Optical lenses and electronic equipment

Abstract

The present application discloses an optical lens and an electronic device. The optical lens includes six lenses with optical power in sequence from the first side to the second side along the optical axis: a first lens, the first side is convex and the second side is concave; a second lens, the first side is concave and the second side is convex; a third lens, and at least one of the second lenses has positive optical power; a fourth lens with positive optical power, the second side is convex; a fifth lens; a sixth lens with an optical power opposite to that of the fifth lens; and the following conditions are satisfied: 0.25≤|F3 / F|, ‑6.5≤R4 / F≤‑0.1, 2.5≤|F1 / F|, 1.5≤TTL / F≤3.0, 0.12≤(d5+d6) / TTL≤0.4.

Description

Technical Field

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

[0002] With the continuous progress of science and technology and the continuous development of society, the market has higher and higher requirements for optical lenses used in various scenarios. However, the optical lenses in the related art, especially those used in vehicles, such as electronic rearview mirrors, have the following problems, which make them unable to meet the market requirements:

[0003] 1) It cannot take into account both high resolution and miniaturization; 2) It cannot take into account both small front port diameter and miniaturization; 3) The light transmission capacity is not strong and cannot adapt to the dark environment at night or on rainy days.

[0004] In summary, based on the above considerations, there is an urgent need to design a lens that can comprehensively achieve the requirements of high resolution, miniaturization, small aperture and high light flux. Summary of the invention

[0005] One aspect of the present application provides an optical lens, which includes, in order from the first side to the second side along the optical axis: a first lens with optical power, whose first side surface is convex and whose second side surface is concave; a second lens with optical power, whose first side surface is concave and whose second side surface is convex; a third lens with optical power; a fourth lens with positive optical power, whose second side surface is convex; a fifth lens with optical power; and a sixth lens with optical power; wherein at least one of the second lens and the third lens has positive optical power; one of the fifth lens and the sixth lens has positive optical power, and the other has negative optical power. degrees; the number of lenses with optical power in the optical lens is six, and the optical lens satisfies: 0.25≤|F3 / F|, -6.5≤R4 / F≤-0.1, 2.5≤|F1 / F|, 1.5≤TTL / F≤3.0, 0.12≤(d5+d6) / TTL≤0.4, wherein F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F3 is the effective focal length of the third lens, R4 is the central curvature radius of the second side surface of the second lens, TTL is the total optical length of the optical lens, d5 is the central thickness of the fifth lens, and d6 is the central thickness of the sixth lens.

[0006] According to the embodiment of the present application, the optical lens includes six lenses with optical power, which are a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence from the first side to the second side along the optical axis, wherein the first side surface of the first lens is convex, and the second side surface is concave; the first side surface of the second lens is concave, and the second side surface is convex; the second side surface of the fourth lens is convex; at least one of the second lens and the third lens has positive optical power; one of the fifth lens and the sixth lens has positive optical power, and the other has negative optical power. The number of lenses with optical power in the optical lens is six, and at the same time, the optical lens is controlled to satisfy: 0.25≤|F3 / F|, -6.5≤R4 / F≤-0.1, 2.5≤|F1 / F|, 1.5≤TTL / F≤3.0, 0.12≤(d5+d6) / TTL≤0.4, so that the optical lens can achieve at least one of small aperture, high luminous flux, miniaturization, high resolution, small CRA, large image surface, etc.

[0007] Another aspect of the present application provides an optical lens, which includes, in order from the first side to the second side along the optical axis: a first lens with optical power, whose first side surface is convex and whose second side surface is concave; a second lens with optical power, whose first side surface is concave and whose second side surface is convex; a third lens with optical power; a fourth lens with positive optical power, whose second side surface is convex; a fifth lens with optical power; and a sixth lens with optical power; wherein at least one of the second lens and the third lens has positive optical power; one of the fifth lens and the sixth lens has positive optical power, and the other has negative optical power; the number of lenses with optical power in the optical lens is six, and the optical lens satisfies: 2.5≤|F1 / F|, 0.4≤ R1 / R2≤1.5, -6.5≤R2 / R3≤-0.4, 0.84≤L / TTL≤0.97, 0.0065≤D / H / FOV≤0.011, wherein F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, FOV is the maximum field of view of the optical lens, R1 is the central curvature radius of the first side surface of the first lens, R2 is the central curvature radius of the second side surface of the first lens, R3 is the central curvature radius of the first side surface of the second lens, L is the spacing distance from the aperture to the imaging surface along the optical axis, TTL is the total optical length of the optical lens, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, and H is the image height corresponding to the maximum field of view of the optical lens.

[0008] Another aspect of the present application provides an optical lens, which includes, in order from the first side to the second side along the optical axis: a first lens with optical power, whose first side surface is convex and whose second side surface is concave; a second lens with optical power, whose first side surface is concave and whose second side surface is convex; a third lens with optical power; a fourth lens with positive optical power, whose second side surface is convex; wherein at least one of the second lens and the third lens has positive optical power; a fifth lens with optical power; the number of lenses with optical power in the optical lens is six, and a sixth lens with optical power; one of the fifth lens and the sixth lens has positive optical power, and the other has negative optical power; the optical lens satisfies: 0.2≤F4 / F≤5, wherein F is the total effective focal length of the optical lens, and F4 is the effective focal length of the fourth lens.

[0009] In one embodiment, the first lens has positive or negative optical power.

[0010] In one embodiment, the second lens has positive or negative optical power.

[0011] In one embodiment, the third lens has positive optical power, and its first side surface is convex and its second side surface is concave, or the first side surface is concave and the second side surface is convex; or the third lens has negative optical power, and its first side surface is concave and its second side surface is concave or convex.

[0012] In one embodiment, the first side surface of the fourth lens is a concave surface or a convex surface.

[0013] In one embodiment, the fifth lens has positive optical power, its first side surface is convex, and its second side surface is convex or concave; or the fifth lens has negative optical power, its first side surface is concave, and its second side surface is concave.

[0014] In one embodiment, the sixth lens has positive optical power, its first side surface is convex, and its second side surface is convex; or the sixth lens has negative optical power, its first side surface is concave or convex, and its second side surface is concave.

[0015] In one embodiment, the optical lens satisfies: 0.0065≤(D / H / FOV)x1°≤0.011, wherein FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, and D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens.

[0016] In one embodiment, the optical lens satisfies: -6.5≤R2 / R3≤-0.4, wherein R2 is the central curvature radius of the second side surface of the first lens, and R3 is the central curvature radius of the first side surface of the second lens.

[0017] In one embodiment, the optical lens further includes an aperture, and satisfies: 0.84≤L / TTL≤0.97, wherein TTL is the total optical length of the optical lens, and L is the spacing distance from the aperture to the imaging surface along the optical axis.

[0018] In one embodiment, the optical lens satisfies: 0.4≤R1 / R2≤1.5, wherein R2 is the central curvature radius of the second side surface of the first lens, and R1 is the central curvature radius of the first side surface of the first lens.

[0019] In one embodiment, the optical lens satisfies: 0.08≤R3 / R4≤4, wherein R3 is the central curvature radius of the first side surface of the second lens, and R4 is the central curvature radius of the second side surface of the second lens.

[0020] In one embodiment, the optical lens satisfies: -1.95≤R8 / F≤-0.2, wherein R8 is the central curvature radius of the second side surface of the fourth lens, and F is the total effective focal length of the optical lens.

[0021] In one embodiment, the optical lens satisfies: 0.17≤BFL / TTL≤0.5, wherein TTL is the total optical length of the optical lens, and BFL is the optical back focus of the optical lens.

[0022] In one embodiment, the optical lens satisfies: 0.6≤F / H≤1.1, wherein F is the total effective focal length of the optical lens, and H is the image height corresponding to the maximum field angle of the optical lens.

[0023] In one embodiment, the optical lens satisfies: 50°≤(FOV×F) / H≤70°, wherein F is the total effective focal length of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, and FOV is the maximum field of view of the optical lens.

[0024] In one embodiment, the optical lens satisfies: 1.2≤|F56 / F|, wherein F is the total effective focal length of the optical lens, and F56 is the combined focal length of the fifth lens and the sixth lens.

[0025] In one embodiment, the optical lens satisfies at least one of the following conditions: 0.2≤F4 / F≤5, 0.4≤|F5 / F6|≤1.7, 0.25≤|F2 / F|, 0.32 mm -1 ≤F / ENPD / D≤0.6mm -1 , 0.06mm -1 ≤D / H / F≤0.15mm -1, 0.001≤d34 / TTL≤0.12, 0.15≤R9 / R12≤3, 0.75≤(H / 2) / (F*tan(θ / 2))≤1.02, wherein F is the total effective focal length of the optical lens, F2 is the effective focal length of the second lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F6 is the effective focal length of the sixth lens, ENPD is the entrance pupil diameter of the optical lens, D is the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, d34 is the spacing distance from the center of the second side surface of the third lens to the center of the first side surface of the fourth lens along the optical axis, R9 is the central curvature radius of the first side surface of the fifth lens, R12 is the central curvature radius of the second side surface of the sixth lens, and θ is the radian value corresponding to the maximum field of view of the optical lens.

[0026] In one embodiment, the optical lens satisfies at least one of the following conditions: 0.0075≤(D / H / FOV)x1°≤0.01, 2.8≤|F1 / F|≤75, -5.5≤R2 / R3≤-0.65, 0.5≤R1 / R2≤1.42, 0.1≤R3 / R4≤3.55, 1.9≤TTL / F≤2.97, 0.35≤F4 / F≤4 .5, -1.8≤R8 / F≤-0.4, 0.6≤|F5 / F6|≤1.4, 0.25≤R9 / R12≤2.6, 0.185≤BFL / TTL≤0.47 , 0.45≤|F2 / F|≤30, 0.4≤|F3 / F|≤28, 0.79≤F / H≤0.95, 53°≤(FOV×F) / H≤64°, 0.36mm -1 ≤F / ENPD / D≤0.55mm -1 , 0.078mm -1 ≤D / H / F≤0.14mm -1, 1.5≤|F56 / F|≤40, 0.002≤d34 / TTL≤0.08, -5.6≤R4 / F≤-0.15, 0.135≤(d5+d6) / TTL≤0.375, 0.8≤(H / 2) / (F*tan(θ / 2))≤0.95, and the optical lens further includes a stop, and satisfies 0.86≤L / TTL≤0.95, wherein F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F6 is the effective focal length of the sixth lens, F56 is the combined focal length of the fifth lens and the sixth lens, R1 is the central curvature radius of the first side surface of the first lens, R2 is the central curvature radius of the second side surface of the first lens, and R3 is the first side of the second lens. R4 is the central curvature radius of the second side surface of the second lens, R8 is the central curvature radius of the second side surface of the fourth lens, R9 is the central curvature radius of the first side surface of the fifth lens, R12 is the central curvature radius of the second side surface of the sixth lens, BFL is the optical back focus of the optical lens, L is the spacing distance from the aperture to the imaging surface along the optical axis, ENPD is the entrance pupil diameter of the optical lens, D is the maximum light clearance diameter of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, FOV is the maximum field of view of the optical lens, θ is the radian value corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, d5 is the central thickness of the fifth lens, d6 is the central thickness of the sixth lens, and d34 is the spacing distance from the center of the second side surface of the third lens to the center of the first side surface of the fourth lens along the optical axis.

[0027] In one embodiment, the optical lens satisfies at least one of the following conditions: 0.0085≤(D / H / FOV)x1°≤0.0098, 3.6473≤|F1 / F|≤48.4109, -4.1785≤R2 / R3≤-0.9096, 0.6669≤R1 / R2≤1.3363, 0.1454≤R3 / R4≤2.2176, 2.2744≤TTL / F≤2.9434, 0.5684≤F4 / F≤3.8688, -1.6 562≤R8 / F≤-0.6007, 0.732≤|F5 / F6|≤1.2025, 0.414≤R9 / R12≤2.0078, 0.2155≤BFL / TTL≤0.4369, 0.7887≤|F 2 / F|≤18.5485, 0.6455≤|F3 / F|≤17.4495, 0.8364≤F / H≤0.9343, 55.2039°≤(FOV×F) / H≤61.6635°, 0.3922mm -1≤F / ENPD / D≤0.5074mm -1 , 0.0856mm -1 ≤D / H / F≤0.1228mm -1 , 1.9510≤|F56 / F|≤26.0824, 0.0060≤d34 / TTL≤0.0658, -3.9261≤R4 / F≤-0.4668, 0.1799≤(d5+d6) / TTL≤0.3245, 0.8241≤(H / 2) / (F*tan(θ / 2))≤0.9205, and the optical lens also includes an aperture, and satisfies 0.8771≤L / TTL≤0. 9313, where F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F6 is the effective focal length of the sixth lens, F56 is the combined focal length of the fifth lens and the sixth lens, R1 is the central curvature radius of the first side surface of the first lens, R2 is the central curvature radius of the second side surface of the first lens diameter, R3 is the central curvature radius of the first side of the second lens, R4 is the central curvature radius of the second side of the second lens, R8 is the central curvature radius of the second side of the fourth lens, R9 is the central curvature radius of the first side of the fifth lens, R12 is the central curvature radius of the second side of the sixth lens, BFL is the optical back focus of the optical lens, L is the spacing distance from the aperture to the imaging surface along the optical axis, ENPD is the entrance pupil diameter of the optical lens, D is the maximum light clearance diameter of the first side of the first lens corresponding to the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, FOV is the maximum field of view of the optical lens, θ is the radian value corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, d5 is the central thickness of the fifth lens, d6 is the central thickness of the sixth lens, and d34 is the spacing distance from the center of the second side of the third lens to the center of the first side of the fourth lens along the optical axis.

[0028] Another aspect of the present application provides an electronic device, comprising the optical lens of any one of the above embodiments and an imaging element for converting an optical image formed by the optical lens into an electrical signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, purposes and advantages of the present application will become more apparent through the following detailed description of the embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0030] Figures 1 to 18 The structural schematic diagrams of the optical lenses according to Embodiments 1 to 18 of the present application are respectively shown. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numbers refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] 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.

[0033] 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.

[0034] 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 first side is called the first side surface of the lens, the surface of each lens closest to the second side is called the second side surface of the lens, and the surface of the optical lens closest to the second side is called the second side surface of the optical lens.

[0035] It should be understood that the optical lens provided in the present application can be used for both video recording and projection. When the optical lens provided in the present application is used for a video recording lens, the "first side" referred to in this article may refer to the object side, and the "second side" may refer to the image side; when the optical lens provided in the present application is used for a projection lens or a radar transmitting lens, the "first side" referred to in this article may refer to the imaging side, and the "second side" may refer to the image source side.

[0036] 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.

[0037] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having a meaning consistent with 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.

[0038] 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.

[0039] The features, principles and other aspects of the present application are described in detail below.

[0040] In an exemplary embodiment, the optical lens includes, for example, six lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, which are arranged in sequence from the first side to the second side along the optical axis.

[0041] In an exemplary embodiment, the optical lens provided by the present application can be used as, for example, a vehicle-mounted lens, in which case the first side of the optical lens can be the object side, and the second side can be the image side. Light from the object side can be imaged on the image side. The second side of the optical lens is the imaging surface of the optical lens.

[0042] In an exemplary embodiment, the optical lens provided by the present application can be used as, for example, a projection lens or a laser radar transmitting end lens. In this case, the second side of the optical lens can be an image source side, and the first side can be an imaging side. Light from the image source side can be imaged on the imaging side. The second side surface of the optical lens is the image source surface of the optical lens.

[0043] In an exemplary embodiment, the optical lens may further include a photosensitive element disposed on the second side surface. Optionally, the photosensitive element disposed on the second side surface may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0044] In an exemplary embodiment, the first lens may have positive power, and its first side surface may be convex, and its second side surface may be concave. By making the first lens have positive power, and making its first side surface convex, and its second side surface concave, the shape of the first lens can be made gentle, and the degree of deflection of the light emitted by the first lens can be reduced, which is conducive to the smooth passage of the light, and can reduce the light energy loss at the interface, improve the relative illumination, and reduce the sensitivity of the optical lens.

[0045] In an exemplary embodiment, the first lens may have a negative optical power, and its first side surface may be a convex surface, and its second side surface may be a concave surface. The first lens has a negative optical power, which can achieve divergence of light. The first side surface of the first lens is convex, which can make the incident angle of the light smaller, which is conducive to collecting more light into the optical lens with a smaller aperture of the first lens, and realizing a large field of view of the optical lens. In an exemplary embodiment, the second lens may be meniscus-shaped, and its first side surface is concave, which can smoothly receive and further diverge the light.

[0046] In an exemplary embodiment, the second lens may have positive focal power, and its first side surface may be a concave surface, and its second side surface may be a convex surface. Making the first side surface of the second lens a concave surface can smoothly receive and further diverge the light; making the second side surface of the second lens a convex surface is conducive to properly converging the light and reducing the total optical length of the optical lens.

[0047] In an exemplary embodiment, the second lens may have a negative optical power, and its first side surface may be a concave surface, and its second side surface may be a convex surface. The second lens has a negative optical power, and its first side surface is a concave surface, and its second side surface is a convex surface, so that the light can smoothly transition to the rear light system, thereby improving the resolution of the optical lens. In an exemplary embodiment, the second lens may be in a meniscus shape, and its first side surface is a concave surface, so that it can smoothly receive and further diverge the light.

[0048] In an exemplary embodiment, an aperture for limiting the light beam may be provided between the first lens and the second lens to further improve the imaging quality of the optical lens. The aperture is conducive to converging the light entering the optical system, reducing the aperture of the rear optical system, and reducing the assembly sensitivity of the system. However, it should be noted that the position of the aperture disclosed herein is only an example and not a limitation; in alternative embodiments, the aperture may also be provided at other positions according to actual needs.

[0049] In an exemplary embodiment, the third lens may have positive focal power, and its first side surface may be convex, and its second side surface may be concave. The third lens has positive focal power, and its first side surface is convex, which can appropriately compress the light and reduce the diameter of the first side surface of the third lens; and its second side surface is concave, which can reduce the degree of deflection of the light emitted by the front lens (such as the second lens), which is conducive to smooth passage of light, reducing light energy loss at the interface, improving relative illumination, and reducing the sensitivity of the optical lens.

[0050] In an exemplary embodiment, the third lens may have positive power, and its first side surface may be a concave surface, and its second side surface may be a convex surface. The third lens has positive power, and its first side surface is concave, so that it can receive light when the first side surface of the third lens has a smaller aperture; and its second side surface is convex, so that the light can be appropriately compressed, and then the divergent light can be smoothly received and converged to reduce the aperture of the rear optical system.

[0051] In an exemplary embodiment, the third lens may have negative power, and its first side surface may be concave, and its second side surface may be concave. The third lens has negative power, and its first side surface is concave, and its second side surface is concave, which can diffuse light and make a smooth transition after receiving the light passing through the second lens, thereby making the aberration generated by the optical lens smaller and achieving high resolution of the optical lens.

[0052] In an exemplary embodiment, the third lens may have negative optical power, and its first side surface may be a concave surface, and its second side surface may be a convex surface. The third lens has negative optical power, and its first side surface is a concave surface, so that the first side surface of the third lens can smoothly receive the light passing through the second lens; and its second side surface is a convex surface, which can balance the aberration of the front optical system and improve the imaging quality of the optical lens.

[0053] In an exemplary embodiment, the fourth lens may have positive focal power, and its first side surface may be a concave surface, and its second side surface may be a convex surface. The fourth lens has positive focal power, which is conducive to light convergence and can compress the light that has a divergent trend through the front optical system. Making its first side surface a concave surface can enable the fourth lens to smoothly receive the light passing through the third lens; making its second side surface a convex surface is conducive to smooth transition of light, thereby reducing the aberration of the optical lens and improving the resolution of the optical lens.

[0054] In an exemplary embodiment, the fourth lens may have positive power, and its first side surface may be a convex surface, and its second side surface may be a convex surface. The fourth lens has positive power, and its first side surface is a convex surface, and its second side surface is a convex surface, which can compress the light that has diverged through the front optical system twice, which is conducive to compressing the light to make it converge, thereby reducing the aperture of the optical lens and realizing the miniaturization of the optical lens.

[0055] In an exemplary embodiment, the fifth lens and the sixth lens are matched with positive and negative optical powers, that is, the fifth lens with positive optical power is matched with the sixth lens with negative optical power, or the fifth lens with negative optical power is matched with the sixth lens with positive optical power, which is beneficial to correct the aberration of the center and edge light of each field of view, thereby achieving high resolution of the optical lens.

[0056] In an exemplary embodiment, the fifth lens can be glued with the sixth lens to form a glued part, which can effectively correct chromatic aberration and reduce the total length of the optical lens, making the overall structure of the optical lens more compact, realizing the miniaturization of the optical lens, and reducing the sensitivity of tolerances such as tilt / eccentricity generated by each lens and element during the assembly process. In an exemplary embodiment, the lens with positive focal power has a lower refractive index, and the lens with negative focal power has a higher refractive index (relative to the lens with positive focal power), so that the glued part is composed of lenses with positive focal power and negative focal power, that is, the combination of high and low refractive indices is conducive to the rapid transition of light passing through the front optical system, reducing the aberration of the optical lens, increasing the aperture of the diaphragm, and improving the luminous flux of the optical lens.

[0057] In an exemplary embodiment, the fifth lens may have positive focal power, and its first side surface may be convex, and its second side surface may be concave. The fifth lens has positive focal power, and its first side surface is convex, which is conducive to compressing light and reducing the total optical length of the optical lens and the aperture of the optical lens. In an exemplary embodiment, the second side surface of the fifth lens is flat, so that its second side surface is concave, and the lens shape is flat, which can reduce the degree of deflection of light emitted by the front optical system, which is conducive to smooth passage of light and reduce the sensitivity of the optical lens.

[0058] In an exemplary embodiment, the fifth lens may have positive power, and its first side surface may be convex, and its second side surface may be convex. The fifth lens has positive power, and its first side surface is convex, and its second side surface is convex, which can effectively converge the light that tends to diverge after passing through the front optical system, which is conducive to the miniaturization of the rear optical system and the high resolution of the optical lens.

[0059] In an exemplary embodiment, the fifth lens may have a negative optical power, and its first side surface may be a concave surface, and its second side surface may be a concave surface. The fifth lens has a negative optical power, and its first side surface is a concave surface, and its second side surface is a concave surface, which is conducive to the fifth lens smoothly receiving the light emitted by the fourth lens and emitting the light smoothly. In addition, in this embodiment, the fifth lens with a negative optical power can be matched with the fourth lens and the sixth lens with positive optical power, which can effectively correct the system aberration and improve the image quality of the optical lens.

[0060] In an exemplary embodiment, the sixth lens may have positive focal power, and its first side surface may be a convex surface, and its second side surface may be a convex surface. The sixth lens has positive focal power, which is conducive to light convergence. When the sixth lens has positive focal power, the fifth lens may have negative focal power. In this embodiment, the sixth lens is glued with the fifth lens, which can reduce the aberration of the optical lens, and at the same time, the light can be effectively and smoothly converged, so that the light can reach the imaging surface smoothly, and the field curvature can be further reduced, thereby improving the imaging quality of the optical lens.

[0061] In an exemplary embodiment, the sixth lens may have negative power, and its first side surface may be concave, and its second side surface may be concave. The sixth lens has positive power, and its first side surface is concave, and its second side surface is concave, which is conducive to making the sixth lens diverge light smoothly, thereby achieving a long back focus of the optical lens, and can expand the beam width of the light, and can adapt to a large image surface.

[0062] In an exemplary embodiment, the sixth lens may have a negative optical power, and its first side surface may be a convex surface, and its second side surface may be a concave surface. The sixth lens has a positive optical power, can diverge light, and its first side surface is a convex surface, which can make the incident angle of the light smaller, which is conducive to allowing more light to enter the optical lens and achieve a high light flux of the optical lens; and its second side surface is a concave surface, which can smoothly transition the light to the imaging surface and improve the resolution of the optical lens.

[0063] Figure 1 The optical lens provided by the present application can be used as a vehicle-mounted lens, for example. Figure 1 IMA represents an imaging surface, and light from an object passes through each surface S1 to S16 in sequence and is finally imaged on the imaging surface arranged on the second side, wherein an image sensor chip is arranged on the imaging surface. It should be understood that the optical lens provided in the present application can also be used as, for example, a projection lens or a laser radar transmitting end lens. In this case, Figure 1 Here, IMA represents an image source plane, and light from the image source plane passes through the surfaces S16 to S1 in sequence and is finally projected onto a projection plane (not shown) disposed on the first side.

[0064] In an exemplary embodiment, the optical lens may satisfy: 0.0065≤(D / H / FOV)x1°≤0.011, wherein FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, and D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens. By making the optical lens satisfy the above conditional formula, controlling the maximum field of view of the optical lens, the image height corresponding to the maximum field of view, and the maximum aperture of the first side of the first lens, the aperture of the entire lens can be miniaturized. Preferably, the optical lens may further satisfy: 0.0075≤(D / H / FOV)x1°≤0.01, to achieve a small aperture of the optical lens. More preferably, the optical lens may further satisfy: 0.0085≤(D / H / FOV)x1°≤0.0098, which is conducive to achieving a small aperture of the optical lens.

[0065] In an exemplary embodiment, the optical lens may satisfy: 2.5≤|F1 / F|, where F is the total effective focal length of the optical lens, and F1 is the effective focal length of the first lens. By making the optical lens satisfy the above conditional formula, the absolute value of the focal length of the first lens is controlled to be larger, which is conducive to a smooth transition of the light trend, thereby reducing the aberration of the optical lens and facilitating the realization of a small aperture of the optical lens. In an exemplary embodiment, the absolute value of the effective focal length of the first lens may be, for example, 176.2610, and the first lens whose absolute value of the effective focal length exceeds this value (for example, the absolute value of the effective focal length of the first lens is 200, 300) has almost the same effect on the light trend as the first lens at this value, so the absolute value of the effective focal length of the first lens may tend to infinity, which is conducive to a smooth transition of light and reduces the generation of aberrations, and thus in this embodiment, the value of |F1 / F| may not be set to an upper limit. Preferably, the optical lens may further satisfy: 2.8≤|F1 / F|≤75, realizing a small aperture of the optical lens. More preferably, the optical lens can further satisfy: 3.6473≤|F1 / F|≤48.4109, which is conducive to achieving a small aperture of the optical lens.

[0066] In an exemplary embodiment, the optical lens may satisfy: -6.5≤R2 / R3≤-0.4, wherein R2 is the central curvature radius of the second side of the first lens, and R3 is the central curvature radius of the first side of the second lens. In an exemplary embodiment, the second side of the first lens and the first side of the second lens are both concave, and the light can be diverged twice in succession. By making the optical lens satisfy the above conditional formula, the central curvature radius of the second side of the first lens is close to the central curvature radius of the first side of the second lens, so that the aberration between the light incident on the second lens and the light emitted by the first lens is reduced, which is conducive to achieving a smaller front port diameter, and collecting large field angle light under a smaller diameter, so that it transitions into the rear optical system, reducing the sensitivity of the optical lens. Preferably, the optical lens may further satisfy: -5.5≤R2 / R3≤-0.65, so as to achieve a small diameter and low sensitivity of the optical lens. More preferably, the optical lens may further satisfy: -4.1785≤R2 / R3≤-0.9096, so as to achieve a small diameter and low sensitivity of the optical lens. In an exemplary embodiment, the second side surface of the first lens and the first side surface of the second lens are both concave surfaces, and the optical lens simultaneously satisfies the conditions -6.5≤R2 / R3≤-0.4 (or -5.5≤R2 / R3≤-0.65, -4.1785≤R2 / R3≤-0.9096) and 2.5≤|F1 / F| (or 2.5≤|F1 / F|≤75, 3.6473≤|F1 / F|≤48.4109), and the second side surface of the first lens and the first side surface of the second side surface are concave surfaces, which is beneficial for collecting edge field light when the optical lens has a smaller aperture.

[0067] In an exemplary embodiment, the optical lens may satisfy: 0.84≤L / TTL≤0.97, wherein L is the spacing distance from the aperture to the imaging surface along the optical axis, and TTL is the total optical length of the optical lens. In an exemplary embodiment, the aperture is disposed between the first lens and the second lens. By making the optical lens satisfy the above conditional formula, the distance from the aperture to the imaging surface is controlled, which is conducive to reducing the front port diameter of the optical lens, and can collect more light with a smaller front port diameter, thereby improving the luminous flux of the optical lens. Preferably, the optical lens may further satisfy: 0.86≤L / TTL≤0.95, thereby realizing a small aperture and high luminous flux of the optical lens. More preferably, the optical lens may further satisfy: 0.8771≤L / TTL≤0.9313, thereby realizing a small aperture and high luminous flux of the optical lens.

[0068] In an exemplary embodiment, the optical lens may satisfy: 0.4≤R1 / R2≤1.5, wherein R1 is the central curvature radius of the first side of the first lens, and R2 is the central curvature radius of the second side of the first lens. By making the optical lens satisfy the above conditional formula, the central curvature radii of the first side and the second side of the first lens are controlled to be close, so that the shape of the first lens is smooth, and large-angle light can be collected with a smaller aperture, and the degree of deflection of the light emitted by the first lens can be reduced, so that the light trend is stable, thereby reducing the aberration of the optical lens while reducing the loss of light energy, thereby reducing the sensitivity of the optical lens and increasing the luminous flux. Preferably, the optical lens may further satisfy: 0.5≤R1 / R2≤1.42, so as to realize a small aperture and high luminous flux of the optical lens. More preferably, the optical lens may further satisfy: 0.6669≤R1 / R2≤1.3363, which is conducive to realizing a small aperture and high luminous flux of the optical lens. In an exemplary embodiment, while satisfying the conditional expression 0.84≤L / TTL≤0.97 (or 0.86≤L / TTL≤0.95, 0.8771≤L / TTL≤0.9313), at least any one of the following conditional expressions is satisfied, so that more light can be collected with a smaller front port diameter to further improve the luminous flux of the optical lens: 0.4≤R1 / R2≤1.5 (or 0.5≤R1 / R2≤1.42, 0.6669≤R1 / R2≤1.3363) and 2.5≤|F1 / F| (or 2.5≤|F1 / F|≤75, 3.6473≤|F1 / F|≤48.4109).

[0069] In an exemplary embodiment, the optical lens may satisfy: 0.08≤R3 / R4≤4, wherein R3 is the central curvature radius of the first side surface of the second lens, and R4 is the central curvature radius of the second side surface of the second lens. In an exemplary embodiment, the first lens and the second lens may be two oppositely disposed meniscus-shaped lenses. By making the optical lens satisfy the above conditional formula and reasonably setting the central curvature radius of the first side surface and the second side surface of the second lens, it is beneficial for the second lens to smoothly receive the light passing through the front optical system with a smaller aperture, and to make the light smoothly transition between the two sides of the second lens, thereby reducing the sensitivity of the optical lens. Preferably, the optical lens may further satisfy: 0.1≤R3 / R4≤3.55, so as to realize the small aperture and low sensitivity of the optical lens. More preferably, the optical lens may further satisfy: 0.1454≤R3 / R4≤2.2176, so as to realize the small aperture and low sensitivity of the optical lens.

[0070] In an exemplary embodiment, the optical lens may satisfy: 1.5≤TTL / F≤3.0, wherein F is the total effective focal length of the optical lens, and TTL is the total optical length of the optical lens. By making the optical lens satisfy the above conditional formula and controlling the total optical length and focal length of the optical lens, the miniaturization of the optical lens can be achieved. Preferably, the optical lens may further satisfy: 1.9≤TTL / F≤2.97, thereby achieving the miniaturization of the optical lens. More preferably, the optical lens may further satisfy: 2.2744≤TTL / F≤2.9434, thereby facilitating the miniaturization of the optical lens.

[0071] In an exemplary embodiment, the optical lens may satisfy: 0.2≤F4 / F≤5, wherein F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens. In an exemplary embodiment, the fourth lens has a positive focal power. By making the optical lens satisfy the above conditional formula, the focal length of the fourth lens is controlled to be smaller, which is conducive to effectively converging the light that is diverged as a whole after passing through the front optical system, so as to compress the rear port diameter and the total optical length of the optical lens, and realize the miniaturization of the optical lens. In an exemplary embodiment, the fourth lens cooperates with the fifth lens having a negative focal power, the sixth lens having a positive focal power, or the fourth lens cooperates with the fifth lens having a positive focal power, so that the light trend can be smoothly compressed, and the light can slowly reach the imaging surface to realize a long back focus on the basis of realizing the miniaturization of the optical lens, and at the same time, the light can be incident on the imaging surface almost vertically, so as to realize a small CRA of the optical lens. Preferably, the optical lens may further satisfy: 0.35≤F4 / F≤4.5, so as to realize the miniaturization of the optical lens. More preferably, the optical lens can further satisfy: 0.5684≤F4 / F≤3.8688, which is conducive to miniaturization of the optical lens.

[0072] In an exemplary embodiment, the optical lens may satisfy: -1.95≤R8 / F≤-0.2, wherein F is the total effective focal length of the optical lens, and R8 is the central curvature radius of the second side of the fourth lens. In an exemplary embodiment, the second side of the fourth lens may be a convex surface. By making the optical lens satisfy the above conditional formula, the central curvature radius of the second side of the fourth lens is controlled to be smaller, which is conducive to reducing the divergence tendency of the light passing through the second side of the fourth lens, so as to quickly compress the light, so as to effectively converge the light, and while being able to reduce the total optical length of the optical lens, the height at which the light enters the rear optical system is reduced, thereby reducing the aperture of the optical lens. In an exemplary embodiment, the rear optical system of the fourth lens may include a bonding component, so that the fourth lens and the bonding component are conducive to making the light reach the imaging surface smoothly, thereby realizing a long back focus of the optical lens. Preferably, the optical lens may further satisfy: -1.8≤R8 / F≤-0.4, so as to realize a small aperture and a long back focus of the optical lens. More preferably, the optical lens can further satisfy: -1.6562≤R8 / F≤-0.6007, which is conducive to achieving a small aperture and a long back focus of the optical lens.

[0073] In an exemplary embodiment, the optical lens may satisfy: 0.4≤|F5 / F6|≤1.7, wherein F5 is the effective focal length of the fifth lens, and F6 is the effective focal length of the sixth lens. In an exemplary embodiment, the fifth lens and the sixth lens may be glued together to form a glued component, and one of the fifth lens and the sixth lens has a positive focal power, and the other has a negative focal power. By making the optical lens satisfy the above conditional formula, the focal length values ​​of the fifth lens and the sixth lens with one positive and one negative focal power combined into the glued component are controlled to be close, which is conducive to correcting chromatic aberration, improving the resolution ability of the optical lens, and helping to enable light to smoothly enter the rear optical system, which is conducive to achieving a long back focus of the optical lens. Preferably, the optical lens may further satisfy: 0.6≤|F5 / F6|≤1.4, to achieve high resolution and long back focus of the optical lens. More preferably, the optical lens may further satisfy: 0.732≤|F5 / F6|≤1.2025, to achieve high resolution and long back focus of the optical lens. In an exemplary embodiment, the optical lens is made to simultaneously satisfy the conditions -1.95≤R8 / F≤-0.2 (or -1.8≤R8 / F≤-0.4, -1.6562≤R8 / F≤-0.6007) and 0.4≤|F5 / F6|≤1.7 (or 0.6≤|F5 / F6|≤1.4, 0.732≤|F5 / F6|≤1.2025), which can further enable the light to reach the imaging surface smoothly, and is more conducive to achieving a long back focus of the optical lens.

[0074] In an exemplary embodiment, the optical lens may satisfy: 0.15≤R9 / R12≤3, wherein R9 is the central curvature radius of the first side surface of the fifth lens, and R12 is the central curvature radius of the second side surface of the sixth lens. In an exemplary embodiment, the fifth lens and the sixth lens may be glued together to form a glued component. By making the optical lens satisfy the above conditional formula, the central curvature radius of the first side surface of the fifth lens and the central curvature radius of the second side surface of the sixth lens are controlled to be close in value, so that the shapes of the two sides are similar, so that the glued component can smoothly transition the light, so that the incident and outgoing light trends are close, thereby reducing the sensitivity of the optical lens, and at the same time facilitating the realization of a long back focus of the optical lens. Preferably, the optical lens may further satisfy: 0.25≤R9 / R12≤2.6, so as to realize a long back focus and low sensitivity of the optical lens. More preferably, the optical lens may further satisfy: 0.414≤R9 / R12≤2.0078, so as to realize a long back focus and low sensitivity of the optical lens.

[0075] In an exemplary embodiment, the optical lens may satisfy: 0.17≤BFL / TTL≤0.5, wherein TTL is the total optical length of the optical lens, and BFL is the optical back focus of the optical lens. By making the optical lens satisfy the above conditional formula and controlling the optical back focus and the total optical length of the optical lens, it is possible to reserve space for the installation and focusing of optical elements while meeting the special requirements for the back focus length of the optical lens, thereby avoiding interference between mechanisms. Preferably, the optical lens may further satisfy: 0.185≤BFL / TTL≤0.47, thereby achieving a long back focus of the optical lens. More preferably, the optical lens may further satisfy: 0.2155≤BFL / TTL≤0.4369, thereby facilitating the realization of a long back focus of the optical lens.

[0076] In an exemplary embodiment, at least one of the first to sixth lenses may be a spherical lens or an aspherical lens. In an exemplary embodiment, the second lens may be an aspherical lens. 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, or even all lenses use aspherical lenses. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery, 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 of the lens. The setting of an aspherical lens helps to correct system aberrations and improve resolution.

[0077] In an exemplary embodiment, the optical lens may satisfy: 0.25≤|F2 / F|, where F is the total effective focal length of the optical lens, and F2 is the effective focal length of the second lens. By making the optical lens satisfy the above conditional formula and controlling the effective focal length of the second lens, the second lens can smoothly diverge the central light, thereby reducing the aberration of the optical lens. In an exemplary embodiment, the second lens may be an aspherical lens, and by controlling the ratio of the effective focal length of the second lens to the total effective focal length of the optical lens, the edge light can be regulated and compressed so that it can smoothly enter the rear optical system, thereby improving the edge resolution quality of the optical lens. In an exemplary embodiment, the absolute value of the effective focal length of the second lens may be, for example, 124.1674, and the second lens whose absolute value of the effective focal length exceeds this value (for example, the absolute value of the effective focal length of the second lens is 200, 300) has almost the same effect on the light trend as the second lens at this value, so the absolute value of the effective focal length of the second lens can tend to infinity, which is conducive to the smooth transition of light and reduces the generation of aberrations, and thus in this embodiment, the value of |F2 / F| may not have an upper limit. Preferably, the optical lens can further satisfy: 0.45≤|F2 / F|≤30, so as to achieve high resolution of the optical lens. More preferably, the optical lens can further satisfy: 0.7887≤|F2 / F|≤18.5485, so as to achieve high resolution of the optical lens.

[0078] In an exemplary embodiment, the optical lens may satisfy: 0.25≤|F3 / F|, where F is the total effective focal length of the optical lens, and F3 is the effective focal length of the third lens. By making the optical lens satisfy the above conditional formula, the effective focal length of the third lens is large, which can smoothly transition the light, so that the light enters the rear optical system with a continuous divergent trend, reduce the aberration of the optical lens, and achieve high resolution of the optical lens; at the same time, it is also conducive to achieving a small CRA and a large image surface of the optical lens. In an exemplary embodiment, the absolute value of the effective focal length of the third lens may be, for example, 117.5345. The third lens whose absolute value of the effective focal length exceeds this value (for example, the absolute value of the effective focal length of the third lens is 200, 300) has almost the same effect on the light trend as the third lens at this value. Therefore, the absolute value of the effective focal length of the third lens may tend to infinity, which is conducive to the smooth transition of light and the reduction of aberration generation. In this embodiment, the value of |F3 / F| may not have an upper limit. Preferably, the optical lens can further satisfy: 0.4≤|F3 / F|≤28, so as to realize high resolution, small CRA, and large image surface of the optical lens. More preferably, the optical lens can further satisfy: 0.6455≤|F3 / F|≤17.4495, which is conducive to realizing high resolution, small CRA, and large image surface of the optical lens. In an exemplary embodiment, the optical lens is made to simultaneously satisfy the conditions 0.25≤|F3 / F| (or 0.4≤|F3 / F|≤28, 0.6455≤|F3 / F|≤17.4495) and 0.25≤|F2 / F| (0.45≤|F2 / F|≤30, 0.7887≤|F2 / F|≤18.5485), which can further expand the light beam and realize a large image surface of the optical lens.

[0079] In an exemplary embodiment, the optical lens may satisfy: 0.6≤F / H≤1.1, wherein F is the total effective focal length of the optical lens, and H is the image height corresponding to the maximum field angle of the optical lens. By making the optical lens satisfy the above conditional formula, the effective focal length of the entire lens and the image height corresponding to the maximum field angle are controlled within a certain range, which is conducive to improving the resolution capability of the optical lens while ensuring the large image plane imaging of the optical lens. Preferably, the optical lens may further satisfy: 0.79≤F / H≤0.95, so as to achieve high resolution and large image plane of the optical lens. More preferably, the optical lens may further satisfy: 0.8364≤F / H≤0.9343, so as to achieve high resolution and large image plane of the optical lens.

[0080] In an exemplary embodiment, the optical lens may satisfy: 50°≤(FOV×F) / H≤70°, wherein F is the total effective focal length of the optical lens, H is the image height corresponding to the maximum field angle of the optical lens, and FOV is the maximum field angle of the optical lens. By making the optical lens satisfy the above conditional formula, controlling the total effective focal length, maximum field angle of the optical lens, and image height corresponding to the maximum field angle of the optical lens, the optical lens can simultaneously satisfy telephoto, large field angle, and large image surface, and achieve an average large angular resolution. Preferably, the optical lens may further satisfy: 53°≤(FOV×F) / H≤64°, achieving telephoto, large field of view, and large image surface of the optical lens. More preferably, the optical lens may further satisfy: 55.2039°≤(FOV×F) / H≤61.6635°, which is conducive to achieving telephoto, large field of view, and large image surface of the optical lens.

[0081] In an exemplary embodiment, the optical lens may meet the following requirements: 0.32 mm -1 ≤F / ENPD / D≤0.6mm -1 , where F is the total effective focal length of the optical lens, D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, and ENPD is the entrance pupil diameter of the optical lens. By making the optical lens meet the above conditional formula, controlling the total effective focal length of the optical lens, the entrance pupil diameter, and the maximum aperture of the first side of the first lens corresponding to the maximum field of view, the small aperture of the optical lens can be achieved while meeting the requirements of small FNO and high light flux, and the miniaturization of the lens can be achieved. Preferably, the optical lens can further meet the following requirements: 0.36mm -1 ≤F / ENPD / D≤0.55mm -1 , to achieve high luminous flux and small aperture of the optical lens. More preferably, the optical lens can further meet: 0.3922mm -1 ≤F / ENPD / D≤0.5074mm -1 , which is conducive to achieving high luminous flux and small aperture of optical lenses.

[0082] In an exemplary embodiment, the optical lens may satisfy: 0.06 mm -1 ≤D / H / F≤0.15mm -1 , where F is the total effective focal length of the optical lens, D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, and H is the image height corresponding to the maximum field of view of the optical lens. By making the optical lens meet the above conditional formula, controlling the focal length of the optical lens, the image height corresponding to the maximum field of view of the optical lens, and the maximum aperture of the first side of the first lens, a large target surface and a small aperture of the optical lens can be achieved under a certain focal length condition. Preferably, the optical lens can further meet the following conditions: 0.078mm -1 ≤D / H / F≤0.14mm-1 , to achieve a small diameter of the optical lens. More preferably, the optical lens can further meet: 0.0856mm -1 ≤D / H / F≤0.1228mm -1 , which is conducive to achieving a small aperture of the optical lens.

[0083] In an exemplary embodiment, the optical lens may satisfy: 1.2≤|F56 / F|, wherein F56 is the combined focal length of the fifth lens and the sixth lens, and F is the total effective focal length of the optical lens. In an exemplary embodiment, the fifth lens and the sixth lens may be glued together to form a glued part. By making the optical lens satisfy the above conditional formula and controlling the combined focal length of the glued part composed of the fifth lens and the sixth lens, the trend of light entering the glued part may be effectively controlled to reduce the aberration caused by large-angle light and improve the imaging quality of the optical lens. In this embodiment, the value of |F56 / F| may tend to infinity so that the light converges smoothly to the imaging surface, thereby reducing the aberration caused by large-angle light and improving the imaging quality of the optical lens. Preferably, the optical lens may further satisfy: 1.5≤|F56 / F|≤40, thereby realizing the miniaturization of the optical lens. More preferably, the optical lens may further satisfy: 1.9510≤|F56 / F|≤26.0824, thereby facilitating the miniaturization of the optical lens.

[0084] In an exemplary embodiment, the optical lens may satisfy: 0.001≤d34 / TTL≤0.12, wherein TTL is the total optical length of the optical lens, and d34 is the spacing distance along the optical axis from the center of the second side of the third lens to the center of the first side of the fourth lens. By making the optical lens satisfy the above conditional formula, the spacing distance (e.g., air spacing) between the third lens and the fourth lens along the optical axis is controlled to be smaller, which is not only conducive to reducing the total optical length of the optical lens, but also allows the light passing through the front optical system to enter the fourth lens faster, reducing the degree of deflection of the outgoing light, and reducing the rear port diameter. Preferably, the optical lens may further satisfy: 0.002≤d34 / TTL≤0.08, thereby realizing the miniaturization of the optical lens. More preferably, the optical lens may further satisfy: 0.0060≤d34 / TTL≤0.0658, thereby realizing the miniaturization of the optical lens.

[0085] In an exemplary embodiment, the optical lens may satisfy: -6.5≤R4 / F≤-0.1, wherein F is the total effective focal length of the optical lens, and R4 is the central curvature radius of the second side of the second lens. In an exemplary embodiment, the second side of the second lens may be a convex surface. By making the optical lens satisfy the above conditional formula, the central curvature radius of the second side of the second lens is controlled to be smaller, which is conducive to compressing the light and reducing the total optical length of the optical lens to achieve miniaturization of the optical lens. At the same time, the divergence trend of the light can be appropriately weakened, so that the light can enter the rear optical system more smoothly, thereby improving the resolution quality of the optical lens. Preferably, the optical lens may further satisfy: -5.6≤R4 / F≤-0.15, so as to achieve miniaturization and high resolution of the optical lens. More preferably, the optical lens may further satisfy: -3.9261≤R4 / F≤-0.4668, so as to achieve miniaturization and high resolution of the optical lens.

[0086] In an exemplary embodiment, the optical lens may satisfy: 0.12≤(d5+d6) / TTL≤0.4, wherein d5 is the center thickness of the fifth lens, d6 is the center thickness of the sixth lens, and TTL is the total optical length of the optical lens. In an exemplary embodiment, the fifth lens and the sixth lens may be glued together to form a glued part. By making the optical lens satisfy the above conditional formula and controlling the ratio of the center thickness of the fifth lens and the sixth lens to the total optical length, the ability of the glued part to eliminate chromatic aberration can be improved while miniaturizing the optical lens. Preferably, the optical lens may further satisfy: 0.135≤(d5+d6) / TTL≤0.375, so as to achieve high resolution of the optical lens. More preferably, the optical lens may further satisfy: 0.1799≤(d5+d6) / TTL≤0.3245, which is conducive to achieving high resolution of the optical lens.

[0087] In an exemplary embodiment, the optical lens may satisfy: 0.75≤(H / 2) / (F*tan(θ / 2))≤1.02, wherein H is the image height corresponding to the maximum field angle of the optical lens, F is the total effective focal length of the optical lens, and θ is the radian value corresponding to the maximum field angle of the optical lens. By making the optical lens satisfy the above conditional formula, controlling the total effective focal length of the optical lens and the image height and radian value corresponding to the maximum field angle, the ratio of the actual image height of the optical lens to the ideal image height can be made close, achieving a larger average angular resolution, and thus achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 0.8≤(H / 2) / (F*tan(θ / 2))≤0.95, to achieve high resolution of the optical lens. More preferably, the optical lens may further satisfy: 0.8241≤(H / 2) / (F*tan(θ / 2))≤0.9205, which is conducive to achieving high resolution of the optical lens.

[0088] In an exemplary embodiment, as needed, the optical lens of the present application may further include a filter and / or a protective glass disposed between the sixth lens and the imaging surface, the filter may filter light with different wavelengths, and the protective glass may prevent the elements (e.g., chip) on the second side of the optical lens from being damaged.

[0089] In an exemplary embodiment, the first to sixth lenses may be glass lenses or plastic lenses. In an example form, the fourth lens and the fifth lens may be glass lenses. The present application does not specifically limit the specific number of glass lenses and plastic lenses. An optical lens made of glass can suppress the deviation of the back focus of the optical lens with temperature changes to improve the stability of the system. At the same time, the use of glass material can avoid problems such as lens imaging blur caused by high and low temperature changes in the use environment and affecting the normal use of the lens. Specifically, when focusing on temperature performance and resolution quality, the first to sixth lenses can all be glass aspherical lenses. In applications where temperature stability requirements are lower, the first to sixth lenses in the optical lens can also be made of plastic. Using plastic to make optical lenses can effectively reduce production costs. Of course, the first to eighth lenses in the optical lens can also be made of a combination of plastic and glass.

[0090] In an exemplary embodiment, the second side surface of the second lens may have a reverse curve, with a convex central portion and a concave edge portion, so that the edge light has an obvious light turning after entering the second lens, changing the trend of large-angle light, which is conducive to collecting large-angle light in a limited space.

[0091] According to the above-mentioned embodiment of the present application, the optical lens has at least one beneficial effect of small aperture, low sensitivity, high luminous flux, miniaturization, high resolution, long back focus, long focus, large field of view, low sensitivity, small CRA, and large image surface through the reasonable setting of parameters such as lens shape and optical focal length.

[0092] However, it should be understood by those skilled in the art that, without departing from the technical solution claimed in the present application, the number of lenses constituting the lens can be changed to obtain the various results and advantages described in this specification. For example, although six lenses are described as an example in the embodiment, the optical lens is not limited to including six lenses. If necessary, the optical lens may also include other numbers of lenses. The specific embodiments of the optical lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings. Example 1

[0093] The following reference Figure 1 An optical lens according to Embodiment 1 of the present application is described. Figure 1 A schematic structural diagram of an optical lens according to Example 1 of the present application is shown.

[0094] like Figure 1 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0095] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0096] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0097] The third lens L3 has positive refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0098] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0099] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0100] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0101] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0102] The optical lens may further include a stop STO (ie, S3 , not shown in the figure), and the stop STO may be disposed between the first lens L1 and the second lens L2 .

[0103] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0104] The optical lens provided in the present application can be used as, for example, a vehicle-mounted lens. In this case, Figure 1 IMA represents the imaging surface, and the light from the object passes through the surfaces S1 to S16 in sequence and is finally imaged on the imaging surface IMA disposed on the second side, wherein an image sensor chip is disposed on the imaging surface. It should be understood that the optical lens provided in the present application can also be used as, for example, a projection lens or a laser radar transmitting end lens. In this case, Figure 1 Here, IMA represents an image source plane, and light from the image source plane passes through the surfaces S16 to S1 in sequence and is finally projected onto a projection plane (not shown) disposed on the first side.

[0105] Table 1 shows the curvature radius R, thickness / distance, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 1.

[0106] Table 1

[0107]

[0108] In Embodiment 1, the first side surface S4 and the second side surface S5 of the second lens L2 may be aspherical surfaces, and the surface shape of each aspherical lens may be defined by, but not limited to, the following aspherical surface formula:

[0109] (1)

[0110] Wherein, 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 (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 aspherical 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 aspherical mirror surface S4 and S5 in Example 1.

[0111] Table 2

[0112] Example 2

[0113] The following reference Figure 2 The optical lens according to Embodiment 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 2 A schematic structural diagram of an optical lens according to Embodiment 2 of the present application is shown.

[0114] like Figure 2 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0115] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0116] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0117] The third lens L3 has positive refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0118] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0119] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0120] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0121] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0122] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0123] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0124] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14.

[0125] Table 3 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 2. Table 4 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 2, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0126] Table 3

[0127]

[0128] Table 4

[0129] Example 3

[0130] The following reference Figure 3 The optical lens according to Embodiment 3 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 3 A schematic structural diagram of an optical lens according to Example 3 of the present application is shown.

[0131] like Figure 3 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0132] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0133] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0134] The third lens L3 has negative refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0135] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0136] The fifth lens L5 has positive refractive power, and its first side surface S10 is convex, and its second side surface S11 is concave.

[0137] The sixth lens L6 has negative refractive power, and its first side surface S11 is convex, and its second side surface S12 is concave.

[0138] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0139] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0140] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0141] Table 5 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 3. Table 6 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surface S4 and S5 of each aspheric lens second lens L2 that can be used in Example 3, wherein each aspheric surface shape can be defined by formula (1) given in the above Example 1.

[0142] Table 5

[0143]

[0144] Table 6

[0145] Example 4

[0146] The following reference Figure 4 The optical lens according to Embodiment 4 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 4 A schematic structural diagram of an optical lens according to Example 4 of the present application is shown.

[0147] like Figure 4 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0148] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0149] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0150] The third lens L3 has negative refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0151] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0152] The fifth lens L5 has positive refractive power, and its first side surface S10 is convex, and its second side surface S11 is concave.

[0153] The sixth lens L6 has negative refractive power, and its first side surface S11 is convex, and its second side surface S12 is concave.

[0154] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0155] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0156] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0157] Table 7 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 4. Table 8 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 4, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0158] Table 7

[0159]

[0160] Table 8

[0161] Example 5

[0162] The following reference Figure 5 The optical lens according to Embodiment 5 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 5A schematic structural diagram of an optical lens according to Example 5 of the present application is shown.

[0163] like Figure 5 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0164] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0165] The second lens L2 has negative refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0166] The third lens L3 has positive refractive power, a first side surface S6 of which is a concave surface, and a second side surface S7 of which is a convex surface.

[0167] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0168] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0169] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0170] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0171] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0172] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0173] Table 9 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 5. Table 10 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 5, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0174] Table 9

[0175]

[0176] Table 10

[0177] Example 6

[0178] The following reference Figure 6 The optical lens according to Embodiment 6 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 6 A schematic structural diagram of an optical lens according to Example 6 of the present application is shown.

[0179] like Figure 6 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0180] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0181] The second lens L2 has negative refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0182] The third lens L3 has positive refractive power, a first side surface S6 of which is a concave surface, and a second side surface S7 of which is a convex surface.

[0183] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0184] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0185] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0186] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented member, and the second side surface S5 of the second lens L2 has inverse curvature.

[0187] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0188] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0189] Table 11 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 6. Table 12 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 6, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0190] Table 11

[0191]

[0192] Table 12

[0193] Example 7

[0194] The following reference Figure 7 An optical lens according to Embodiment 7 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 7 A schematic structural diagram of an optical lens according to Example 7 of the present application is shown.

[0195] like Figure 7 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0196] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0197] The second lens L2 has negative refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0198] The third lens L3 has positive refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0199] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0200] The fifth lens L5 has positive refractive power, and its first side surface S10 is convex, and its second side surface S11 is concave.

[0201] The sixth lens L6 has negative refractive power, and its first side surface S11 is convex, and its second side surface S12 is concave.

[0202] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0203] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0204] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0205] Table 13 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 7. Table 14 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 7, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0206] Table 13

[0207]

[0208] Table 14

[0209] Example 8

[0210] The following reference Figure 8 The optical lens according to Embodiment 8 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 8 A schematic structural diagram of an optical lens according to Example 8 of the present application is shown.

[0211] like Figure 8 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0212] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0213] The second lens L2 has negative refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0214] The third lens L3 has positive refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0215] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0216] The fifth lens L5 has positive refractive power, and its first side surface S10 is convex, and its second side surface S11 is concave.

[0217] The sixth lens L6 has negative refractive power, and its first side surface S11 is convex, and its second side surface S12 is concave.

[0218] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0219] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0220] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0221] Table 15 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 8. Table 16 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 8, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0222] Table 15

[0223]

[0224] Table 16

[0225] Example 9

[0226] The following reference Fig. 9 The optical lens according to Embodiment 9 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig. 9 A schematic structural diagram of an optical lens according to Example 9 of the present application is shown.

[0227] like Fig. 9 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0228] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0229] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0230] The third lens L3 has negative refractive power, and its first side surface S6 is a concave surface, and its second side surface S7 is a concave surface.

[0231] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0232] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0233] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0234] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0235] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0236] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0237] Table 17 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 9. Table 18 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 9, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0238] Table 17

[0239]

[0240] Table 18

[0241] Example 10

[0242] The following reference Fig.10 The optical lens according to Embodiment 10 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.10 A schematic structural diagram of an optical lens according to Example 10 of the present application is shown.

[0243] like Fig.10 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0244] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0245] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0246] The third lens L3 has negative refractive power, and its first side surface S6 is a concave surface, and its second side surface S7 is a concave surface.

[0247] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0248] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0249] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0250] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0251] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0252] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0253] Table 19 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 10. Table 20 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 10, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0254] Table 19

[0255]

[0256] Table 20

[0257] Embodiment 11

[0258] The following reference Fig.11 The optical lens according to Embodiment 11 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.11A schematic structural diagram of an optical lens according to Example 11 of the present application is shown.

[0259] like Fig.11 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0260] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0261] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0262] The third lens L3 has negative refractive power, and its first side surface S6 is concave, and its second side surface S7 is convex.

[0263] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0264] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0265] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0266] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0267] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0268] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0269] Table 21 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 11. Table 22 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 11, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0270] Table 21

[0271]

[0272] Table 22

[0273] Example 12

[0274] The following reference Fig.12 The optical lens according to Embodiment 12 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.12 A schematic structural diagram of an optical lens according to Example 12 of the present application is shown.

[0275] like Fig.12 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0276] The first lens L1 has positive refractive power, a first side surface S1 of the first lens L1 is a convex surface, and a second side surface S2 of the first lens L1 is a concave surface.

[0277] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0278] The third lens L3 has negative refractive power, and its first side surface S6 is concave, and its second side surface S7 is convex.

[0279] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0280] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0281] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0282] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0283] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0284] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0285] Table 23 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 12. Table 24 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 12, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0286] Table 23

[0287]

[0288] Table 24

[0289] Embodiment 13

[0290] The following reference Fig.13 The optical lens according to Embodiment 13 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.13 A schematic structural diagram of an optical lens according to Example 13 of the present application is shown.

[0291] like Fig.13 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0292] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0293] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0294] The third lens L3 has negative refractive power, and its first side surface S6 is a concave surface, and its second side surface S7 is a concave surface.

[0295] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0296] The fifth lens L5 has negative refractive power, and its first side surface S10 is concave, and its second side surface S11 is concave.

[0297] The sixth lens L6 has positive refractive power, and its first side surface S11 is a convex surface, and its second side surface S12 is a convex surface.

[0298] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0299] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0300] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0301] Table 25 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 13. Table 26 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 13, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0302] Table 25

[0303]

[0304] Table 26

[0305] Embodiment 14

[0306] The following reference Fig.14 The optical lens according to Embodiment 14 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.14 A schematic structural diagram of an optical lens according to Example 14 of the present application is shown.

[0307] like Fig.14 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0308] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0309] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0310] The third lens L3 has negative refractive power, and its first side surface S6 is a concave surface, and its second side surface S7 is a concave surface.

[0311] The fourth lens L4 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0312] The fifth lens L5 has negative refractive power, and its first side surface S10 is concave, and its second side surface S11 is concave.

[0313] The sixth lens L6 has positive refractive power, and its first side surface S11 is a convex surface, and its second side surface S12 is a convex surface.

[0314] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0315] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0316] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0317] Table 27 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 14. Table 28 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 14, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0318] Table 27

[0319]

[0320] Table 28

[0321] Embodiment 15

[0322] The following reference Fig.15 The optical lens according to Embodiment 15 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.15 A schematic structural diagram of an optical lens according to Example 15 of the present application is shown.

[0323] like Fig.15 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0324] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0325] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0326] The third lens L3 has negative refractive power, and its first side surface S6 is concave, and its second side surface S7 is convex.

[0327] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0328] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0329] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0330] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0331] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0332] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0333] Table 29 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 15. Table 30 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 15, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0334] Table 29

[0335]

[0336] Table 30

[0337] Example 16

[0338] The following reference Fig.16 The optical lens according to Embodiment 16 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.16 A schematic structural diagram of an optical lens according to Example 16 of the present application is shown.

[0339] like Fig.16 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0340] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0341] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0342] The third lens L3 has negative refractive power, and its first side surface S6 is concave, and its second side surface S7 is convex.

[0343] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0344] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0345] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0346] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0347] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0348] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0349] Table 31 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 16. Table 32 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 16, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0350] Table 31

[0351]

[0352] Table 32

[0353] Embodiment 17

[0354] The following reference Fig.17 An optical lens according to Embodiment 17 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.17A schematic structural diagram of an optical lens according to Example 17 of the present application is shown.

[0355] like Fig.17 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0356] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0357] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0358] The third lens L3 has positive refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0359] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0360] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0361] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0362] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0363] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0364] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0365] Table 33 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 17. Table 34 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 17, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0366] Table 33

[0367]

[0368] Table 34

[0369] Embodiment 18

[0370] The following reference Fig.18 The optical lens according to Embodiment 18 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.18 A schematic structural diagram of an optical lens according to Example 18 of the present application is shown.

[0371] like Fig.18 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6 in sequence from the first side to the second side along the optical axis.

[0372] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0373] The second lens L2 has positive refractive power, a first side surface S4 thereof is a concave surface, and a second side surface S5 thereof is a convex surface.

[0374] The third lens L3 has positive refractive power, and its first side surface S6 is convex, and its second side surface S7 is concave.

[0375] The fourth lens L4 has positive refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0376] The fifth lens L5 has positive refractive power, and its first side surface S10 is a convex surface, and its second side surface S11 is a convex surface.

[0377] The sixth lens L6 has negative refractive power, and its first side surface S11 is concave, and its second side surface S12 is concave.

[0378] The fifth lens L5 and the sixth lens L6 are cemented together to form a cemented component.

[0379] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0380] Optionally, the optical lens may further include a filter having a first side surface S13 and a second side surface S14, and a protective glass having a first side surface S15 and a second side surface S16.

[0381] Table 35 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 18. Table 36 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric mirror surfaces S4 and S5 of the aspheric lens second lens L2 that can be used in Example 18, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0382] Table 35

[0383]

[0384] Table 36

[0385]

[0386] The optical lenses of Examples 1 to 18 of the present application can achieve a high-resolution imaging effect of 3M (3 million) pixels, and can be small in size and small in front port diameter. For example, the maximum light-throughput diameter of the first side surface of the first lens can be less than 5 mm, and high light throughput can be achieved, and its Fno value can be less than or equal to 2.0.

[0387] In summary, Examples 1 to 18 respectively satisfy the relationships shown in Table 37-1 and Table 37-2. In Table 37-1 and Table 37-2, the units of F, ENPD, TTL, BFL, H, BFL, F1~F6, F56, D, and L are millimeters (mm), the unit of FOV is degrees (°), and the unit of θ is radians (rad).

[0388] Table 37-1

[0389]

[0390] Table 37-2

[0391]

[0392] The present application also provides an electronic device, which may include an optical lens according to the above-mentioned embodiment of the present application and an imaging element for converting an optical image formed by the optical lens into an electrical signal. The electronic device may be an independent electronic device such as a detection distance camera, or an imaging module integrated in a device such as a detection distance device. In addition, the electronic device may also be an independent imaging device such as a vehicle-mounted camera, or an imaging module integrated in a driving assistance system such as a vehicle-mounted camera.

[0393] 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 to form a technical solution.

Claims

1. An optical lens, characterized in that: The optical lens includes, in sequence from the first side to the second side along the optical axis: A first lens having optical power, wherein the first side surface is convex and the second side surface is concave; a second lens having optical power, wherein the first side surface is concave and the second side surface is convex; a third lens having optical power; a fourth lens element having positive refractive power, wherein the second side surface of the fourth lens element is convex; a fifth lens having optical power; and a sixth lens having optical power; Wherein, at least one of the second lens and the third lens has positive optical power; one of the fifth lens and the sixth lens has positive optical power, and the other has negative optical power; the number of lenses with optical power in the optical lens is six, and the optical lens satisfies: 0.25≤|F3 / F|, -6.5≤R4 / F≤-0.1, 2.5≤|F1 / F|, 1.5≤TTL / F≤3.0, 0.12≤(d5+d6) / TTL≤0.4, Among them, F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F3 is the effective focal length of the third lens, R4 is the central curvature radius of the second side surface of the second lens, TTL is the total optical length of the optical lens, d5 is the central thickness of the fifth lens, and d6 is the central thickness of the sixth lens.

2. The optical lens according to claim 1, characterized in that: The first lens has positive or negative refractive power.

3. The optical lens according to claim 1, characterized in that: The second lens has positive or negative refractive power.

4. The optical lens according to claim 1, characterized in that: The third lens has positive power, and its first side surface is convex and its second side surface is concave, or its first side surface is concave and its second side surface is convex; Or the third lens has negative optical power, and its first side surface is concave, and its second side surface is concave or convex.

5. The optical lens according to claim 1, characterized in that: The first side surface of the fourth lens is a concave surface or a convex surface.

6. The optical lens according to claim 1, characterized in that: The fifth lens has positive power, a first side surface is convex, and a second side surface is convex or concave; Or the fifth lens has negative optical power, and its first side surface is concave, and its second side surface is concave.

7. The optical lens according to claim 1, characterized in that: The sixth lens has positive power, a first side surface is convex, and a second side surface is convex; Or the sixth lens has negative optical power, its first side surface is concave or convex, and its second side surface is concave.

8. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.0065≤(D / H / FOV)x1°≤0.011, Among them, FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, and D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens.

9. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: -6.5≤R2 / R3≤-0.4, Wherein, R2 is the central curvature radius of the second side surface of the first lens, and R3 is the central curvature radius of the first side surface of the second lens.

10. The optical lens according to claim 1, characterized in that: The optical lens further includes a stop and satisfies: 0.84≤L / TTL≤0.97, Wherein, TTL is the total optical length of the optical lens, and L is the spacing distance from the aperture to the imaging surface along the optical axis.

11. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.4≤R1 / R2≤1.5, Wherein, R2 is the central curvature radius of the second side surface of the first lens, and R1 is the central curvature radius of the first side surface of the first lens.

12. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.08≤R3 / R4≤4, Wherein, R3 is the central curvature radius of the first side surface of the second lens, and R4 is the central curvature radius of the second side surface of the second lens.

13. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: -1.95≤R8 / F≤-0.2, Wherein, R8 is the central curvature radius of the second side surface of the fourth lens, and F is the total effective focal length of the optical lens.

14. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.17≤BFL / TTL≤0.5, Wherein, TTL is the total optical length of the optical lens, and BFL is the optical back focus of the optical lens.

15. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.6≤F / H≤1.1, Wherein, F is the total effective focal length of the optical lens, and H is the image height corresponding to the maximum field angle of the optical lens.

16. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 50°≤(FOV×F) / H≤70°, Among them, F is the total effective focal length of the optical lens, H is the image height corresponding to the maximum field of view angle of the optical lens, and FOV is the maximum field of view angle of the optical lens.

17. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 1.2≤|F56 / F|, Wherein, F is the total effective focal length of the optical lens, and F56 is the combined focal length of the fifth lens and the sixth lens.

18. The optical lens according to claim 1, characterized in that: The optical lens meets at least one of the following conditions: 0.2≤F4 / F≤5,0.4≤|F5 / F6|≤1.7,0.25≤|F2 / F|,0.32mm -1 ≤F / ENPD / D≤0.6mm -1 ,0.06mm -1 ≤D / H / F≤0.15mm -1 ,0.001≤d34 / TTL≤0.12,0.15≤R9 / R12≤3,0.75≤(H / 2) / (F*tan(θ / 2))≤1.02, Among them, F is the total effective focal length of the optical lens, F2 is the effective focal length of the second lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F6 is the effective focal length of the sixth lens, ENPD is the entrance pupil diameter of the optical lens, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, d34 is the spacing distance from the center of the second side surface of the third lens to the center of the first side surface of the fourth lens along the optical axis, R9 is the central curvature radius of the first side surface of the fifth lens, R12 is the central curvature radius of the second side surface of the sixth lens, and θ is the radian value corresponding to the maximum field of view of the optical lens.

19. The optical lens according to claim 1, characterized in that: The optical lens meets at least one of the following conditions: 0.0075≤(D / H / FOV)x1°≤0.01, 2.8≤|F1 / F|≤75, -5.5≤R2 / R3≤-0.65, 0.5≤R1 / R2≤1.42, 0.1≤R3 / R4≤3.55, 1.9≤TTL / F≤2.97, 0.35≤F4 / F≤4.5, -1.8≤R8 / F ≤-0.4, 0.6≤|F5 / F6|≤1.4, 0.25≤R9 / R12≤2.6, 0.185≤BFL / TTL≤0.47, 0.45≤ |F2 / F|≤30,0.4≤|F3 / F|≤28,0.79≤F / H≤0.95,53°≤(FOV×F) / H≤64°,0.36mm -1 ≤F / ENPD / D≤0.55mm -1 , 0.078mm -1 ≤D / H / F≤0.14mm -1 , 1.5≤|F56 / F|≤40, 0.002≤d34 / TTL≤0.08, -5.6≤R4 / F≤-0.15, 0.135≤(d5+d6) / TTL≤0.375, 0.8≤(H / 2) / (F*tan(θ / 2))≤0.95, and the optical lens further includes a stop, and satisfies 0.86≤L / TTL≤0.95, Wherein, F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F6 is the effective focal length of the sixth lens, F56 is the combined focal length of the fifth lens and the sixth lens, R1 is the central curvature radius of the first side surface of the first lens, R2 is the central curvature radius of the second side surface of the first lens, R3 is the central curvature radius of the first side surface of the second lens, R4 is the central curvature radius of the second side surface of the second lens, R8 is the central curvature radius of the second side surface of the fourth lens, and R9 is the central curvature of the first side surface of the fifth lens. radius, R12 is the central curvature radius of the second side surface of the sixth lens, BFL is the optical back focus of the optical lens, L is the spacing distance from the aperture to the imaging plane along the optical axis, ENPD is the entrance pupil diameter of the optical lens, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, FOV is the maximum field of view of the optical lens, θ is the radian value corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, d5 is the central thickness of the fifth lens, d6 is the central thickness of the sixth lens, and d34 is the spacing distance from the center of the second side surface of the third lens to the center of the first side surface of the fourth lens along the optical axis.

20. The optical lens according to claim 1, characterized in that: The optical lens meets at least one of the following conditions: 0.0085≤(D / H / FOV)x1°≤0.0098, 3.6473≤|F1 / F|≤48.4109, -4.1785≤R2 / R3≤-0.9096, 0.6669≤R1 / R2 ≤1.3363, 0.1454≤R3 / R4≤2.2176, 2.2744≤TTL / F≤2.9434, 0.5684≤F4 / F≤3.8688, -1.6562≤R8 / F≤-0. 6007, 0.732≤|F5 / F6|≤1.2025, 0.414≤R9 / R12≤2.0078, 0.2155≤BFL / TTL≤0.4369, 0.7887≤|F2 / F|≤1 8.5485, 0.6455≤|F3 / F|≤17.4495, 0.8364≤F / H≤0.9343, 55.2039°≤(FOV×F) / H≤61.6635°, 0.3922mm -1 ≤F / ENPD / D≤0.5074mm -1 , 0.0856mm -1 ≤D / H / F≤0.1228mm -1 , 1.9510≤|F56 / F|≤26.0824, 0.0060≤d34 / TTL≤0.0658, -3.9261≤R4 / F≤-0.4668, 0.1799≤(d5+d6) / TTL≤0.3245, 0.8241≤(H / 2) / (F*tan(θ / 2))≤0.9205, and the optical lens further includes a stop, and satisfies 0.8771≤L / TTL≤0.9313, Wherein, F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F6 is the effective focal length of the sixth lens, F56 is the combined focal length of the fifth lens and the sixth lens, R1 is the central curvature radius of the first side surface of the first lens, R2 is the central curvature radius of the second side surface of the first lens, R3 is the central curvature radius of the first side surface of the second lens, R4 is the central curvature radius of the second side surface of the second lens, R8 is the central curvature radius of the second side surface of the fourth lens, and R9 is the central curvature of the first side surface of the fifth lens. radius, R12 is the central curvature radius of the second side surface of the sixth lens, BFL is the optical back focus of the optical lens, L is the spacing distance from the aperture to the imaging plane along the optical axis, ENPD is the entrance pupil diameter of the optical lens, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, FOV is the maximum field of view of the optical lens, θ is the radian value corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, d5 is the central thickness of the fifth lens, d6 is the central thickness of the sixth lens, and d34 is the spacing distance from the center of the second side surface of the third lens to the center of the first side surface of the fourth lens along the optical axis.

21. An electronic device, characterized in that: The invention comprises the optical lens according to any one of claims 1 to 20 and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

Images