Optical imaging lens

Abstract

The invention discloses an optical imaging lens. The zoom lens comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with positive focal power, a fifth lens with negative focal power, a sixth lens with positive focal power and a seventh lens with positive focal power or negative focal power in sequence from an object side to an image side along an optical axis, the first lens has positive focal power or negative focal power, the eighth lens has positive focal power or negative focal power, the ninth lens has positive focal power or negative focal power, the tenth lens has positive focal power, and the eleventh lens has positive focal power or negative focal power. Wherein the positive and negative attributes of the focal power of the seventh lens and the eighth lens are opposite.

Description

Technical Field

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

[0002] With the development of optical imaging lenses, the demand for lenses in the fields of panoramic monitoring, drones, sports cameras and automotive lenses continues to increase. At the same time, people have put forward higher requirements for optical imaging lenses.

[0003] However, the following problems still exist in the existing optical imaging lenses: 1) The field of view of the optical imaging lens is small, and the target range that can be acquired is small; 2) The overall length is long and the adaptability is poor; 3) It is impossible to achieve high resolution while taking into account the effect of large target surface; 4) In order to ensure good thermal stability, the existing optical imaging lenses use too many materials with stable thermal expansion coefficients, or use too many lenses, resulting in excessively high costs and poor market competitiveness. Summary of the invention

[0004] The present application provides an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens with negative optical power, a second lens with negative optical power, a third lens with negative optical power, a fourth lens with positive optical power, a fifth lens with negative optical power, a sixth lens with positive optical power, a seventh lens with positive or negative optical power, an eighth lens with positive or negative optical power, a ninth lens with positive or negative optical power, a tenth lens with positive optical power, and an eleventh lens with positive or negative optical power; wherein the positive and negative properties of the optical power of the seventh lens and the eighth lens are opposite.

[0005] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -5.5≤f2 / f≤-1.3, wherein f2 is the effective focal length of the second lens, and f is the total effective focal length of the optical imaging lens.

[0006] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -9.8≤f3 / f≤-1.0, wherein f3 is the effective focal length of the third lens, and f is the total effective focal length of the optical imaging lens.

[0007] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.6≤f4 / f≤1.2, wherein f4 is the effective focal length of the fourth lens, and f is the total effective focal length of the optical imaging lens.

[0008] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -4.3≤f5 / f≤-1.9, wherein f5 is the effective focal length of the fifth lens, and f is the total effective focal length of the optical imaging lens.

[0009] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -3≤f5 / f6≤-1, wherein f5 is the effective focal length of the fifth lens, and f6 is the effective focal length of the sixth lens.

[0010] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -2.0≤f7 / f8≤-1.0, wherein f7 is the effective focal length of the seventh lens, and f8 is the effective focal length of the eighth lens.

[0011] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -0.4≤f10 / f11≤5.5, wherein f10 is the effective focal length of the tenth lens, and f11 is the effective focal length of the eleventh lens.

[0012] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -1.0≤f12 / f≤-0.4, wherein f12 is the combined focal length of the first lens and the second lens, and f is the total effective focal length of the optical imaging lens.

[0013] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.9≤f34 / f≤1.9, wherein f34 is the combined focal length of the third lens and the fourth lens, and f is the total effective focal length of the optical imaging lens.

[0014] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -2.3≤f345 / fa≤-0.5, wherein f345 is the combined focal length of the third lens, the fourth lens and the fifth lens, and fa is the combined focal length of the first lens to the fifth lens.

[0015] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.6≤f6 / fb≤1.0, wherein f6 is the effective focal length of the sixth lens, and fb is the combined focal length of the sixth lens to the eleventh lens.

[0016] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.5≤|R112 / f11|≤8.9, wherein R112 is the radius of curvature of the image side surface of the eleventh lens, and f11 is the effective focal length of the eleventh lens.

[0017] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -2.7≤fa / f≤-0.9, wherein fa is the combined focal length of the first lens to the fifth lens, and f is the total effective focal length of the optical imaging lens.

[0018] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 1.6≤fb / f≤2.1, wherein fb is the combined focal length of the sixth lens to the eleventh lens, and f is the total effective focal length of the optical imaging lens.

[0019] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -1.5≤fa / fb≤-0.5, wherein fa is the combined focal length of the first lens to the fifth lens, and fb is the combined focal length of the sixth lens to the eleventh lens.

[0020] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.5° / mm 2 ≤FOV / H / D≤0.8° / mm 2 , where FOV is the maximum field of view of the optical imaging lens, H is the image height corresponding to the maximum field of view of the optical imaging lens, and D is the maximum aperture of the optical imaging lens.

[0021] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 9.2mm≤TTL×f / H≤10.1mm, wherein TTL is the on-axis distance from the object side of the first lens to the imaging surface of the optical imaging lens, f is the total effective focal length of the optical imaging lens, and H is the image height corresponding to the maximum field angle of the optical imaging lens.

[0022] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.3≤BFL / f≤0.8, wherein BFL is the distance from the image side surface of the eleventh lens to the imaging surface of the optical lens on the optical axis, and f is the total effective focal length of the optical imaging lens.

[0023] According to an exemplary embodiment of the present application, the optical imaging lens satisfies at least one of the following: 5.8≤|Vd3-Vd4|≤7.6; 32.8≤|Vd7-Vd8|≤50.5; wherein Vd3 is the Abbe number of the third lens, Vd4 is the Abbe number of the fourth lens, Vd7 is the Abbe number of the seventh lens, and Vd8 is the Abbe number of the eighth lens.

[0024] According to an exemplary embodiment of the present application, the optical imaging lens satisfies at least one of the following: -5.4≤f2 / f≤-1.4; -0.95≤f12 / f≤-0.45; -3.26≤f3 / f≤-1.1; 0.7≤f4 / f≤0.9; 1.0≤f34 / f≤1.8; -4.25≤f5 / f≤-2; -2.2≤f345 / fa≤-0.5 5;-2.9≤f5 / f6≤-1.2;0.7≤f6 / fb≤0.9;-2.0≤f7 / f8≤-1.1;-0.3≤f10 / f11≤5.3;0.5 5≤|R112 / f11|≤8.8; -2.55≤fa / f≤-1; 1.7≤fb / f≤2.0; -1.4≤fa / fb≤-0.55; 0.6° / mm 2 ≤FOV / H / D≤0.7° / mm 2; 9.25mm≤TTL×f / H≤10mm; 0.4≤BFL / f≤0.6; 5.9≤|Vd3-Vd4|≤7.5; 32.9≤|Vd7-Vd8|≤50.4; wherein f is the total effective focal length of the optical imaging lens, f2 is the effective focal length of the second lens, f12 is the combined focal length of the first lens and the second lens, f3 is the effective focal length of the third lens, f4 is the effective focal length of the fourth lens, f34 is the combined focal length of the third lens and the fourth lens, f5 is the effective focal length of the fifth lens, f345 is the combined focal length of the third lens, the fourth lens and the fifth lens, fa is the combined focal length of the first lens to the fifth lens, f6 is the effective focal length of the sixth lens, and f7 is the effective focal length of the seventh lens. focal length, f8 is the effective focal length of the eighth lens, f10 is the effective focal length of the tenth lens, f11 is the effective focal length of the eleventh lens, fb is the combined focal length of the sixth lens to the eleventh lens, R112 is the curvature radius of the image side surface of the eleventh lens, FOV is the maximum field of view of the optical imaging lens, H is the image height corresponding to the maximum field of view of the optical imaging lens, D is the maximum clear aperture of the optical imaging lens, TTL is the axial distance from the object side surface of the first lens to the imaging surface of the optical imaging lens, BFL is the distance from the image side surface of the eleventh lens to the imaging surface of the optical lens on the optical axis, Vd3 is the Abbe number of the third lens, Vd4 is the Abbe number of the fourth lens, Vd7 is the Abbe number of the seventh lens, and Vd8 is the Abbe number of the eighth lens.

[0025] According to an exemplary embodiment of the present application, the object side surface of the first lens is convex and the image side surface is concave; the object side surface of the fourth lens is convex and the image side surface is convex; the object side surface of the sixth lens is convex and the image side surface is convex.

[0026] According to an exemplary embodiment of the present application, the image side surface of the second lens is concave; the object side surface of the third lens is convex, and the image side surface is concave; the object side surface of the fifth lens is concave, and the image side surface is convex; the image side surface of the ninth lens is concave; and the image side surface of the tenth lens is convex.

[0027] The optical imaging lens of the present application has at least one of the beneficial effects of a large field of view, a short total length, a high resolution, and a large target surface by reasonably setting the number of lenses and the optical focal length. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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:

[0029] Figure 1 is a schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application;

[0030] Figure 2is a schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application;

[0031] Figure 3 is a schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application;

[0032] Figure 4 is a schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application;

[0033] Figure 5 is a schematic structural diagram of an optical imaging lens according to Example 5 of the present application. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] It should also be understood that the terms "including", "having", "comprising", etc., 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 a statement such as "at least one of..." appears after a list of listed features, it modifies 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.

[0039] 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.

[0040] 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 present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] The optical imaging lens according to an exemplary embodiment of the present application may include eleven lenses having optical power in sequence from the object side to the image side along the optical axis, namely a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens and an eleventh lens.

[0042] In an exemplary embodiment, the first lens of the optical imaging lens has a negative optical power. The object side surface of the first lens is convex, and the image side surface is concave. Such an arrangement can effectively converge light with a large field angle, reduce the incident angle of light on the object side surface of the second lens, effectively avoid the subsequent optical lens from generating high-order aberrations due to excessively large incident angles, and improve the resolution of the lens.

[0043] In an exemplary embodiment, the second lens of the optical imaging lens has a negative optical power. The object side of the second lens is a convex surface or a concave surface, and the image side is a concave surface. Such a setting is conducive to controlling the trend of light and making the light transition smoothly.

[0044] In an exemplary embodiment, the second lens of the optical imaging lens is an aspherical lens. The use of an aspherical surface is beneficial for better correction of aberrations in the entire field of view and improving the resolution of the lens.

[0045] In an exemplary embodiment, the third lens of the optical imaging lens has negative optical power. The object side surface of the third lens is convex, and the image side surface is concave. The third lens of the optical imaging lens cooperates with the fourth lens having positive optical power to smoothly transmit light to the optical system behind the lens, which is conducive to better correcting the spherical aberration of the lens, improving the resolution of the lens, and reducing the tolerance sensitivity of the lens.

[0046] In an exemplary embodiment, the fourth lens of the optical imaging lens has positive power. The object side surface of the fourth lens is convex, and the image side surface is convex. The fourth lens of the optical imaging lens cooperates with the third lens having negative power, which is conducive to better correcting the spherical aberration of the lens. At the same time, it cooperates with the fifth lens behind it to effectively correct the axial chromatic aberration, and can also effectively reduce the tolerance sensitivity of the lens and improve the production yield of the lens.

[0047] In an exemplary embodiment, the third lens and the fourth lens constitute a doublet lens.

[0048] In an exemplary embodiment, the fifth lens of the optical imaging lens has negative power. The object side of the fifth lens is concave, and the image side is convex. The fifth lens is an aspherical lens. The fifth lens cooperates with the fourth lens having positive power, which is conducive to better correcting the spherical aberration of the lens. At the same time, the fifth lens cooperates with the sixth lens having positive power and a convex object side behind it, which can effectively correct the axial chromatic aberration, and at the same time can control the trend of light before and after the aperture, so that the light transitions smoothly.

[0049] In an exemplary embodiment, the sixth lens of the optical imaging lens has positive power. The object side surface of the sixth lens is convex, and the image side surface is convex. The sixth lens can be made of a material with thermal expansion stability, which helps to achieve thermal compensation of the lens, and cooperates with the fifth lens in front to correct the residual astigmatism and axial chromatic aberration of the front optical system.

[0050] In an exemplary embodiment, the seventh lens of the optical imaging lens has positive focal power or negative focal power. When the object side surface of the seventh lens is convex, the image side surface is convex or concave; when the object side surface of the seventh lens is concave, the image side surface is concave. Exemplarily, the seventh lens can be made of a material with a low refractive index and a high Abbe number. Such a setting can effectively correct the vertical axis chromatic aberration of the lens and improve the imaging quality of the lens.

[0051] In an exemplary embodiment, the eighth lens of the optical imaging lens has positive or negative power, the object side surface of the eighth lens is convex, and the image side surface is convex; or, the object side surface of the eighth lens is concave, and the image side surface is concave.

[0052] In an exemplary embodiment, the seventh lens and the eighth lens form a doublet lens with positive and negative optical powers, that is, when the seventh lens has positive optical power, the eighth lens has negative optical power; or when the seventh lens has negative optical power, the eighth lens has positive optical power. Such a setting is conducive to the smooth transmission of light, reduces the tolerance sensitivity of the lens, and can effectively improve the production yield of the lens. At the same time, it can also effectively correct the vertical axis chromatic aberration of the lens and improve the imaging quality of the lens.

[0053] In an exemplary embodiment, the ninth lens of the optical imaging lens has positive or negative optical power. The object side of the ninth lens is convex or concave, and the image side is concave. Such a setting can effectively control the light trend, converge the main light angle, share the optical power of the subsequent tenth lens and eleventh lens, and make the light transition smooth.

[0054] In an exemplary embodiment, the tenth lens of the optical imaging lens has positive power. The object side surface of the tenth lens is convex or concave, and the image side surface is convex. The tenth lens may be an aspherical lens. Such an arrangement can effectively correct the spherical aberration of the rear optical system, and at the same time, in conjunction with the rear eleventh lens, can effectively correct the axial chromatic aberration and improve the imaging quality of the lens.

[0055] In an exemplary embodiment, the eleventh lens of the optical imaging lens has positive focal power or negative focal power. When the object side surface of the eleventh lens is convex, the image side surface is convex or concave; or, when the object side surface of the eleventh lens is concave, the image side surface is convex. By reasonably setting the focal power and lens shape of the eleventh lens, the light trend can be effectively controlled, the exit angle of the light passing through the eleventh lens can be effectively lowered, and the main light angle can be reduced to better match the chip and the chip CRA (Chief Ray Angle) curve requirements; at the same time, the eleventh lens is an aspherical lens, which can effectively correct the residual aberration of the lens and improve the resolution of the lens.

[0056] In an exemplary embodiment, the optical imaging lens satisfies: -5.5≤f2 / f≤-1.3, where f2 is the effective focal length of the second lens and f is the total effective focal length of the optical imaging lens. By properly controlling the effective focal length of the second lens, it is possible to effectively collect light with a large field of view, reduce the incident angle of the light on the object side of the second lens, and effectively avoid the generation of high-order aberrations in the rear optical system due to excessive incident angles, thereby improving the resolution of the lens. Exemplarily, the optical imaging lens may also satisfy: -5.4≤f2 / f≤-1.4, which is more conducive to improving the resolution of the lens.

[0057] In an exemplary embodiment, the optical imaging lens satisfies: -9.8≤f3 / f≤-1.0, where f3 is the effective focal length of the third lens and f is the total effective focal length of the optical imaging lens. By properly configuring the effective focal length of the third lens, the trend of light can be effectively controlled, so that the light has a divergent effect, which is conducive to allowing as much large-angle light as possible to enter the rear optical system and improve the relative illumination of the lens. Exemplarily, the optical imaging lens can also satisfy: -3.26≤f3 / f≤-1.1, which is more conducive to improving the relative illumination of the lens.

[0058] In an exemplary embodiment, the optical imaging lens satisfies: 0.6≤f4 / f≤1.2, where f4 is the effective focal length of the fourth lens and f is the total effective focal length of the optical imaging lens. By properly configuring the effective focal length of the fourth lens, it is beneficial to correct the spherical aberration of the lens and improve the resolution of the lens. Exemplarily, the optical imaging lens may also satisfy: 0.7≤f4 / f≤0.9, which is more beneficial to improve the resolution of the lens.

[0059] In an exemplary embodiment, the optical imaging lens satisfies: -4.3≤f5 / f≤-1.9, where f5 is the effective focal length of the fifth lens and f is the total effective focal length of the optical imaging lens. By properly configuring the effective focal length of the fifth lens, it is beneficial to correct the spherical aberration and axial chromatic aberration of the lens and improve the resolution of the lens. Exemplarily, the optical imaging lens may also satisfy: -4.25≤f5 / f≤-2, which is more beneficial to improve the resolution of the lens.

[0060] In an exemplary embodiment, the optical imaging lens satisfies: -3≤f5 / f6≤-1, where f5 is the effective focal length of the fifth lens and f6 is the effective focal length of the sixth lens. By reasonably allocating the effective focal lengths of the fifth lens and the sixth lens, the spherical aberration and axial chromatic aberration of the lens can be effectively corrected to improve the resolution of the lens; the characteristic of eliminating temperature drift can also be better achieved, which is helpful to achieve thermal compensation of the lens, so that the lens has good temperature performance. Exemplarily, the optical imaging lens can also satisfy: -2.9≤f5 / f6≤-1.2, which is more conducive to making the lens have good temperature performance.

[0061] In an exemplary embodiment, the optical imaging lens satisfies: -2.0≤f7 / f8≤-1.0, where f7 is the effective focal length of the seventh lens and f8 is the effective focal length of the eighth lens. By rationally configuring the effective focal lengths of the seventh lens and the eighth lens and using a combination of positive and negative optical powers, it is beneficial to balance the astigmatism generated by the rear optical system and improve the resolution of the lens. Exemplarily, the optical imaging lens may also satisfy: -2.0≤f7 / f8≤-1.1, which is more beneficial to improving the resolution of the lens.

[0062] In an exemplary embodiment, the optical imaging lens satisfies: -0.4≤f10 / f11≤5.5, wherein f10 is the effective focal length of the tenth lens, and f11 is the effective focal length of the eleventh lens. By properly configuring the effective focal lengths of the tenth lens and the eleventh lens, the light trend can be effectively controlled, which is conducive to achieving a longer focal length. Exemplarily, the optical imaging lens may also satisfy: -0.3≤f10 / f11≤5.3, which is more conducive to achieving a longer focal length.

[0063] In an exemplary embodiment, the optical imaging lens satisfies: -1.0≤f12 / f≤-0.4, wherein f12 is the combined focal length of the first lens and the second lens, and f is the total effective focal length of the optical imaging lens. By rationally configuring the combined focal length of the first lens and the second lens, it is beneficial for incident light of a large angle to enter the optical system, effectively expanding the field of view of the lens, so that the field of view FOV ≥ 164°, and at the same time effectively avoiding the generation of aberrations and improving the relative illumination of the lens. Exemplarily, the optical imaging lens may also satisfy: -0.95≤f12 / f≤-0.45, which is more conducive to improving the relative illumination of the lens.

[0064] In an exemplary embodiment, the optical imaging lens satisfies: 0.9≤f34 / f≤1.9, wherein f34 is the combined focal length of the third lens and the fourth lens, and f is the total effective focal length of the optical imaging lens. By rationally configuring the combined focal length of the third lens and the fourth lens, it is helpful to control the trend of light, so that the light is smoothly incident on the object side of the fifth lens, which helps to reduce the tolerance sensitivity of the lens, and is also helpful to better correct the aberration of the central field of view area and improve the resolution of the lens. Exemplarily, the optical imaging lens may also satisfy: 1.0≤f34 / f≤1.8, which is more conducive to reducing the tolerance sensitivity of the lens and improving the resolution of the lens.

[0065] In an exemplary embodiment, the optical imaging lens satisfies: -2.3≤f345 / fa≤-0.5, wherein f345 is the combined focal length of the third lens, the fourth lens and the fifth lens, and fa is the combined focal length of the first lens to the fifth lens. By reasonably controlling the combined focal length of the third lens, the fourth lens and the fifth lens and the combined focal length of the first lens to the fifth lens, the trend of light can be effectively controlled, which is conducive to better correction of the spherical aberration and axial chromatic aberration of the lens; it can also make the light transition smoothly, thereby effectively reducing the tolerance sensitivity of the lens and improving the production yield of the lens. Exemplarily, the optical imaging lens can also satisfy: -2.2≤f345 / fa≤-0.55, which is more conducive to reducing the tolerance sensitivity of the lens.

[0066] In an exemplary embodiment, the optical imaging lens satisfies: 0.6≤f6 / fb≤1.0, wherein f6 is the effective focal length of the sixth lens, and fb is the combined focal length of the sixth lens to the eleventh lens. By rationally configuring the effective focal length of the sixth lens and the combined focal length of the sixth lens to the eleventh lens, it is beneficial to smoothly transmit light, reduce the tolerance sensitivity of the lens, and improve the production yield of the lens. Exemplarily, the optical imaging lens may also satisfy: 0.7≤f6 / fb≤0.9, which is more beneficial to reduce the tolerance sensitivity of the lens.

[0067] In an exemplary embodiment, the optical imaging lens satisfies: 0.5≤|R112 / f11|≤8.9, wherein R112 is the radius of curvature of the image side surface of the eleventh lens, and f11 is the effective focal length of the eleventh lens. By reasonably controlling the radius of curvature of the image side surface of the eleventh lens and the effective focal length of the eleventh lens, the angle of incidence of light passing through the eleventh lens can be effectively lowered, and the angle of the main light can be reduced, so as to better match the chip and the chip CRA curve requirements, improve the tolerance and manufacturability of the lens, and improve the resolution of the lens. Exemplarily, the optical imaging lens can also satisfy: 0.55≤|R112 / f11|≤8.8, which is more conducive to improving the resolution of the lens.

[0068] In an exemplary embodiment, the optical imaging lens satisfies: -2.7≤fa / f≤-0.9, wherein fa is the combined focal length of the first lens to the fifth lens, and f is the total effective focal length of the optical imaging lens. By reasonably controlling the combined focal length of the first lens to the fifth lens, the image-side principal plane of the entire optical system can be brought closer to the imaging plane, achieving the effect of reverse telephoto of the optical system, effectively increasing the back focal length of the lens, and facilitating the assembly of the lens module. At the same time, lengthening the back focal length can also help reduce the energy of ghost images generated by the central reflection of the lens and the color filter, improve the imaging quality of the lens, and improve the resolution of the lens. Exemplarily, the optical imaging lens can also satisfy: -2.55≤fa / f≤-1, which is more conducive to improving the resolution of the lens.

[0069] In an exemplary embodiment, the optical imaging lens satisfies: 1.6≤fb / f≤2.1, wherein fb is the combined focal length of the sixth lens to the eleventh lens, and f is the total effective focal length of the optical imaging lens. By properly controlling the combined focal length of the sixth lens to the eleventh lens, it can help achieve a longer focal length. Exemplarily, the optical imaging lens can also satisfy: 1.7≤fb / f≤2.0, which is more conducive to achieving a longer focal length.

[0070] In an exemplary embodiment, the optical imaging lens satisfies: -1.5≤fa / fb≤-0.5, where fa is the combined focal length of the first lens to the fifth lens, and fb is the combined focal length of the sixth lens to the eleventh lens. By rationally allocating the combined focal length of the first lens to the fifth lens and the combined focal length of the sixth lens to the eleventh lens, it is helpful to control the overall light trend of the optical system, make the light transition smoother, reduce the tolerance sensitivity of the lens, and improve the imaging quality of the lens. Exemplarily, the optical imaging lens may also satisfy: -1.4≤fa / fb≤-0.55, which is more conducive to reducing the tolerance sensitivity of the lens.

[0071] In an exemplary embodiment, the optical imaging lens satisfies: 0.5° / mm 2 ≤FOV / H / D≤0.8° / mm 2 , where FOV is the maximum field of view of the optical imaging lens, H is the image height corresponding to the maximum field of view of the optical imaging lens, and D is the maximum aperture of the optical imaging lens. By controlling the ratio of the field of view angle, image height, and maximum aperture, the viewpoint position can be effectively controlled to ensure that the aperture meets the design requirements and that the lens has a reasonable field of view when corresponding to different sensors. For example, the optical imaging lens can also meet the following requirements: 0.6° / mm 2 ≤FOV / H / D≤0.7° / mm 2 , which is more conducive to ensuring that the aperture meets the design requirements and enables the lens to have a reasonable field of view when corresponding to different sensors.

[0072] In an exemplary embodiment, the optical imaging lens satisfies: 9.2mm≤TTL×f / H≤10.1mm, wherein TTL is the on-axis distance from the object side of the first lens to the imaging surface of the optical imaging lens, f is the total effective focal length of the optical imaging lens, and H is the image height corresponding to the maximum field angle of the optical imaging lens. By controlling the above conditions, it is beneficial to make the structure of the entire lens more compact and to achieve miniaturization. Exemplarily, the optical imaging lens may also satisfy: 9.25mm≤TTL×f / H≤10mm, which is more conducive to achieving miniaturization of the lens.

[0073] In an exemplary embodiment, the optical imaging lens satisfies: 0.3≤BFL / f≤0.8, where BFL is the distance from the image side of the eleventh lens to the imaging surface of the optical lens on the optical axis, and f is the total effective focal length of the optical imaging lens. On the basis of being able to achieve miniaturization, by making the back focus of the lens longer, it is helpful to reserve space for the installation of optical elements, facilitate the assembly of the lens, avoid interference, and improve the assembly yield of the lens. Exemplarily, the optical imaging lens may also satisfy: 0.4≤BFL / f≤0.6, which is more conducive to improving the assembly yield of the lens.

[0074] In an exemplary embodiment, the optical imaging lens satisfies at least one of the following: 5.8≤|Vd3-Vd4|≤7.6; 32.8≤|Vd7-Vd8|≤50.5; wherein Vd3 is the Abbe number of the third lens, Vd4 is the Abbe number of the fourth lens, Vd7 is the Abbe number of the seventh lens, and Vd8 is the Abbe number of the eighth lens. By properly selecting the lens materials of the third lens, the fourth lens, the seventh lens, and the eighth lens, the vertical axis chromatic aberration of the lens can be effectively corrected, the generation of lens purple fringing can be avoided, and the imaging quality of the lens can be improved; at the same time, the deviation of the back focus of the lens caused by temperature changes can be suppressed to improve the stability of the lens, which is helpful to improve the imaging quality of the lens. Exemplarily, the third lens, the fourth lens, the seventh lens, and the eighth lens are glass lenses. Exemplarily, the optical imaging lens can also satisfy at least one of the following: 5.9≤|Vd3-Vd4|≤7.5; 32.9≤|Vd7-Vd8|≤50.4, which is more conducive to correcting the vertical axis chromatic aberration of the lens.

[0075] In an exemplary embodiment, the distance TTL from the object side surface of the first lens in the optical imaging lens of the present application to the imaging surface of the optical imaging lens on the optical axis may satisfy: TTL≤31.48 mm, thereby achieving miniaturization of the lens.

[0076] In an exemplary embodiment, the image height H corresponding to the maximum field angle of the optical imaging lens of the present application may satisfy: 15mm≤H≤18mm. Further, H may satisfy: 16.3mm≤H≤16.55mm. A large target surface of the lens can be achieved.

[0077] In an exemplary embodiment, the aperture number Fno of the optical imaging lens of the present application satisfies: Fno≤2.82. Further, Fno may satisfy: 2.80≤Fno≤2.82.

[0078] In an exemplary embodiment, the maximum field of view FOV of the optical imaging lens of the present application is ≥164°.

[0079] In an exemplary embodiment, the present application uses a combination of spherical lenses and aspherical lenses to reduce the difficulty of lens processing; at the same time, a heat-free design can be achieved through material matching. The present application does not specifically limit the specific number of spherical lenses and aspherical lenses. When focusing on imaging quality, the number of aspherical lenses can be increased, and even all lenses use aspherical lenses. The characteristics of aspherical lenses are: the curvature changes continuously from the center of the lens to the periphery. Unlike spherical lenses with constant curvature from the center of the lens to the periphery, aspherical lenses have better curvature radius characteristics and have the advantages of improving distortion aberration and improving astigmatism aberration. After using aspherical lenses, the aberrations that occur during imaging can be eliminated as much as possible, thereby improving the resolution and imaging quality of the lens. Exemplarily, the second lens, the fifth lens, the tenth lens, and the eleventh lens may be aspherical lenses; or, the second lens, the fifth lens, the ninth lens, the tenth lens, and the eleventh lens may be aspherical lenses.

[0080] The optical imaging lens of the present application can adopt a lens structure made of all glass materials. The optical imaging lens made of glass can suppress the deviation of the back focus of the optical imaging lens due to temperature changes, so as to improve the stability of the system; at the same time, the use of glass material can avoid the occurrence of lens imaging blur due to high and low temperature changes in the use environment, ensuring the normal use of the lens, which is conducive to the lens to achieve athermalization, and can also better correct the system chromatic aberration and improve the resolution of the lens. The optical imaging lens designed with all glass materials in the present application has a wide temperature range and can maintain stable optical performance in the range of -40℃ to 80℃.

[0081] The optical imaging lens of the present application may further include an aperture for limiting the light beam, which is conducive to converging the light entering the optical lens, reducing the maximum aperture of the optical lens, and reducing the assembly sensitivity of the system, so as to further improve the imaging quality of the optical lens. It should be noted that the aperture can be set between or on one side of any lens according to actual needs. Exemplarily, the aperture is set between the fifth lens and the sixth lens.

[0082] The optical imaging lens of the present application has excellent resolution and can be used with a camera to achieve high resolution (50 million pixels).

[0083] Optionally, in other alternative exemplary embodiments, the optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the imaging surface.

[0084] However, those skilled in the art should understand that, without departing from the technical solution claimed in the present application, the number of lenses constituting the optical imaging lens can be changed to obtain the various results and advantages described in this specification. For example, although eleven lenses are described as an example in the embodiments, the optical imaging lens is not limited to including eleven lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0085] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0086] Example 1

[0087] Figure 1 FIG. 1 is a schematic diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application. Figure 1 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10 and an eleventh lens L11.

[0088] The first lens L1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens L2 has negative focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens L3 has negative focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens L4 has positive focal power, and its object side surface S6 is convex, and its image side surface S7 is convex. The fifth lens L5 has negative focal power, and its object side surface S8 is concave, and its image side surface S9 is convex. The sixth lens L6 has positive focal power, and its object side surface S10 is convex, and its image side surface S11 is convex. The seventh lens L7 has negative focal power, and its object side surface S12 is convex, and its image side surface S13 is concave. The eighth lens L8 has positive focal power, and its object side surface S13 is convex, and its image side surface S14 is convex. The ninth lens L9 has negative refractive power, its object side surface S15 is concave, and its image side surface S16 is concave. The tenth lens L10 has positive refractive power, its object side surface S17 is convex, and its image side surface S18 is convex. The eleventh lens L11 has positive refractive power, its object side surface S19 is convex, and its image side surface S20 is concave.

[0089] Among them, the third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0090] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0091] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object sequentially passes through each surface S1 to S22 and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 1 Not shown in FIG.

[0092] Table 1 shows the basic parameters of the optical imaging lens of Example 1, wherein the units of the radius of curvature and thickness / distance are both millimeters (mm).

[0093] Table 1

[0094]

[0095]

[0096] In Example 1, the object side surface and the image side surface of the second lens, the fifth lens, the ninth lens, the tenth lens and the eleventh lens are all aspherical surfaces, and the surface shape of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0097]

[0098] Wherein, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. Table 2 below gives the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspheric mirror surface in Example 1.

[0099] Table 2

[0100] Face number k A4 A6 A8 A10 A12 A14 A16 S3 0.00 6.53E-04 -2.49E-04 2.11E-05 -1.21E-06 3.10E-08 0 0 S4 -4.55 3.44E-04 -3.49E-04 3.38E-05 -2.24E-06 8.13E-08 0 0 S8 -4.00 2.54E-03 -1.99E-04 2.51E-06 9.53E-08 4.08E-08 -7.72E-09 3.82E-10 S9 21.56 8.34E-03 -2.98E-04 4.69E-05 -7.26E-06 1.08E-06 -1.04E-07 7.05E-09 S15 0.00 3.97E-03 -3.50E-05 -8.47E-06 -5.96E-07 1.75E-07 -1.17E-08 2.86E-10 S16 0.00 1.88E-03 3.05E-05 -2.74E-06 -5.62E-07 6.12E-08 -2.39E-09 3.49E-11 S17 0.00 -1.27E-03 5.08E-05 -5.09E-07 -1.08E-08 -1.03E-09 5.31E-11 -7.06E-13 S18 0.00 1.79E-03 -5.30E-05 1.13E-07 4.14E-08 -1.08E-09 5.99E-12 5.03E-14 S19 0.00 4.39E-04 -2.83E-05 5.57E-07 -3.41E-09 0 0 0 S20 0.00 7.61E-05 -3.32E-05 7.81E-07 -5.28E-09 0 0 0

[0101] Example 2

[0102] Figure 2 FIG. 2 shows a schematic diagram of the structure of an optical imaging lens according to Embodiment 2 of the present application. Figure 2 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10 and an eleventh lens L11.

[0103] The first lens L1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens L2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens L3 has negative focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens L4 has positive focal power, and its object side surface S6 is convex, and its image side surface S7 is convex. The fifth lens L5 has negative focal power, and its object side surface S8 is concave, and its image side surface S9 is convex. The sixth lens L6 has positive focal power, and its object side surface S10 is convex, and its image side surface S11 is convex. The seventh lens L7 has positive focal power, and its object side surface S12 is convex, and its image side surface S13 is convex. The eighth lens L8 has negative focal power, and its object side surface S13 is concave, and its image side surface S14 is concave. The ninth lens L9 has positive refractive power, its object side surface S15 is convex, and its image side surface S16 is concave. The tenth lens L10 has positive refractive power, its object side surface S17 is concave, and its image side surface S18 is convex. The eleventh lens L11 has positive refractive power, its object side surface S19 is convex, and its image side surface S20 is concave.

[0104] Among them, the third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0105] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0106] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object sequentially passes through each surface S1 to S22 and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 2 Not shown in FIG.

[0107] Table 3 shows the basic parameters of the optical imaging lens of Example 2, wherein the units of the radius of curvature and thickness / distance are both millimeters (mm).

[0108] Table 3

[0109]

[0110] In Example 2, the object side surface and the image side surface of the second lens, the fifth lens, the tenth lens and the eleventh lens are all aspherical surfaces, and the surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) given in the above Example 1. Table 4 below shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical mirror surface in Example 2.

[0111] Table 4

[0112] Face number k A4 A6 A8 A10 A12 A14 A16 S3 0.00 1.39E-03 -2.10E-04 2.38E-05 -1.34E-06 2.15E-08 0 0 S4 0.37 2.35E-03 -1.64E-04 3.16E-05 -6.20E-07 -3.09E-08 0 0 S8 0.29 7.69E-03 -9.02E-05 1.94E-05 -9.87E-07 1.59E-08 1.18E-08 -5.43E-10 S9 2.30 4.79E-03 -6.06E-05 1.95E-05 -2.90E-06 2.16E-07 -1.56E-09 2.94E-10 S17 0.00 -2.47E-04 6.01E-05 -2.06E-06 2.98E-08 -1.71E-10 -5.15E-15 2.78E-14 S18 -0.35 8.61E-04 2.02E-05 8.85E-07 -5.60E-08 7.24E-10 1.59E-13 2.94E-14 S19 7.09 4.38E-04 -1.29E-05 1.82E-07 -1.18E-09 -1.15E-11 -2.22E-13 3.93E-15 S20 0.00 -8.09E-05 -1.54E-05 4.52E-07 -1.91E-09 -3.27E-11 -1.36E-13 2.54E-15

[0113] Example 3

[0114] Figure 3 FIG. 2 shows a schematic diagram of the structure of an optical imaging lens according to Embodiment 3 of the present application. Figure 3 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10 and an eleventh lens L11.

[0115] The first lens L1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens L2 has negative focal power, and its object side surface S3 is convex, and its image side surface S4 is concave. The third lens L3 has negative focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens L4 has positive focal power, and its object side surface S6 is convex, and its image side surface S7 is convex. The fifth lens L5 has negative focal power, and its object side surface S8 is concave, and its image side surface S9 is convex. The sixth lens L6 has positive focal power, and its object side surface S10 is convex, and its image side surface S11 is convex. The seventh lens L7 has positive focal power, and its object side surface S12 is convex, and its image side surface S13 is convex. The eighth lens L8 has negative focal power, and its object side surface S13 is concave, and its image side surface S14 is concave. The ninth lens L9 has positive refractive power, its object side surface S15 is convex, and its image side surface S16 is concave. The tenth lens L10 has positive refractive power, its object side surface S17 is convex, and its image side surface S18 is convex. The eleventh lens L11 has negative refractive power, its object side surface S19 is concave, and its image side surface S20 is convex.

[0116] Among them, the third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0117] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0118] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object sequentially passes through each surface S1 to S22 and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 3 Not shown in FIG.

[0119] Table 5 shows the basic parameters of the optical imaging lens of Example 3, wherein the units of the radius of curvature and thickness / distance are both millimeters (mm).

[0120] Table 5

[0121]

[0122] In Example 3, the object side surface and the image side surface of the second lens, the fifth lens, the tenth lens and the eleventh lens are all aspherical surfaces, and the surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) given in the above Example 1. The following Table 6 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical mirror surface in Example 3.

[0123] Table 6

[0124] Face number k A4 A6 A8 A10 A12 A14 A16 S3 -5.37 2.84E-03 -4.72E-04 5.60E-05 -5.22E-06 3.14E-07 -1.08E-08 1.43E-10 S4 -0.06 2.82E-03 -5.05E-04 6.60E-05 -7.48E-06 6.47E-07 -3.61E-08 9.11E-10 S8 0.61 7.69E-03 -1.66E-04 2.90E-05 -3.41E-06 5.46E-07 -4.31E-08 1.69E-09 S9 -21.99 2.25E-03 -3.41E-05 5.63E-05 -1.83E-05 3.11E-06 -2.66E-07 9.93E-09 S17 0.00 -1.69E-03 2.74E-04 -1.81E-05 7.52E-07 -1.98E-08 2.96E-10 -1.91E-12 S18 -5.25 -2.58E-03 3.67E-04 -1.89E-05 6.04E-07 -1.26E-08 1.56E-10 -8.41E-13 S19 -31.95 2.85E-03 -1.34E-04 4.65E-06 -1.16E-07 1.79E-09 -1.48E-11 4.82E-14 S20 120.00 1.64E-03 -2.12E-04 1.07E-05 -2.92E-07 4.51E-09 -3.64E-11 1.17E-13

[0125] Example 4

[0126] Figure 4 FIG. 4 shows a schematic diagram of the structure of an optical imaging lens according to Embodiment 4 of the present application. Figure 4 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10 and an eleventh lens L11.

[0127] The first lens L1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens L2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens L3 has negative focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens L4 has positive focal power, and its object side surface S6 is convex, and its image side surface S7 is convex. The fifth lens L5 has negative focal power, and its object side surface S8 is concave, and its image side surface S9 is convex. The sixth lens L6 has positive focal power, and its object side surface S10 is convex, and its image side surface S11 is convex. The seventh lens L7 has negative focal power, and its object side surface S12 is concave, and its image side surface S13 is concave. The eighth lens L8 has positive focal power, and its object side surface S13 is convex, and its image side surface S14 is convex. The ninth lens L9 has negative refractive power, its object side surface S15 is concave, and its image side surface S16 is concave. The tenth lens L10 has positive refractive power, its object side surface S17 is convex, and its image side surface S18 is convex. The eleventh lens L11 has positive refractive power, its object side surface S19 is convex, and its image side surface S20 is convex.

[0128] Among them, the third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0129] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0130] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object sequentially passes through each surface S1 to S22 and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 4 Not shown in FIG.

[0131] Table 7 shows a basic parameter table of the optical imaging lens of Example 4, wherein the units of the radius of curvature and thickness / distance are both millimeters (mm).

[0132] Table 7

[0133]

[0134]

[0135] In Example 4, the object side surface and the image side surface of the second lens, the fifth lens, the tenth lens and the eleventh lens are all aspherical surfaces, and the surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) given in the above Example 1. The following Table 8 shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical mirror surface in Example 4.

[0136] Table 8

[0137] Face number k A4 A6 A8 A10 A12 A14 A16 S3 0.00 2.92E-03 -2.31E-04 1.13E-05 -3.20E-07 4.35E-25 0 0 S4 0.00 2.46E-03 -2.37E-04 7.55E-06 -1.37E-07 -5.54E-26 0 0 S8 0.00 7.48E-03 3.92E-05 -6.15E-06 5.53E-07 2.07E-27 1.98E-33 0 S9 0.00 5.92E-03 2.26E-05 1.35E-05 -1.33E-06 -1.91E-28 0 0 S17 0.00 1.32E-04 -5.85E-06 3.59E-07 -5.73E-09 -4.08E-22 -3.79E-27 0 S18 0.00 3.19E-04 2.41E-06 4.84E-07 -3.65E-09 4.43E-22 4.95E-27 0 S19 2.55 -4.41E-04 3.65E-06 0 0 0 0 0 S20 0.35 -1.14E-05 7.60E-07 0 0 0 0 0

[0138] Example 5

[0139] Figure 5 FIG. 5 shows a schematic diagram of the structure of an optical imaging lens according to Embodiment 5 of the present application. Figure 5 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10 and an eleventh lens L11.

[0140] The first lens L1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens L2 has negative focal power, and its object side surface S3 is concave, and its image side surface S4 is concave. The third lens L3 has negative focal power, and its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens L4 has positive focal power, and its object side surface S6 is convex, and its image side surface S7 is convex. The fifth lens L5 has negative focal power, and its object side surface S8 is concave, and its image side surface S9 is convex. The sixth lens L6 has positive focal power, and its object side surface S10 is convex, and its image side surface S11 is convex. The seventh lens L7 has positive focal power, and its object side surface S12 is convex, and its image side surface S13 is convex. The eighth lens L8 has negative focal power, and its object side surface S13 is concave, and its image side surface S14 is concave. The ninth lens L9 has positive refractive power, its object side surface S15 is convex, and its image side surface S16 is concave. The tenth lens L10 has positive refractive power, its object side surface S17 is concave, and its image side surface S18 is convex. The eleventh lens L11 has positive refractive power, its object side surface S19 is convex, and its image side surface S20 is concave.

[0141] Among them, the third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0142] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0143] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object sequentially passes through each surface S1 to S22 and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 5 Not shown in FIG.

[0144] Table 9 shows the basic parameters of the optical imaging lens of Example 5, wherein the units of the radius of curvature and thickness / distance are both millimeters (mm).

[0145] Table 9

[0146]

[0147] In Example 5, the object side surface and the image side surface of the second lens, the fifth lens, the tenth lens and the eleventh lens are all aspherical surfaces, and the surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) given in the above Example 1. Table 10 below shows the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical mirror surface in Example 5.

[0148] Table 10

[0149]

[0150]

[0151] Table 11 shows the values ​​of parameters of the optical imaging lens in each of Examples 1 to 5, where the unit of FOV is degree (°), Fno has no unit, and the units of other parameters are all millimeters (mm).

[0152] Table 11

[0153] Parameters / Examples 1 2 3 4 5 f2 -26.167 -7.384 -11.093 -15.695 -10.959 f12 -4.348 -2.596 -2.902 -3.699 -2.999 f3 -5.649 -16.014 -12.534 -7.795 -16.907 f4 3.514 4.006 3.813 3.895 4.368 f34 6.740 5.343 5.310 7.094 9.318 f5 -9.866 -10.662 -11.532 -17.366 -21.986 f345 17.476 9.267 8.603 12.029 7.872 f6 7.806 7.453 8.081 7.321 7.663 f7 -9.012 6.033 6.790 -6.575 7.298 f8 5.883 -3.745 -4.036 5.875 -3.824 f10 13.241 15.868 8.519 12.735 103.151 f11 93.386 88.304 -34.238 30.690 19.641 fa -8.114 -5.418 -8.025 -9.710 -13.070 fb 8.963 9.000 9.758 9.902 9.667 f 4.900 5.180 4.957 5.087 5.232 TTL 31.404 31.397 31.434 30.749 31.403 FOV 166.600 165.000 165.400 164.000 165.000 H 16.53 16.46 16.52 16.38 16.51 D 15.815 15.923 16.029 15.978 16.034 BFL 2.304 2.633 2.760 2.651 2.970 Fno 2.82 2.81 2.81 2.80 2.81

[0154] In summary, the optical imaging lenses in Examples 1 to 5 respectively satisfy the relationships shown in Table 12.

[0155] Table 12

[0156]

[0157]

[0158] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. An optical imaging lens, characterized in that: Along the optical axis from the object side to the image side, they include: a first lens having negative optical power; a second lens having negative optical power; a third lens having negative optical power; a fourth lens having positive refractive power; a fifth lens having negative optical power; a sixth lens having positive refractive power; a seventh lens having positive or negative power; an eighth lens having positive or negative optical power; a ninth lens having positive or negative optical power; a tenth lens having positive refractive power; and an eleventh lens having positive or negative power; The positive and negative properties of the optical power of the seventh lens and the eighth lens are opposite.

2. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: -5.5≤f2 / f≤-1.3, wherein f2 is the effective focal length of the second lens, and f is the total effective focal length of the optical imaging lens.

3. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: -9.8≤f3 / f≤-1.0, wherein f3 is the effective focal length of the third lens, and f is the total effective focal length of the optical imaging lens.

4. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: 0.6≤f4 / f≤1.2, wherein f4 is the effective focal length of the fourth lens, and f is the total effective focal length of the optical imaging lens.

5. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: -4.3≤f5 / f≤-1.9, wherein f5 is the effective focal length of the fifth lens, and f is the total effective focal length of the optical imaging lens.

6. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: -3≤f5 / f6≤-1, wherein f5 is the effective focal length of the fifth lens, and f6 is the effective focal length of the sixth lens.

7. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: -2.0≤f7 / f8≤-1.0, wherein f7 is the effective focal length of the seventh lens, and f8 is the effective focal length of the eighth lens.

8. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: -0.4≤f10 / f11≤5.5, wherein f10 is the effective focal length of the tenth lens, and f11 is the effective focal length of the eleventh lens.

9. The optical imaging lens according to any one of claims 1 to 8, characterized in that: The optical imaging lens satisfies: -1.0≤f12 / f≤-0.4, wherein f12 is the combined focal length of the first lens and the second lens, and f is the total effective focal length of the optical imaging lens.

10. The optical imaging lens according to any one of claims 1 to 8, characterized in that: The optical imaging lens satisfies: 0.9≤f34 / f≤1.9, wherein f34 is the combined focal length of the third lens and the fourth lens, and f is the total effective focal length of the optical imaging lens.

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