Optical lens and electronic equipment

Abstract

The invention discloses an optical lens and electronic equipment. The optical lens sequentially comprises a first lens with negative focal power from a first side to a second side along an optical axis, a second lens with negative focal power, a third lens with negative focal power and a fourth lens with negative focal power, the second lens has focal power; a third lens with focal power; the fourth lens has positive focal power; the fifth lens has focal power; the second lens and the third lens are glued, one of the second lens and the third lens has positive focal power, the other lens has negative focal power, the optical lens meets the following conditions: 0.5 < = F23 / F < = 35, 0.8 < = R11 / R12 < = 4, 80 DEG < = (FOV * F) / H < = 100 DEG, and F5 / F > = 1, and F, F23 and F5 are respectively the total effective focal length of the optical lens, the combined focal length of the second lens and the third lens, and the effective focal length of the fifth lens. R11 and R12 are respectively the curvature radiuses of the first side surface and the second side surface of the first lens, and FOV and H are respectively the maximum field angle and the corresponding image height of the optical lens.

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, especially for optical lenses used in vehicles as key components in autonomous driving assistance systems. For example: 1) Considering factors such as the beautiful appearance of the vehicle and the convenience of assembly, higher requirements are placed on the miniaturization capability of the vehicle lens; 2) Due to the increasingly high requirements for the imaging quality of visual images, the market is in urgent need of stable and reliable vehicle front-view lenses that can meet specific usage scenarios and achieve high resolution and miniaturization; 3) Due to the increasing requirements for the amount of information, the front-view lens needs to image a larger field of view. At the same time, in order to meet the application requirements of specific usage scenarios, the lens needs to be able to take into account long focus (telephoto); 4) Due to the need for safe driving, such as in order to adapt to dark driving environments such as at night or on rainy days, the lens is required to have a strong light transmission ability.

[0003] However, the optical lenses in related technologies, especially those used in vehicles, cannot achieve the above-mentioned technical effects and meet the market requirements. Summary of the invention

[0004] 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 convex and the second side surface is concave; a second lens with optical power; a third lens with optical power; a fourth lens with positive optical power; and a fifth lens with optical power; wherein the second lens and the third lens are cemented, and one of the second lens and the third lens has positive optical power and the other has negative optical power, and the optical lens satisfies: 0.5≤ |F23 / F|≤35, 0.8≤R11 / R12≤4, 80°≤(FOV×F) / H≤100°, |F5 / F|≥1, wherein F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F5 is the effective focal length of the fifth lens, 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, 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.

[0005] 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 lens has negative optical power, and its first side surface is convex, and the second side surface is concave, the fourth lens has positive optical power, the second lens and the third lens are glued, and one of the second lens and the third lens has positive optical power, and the other has negative optical power, and the optical lens satisfies: 0.5≤|F23 / F|≤35, 0.8≤R11 / R12≤4, 80°≤(FOV×F) / H≤100°, |F5 / F|≥1, and can achieve at least one of the effects of large field of view, miniaturization, low sensitivity, high light transmission, telephoto, and high resolution.

[0006] 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 surface is convex and the second side surface is concave; a second lens with optical power; a third lens with optical power; a fourth lens with positive optical power; and a fifth lens with optical power; wherein the second lens and the third lens are glued together, and one of the second lens and the third lens has positive optical power and the other has negative optical power, and the optical lens satisfies: 0.25≤R11 / F≤1.5; R11 / SA G1≤7; 0.8≤R11 / R12≤4; 80°≤(FOV×F) / H≤100°; 0.25≤(H / 2) / (F*tan(θ / 2))≤0.6, wherein R11 is the radius of curvature of the first side surface of the first lens, SAG1 is the sag of the first side surface of the first lens, F is the total effective focal length of the optical lens, R12 is the radius of curvature of the second side surface of the first lens, H is the image height corresponding to the maximum field of view angle of the optical lens, FOV is 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.

[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 surface is convex and the second side surface is concave; a second lens with optical power; a third lens with optical power; a fourth lens with positive optical power; and a fifth lens with optical power; wherein the second lens and the third lens are cemented, and one of the second lens and the third lens has positive optical power and the other has negative optical power, and the optical lens satisfies: 0.75≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.65, wherein F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

[0008] In one embodiment, the second lens has negative optical power, its first side surface is convex, and the second side surface is concave, and the third lens has positive optical power, its first side surface is convex, and the second side surface is convex; or the second lens has negative optical power, its first side surface is concave, and the second side surface is concave, and the third lens has positive optical power, its first side surface is convex, and the second side surface is convex; or the second lens has positive optical power, its first side surface is convex, and the second side surface is convex, and the third lens has negative optical power, its first side surface is concave, and the second side surface is convex. is concave; or the second lens has positive optical power, its first side surface is convex, and the second side surface is concave, and the third lens has negative optical power, its first side surface is convex, and the second side surface is concave; or the second lens has positive optical power, its first side surface is concave, and the second side surface is convex, and the third lens has negative optical power, its first side surface is concave, and the second side surface is concave; or the second lens has positive optical power, its first side surface is convex, and the second side surface is convex, and the third lens has negative optical power, its first side surface is concave, and the second side surface is convex.

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

[0010] In one embodiment, the optical lens satisfies: the fifth lens has positive optical power, its first side surface is convex, and the second side surface is concave or convex, or its first side surface is concave and the second side surface is convex; or the fifth lens has negative optical power, its first side surface is convex, and the second side surface is concave, or its first side surface is concave and the second side surface is concave or convex.

[0011] In one embodiment, the optical lens satisfies: 0.3≤(1 / F23) / (1 / F)≤0.8, 0.2≤(1 / F4+1 / F5) / (1 / F)≤0.8, F5 / F≥1.8, wherein F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

[0012] In one embodiment, the optical lens satisfies: -0.35≤(1 / F23) / (1 / F)≤0.4, 0.8≤(1 / F4+1 / F5) / (1 / F)≤1.6, wherein F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

[0013] In one embodiment, the optical lens satisfies: 0.25≤R11 / F≤1.5, wherein R11 is the radius of curvature of the first side surface of the first lens, and F is the total effective focal length of the optical lens.

[0014] In one embodiment, the optical lens satisfies: R11 / SAG1≤7, wherein R11 is the radius of curvature of the first side surface of the first lens, and SAG1 is the sag of the first side surface of the first lens.

[0015] In one embodiment, the optical lens satisfies: -8≤F1 / F≤-1.1, wherein F is the total effective focal length of the optical lens, and F1 is the effective focal length of the first lens.

[0016] In one embodiment, the optical lens satisfies: 0.25≤(H / 2) / (F*tan(θ / 2))≤0.6, wherein F is the total effective focal length of the optical lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, and H is the image height corresponding to the maximum field of view angle of the optical lens.

[0017] In one embodiment, the optical lens satisfies: -10≤F2 / F3≤-0.1, wherein F2 is the effective focal length of the second lens, and F3 is the effective focal length of the third lens.

[0018] In one embodiment, the optical lens satisfies: 0.05≤d12 / TTL≤0.4, wherein d12 is the spacing distance between the first lens and the second lens along the optical axis, and TTL is the total optical length of the optical lens.

[0019] In one embodiment, the optical lens satisfies: 0.75≤F4 / F≤7, wherein F is the total effective focal length of the optical lens, and F4 is the effective focal length of the fourth lens.

[0020] In one embodiment, the optical lens satisfies: 2≤TTL / F≤6.5, wherein F is the total effective focal length of the optical lens, and TTL is the total optical length of the optical lens.

[0021] In one embodiment, the optical lens satisfies: 0.75≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.65, wherein F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

[0022] In one embodiment, the optical lens satisfies: d34 / TTL≤0.2, wherein TTL is the total optical length of the optical lens, and d34 is the spacing distance between the third lens and the fourth lens along the optical axis.

[0023] In one embodiment, the optical lens satisfies: d45 / TTL≤0.2, wherein TTL is the total optical length of the optical lens, and d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis.

[0024] In one embodiment, the optical lens meets the following requirements: 0.1 mm 2 ≤F×(1 / F4+1 / F5)≤2mm 2 , where F is the total effective focal length of the optical lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

[0025] In one embodiment, the optical lens satisfies: |F1 / F23|≤3, wherein F1 is the effective focal length of the first lens, and F23 is the combined focal length of the second lens and the third lens.

[0026] In one embodiment, the optical lens satisfies at least one of the following conditions: -0.3≤SAG1 / F1≤-0.05, |arctan(1 / K(S1)) / θ2|≤0.95, 0.1≤H(θ / 10) / (H / 2)≤0.5, 0.8≤|R21 / F|≤30, 0<|R21 / R32|≤25, 0.5≤d12 / (d34+d45)≤30, 0.12≤BFL / TTL≤0.4, 1≤TTL / Dmax≤3.5, 2≤TTL / H / FOV×180°≤10, 0.3rad -1 ≤D / H / θ≤1rad -1 , 1.4≤F / ENPD≤1.7, 0.15≤dj / TTL≤0.5, 0.4≤F / H≤1.5, wherein SAG1 is the sag of the first side surface of the first lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, arctan(1 / K(S1)) is the opening angle of the first side surface of the first lens at the maximum field of view angle of the optical lens, θ2 is the opening angle of the first side surface of the first lens at a distance of one quarter of the diameter from the center of the first lens, F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, R21 is the curvature radius of the first side surface of the second lens, R32 is the curvature radius of the second side surface of the third lens, and H is the optical lens. The image height corresponding to the maximum field of view angle, FOV is the maximum field of view angle of the optical lens, TTL is the total optical 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, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view angle of the optical lens, Dmax is the maximum value of the maximum light clearance apertures of the sides of all lenses corresponding to the maximum field of view angle of the optical lens, d12 is the spacing distance between the first lens and the second lens along the optical axis, d34 is the spacing distance between the third lens and the fourth lens along the optical axis, d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis, and dj is the thickness of the bonded component formed by bonding the second lens and the third lens.

[0027] In one embodiment, the optical lens satisfies at least one of the following conditions: 0.4≤R11 / F≤1.15, -0.21≤SAG1 / F1≤-0.085, 0.5≤R11 / SAG1≤7.8, 0.003≤|arctan(1 / K(S1)) / θ2|≤1.4, -5≤F1 / F≤-0.7, 1.25≤R11 / R12≤2.75, 88°≤(FOV×F) / H≤90°, 0.1≤H(θ / 10) / (H / 2)≤0.37, 0.38≤(H / 2) / (F*tan(θ / 2))≤0.4,1≤|R21 / F|≤28,0.1≤|R21 / R32|≤20,1≤|F23 / F|≤30,-8≤F2 / F3≤-0.15,0.08≤d12 / TTL≤0.22,0.001≤d34 / TTL≤0.2,0.001≤d45 / TTL≤0.038,0.75≤d12 / (d34+d45)≤28,1≤F4 / F≤6,1.4≤|F5 / F|≤5000,0.15mm 2 ≤F×(1 / F4+1 / F5)≤1.8mm 2 , 0.73≤F / H≤0.75, 0.17≤BFL / TTL≤0.21, 2≤TTL / Dmax≤2.9, 3.75≤TTL / F≤5.8, 4≤TTL / H / FOV×180°≤6.5, 0.5rad -1 ≤D / H / θ≤0.75rad -1, 1.55≤F / ENPD≤1.65, 0.18≤dj / TTL≤0.45, 0.8≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.5, 0.05≤|F1 / F23|≤2.5, 0.4≤(1 / F23) / (1 / F)≤0.7, 0.3≤(1 / F4+1 / F5) / (1 / F)≤0.7 and F5 / F≥2, and -0.28≤(1 / F23) / (1 / F)≤0.35 and 0.95≤(1 / F4+1 / F5) / (1 / F)≤1.35, where SAG1 is the sag of the first side surface of the first lens, θ is the arc value corresponding to the maximum field of view angle of the optical lens, arctan(1 / K(S1)) is the opening angle of the first side surface of the first lens at the maximum field of view angle of the optical lens, θ2 is the opening angle of the first side surface of the first lens at a distance of one quarter of the aperture from the center of the first lens, 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, and F3 is the effective focal length of the third lens. focal length, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F23 is the combined focal length of the second lens and the third 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, R21 is the curvature radius of the first side surface of the second lens, R32 is the curvature radius of the second side surface of the third 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, TTL is the total optical length of the optical lens, BFL is the optical backscatter of the optical lens focal length, ENPD is the entrance pupil diameter 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, Dmax is the maximum value of the maximum clear aperture of the sides of all lenses of the maximum clear aperture corresponding to the maximum field of view of the optical lens, d12 is the spacing distance between the first lens and the second lens along the optical axis, d34 is the spacing distance between the third lens and the fourth lens along the optical axis, d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis, and dj is the thickness of the cemented component formed by the second lens and the third lens being cemented.

[0028] In one embodiment, the optical lens satisfies at least one of the following conditions: 0.5879≤R11 / F≤1.0381, -0.187≤SAG1 / F1≤-0.1106, 1.3122≤R11 / SAG1≤5.7292, 0.0065≤|arctan(1 / K(S1)) / θ2|≤0.8541, -4.0571≤F1 / F≤-1.4378, 1.5702≤R11 / R 12≤2.4532, 88.4897°≤(FOV×F) / H≤89.5372°, 0.1545≤H(θ / 10) / (H / 2)≤0.3168, 0.3869≤(H / 2) / (F*tan(θ / 2))≤0.3915,1.3419≤|R21 / F|≤18.6406,0.2214≤|R21 / R32|≤13.0149,1.4913≤|F23 / F|≤24.2764,-7.096≤F2 / F3≤-0.2062,0.1101≤d12 / TTL≤0.1974,0.0043≤d34 / TTL≤0.134,0.00 43≤d45 / TTL≤0.0275, 1.1265≤d12 / (d34+d45)≤18.5575, 1.2597≤F4 / F≤4.7724, 1.7138≤|F5 / F|≤ 3242.9613,0.3144≤F×(1 / F4+1 / F5)≤1.3056,0.7374≤F / H≤0.7461,0.1772≤BFL / TTL≤0.2035,2 .1429≤TTL / Dmax≤2.7221, 4.1808≤TTL / F≤5.4831, 4.6692≤TTL / H / FOV×180°≤6.1178, 0.5532rad -1 ≤D / H / θ≤0.6979rad -1, 1.575≤F / ENPD≤1.6, 0.2175≤dj / TTL≤0.3842, 0.9205≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.3469, 0.0952≤|F1 / F23|≤1.5898, and 0.4875≤(1 / F23) / (1 / F)≤0.6706, 0.3144≤(1 / F4+1 / F5) / (1 / F)≤0.6146, and 2.4985≤F5 / F≤3242.9613 , and simultaneously satisfying -0.1741≤(1 / F23) / (1 / F)≤0.2433 and 1.0809≤(1 / F4+1 / F5) / (1 / F)≤1.3056, wherein SAG1 is the sagittal height of the first side surface of the first lens, θ is the arc value corresponding to the maximum field angle of the optical lens, arctan(1 / K(S1)) is the opening angle of the first side surface of the first lens at the maximum field angle of the optical lens, θ2 is the opening angle of the first side surface of the first lens at a distance of one quarter of the aperture from the center of the first lens, and F is the value of the optical lens. The total effective focal length of the lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F23 is the combined focal length of the second lens and the third 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, R21 is the curvature radius of the first side surface of the second lens, R32 is the curvature radius of the second side surface of the third 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, TTL is the total optical 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, 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, d12 is the spacing distance between the first lens and the second lens along the optical axis, d34 is the spacing distance between the third lens and the fourth lens along the optical axis, d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis, and dj is the thickness of the bonded component formed by bonding the second lens and the third lens.

[0029] Another aspect of the present application provides an electronic device, comprising the optical lens of any one of the above embodiments and an imaging element for converting an optical image formed by the optical lens into an electrical signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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: Figures 1 to 26 Schematic diagrams of the structures of optical lenses according to Embodiments 1 to 26 of the present application are respectively shown; Fig. 27A 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 Fig.28 Schematic diagrams of distortion curves of Examples 1 and 2 are shown, Fig.29 Schematic diagrams of distortion curves of Examples 3 and 4 are shown. Fig.30 Schematic diagrams of distortion curves of Examples 5 and 6 are shown. Fig.31 Schematic diagrams of distortion curves of Examples 7 and 8 are shown. Fig.32 Schematic diagrams of distortion curves of Examples 9 and 10 are shown. Fig.33 Schematic diagrams of distortion curves of Examples 11 and 12 are shown, Fig.34 Schematic diagrams of distortion curves of Examples 13 and 14 are shown, Fig.35 Schematic diagrams of distortion curves of Examples 15 and 16 are shown, Fig.36 Schematic diagrams of distortion curves of Examples 17 and 18 are shown, Fig.37 Schematic diagrams of distortion curves of Examples 19 and 20 are shown, Fig.38 Schematic diagrams of distortion curves of Examples 21 and 22 are shown, Fig.39 Schematic diagrams of distortion curves of Examples 23 and 24 are shown, Fig.40 Schematic diagrams of distortion curves of Examples 25 and 26 are shown. DETAILED DESCRIPTION

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

[0032] It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0033] It should be noted that the optical lenses provided in Examples 1 to 26 of the present application can all achieve good imaging quality, and their MTF (modulation transfer function) curve diagrams are relatively close. Therefore, the present application only exemplarily shows the MTF (modulation transfer function) curve diagram of the optical lens of Example 1, and the MTF (modulation transfer function) curve diagrams of the optical lenses of other embodiments are no longer shown one by one, and those skilled in the art should also be able to know based on the content disclosed in this application. All embodiments of the present application can meet the high resolution capability of 3M (million) pixels at 83 (line pairs / mm).

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] The features, principles and other aspects of the present application are described in detail below.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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).

[0045] In an exemplary embodiment, the first lens may have a negative optical power, and its first side surface may be a convex surface, and its second side surface may be a concave surface. The first lens has a negative optical power, which can diverge light to collect as many large-angle light rays as possible, and diverge the light rays into the rear optical system, thereby increasing the light throughput of the optical lens; the first side surface is convex, which is conducive to collecting more light rays, and is conducive to making the incident angle of the light rays smaller, which is conducive to allowing more light rays to enter the optical system and achieve a large field of view; the second side surface is concave, which can diverge the large-angle light rays passing through the first side surface of the first lens, which is conducive to the rear optical system correcting the aberration of the large-angle light rays, and achieving high resolution of the optical lens. In an exemplary embodiment, the first lens may be an aspherical surface, with a relatively flat edge and a small opening angle, which can meet the requirements for special distortion (large distortion) of the optical lens.

[0046] In an exemplary embodiment, the second lens may be cemented with the third lens to form a cemented member, which can achieve the following effects: The physical distance between the second lens and the third lens can be reduced, which is beneficial to miniaturization of the optical lens. At the same time, the sensitivity of the lens can be reduced, which is beneficial to correcting chromatic aberration.

[0047] The second lens and the third lens are glued together to share the distortion of the first lens. The second lens and the third lens are glued together, and then cooperate with the first lens, which is beneficial to adjust the light trend of the center and edge fields of view, and can share the distortion of the first lens, reduce the sensitivity of the optical lens, balance the astigmatism of the optical lens, improve image quality, and enhance resolution.

[0048] If the second lens and the third lens can form a cemented piece, and the fourth lens and the fifth lens are two single lenses, it is beneficial to achieve a small CRA and a long back focus.

[0049] The resolution quality of the optical lens can be improved, and the height of the light in the lens can be lowered to achieve better mechanical properties. In an exemplary embodiment, one of the second lens and the third lens has a positive optical power, and the other has a negative optical power, so that the light can be smoothly transitioned to the rear lens.

[0050] If the distance between the first lens and the second lens is increased on the basis of gluing the second lens and the third lens together, it is beneficial for the smooth transition of light from the first lens to the second lens and the reduction of light energy loss on the basis of miniaturization of the optical lens.

[0051] In an exemplary embodiment, the second lens may have positive focal length. The second lens may have positive focal length to converge light. In an exemplary embodiment, the second lens with positive focal length may be matched with the first lens with negative focal length. The second lens may converge light emitted from the first lens to reduce the total optical length of the optical lens, and the convergence of light may further reduce the aperture. In an exemplary embodiment, the first side surface of the second lens may be a convex surface, and the second side surface may be a concave surface. The first side surface of the second lens is a convex surface, which cooperates with the concave surface of the second side surface of the first lens to converge the light emitted from the first lens, smooth the light trend, and thus reduce the sensitivity of the optical lens, so that the light can enter the rear optical system smoothly, and as many large-angle light as possible can enter the rear optical system, which is beneficial to improve the illumination of the edge field of view, and at the same time, it is also beneficial to control the aperture of the rear lens and realize the miniaturization of the optical lens; the second side surface of the second lens is a concave surface, which can reduce the deflection of light at the second side surface, so as to reduce the generation of aberrations and improve the imaging quality of the optical lens. In an exemplary embodiment, the first side of the second lens may be a concave surface, and the second side may be a convex surface. The first side of the second lens is a concave surface, which can diverge light, increase the system illumination, and appropriately diverge the light emitted by the first lens, thereby balancing the aberration of each field of view light converging to the imaging surface, further improving the resolution; the second side of the second lens is a convex surface, which converges light, and deflects the light toward the optical axis, which is beneficial to reducing the aperture of the rear lens and realizing the miniaturization of the optical lens. In an exemplary embodiment, the first side of the second lens may be a convex surface. The first side of the second lens is a convex surface, which is beneficial to better converge the light emitted by the first lens, collect large-angle light, reduce light energy loss, improve the edge field of view illumination, and deflect the light toward the optical axis, effectively reducing the height of the light entering the third lens, so as to help reduce the aperture of the rear lens and realize the miniaturization of the optical lens.

[0052] In an exemplary embodiment, the second lens may have a negative optical power. When the second lens has a negative optical power, the light collected by the first lens can be further smoothly diverged, which is beneficial to expand the width of the light so that it reaches the size required for imaging. In an exemplary embodiment, the first side surface of the second lens may be a concave surface, and the second side surface may be a concave surface. When the first side surface and the first side surface of the second lens are both concave surfaces, the light can be diverged, which is beneficial to balance the aberration of the light in each field of view. In an exemplary embodiment, when the first side surface and the first side surface of the second lens are both concave surfaces, the second side surface of the third lens may be a convex surface. This combination is beneficial to the smooth transition of the light, making the light deflection smaller, thereby reducing the sensitivity of the optical lens, and reducing the loss of light energy, which is beneficial to improve the illumination of the edge field of view. In an exemplary embodiment, the first side surface of the second lens may be a convex surface, and the second side surface may be a concave surface. The first side surface of the second lens is a convex surface, which cooperates with the concave surface of the second side surface of the first lens to converge the light emitted through the first lens, and the incident angle of the light is small, which is beneficial to reducing the sensitivity of the optical lens; the image surface of the second lens is a concave surface, which can control the direction of the large-angle light at the edge of the lens, so that the light emitted through the second side surface of the second lens can make the subsequent optical system have a larger light receiving surface.

[0053] 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, which can converge light, so that the light smoothly transitions to the rear lens, improving image quality; it can achieve a larger amount of light input and increase the brightness of the image plane; and the third lens with positive focal length cooperates with the second lens with negative focal length, which can further reduce aberrations and improve resolution, while allowing the light to be effectively and smoothly converged at the end, so that the light can smoothly reach the imaging surface. The first side surface and the second side surface of the third lens can both be convex, so that the light emitted by the second lens is further converged, which is conducive to collecting large-angle light, reducing light energy loss, and reducing the height of the light emitted by the third lens, thereby realizing the miniaturization of the optical lens.

[0054] In an exemplary embodiment, the third lens may have a negative focal length. The third lens has a negative focal length, which is conducive to receiving the light converged by the second lens and further diverging it, increasing the amount of light entering the edge field of view, improving the illumination, and realizing large image plane imaging. In an exemplary embodiment, the first side surface of the third lens may be a concave surface, and the second side surface may be a concave surface. The first side surface and the second side surface of the third lens are both concave surfaces, which can make the light emitted through the third lens further diverge, which is conducive to achieving a larger amount of light entering, improving the brightness of the image plane, and can achieve a lower height of the emitted light at the same image height, thereby reducing the aperture of the front lens. In an exemplary embodiment, when the first side surface of the third lens is a concave surface, the second side surface of the second lens may be a convex surface. In this combination, it is conducive to the smooth entry of light into the rear optical system, reducing the sensitivity of the system, and can diverge the light converged by the second lens, so that the light can reach a higher imaging position, which is conducive to a small CRA. In an exemplary embodiment, the second side surface of the third lens may be a concave surface. The second side surface of the third lens is a convex surface, which can make the light emitted by the third lens converge appropriately, so that the large-angle light can better enter the rear optical system, which is beneficial to improve the illumination of the edge field of view, and can shorten the distance to the imaging surface, which is beneficial to reduce the total optical length of the optical lens and the diameter of the rear port of the lens. In an exemplary embodiment, the first side surface of the third lens can be a convex surface, and the second side surface can be a concave surface. In an exemplary embodiment, when the first side surface of the third lens is a convex surface, the second side surface of the second lens can be a concave surface. Under this combination, it is beneficial for the large-angle light to smoothly enter the rear optical system and improve the illumination of the edge field of view. The second side surface of the third lens is a concave surface, which can make the light emitted by the third lens further diverge, which is beneficial to achieve a larger amount of light entering and further improve the brightness of the image surface.

[0055] In an exemplary embodiment, the fourth lens may have a positive focal length. The fourth lens has a positive focal length, which can further converge the light passing through the third lens to balance the aberration generated by the front lens, achieve high resolution, and lower the height of the peripheral light, which is conducive to reducing the aperture of the rear lens, and thus is conducive to reducing the total optical length of the optical lens. In an exemplary embodiment, the first side of the fourth lens may be a concave surface, and the second side may be a convex surface. The first side of the fourth lens is a concave surface, which can receive the light of the third lens and diverge the light, so that the rear light converges more slowly, and the light in the edge field of view can be increased, which is conducive to matching with a large chip. The second side of the fourth lens is a convex surface, which can converge the light, and thus can reduce the defocus between different fields of view, which is conducive to improving the resolution, shortening the distance of the light to the image plane, and thus is conducive to reducing the total optical length of the optical lens. In an exemplary embodiment, the first side of the fourth lens is a convex surface, and the second side is a convex surface. The first side surface and the second side surface of the fourth lens are both convex, which is conducive to further convergence of the light emitted by the third lens, and then facilitates the smooth transition of the light to the rear light system, reduces the sensitivity of the fourth lens, and can also make the light reach the imaging surface faster, reducing the total optical length of the optical lens. In addition, the edge field light is deflected in the direction of the optical axis after passing through the fourth lens, which is conducive to reducing the diameter of the rear port of the system and is conducive to preliminary aberration correction of the incident light. In an exemplary embodiment, the first side surface of the fourth lens can be a convex surface, and the second side surface can be a concave surface. The first side surface of the fourth lens is a convex surface, which can make the light converge appropriately, which is conducive to the fourth lens receiving the light emitted by the third lens, and can lower the height of the light in the lens, so that the light trend is stable, and then the lens diameter at the rear end can be reduced. In addition, by lowering the height of the light in the lens, a larger lens edge thickness can be provided as much as possible under the condition of limited center thickness space, so as to achieve better mechanical properties. The second side surface of the fourth lens is a concave surface, which can diverge the light to increase the incident angle of the peripheral light to the first side surface of the fifth lens, and then it is conducive to improving the relative illumination of the peripheral field of view.

[0056] In an exemplary embodiment, the fifth lens may have a positive focal length. The fifth lens has a positive focal length, which is conducive to the rapid convergence of light to the imaging surface, slowing down the upward trend of light, avoiding the large field of view light reaching the imaging surface when the angle with the chip main light is too large to cause light energy loss, which is conducive to improving the illumination of the edge field of view, and is conducive to achieving a short total optical length. In an exemplary embodiment, the first side of the fifth lens may be a convex surface, and the second side may be a convex surface. The first side and the second side of the fifth lens are both convex surfaces, which can make the divergent light better converge to the rear optical system, improve the resolution, and help increase the back focus and improve the illumination. In an exemplary embodiment, the first side of the fifth lens is a convex surface, and the second side is a concave surface. The first side of the fifth lens is a convex surface, which is conducive to collecting the light entering through the fourth lens, and in combination with the second side of the fourth lens, the light can be smoothly transitioned and reduce sensitivity. The second side of the fifth lens is a concave surface, which is conducive to the proper divergence of light, so that the light can smoothly transition to the imaging surface, thereby making the angle of the light to the imaging surface meet the CRA requirements, and can improve the resolution and illumination. In an exemplary embodiment, the first side surface of the fifth lens may be a concave surface, and the second side surface may be a convex surface. In an exemplary embodiment, when the first side surface of the fifth lens is a concave surface, the second side surface of the fourth lens may be a convex surface. In this combination, it is conducive to the smooth transition of light to the rear optical system, and the light emitted by the fourth lens can be appropriately diverged, so that the light is deflected upward to expand the image surface. The second side surface of the fifth lens is a convex surface, which can have the effect of converging light, which is conducive to reducing the aperture of the rear lens and realizing the miniaturization of the optical lens.

[0057] In an exemplary embodiment, the fifth lens may have a negative focal length. Giving the fifth lens a negative focal length is conducive to properly diffusing the light, thereby slowing down the light trend at the rear end of the optical lens, achieving a long back focus, and dispersing the central light and the edge light of each field of view, thereby improving the imaging quality. In an exemplary embodiment, the first side surface of the fifth lens may be a convex surface, and the second side surface may be a concave surface. The first side surface of the fifth lens is a convex surface, which is conducive to proper convergence of light, so that as much peripheral large-angle light as possible smoothly transitions to the rear optical system, corrects astigmatism and field curvature, and improves the resolution of the optical system. The second side surface of the fifth lens is a concave surface, which is conducive to proper divergence of light, smooth transition to the imaging plane, so that the angle of light to the image plane meets the CRA requirements, and improves the resolution and illumination. In an exemplary embodiment, the first side surface of the fifth lens may be a concave surface, and the second side surface may be a convex surface. The first side surface of the fifth lens is a concave surface, which is conducive to the smooth transition of light to the rear optical system, and can properly diverge the light emitted by the fourth lens, so that the light is deflected upward and the image plane is expanded. The second side surface of the fifth lens is a convex surface, which can converge the light, which is beneficial to reducing the diameter of the back port. In an exemplary embodiment, the first side surface of the fifth lens can be a concave surface, and the second side surface can be a concave surface. Both the first side surface and the second side surface of the fifth lens are concave surfaces, which is beneficial to properly diverge the light, so that the light can smoothly transition to the image plane, and the angle of the light to the image plane meets the CRA requirements, and can also improve the resolution and illumination.

[0058] In an exemplary embodiment, an aperture for limiting the light beam may be provided between the first lens and the second lens and / or between the third lens and the fourth lens to further improve the imaging quality of the optical lens. The aperture is conducive to converging the light entering the optical system, balancing the aperture size of the lenses in the front and rear optical systems, and can achieve a small FNO of the optical lens and reduce the assembly sensitivity of the optical lens while smoothing the light trend. However, it should be noted that the position of the aperture disclosed here is only an example and not a limitation; in alternative embodiments, the aperture may also be set at other positions according to actual needs.

[0059] In an exemplary embodiment, at least one of the first to fifth lenses may be a spherical lens or an aspherical lens. In an exemplary embodiment, the first lens and / or the fourth lens may be an aspherical lens. The present application does not specifically limit the specific number of spherical lenses and aspherical lenses. When focusing on imaging quality, the number of aspherical lenses can be increased, or even all lenses use aspherical lenses. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After 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.

[0060] 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 S14 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 S14 to S1 and is finally projected onto a projection plane (not shown) disposed on the first side.

[0061] In an exemplary embodiment, the optical lens may satisfy: 0.25≤R11 / F≤1.5, wherein R11 is the radius of curvature of the first side surface of the first lens, and F is the total effective focal length of the optical lens. In an exemplary embodiment, the first side surface of the first lens is a convex surface. By making the optical lens satisfy the above conditional formula and controlling the ratio of the radius of curvature of the first side surface of the first lens to the total effective focal length of the optical lens, the convergence capability of the near-axis small field of view light can be improved, which is beneficial to achieve telephoto. Preferably, the optical lens may further satisfy: 0.4≤R11 / F≤1.15, which is more beneficial to achieve a large field of view, high resolution and telephoto of the optical lens. Preferably, the optical lens may further satisfy: 0.5879≤R11 / F≤1.0381, which is more beneficial to achieve a large field of view, high resolution and telephoto of the optical lens. In an exemplary embodiment, the optical lens satisfies 0.25≤R11 / F≤1.5 (or 0.4≤R11 / F≤1.15, 0.5879≤R11 / F≤1.0381) and R11 / SAG1≤7 (or 0.5≤R11 / SAG1≤7.8, 1.3122≤R11 / SAG1≤5.7292) at the same time, and the range of the sagittal height and the radius of curvature of the first side surface of the first lens is controlled, which is beneficial to reducing the incident height of the edge field of view light, introducing large distortion, and being beneficial to achieving a large angular resolution in the center, improving the imaging quality in the central area, and at the same time achieving the telephoto characteristics of the optical lens while taking into account a large field of view.

[0062] In an exemplary embodiment, the optical lens may satisfy: -0.3≤SAG1 / F1≤-0.05, wherein SAG1 is the sagittal height of the first side of the first lens, and F1 is the effective focal length of the first lens. By making the optical lens satisfy the above conditional formula, the proportion of the central field of view imaging range in the entire imaging orientation can be highlighted, so that the optical lens provided in the embodiment of the present application is compared with the lens with the same field of view angle, when matching the chip of the same size, the central field of view imaging range accounts for a larger proportion of the entire imaging range, and thus the optical lens provided in the embodiment of the present application has a higher imaging effect for distant objects, and more detailed information can be obtained. At the same time, the deflection angle of the light at the central field of view angle can be reduced, reducing the difficulty of aberration correction of the central field of view of the optical lens. Preferably, the optical lens can further satisfy: -0.21≤SAG1 / F1≤-0.085, which is more conducive to achieving a large field of view and high resolution of the optical lens. Preferably, the optical lens can further satisfy: -0.187≤SAG1 / F1≤-0.1106, which is more conducive to achieving a large field of view and high resolution of the optical lens.

[0063] In an exemplary embodiment, the optical lens may satisfy: R11 / SAG1≤7, wherein SAG1 is the sagittal height of the first side surface of the first lens, and R11 is the radius of curvature of the first side surface of the first lens. In an exemplary embodiment, the first lens is an aspheric surface, and the center of the first side surface thereof is convex, while the edge is flat and the edge opening angle is small. By making the optical lens satisfy the above conditional formula, the ratio of the sagittal height of the first side surface to the radius of curvature is reasonably set, which is conducive to collecting large-angle light of the edge field of view, reducing the height of the incident light of the edge field of view, and is conducive to achieving large distortion and improving the angular resolution of the center. With the smaller radius of curvature of the center of the first side surface of the first lens, the telephoto characteristics of the optical lens can be achieved while taking into account a large field of view. Preferably, the optical lens may further satisfy: 0.5≤R11 / SAG1≤7.8, which is more conducive to achieving large distortion and large angular resolution of the center of the optical lens. Preferably, the optical lens may further satisfy: 1.3122≤R11 / SAG1≤5.7292, which is more conducive to achieving large distortion and large angular resolution of the center of the optical lens.

[0064] In an exemplary embodiment, the optical lens may satisfy: |arctan(1 / K(S1)) / θ2|≤0.95, wherein arctan(1 / K(S1)) is the angle of the first side of the first lens at the maximum field of view angle of the optical lens, and θ2 is the angle of the first side of the first lens at a distance from the center of the first lens to one-quarter of the aperture (i.e., (D1 / 2) / 2, where D1 is the distance from the first side of the first lens to the center of the first lens). By making the optical lens satisfy the above conditional formula, the edge angle of the first side of the first lens is controlled to be smaller and the center angle is controlled to be larger, which is conducive to achieving large distortion of the edge field of view, making it easier to distinguish between edge field of view rays and center side field rays, and thus achieving large central angular resolution. In this embodiment, when the edge angle is positive or negative as the center angle, the edge curvature is in the same direction as the center curvature; when the edge angle is opposite in sign to the center angle, the first side of the first lens has an inverse curve. Preferably, the optical lens can further satisfy: 0.003≤|arctan(1 / K(S1)) / θ2|≤1.4, which is more conducive to achieving large distortion and large central angular resolution of the optical lens. Preferably, the optical lens can further satisfy: 0.0065≤|arctan(1 / K(S1)) / θ2|≤0.8541, which is more conducive to achieving large distortion and large central angular resolution of the optical lens.

[0065] In an exemplary embodiment, the optical lens may satisfy: -8≤F1 / F≤-1.1, wherein F is the total effective focal length of the optical lens, and F1 is the effective focal length of the first lens. By making the optical lens satisfy the above conditional formula and reasonably setting the effective focal length of the first lens, the light entering through the first side can be better compressed, which is beneficial for collecting large-angle light within a limited radial space. At the same time, it can reduce the height of the light incident on the second side of the first lens and reduce the lens aperture, which is beneficial for miniaturization. Preferably, the optical lens may further satisfy: -5≤F1 / F≤-0.7, which is more conducive to miniaturization, low sensitivity, and long focus of the optical lens. Preferably, the optical lens may further satisfy: -4.0571≤F1 / F≤-1.4378, which is more conducive to miniaturization, low sensitivity, and long focus of the optical lens.

[0066] In an exemplary embodiment, the optical lens may satisfy: 0.8≤R11 / R12≤4, wherein 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. By making the optical lens satisfy the above conditional formula, the first side of the first lens can be conducive to light convergence and to suppressing light. And by controlling the radius of curvature of the first side and the second side of the first lens, it is conducive to light entering the rear system, improving the brightness of the image plane, and at the same time assisting the smooth convergence of light, which is conducive to improving the imaging quality, and is conducive to the smooth transition of light to the rear optical system, so that the optical lens can collect more light into the lens, which is conducive to achieving telephoto and improving the resolution ability. In an exemplary embodiment, the second side of the first lens is a concave surface, so that the optical lens satisfies the above conditional formula, which is conducive to diverging light and reducing the small aperture at the front end. Preferably, the optical lens can further satisfy: 1.25≤R11 / R12≤2.75, which is more conducive to realizing the large field of view, miniaturization, low sensitivity, and high light transmission of the optical lens. Preferably, the optical lens can further satisfy 1.5702≤R11 / R12≤2.4532, which is more conducive to achieving a large field of view, miniaturization, low sensitivity, and high light throughput of the optical lens.

[0067] In an exemplary embodiment, the optical lens may satisfy: 80°≤(FOV×F) / H≤100°, wherein 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, and F is the total effective focal length of the optical lens. By making the optical lens satisfy the above conditional formula, the ratio between the maximum field of view of the optical lens, the total effective focal length and the image height corresponding to the maximum field of view is controlled within a certain range, which is conducive to the optical lens being able to take into account both long focal length and large field of view, and to achieve high angular resolution. Preferably, the optical lens may further satisfy: 88°≤(FOV×F) / H≤°90, which is more conducive to achieving the long focal length, large field of view and high resolution of the optical lens. Preferably, the optical lens may further satisfy: 88.4897°≤(FOV×F) / H≤89.5372°, which is more conducive to achieving the long focal length, large field of view and high resolution of the optical lens.

[0068] In an exemplary embodiment, the optical lens may satisfy: 0.1≤H(θ / 10) / (H / 2)≤0.5, wherein H is the image height corresponding to the maximum field angle of the optical lens, and θ is the radian value corresponding to the maximum field angle of the optical lens. By making the optical lens satisfy the above conditional formula, the optical lens provided in the embodiment of the present application can, compared with the related art, make the image height of the small angle area account for a larger proportion under the condition of a certain image height corresponding to the maximum field angle of the optical lens, which is more conducive to achieving a large resolution of the central angle. Preferably, the optical lens may further satisfy: 0.1≤H(θ / 10) / (H / 2)≤0.37, which is more conducive to achieving a large distortion of the optical lens. Preferably, the optical lens may further satisfy: 0.1545≤H(θ / 10) / (H / 2)≤0.3168, which is more conducive to achieving a large distortion of the optical lens.

[0069] In an exemplary embodiment, the optical lens may satisfy: 0.25≤(H / 2) / (F*tan(θ / 2))≤0.6, wherein H is the image height corresponding to the maximum field angle of the optical lens, θ is the radian value corresponding to the maximum field angle of the optical lens, and F is the total effective focal length of the optical lens. The greater the difference between the actual image height and the ideal image height, the greater the edge field distortion. By making the optical lens satisfy the above conditional formula, the optical lens provided in the embodiment of the present application can be more conducive to achieving a larger resolution in the central field of view in the case of a large field of view. Preferably, the optical lens may further satisfy: 0.38≤(H / 2) / (F*tan(θ / 2))≤0.4, which is more conducive to achieving large distortion of the optical lens. Preferably, the optical lens may further satisfy: 0.3869≤(H / 2) / (F*tan(θ / 2))≤0.3915, which is more conducive to achieving large distortion of the optical lens.

[0070] In an exemplary embodiment, the optical lens may satisfy: 0.8≤|R21 / F|≤30, wherein R21 is the radius of curvature of the first side of the second lens, and F is the total effective focal length of the optical lens. By making the optical lens satisfy the above conditional formula and reasonably setting the radius of curvature of the first side of the second lens, it is beneficial to correct aberrations, smooth the trend of auxiliary light, and improve imaging quality to achieve high resolution. In this embodiment, the first side of the second lens is matched with the first lens to adjust the trend of light in the center and edge fields of view, balance the astigmatism of the first lens, improve imaging quality, and improve resolution. Preferably, the optical lens may further satisfy: 1≤|R21 / F|≤28, which is more conducive to achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 1.3419≤|R21 / F|≤18.6406, which is more conducive to achieving high resolution of the optical lens.

[0071] In an exemplary embodiment, the optical lens may satisfy: 0<|R21 / R32|≤25, wherein R21 is the radius of curvature of the first side of the second lens, and R32 is the radius of curvature of the second side of the third lens. By making the optical lens satisfy the above conditional formula, the ratio of the radius of curvature of the first side of the second lens to the radius of curvature of the second side of the third lens is reasonably set, so that the light has a smooth trend when it is incident from the first side to the second side, and the light deflection is small, which is conducive to achieving high resolution and reducing the sensitivity of the lens. Preferably, the optical lens may further satisfy: 0.1≤|R21 / R32|≤20, which is more conducive to achieving high resolution and low sensitivity of the optical lens. Preferably, the optical lens may further satisfy: 0.2214≤|R21 / R32|≤13.0149, which is more conducive to achieving high resolution and low sensitivity of the optical lens.

[0072] In an exemplary embodiment, the optical lens may satisfy: 0.5≤|F23 / F|≤35, wherein F is the total effective focal length of the optical lens, and F23 is the combined focal length of the second lens and the third lens. In an exemplary embodiment, the second lens may be bonded to the third lens to form a bonded component. By making the optical lens satisfy the above conditional formula and rationally controlling the combined focal length of the bonded component, the light may be smoothly transitioned to the rear optical system. In addition, the light emitted by the bonded component is less deflected, which is conducive to achieving high resolution. It can also increase the ability of the bonded lens to regulate light, which is conducive to achieving better resolution. Preferably, the optical lens may further satisfy: 1≤|F23 / F|≤30, which is more conducive to achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 1.4913≤|F23 / F|≤24.2764, which is more conducive to achieving high resolution of the optical lens.

[0073] In an exemplary embodiment, the optical lens may satisfy: -10≤F2 / F3≤-0.1, wherein F2 is the effective focal length of the second lens, and F3 is the effective focal length of the third lens. In an exemplary embodiment, one of the second lens and the third lens has a positive focal length, and the other has a negative focal length. By making the optical lens satisfy the above conditional formula, the focal length ratio of the second lens and the third lens is controlled, which is conducive to controlling the light trend, and can converge / diverge the light diverged by the first lens, reduce the height of the light emitted from the second side of the third lens, and reduce the aperture of the third lens, which is conducive to miniaturization of the optical lens, and is also conducive to correcting aberrations and achieving high resolution. Preferably, the optical lens may further satisfy: -8≤F2 / F3≤-0.15, which is more conducive to miniaturization of the optical lens. Preferably, the optical lens may further satisfy: -7.096≤F2 / F3≤-0.2062, which is more conducive to miniaturization of the optical lens.

[0074] In an exemplary embodiment, the optical lens may satisfy: 0.05≤d12 / TTL≤0.4, wherein d12 is the spacing distance between the first lens and the second lens along the optical axis, and TTL is the total optical length of the optical lens. By making the optical lens satisfy the above conditional formula, the spacing distance between the first lens and the second lens along the optical axis is made larger, which is conducive to smooth transition of the light emitted by the first lens, reducing the sensitivity of the first lens, and improving the resolution. In an exemplary embodiment, the second lens and the third lens are glued together, and on this basis, the spacing distance between the first lens and the second lens along the optical axis is made larger, which can be conducive to smooth transition of light, reduce light energy loss, and achieve better resolution on the basis of miniaturization. Preferably, the optical lens may further satisfy: 0.08≤d12 / TTL≤0.22, which is more conducive to achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 0.1101≤d12 / TTL≤0.1974, which is more conducive to achieving high resolution of the optical lens.

[0075] In an exemplary embodiment, the optical lens may satisfy: d34 / TTL≤0.2, wherein d34 is the distance between the third lens and the fourth lens along the optical axis, and TTL is the total optical length of the optical lens. By making the optical lens satisfy the above conditional formula, the distance between the third lens and the fourth lens along the optical axis is reduced, which is beneficial to reducing the total optical length of the optical lens and achieving miniaturization. In an exemplary embodiment, making the focal length of the fourth lens smaller and satisfying the above conditional formula at the same time, the fourth lens can quickly compress the light emitted by the third lens, reduce the height of the emitted light, and reduce the lens aperture, which is beneficial to miniaturization. Preferably, the optical lens may further satisfy: 0.001≤d34 / TTL≤0.2, which is more conducive to miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 0.0043≤d34 / TTL≤0.134, which is more conducive to miniaturization of the optical lens.

[0076] In an exemplary embodiment, the optical lens may satisfy: d45 / TTL≤0.2, wherein d45 is the distance between the fourth lens and the fifth lens along the optical axis, and TTL is the total optical length of the optical lens. By making the optical lens satisfy the above conditional formula, the distance between the fourth lens and the fifth lens along the optical axis is reduced, which is beneficial to reducing the total optical length of the optical lens and achieving miniaturization. In an exemplary embodiment, making the focal length of the fourth lens smaller and satisfying the above conditional formula at the same time, the fourth lens can quickly converge light, thereby shortening the distance between the fourth lens and the fifth lens along the optical axis, which is beneficial to miniaturization. Preferably, the optical lens may further satisfy: 0.001≤d45 / TTL≤0.038, which is more conducive to miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 0.0043≤d45 / TTL≤0.0275, which is more conducive to miniaturization of the optical lens.

[0077] In an exemplary embodiment, the optical lens may satisfy: 0.5≤d12 / (d34+d45)≤30, wherein d12 is the spacing distance between the first lens and the second lens along the optical axis, d34 is the spacing distance between the third lens and the fourth lens along the optical axis, and d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis. By making the optical lens satisfy the above conditional formula, the spacing distance between the first lens and the second lens along the optical axis is larger, which is conducive to a smooth transition of light, and the spacing distance between the third lens and the fourth lens along the optical axis and the spacing distance between the fourth lens and the fifth lens along the optical axis are smaller, which is conducive to miniaturization. Satisfying the conditional formula range is conducive to high resolution while taking into account miniaturization. Controlling the upper limit of the conditional formula is conducive to miniaturization. Preferably, the optical lens may further satisfy: 0.75≤d12 / (d34+d45)≤28, which is more conducive to miniaturization of the optical lens. Preferably, the optical lens can further satisfy: 1.1265≤d12 / (d34+d45)≤18.5575, which is more conducive to miniaturization of the optical lens.

[0078] In an exemplary embodiment, the optical lens may satisfy: 0.75≤F4 / F≤7, wherein F4 is the effective focal length of the fourth lens, and F is the total effective focal length of the optical lens. By making the optical lens satisfy the above conditional formula, the effective focal length of the fourth lens is made smaller, so that the light passing through the fourth lens can be better compressed, which is beneficial to the transition of large-angle light in a limited space, and to achieve high resolution and miniaturization. At the same time, it is beneficial to reduce the height of the outgoing light and reduce the aperture of the rear end lens, which is beneficial to miniaturization. Preferably, the optical lens may further satisfy: 1≤F4 / F≤6, which is more conducive to miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 1.2597≤F4 / F≤4.7724, which is more conducive to miniaturization of the optical lens.

[0079] In an exemplary embodiment, the optical lens may satisfy: |F5 / F|≥1, where F is the total effective focal length of the optical lens, and F5 is the effective focal length of the fifth lens. By making the optical lens satisfy the above conditional formula, the effective focal length of the fifth lens is made larger, which is conducive to lengthening the back focus. And by making the light convergence or divergence deflection angle small, the exit angle of the second side light of the fifth lens can be controlled within a certain range, which is conducive to achieving a small CRA, correcting lens aberrations, reducing lens sensitivity, and correcting the chromatic aberration of the light lens, which is conducive to improving the imaging quality of the lens. Preferably, the optical lens may further satisfy: 1.4≤|F5 / F|≤5000, which is more conducive to achieving a long back focus, low sensitivity, and a small CRA of the optical lens, and improving the imaging quality. Preferably, the optical lens may further satisfy: 1.7138≤|F5 / F|≤3242.9613, which is more conducive to achieving a long back focus, low sensitivity, and a small CRA of the optical lens, and improving the imaging quality.

[0080] In an exemplary embodiment, the optical lens may satisfy: 0.1 mm 2 ≤F×(1 / F4+1 / F5)≤2mm 2 , where F is the total effective focal length of the optical lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens. The fourth lens and the fifth lens as a whole play the role of converging light. When the total effective focal length of the optical lens is constant, making the focal length of the fourth lens smaller is conducive to light convergence; making the focal length of the fifth lens larger is conducive to a smooth transition of light, which is conducive to reducing the rear port diameter, lengthening the back focus, and achieving miniaturization, small CRA and other effects. By making the optical lens meet the above conditional formula, it is conducive to making the light converge smoothly to the imaging surface, thereby improving the imaging quality and achieving high resolution. Preferably, the optical lens can further meet: 0.15mm 2 ≤F×(1 / F4+1 / F5)≤1.8mm 2 , which is more conducive to achieving high resolution and miniaturization of optical lenses. Preferably, the optical lens can further meet the following requirements: 0.3144mm 2 ≤F×(1 / F4+1 / F5)≤1.3056mm 2 , which is more conducive to achieving high resolution and miniaturization of optical lenses.

[0081] In an exemplary embodiment, the optical lens may satisfy: 0.4≤F / H≤1.5, wherein F is the total effective focal length of the optical lens, and H is the image height corresponding to the maximum field angle of the optical lens. By making the optical lens satisfy the above conditional formula, the total effective focal length of the optical lens and the image height corresponding to the maximum field angle are controlled within a certain range, which is conducive to improving the resolution. Preferably, the optical lens may further satisfy: 0.73≤F / H≤0.75, which is more conducive to achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 0.7374≤F / H≤0.7461, which is more conducive to achieving high resolution of the optical lens.

[0082] In an exemplary embodiment, the optical lens may satisfy: 0.12≤BFL / TTL≤0.4, 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 requirements for the back focus length of the optical lens can be met, while being conducive to miniaturization. Preferably, the optical lens may further satisfy: 0.17≤BFL / TTL≤0.21, which is more conducive to achieving the back focus length of the optical lens while taking into account high resolution. Preferably, the optical lens may further satisfy: 0.1772≤BFL / TTL≤0.2035, which is more conducive to achieving the back focus length of the optical lens while taking into account high resolution.

[0083] In an exemplary embodiment, the optical lens may satisfy: 1≤TTL / Dmax≤3.5, 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. The smaller the ratio of the distance from the center of the first side surface of the first lens to the imaging surface of the optical lens (the total optical length of the optical lens) to 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 more compact the entire optical system is. By making the optical lens satisfy the above conditional formula, the miniaturization of the optical lens can be achieved. Preferably, the optical lens may further satisfy: 2≤TTL / Dmax≤2.9, which is more conducive to the miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 2.1429≤TTL / Dmax≤2.7221, which is more conducive to the miniaturization of the optical lens.

[0084] In an exemplary embodiment, the optical lens may satisfy: 2≤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. By making the optical lens satisfy the above conditional formula, it is beneficial to miniaturization and telephoto. Preferably, the optical lens may further satisfy: 3.75≤TTL / F≤5.8, which is more conducive to miniaturization of the optical lens while taking into account high resolution. Preferably, the optical lens may further satisfy: 4.1808≤TTL / F≤5.4831, which is more conducive to miniaturization of the optical lens while taking into account high resolution.

[0085] In an exemplary embodiment, the optical lens may satisfy: 2≤TTL / H / FOV×180°≤10, wherein H is the image height corresponding to the maximum field of view angle of the optical lens, FOV is the maximum field of view angle 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, it is conducive to achieving miniaturization while taking into account a large field of view and a large image surface. Preferably, the optical lens may further satisfy: 4≤TTL / H / FOV×180°≤6.5, which is more conducive to achieving miniaturization, a large field of view and high resolution of the optical lens. Preferably, the optical lens may further satisfy: 4.6692≤TTL / H / FOV×180°≤6.1178, which is more conducive to achieving miniaturization, a large field of view and high resolution of the optical lens.

[0086] In an exemplary embodiment, the optical lens can meet: 0.3 rad -1 ≤D / H / θ≤1rad -1, where D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, θ is the arc value corresponding to the maximum field of view of the optical lens, and H is the image height corresponding to the maximum field of view of the optical lens. By making the optical lens meet the above conditional formula, it is conducive to achieving a small front end aperture and miniaturization of the optical lens. Preferably, the optical lens can further meet: 0.5rad -1 ≤D / H / θ≤0.75rad -1 , which is more conducive to realizing the small diameter and miniaturization of the optical lens. Preferably, the optical lens can further meet the following requirements: 0.5532rad -1 ≤D / H / θ≤0.6979rad -1 , which is more conducive to realizing the small aperture and miniaturization of optical lenses.

[0087] In an exemplary embodiment, the optical lens may satisfy: 1.4≤F / ENPD≤1.7, wherein F is the total effective focal length of the optical lens, and ENPD is the entrance pupil diameter of the optical lens. By making the optical lens satisfy the above conditional formula, a small FNO can be achieved, and it is beneficial to increase the amount of light passing through, so that the brightness of the peripheral field of view and the central field of view is more uniform. Preferably, the optical lens may further satisfy: 1.55≤F / ENPD≤1.65, which is more conducive to achieving a large aperture and high light passing through the optical lens. Preferably, the optical lens may further satisfy: 1.575≤F / ENPD≤1.6, which is more conducive to achieving a large aperture and high light passing through the optical lens.

[0088] In an exemplary embodiment, the optical lens may satisfy: 0.15≤dj / TTL≤0.5, wherein dj is the thickness of the bonded piece formed by bonding the second lens and the third lens, and TTL is the total optical length of the optical lens. In an exemplary embodiment, the second lens and the third lens are bonded to form a bonded piece. By making the optical lens satisfy the above conditional formula, the center thickness of the bonded piece may be appropriately increased within a certain range, which is beneficial to enhancing the ability to control the light of the optical lens, so as to facilitate controlling more light to enter the rear optical system and improve the relative illumination. Preferably, the optical lens may further satisfy: 0.18≤dj / TTL≤0.45, which is more beneficial to achieving high relative illumination of the optical lens. Preferably, the optical lens may further satisfy: 0.2175≤dj / TTL≤0.3842, which is more beneficial to achieving high relative illumination of the optical lens.

[0089] In an exemplary embodiment, the optical lens may satisfy: 0.3≤(1 / F23) / (1 / F)≤0.8, 0.2≤(1 / F4+1 / F5) / (1 / F)≤0.8, and F5 / F≥1.8, wherein F is the total effective focal length of the optical lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, and F23 is the combined focal length of the second lens and the third lens. In an exemplary embodiment, the second lens may form a cemented part with the third lens. By making the optical lens satisfy the above conditional formula, it is advantageous to control the effective focal lengths of the cemented part formed by the second lens and the third lens and the fourth lens and the fifth lens, so that the light can converge quickly and then smoothly transition after being diverged by the first lens, wherein the cemented part can converge the light quickly, and further increase the light regulation capability of the cemented lens, which is advantageous to achieve better resolution; the fourth lens and the fifth lens can smoothly transition the light, and can make the light smoothly transition to the rear lens, which is advantageous to reduce CRA, reduce sensitivity, and improve resolution. Preferably, the optical lens can further satisfy: 0.4≤(1 / F23) / (1 / F)≤0.7, 0.3≤(1 / F4+1 / F5) / (1 / F)≤0.7 and F5 / F≥2, which is more conducive to achieving high resolution and miniaturization of the optical lens. Preferably, the optical lens can further satisfy: 0.4875≤(1 / F23) / (1 / F)≤0.6706, 0.3144≤(1 / F4+1 / F5) / (1 / F)≤0.6146 and 2.4985≤F5 / F≤3242.9613, which is more conducive to achieving high resolution and miniaturization of the optical lens.

[0090] In an exemplary embodiment, the optical lens may satisfy: -0.35≤(1 / F23) / (1 / F)≤0.4 and 0.8≤(1 / F4+1 / F5) / (1 / F)≤1.6, wherein F is the total effective focal length of the optical lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, and F23 is the combined focal length of the second lens and the third lens. In an exemplary embodiment, the second lens and the third lens may form a cemented part. By making the optical lens satisfy the above conditional formula, the light can be smoothly transitioned and then quickly converged after being diverged by the first lens. The cemented part can smoothly transition the light and smoothly transition the light to the rear optical system, which is conducive to better correction of chromatic aberration and improvement of imaging quality; the fourth lens and the fifth lens quickly converge the light, which is conducive to the rapid convergence of the light to the imaging surface, avoiding light energy loss, and can improve the illumination of the edge field of view, while facilitating miniaturization. Preferably, the optical lens can further satisfy: -0.28≤(1 / F23) / (1 / F)≤0.35 and 0.95≤(1 / F4+1 / F5) / (1 / F)≤1.35, which is more conducive to achieving high resolution and miniaturization of the optical lens. Preferably, the optical lens can further satisfy: 1.0809≤(1 / F4+1 / F5) / (1 / F)≤1.3056, which is more conducive to achieving high resolution and miniaturization of the optical lens.

[0091] In an exemplary embodiment, the optical lens may satisfy: 0.75≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.65, wherein F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, 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, after the light is diverged by the first lens, the second lens, the third lens, the fourth lens, and the fifth lens can regulate the overall trend of the light, so that the light is smoothly converged to the imaging surface, which is conducive to reducing sensitivity, improving relative illumination, reducing CRA, improving resolution quality, and achieving miniaturization. Preferably, the optical lens may further satisfy: 0.8≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.5, which is more conducive to achieving high resolution and miniaturization of the optical lens. Preferably, the optical lens can further satisfy: 0.9205≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.3469, which is more conducive to achieving high resolution and miniaturization of the optical lens.

[0092] In an exemplary embodiment, the optical lens may satisfy: |F1 / F23|≤3, wherein F23 is the combined focal length of the second lens and the third lens, and F1 is the effective focal length of the first lens. In an exemplary embodiment, the second lens and the third lens may be glued together to form a glued component. By making the optical lens satisfy the above conditional formula and reasonably setting the ratio of the effective focal lengths of the first lens and the glued component, it is beneficial to adjust the light trends of the center and edge fields of view, so that the glued component can share the distortion of the first lens, reduce the sensitivity of the optical lens, balance the astigmatism of the optical lens, improve the imaging quality, and enhance the resolution. Preferably, the optical lens may further satisfy: 0.05≤|F1 / F23|≤2.5, which is more conducive to achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 0.0952≤|F1 / F23|≤1.5898, which is more conducive to achieving high resolution of the optical lens.

[0093] 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.

[0094] 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 aspheric lenses. In applications where temperature stability requirements are lower, the first lens to the sixth lens in the optical lens can also be made of plastic. Making optical lenses 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.

[0095] According to the above-mentioned embodiment of the present application, the optical lens has at least one beneficial effect such as large field of view, small aperture, high luminous flux, miniaturization, high resolution, low sensitivity, long back focus, small CRA, telephoto, large aperture, high relative illumination, large distortion, and large central angular resolution through the reasonable setting of parameters such as lens shape and optical focal length.

[0096] 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

[0097] 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.

[0098] 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.

[0099] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0100] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0101] 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.

[0102] 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.

[0103] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0104] The second lens and the third lens are cemented together.

[0105] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0106] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0107] The optical lens provided in the present application can be used as, for example, a vehicle-mounted lens. In this case, Figure 1IMA represents the imaging surface, and the light from the object passes through the surfaces S1 to S14 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 S14 to S1 and is finally projected onto a projection plane (not shown) disposed on the first side.

[0108] 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.

[0109] Table 1

[0110] In this embodiment, the first side surface S1 and the second side surface S2 of the first lens L1 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: (1) 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 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 1.

[0111] Table 2

[0112] Fig. 27 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. Fig. 27 As shown, in this embodiment, in terms of MTF, the MTF (Modulation Transfer Function) value of the central field light of the optical lens at the spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.86, 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 in this embodiment has a high resolution capability. The MTF curves of other embodiments are similar to the above curves and will not be repeated here. Example 2

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

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

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

[0116] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0117] 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.

[0118] 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.

[0119] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0120] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0121] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0122] Table 3 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 2. Table 4 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 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.

[0123] Table 3

[0124] Table 4

[0125] In this embodiment, in terms of MTF, the MTF value of the central field light of the optical lens at the spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.86. Based on the above values, the optical lens provided by this embodiment has a higher resolution capability.

[0126] Fig.28 Schematic diagrams of distortion curves of the optical lenses of Examples 1 and 2 are shown. Example 3

[0127] The following reference Figure 3 The optical lens according to Embodiment 3 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 3 A schematic structural diagram of an optical lens according to Example 3 of the present application is shown.

[0128] like Figure 3 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0129] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0130] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0131] 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.

[0132] 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.

[0133] The fifth lens L5 has negative refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0134] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0135] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0136] 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 cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 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.

[0137] Table 5

[0138] Table 6 Example 4

[0139] The following reference Figure 4 The optical lens according to Embodiment 4 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 4 A schematic structural diagram of an optical lens according to Example 4 of the present application is shown.

[0140] 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.

[0141] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0142] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0143] 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.

[0144] 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.

[0145] The fifth lens L5 has negative refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0146] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0147] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0148] Table 7 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 4. Table 8 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 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-mentioned Example 1.

[0149] Table 7

[0150] Table 8

[0151] In Examples 3 and 4, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.84. Based on the above values, the optical lenses provided by Examples 3 and 4 have a high resolution.

[0152] Fig.29 Schematic diagrams of distortion curves of the optical lenses of Examples 3 and 4 are shown. Example 5

[0153] The following reference Figure 8 The optical lens according to Embodiment 5 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 8 A schematic structural diagram of an optical lens according to Example 5 of the present application is shown.

[0154] 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.

[0155] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0156] 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 convex surface.

[0157] The third lens L3 has negative refractive power, and its first side surface S5 is a concave surface, and its second side surface S6 is a concave surface.

[0158] 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.

[0159] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0160] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0161] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0162] 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 S1 and S2 of the aspheric lens L1 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.

[0163] Table 9

[0164] Table 10 Example 6

[0165] The following reference Fig. 9 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. 9 A schematic structural diagram of an optical lens according to Example 6 of the present application is shown.

[0166] like Fig. 9 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0167] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0168] 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 convex surface.

[0169] The third lens L3 has negative refractive power, and its first side surface S5 is a concave surface, and its second side surface S6 is a concave surface.

[0170] 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.

[0171] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0172] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0173] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0174] 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 S1 and S2 of the aspheric lens L1 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.

[0175] Table 11

[0176] Table 12

[0177] In Examples 5 and 6, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.83. Based on the above values, the optical lenses provided by Examples 5 and 6 have a high resolution.

[0178] Fig.30 Schematic diagrams of distortion curves of the optical lenses of Examples 5 and 6 are shown. Example 7

[0179] The following reference Figure 7 An optical lens according to Embodiment 7 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 7 A schematic structural diagram of an optical lens according to Example 7 of the present application is shown.

[0180] like Figure 7 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0181] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0182] 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 convex surface.

[0183] The third lens L3 has negative refractive power, and its first side surface S5 is concave, and its second side surface S6 is convex.

[0184] 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.

[0185] The fifth lens L5 has negative refractive power, and its first side surface S9 is concave, and its second side surface S10 is convex.

[0186] The first side surface S1 of the first lens L1 has an inverse curve.

[0187] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0188] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0189] Table 13 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 7. Table 14 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 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.

[0190] Table 13

[0191] Table 14 Example 8

[0192] The following reference Figure 8 The optical lens according to Embodiment 8 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Figure 8 A schematic structural diagram of an optical lens according to Example 8 of the present application is shown.

[0193] 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.

[0194] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0195] 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 convex surface.

[0196] The third lens L3 has negative refractive power, and its first side surface S5 is concave, and its second side surface S6 is convex.

[0197] 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.

[0198] The fifth lens L5 has negative refractive power, and its first side surface S9 is concave, and its second side surface S10 is convex.

[0199] The first side surface S1 of the first lens L1 has an inverse curve.

[0200] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0201] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0202] Table 15 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 8. Table 16 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 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.

[0203] Table 15

[0204] Table 16

[0205] In Examples 7 and 8, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.88. Based on the above values, the optical lenses provided by Examples 7 and 8 have a high resolution.

[0206] Fig.31 Schematic diagrams of distortion curves of the optical lenses of Examples 7 and 8 are shown. Example 9

[0207] The following reference Fig. 9 The optical lens according to Embodiment 9 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig. 9 A schematic structural diagram of an optical lens according to Example 9 of the present application is shown.

[0208] like Fig. 9 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0209] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0210] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0211] 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.

[0212] The fourth lens L4 has positive refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0213] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0214] The first side surface S1 of the first lens L1 has an inverse curve.

[0215] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0216] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0217] Table 1 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 S1 and S2 of the aspheric lens L1 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.

[0218] Table 17

[0219] Table 18 Example 10

[0220] The following reference Fig.10The optical lens according to Embodiment 10 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.10 A schematic structural diagram of an optical lens according to Example 10 of the present application is shown.

[0221] 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.

[0222] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0223] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0224] 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.

[0225] The fourth lens L4 has positive refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0226] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0227] The first side surface S1 of the first lens L1 has an inverse curve.

[0228] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0229] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0230] Table 19 shows the radius of curvature 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 S1 and S2 of the aspheric lens L1 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.

[0231] Table 19

[0232] Table 20

[0233] 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 83lp / mm (83 line pairs / mm) exceeds 0.8. Based on the above values, the optical lenses provided by Examples 9 and 10 have a high resolution.

[0234] Fig.32 Schematic diagrams of distortion curves of the optical lenses of Examples 9 and 10 are shown. Embodiment 11

[0235] The following reference Fig.11 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.11 A schematic structural diagram of an optical lens according to Example 11 of the present application is shown.

[0236] like Fig.11 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0237] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0238] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0239] 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.

[0240] 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.

[0241] The fifth lens L5 has negative refractive power, and its first side surface S9 is concave, and its second side surface S10 is concave.

[0242] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0243] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0244] Table 21 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 11. Table 22 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 11, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0245] Table 21

[0246] Table 22 Example 12

[0247] The following reference Fig.12 The optical lens according to Embodiment 12 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.12 A schematic structural diagram of an optical lens according to Example 12 of the present application is shown.

[0248] like Fig.12 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0249] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0250] The second lens L2 has negative refractive power, and its first side surface S3 is a convex surface, and its second side surface S4 is a concave surface.

[0251] 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.

[0252] 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.

[0253] The fifth lens L5 has negative refractive power, and its first side surface S9 is concave, and its second side surface S10 is concave.

[0254] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0255] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0256] Table 23 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 12. Table 24 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 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-mentioned Example 1.

[0257] Table 23

[0258] Table 24

[0259] In Examples 11 and 12, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.81. Based on the above values, the optical lenses provided by Examples 11 and 12 have a high resolution.

[0260] Fig.33 Schematic diagrams of distortion curves of the optical lenses of Examples 11 and 12 are shown. Embodiment 13

[0261] The following reference Fig.13 The optical lens according to Embodiment 13 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.13 A schematic structural diagram of an optical lens according to Example 13 of the present application is shown.

[0262] like Fig.13 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0263] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0264] 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 concave surface.

[0265] 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.

[0266] The fourth lens L4 has positive refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0267] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0268] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0269] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0270] Table 25 shows the radius of curvature 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 S1 and S2 of the aspheric lens L1 that can be used in Example 13, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0271] Table 25

[0272] Table 26 Embodiment 14

[0273] The following reference Fig.14 The optical lens according to Embodiment 14 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.14 A schematic structural diagram of an optical lens according to Example 14 of the present application is shown.

[0274] 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.

[0275] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0276] 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 concave surface.

[0277] 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.

[0278] The fourth lens L4 has positive refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0279] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0280] The optical lens may further include a stop STO, and the stop STO may be disposed between the first lens L1 and the second lens L2.

[0281] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0282] Table 27 shows the radius of curvature 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 S1 and S2 of the aspheric lens L1 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.

[0283] Table 27

[0284] Table 28

[0285] In Examples 13 and 14, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.83. Based on the above values, the optical lenses provided by Examples 13 and 14 have a high resolution.

[0286] Fig.34 Schematic diagrams of distortion curves of the optical lenses of Examples 13 and 14 are shown. Embodiment 15

[0287] The following reference Fig.15 The optical lens according to Embodiment 15 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.15 A schematic structural diagram of an optical lens according to Example 15 of the present application is shown.

[0288] like Fig.15 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0289] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0290] 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 convex surface.

[0291] The third lens L3 has negative refractive power, and its first side surface S5 is a concave surface, and its second side surface S6 is a concave surface.

[0292] The fourth lens L4 has positive refractive power, and its first side surface S7 is concave, and its second side surface S8 is convex.

[0293] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0294] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0295] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0296] Table 29 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 15. Table 30 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 15, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0297] Table 29

[0298] Table 30 Example 16

[0299] The following reference Fig.16 The optical lens according to Embodiment 16 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.16 A schematic structural diagram of an optical lens according to Example 16 of the present application is shown.

[0300] 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.

[0301] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0302] 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 convex surface.

[0303] The third lens L3 has negative refractive power, and its first side surface S5 is a concave surface, and its second side surface S6 is a concave surface.

[0304] The fourth lens L4 has positive refractive power, and its first side surface S7 is concave, and its second side surface S8 is convex.

[0305] The fifth lens L5 has positive refractive power, and its first side surface S9 is convex, and its second side surface S10 is concave.

[0306] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0307] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0308] Table 31 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 16. Table 32 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 16, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0309] Table 31

[0310] Table 32

[0311] Fig.35 Schematic diagrams of distortion curves of the optical lenses of Examples 15 and 16 are shown. Embodiment 17

[0312] The following reference Fig.17 An optical lens according to Embodiment 17 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.17 A schematic structural diagram of an optical lens according to Example 17 of the present application is shown.

[0313] like Fig.17 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0314] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0315] 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 convex surface.

[0316] The third lens L3 has negative refractive power, and its first side surface S5 is concave, and its second side surface S6 is convex.

[0317] 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.

[0318] The fifth lens L5 has positive refractive power, and its first side surface S9 is concave, and its second side surface S10 is convex.

[0319] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0320] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0321] Table 33 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 17. Table 34 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 17, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0322] Table 33

[0323] Table 34 Embodiment 18

[0324] The following reference Fig.18 The optical lens according to Embodiment 18 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Embodiment 1 will be omitted. Fig.18 A schematic structural diagram of an optical lens according to Example 18 of the present application is shown.

[0325] like Fig.18 As shown, the optical lens includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4 and a fifth lens L5 in sequence from the first side to the second side along the optical axis.

[0326] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0327] 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 convex surface.

[0328] The third lens L3 has negative refractive power, and its first side surface S5 is concave, and its second side surface S6 is convex.

[0329] 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.

[0330] The fifth lens L5 has positive refractive power, and its first side surface S9 is concave, and its second side surface S10 is convex.

[0331] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0332] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0333] Table 35 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 18. Table 36 shows the cone coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 18, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0334] Table 35

[0335] Table 36

[0336] Fig.36 Schematic diagrams of distortion curves of the optical lenses of Examples 17 and 18 are shown. Embodiment 19

[0337] The following reference Fig.19 The optical lens according to Embodiment 19 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.19 A schematic structural diagram of an optical lens according to Example 19 of the present application is shown.

[0338] like Fig.19 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.

[0339] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0340] 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 convex surface.

[0341] The third lens L3 has negative refractive power, and its first side surface S5 is concave, and its second side surface S6 is convex.

[0342] 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.

[0343] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0344] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0345] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0346] Table 37 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 19. Table 38 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 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.

[0347] Table 37

[0348] Table 38 Embodiment 20

[0349] The following reference Fig. 20 An optical lens according to Embodiment 20 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 20 of the present application is shown.

[0350] 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.

[0351] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0352] 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 convex surface.

[0353] The third lens L3 has negative refractive power, and its first side surface S5 is concave, and its second side surface S6 is convex.

[0354] 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.

[0355] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0356] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0357] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0358] Table 39 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 20. Table 40 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 20, wherein each aspheric surface shape can be defined by the formula (1) given in the above Example 1.

[0359] Table 39

[0360] Table 40

[0361] Fig.37 Schematic diagrams of distortion curves of the optical lenses of Examples 19 and 20 are shown. Embodiment 21

[0362] The following reference Fig.21 An optical lens according to Embodiment 21 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.21 A schematic structural diagram of an optical lens according to Example 21 of the present application is shown.

[0363] like Fig.21As 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.

[0364] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0365] 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.

[0366] The third lens L3 has negative refractive power, and its first side surface S5 is convex, and its second side surface S6 is concave.

[0367] 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.

[0368] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0369] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0370] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0371] Table 41 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 21. Table 42 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 21, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0372] Table 41

[0373] Table 42 Embodiment 22

[0374] The following reference Fig. 22 An optical lens according to Embodiment 22 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 22 of the present application is shown.

[0375] like Fig. 22As 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.

[0376] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0377] 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.

[0378] The third lens L3 has negative refractive power, and its first side surface S5 is convex, and its second side surface S6 is concave.

[0379] 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.

[0380] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0381] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0382] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0383] Table 43 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 22. Table 44 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 22, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0384] Table 43

[0385] Table 44

[0386] Fig.38 A schematic diagram of the distortion curves of the optical lenses of Examples 21 and 22 is shown. Embodiment 23

[0387] The following reference Fig.23 An optical lens according to Embodiment 23 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.23A schematic structural diagram of an optical lens according to Example 23 of the present application is shown.

[0388] like Fig.23 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.

[0389] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0390] 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.

[0391] The third lens L3 has negative refractive power, and its first side surface S5 is a concave surface, and its second side surface S6 is a concave surface.

[0392] 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.

[0393] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0394] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0395] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0396] Table 45 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 23. Table 46 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 23, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0397] Table 45

[0398] Table 46 Embodiment 24

[0399] The following reference Fig.24 An optical lens according to Embodiment 24 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.24A schematic structural diagram of an optical lens according to Example 24 of the present application is shown.

[0400] like Fig.24 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.

[0401] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0402] 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.

[0403] The third lens L3 has negative refractive power, and its first side surface S5 is a concave surface, and its second side surface S6 is a concave surface.

[0404] 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.

[0405] The fifth lens L5 has positive refractive power, and its first side surface S9 is a convex surface, and its second side surface S10 is a convex surface.

[0406] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0407] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0408] Table 47 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 24. Table 48 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 24, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above Example 1.

[0409] Table 47

[0410] Table 48

[0411] In Examples 23 and 24, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.84. Based on the above values, the optical lenses provided by Examples 23 and 24 have higher resolving power.

[0412] Fig.39 Schematic diagrams of distortion curves of the optical lenses of Examples 23 and 24 are shown. Embodiment 25

[0413] The following reference Fig.25 An optical lens according to Embodiment 25 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.25 A schematic structural diagram of an optical lens according to Example 25 of the present application is shown.

[0414] like Fig.25 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.

[0415] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0416] 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 convex surface.

[0417] The third lens L3 has negative refractive power, a first side surface S5 of which is a concave surface, and a second side surface S6 of which is a convex surface.

[0418] The fourth lens L4 has positive refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0419] The fifth lens L5 has negative refractive power, and its first side surface S9 is concave, and its second side surface S10 is concave.

[0420] The first side surface S1 of the first lens L1 has an inverse curve.

[0421] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0422] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0423] Table 49 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 25. Table 50 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1, S2, S7 and S8 of the aspheric lenses L1 and L4 that can be used in Example 25, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0424] Table 49

[0425] Table 50 Embodiment 26

[0426] The following reference Fig.26 An optical lens according to Embodiment 26 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 Embodiment 2 of the present application is shown.

[0427] 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.

[0428] The first lens L1 has negative refractive power, and its first side surface S1 is a convex surface, and its second side surface S2 is a concave surface.

[0429] 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 convex surface.

[0430] The third lens L3 has negative refractive power, a first side surface S5 of which is a concave surface, and a second side surface S6 of which is a convex surface.

[0431] The fourth lens L4 has positive refractive power, and its first side surface S7 is convex, and its second side surface S8 is concave.

[0432] The fifth lens L5 has negative refractive power, and its first side surface S9 is concave, and its second side surface S10 is concave.

[0433] The first side surface S1 of the first lens L1 has an inverse curve.

[0434] The optical lens may further include a stop STO, and the stop STO may be disposed between the third lens L3 and the fourth lens L4.

[0435] Optionally, the optical lens may further include a filter having a first side surface S11 and a second side surface S12 , and a protective glass having a first side surface S13 and a second side surface S14 .

[0436] Table 51 shows the radius of curvature R, thickness / distance, refractive index Nd and Abbe number Vd of each lens of the optical lens of Example 26. Table 52 shows the conic coefficient k and high-order coefficients A4, A6, A8, A10, A12, A14, A16, A18 and A20 of the aspheric mirror surfaces S1, S2, S7 and S8 of the aspheric lenses L1 and L4 that can be used in Example 26, wherein the surface shape of each aspheric surface can be defined by the formula (1) given in the above-mentioned Example 1.

[0437] Table 51

[0438] Table 52

[0439] In Examples 25 and 26, in terms of MTF, the MTF value of the central field light of the optical lens at a spatial frequency of 83lp / mm (83 line pairs / mm) exceeds 0.82. Based on the above values, the optical lenses provided by Examples 25 and 26 have higher resolution capabilities.

[0440] Fig.40 A schematic diagram of the distortion curves of the optical lenses of Examples 25 and 26 is shown.

[0441] In summary, Examples 1 to 26 respectively satisfy the relationships shown in Table 53-1, Table 53-2, and Table 53-3. In Table 53-1, Table 53-2, and Table 53-3, the units of F, ENPD, TTL, BFL, H, F1~F5, F23, D, Dmax, SAG1, dj, d12, d34, d45, R11, R12, R21, and R32 are millimeters (mm), the units of FOV are degrees (°), and the units of θ and θ2 are radians (rad).

[0442] Table 53-1

[0443]

[0444] Table 53-2

[0445]

[0446] Table 53-3

[0447]

[0448] 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.

[0449] 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 convex and the second side surface is concave; a second lens having optical power; a third lens having optical power; a fourth lens having positive refractive power; and a fifth lens having optical power; The number of lenses with optical power is five, the second lens and the third lens are cemented together, one of the second lens and the third lens has positive optical power, and the other has negative optical power, and the optical lens satisfies: 0.5≤|F23 / F|≤35, 0.8≤R11 / R12≤4, 80°≤(FOV×F) / H≤100°, |F5 / F|≥1, 0.25≤(H / 2) / (F*tan(θ / 2))≤0.6, Among them, F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F5 is the effective focal length of the fifth lens, 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, H is the image height corresponding to the maximum field of view angle of the optical lens, FOV is 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.

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

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

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

5. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.3≤(1 / F23) / (1 / F)≤0.8, 0.2≤(1 / F4+1 / F5) / (1 / F)≤0.8, F5 / F≥1.8, Among them, F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

6. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: -0.35≤(1 / F23) / (1 / F)≤0.4, 0.8≤(1 / F4+1 / F5) / (1 / F)≤1.6, Among them, F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

7. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: 0.25≤R11 / F≤1.5, Wherein, R11 is the curvature radius of the first side surface of the first lens, and F is the total effective focal length of the optical lens.

8. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: R11 / SAG1≤7, Wherein, R11 is the radius of curvature of the first side surface of the first lens, and SAG1 is the sag height of the first side surface of the first lens.

9. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: -8≤F1 / F≤-1.1, Wherein, F is the total effective focal length of the optical lens, and F1 is the effective focal length of the first lens.

10. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: -10≤F2 / F3≤-0.1, Wherein, F2 is the effective focal length of the second lens, and F3 is the effective focal length of the third lens.

11. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: 0.05≤d12 / TTL≤0.4, Wherein, d12 is the spacing distance between the first lens and the second lens along the optical axis, and TTL is the total optical length of the optical lens.

12. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: 0.75≤F4 / F≤7, Wherein, F is the total effective focal length of the optical lens, and F4 is the effective focal length of the fourth lens.

13. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: 2≤TTL / F≤6.5, Wherein, F is the total effective focal length of the optical lens, and TTL is the total optical length of the optical lens.

14. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: 0.75≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.65, Among them, F is the total effective focal length of the optical lens, F23 is the combined focal length of the second lens and the third lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

15. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: d34 / TTL≤0.2, Wherein, TTL is the total optical length of the optical lens, and d34 is the spacing distance between the third lens and the fourth lens along the optical axis.

16. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: d45 / TTL≤0.2, Wherein, TTL is the total optical length of the optical lens, and d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis.

17. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: 0.1mm 2 ≤F×(1 / F4+1 / F5)≤2mm 2 , Among them, F is the total effective focal length of the optical lens, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

18. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets the following requirements: |F1 / F23|≤3, Wherein, F1 is the effective focal length of the first lens, and F23 is the combined focal length of the second lens and the third lens.

19. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets at least one of the following conditions: -0.3≤SAG1 / F1≤-0.05,|arctan(1 / K(S1)) / θ2|≤0.95,0.1≤H(θ / 10) / (H / 2)≤0.5,0.8≤|R21 / F|≤30,0<|R21 / R32|≤25,0.5≤d12 / (d34+d45)≤30,0.12≤BFL / TTL≤0.4,1≤TTL / Dmax≤3.5,2≤TTL / H / FOV×180°≤10,0.3rad -1 ≤D / H / θ≤1rad -1 ,1.4≤F / ENPD≤1.7,0.15≤dj / TTL≤0.5,0.4≤F / H≤1.5, Wherein, SAG1 is the sag height of the first side surface of the first lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, arctan(1 / K(S1)) is the opening angle of the first side surface of the first lens at the maximum field of view angle of the optical lens, θ2 is the opening angle of the first side surface of the first lens at a distance of one quarter of the aperture from the center of the first lens, F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, R21 is the curvature radius of the first side surface of the second lens, R32 is the curvature radius of the second side surface of the third lens, H is the image height corresponding to the maximum field of view angle of the optical lens, FOV is the maximum field of view angle of the optical lens, TTL is the total optical 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, D is the maximum light-clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, Dmax is the maximum value of the maximum light-clearance apertures of the sides of all lenses corresponding to the maximum field of view of the optical lens, d12 is the spacing distance between the first lens and the second lens along the optical axis, d34 is the spacing distance between the third lens and the fourth lens along the optical axis, d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis, and dj is the thickness of the bonded component formed by bonding the second lens and the third lens.

20. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets at least one of the following conditions: 0.4≤R11 / F≤1.15, -0.21≤SAG1 / F1≤-0.085, 0.5≤R11 / SAG1≤7.8, 0.003≤|arctan(1 / K(S1)) / θ2|≤1.4, -5≤ F1 / F≤-0.7, 1.25≤R11 / R12≤2.75, 88°≤(FOV×F) / H≤90°, 0.1≤H(θ / 10) / (H / 2)≤0.37, 0.38≤(H / 2) / (F*tan(θ / 2))≤0.4, 1≤|R21 / F|≤28, 0.1≤|R21 / R32|≤20, 1≤|F23 / F|≤30, -8≤F2 / F3≤-0.15, 0.08≤d12 / TTL≤0.22, 0.001≤d34 / TTL≤0.2, 0.001≤d45 / TTL≤0.038, 0.75≤d12 / (d34+d45)≤28, 1≤F4 / F≤6, 1.4≤|F5 / F|≤5000, 0.15mm 2 ≤F×(1 / F4+1 / F5)≤1.8mm 2 , 0.73≤F / H≤0.75, 0.17≤BFL / TTL≤0.21, 2≤TTL / Dmax≤2.9, 3.75≤TTL / F≤5.8, 4≤TTL / H / FOV×180°≤6.5, 0.5rad -1 ≤D / H / θ≤0.75rad -1 , 1.55≤F / ENPD≤1.65, 0.18≤dj / TTL≤0.45, 0.8≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.5, 0.05≤|F1 / F23|≤2.5, 0.4≤(1 / F23) / (1 / F)≤0.7, 0.3≤(1 / F4+1 / F5) / (1 / F)≤0.7 and F5 / F≥2, and -0.28≤(1 / F23) / (1 / F)≤0.35 and 0.95≤(1 / F4+1 / F5) / (1 / F)≤1.35, Wherein, SAG1 is the sag height of the first side surface of the first lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, arctan(1 / K(S1)) is the opening angle of the first side surface of the first lens at the maximum field of view angle of the optical lens, θ2 is the opening angle of the first side surface of the first lens at a distance of one quarter of the aperture from the center of the first lens, F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F23 is the combined focal length of the second lens and the third 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, and R21 is the curvature radius of the first side surface of the second lens , R32 is the radius of curvature of the second side surface of the third lens, H is the image height corresponding to the maximum field of view angle of the optical lens, FOV is the maximum field of view angle of the optical lens, TTL is the total optical 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, D is the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field of view angle of the optical lens, Dmax is the maximum value of the maximum clear aperture of the sides of all lenses with the maximum clear aperture corresponding to the maximum field of view angle of the optical lens, d12 is the spacing distance between the first lens and the second lens along the optical axis, d34 is the spacing distance between the third lens and the fourth lens along the optical axis, d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis, and dj is the thickness of the bonded component formed by bonding the second lens and the third lens.

21. The optical lens according to any one of claims 1 to 4, characterized in that: The optical lens meets at least one of the following conditions: 0.5879≤R11 / F≤1.0381, -0.187≤SAG1 / F1≤-0.1106, 1.3122≤R11 / SAG1≤5.7292, 0.0065≤|ar ctan(1 / K(S1)) / θ2|≤0.8541,-4.0571≤F1 / F≤-1.4378,1.5702≤R11 / R12≤2.4532,88.4897° ≤(FOV×F) / H≤89.5372°, 0.1545≤H(θ / 10) / (H / 2)≤0.3168, 0.3869≤(H / 2) / (F*tan(θ / 2))≤0. 3915, 1.3419≤|R21 / F|≤18.6406, 0.2214≤|R21 / R32|≤13.0149, 1.4913≤|F23 / F|≤24.2764, - 7.096≤F2 / F3≤-0.2062, 0.1101≤d12 / TTL≤0.1974, 0.0043≤d34 / TTL≤0.134, 0.0043≤d45 / TT L≤0.0275,1.1265≤d12 / (d34+d45)≤18.5575,1.2597≤F4 / F≤4.7724,1.7138≤|F5 / F|≤3242.9 613, 0.3144≤F×(1 / F4+1 / F5)≤1.3056, 0.7374≤F / H≤0.7461, 0.1772≤BFL / TTL≤0.2035, 2.14 29≤TTL / Dmax≤2.7221, 4.1808≤TTL / F≤5.4831, 4.6692≤TTL / H / FOV×180°≤6.1178, 0.5532rad -1 ≤D / H / θ≤0.6979rad -1 , 1.575≤F / ENPD≤1.6, 0.2175≤dj / TTL≤0.3842, 0.9205≤(1 / F23+1 / F4+1 / F5) / (1 / F)≤1.3469, 0.0952≤|F1 / F23|≤1.5898, and 0.4875≤(1 / F23) / (1 / F)≤0.6706, 0.3144≤(1 / F4+1 / F5) / (1 / F)≤0.6146 and 2.4985≤F5 / F≤3242.9613, and -0.1741≤(1 / F23) / (1 / F)≤0.2433 and 1.0809≤(1 / F4+1 / F5) / (1 / F)≤1.3056, Wherein, SAG1 is the sag height of the first side surface of the first lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, arctan(1 / K(S1)) is the opening angle of the first side surface of the first lens at the maximum field of view angle of the optical lens, θ2 is the opening angle of the first side surface of the first lens at a distance of one quarter of the aperture from the center of the first lens, F is the total effective focal length of the optical lens, F1 is the effective focal length of the first lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, F4 is the effective focal length of the fourth lens, F5 is the effective focal length of the fifth lens, F23 is the combined focal length of the second lens and the third lens, 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, R21 is the radius of curvature of the first side surface of the second lens, R32 is the radius of curvature of the second side surface of the third lens, H is the image height corresponding to the maximum field of view angle of the optical lens, FOV is the maximum field of view angle of the optical lens, TTL is the total optical 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, Dmax is the maximum value of the maximum clear apertures of the sides of all lenses corresponding to the maximum field of view angle of the optical lens, d12 is the spacing distance between the first lens and the second lens along the optical axis, d34 is the spacing distance between the third lens and the fourth lens along the optical axis, d45 is the spacing distance between the fourth lens and the fifth lens along the optical axis, and dj is the thickness of the bonded component formed by bonding the second lens and the third lens.

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

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