Optical lenses and electronic equipment

Abstract

The present application discloses an optical lens and an electronic device. The optical lens includes five lenses with optical power from the first side to the second side along the optical axis: a first lens with negative optical power, the first side is concave and the second side is concave; a second lens with optical power; a third lens with positive optical power, the first side is convex; a fourth lens with optical power; a fifth lens with the opposite optical power to the fourth lens; and the following conditions are met: 1.85≤|F2 / F|≤65, 0.15≤(d41+d51) / TTL≤0.38, 70°≤(FOV×F) / H≤95°, ‑13≤R11 / R12≤‑3.5, 0. 08≤d11 / d31≤0.25, ‑0.82≤(1 / F1+1 / F2) / (1 / F)≤‑0.35, F is the total effective focal length of the optical lens, F1 and F2 are the effective focal lengths of the first and second lenses respectively, d11, d31, d41 and d51 are the center thicknesses of the first, third, fourth and fifth lenses respectively, TTL and FOV are the total optical length and maximum field of view of the optical lens respectively, H is the image height corresponding to the maximum field of view angle, and R11 and R12 are the curvature radii of the first and second sides of the first lens respectively.

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 related technologies, especially those used in vehicles, cannot meet the following market requirements:

[0003] 1) Considering the aesthetics of the product, automobile manufacturers usually install the exterior lenses in concealed locations, so the lens size must be small. However, it is difficult for related technologies to meet the high-resolution requirements of the lens while reducing the lens size. 2) It cannot meet the requirements of the front-view camera, driving assistance system and unmanned driving markets for lenses that require miniaturization, large field of view and long focal length. 3) It cannot meet the requirements of the front-view camera, driving assistance system and unmanned driving markets for lenses that require high-resolution capabilities, making it difficult for the lens to cooperate with the development of chips and be used in automotive assisted driving systems.

[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, large field of view, and telephoto. 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 negative optical power, whose first side surface is concave and the second side surface is concave; a second lens with optical power; a third lens with positive optical power, whose first side surface is convex; a fourth lens with optical power; and a fifth lens with optical power; one of the fourth lens and the fifth lens has positive optical power, and the other has negative optical power. The optical lens has five lenses with optical power, and the optical lens satisfies: 1.85≤|F2 / F|≤65, 0.15≤(d41+d51) / TTL≤0.38, 70°≤(FOV×F) / H≤95°, -13≤R11 / R12≤-3.5, 0.08≤d11 / d31≤0.25 and -0.82≤(1 / F1+1 / F2) / (1 / F)≤-0.35, wherein F is the total effective focal length of the optical lens. distance, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, d41 is the center thickness of the fourth lens, d51 is the center thickness of the fifth 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, FOV is the maximum field of view of the optical lens, R11 is the curvature radius of the first side surface of the first lens, R12 is the curvature radius of the second side surface of the first lens, d11 is the center thickness of the first lens, and d31 is the center thickness of the third lens.

[0006] The optical lens according to the embodiment of the present application includes five lenses with optical power, which are a first lens, a second lens, a third lens, a fourth lens and a fifth 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 with negative optical power is concave, and the second side surface is concave; the first side surface of the third lens with positive optical power is convex; and one of the fourth lens and the fifth lens has positive optical power, and the other has negative optical power, and the optical lens is controlled at the same time. The lens satisfies 1.85≤|F2 / F|≤65, 0.15≤(d41+d51) / TTL≤0.38, 70°≤(FOV×F) / H≤95°, -13≤R11 / R12≤-3.5, 0.08≤d11 / d31≤0.25 and -0.82≤(1 / F1+1 / F2) / (1 / F)≤-0.35, which can enable the optical lens to achieve at least one of high resolution, miniaturization, large field of view, telephoto, and low sensitivity.

[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 negative optical power, whose first side is concave and whose second side is concave; a second lens with optical power; a third lens with positive optical power, whose first side is convex; a fourth lens with optical power; and a fifth lens with optical power; one of the fourth lens and the fifth lens has positive optical power, and the other has negative optical power. The number of lenses with optical power in the optical lens is five, and the optical lens satisfies: 0.015≤d22 / TTL≤0.24, wherein d22 is the spacing distance between the second lens and the third lens along the optical axis, and TTL is the total optical length 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 negative optical power, whose first side is concave and whose second side is concave; a second lens with optical power; a third lens with positive optical power, whose first side is convex; a fourth lens with optical power; and a fifth lens with optical power; one of the fourth lens and the fifth lens has positive optical power, and the other has negative optical power. The number of lenses with optical power in the optical lens is five, and the optical lens satisfies: 0.14≤d31 / TTL≤0.32, 0.8≤R31 / F≤3, 0.8≤F3 / F≤3, wherein TTL is the total optical length of the optical lens, d31 is the center thickness of the third lens, F is the total effective focal length of the optical lens, R31 is the radius of curvature of the first side of the third lens, F is the total effective focal length of the optical lens, and F3 is the effective focal length of the third lens.

[0009] In one embodiment, the second lens has positive optical power, its first side surface is concave and its second side surface is convex, or its first side surface is convex and its second side surface is concave; or the second lens has negative optical power, its first side surface is concave and its second side surface is convex.

[0010] In one embodiment, the second side surface of the third lens is a convex surface or a concave surface.

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

[0012] 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 convex.

[0013] In one embodiment, the optical lens satisfies: 4≤TTL / F≤6.5, wherein TTL is the total optical length of the optical lens, and F is the total effective focal length of the optical lens.

[0014] In one embodiment, the optical lens satisfies: 0.08≤BFL / TTL≤0.22, wherein TTL is the total optical length of the optical lens, and BFL is the optical back focus of the optical lens.

[0015] In one embodiment, the optical lens satisfies: 0.32≤(H / 2) / (F*tan(θ / 2))≤0.5, wherein 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 θ is the radian value corresponding to the maximum field of view angle of the optical lens.

[0016] In one embodiment, the optical lens satisfies: -0.65≤F1 / |F2|≤-0.01, wherein F1 is the effective focal length of the first lens, and F2 is the effective focal length of the second lens.

[0017] In one embodiment, the optical lens satisfies: -12≤R11 / F≤-3.8, wherein F is the total effective focal length of the optical lens, and R11 is the radius of curvature of the first side surface of the first lens.

[0018] In one embodiment, the optical lens satisfies: -2.4≤F1 / F≤-0.6, wherein F1 is the effective focal length of the first lens, and F is the total effective focal length of the optical lens.

[0019] In one embodiment, the optical lens satisfies: -13≤(R11-d11) / R12≤-4, wherein R11 is the radius of curvature of the first side surface of the first lens, R12 is the radius of curvature of the second side surface of the first lens, and d11 is the center thickness of the first lens.

[0020] In one embodiment, the optical lens satisfies: 0.14≤d31 / TTL≤0.32, wherein TTL is the total optical length of the optical lens, and d31 is the center thickness of the third lens.

[0021] In one embodiment, the optical lens satisfies: 0.8≤R31 / F≤3, wherein F is the total effective focal length of the optical lens, and R31 is the radius of curvature of the first side surface of the third lens.

[0022] In one embodiment, the optical lens satisfies: 0.8≤F3 / F≤3, wherein F is the total effective focal length of the optical lens, and F3 is the effective focal length of the third lens.

[0023] In one embodiment, the optical lens satisfies: -1.5≤F1 / F3≤-0.4, wherein F1 is the effective focal length of the first lens, and F3 is the effective focal length of the third lens.

[0024] In one embodiment, the optical lens satisfies: -1.2≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.4, wherein 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, and F45 is the combined focal length of the fourth lens and the fifth lens.

[0025] In one embodiment, the optical lens satisfies: 2.5≤|F45 / F|, wherein F45 is the combined focal length of the fourth lens and the fifth lens, and F is the total effective focal length of the optical lens.

[0026] In one embodiment, the optical lens satisfies: 0.45≤|F5 / F|≤3, wherein F is the total effective focal length of the optical lens, and F5 is the effective focal length of the fifth lens.

[0027] In one embodiment, the optical lens satisfies at least one of the following conditions: 1.8≤TTL / DMAX≤3.6, 0.005≤D / H / FOV×1°≤0.02, 0.12 mm -1 ≤F / ENPD / D≤0.3mm -1, -1.2≤SAG11 / d11≤-0.05, 0.055≤d21 / TTL≤0.24, 0.015≤d22 / TTL≤0.24, -18≤F12 / F≤-1.0, 0.5≤|F4 / F5|≤2.2, 0.7≤D52 / H≤1.5, d42 / TTL≤0.008, 13≤|R52 / SAG52|, 1.5≤|θ0| / |θ1|≤30, and the optical lens further includes an aperture and satisfies: 0.8≤DST / F≤1.85, wherein TTL is the total optical length of the optical lens, DMAX is the maximum value of the maximum light clearance diameters of the sides of all lenses corresponding to the maximum field of view 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, and FOV is the maximum field of view of the optical lens Field angle, F is the total effective focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the effective aperture of the aperture, SAG11 is the sagitta of the first side surface of the first lens, d11 is the center thickness of the first lens, d21 is the center thickness of the second lens, d22 is the spacing distance between the second lens and the third lens along the optical axis, F12 is the combined focal length of the first lens and the second lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, D52 is the maximum clear aperture of the second side surface of the fifth lens corresponding to the maximum field angle of the optical lens, d42 is the spacing distance between the fourth lens and the fifth lens along the optical axis, R52 is the central curvature radius of the second side surface of the fifth lens, SAG52 is the sagitta of the second side surface of the fifth lens, θ0 is the opening angle of the edge of the second side surface of the fifth lens, and θ1 is the opening angle at the half-aperture position of the second side surface of the fifth lens.

[0028] In one embodiment, the optical lens satisfies at least one of the following conditions: 75°≤(FOV×F) / H≤90°, -11.2≤R11 / F≤-4.5, 5.4≤TTL / F≤6.2, 2.25≤TTL / DMAX≤3.6, 0.009≤D / H / FOV×1°≤0.015, 0.1≤BFL / TTL≤0.19, 0.16≤d31 / TTL≤0.3, 1≤R31 / F≤2.65, 1.2≤F3 / F≤2.5, 0.15 mm -1 ≤F / ENPD / D≤0.25mm -1, -12.5≤R11 / R12≤-4, -1.85≤F1 / F≤-0.9, -12.6≤(R11-d11) / R12≤-4.5, -0.8≤SAG11 / d11≤-0.15, 0.39≤(H / 2) / (F*tan(θ / 2))≤0.45, -0.48≤ F1 / |F2|≤-0.025, 0.075≤d21 / TTL≤0.2, 0.02≤d22 / TTL≤0.2, 2.2≤|F2 / F|≤45, -15≤F12 / F≤-1.2, 0.1≤d11 / d31≤0.225, 0.7≤|F4 / F5|≤1.95, 2 .8≤|F45 / F|≤90, 0.65≤|F5 / F|≤2.75, 0.85≤D52 / H≤1.25, d42 / TTL≤0.005, -1.1≤F1 / F3≤-0.58, -0.78≤(1 / F1+1 / F2) / (1 / F)≤-0.4, -1≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.6, 13≤|R52 / SAG52|≤300, 1.85≤|θ0| / |θ1|≤20, 0.185≤(d41+d51) / TTL≤0.33, and the optical lens also includes an aperture and satisfies: 1.0≤DST / F≤1.5, where TTL is the total optical length of the optical lens, DMAX is the maximum value of the maximum aperture of the sides of all lenses corresponding to the maximum field of view 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, 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, F is the total effective focal length of the optical lens, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the effective aperture of the diaphragm, SAG11 is the sag height of the first side of the first lens, d11 is the center thickness of the first lens, d21 is the center thickness of the second lens, d22 is the spacing distance between the second lens and the third lens along the optical axis, d31 is the center thickness of the third lens, d41 is the center thickness of the fourth lens, d51 is the center thickness of the fifth lens, and d42 is the spacing distance between the fourth lens and the fifth lens along the optical axis. , F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F12 is the combined focal length of the first lens and the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F45 is the combined focal length of the fourth lens and the fifth lens, D52 is the maximum aperture of the second side of the fifth lens corresponding to the maximum field of view of the optical lens, R11 is the radius of curvature of the first side of the first lens, R12 is the radius of curvature of the second side of the first lens, R31 is the radius of curvature of the first side of the third lens, R52 is the central radius of curvature of the second side of the fifth lens, SAG52 is the sagittal height of the second side of the fifth lens, θ is the radian value corresponding to the maximum field of view of the optical lens, θ0 is the aperture angle at the edge aperture position of the second side of the fifth lens, and θ1 is the aperture angle at the half aperture position of the second side of the fifth lens. .

[0029] In one embodiment, the optical lens satisfies at least one of the following conditions: 77.9658°≤(FOV×F) / H≤84.3348°, -10.6933≤R11 / F≤-4.8819, 5.6988≤TTL / F≤6.0952, 2.5020≤TTL / DMAX≤3.3139, 0.0098≤D / H / FOV×1°≤0.0130, 0.1288≤BFL / TTL≤0.1341, 0.1692≤d31 / TTL≤0.2637, 1.2267≤R31 / F≤2.1803, 1.5949≤F3 / F≤2.1892, 0.1819mm -1 ≤F / ENPD / D≤0.2416mm -1, -12.0195≤R11 / R12≤-4.8050, -1.6797≤F1 / F≤-1.1753, -12.2472≤(R11-d11) / R12≤-4 .9875, -0.5653≤SAG11 / d11≤-0.2129, 0.4039≤(H / 2) / (F*tan(θ / 2))≤0.4369, -0.4451≤ F1 / |F2|≤-0.0600,0.0871≤d21 / TTL≤0.1755,0.0259≤d22 / TTL≤0.1731,2.6406≤|F2 / F |≤25.4777,-12.5067≤F12 / F≤-1.5772,0.1331≤d11 / d31≤0.2063,0.7977≤|F4 / F5|≤1.5 407, 3.5108≤|F45 / F|≤55.0559, 0.9372≤|F5 / F|≤2.2359, 0.9252≤D52 / H≤1.1283, d42 / TTL≤0.002,-0.9580≤F1 / F3≤-0.6464,-0.6937≤(1 / F1+1 / F2) / (1 / F)≤-0.4721,-0.9827 ≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.7524, 16.8088≤|R52 / SAG52|≤217.7509, 3.787≤|θ0| / |θ1|≤16.4797, 0.2233≤(d41+d51) / TTL≤0.3102, and the optical lens also includes an aperture, and satisfies: 1.1366≤DST / F≤1.4233, where TTL is the total optical length of the optical lens, DMAX is the maximum value of the maximum clear apertures of the sides of all lenses corresponding to the maximum field of view of the optical lens, D is the maximum clear aperture 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, F is the total effective focal length of the optical lens, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the effective aperture of the diaphragm, SAG11 is the sag height of the first side of the first lens, d11 is the center thickness of the first lens, d21 is the center thickness of the second lens, d22 is the spacing distance between the second lens and the third lens along the optical axis, d31 is the center thickness of the third lens, d41 is the center thickness of the fourth lens, d51 is the center thickness of the fifth lens, and d42 is the spacing distance between the fourth lens and the fifth lens along the optical axis. The distance between the two lenses is 1 / 4, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F12 is the combined focal length of the first lens and the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F45 is the combined focal length of the fourth lens and the fifth lens, D52 is the maximum aperture of the second side of the fifth lens corresponding to the maximum field of view of the optical lens, R11 is the radius of curvature of the first side of the first lens, R12 is the radius of curvature of the second side of the first lens, R31 is the radius of curvature of the first side of the third lens, R52 is the central radius of curvature of the second side of the fifth lens, SAG52 is the sagittal height of the second side of the fifth lens, θ is the radian value corresponding to the maximum field of view of the optical lens, θ0 is the aperture angle at the edge aperture position of the second side of the fifth lens, and θ1 is the aperture angle at the half aperture position of the second side of the fifth lens. .

[0030] Another aspect of the present application provides an electronic device, characterized in that it includes the optical lens of any 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

[0031] 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:

[0032] Figure 1 , Figure 4 , Figure 6 , Figure 8 , Fig.10 , Fig.12 , Fig.14 , Fig.16 , Fig.18 , Fig. 20 , Fig. 22 , Fig.24 , Fig.26 , Fig.28 Schematic diagrams of the structures of optical lenses according to Embodiments 1 to 14 of the present application are respectively shown;

[0033] Figure 2 A schematic diagram of the MTF curve of the central field of view light of the optical lens according to Example 1 of the present application is shown; and

[0034] Figure 3 , Figure 5 , Figure 7 , Fig. 9 , Fig.11 , Fig.13 , Fig.15 , Fig.17 , Fig.19 , Fig.21 , Fig.23 , Fig.25 , Fig. 27 , Fig.29 Schematic diagrams of distortion curves of optical lenses according to Embodiments 1 to 14 of the present application are respectively shown. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] It should be noted that the optical lenses provided in Examples 1 to 14 of the present application can all achieve good imaging quality, and the MTF (modulation transfer function) curve diagrams of the central field light rays thereof are relatively close. Therefore, the present application only exemplarily shows the MTF (modulation transfer function) curve diagram of the central field light rays of the optical lens of Example 1, and the MTF (modulation transfer function) curve diagrams of the central field light rays of the optical lenses of other embodiments are no longer shown one by one, and those skilled in the art should be able to know them based on the contents disclosed in the present application.

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

[0039] In this article, the paraxial 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] The features, principles and other aspects of the present application are described in detail below.

[0045] In an exemplary embodiment, the optical lens includes, for example, five lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, which are arranged in sequence from the first side to the second side along the optical axis.

[0046] In an exemplary embodiment, the optical lens provided by the present application has five lenses with optical power.

[0047] 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.

[0048] 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.

[0049] 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).

[0050] In an exemplary embodiment, the first 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 first lens has a negative optical power, and can collect and diverge light into the rear optical system, which helps to increase the light throughput of the optical lens. The first side surface of the first lens is concave, so that the first side surface of the first lens can receive and diverge peripheral light with a smaller aperture, which is beneficial to improving the angular resolution of the optical lens; the image side surface is concave, so that the large-angle light passing through the first side surface of the first lens can be quickly diverged, so that the light can reach a higher imaging position, which is beneficial to achieve a small FNO of the optical lens.

[0051] In an exemplary embodiment, an aperture for limiting the light beam may be provided between the second lens and the third 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 rear port diameter of the 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.

[0052] In an exemplary embodiment, the second lens may have positive focal power, and its first side surface may be concave, and its second side surface may be convex. The second lens has positive focal power, and the divergent light collected by the first lens can be converged and gathered, so as to help reduce the aperture of the rear optical system. The first side surface of the second lens is concave, so that the light emitted by the first lens can be received with a smaller aperture, and the light that has a divergent upward trend can be further diverged, so as to help increase the peripheral light throughput; the second side surface of the second lens is convex, so that the divergent upward light transmitted from the front optical system can be converged, so as to reduce the aperture of the rear optical system, which helps to achieve the miniaturization of the optical lens.

[0053] In an exemplary embodiment, the second lens may have positive focal power, and its first side surface may be convex and its second side surface may be concave. The second lens may have positive focal power, so that the divergent light collected by the first lens may be converged and gathered, so as to help reduce the aperture of the rear optical system. The first side surface of the second lens may be convex, so that the divergent and upward light transmitted from the front optical system may be converged, so as to reduce the aperture of the rear optical system, and help to achieve the miniaturization of the optical lens; the second side surface of the second lens may be concave, so that the light converged after passing through the first side surface of the second lens may be diverged, so that the light reaching the aperture may have a higher imaging position, which is conducive to achieving a small FNO of the optical lens.

[0054] In an exemplary embodiment, the second lens may have a negative focal length, and its first side surface may be a concave surface, and its second side surface may be a convex surface. The second lens having a negative focal length can make the divergent light collected by the first lens continue to diverge smoothly into the rear optical system, which helps to increase the light throughput of the optical lens. The first side surface of the second lens is concave, so that the light emitted by the first lens can be received with a smaller aperture, and the light that has a divergent upward trend can be further diverged, which is conducive to increasing the peripheral light throughput; the second side surface of the second lens is convex, so that the divergent upward light transmitted from the front optical system can be converged to reduce the aperture of the rear optical system, which helps to achieve the miniaturization of the optical lens.

[0055] In an exemplary embodiment, the third lens may have positive focal length, and its first side surface may be convex, and its second side surface may be convex. The third lens has positive focal length, and can collect, gather, and turn and converge the light rays that have a divergent trend after being emitted by the first lens and the second lens. The third lens with positive focal length is used in conjunction with a lens group (first lens and / or second lens) with negative focal length in the front optical system, which can effectively correct aberrations and improve the resolution of the optical lens. In an exemplary embodiment, the third lens may have a relatively large focal length so that the light rays can quickly reach the imaging surface, which helps to achieve the miniaturization of the optical lens. In an exemplary embodiment, the third lens may have a relatively thick overall thickness so that the light rays passing through the third lens can smoothly turn and transition to the rear optical system, reducing the sensitivity of the entire optical lens. In this embodiment, the first side surface and the second side surface of the third lens are both convex surfaces, so that the light transmitted from the front optical system with a divergent upward trend can be converged twice, which can not only smoothly transmit the large-angle light collected by the front optical system to the rear optical system and reduce the sensitivity of the optical lens, but also make the light turn and gather to achieve miniaturization of the optical lens.

[0056] In an exemplary embodiment, the third lens may have positive focal length, and its first side may be convex, and its second side may be concave. The third lens has positive focal length, and can collect, gather and turn and converge the light rays that have diverged after being emitted by the first lens and the second lens, which is helpful to realize the miniaturization of the optical lens. In an exemplary embodiment, the third lens may have a relatively thick overall thickness, so that the light rays passing through the third lens can be smoothly turned and transitioned to the rear optical system, reducing the sensitivity of the entire optical lens. In this embodiment, the first side of the third lens may be convex, which can quickly converge the light rays that have diverged and risen from the front optical system, which can not only reduce the length of the entire optical system, but also reduce the aperture of the rear optical system, which is helpful to the overall miniaturization of the optical lens; the second side of the third lens is concave, and the light rays converged on the first side of the third lens can be slightly diverged, so that more peripheral light rays can reach the second side of the third lens, thereby improving the relative illumination of the periphery.

[0057] In an exemplary embodiment, the fourth lens and the fifth lens are matched with positive and negative optical powers, that is, the fourth lens with positive optical power is matched with the fifth lens with negative optical power, or the fourth lens with negative optical power is matched with the fifth 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.

[0058] In an exemplary embodiment, the fourth lens can be glued with the fifth lens, which can fully correct various aberrations of the optical lens, so that the optical lens is compact and can be miniaturized, and can also achieve performance such as improved resolution, optimized distortion, and optimized CRA. The double glued lens composed of the fourth lens and the fifth lens glued together also has the following advantages: the spacing distance (such as air spacing) between the fourth lens and the fifth lens can be reduced, and the total optical length of the optical lens can be reduced; the dispersion of the fourth lens and the fifth lens can be complementary, which is conducive to reducing the chromatic aberration of the optical lens and improving the imaging quality of the optical lens; the assembly components between the fourth lens and the fifth lens can be reduced, which is conducive to reducing the process and the overall weight, and reducing the cost; the field curvature can be reduced and the off-axis point aberration of the optical lens can be corrected; the focal length can be better distributed, which is conducive to achieving thermal compensation and improving the performance of the optical lens at different temperatures.

[0059] In an exemplary embodiment, the fourth 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. When the fourth lens has a negative optical power, the fifth lens may have a positive optical power. The fourth lens with a negative optical power may be matched with two positive optical power lenses (the third lens and the fifth lens) in front and behind, which is helpful to correct aberrations and improve the resolution of the optical lens. The first side surface of the fourth lens is convex, and the central light transmitted by the front optical system can be converged, thereby reducing the lens size of the fourth lens. In this embodiment, it can also be matched with a peripheral reverse bending to diverge the light, thereby balancing the aberration of the central light and the peripheral light, and improving the resolution of the optical lens; the second side surface of the fourth lens is concave, which is conducive to diverging the light passing through the first side surface of the fourth lens, so that the light reaches a higher imaging position, which is conducive to increasing the peripheral light flux.

[0060] In an exemplary embodiment, the fourth 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. When the fourth lens has a negative optical power, the fifth lens may have a positive optical power, and the fourth lens with a negative optical power may be matched with two positive optical power lenses (the third lens and the fifth lens) in front and behind, which is helpful to correct aberrations and improve the resolution of the optical lens. When the first side surface of the fourth lens is a concave surface, the incident light rays gathered by the front optical system can be diverged, so that the light rays reach a higher imaging position, which is conducive to improving the peripheral light flux; when the second side surface of the fourth lens is a concave surface, it is conducive to further diverging the light rays passing through the first side surface of the fourth lens, so that the light rays reach a higher imaging position, which is conducive to further improving the peripheral light flux.

[0061] In an exemplary embodiment, the fourth lens may have positive focal power, and its first side surface may be convex, and its second side surface may be convex. The fourth lens has positive focal power, which can further gather the light converged by the third lens, which is conducive to realizing a small aperture of the rear optical system, so as to help realize the miniaturization of the optical lens. When the fourth lens has positive focal power, the fifth lens may have negative focal power. The fourth lens with positive focal power and the fifth lens with negative focal power can effectively correct aberrations and improve the resolution of the optical lens. In an exemplary embodiment, a high refractive index material can be set after the second side surface of the fourth lens. In this embodiment, the first side surface and the second side surface of the fourth lens are both convex surfaces, which can converge and diverge the light transmitted from the third lens, so that the light reaches a higher imaging position, which is conducive to increasing the peripheral light transmittance, and can also make the light smoothly transition to the fifth lens to reduce the sensitivity of the system and improve the resolution of the optical lens.

[0062] 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. When the fifth lens has positive focal power, the fourth lens may have negative focal power. The fifth lens with positive focal power cooperates with the fourth lens with negative focal power, which is helpful to correct aberration and improve the resolution of the optical lens; at the same time, it can also converge the light transmitted from the front optical system to the imaging surface, which is helpful to reduce the total optical length of the optical lens. Making the first side surface of the fifth lens convex can converge the incident light transmitted from the front optical system to quickly reach the imaging surface, which is helpful to achieve a short TTL of the optical system (i.e., reducing the total optical length of the optical lens); making the second side surface of the fifth lens concave can diverge the central light, so that the light can reach a higher imaging position. In an exemplary embodiment, it can also be combined with the reverse bending of the periphery to converge the peripheral light, so that the incident angle of the light entering the chip is reduced, which is helpful to improve the illumination of the optical lens and reduce the chromatic aberration of the optical lens.

[0063] 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. When the fifth lens has positive power, the fourth lens may have negative power. The fifth lens with positive power cooperates with the fourth lens with negative power, which helps to correct aberrations and improve the resolution of the optical lens; at the same time, it can also converge the light transmitted from the front optical system to the imaging surface, which helps to reduce the total optical length of the optical lens. The first side surface and the second side surface of the fifth lens are both convex, which can converge the incident light transmitted from the front optical system and make it quickly reach the imaging surface, so as to help reduce the total optical length of the optical lens.

[0064] 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 convex surface. When the fifth lens has a negative optical power, the fourth lens may have a positive optical power. The fifth lens with a negative optical power cooperates with the fourth lens with a positive optical power, which is helpful to correct aberrations and improve the resolution of the optical lens; at the same time, the light can be transmitted to a higher imaging position to improve the illumination of the optical lens. Making the first side surface of the fifth lens a concave surface can appropriately diverge the light to smooth the trend of the light emitted from several consecutive convex surfaces of the front optical system, which is beneficial to improve the resolution of the optical lens; making the second side surface of the fifth lens a convex surface can converge the light so that the light can quickly reach the imaging surface, which is beneficial to reduce the total optical length of the optical lens, and can be balanced with the first side surface of the fifth lens which is a concave surface to reduce aberrations, which is beneficial to improve the resolution of the optical lens.

[0065] 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 S13 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 sequentially passes through the surfaces S13 to S1 and is finally projected onto a projection plane (not shown) disposed on the first side.

[0066] In an exemplary embodiment, the optical lens may satisfy: 70°≤(FOV×F) / H≤95°, wherein 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. The optical lens is made to satisfy the above conditional formula, and the maximum field of view angle of the optical lens, the image height corresponding to the maximum field of view angle, and the total effective focal length are controlled, so that the optical lens can simultaneously satisfy the requirements of telephoto and large field of view, and the angular resolution of the central area of ​​the optical lens is large. Furthermore, the optical lens may also satisfy: 75°≤(FOV×F) / H≤90°, so as to realize the telephoto and large field of view of the optical lens. Furthermore, the optical lens may also satisfy: 77.9658°≤(FOV×F) / H≤84.3348°, so as to realize the telephoto and large field of view of the optical lens.

[0067] In an exemplary embodiment, the optical lens may satisfy: -12≤R11 / F≤-3.8, wherein F is the total effective focal length of the optical lens, and R11 is the radius of curvature of the first side of the first lens. By making the optical lens satisfy the above conditional formula and controlling the radius of curvature of the first side of the first lens, the shape of the first side of the first lens may be a relatively curved concave surface, which is conducive to enabling the first lens to collect large-angle field light with a smaller aperture, thereby achieving a large field of view of the optical lens. Furthermore, the optical lens may also satisfy: -11.2≤R11 / F≤-4.5, to achieve a large field of view and a small aperture of the optical lens. Furthermore, the optical lens may also satisfy: -10.6933≤R11 / F≤-4.8819, to achieve a large field of view and a small aperture of the optical lens.

[0068] In an exemplary embodiment, the optical lens may satisfy: 4≤TTL / F≤6.5, where 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 ratio of the total optical length to the total effective focal length of the optical system, a longer focal length and miniaturization of the optical lens can be achieved. Further, the optical lens may also satisfy: 5.4≤TTL / F≤6.2 to achieve a longer focal length and miniaturization of the optical lens. Further, the optical lens may also satisfy: 5.6988≤TTL / F≤6.0952 to achieve a longer focal length and miniaturization of the optical lens.

[0069] In an exemplary embodiment, the optical lens may satisfy: 1.8≤TTL / DMAX≤3.6, wherein TTL is the total optical length of the optical lens, and DMAX is the maximum value of the maximum light-clearance diameters of the sides of all lenses corresponding to the maximum field of view of the optical lens. In an exemplary embodiment, the maximum value of the maximum light-clearance diameters of the sides of all lenses corresponding to the maximum field of view of the optical lens 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. By making the optical lens satisfy the above conditional formula, controlling the total optical length of the optical lens and the maximum value of the maximum light-clearance diameters of the sides of all lenses corresponding to the maximum field of view of the optical lens, the optical lens can be made compact, thereby realizing the miniaturization of the optical lens. Further, the optical lens may also satisfy: 2.25≤TTL / DMAX≤3.6, so as to realize the miniaturization of the optical lens. Further, the optical lens may also satisfy: 2.5020≤TTL / DMAX≤3.3139, so as to realize the miniaturization of the optical lens.

[0070] In an exemplary embodiment, the optical lens may satisfy: 0.005≤D / H / FOV×1°≤0.02, wherein D is the maximum light aperture 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, and FOV is the maximum field of view of the optical lens. By making the optical lens satisfy the above conditional formula, the light aperture of the first side of the first lens can be made smaller while the image height and the maximum field of view corresponding to the maximum field of view of the optical lens remain unchanged, thereby achieving miniaturization of the optical lens. Furthermore, the optical lens may also satisfy: 0.009≤D / H / FOV×1°≤0.015 to achieve miniaturization of the optical lens. Furthermore, the optical lens may also satisfy: 0.0098≤D / H / FOV×1°≤0.0130 to achieve miniaturization of the optical lens.

[0071] In an exemplary embodiment, the optical lens may satisfy: 0.08≤BFL / TTL≤0.22, 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, the optical back focus of the optical lens can be made as large as possible on the basis of making the optical lens more compact and miniaturized, and a certain length can be reserved to meet the assembly requirements of the camera module. Furthermore, the optical lens may also satisfy: 0.1≤BFL / TTL≤0.19 to achieve the miniaturization of the optical lens. Furthermore, the optical lens may also satisfy: 0.1288≤BFL / TTL≤0.1341 to achieve the miniaturization of the optical lens.

[0072] In an exemplary embodiment, the optical lens may satisfy: 0.14≤d31 / TTL≤0.32, wherein d31 is the center thickness of the third lens, and TTL is the total optical length of the optical lens. The optical lens satisfies the above conditional formula, by limiting the ratio of the center thickness of the third lens to the total optical length, so that the center thickness of the third lens accounts for a larger proportion, so that the light passing through the third lens with a smaller effective focal length can be smoothly transmitted to the rear optical system without allowing the light to be deflected too quickly, resulting in a reduction in the sensitivity of the optical lens. Further, the optical lens may also satisfy: 0.16≤d31 / TTL≤0.3, so as to achieve miniaturization, high resolution, and low sensitivity of the optical lens. Further, the optical lens may also satisfy: 0.1692≤d31 / TTL≤0.2637, so as to achieve miniaturization, high resolution, and low sensitivity of the optical lens.

[0073] In an exemplary embodiment, the optical lens may satisfy: 0.8≤R31 / F≤3, wherein R31 is the radius of curvature of the first side surface of the third lens, and F is the total effective focal length of the optical lens. The optical lens satisfies the above conditional formula, and the ratio of the radius of curvature of the first side surface of the third lens to the total effective focal length is limited, so that the light rays with an upward trend are gathered after passing through the first side surface of the third lens, and converge and turn to reduce the distance to the imaging surface, thereby reducing the total optical length of the optical lens. Furthermore, the optical lens may also satisfy: 1≤R31 / F≤2.65, so as to realize the miniaturization of the optical lens. Furthermore, the optical lens may also satisfy: 1.2267≤R31 / F≤2.1803, so as to realize the miniaturization of the optical lens.

[0074] In an exemplary embodiment, the optical lens may satisfy: 0.8≤F3 / F≤3, wherein F is the total effective focal length of the optical lens, and F3 is the effective focal length of the third lens. In this embodiment, the third lens has a positive focal power, so that the optical lens satisfies the above conditional formula, and the ratio of the effective focal length of the third lens to the total effective focal length is controlled so that the ratio is small, which can effectively converge the turning light, thereby effectively reducing the total optical length of the optical lens. Further, the optical lens may also satisfy: 1.2≤F3 / F≤2.5, so as to realize the miniaturization of the optical lens. Furthermore, the optical lens may also satisfy: 1.5949≤F3 / F≤2.1892, so as to realize the miniaturization of the optical lens.

[0075] In an exemplary embodiment, the optical lens may meet: 0.12 mm -1 ≤F / ENPD / D≤0.3mm -1 , where F is the total effective focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, and D is the maximum aperture of the first side of the first lens corresponding to the maximum field angle of the optical lens. If the optical lens satisfies the above conditional formula, the small aperture of the optical lens can be ensured under the premise of high light throughput, so as to realize the miniaturization of the optical lens. Furthermore, the optical lens can also meet the following conditions: 0.15mm -1 ≤F / ENPD / D≤0.25mm -1 , in order to achieve miniaturization and high light transmission of optical lenses. Furthermore, the optical lens can also meet: 0.1819mm -1 ≤F / ENPD / D≤0.2416mm -1, to achieve miniaturization and high light throughput of the optical lens. In an exemplary embodiment, the optical lens may satisfy: 0.8≤DST / F≤1.85, wherein DST is the effective aperture of the aperture, and F is the total effective focal length of the optical lens. The optical lens satisfies the above conditional formula so that the ratio between the effective aperture of the aperture and the total effective focal length is larger, then the larger the lens aperture, the more light enters the optical lens. Further, the optical lens may also satisfy: 1.0≤DST / F≤1.5, to achieve high light throughput of the optical lens. Further, the optical lens may also satisfy: 1.0≤DST / F≤1.5, to achieve high light throughput of the optical lens.

[0076] In an exemplary embodiment, the optical lens may satisfy: -13≤R11 / R12≤-3.5, wherein R11 is the radius of curvature of the first side surface of the first lens, and R12 is the radius of curvature of the second side surface of the first lens. In order for the optical lens to satisfy the above conditional formula, the shapes of the first side surface and the second side surface of the first lens may be limited to be concave, so as to diverge the light twice, so that the light can quickly reach a higher imaging position, fill the entire optical lens, and improve the illumination of the optical lens. Furthermore, the optical lens may also satisfy: -12.5≤R11 / R12≤-4, so as to achieve high light transmittance of the optical lens. Furthermore, the optical lens may also satisfy: -12.0195≤R11 / R12≤-4.8050, so as to achieve high light transmittance of the optical lens. In an exemplary embodiment, the optical lens simultaneously satisfies the conditional formulas -13≤R11 / R12≤-3.5 (or -12.5≤R11 / R12≤-4, -12.0195≤R11 / R12≤-4.8050) and -12≤R11 / F≤-3.8 (or -11.2≤R11 / F≤-4.5, -10.6933≤R11 / F≤-4.8819), and the shapes of the first side surface and the second side surface of the first lens, both of which are concave surfaces, can be further limited to achieve high light transmittance of the optical lens.

[0077] In an exemplary embodiment, the optical lens may satisfy: -2.4≤F1 / F≤-0.6, wherein F1 is the effective focal length of the first lens, and F is the total effective focal length of the optical lens. The first lens having negative optical power has a divergent effect on the collected light, so that the optical lens satisfies the above conditional formula, and the shapes of the first side surface and the second side surface of the first lens, both of which are concave surfaces, may be limited to diverge the light twice, so that the light can quickly reach a higher imaging position, fill the entire optical lens, and improve the illumination of the optical lens. Further, the optical lens may also satisfy: -1.85≤F1 / F≤-0.9, to achieve high light throughput of the optical lens. Furthermore, the optical lens may also satisfy: -1.6797≤F1 / F≤-1.1753, to achieve high light throughput of the optical lens.

[0078] In an exemplary embodiment, the optical lens may satisfy: -13≤(R11-d11) / R12≤-4, wherein d11 is the center thickness of the first lens, R11 is the radius of curvature of the first side of the first lens, and R12 is the radius of curvature of the second side of the first lens. The optical lens satisfies the above conditional formula by better setting the radius of curvature and the center thickness of the first side and the second side of the first lens so that the radius of curvature of the second side is smaller than that of the first side, which is conducive to the divergence of light, so that the light can quickly reach a higher imaging position, fill the optical lens, and thus improve the overall illumination. Further, the optical lens may also satisfy: -12.6≤(R11-d11) / R12≤-4.5 to achieve high light transmittance of the optical lens. Further, the optical lens may also satisfy: -12.2472≤(R11-d11) / R12≤-4.9875 to achieve high light transmittance of the optical lens. In an exemplary embodiment, the optical lens simultaneously satisfies the conditional formulas -2.4≤F1 / F≤-0.6 (or -1.85≤F1 / F≤-0.9, -1.6797≤F1 / F≤-1.1753) and -13≤(R11-d11) / R12≤-4 (or -12.6≤(R11-d11) / R12≤-4.5, -12.2472≤(R11-d11) / R12≤-4.9875), which can enable the light to reach a higher imaging position more quickly and fill the optical lens to improve the illumination of the optical lens.

[0079] In an exemplary embodiment, the optical lens may satisfy: -1.2≤SAG11 / d11≤-0.05, wherein SAG11 is the sagittal height of the first side surface of the first lens, and d11 is the center thickness of the first lens. The first lens has a negative optical focal length, and both the first side surface and the second side surface are concave surfaces, so that the optical lens satisfies the above conditional formula, and the ratio of the sagittal height of the first side surface of the first lens to the center thickness is controlled, so that the surface of this surface can be more curved and the sagittal height can be larger, which is conducive to collecting light with a large field of view, achieving a high angular resolution in the center of the optical lens, and thus improving the imaging quality of the central area. Further, the optical lens may also satisfy: -0.8≤SAG11 / d11≤-0.15 to achieve a high angular resolution of the optical lens. Furthermore, the optical lens may also satisfy: -0.5653≤SAG11 / d11≤-0.2129 to achieve a high angular resolution of the optical lens.

[0080] In an exemplary embodiment, the optical lens may satisfy: 0.32≤(H / 2) / (F*tan(θ / 2))≤0.5, 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. The optical lens is made to satisfy the above conditional formula, and the image height and radian value corresponding to the total effective focal length and the maximum field of view of the optical lens are controlled, so that the angular resolution of the central light of the optical lens is larger, thereby improving the resolution capability of the central area. Further, the optical lens may also satisfy: 0.39≤(H / 2) / (F*tan(θ / 2))≤0.45 to achieve a large angular resolution of the optical lens. Furthermore, the optical lens may also satisfy: 0.4039≤(H / 2) / (F*tan(θ / 2))≤0.4369 to achieve a large angular resolution of the optical lens.

[0081] In an exemplary embodiment, the optical lens may satisfy: -0.65≤F1 / |F2|≤-0.01, wherein F1 is the effective focal length of the first lens, and F2 is the effective focal length of the second lens. By making the optical lens satisfy the above conditional formula, controlling the ratio of the effective focal lengths of the first lens and the second lens, and making the effective focal length of the first lens smaller, the light may maintain an overall upward trend in the first two lenses, which is conducive to achieving telephoto. Furthermore, the optical lens may also satisfy: -0.48≤F1 / |F2|≤-0.025, which is conducive to achieving telephoto. Furthermore, the optical lens may also satisfy: -0.4451≤F1 / |F2|≤-0.0600, which is conducive to achieving telephoto.

[0082] In an exemplary embodiment, the optical lens may satisfy: 0.055≤d21 / TTL≤0.24, wherein TTL is the total optical length of the optical lens, and d21 is the center thickness of the second lens. The optical lens satisfies the above conditional formula, and by controlling the ratio of the center thickness of the second lens to the total optical length, the center thickness proportion of the second lens is better distributed, which can meet the requirements of miniaturization while allowing light to be smoothly transmitted to the rear, thereby reducing the sensitivity of the optical lens. Furthermore, the optical lens may also satisfy: 0.075≤d21 / TTL≤0.2, to achieve low sensitivity and high resolution of the optical lens. Furthermore, the optical lens may also satisfy: 0.0871≤d21 / TTL≤0.1755, to achieve low sensitivity and high resolution of the optical lens.

[0083] In an exemplary embodiment, the optical lens may satisfy: 0.015≤d22 / TTL≤0.24, wherein TTL is the total optical length of the optical lens, and d22 is the spacing distance between the second lens and the third lens along the optical axis. The optical lens satisfies the above conditional formula by controlling the ratio of the spacing distance between the second lens and the third lens to the total optical length, so that the light with an upward trend emitted through the first lens and the second lens can be transmitted to a farther distance, thereby allowing the peripheral light to reach a higher imaging position, thereby achieving telephoto while improving the illumination of the entire optical system. Furthermore, the optical lens may also satisfy: 0.02≤d22 / TTL≤0.2, which is conducive to achieving high light throughput, high resolution, and telephoto of the optical lens. Furthermore, the optical lens may also satisfy: 0.0259≤d22 / TTL≤0.1731, which is conducive to achieving high light throughput, high resolution, and telephoto of the optical lens.

[0084] In an exemplary embodiment, the optical lens may satisfy: 1.85≤|F2 / F|≤65, wherein F is the total effective focal length of the optical lens, and F2 is the effective focal length of the second lens. The optical lens satisfies the above conditional formula, and by controlling the ratio of the effective focal length of the second lens to the total effective focal length, the effective focal length of the second lens accounts for a large proportion, so that the light can be smoothly transitioned to the third lens, thereby reducing the sensitivity of the optical lens, improving the resolution of the optical lens, and at the same time facilitating the realization of telephoto. Further, the optical lens may also satisfy: 2.2≤|F2 / F|≤45, which is conducive to realizing low sensitivity, high resolution, and telephoto of the optical lens. Furthermore, the optical lens may also satisfy: 2.6406≤|F2 / F|≤25.4777, which is conducive to realizing low sensitivity, high resolution, and telephoto of the optical lens.

[0085] In an exemplary embodiment, the optical lens may satisfy: -18≤F12 / F≤-1.0, wherein F12 is the combined focal length of the first lens and the second lens, and F is the total effective focal length of the optical lens. The optical lens satisfies the above conditional formula, and the combined focal length of the first lens and the second lens is controlled to be a negative value, so that the collected light can be gradually diverged, and the central light can be diverged, thereby improving the angular resolution of the optical lens; and the peripheral light can reach a higher imaging position, thereby improving the luminous flux of the optical lens. Furthermore, the optical lens can also satisfy: -15≤F12 / F≤-1.2 to achieve high light throughput of the optical lens. Furthermore, the optical lens can also satisfy: -12.5067≤F12 / F≤-1.5772 to achieve high light throughput of the optical lens. In the exemplary implementation range, the optical lens simultaneously satisfies the conditions -18≤F12 / F≤-1.0 (or -15≤F12 / F≤-1.2, -12.5067≤F12 / F≤-1.5772) and 1.85≤|F2 / F|≤65 (or 2.2≤|F2 / F|≤45, 2.6406≤|F2 / F|≤25.4777), so that the first lens and the second lens form a front group combination with negative optical power, which can further make the light transition smoothly to the third lens, thereby reducing the sensitivity of the optical lens, improving the resolution of the optical lens, and at the same time facilitating the realization of telephoto. In an exemplary embodiment, the optical lens simultaneously satisfies the conditions -18≤F12 / F≤-1.0 (or -15≤F12 / F≤-1.2, -12.5067≤F12 / F≤-1.5772) and 0.8≤DST / F≤1.85 (or 1.0≤DST / F≤1.5, 1.1366≤DST / F≤1.4233), which can further enable the peripheral light to reach a higher imaging position, thereby further improving the luminous flux of the optical lens.

[0086] In an exemplary embodiment, the optical lens may satisfy: 0.08≤d11 / d31≤0.25, wherein d11 is the center thickness of the first lens, and d31 is the center thickness of the third lens. After the light passes through the first lens, the second lens, and the third lens, the overall trend is divergent first and then turns and converges. By making the optical lens satisfy the above conditional formula and controlling the center thickness of the first lens and the third lens, the trend of light passing through the first lens and the third lens can be made to have a relatively smooth transition, so as to reduce the sensitivity of the optical lens and improve the resolution of the optical lens. Furthermore, the optical lens may also satisfy: 0.1≤d11 / d31≤0.225, so as to achieve low sensitivity and high resolution of the optical lens. Furthermore, the optical lens may also satisfy: 0.1331≤d11 / d31≤0.2063, so as to achieve low sensitivity and high resolution of the optical lens.

[0087] In an exemplary embodiment, the optical lens may satisfy: 0.5≤|F4 / F5|≤2.2, wherein F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens. By making the optical lens satisfy the above conditional formula and controlling the focal length ratio of the fourth lens and the fifth lens, two lenses with opposite optical powers, to be close, the stability of the optical lens under temperature changes can be adjusted, so that the lens can still maintain good resolution during use in an environment with high and low temperature changes. Further, the optical lens may also satisfy: 0.7≤|F4 / F5|≤1.95, so as to achieve good thermal performance and high resolution of the optical lens. Furthermore, the optical lens may also satisfy: 0.7977≤|F4 / F5|≤1.5407, so as to achieve good thermal performance and high resolution of the optical lens.

[0088] In an exemplary embodiment, the optical lens may satisfy: 2.5≤|F45 / F|, wherein F45 is the combined focal length of the fourth lens and the fifth lens, and F is the total effective focal length of the optical lens. The fourth lens and the fifth lens are a cemented lens group, so that the optical lens satisfies the above conditional formula, and a better combined focal length of the cemented parts can be formed, thereby eliminating the chromatic aberration between the fourth lens and the fifth lens, and improving the resolution of the optical lens. In this embodiment, |F45 / F| can approach positive infinity. When the value of F45 tends to be larger, the light deflection decreases, which can reduce the sensitivity of the optical lens. Further, the optical lens can also satisfy: 2.8≤|F45 / F|≤90 to improve the resolution of the optical lens. Further, the optical lens can also satisfy: 3.5108≤|F45 / F|≤55.0559 to improve the resolution of the optical lens. In an exemplary embodiment, the optical lens satisfies the conditional expression 2.5≤|F45 / F| (or 2.8≤|F45 / F|≤90, 3.5108≤|F45 / F|≤55.0559) and at least one of the following conditional expressions, which can further eliminate chromatic aberration between lenses of the optical lens and improve the resolution of the optical lens: -2.4≤F1 / F≤-0.6 (or -1.85≤F1 / F≤-0.9, -1.6797≤F1 / F≤-1.1753), -18≤F12 / F≤-1.0 (or -15≤F12 / F≤-1.2, -12.5067≤F12 / F≤-1.5772), and 0.8≤F3 / F≤3 (or 1.2≤F3 / F≤2.5, 1.5949≤F3 / F≤2.1892).

[0089] In an exemplary embodiment, the optical lens may satisfy: 0.45≤|F5 / F|≤3, wherein F5 is the effective focal length of the fifth lens, and F is the total effective focal length of the optical lens. The fifth lens is matched with four lenses having opposite optical powers to the fifth lens, so that the optical lens satisfies the above conditional formula, and the effective focal length of the fifth lens is controlled, which can effectively eliminate the chromatic aberration of the optical lens and improve the resolution of the optical lens. Further, the optical lens may also satisfy: 0.65≤|F5 / F|≤2.75 to improve the resolution of the optical lens. Further, the optical lens may also satisfy: 0.9372≤|F5 / F|≤2.2359 to improve the resolution of the optical lens.

[0090] In an exemplary embodiment, the optical lens may satisfy: 0.7≤D52 / H≤1.5, wherein H is the image height corresponding to the maximum field angle of the optical lens, and D52 is the maximum clear aperture of the second side of the fifth lens corresponding to the maximum field angle of the optical lens. When the optical lens satisfies the above conditional formula, it may be more conducive to the parallel emission of the main light onto the imaging surface under the conditions that the second side clear aperture of the last lens of the optical lens is larger and the same imaging surface and image height are the same, thereby facilitating the realization of a small CRA of the optical lens. Furthermore, the optical lens may also satisfy: 0.85≤D52 / H≤1.25 to realize a small CRA of the optical lens. Furthermore, the optical lens may also satisfy: 0.9252≤D52 / H≤1.1283 to realize a small CRA of the optical lens.

[0091] In an exemplary embodiment, the optical lens may satisfy: d42 / TTL≤0.008, wherein d42 is the spacing distance between the fourth lens and the fifth lens along the optical axis, and TTL is the total optical length of the optical lens. The optical lens satisfies the above conditional formula, and the spacing distance between the fourth lens and the fifth lens is controlled to be smaller, which is conducive to miniaturization of the optical lens. In addition, the fourth lens and the fifth lens are a cemented lens group, and the optical lens satisfies the above conditional formula, which is conducive to high resolution of the light lens. Further, the optical lens may also satisfy: d42 / TTL≤0.005, so as to achieve miniaturization and high resolution of the optical lens. Further, the optical lens may also satisfy: d42 / TTL≤0.002, so as to achieve miniaturization and high resolution of the optical lens. In an exemplary embodiment, d42 / TTL=0.002. In an exemplary embodiment, the optical lens satisfies the conditional expression d42 / TTL≤0.008 (or d42 / TTL≤0.005, d42 / TTL≤0.002) and at least one of the following conditional expressions, so as to further achieve high resolution of the optical lens: 0.08≤d11 / d31≤0.25 (or 0.1≤d11 / d31≤0.225, 0.1331≤d11 / d31≤0.2063) and 0.5≤|F4 / F5|≤2.2 (or 0.7≤|F4 / F5|≤1.95, 0.7977≤|F4 / F5|≤1.5407).

[0092] In an exemplary embodiment, the optical lens can satisfy: -1.5≤F1 / F3≤-0.4, where F1 is the effective focal length of the first lens and F3 is the effective focal length of the third lens. The optical lens satisfies the above conditional formula, and by controlling the ratio of the effective focal lengths of the first lens and the third lens, the third lens can effectively converge the light that continues to diverge after the divergence of the first lens with negative optical power and the smooth transition of the second lens, which is beneficial to reducing the total optical length and aperture of the optical lens; at the same time, it can also balance the aberration of the front optical system, improve the resolution of the optical lens, and effectively reduce the sensitivity of the optical lens. Further, the optical lens can also satisfy: -1.1≤F1 / F3≤-0.58, so as to achieve miniaturization, high resolution and low sensitivity of the optical lens. Further, the optical lens can also satisfy: -0.9580≤F1 / F3≤-0.6464, so as to achieve miniaturization, high resolution and low sensitivity of the optical lens. In an exemplary embodiment, the conditional expressions -1.5≤F1 / F3≤-0.4 (or -1.1≤F1 / F3≤-0.58, -0.9580≤F1 / F3≤-0.6464) and 0.08≤d11 / d31≤0.25 (or 0.1≤d11 / d31≤0.225, 0.1331≤d11 / d31≤0.2063) are satisfied simultaneously, which can further reduce the sensitivity of the optical lens.

[0093] In an exemplary embodiment, the optical lens may satisfy: -0.82≤(1 / F1+1 / F2) / (1 / F)≤-0.35, wherein F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, and F is the total effective focal length of the optical lens. The front group lens group composed of the first lens and the second lens has a negative optical focal length as a whole, and has the function of diverging light, so that the optical lens satisfies the above conditional formula. By controlling the ratio of the effective focal length of the first lens and the second lens to the total effective focal length, it is possible to collect light with a large field of view angle to enter the optical lens, so that the light is diffused and raised, which is also conducive to achieving the telephoto of the optical lens. Furthermore, the optical lens may also satisfy: -0.78≤(1 / F1+1 / F2) / (1 / F)≤-0.4, which is conducive to the telephoto and large field of view of the optical lens. Furthermore, the optical lens can also satisfy: -0.6937≤(1 / F1+1 / F2) / (1 / F)≤-0.4721, so as to facilitate the long focus and large field of view of the optical lens.

[0094] In an exemplary embodiment, the optical lens may satisfy: -1.2≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.4, wherein 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, F45 is the combined focal length of the fourth lens and the fifth lens, and F is the total effective focal length of the optical lens. The first lens has a negative optical focal length and has a divergent effect on light. The overall optical focal length of the cemented lens group composed of the third lens, the fourth lens and the fifth lens is positive and has a converging effect on light. The optical lens satisfies the above conditional formula and controls the effective focal length value of the second lens to be larger, so that the light can transition smoothly. By controlling the optical focal length of the first lens, the second lens, the third lens, the fourth lens and the fifth lens, it is beneficial to achieve high resolution and miniaturization of the optical lens while taking into account the long back focus. Furthermore, the optical lens can also satisfy: -1≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.6, which is conducive to achieving high resolution and miniaturization of the optical lens while taking into account long back focus. Furthermore, the optical lens can also satisfy: -0.9827≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.7524, which is conducive to achieving high resolution and miniaturization of the optical lens while taking into account long back focus.

[0095] In an exemplary embodiment, at least two of the first to fifth lenses may be spherical lenses or aspherical lenses. In an exemplary embodiment, the second lens may be an aspherical lens, and at least one of the fourth and fifth lenses 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 using 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.

[0096] In an exemplary embodiment, the optical lens may satisfy: 13≤|R52 / SAG52|, wherein R52 is the central curvature radius of the second side of the fifth lens, and SAG52 is the sagittal height of the second side of the fifth lens. In an exemplary embodiment, the fifth lens is an aspherical lens, so that the optical lens satisfies the above conditional formula, and the ratio of the sagittal height of the second side of the fifth lens to the central curvature radius is preferably set, so that the fifth lens has a special shape, that is, the center of the second side is flat and the edge is relatively curved, which is conducive to adjusting the optical path difference of each field of view, so that the light can smoothly reach the imaging surface to achieve a better back focus length of the optical lens. In this embodiment, when the value of |R52| tends to be larger, that is, when the second side of the fifth lens is flatter, the value of |R52 / SAG52| can approach positive infinity. Further, the optical lens can also satisfy: 13≤|R52 / SAG52|≤300 to achieve a long back focus of the optical lens. Furthermore, the optical lens may also satisfy: 16.8088≤|R52 / SAG52|≤217.7509 to achieve a long back focus of the optical lens.

[0097] In an exemplary embodiment, the optical lens may satisfy: 1.5≤|θ0| / |θ1|≤30, wherein θ0 is the opening angle at the edge aperture position of the second side surface of the fifth lens, and θ1 is the opening angle at the half aperture position of the second side surface of the fifth lens. In an exemplary embodiment, the fifth lens is an aspherical lens, so that the optical lens satisfies the above conditional formula, and the ratio of the opening angle at the half aperture position of the second side surface of the fifth lens to the edge aperture position can be well set, so that the fifth lens can be in a shape with an edge curved relative to the center, which is conducive to the smooth transition of each field of view light to the image plane, thereby achieving a longer back focus on the basis of miniaturization of the optical lens. Further, the optical lens may also satisfy: 1.85≤|θ0| / |θ1|≤20, so as to achieve a long back focus of the optical lens. Further, the optical lens may also satisfy: 3.787≤|θ0| / |θ1|≤16.4797, so as to achieve a long back focus of the optical lens.

[0098] In an exemplary embodiment, the optical lens may satisfy: 0.15≤(d41+d51) / TTL≤0.38, wherein d41 is the center thickness of the fourth lens, d51 is the center thickness of the fifth 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 center thickness of the fourth lens and the fifth lens, the overall thickness of the double-cemented lens formed by the fourth lens and the fifth lens can be set in a better range, thereby smoothly transitioning the light, reducing the sensitivity of the optical lens, and improving the resolution quality of the optical lens on the basis of miniaturization of the optical lens. Further, the optical lens may also satisfy: 0.185≤(d41+d51) / TTL≤0.33 to achieve low sensitivity of the optical lens. Further, the optical lens may also satisfy: 0.2233≤(d41+d51) / TTL≤0.3102 to achieve low sensitivity of the optical lens.

[0099] 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 fifth 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.

[0100] In an exemplary embodiment, the first lens to the fifth lens may be a glass lens or a plastic lens. 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 lens to the fifth lens can all be glass aspherical lenses. In applications where temperature stability requirements are lower, the first lens to the fifth lens in the optical lens can also be made of plastic. Making an optical lens with plastic can effectively reduce production costs. Of course, the first lens to the fifth lens in the optical lens can also be made of a combination of plastic and glass.

[0101] In an exemplary embodiment, the first side surface and the second side surface of the second lens, the first side surface of the fourth lens, and the first side surface and the second side surface of the fifth lens may have reverse curvature, which is beneficial to balance aberrations and improve the resolution of the optical lens.

[0102] According to the above-mentioned embodiment of the present application, the optical lens has at least one beneficial effect such as good thermal stability, high resolution, long back focus, long focus, and large field of view through the reasonable setting of parameters such as lens shape and optical focal length.

[0103] 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 five lenses are described as an example in the embodiment, the optical lens is not limited to including five lenses. If necessary, the optical lens may also include other numbers of lenses. The following further describes a specific embodiment of the optical lens applicable to the above-mentioned embodiment with reference to the accompanying drawings. Example 1

[0104] 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.

[0105] 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 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0106] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0107] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0108] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0109] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0110] The fifth lens L5 has positive refractive power, and its first side surface S8 is convex, and its second side surface S9 is concave.

[0111] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the second side surface S9 of the fifth lens L5 has an inverse curve.

[0112] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0113] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0114] 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 S13 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 sequentially passes through the surfaces S13 to S1 and is finally projected onto a projection plane (not shown) disposed on the first side.

[0115] 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.

[0116] Table 1

[0117]

[0118] In this embodiment, the first side surface S3 and the second side surface S4 of the second lens L2, the first side surface S7 and the second side surface S8 of the fourth lens L4, and the second side surface S9 of the fifth lens L5 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:

[0119] (1)

[0120] Wherein, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. Table 2 below gives the cone coefficient k and the high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 that can be used for each aspheric mirror surface S3 and S4 in this embodiment.

[0121] Table 2

[0122]

[0123] Figure 2 FIG. 1 shows a schematic diagram of the MTF curve of the central field light of the optical lens of Example 1, as shown in FIG. Figure 2 As shown, in this embodiment, in terms of MTF, the MTF (Modulation Transfer Function) value of the central field of view light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.85, wherein MTF describes the ability of the optical lens to "restore" the object space in the image space, and the horizontal axis of the MTF graph is the spatial frequency. According to the above values, the optical lens provided by this embodiment has a high resolution capability. The MTF curve graphs of the central field of view of other embodiments are similar to the above curve graphs and will not be repeated here.

[0124] Figure 3 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 1, as shown in FIG. Figure 3 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 2

[0125] The following reference Figure 4 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 4 A schematic structural diagram of an optical lens according to Embodiment 2 of the present application is shown.

[0126] 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 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0127] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0128] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0129] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0130] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0131] The fifth lens L5 has positive refractive power, and its first side surface S8 is convex, and its second side surface S9 is concave.

[0132] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the second side surface S9 of the fifth lens L5 has an inverse curve.

[0133] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0134] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0135] 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 cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the aspheric lenses of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0136] Table 3

[0137]

[0138] Table 4

[0139]

[0140] In this embodiment, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.85. Based on the above values, the optical lens provided by this embodiment has a higher resolution capability.

[0141] Figure 5 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 2, as shown in FIG. Figure 5 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 3

[0142] The following reference Figure 6 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 6 A schematic structural diagram of an optical lens according to Example 3 of the present application is shown.

[0143] 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 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0144] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0145] The second lens L2 has negative refractive power, and its first side surface S3 is a concave surface, and its second side surface S4 is a convex surface.

[0146] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0147] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0148] The fifth lens L5 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0149] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the first side surface S7 of the fourth lens L4 has an inverse curve.

[0150] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0151] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0152] 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, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 that can be used in Example 3, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0153] Table 5

[0154]

[0155] Table 6

[0156]

[0157] Figure 7 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 3, as shown in FIG. Figure 7 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 4

[0158] The following reference Figure 8 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 8 A schematic structural diagram of an optical lens according to Example 4 of the present application is shown.

[0159] 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 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0160] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0161] The second lens L2 has negative refractive power, and its first side surface S3 is a concave surface, and its second side surface S4 is a convex surface.

[0162] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0163] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0164] The fifth lens L5 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0165] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the first side surface S7 of the fourth lens L4 has an inverse curve.

[0166] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0167] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0168] Table 7 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 4. Table 8 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the aspheric lenses of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0169] Table 7

[0170]

[0171] Table 8

[0172]

[0173] In Example 3 and Example 4, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.83. Based on the above values, the optical lenses provided by Example 3 and Example 4 have a high resolution capability.

[0174] Fig. 9 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 4. Fig. 9 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 5

[0175] The following reference Fig.10 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. Fig.10 A schematic structural diagram of an optical lens according to Example 5 of the present application is shown.

[0176] 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 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0177] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0178] The second lens L2 has positive refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0179] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0180] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0181] The fifth lens L5 has positive refractive power, and its first side surface S8 is convex, and its second side surface S9 is concave.

[0182] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the second side surface S9 of the fifth lens L5 has an inverse curve.

[0183] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0184] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0185] Table 9 shows the radius of curvature 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, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0186] Table 9

[0187]

[0188] Table 10

[0189]

[0190] Fig.11 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 5, as shown in FIG. Fig.11 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 6

[0191] The following reference Fig.12 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. Fig.12 A schematic structural diagram of an optical lens according to Example 6 of the present application is shown.

[0192] like Fig.12As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0193] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0194] The second lens L2 has positive refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0195] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0196] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0197] The fifth lens L5 has positive refractive power, and its first side surface S8 is convex, and its second side surface S9 is concave.

[0198] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the second side surface S9 of the fifth lens L5 has an inverse curve.

[0199] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0200] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0201] Table 11 shows the radius of curvature 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, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0202] Table 11

[0203]

[0204] Table 12

[0205]

[0206] In Example 5 and Example 6, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.78. Based on the above values, the optical lenses provided by Example 5 and Example 6 have higher resolution capabilities.

[0207] Fig.13 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 6, as shown in FIG. Fig.13 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 7

[0208] The following reference Fig.14 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. Fig.14 A schematic structural diagram of an optical lens according to Example 7 of the present application is shown.

[0209] 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 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0210] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0211] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0212] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0213] The fourth lens L4 has positive refractive power, and its first side surface S7 is a convex surface, and its second side surface S8 is a convex surface.

[0214] The fifth lens L5 has negative refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0215] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the first side surface S8 of the fifth lens L5 has an inverse curve.

[0216] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0217] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0218] Table 13 shows the curvature radius 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, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0219] Table 13

[0220]

[0221] Table 14

[0222]

[0223] Fig.15 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 7, as shown in FIG. Fig.15 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 8

[0224] The following reference Fig.16 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. Fig.16 A schematic structural diagram of an optical lens according to Example 8 of the present application is shown.

[0225] 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 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0226] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0227] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0228] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0229] The fourth lens L4 has positive refractive power, and its first side surface S7 is a convex surface, and its second side surface S8 is a convex surface.

[0230] The fifth lens L5 has negative refractive power, and its first side surface S8 is concave, and its second side surface S9 is convex.

[0231] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented component.

[0232] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0233] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0234] Table 15 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 8. Table 16 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the aspheric lenses of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0235] Table 15

[0236]

[0237] Table 16

[0238]

[0239] In Example 7 and Example 8, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.82. Based on the above values, the optical lenses provided by Example 7 and Example 8 have higher resolution capabilities.

[0240] Fig.17 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 8, as shown in FIG. Fig.17 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 9

[0241] The following reference Fig.18 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.18 A schematic structural diagram of an optical lens according to Example 9 of the present application is shown.

[0242] like Fig.18As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0243] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0244] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0245] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0246] The fourth lens L4 has negative refractive power, and its first side surface S7 is concave, and its second side surface S8 is concave.

[0247] The fifth lens L5 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 fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the first side surface S3 of the second lens L2 has an inverse curve.

[0249] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0250] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0251] Table 17 shows the radius of curvature 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, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0252] Table 17

[0253]

[0254] Table 18

[0255]

[0256] Fig.19 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 9, as shown in FIG. Fig.19As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 10

[0257] The following reference Fig. 20 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. 20 A schematic structural diagram of an optical lens according to Example 10 of the present application is shown.

[0258] like Fig. 20 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0259] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0260] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0261] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a convex surface.

[0262] The fourth lens L4 has negative refractive power, and its first side surface S7 is concave, and its second side surface S8 is concave.

[0263] The fifth lens L5 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0264] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented component.

[0265] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0266] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0267] 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, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0268] Table 19

[0269]

[0270] Table 20

[0271]

[0272] In Examples 9 and 10, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.84. Based on the above values, the optical lenses provided by Examples 9 and 10 have higher resolution capabilities.

[0273] Fig.21 FIG. 1 shows a schematic diagram of a distortion curve of the optical lens of Example 10, as shown in FIG. Fig.21 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Embodiment 11

[0274] The following reference Fig. 22 An 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. 22 A schematic structural diagram of an optical lens according to Example 11 of the present application is shown.

[0275] like Fig. 22 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0276] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0277] The second lens L2 has positive refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0278] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a concave surface.

[0279] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0280] The fifth lens L5 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0281] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the first side surface S7 of the fourth lens L4 has an inverse curve.

[0282] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0283] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0284] Table 21 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 11. Table 22 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the aspheric lenses of the second lens L2, the fourth lens L4 and the fifth lens L5 in Example 11, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0285] Table 21

[0286]

[0287] Table 22

[0288]

[0289] Fig.23 FIG. 1 shows a schematic diagram of a distortion curve of the optical lens of Example 11, as shown in FIG. Fig.23 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 12

[0290] The following reference Fig.24 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.24 A schematic structural diagram of an optical lens according to Example 12 of the present application is shown.

[0291] like Fig.24As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 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 concave surface, and its second side surface S2 is a concave surface.

[0293] The second lens L2 has positive refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0294] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a concave surface.

[0295] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0296] The fifth lens L5 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0297] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the second side surface S4 of the second lens L2 and the first side surface S7 of the fourth lens L4 are inversely curved.

[0298] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0299] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0300] Table 23 shows the curvature radius R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 12. Table 24 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0301] Table 23

[0302]

[0303] Table 24

[0304]

[0305] In Example 11 and Example 12, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.82. Based on the above values, the optical lenses provided by Example 11 and Example 12 have higher resolution capabilities.

[0306] Fig.25 FIG. 1 shows a schematic diagram of a distortion curve of the optical lens of Example 12, as shown in FIG. Fig.25 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Example 13

[0307] The following reference Fig.26 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.26 A schematic structural diagram of an optical lens according to Example 13 of the present application is shown.

[0308] like Fig.26 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0309] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0310] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0311] The third lens L3 has positive refractive power, and its first side surface S5 is a convex surface, and its second side surface S6 is a concave surface.

[0312] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0313] The fifth lens L5 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0314] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and the first side surface S3 of the second lens L2, the first side surface S7 of the fourth lens L4, and the first side surface S8 of the fifth lens L5 are recurved.

[0315] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0316] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0317] 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 cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the aspheric lenses of the second lens L2, the fourth lens L4 and the fifth lens L5 in Example 13, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0318] Table 25

[0319]

[0320] Table 26

[0321]

[0322] Fig. 27 FIG. 1 shows a schematic diagram of a distortion curve of the optical lens of Example 13, as shown in FIG. Fig. 27 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area. Embodiment 14

[0323] The following reference Fig.28 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.28 A schematic structural diagram of an optical lens according to Example 14 of the present application is shown.

[0324] like Fig.28 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0325] The first lens L1 has negative refractive power, and its first side surface S1 is a concave surface, and its second side surface S2 is a concave surface.

[0326] The second lens L2 has positive refractive power, a first side surface S3 thereof is a concave surface, and a second side surface S4 thereof is a convex surface.

[0327] The third lens L3 has positive refractive power, and its first side surface S5 is convex, and its second side surface S6 is concave.

[0328] The fourth lens L4 has negative refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0329] The fifth lens L5 has positive refractive power, and its first side surface S8 is a convex surface, and its second side surface S9 is a convex surface.

[0330] The fourth lens L4 and the fifth lens L5 are cemented together to form a cemented member, and a first side surface S7 of the fourth lens L4 and a first side surface S8 of the fifth lens L5 are inversely curved.

[0331] The optical lens may further include a stop STO, and the stop STO may be disposed between the second lens L2 and the third lens L3.

[0332] Optionally, the optical lens may further include, for example, a filter having a first side surface S10 and a second side surface S11 , and a protective glass having a first side surface S12 and a second side surface S13 .

[0333] 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, A16, A18 and A20 of the aspheric mirror surfaces S3, S4, S7, S8 and S9 of the second lens L2, the fourth lens L4 and the fifth lens L5 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.

[0334] Table 27

[0335]

[0336] Table 28

[0337]

[0338] In Example 13 and Example 14, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 65lp / mm (65 lines / mm) exceeds 0.82. Based on the above values, the optical lenses provided by Example 13 and Example 14 have higher resolution capabilities.

[0339] Fig.29 FIG. 4 shows a schematic diagram of a distortion curve of the optical lens of Example 14, as shown in FIG. Fig.29 As shown, the edge field of view of the optical lens provided in the embodiment of the present application has a certain distortion, which can improve the imaging of the central area.

[0340] In summary, Example 1 to Example 14 respectively satisfy the relationships shown in Table 29-1, Table 29-2, Table 29-3, Table 30-1, Table 30-2, and Table 30-3. In Table 29-1, Table 29-2, Table 29-3, Table 30-1, Table 30-2, and Table 30-3, the units of F, ENPD, TTL, BFL, DST, H, BFL, F1~F5, F12, F45, DMAX, D, SAG11, D52, and SAG52 are millimeters (mm), the units of FOV are degrees (°), and the units of θ, θ0, and θ1 are radians (rad).

[0341] Table 29-1

[0342]

[0343] Table 29-2

[0344]

[0345] Table 29-3

[0346]

[0347] Table 30-1

[0348]

[0349] Table 30-2

[0350]

[0351] Table 30-3

[0352]

[0353] 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.

[0354] 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 (but not limited to) technical features with similar functions disclosed in the present application.

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 negative optical power, wherein the first side surface is concave and the second side surface is concave; a second lens having optical power; a third lens element having positive power, wherein the first side surface of the third lens element is convex; a fourth lens having optical power; and a fifth lens having optical power; One of the fourth lens and the fifth lens has positive refractive power, and the other has negative refractive power; The optical lens has five lenses with optical power, and the optical lens satisfies: 1.85≤|F2 / F|≤65, 0.15≤(d41+d51) / TTL≤0.38, 70°≤(FOV×F) / H≤95°, -13≤R11 / R12≤-3.5, 0.08≤d11 / d31≤0.25 and -0.82≤(1 / F1+1 / F2) / (1 / F)≤-0.35, 0.32≤(H / 2) / (F tan(θ / 2))≤0.45, Among them, 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, d41 is the center thickness of the fourth lens, d51 is the center thickness of the fifth lens, H is the image height corresponding to the maximum field of view angle of the optical lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, TTL is the total optical length of the optical lens, FOV is the maximum field of view angle of the optical lens, R11 is the curvature radius of the first side surface of the first lens, R12 is the curvature radius of the second side surface of the first lens, d11 is the center thickness of the first lens, and d31 is the center thickness of the third lens.

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

3. The optical lens according to claim 1, characterized in that: The second side surface of the third lens is a convex surface or a concave surface.

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

5. 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 convex.

6. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 4≤TTL / F≤6.5, Wherein, TTL is the total optical length of the optical lens, and F is the total effective focal length of the optical lens.

7. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 0.08≤BFL / TTL≤0.22, Wherein, TTL is the total optical length of the optical lens, and BFL is the optical back focus of the optical lens.

8. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: -0.65≤F1 / |F2|≤-0.01, Wherein, F1 is the effective focal length of the first lens, and F2 is the effective focal length of the second lens.

9. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: -12≤R11 / F≤-3.8, Wherein, F is the total effective focal length of the optical lens, and R11 is the radius of curvature of the first side surface of the first lens.

10. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: -2.4≤F1 / F≤-0.6, Wherein, F1 is the effective focal length of the first lens, and F is the total effective focal length of the optical lens.

11. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: -13≤(R11-d11) / R12≤-4, Wherein, R11 is the curvature radius of the first side surface of the first lens, R12 is the curvature radius of the second side surface of the first lens, and d11 is the center thickness of the first lens.

12. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 0.14≤d31 / TTL≤0.32, Wherein, TTL is the total optical length of the optical lens, and d31 is the center thickness of the third lens.

13. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 0.8≤R31 / F≤3, Wherein, F is the total effective focal length of the optical lens, and R31 is the radius of curvature of the first side surface of the third lens.

14. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 0.8≤F3 / F≤3, Wherein, F is the total effective focal length of the optical lens, and F3 is the effective focal length of the third lens.

15. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: -1.5≤F1 / F3≤-0.4, Wherein, F1 is the effective focal length of the first lens, and F3 is the effective focal length of the third lens.

16. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: -1.2≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.4, Among them, 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, and F45 is the combined focal length of the fourth lens and the fifth lens.

17. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 2.5≤|F45 / F|, Wherein, F45 is the combined focal length of the fourth lens and the fifth lens, and F is the total effective focal length of the optical lens.

18. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 0.45≤|F5 / F|≤3, Wherein, F is the total effective focal length of the optical lens, and F5 is the effective focal length of the fifth lens.

19. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets at least one of the following conditions: 1.8≤TTL / DMAX≤3.6,0.005≤D / H / FOV×1°≤0.02,0.12mm -1 ≤F / ENPD / D≤0.3mm -1 , -1.2≤SAG11 / d11≤-0.05, 0.055≤d21 / TTL≤0.24, 0.015≤d22 / TTL≤0.24, -18≤F12 / F≤-1.0, 0.5≤|F4 / F5|≤2.2, 0.7≤D52 / H≤1.5, d42 / TTL≤0.008, 13≤|R52 / SAG52|, 1.5≤|θ0| / |θ1|≤30, 0.8≤F3 / F≤2.1892, 77.9658°≤(FOVxF) / H≤95°, and the optical lens further includes a stop and satisfies: 0.8≤DST / F≤1.85, Wherein, TTL is the total optical length of the optical lens, DMAX is the maximum value of the maximum light-clearance diameters of the sides of all lenses corresponding to the maximum field of view 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, F is the total effective focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the effective aperture of the aperture, SAG11 is the sag height of the first side of the first lens, d11 is the center thickness of the first lens, d21 is the center thickness of the second lens, and d22 is the center thickness of the second lens and the The spacing distance of the third lens along the optical axis, F12 is the combined focal length of the first lens and the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, D52 is the maximum clear aperture of the second side of the fifth lens corresponding to the maximum field of view of the optical lens, d42 is the spacing distance of the fourth lens and the fifth lens along the optical axis, R52 is the central curvature radius of the second side of the fifth lens, SAG52 is the sagittal height of the second side of the fifth lens, θ0 is the opening angle of the edge of the second side of the fifth lens, and θ1 is the opening angle at the half-aperture position of the second side of the fifth lens.

20. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets the following requirements: 77.9658°≤(FOVxF) / H≤90°, Among them, H is the image height corresponding to the maximum field angle of the optical lens, FOV is the maximum field angle of the optical lens, and F is the total effective focal length of the optical lens.

21. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets at least one of the following conditions: 75°≤(FOV×F) / H≤90°, -11.2≤R11 / F≤-4.5, 5.4≤TTL / F≤6.2, 2.25≤TTL / DMAX≤3.6, 0.009≤D / H / F OV×1°≤0.015, 0.1≤BFL / TTL≤0.19, 0.16≤d31 / TTL≤0.3, 1≤R31 / F≤2.65, 1.2≤F3 / F≤2.5, 0.15mm -1 ≤F / ENPD / D≤0.25mm -1 , -12.5≤R11 / R12≤-4, -1.85≤F1 / F≤-0.9, -12.6≤(R11-d11) / R12≤-4.5, -0.8≤SAG11 / d11≤-0.15, 0.39≤(H / 2) / (F tan(θ / 2))≤0.45, -0.48≤F1 / |F2|≤-0.025, 0.075≤d21 / TTL≤0.2, 0.02≤d22 / TTL≤0.2, 2.2≤|F2 / F|≤45, -15≤F12 / F≤-1.2, 0.1≤d11 / d31≤0.225, 0.7≤|F4 / F5|≤1.95, 2.8≤|F45 / F|≤90, 0.65≤|F5 / F|≤2.75, 0.85≤D52 / H≤1.25, d4 2 / TTL≤0.005, -1.1≤F1 / F3≤-0.58, -0.78≤(1 / F1+1 / F2) / (1 / F)≤-0.4, -1≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.6, 13≤|R52 / SAG52|≤300, 1.85≤|θ0| / |θ1|≤20, 0.185≤(d41+d51) / TTL≤0.33, and the optical lens further includes a stop and satisfies: 1.0≤DST / F≤1.5, Wherein, TTL is the total optical length of the optical lens, DMAX is the maximum value of the maximum clear apertures of the sides of all lenses corresponding to the maximum field of view of the optical lens, D is the maximum clear aperture 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, F is the total effective focal length of the optical lens, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the effective aperture of the aperture, SAG11 is the sag height of the first side of the first lens, d11 is the center thickness of the first lens, d21 is the center thickness of the second lens, d22 is the spacing distance between the second lens and the third lens along the optical axis, d31 is the center thickness of the third lens, d41 is the center thickness of the fourth lens, d51 is the center thickness of the fifth lens, and d42 is the spacing distance between the fourth lens and the fifth lens along the optical axis. The distance between the two lenses is as follows: F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F12 is the combined focal length of the first lens and the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F45 is the combined focal length of the fourth lens and the fifth lens, D52 is the maximum clear aperture of the second side of the fifth lens corresponding to the maximum field of view of the optical lens, R11 is the curvature radius of the first side of the first lens, R12 is the curvature radius of the second side of the first lens, R31 is the curvature radius of the first side of the third lens, R52 is the central curvature radius of the second side of the fifth lens, SAG52 is the sagittal height of the second side of the fifth lens, θ is the radian value corresponding to the maximum field of view of the optical lens, θ0 is the aperture angle at the edge aperture position of the second side of the fifth lens, and θ1 is the aperture angle at the half aperture position of the second side of the fifth lens.

22. The optical lens according to any one of claims 1 to 5, characterized in that: The optical lens meets at least one of the following conditions: 77.9658°≤(FOV×F) / H≤84.3348°, -10.6933≤R11 / F≤-4.8819, 5.6988≤TTL / F≤6.0952, 2.5020≤TTL / DMAX≤3.3139, 0.0098≤D / H / FOV×1°≤0.0130, 0.1288≤BFL / TTL≤0.1341, 0.1692≤d31 / TTL≤0.2637, 1.2267≤R31 / F≤2.1803, 1.5949≤F3 / F≤2.1892, 0.1819mm -1 ≤F / ENPD / D≤0.2416mm -1 , -12.0195≤R11 / R12≤-4.8050, -1.6797≤F1 / F≤-1.1753, -12.2472≤(R1 1-d11) / R12≤-4.9875,-0.5653≤SAG11 / d11≤-0.2129,0.4039≤(H / 2) / (F tan(θ / 2))≤0.4369, -0.4451≤F1 / |F2|≤-0.0600, 0.0871≤d21 / TTL≤0.1755, 0.0259≤d22 / TTL≤0.1731, 2.6406≤|F2 / F|≤25.4777, -12.5067≤F 12 / F≤-1.5772,0.1331≤d11 / d31≤0.2063,0.7977≤|F4 / F5|≤1.5407,3 .5108≤|F45 / F|≤55.0559, 0.9372≤|F5 / F|≤2.2359, 0.9252≤D52 / H≤1.1 283, d42 / TTL≤0.002, -0.9580≤F1 / F3≤-0.6464, -0.6937≤(1 / F1+1 / F2) / (1 / F)≤-0.4721, -0.9827≤(1 / F1+1 / F2) / (1 / F3+1 / F45)≤-0.7524, 16.8088≤|R52 / SAG52|≤217.7509, 3.787≤|θ0| / |θ1|≤16.4797, 0.2233≤(d41+d51) / TTL≤0.3102, and the optical lens further includes a stop and satisfies: 1.1366≤DST / F≤1.4233, Wherein, TTL is the total optical length of the optical lens, DMAX is the maximum value of the maximum clear apertures of the sides of all lenses corresponding to the maximum field of view of the optical lens, D is the maximum clear aperture 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, F is the total effective focal length of the optical lens, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the effective aperture of the aperture, SAG11 is the sag height of the first side of the first lens, d11 is the center thickness of the first lens, d21 is the center thickness of the second lens, d22 is the spacing distance between the second lens and the third lens along the optical axis, d31 is the center thickness of the third lens, d41 is the center thickness of the fourth lens, d51 is the center thickness of the fifth lens, and d42 is the spacing distance between the fourth lens and the fifth lens along the optical axis. The distance between the two lenses is as follows: F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F12 is the combined focal length of the first lens and the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F45 is the combined focal length of the fourth lens and the fifth lens, D52 is the maximum clear aperture of the second side of the fifth lens corresponding to the maximum field of view of the optical lens, R11 is the curvature radius of the first side of the first lens, R12 is the curvature radius of the second side of the first lens, R31 is the curvature radius of the first side of the third lens, R52 is the central curvature radius of the second side of the fifth lens, SAG52 is the sagittal height of the second side of the fifth lens, θ is the radian value corresponding to the maximum field of view of the optical lens, θ0 is the aperture angle at the edge aperture position of the second side of the fifth lens, and θ1 is the aperture angle at the half aperture position of the second side of the fifth lens.

23. An electronic device, characterized in that: The invention comprises the optical lens according to any one of claims 1 to 22 and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

Images