2808E-01 -1.7038E-02 3.1667E-03 2.9088E-04 -5.4212E-04 -1.8526E-04 4.2722E-05 S17 -1.2728E+00 1.5292E-01 -4.2189E-02 1.1204E-02 -3.2634E-03 4.0098E-04 -1.7524E-04 S18 -2.0674E+00 2.3487E-01 -8.1734E-02 2.1447E-02 -6.3963E-03 2.3987E-03 -1.1553E-03

[0103] Table 2-1

[0104]

[0105]

[0106] Table 2-2

[0107] Table 3 shows the parameters and zoom data of the optical camera lens of this embodiment corresponding to different magnifications.

[0108] Parameters / Magnification 2X 3X 6X Semi-FOV(°) 18.3294 13.1842 9.4053 f / EPD 1.9811 2.3499 2.6593 f(mm) 16.0000 19.5762 23.9007 ImgH(mm) 5.4011 4.6317 3.9987 T1(mm) 10.0743 7.0743 0.1242 T2(mm) 3.5000 1.5000 0.5000 T3(mm) 1.1119 4.3536 6.8551

[0109] Table 3

[0110] Figure 3A The axial chromatic aberration curve of the optical camera lens of Example 1 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Figure 3B The astigmatism curve of the optical imaging lens of Example 1 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 3C The distortion curve of the optical camera lens of Example 1 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Figure 3D The chromatic aberration curve of the optical camera lens of Example 1 is shown, which indicates the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 3A to FIG. 3D It can be seen that the optical camera lens provided in Example 1 can achieve good imaging quality.

[0111] Example 2

[0112] The following reference Figure 2 An optical imaging lens according to Embodiment 2 of the present application is described. Figure 2 The structure diagram of the optical camera lens of Example 2 corresponding to the magnification of 2X is shown. In this embodiment, for the sake of brevity, some descriptions similar to those of Example 1 will be omitted.

[0113] like Figure 2 As shown, the optical camera lens includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0114] The parameters such as the curvature radius, center thickness, etc. of each lens of the optical camera lens of this embodiment and embodiment 1, as well as the spacing distance between lenses and high-order image coefficients are the same, as shown in Table 1, Table 2-1, Table 2-2 and Table 3. In addition, the optical camera lens of this embodiment and embodiment 1 also have the same number of lens barrels and spacing elements. The only difference is that the actual parameters of the lens barrel and each spacing element are different. For example, at least one of the parameters such as the lens barrel size, the thickness of the spacing element, the inner diameter of the spacing element, the outer diameter of the spacing element, and the spacing distance between the spacing elements is different. In other words, the main structure for imaging is the same, while the auxiliary structure for imaging is different. Therefore, the imaging quality of the optical camera lens of embodiment 2 of the present application is as follows: FIG. 3A to FIG. 3D shown.

[0115] Example 3

[0116] The following reference Figure 4 An optical imaging lens according to Embodiment 3 of the present application is described. Figure 4 A schematic diagram of the structure of the optical camera lens of Example 3 corresponding to a magnification of 2X is shown.

[0117] like Figure 4 As shown, the optical camera lens includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0118] In this embodiment, the first lens group includes a first lens E1 and a second lens E2 located in the first lens barrel P10; the second lens group includes a third lens E3, a fourth lens E4, an aperture STO, a fifth lens E5 and a sixth lens E6 located in the second lens barrel P20; the third lens group includes a seventh lens E7, an eighth lens E8 and a ninth lens E9 located in the third lens barrel P30.

[0119] In this embodiment, the optical camera lens further includes at least one spacer element, wherein the at least one spacer element includes: a first spacer element P1, a third spacer element P3, a fourth spacer element P4, a fifth spacer element P5, a seventh spacer element P7 and an eighth spacer element P8.

[0120] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has positive focal power, and its object side surface S15 is convex, and its image side surface S16 is convex. The ninth lens E9 has negative refractive power, and its object-side surface S17 is convex, and its image-side surface S18 is concave. Light from the object passes through the surfaces S1 to S18 in sequence and is finally imaged on the imaging surface S19.

[0121] Table 4 shows the basic parameters of the optical camera lens of Example 3, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0122]

[0123]

[0124] Table 4

[0125] In this embodiment, the object side surface and the image side surface of any lens from the first lens E1 to the ninth lens E9 are aspherical surfaces, and the surface shape of each aspherical lens can be defined by the formula (1) given in the above embodiment 1.

[0126] Tables 5-1 and 5-2 below 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, A62, A63, A70, A71, 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 -1.0085E-02 1.2075E-03 -3.4693E-05 -8.7601E-05 -3.9880E-06 1.9819E-05 -1.7987E-06 S2 -1.0341E-02 2.5802E-04 3.0092E-04 -1.3023E-04 4.0819E-05 1.7979E-05 -6.3395E-06 S3 8.8539E-04 -3.6820E-03 1.2167E-03 -2.0793E-04 9.0301E-05 -4.5051E-05 4.0454E-06 S4 1.4486E-03 -2.3574E-03 7.4245E-04 -1.4949E-04 3.4293E-05 -3.7529E-05 8.5945E-06 S5 6.9072E-04 -3.2718E-04 2.0884E-04 -9.6234E-05 -5.6077E-05 -9.7917E-06 -3.3295E-06 S6 4.7395E-02 -1.6955E-03 6.8456E-04 -4.7769E-04 1.1510E-04 -5.1871E-05 8.3722E-06 S7 -3.1767E-02 -1.2981E-03 -9.8243E-05 -3.5481E-04 1.7538E-04 -4.9186E-05 -3.3828E-06 S8 2.0012E-02 -1.7377E-03 -5.7613E-05 5.9593E-05 5.1023E-05 -4.3886E-05 2.7030E-06 S9 -1.5722E-02 -4.0685E-04 5.0670E-04 -4.6941E-05 2.2927E-05 -2.2101E-05 3.8441E-06 S10 1.5692E-02 3.3023E-03 6.6868E-04 9.8737E-06 5.2706E-06 -4.7584E-06 -9.1065E-08 S11 -1.7617E-02 3.7500E-03 1.7174E-03 4.2136E-04 9.7167E-05 1.8908E-05 4.5501E-06 S12 -2.3112E-02 1.3079E-03 1.7596E-03 5.2512E-04 1.4537E-04 3.6112E-05 9.9073E-06 S13 -4.2575E-02 1.2537E-02 -3.2179E-03 1.7559E-04 8.6084E-05 1.0806E-04 -5.1133E-05 S14 -9.1567E-02 2.0670E-02 -2.5512E-03 -4.2624E-04 5.0236E-05 1.9476E-04 -5.5421E-05 S15 -9.4597E-02 -2.1393E-03 5.7844E-03 -9.2474E-04 -3.2007E-04 -4.1773E-06 4.1965E-05 S16 -1.0853E-01 -1.6095E-02 2.3009E-03 6.6999E-04 -4.4206E-04 -1.8127E-04 1.9913E-05 S17 -1.4189E+00 1.7690E-01 -4.6323E-02 1.1826E-02 -3.2475E-03 3.0912E-04 -1.9779E-04 S18 -2.5374E+00 2.4580E-01 -9.6883E-02 2.2915E-02 -7.0368E-03 2.4756E-03 -1.3248E-03

[0128] Table 5-1

[0129]

[0130]

[0131] Table 5-2

[0132] Table 6 shows the parameters and zoom data of the optical camera lens of this embodiment corresponding to different magnifications.

[0133] Parameters / Magnification 2X 3X 6X Semi-FOV(°) 18.3294 13.1842 9.4053 f / EPD 1.9811 2.3340 2.6174 f(mm) 15.9999 19.4122 23.3155 ImgH(mm) 5.4000 4.5982 3.9016 T1(mm) 10.1511 7.1511 0.5000 T2(mm) 3.5000 1.5000 0.5000 T3(mm) 1.1850 4.3563 6.7159

[0134] Table 6

[0135] Fig. 6A The axial chromatic aberration curve of the optical camera lens of Example 3 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Figure 6B The astigmatism curve of the optical imaging lens of Example 3 is shown, which indicates the meridional field curvature and the sagittal field curvature. Figure 6C The distortion curve of the optical camera lens of Example 3 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.6D The magnification chromatic aberration curve of the optical camera lens of Example 3 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 6A to FIG. 6D It can be seen that the optical camera lens provided in Example 3 can achieve good imaging quality.

[0136] Example 4

[0137] The following reference Figure 5 An optical imaging lens according to Embodiment 4 of the present application is described. Figure 5 The structure diagram of the optical camera lens of Example 4 corresponding to the magnification of 2X is shown. In this embodiment, for the sake of brevity, some descriptions similar to those of Example 3 are omitted.

[0138] like Figure 5 As shown, the optical camera lens includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0139] The parameters such as the radius of curvature, center thickness, etc. of each lens of the optical camera lens of this embodiment and embodiment 3, as well as the spacing distance between lenses and high-order image coefficients are the same, as shown in Table 4, Table 5-1, Table 5-2 and Table 6. In addition, the optical camera lens of this embodiment and embodiment 3 also have the same number of lens barrels and spacing elements. The only difference is that the actual parameters of the lens barrel and each spacing element are different. For example, at least one of the parameters such as the size of the lens barrel, the thickness of the spacing element, the inner diameter of the spacing element, the outer diameter of the spacing element, and the spacing distance between the spacing elements is different. In other words, the main structure for imaging is the same, while the auxiliary structure for imaging is different. Therefore, the imaging quality of the optical camera lens of embodiment 4 of the present application is as follows. FIG. 6A to FIG. 6D shown.

[0140] Example 5

[0141] The following reference Figure 7 An optical imaging lens according to Embodiment 5 of the present application is described. Figure 7 A schematic diagram of the structure of the optical camera lens of Example 5 corresponding to a magnification of 2X is shown.

[0142] like Figure 7 As shown, the optical camera lens of this embodiment includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0143] In this embodiment, the first lens group includes a first lens E1 and a second lens E2 located in the first lens barrel P10; the second lens group includes a third lens E3, a fourth lens E4, an aperture STO, a fifth lens E5 and a sixth lens E6 located in the second lens barrel P20; the third lens group includes a seventh lens E7, an eighth lens E8 and a ninth lens E9 located in the third lens barrel P30.

[0144] In this embodiment, the optical camera lens further includes at least one spacer element, wherein the at least one spacer element includes: a first spacer element P1, a third spacer element P3, a fourth spacer element P4, a fifth spacer element P5, a seventh spacer element P7 and an eighth spacer element P8.

[0145] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has positive focal power, and its object side surface S15 is convex, and its image side surface S16 is convex. The ninth lens E9 has negative refractive power, and its object-side surface S17 is concave, and its image-side surface S18 is concave. Light from the object passes through the surfaces S1 to S18 in sequence and is finally imaged on the imaging surface S19.

[0146] Table 7 shows the basic parameters of the optical camera lens of Example 5, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0147]

[0148]

[0149] Table 7

[0150] In this embodiment, the object side surface and the image side surface of any lens from the first lens E1 to the ninth lens E9 are aspherical surfaces, and the surface shape of each aspherical lens can be defined by the formula (1) given in the above embodiment 1.

[0151] Tables 8-1 and 8-2 below 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, 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0152] Face number A4 A6 A8 A10 A12 A14 A16 S1 -7.1940E-03 7.2738E-04 7.8638E-05 -8.7103E-05 3.2803E-06 9.3110E-06 -1.5438E-06 S2 -1.4994E-02 1.2260E-03 5.4731E-04 -2.8582E-04 -1.4413E-05 -1.4986E-04 -5.9574E-05 S3 -5.4754E-03 -4.1236E-03 1.8084E-03 -8.0446E-04 -1.2250E-04 -1.7490E-04 1.6507E-05 S4 -5.1423E-04 -3.2384E-03 9.2958E-04 -5.0616E-04 -1.6826E-06 -2.8710E-05 4.1071E-05 S5 1.9250E-03 -7.2015E-04 1.7025E-04 -2.4052E-04 -1.1557E-04 -2.2555E-05 -5.9549E-06 S6 5.7254E-02 -2.6562E-03 7.2068E-04 -6.8467E-04 1.2525E-04 -7.0429E-05 1.6705E-05 S7 -3.8441E-02 -1.5525E-03 -4.0501E-04 -3.9520E-04 1.9301E-04 -8.7144E-05 -6.5258E-06 S8 2.0544E-02 -1.3254E-03 -3.1794E-04 1.5810E-04 1.5443E-05 -6.2795E-05 5.3481E-06 S9 -1.6312E-02 -4.0332E-04 5.8887E-04 -4.0355E-05 1.2417E-05 -2.8313E-05 6.1369E-06 S10 2.0213E-02 3.6556E-03 8.4120E-04 -3.7835E-07 2.8273E-06 -6.4901E-06 1.2330E-07 S11 -1.7762E-02 3.6947E-03 1.8389E-03 4.6386E-04 1.1225E-04 2.4206E-05 5.8701E-06 S12 -1.9897E-02 1.2234E-03 1.7718E-03 5.3054E-04 1.5016E-04 3.9037E-05 1.0939E-05 S13 -3.5630E-02 1.2470E-02 -3.4812E-03 3.5083E-04 3.4576E-05 1.1540E-04 -5.8033E-05 S14 -9.2969E-02 2.1022E-02 -2.9598E-03 -1.3507E-04 -4.2349E-05 2.0611E-04 -5.8063E-05 S15 -1.1894E-01 3.2692E-03 5.0593E-03 -8.9055E-04 -5.2414E-04 5.4229E-05 5.1276E-05 S16 -1.4060E-01 -1.5074E-02 2.3459E-03 5.5311E-04 -7.3517E-04 -1.5422E-04 3.1781E-05 S17 -1.1931E+00 1.3801E-01 -3.7069E-02 9.6746E-03 -2.5891E-03 3.6152E-04 -1.2186E-04 S18 -1.9425E+00 2.1779E-01 -7.3154E-02 1.8527E-02 -5.2641E-03 2.1797E-03 -8.3069E-04

[0153] Table 8-1

[0154]

[0155]

[0156] Table 8-2

[0157] Table 9 shows the parameters and zoom data of the optical camera lens of this embodiment corresponding to different magnifications.

[0158] Parameters / Magnification 2X 3X 6X Semi-FOV(°) 18.3294 13.1842 9.4053 f / EPD 1.9811 2.3560 2.6662 f(mm) 16.0000 19.6442 23.8697 ImgH(mm) 5.4006 4.6471 3.9913 T1(mm) 9.8463 6.8463 0.5000 T2(mm) 3.5000 1.5000 0.5000 T3(mm) 1.1210 4.3977 6.9077

[0159] Table 9

[0160] Fig. 9A The axial chromatic aberration curve of the optical camera lens of Example 5 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Fig. 9B The astigmatism curve of the optical imaging lens of Example 5 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 9C The distortion curve of the optical camera lens of Example 5 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.9D The magnification chromatic aberration curve of the optical camera lens of Example 5 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. 9A to 9DIt can be seen that the optical camera lens provided in Example 5 can achieve good imaging quality.

[0161] Example 6

[0162] The following reference Figure 8 An optical imaging lens according to Embodiment 6 of the present application is described. Figure 8 The structure diagram of the optical camera lens of Example 6 corresponding to the magnification of 2X is shown. In this embodiment, for the sake of brevity, some descriptions similar to those of Example 5 will be omitted.

[0163] like Figure 8 As shown, the optical camera lens includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0164] The parameters such as the radius of curvature, center thickness, etc. of each lens of the optical camera lens of this embodiment and embodiment 5, as well as the spacing distance between lenses and high-order image coefficients are the same, as shown in Table 7, Table 8-1, Table 8-2 and Table 9. In addition, the optical camera lens of this embodiment and embodiment 5 include the same number of lens barrels and spacing elements, and the only difference is that the actual parameters of the lens barrel and each spacing element are different, for example, at least one of the parameters such as the size of the lens barrel, the thickness of the spacing element, the inner diameter of the spacing element, the outer diameter of the spacing element, and the spacing distance between the spacing elements is different. In other words, the main structure for imaging is the same, while the auxiliary structure for imaging is different. Therefore, the imaging quality of the optical camera lens of embodiment 6 of the present application is as follows: 9A to 9D shown.

[0165] Example 7

[0166] The following reference Fig.10 An optical imaging lens according to Embodiment 7 of the present application is described. Fig.10 A schematic diagram of the structure of the optical camera lens of Example 7 corresponding to a magnification of 2X is shown.

[0167] like Fig.10 As shown, the optical camera lens includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0168] In this embodiment, the first lens group includes a first lens E1 and a second lens E2 located in the first lens barrel P10; the second lens group includes a third lens E3, a fourth lens E4, an aperture STO, a fifth lens E5 and a sixth lens E6 located in the second lens barrel P20; the third lens group includes a seventh lens E7, an eighth lens E8 and a ninth lens E9 located in the third lens barrel P30.

[0169] In this embodiment, the optical camera lens further includes at least one spacer element, wherein the at least one spacer element includes: a first spacer element P1, a third spacer element P3, a fourth spacer element P4, a fifth spacer element P5, a seventh spacer element P7 and an eighth spacer element P8.

[0170] The first lens E1 has positive focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens E3 has positive focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative focal power, and its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has negative focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has positive focal power, and its object side surface S15 is convex, and its image side surface S16 is convex. The ninth lens E9 has negative refractive power, and its object-side surface S17 is convex, and its image-side surface S18 is concave. Light from the object passes through the surfaces S1 to S18 in sequence and is finally imaged on the imaging surface S19.

[0171] Table 10 shows the basic parameters of the optical camera lens of Example 7, wherein the units of the radius of curvature and thickness / distance are all millimeters (mm).

[0172]

[0173]

[0174] Table 10

[0175] In this embodiment, the object side surface and the image side surface of any lens from the first lens E1 to the ninth lens E9 are aspherical surfaces, and the surface shape of each aspherical lens can be defined by the formula (1) given in the above embodiment 1.

[0176] The following Tables 11-1 and 11-2 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, A 10 , A 12 , A14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0177] Face number A4 A6 A8 A10 A12 A14 A16 S1 -8.9286E-03 1.0614E-03 8.0786E-07 -7.9969E-05 -6.9351E-06 1.4553E-05 -8.0448E-07 S2 -9.4651E-03 1.4554E-04 3.2302E-04 -1.3459E-04 4.0914E-05 1.4013E-05 -4.8911E-06 S3 1.0003E-03 -3.6206E-03 1.1617E-03 -2.0634E-04 9.3988E-05 -4.2015E-05 3.4355E-06 S4 1.6124E-03 -2.2332E-03 6.7489E-04 -1.2940E-04 4.1536E-05 -3.2470E-05 6.0230E-06 S5 8.8452E-04 -3.9969E-04 2.0258E-04 -1.2744E-04 -7.0442E-05 -1.2938E-05 -3.8564E-06 S6 4.9817E-02 -1.9027E-03 6.9919E-04 -5.1888E-04 1.1743E-04 -5.6036E-05 9.9067E-06 S7 -3.3493E-02 -1.3628E-03 -1.6167E-04 -3.6599E-04 1.8287E-04 -5.7209E-05 -4.1840E-06 S8 2.0527E-02 -1.6871E-03 -1.0997E-04 8.2659E-05 4.3843E-05 -4.9174E-05 3.2654E-06 S9 -1.6069E-02 -3.9069E-04 5.3556E-04 -4.3179E-05 1.8796E-05 -2.4220E-05 4.7416E-06 S10 1.7160E-02 3.5630E-03 7.3354E-04 1.1413E-05 3.9986E-06 -5.4848E-06 -7.4752E-08 S11 -1.7581E-02 3.8042E-03 1.7928E-03 4.4953E-04 1.0559E-04 2.0863E-05 4.8478E-06 S12 -2.2169E-02 1.2709E-03 1.7674E-03 5.3196E-04 1.4839E-04 3.6952E-05 1.0132E-05 S13 -4.1288E-02 1.2550E-02 -3.2866E-03 2.2226E-04 6.5902E-05 1.1424E-04 -5.3392E-05 S14 -9.1101E-02 2.0475E-02 -2.5942E-03 -3.4634E-04 7.2431E-06 2.0273E-04 -5.5892E-05 S15 -9.9923E-02 -1.1273E-03 5.8977E-03 -1.0333E-03 -3.7713E-04 2.3217E-05 4.6086E-05 S16 -1.1306E-01 -1.6779E-02 2.5615E-03 6.0155E-04 -5.2217E-04 -1.8927E-04 1.6775E-05 S17 -1.3584E+00 1.6701E-01 -4.3168E-02 1.1020E-02 -2.8491E-03 3.2060E-04 -1.5312E-04 S18 -2.4247E+00 2.4251E-01 -9.1159E-02 2.1926E-02 -6.4702E-03 2.4852E-03 -1.0801E-03

[0178] Table 11-1

[0179] Face number A18 A20 A22 A24 A26 A28 A30 S1 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S2 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S3 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S8 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S9 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S10 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S11 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S12 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S13 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S14 -9.3890E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S15 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S16 4.5434E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S17 -2.4044E-05 -1.1345E-05 -3.6073E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S18 -2.2906E-04 -2.2096E-04 -3.6283E-07 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00

[0180] Table 11-2

[0181] Table 12 shows the parameters and zoom data of the optical camera lens of Example 7 corresponding to different magnifications.

[0182] Parameters / Magnification 2X 3X 6X Semi-FOV(°) 18.3294 13.1842 9.4053 f / EPD 1.9811 2.3370 2.6229 f(mm) 16.0000 19.6442 23.8697 ImgH(mm) 5.4003 4.6052 3.9086 T1(mm) 10.0166 7.0166 0.5000 T2(mm) 3.5000 1.5000 0.5000 T3(mm) 1.1780 4.3624 6.7351

[0183] Table 12

[0184] Fig. 12A The axial chromatic aberration curve of the optical camera lens of Example 7 is shown, which indicates the deviation of the focusing point of light of different wavelengths after passing through the lens. Fig. 12B The astigmatism curve of the optical imaging lens of Example 7 is shown, which indicates the meridional field curvature and the sagittal field curvature. Fig. 12C The distortion curve of the optical camera lens of Example 7 is shown, which represents the distortion magnitude values ​​corresponding to different image heights. Fig.12D The magnification chromatic aberration curve of the optical camera lens of Example 7 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. FIG. 12A to FIG. 12D It can be seen that the optical camera lens provided in Example 7 can achieve good imaging quality.

[0185] Example 8

[0186] The following reference Fig.11 An optical imaging lens according to Example 8 of the present application is described. Fig.11 The structure diagram of the optical camera lens of Example 8 corresponding to the magnification of 2X is shown. In this embodiment, for the sake of brevity, some descriptions similar to those of Example 7 will be omitted.

[0187] like Fig.11 As shown, the optical camera lens includes: a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with negative optical power, which are arranged in sequence from the object side to the image side along the optical axis.

[0188] The parameters such as the radius of curvature, center thickness, etc. of each lens of the optical camera lens of this embodiment and embodiment 7, as well as the spacing distance between lenses and high-order image coefficients are the same, as shown in Table 10, Table 11-1, Table 11-2 and Table 12. In addition, the optical camera lens of this embodiment and embodiment 7 also have the same number of lens barrels and spacing elements. The only difference is that the actual parameters of the lens barrel and each spacing element are different. For example, at least one of the parameters such as the size of the lens barrel, the thickness of the spacing element, the inner diameter of the spacing element, the outer diameter of the spacing element, and the spacing distance between the spacing elements is different. In other words, the main structure for imaging is the same, while the auxiliary structure for imaging is different. Therefore, the imaging quality of the optical camera lens of embodiment 8 of the present application is as follows. FIG. 12A to FIG. 12D shown.

[0189] Table 13 below shows some parameters of the optical camera lenses of Examples 1 to 8, such as the effective focal length of each lens, the combined focal length of each lens group, the maximum effective radius DT91 of the object side of the ninth lens, etc. The units of the focal length value or the effective radius value are all millimeters (mm).

[0190] Parameter value / example 1 2 3 4 5 6 7 8 f1 172.93 172.93 184.39 184.39 168.51 168.51 180.64 180.64 f2 -56.31 -56.31 -59.86 -59.86 -54.74 -54.74 -58.98 -58.98 f3 16.04 16.04 16.18 16.18 15.99 15.99 16.09 16.09 f4 18.10 18.10 18.07 18.07 18.07 18.07 18.09 18.09 f5 -9.13 -9.13 -9.04 -9.04 -9.18 -9.18 -9.06 -9.06 f6 14.36 14.36 14.32 14.32 14.35 14.35 14.35 14.35 f7 -19.87 -19.87 -20.87 -20.87 -19.56 -19.56 -20.66 -20.66 f8 15.72 15.72 16.00 16.00 15.70 15.70 15.96 15.96 f9 -12.75 -12.75 -12.82 -12.82 -12.79 -12.79 -12.82 -12.82 DT91 4.52 4.52 4.50 4.50 4.50 4.50 4.50 4.50 f12 -85.26 -85.26 -90.21 -90.21 -83.03 -83.03 -89.16 -89.16 f3456 13.97 13.97 14.06 14.06 13.89 13.89 14.03 14.03 f789 -15.64 -15.64 -16.06 -16.06 -15.51 -15.51 -15.97 -15.97

[0191] Table 13

[0192] Table 14 below shows some basic parameters of the lens barrel and the spacer element of the optical camera lens of Examples 1 to 8, such as the height of the lens barrel, the maximum thickness of the spacer element, the interval between the spacer elements, etc. The units of the basic parameters listed in Table 14 are all millimeters (mm).

[0193]

[0194]

[0195] Table 14 In summary, in Examples 1 to 8, the optical camera lenses respectively meet the conditions in the following Table 15.

[0196] Conditional / Example 1 2 3 4 5 6 7 8 T12 / CT1+EP101 / CT1 2.07 2.13 1.80 1.73 2.30 2.26 1.77 1.82 (CT3+T34) / EP203 1.95 1.99 2.06 2.15 1.99 2.13 1.95 1.85 T78 / CT7+EP307 / CT7 5.81 5.69 5.72 5.35 5.93 5.93 5.66 5.49 L10 / (CT1+CT2) 2.56 2.83 2.06 2.29 2.45 2.28 2.34 2.40 L20 / (CT3+CT4+CT5+CT6) 1.76 1.65 1.87 1.78 1.86 1.72 1.75 1.70 L30 / (T78+T89) 2.88 3.01 2.97 3.12 2.96 2.87 3.16 3.01 D8m / DT91+D8m / R17 2.84 2.75 3.07 3.24 3.33 3.22 3.05 3.02 f1 / R1+f1 / D1s 19.69 19.33 19.92 19.05 16.58 17.00 19.55 19.72 R3 / f2+R3 / d1m -7.59 -7.71 -7.13 -7.00 -7.11 -7.21 -7.07 -7.13 (R2*d1s) / (R4*d1m) 0.92 0.92 1.19 1.19 1.04 1.04 1.19 1.19 f3 / R4+f3 / D3s 1.68 1.62 1.69 1.62 1.47 1.51 1.69 1.70 R8*CP3 / (f4*CP4) -2.19 -1.75 -2.38 -5.94 -2.14 -2.63 -1.33 -1.89 (CT4+CT3) / EP34 2.61 2.36 2.56 2.47 2.69 2.43 2.78 3.07 R9*D3m / (R10*D4s) -14.32 -14.33 -16.55 -16.55 -13.79 -13.79 -16.02 -16.02 T56 / T45+CP5 / EP45 8.04 8.04 7.49 7.49 8.18 8.19 7.67 7.68 R15*d7m / (R16*d8s) -3.98 -4.10 -7.68 -7.69 -4.01 -4.01 -7.19 -7.19 CT8 / EP78 1.59 1.05 1.52 1.23 1.54 1.54 1.35 1.19 (f12+f789) / f3456 -7.22 -7.22 -7.56 -7.56 -7.10 -7.10 -7.50 -7.50

[0197] Table 15

[0198] Table 16 below shows a comparative analysis of the stray light effects of Samples 1, 2, and 3 of the optical camera lens. In order to meet the design requirements of the lens zoom function and balanced aberration, the rear end mechanism of the optical camera lens is prone to generate more stray light, especially the area between the seventh lens and the eighth lens, which affects the image quality. Therefore, it is necessary to optimize the structure of the optical camera lens to effectively block stray light while ensuring assembly stability, thereby improving the image quality. Fig.13A and Fig. 13B ,as well as Fig.14A and Fig. 14B As shown, through experimental comparison of the optical camera lens, it can be found that if the numerical range of the conditional formula -8.0<(f12+f789) / f3456<-7.0 and -8.0<R15*d7m / (R16*d8s)<-3.5 is exceeded, the optical performance of the optical camera lens is unqualified, for example Fig.13A Sample 2 and Fig.14A Sample 3 shown; and by satisfying the numerical range of the conditional expression, such as Fig. 13B and Fig. 14B The sample 1 shown has a better effect of eliminating stray light than the samples 2 and 3 which are outside the numerical range of the conditional expression.

[0199]

[0200] Table 16

[0201] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model 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 utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. An optical camera lens, characterized in that: Included are arranged in order from the object side to the image side along the optical axis: A first lens group having negative optical power, comprising a first lens and a second lens; a second lens group having positive refractive power, comprising a third lens, a fourth lens, a fifth lens and a sixth lens; as well as a third lens group having negative optical power, comprising a seventh lens, an eighth lens and a ninth lens; The optical camera lens further comprises at least one spacer element, The at least one spacing element includes: a seventh spacing element located between the seventh lens and the eighth lens and in direct contact with the image side of the seventh lens, and an eighth spacing element located between the eighth lens and the ninth lens and in direct contact with the image side of the eighth lens; The combined focal length f12 of the first lens and the second lens, the combined focal length f3456 of the third lens, the fourth lens, the fifth lens and the sixth lens, and the combined focal length f78 of the seventh lens and the eighth lens satisfy: -8.0<(f12+f789) / f3456<-7.0; and A curvature radius R15 of the object side surface of the eighth lens, a curvature radius R16 of the image side surface of the eighth lens, an inner diameter d7m of the image side surface of the seventh spacing element, and an inner diameter d8s of the object side surface of the eighth spacing element satisfy: -8.0<R15*d7m / (R16*d8s)<-3.

5.

2. The optical camera lens according to claim 1, wherein: The optical camera lens comprises a first lens barrel, a second lens barrel and a third lens barrel, wherein the first lens group is located in the first lens barrel, the second lens group is located in the second lens barrel, and the third lens group is located in the third lens barrel.

3. The optical camera lens according to claim 1, wherein: The at least one spacer element further comprises a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, The effective focal length f1 of the first lens, the curvature radius R1 of the object-side surface of the first lens, and the outer diameter D1s of the object-side surface of the first spacer element satisfy: 16.5<f1 / R1+f1 / D1s<20.

0.

4. The optical camera lens according to claim 1, wherein: The at least one spacer element further comprises a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, The curvature radius R2 of the image side surface of the first lens, the inner diameter d1s of the object side surface of the first spacer element, the curvature radius R4 of the image side surface of the second lens, and the inner diameter d1m of the image side surface of the first spacer element satisfy: 0.5<(R2*d1s) / (R4*d1m)<1.

5.

5. The optical camera lens according to claim 1, wherein: The at least one spacer element further comprises a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, A curvature radius R3 of the object-side surface of the second lens, an effective focal length f2 of the second lens, and an inner diameter d1m of the image-side surface of the first spacing element satisfy: -8.0<R3 / f2+R3 / d1m≤-7.

0.

6. The optical camera lens according to claim 2, wherein: The at least one spacer element further comprises a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, The center thickness CT3 of the third lens on the optical axis, the air interval T34 between the third lens and the fourth lens on the optical axis, and the interval EP203 between the front end surface of the second lens barrel and the third spacing element satisfy: 1.5<(CT3+T34) / EP203<2.

5.

7. The optical camera lens according to claim 2, wherein: The maximum height L20 of the second lens barrel, the center thickness CT3 of the third lens on the optical axis, the center thickness CT4 of the fourth lens on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis satisfy: 1.5<L20 / (CT3+CT4+CT5+CT6)<2.

0.

8. The optical camera lens according to claim 1, wherein: The at least one spacer element further comprises a third spacer element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, The effective focal length f3 of the third lens, the curvature radius R4 of the image side surface of the second lens, and the outer diameter D3s of the object side surface of the third spacing element satisfy: 1.0<f3 / R4+f3 / D3s<2.

0.

9. The optical camera lens according to claim 1, wherein: The at least one spacing element further includes a third spacing element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and a fourth spacing element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens, An air interval T34 between the third lens and the fourth lens on the optical axis, a center thickness CT3 of the third lens on the optical axis, and an interval EP34 between the third spacing element and the fourth spacing element satisfy: 2.0<(T34+CT3) / EP34<3.

1.

10. The optical camera lens according to claim 1, wherein: The at least one spacing element further includes a fourth spacing element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens, and a fifth spacing element located between the fifth lens and the sixth lens and in direct contact with the image side of the fifth lens, The air gap T45 between the fourth lens and the fifth lens on the optical axis, the air gap T56 between the fifth lens and the sixth lens on the optical axis, the maximum thickness CP5 of the fifth spacing element, and the interval EP45 between the fourth spacing element and the fifth spacing element satisfy: 7.0<T56 / T45+CP5 / EP45<8.

5.

11. The optical camera lens according to any one of claims 1 to 10, wherein: A central thickness CT8 of the eighth lens on the optical axis and an interval EP78 between the seventh spacing element and the eighth spacing element satisfy the following: 1.0<CT8 / EP78<1.

6.

12. The optical camera lens according to claim 1, wherein: The at least one spacing element further includes a third spacing element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and a fourth spacing element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens, A curvature radius R9 of the object side surface of the fifth lens, a curvature radius R10 of the image side surface of the fifth lens, an outer diameter D3m of the image side surface of the third spacing element, and an outer diameter D4s of the object side surface of the fourth spacing element satisfy: -17.0<R9*D3m / (R10*D4s)<-13.

0.

13. The optical camera lens according to claim 2, wherein: The maximum height L30 of the third lens barrel, the air interval T78 between the seventh lens and the eighth lens on the optical axis, and the air interval T89 between the eighth lens and the ninth lens on the optical axis satisfy: 2.5<L30 / (T78+T89)<3.

5.

14. The optical camera lens according to claim 2, wherein: The at least one spacer element further comprises a first spacer element located between the first lens and the second lens and in direct contact with the image side of the first lens, The air interval T12 between the first lens and the second lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, and the interval EP101 between the front end surface of the first lens barrel and the first spacing element satisfy: 1.5<T12 / CT1+EP101 / CT1<2.

5.

15. The optical camera lens according to claim 2, wherein: The center thickness CT7 of the seventh lens on the optical axis, the air interval T78 between the seventh lens and the eighth lens on the optical axis, and the interval EP307 between the front end surface of the third lens barrel and the seventh spacing element satisfy: 5.0<T78 / CT7+EP307 / CT7<6.

0.

16. The optical camera lens according to claim 2, wherein: The maximum height L10 of the first lens barrel, the center thickness CT1 of the first lens on the optical axis, and the center thickness CT2 of the second lens on the optical axis satisfy: 2.0<L10 / (CT1+CT2)<3.

0.

17. The optical camera lens according to claim 1, wherein: The at least one spacing element further includes a third spacing element located between the third lens and the fourth lens and in direct contact with the image side of the third lens, and a fourth spacing element located between the fourth lens and the fifth lens and in direct contact with the image side of the fourth lens, The effective focal length f4 of the fourth lens, the curvature radius R8 of the image side surface of the fourth lens, the maximum thickness CP3 of the third spacing element, and the maximum thickness CP4 of the fourth spacing element satisfy: -6.0<R8*CP3 / (f4*CP4)<-1.

0.

18. The optical camera lens according to any one of claims 1 to 10, wherein: The outer diameter D8m of the image side surface of the eighth spacer element, the curvature radius R17 of the object side surface of the ninth lens, and the maximum effective radius DT91 of the object side surface of the ninth lens satisfy: 2.7<D8m / DT91+D8m / R17<3.4.

Images