Optical Lens and Electronic Device

Abstract

The present application discloses an optical lens and an electronic device. The optical lens sequentially includes, along the optical axis, from the first side to the second side: a first lens with a negative optical power, the first side surface being convex and the second side surface being concave; a second lens with an optical power; a third lens with an optical power; a fourth lens with a positive optical power; a fifth lens with an optical power; the second lens and the third lens are cemented, one of the second lens and the third lens has a positive optical power and the other has a 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, where F, F23, and F5 are 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, respectively, and R11 and R12 are the curvature radii of the first and second side surfaces of the first lens, and FOV and H are the maximum field of view angle of the optical lens and its corresponding image height, respectively.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and more particularly, 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 applied to various scenarios, especially optical lenses used in vehicles and serving as key components in autonomous driving assistance systems. For example:

[0003] 1) Due to considerations such as the aesthetic appearance of the vehicle and convenient assembly, higher requirements are put forward for the miniaturization ability of vehicle-mounted lenses; 2) Due to the increasingly high requirements for the imaging quality of visual images, the market urgently needs a stable and reliable vehicle-mounted front-view lens that can meet specific usage scenarios and achieve high resolution and miniaturization; 3) Due to the increasing demand for information volume, the front-view lens needs to image a large field of view, and at the same time, in order to meet the application requirements of specific usage scenarios, the lens needs to balance long focal length (telephoto); 4) Due to the need for safe driving, such as to adapt to driving environments with low light such as at night or on rainy and cloudy days, the lens is required to have strong light transmission ability.

[0004] However, the optical lenses in the related art, especially those applied to vehicles, cannot achieve the above technical effects and meet the market requirements. Summary of the Invention

[0005] One aspect of the present application provides an optical lens. The optical lens sequentially includes, along the optical axis from the first side to the second side: a first lens with negative optical power, whose first side is convex and the second side 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, where 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 curvature radius of the first side of the first lens, R12 is the curvature radius of the second side 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.

[0006] An optical lens according to an embodiment of the present application includes five lenses with optical powers, namely a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged in sequence along the optical axis from the first side to the second side. Among them, the first lens has a negative optical power, its first side is convex, and its second side is concave. The fourth lens has a positive optical power. The second lens and the third lens are cemented together, and one of the second lens and the third lens has a positive optical power and the other has a 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 at least one of the effects of large field of view, miniaturization, low sensitivity, high light transmission, long focal length, and high resolution can be achieved.

[0007] On the other hand, the present application provides an optical lens. The optical lens sequentially includes, along the optical axis from the first side to the second side: a first lens with a negative optical power, its first side is convex, and its second side is concave; a second lens with an optical power; a third lens with an optical power; a fourth lens with a positive optical power; and a fifth lens with an optical power. Among them, the second lens and the third lens are cemented together, and one of the second lens and the third lens has a positive optical power and the other has a negative optical power. And the optical lens satisfies: 0.25 ≤ R11 / F ≤ 1.5; R11 / SAG1 ≤ 7; 0.8 ≤ R11 / R12 ≤ 4; 80° ≤ (FOV × F) / H ≤ 100°; 0.25 ≤ (H / 2) / (F * tan(θ / 2)) ≤ 0.6, where R11 is the radius of curvature of the first side of the first lens, SAG1 is the sag of the first side 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 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.

[0008] On another aspect, the present application provides an optical lens. The optical lens sequentially includes, along the optical axis from the first side to the second side: a first lens with a negative optical power, its first side is convex, and its second side is concave; a second lens with an optical power; a third lens with an optical power; a fourth lens with a positive optical power; and a fifth lens with an optical power. Among them, the second lens and the third lens are cemented together, and one of the second lens and the third lens has a positive optical power and the other has a negative optical power. And the optical lens satisfies: 0.75 ≤ (1 / F23 + 1 / F4 + 1 / F5) / (1 / F) ≤ 1.65, where 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.

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

[0010] In one embodiment, the optical lens satisfies that: the fourth lens has a positive optical power, its first side is convex, and its second side is concave or convex, or its first side is concave, and its second side is convex.

[0011] In one embodiment, the optical lens satisfies that: the fifth lens has a positive optical power, its first side is convex, and its second side is concave or convex, or its first side is concave, and its second side is convex; or the fifth lens has a negative optical power, its first side is convex, and its second side is concave, or its first side is concave, and its second side is concave or convex.

[0012] In one embodiment, the optical lens satisfies that: 0.3 ≤ (1 / F23) / (1 / F) ≤ 0.8, 0.2 ≤ (1 / F4 + 1 / F5) / (1 / F) ≤ 0.8, F5 / F ≥ 1.8, where 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 that: -0.35 ≤ (1 / F23) / (1 / F) ≤ 0.4, 0.8 ≤ (1 / F4 + 1 / F5) / (1 / F) ≤ 1.6, where 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.

[0014] In one embodiment, the optical lens satisfies that: 0.25 ≤ R11 / F ≤ 1.5, where R11 is the radius of curvature of the first side of the first lens, and F is the total effective focal length of the optical lens.

[0015] In one embodiment, the optical lens satisfies: R11 / SAG1 ≤ 7, where R11 is the radius of curvature of the first side of the first lens and SAG1 is the sag of the first side of the first lens.

[0016] In one embodiment, the optical lens satisfies: -8 ≤ F1 / F ≤ -1.1, where F is the total effective focal length of the optical lens and F1 is the effective focal length of the first lens.

[0017] In one embodiment, the optical lens satisfies: 0.25 ≤ (H / 2) / (F*tan(θ / 2)) ≤ 0.6, where 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.

[0018] In one embodiment, the optical lens satisfies: -10 ≤ F2 / F3 ≤ -0.1, where F2 is the effective focal length of the second lens and F3 is the effective focal length of the third lens.

[0019] In one embodiment, the optical lens satisfies: 0.05 ≤ d12 / TTL ≤ 0.4, where d12 is the distance between the first lens and the second lens along the optical axis and TTL is the total optical length of the optical lens.

[0020] In one embodiment, the optical lens satisfies: 0.75 ≤ F4 / F ≤ 7, where F is the total effective focal length of the optical lens and F4 is the effective focal length of the fourth lens.

[0021] In one embodiment, the optical lens satisfies: 2 ≤ TTL / F ≤ 6.5, where F is the total effective focal length of the optical lens and TTL is the total optical length of the optical lens.

[0022] In one embodiment, the optical lens satisfies: 0.75 ≤ (1 / F23 + 1 / F4 + 1 / F5) / (1 / F) ≤ 1.65, where 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.

[0023] In one embodiment, the optical lens satisfies: d34 / TTL ≤ 0.2, where TTL is the total optical length of the optical lens and d34 is the distance between the third lens and the fourth lens along the optical axis.

[0024] In one embodiment, the optical lens satisfies: d45 / TTL ≤ 0.2, where TTL is the total optical length of the optical lens and d45 is the distance between the fourth lens and the fifth lens along the optical axis.

[0025] In one embodiment, the optical lens satisfies: 0.1 mm 2 ≤F×(1 / F4 + 1 / F5)≤2 mm 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.

[0026] In one embodiment, the optical lens satisfies: |F1 / F23|≤3, where 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.

[0027] 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, 0.3 rad -1 ≤D / H / θ≤1 rad -1 , 1.4≤F / ENPD≤1.7, 0.15≤dj / TTL≤0.5, 0.4≤F / H≤1.5, where SAG1 is the sagittal height of the first 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 angle subtended by the first surface of the first lens at the maximum field of view angle of the optical lens, θ2 is the angle subtended by the first surface of the first lens at a point 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 radius of curvature of the first surface of the second lens, R32 is the radius of curvature of the second 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 back focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, D is the maximum clear aperture of the first surface of the first lens corresponding to the maximum field of view angle of the optical lens, Dmax is the maximum value among the maximum clear apertures of the surfaces of all lenses corresponding to the maximum field of view angle of the optical lens, d12 is the axial distance between the first lens and the second lens, d34 is the axial distance between the third lens and the fourth lens, d45 is the axial distance between the fourth lens and the fifth lens, and dj is the thickness of the cemented lens formed by cementing the second lens and the third lens.

[0028] 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, while simultaneously satisfying 0.4 ≤ (1 / F23) / (1 / F) ≤ 0.7, 0.3 ≤ (1 / F4 + 1 / F5) / (1 / F) ≤ 0.7, and F5 / F ≥ 2, and simultaneously satisfying -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 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 angle subtended by the first surface of the first lens at the maximum field of view angle of the optical lens, θ2 is the angle subtended by the first 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 and third lenses, R11 is the radius of curvature of the first surface of the first lens, R12 is the radius of curvature of the second surface of the first lens, R21 is the radius of curvature of the first surface of the second lens, R32 is the radius of curvature of the second 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 optical total length of the optical lens, BFL is the optical back focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, D is the maximum clear aperture of the first surface of the first lens corresponding to the maximum field of view angle of the optical lens, Dmax is the maximum value among the maximum clear apertures of all lens surfaces corresponding to the maximum field of view angle of the optical lens, d12 is the axial spacing between the first and second lenses, d34 is the axial spacing between the third and fourth lenses, d45 is the axial spacing between the fourth and fifth lenses, and dj is the thickness of the cemented component formed by cementing the second and third lenses.

[0029] 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 / 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 / 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, 0.5532 rad -1 ≤ D / H / θ ≤ 0.6979 rad -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 simultaneously satisfying 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, where SAG1 is the sagitta of the first side 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 angle subtended by the first side of the first lens at the maximum field of view angle of the optical lens, θ2 is the angle subtended by the first side of the first lens at a distance of one-quarter 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 of the first lens, R12 is the radius of curvature of the second side of the first lens, R21 is the radius of curvature of the first side of the second lens, R32 is the radius of curvature of the second side 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 optical total length of the optical lens, BFL is the optical back focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, Dmax is the maximum value among the maximum clear aperture diameters of all the sides of the lenses corresponding to the maximum field of view angle of the optical lens, d12 is the distance between the first lens and the second lens along the optical axis, d34 is the distance between the third lens and the fourth lens along the optical axis, d45 is the distance between the fourth lens and the fifth lens along the optical axis, and dj is the thickness of the cemented lens formed by cementing the second lens and the third lens.

[0030] Another aspect of the present application provides an electronic device, including the optical lens according to any one of the above embodiments and an imaging element for converting the optical image formed by the optical lens into an electrical signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] With reference to the accompanying drawings, through the following detailed description of the embodiments, other features, objects, and advantages of the present application will become more apparent. In the drawings:

[0032] Figures 1 to 26 Structural schematic diagrams of the optical lenses according to Embodiments 1 to 26 of the present application are respectively shown;

[0033] Figure 27 Shows a schematic diagram of the MTF curve of the central field light of the optical lens according to Embodiment 1 of the present application; and

[0034] Figure 28 Shows a schematic diagram of the distortion curves of Embodiments 1 and 2, Figure 29 Shows a schematic diagram of the distortion curves of Embodiments 3 and 4, Figure 30 Shows a schematic diagram of the distortion curves of Embodiments 5 and 6, Figure 31 Shows a schematic diagram of the distortion curves of Embodiments 7 and 8, Figure 32 Shows a schematic diagram of the distortion curves of Embodiments 9 and 10, Figure 33 Shows a schematic diagram of the distortion curves of Embodiments 11 and 12, Figure 34 Shows a schematic diagram of the distortion curves of Embodiments 13 and 14, Figure 35 Shows a schematic diagram of the distortion curves of Embodiments 15 and 16, Figure 36 Shows a schematic diagram of the distortion curves of Embodiments 17 and 18, Figure 37 Shows a schematic diagram of the distortion curves of Embodiments 19 and 20, Figure 38 Shows a schematic diagram of the distortion curves of Embodiments 21 and 22, Figure 39 Shows a schematic diagram of the distortion curves of Embodiments 23 and 24, Figure 40 Shows a schematic diagram of the distortion curves of Embodiments 25 and 26. Detailed implementation manners

[0035] 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 the exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] It should be noted that in this specification, the expressions such as first, second, and third are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teachings of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0037] It should be noted that the optical lenses provided in Examples 1 to 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).

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

[0039] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the first side is called the first side surface of the lens, the surface of each lens closest to the second side is called the second side surface of the lens, and the surface of the optical lens closest to the second side is called the second side surface of the optical lens.

[0040] It should be understood that the optical lens provided in the present application can be used for both video recording and projection. When the optical lens provided in the present application is used for a video recording lens, the "first side" referred to in this article may refer to the object side, and the "second side" may refer to the image side; when the optical lens provided in the present application is used for a projection lens or a radar transmitting lens, the "first side" referred to in this article may refer to the imaging side, and the "second side" may refer to the image source side.

[0041] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

[0042] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0043] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

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

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

[0046] In an exemplary embodiment, the optical lens provided in the present application can be used as, for example, a vehicle-mounted lens. In this case, the first side of the optical lens can be the object side, and the second side can be the image side. The light from the object side can form an image on the image side. The second side surface of the optical lens is the imaging surface of the optical lens.

[0047] In an exemplary embodiment, the optical lens provided in the present application can be used as, for example, a projection lens or a laser radar emission end lens. In this case, the second side of the optical lens can be the image source side, and the first side can be the imaging side. The light from the image source side can form an image on the imaging side. The second side surface of the optical lens is the image source surface of the optical lens.

[0048] 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 can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor element (CMOS).

[0049] In an exemplary embodiment, the first lens may have a negative optical power. Its first side may be convex, and its second side may be concave. Making the first lens have a negative optical power can diverge light rays to collect as many light rays at large angles as possible and make the light rays diverge into the rear optical system, increasing the light transmission of the optical lens. Making its first side convex is conducive to collecting more light rays and making the incident angle of the light rays smaller, which is conducive to allowing more light rays to enter the optical system to achieve a large field of view angle. Making its second side concave can diverge the large-angle light rays passing through the first side 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 lens with a relatively gentle edge and a small opening angle, which can meet the requirements for special distortion (large distortion) of the optical lens.

[0050] In an exemplary embodiment, the second lens and the third lens may be glued together to form a glued component, which can achieve the following effects:

[0051] It can reduce the physical distance between the second lens and the third lens, which is conducive to miniaturizing the optical lens. At the same time, it can reduce the lens sensitivity and is conducive to correcting chromatic aberration.

[0052] Gluing the second lens and the third lens can share the distortion amount of the first lens. Gluing the second lens and the third lens and then cooperating with the first lens is conducive to adjusting the light ray trends in the central and peripheral fields of view, sharing the distortion of the first lens, reducing the sensitivity of the optical lens, balancing the astigmatism of the optical lens, improving the image quality, and enhancing the resolution.

[0053] If the second lens and the third lens can form a glued component while the fourth lens and the fifth lens are two single lenses, it is conducive to achieving a small CRA and a long back focal length.

[0054] It can improve the resolution quality of the optical lens and reduce the height of the light rays in the lens, achieving 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, which can make the light rays transition smoothly to the rear lens.

[0055] 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, it is conducive to the smooth transition of light rays from the first lens to the second lens and reducing the light energy loss while achieving the miniaturization of the optical lens.

[0056] In an exemplary embodiment, the second lens may have a positive optical power. Making the second lens have a positive optical power can converge light. In the exemplary embodiment, the second lens with a positive optical power may be paired with the first lens with a negative optical power. The second lens can converge the light emitted from the first lens to reduce the overall optical length of the optical lens, and the converging effect on light can further reduce the aperture. In the exemplary embodiment, the first side surface of the second lens may be convex, and the second side surface may be concave. The convex first side surface of the second lens, when combined with the concave second side surface of the first lens, can converge the light emitted from the first lens, smooth the light trend, thereby reducing the sensitivity of the optical lens, allowing the light to enter the rear optical system smoothly, and enabling as many large-angle light rays as possible to enter the rear optical system, which is beneficial to improving the illuminance of the edge field of view. At the same time, it is also beneficial to control the aperture of the rear lens to achieve miniaturization of the optical lens; the concave second side surface of the second lens can reduce the deflection of light on the second side surface to reduce the generation of aberration and improve the imaging quality of the optical lens. In the exemplary embodiment, the first side surface of the second lens may be concave, and the second side surface may be convex. The concave first side surface of the second lens can diverge light, increase the system illuminance, and appropriately diverge the light emitted from the first lens, thereby balancing the aberration of the light rays converging on the imaging surface in each field of view and further improving the resolution; the convex second side surface of the second lens converges light, and the light deflects towards the optical axis, which is beneficial to reducing the aperture of the rear lens and achieving miniaturization of the optical lens. In the exemplary embodiment, the first side surface of the second lens may be convex. The convex first side surface of the second lens is beneficial to better converging the light emitted from the first lens, collecting large-angle light rays, reducing light energy loss, improving the illuminance of the edge field of view, and deflecting the light towards the optical axis, effectively reducing the height of the light entering the third lens, which is beneficial to reducing the aperture of the rear lens and achieving miniaturization of the optical lens.

[0057] In an exemplary embodiment, the second lens may have a negative optical power. Making the second lens have a negative optical power can further gently diverge the light rays collected by the first lens, which is beneficial to expanding the light ray width to reach 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. Making both the first side surface and the first side surface of the second lens be concave surfaces can diverge the light rays, which is beneficial to balancing the aberrations of the light rays in each field of view. In an exemplary embodiment, when both the first side surface and the first side surface of the second lens are concave surfaces, the second side surface of the third lens may be a convex surface. With this combination, it is beneficial for the light rays to transition smoothly, with less deflection of the light rays, thereby reducing the sensitivity of the optical lens and reducing the light energy loss, which is beneficial to improving the illuminance 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 convex first side surface of the second lens, in cooperation with the concave second side surface of the first lens, can converge the light rays emerging from the first lens, with a smaller light ray incident angle, 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 trend of the large-angle light rays at the edge of the lens, so that the light rays emerging from the second side surface of the second lens can provide a larger light receiving surface for the subsequent optical system.

[0058] In an exemplary embodiment, the third lens may have a positive optical power, its first side surface may be a convex surface, and the second side surface may be a convex surface. The third lens having a positive optical power can converge the light rays, enabling the light rays to transition smoothly to the subsequent lens and improving the image quality; it can achieve a larger light input amount and increase the brightness of the image surface; moreover, the third lens having a positive optical power, in cooperation with the second lens having a negative optical power, can further reduce the aberration and improve the resolution ability, and at the same time can also enable the light rays to converge effectively and smoothly finally, making the light rays reach the imaging surface smoothly. The first side surface and the second side surface of the third lens may both be convex surfaces, which enables the light rays emerging from the second lens to converge further, is beneficial to collecting large-angle light rays, reducing the light energy loss, and reducing the height of the light rays emerging from the third lens, thereby realizing the miniaturization of the optical lens.

[0059] In an exemplary embodiment, the third lens may have a negative optical power. The third lens having a negative optical power is conducive to receiving the light converged by the second lens and further diverging it, increasing the light input amount in the peripheral field of view, enhancing the illuminance, and achieving large image plane imaging. In an exemplary embodiment, the first side surface of the third lens may be concave, and the second side surface may be concave. Both the first side surface and the second side surface of the third lens being concave can cause the light exiting the third lens to further diverge, which is conducive to achieving a larger light input amount, increasing the image plane brightness, and can achieve a lower height of the exiting 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 concave, the second side surface of the second lens may be convex. With this combination, it is conducive to the light entering the rear optical system smoothly, reducing the system sensitivity, and can diverge the light converged by the second lens, enabling the light to reach a higher imaging position, which is beneficial for a small CRA. In an exemplary embodiment, the second side surface of the third lens may be concave. The second side surface of the third lens being convex can cause the light exiting the third lens to converge appropriately, enabling the large-angle light to better enter the rear optical system, which is beneficial for increasing the illuminance of the peripheral field of view and can shorten the distance to the imaging plane, which is beneficial for reducing the overall optical length of the optical lens and the aperture of the rear port of the lens. In an exemplary embodiment, the first side surface of the third lens may be convex, and the second side surface may be concave. In an exemplary embodiment, when the first side surface of the third lens is convex, the second side surface of the second lens may be concave. With this combination, it is conducive to the large-angle light entering the rear optical system smoothly, increasing the illuminance of the peripheral field of view. The second side surface of the third lens being concave can cause the light exiting the third lens to further diverge, which is conducive to achieving a larger light input amount and further increasing the image plane brightness.

[0060] In an exemplary embodiment, the fourth lens may have a positive optical power. Having a positive optical power, the fourth lens can further converge the light rays passing through the third lens to balance the aberration generated by the front lens, achieve high resolution, and can reduce the height of peripheral light rays, which is beneficial to reducing the aperture of the rear lens and thus beneficial to reducing the overall optical length of the optical lens. In an exemplary embodiment, the first side surface of the fourth lens may be concave and the second side surface may be convex. With the first side surface of the fourth lens being concave, it can receive the light rays from the third lens and diverge the light rays, causing the light rays at the rear end to converge more slowly and making the light rays in the peripheral field of view show an upward trend, which is thus beneficial to matching with a large chip. With the second side surface of the fourth lens being convex, it can converge the light rays, thereby reducing the defocus between different fields of view, being beneficial to improving the resolution, shortening the distance for the light rays to reach the image plane, and thus being beneficial to reducing the overall optical length of the optical lens. In an exemplary embodiment, the first side surface of the fourth lens is convex and the second side surface is convex. With both the first and second side surfaces of the fourth lens being convex, it is beneficial to further converge the light rays emerging from the third lens, which is thus beneficial to the smooth transition of the light rays to the rear light system, reducing the sensitivity of the fourth lens, enabling the light rays to reach the imaging plane faster, and reducing the overall optical length of the optical lens. Moreover, the light rays in the peripheral field of view are deflected towards the optical axis after passing through the fourth lens, which is beneficial to reducing the aperture of the rear end of the system and is beneficial to the preliminary aberration correction of the incident light rays. In an exemplary embodiment, the first side surface of the fourth lens may be convex and the second side surface may be concave. With the first side surface of the fourth lens being convex, it can appropriately converge the light rays, which is beneficial for the fourth lens to receive the light rays emerging from the third lens and can reduce the height of the light rays in the lens, making the light ray trend stable, and thus reducing the aperture of the rear lens. Moreover, by reducing the height of the light rays in the lens, a relatively large edge thickness of the lens can be provided as much as possible under the condition of limited central thickness space, achieving better mechanical properties. With the second side surface of the fourth lens being concave, it can diverge the light rays to increase the incident angle of the peripheral light rays to the first side surface of the fifth lens, which is thus beneficial to improving the relative illumination of the peripheral field of view.

[0061] In an exemplary embodiment, the fifth lens may have a positive optical power. The fifth lens having a positive optical power is conducive to the rapid convergence of light rays to the imaging surface, slows down the upward trend of the light rays, avoids excessive light energy loss caused by too large an angle between the light rays of the large field of view and the main light rays of the chip when reaching the imaging surface, is conducive to improving the illuminance of the edge field of view, and is conducive to achieving a short overall optical length. 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 convex surface. Both the first side surface and the second side surface of the fifth lens being convex surfaces can enable the divergent light rays to converge better to the rear optical system, improve the resolution, and is conducive to increasing the back focal length and enhancing the illuminance. In an exemplary embodiment, the first side surface of the fifth lens is a convex surface, and the second side surface is a concave surface. The first side surface of the fifth lens being a convex surface is conducive to collecting the light rays entering through the fourth lens, and in combination with the second side surface of the fourth lens, can enable the light rays to transition smoothly and reduce sensitivity. The second side surface of the fifth lens being a concave surface is conducive to the appropriate divergence of the light rays, enabling the light rays to transition smoothly to the imaging surface, so that the angle of the light rays reaching the imaging surface meets the CRA requirements, and can improve the resolution and illuminance. 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. With this combination, it is conducive to the smooth transition of the light rays to the rear optical system, and can appropriately diverge the light rays emitted from the fourth lens, causing the light rays to deflect upward and expanding the image surface. The second side surface of the fifth lens being a convex surface can have the effect of converging the light rays, is conducive to reducing the aperture of the rear lens, and realizing the miniaturization of the optical lens.

[0062] In an exemplary embodiment, the fifth lens may have a negative optical power. Having a negative optical power for the fifth lens is conducive to appropriately diffusing light rays, thereby facilitating slowing down the light ray trend at the rear end of the optical lens, facilitating the achievement of a long back focal length, and being able to disperse the central light rays and marginal light rays 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 being a convex surface is conducive to appropriately converging light rays, enabling as many large-angle light rays in the periphery as possible to smoothly transition to the rear optical system, correcting astigmatism and field curvature, and improving the resolution ability of the optical system. The second side surface of the fifth lens being a concave surface is conducive to appropriately diverging light rays and smoothly transitioning to the imaging surface, enabling the angle of the light rays to the imaging surface to meet the CRA requirements and improving resolution and illuminance. 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 being a concave surface is conducive to the light rays smoothly transitioning to the rear optical system and can appropriately diverge the light rays emitted from the fourth lens, causing the light rays to deflect upward and expanding the imaging surface. The second side surface of the fifth lens being a convex surface can converge the light rays, which is conducive to reducing the rear port diameter. 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 concave surface. Both the first side surface and the second side surface of the fifth lens being concave surfaces is conducive to appropriately diverging light rays, enabling the light rays to smoothly transition to the imaging surface, enabling the angle of the light rays to the imaging surface to meet the CRA requirements, and also improving resolution and illuminance.

[0063] In an exemplary embodiment, a diaphragm for restricting 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 diaphragm is conducive to converging the light rays entering the optical system, balancing the aperture sizes of the lenses in the front and rear optical systems, and while making the light ray trend gentle, achieving a small FNO of the optical lens and reducing the assembly sensitivity of the optical lens. However, it should be noted that the position of the diaphragm disclosed herein is only an example and not a limitation; in alternative embodiments, the diaphragm may also be provided at other positions according to actual needs.

[0064] In an exemplary embodiment, at least one of the first lens to the fifth lens 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 reflecting the imaging quality, the number of aspherical lenses can be increased, and even all lenses can be aspherical lenses. The characteristic of an aspherical lens is that the curvature continuously changes from the center to the periphery of the lens. Different from a spherical lens with a constant curvature from the center to the periphery of the lens, an aspherical lens has better curvature radius characteristics and has the advantages of improving distortion aberration and astigmatism aberration. After using an aspherical lens, it is possible to eliminate the aberration that appears during imaging as much as possible, thereby improving the imaging quality of the lens. The setting of the aspherical lens helps to correct system aberration and improve the resolution ability.

[0065] Figure 1 FIG. shows a schematic structural diagram of an optical lens according to an embodiment of the present application. The optical lens provided by the present application can be used as, for example, a vehicle-mounted lens. At this time, Figure 1 where IMA represents the imaging surface, and light from an object sequentially passes through each surface S1 to S14 and finally forms an image on the imaging surface provided on the second side, wherein an image sensing chip is provided at the imaging surface. It should be understood that the optical lens provided by the present application can also be used as, for example, a projection lens or a laser radar transmitting end lens. At this time, Figure 1 where IMA represents the image source surface, and light from the image source surface sequentially passes through each surface S14 to S1 and finally projects onto a projection surface (not shown) provided on the first side.

[0066] In an exemplary embodiment, the optical lens may satisfy: 0.25 ≤ R11 / F ≤ 1.5, where 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 the 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 converging ability of paraxial small field-of-view light can be improved, which is beneficial to achieving a long focal length. Preferably, the optical lens may further satisfy: 0.4 ≤ R11 / F ≤ 1.15, which is more beneficial to achieving a large field of view, high resolution and long focal length of the optical lens. Preferably, the optical lens may further satisfy: 0.5879 ≤ R11 / F ≤ 1.0381, which is more beneficial to achieving a large field of view, high resolution and long focal length of the optical lens. In the exemplary embodiment, by making the optical lens satisfy 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), and controlling the range of the sagitta and radius of curvature of the first side surface of the first lens, it is beneficial to reduce the incident height of marginal field-of-view light, introduce large distortion, which is beneficial to achieving a large angular resolution in the center, improving the imaging quality of the central region, and at the same time, the long focal length characteristic and large field of view of the optical lens can be achieved.

[0067] In an exemplary embodiment, the optical lens may satisfy: -0.3 ≤ SAG1 / F1 ≤ -0.05, where SAG1 is the sagitta of the first side surface 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 azimuth can be highlighted. Compared with a lens with the same field of view angle, when the optical lens provided by the embodiment of the present application is matched with a chip of the same size, the proportion of the central field-of-view imaging range in the entire imaging range is larger. Furthermore, the imaging effect of distant objects of the optical lens provided by the embodiment of the present application is higher, and more detailed information can be obtained. At the same time, the deflection angle of the central field-of-view angle light can be reduced, and the difficulty of aberration correction of the central field of view of the optical lens can be reduced. Preferably, the optical lens may further satisfy: -0.21 ≤ SAG1 / F1 ≤ -0.085, which is more beneficial to achieving a large field of view and high resolution of the optical lens. Preferably, the optical lens may further satisfy: -0.187 ≤ SAG1 / F1 ≤ -0.1106, which is more beneficial to achieving a large field of view and high resolution of the optical lens.

[0068] In an exemplary embodiment, the optical lens may satisfy: R11 / SAG1 ≤ 7, where SAG1 is the sag of the first side of the first lens, and R11 is the radius of curvature of the first side of the first lens. In the exemplary embodiment, the first lens is an aspherical lens, with its center of the first side convex, the edge being gentle, and the edge angle being small. By making the optical lens satisfy the above conditional formula and reasonably setting the ratio of the sag to the radius of curvature value of the first side, it is beneficial to collect large-angle light in the edge field of view, reduce the height of the incident light in the edge field of view, and is conducive to achieving large distortion and improving the angular resolution at the center. In combination with the relatively small radius of curvature at the center of the first side of the first lens, it is possible to achieve both the long focal length characteristic and the large field of view of the optical lens. 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 at 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 at the center of the optical lens.

[0069] In an exemplary embodiment, the optical lens may satisfy: |arctan(1 / K(S1)) / θ2| ≤ 0.95, where arctan(1 / K(S1)) is the angle subtended by the first side of the first lens at the maximum field of view angle of the optical lens, and θ2 is the angle subtended by the first side of the first lens at a point one-quarter of the aperture from the center of the first lens (i.e., at (D1 / 2) / 2, where D1 is the distance from the center of the first side of the first lens to the center of the first lens). By making the optical lens satisfy the above conditional formula and controlling the relatively small edge angle and relatively large center angle of the first side of the first lens, it is beneficial to achieve large distortion in the edge field of view, making it easier to distinguish between the edge field of view light and the central edge field light, and thus large angular resolution at the center can be achieved. In this embodiment, when the edge angle and the center angle have the same sign (both positive or both negative), the edge curvature and the center curvature are in the same direction; when the signs of the edge angle and the center angle are opposite, the first side of the first lens has an anticlastic curvature. Preferably, the optical lens may further satisfy: 0.003 ≤ |arctan(1 / K(S1)) / θ2| ≤ 1.4, which is more conducive to achieving large distortion and large angular resolution at the center of the optical lens. Preferably, the optical lens may further satisfy: 0.0065 ≤ |arctan(1 / K(S1)) / θ2| ≤ 0.8541, which is more conducive to achieving large distortion and large angular resolution at the center of the optical lens.

[0070] In an exemplary embodiment, the optical lens may satisfy: -8 ≤ F1 / F ≤ -1.1, where F is the total effective focal length of the optical lens and F1 is the effective focal length of the first lens. By making the optical lens satisfy the above conditional expression 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 to collecting large-angle light within a limited radial space. At the same time, it can reduce the light height incident on the second side of the first lens and decrease the lens aperture, which is beneficial to achieving miniaturization. Preferably, the optical lens may further satisfy: -5 ≤ F1 / F ≤ -0.7, which is more beneficial to achieving miniaturization, low sensitivity, and long focal length of the optical lens. Preferably, the optical lens may further satisfy: -4.0571 ≤ F1 / F ≤ -1.4378, which is more beneficial to achieving miniaturization, low sensitivity, and long focal length of the optical lens.

[0071] In an exemplary embodiment, the optical lens may satisfy: 0.8 ≤ R11 / R12 ≤ 4, where 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 expression, the first side of the first lens is beneficial to light convergence and is beneficial to depressing the light. And by controlling the radii of curvature of the first side and the second side of the first lens, it is beneficial for light to enter the rear system, improve the image plane brightness, and at the same time can assist the light to converge smoothly, which is beneficial to improving the imaging quality. And it is beneficial for the light to transition smoothly to the rear optical system, enabling the optical lens to collect more light into the lens, which is beneficial to achieving a long focal length and can also improve the resolution ability. In an exemplary embodiment, the second side of the first lens is a concave surface. Making the optical lens satisfy the above conditional expression is beneficial to diverging the light and reducing the small front aperture. Preferably, the optical lens may further satisfy: 1.25 ≤ R11 / R12 ≤ 2.75, which is more beneficial to achieving a large field of view, miniaturization, low sensitivity, and high light transmission of the optical lens. Preferably, the optical lens may further satisfy 1.5702 ≤ R11 / R12 ≤ 2.4532, which is more beneficial to achieving a large field of view, miniaturization, low sensitivity, and high light transmission of the optical lens.

[0072] In an exemplary embodiment, the optical lens may satisfy: 80° ≤ (FOV × F) / H ≤ 100°, where 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 F is the total effective focal length of the optical lens. By making the optical lens satisfy the above conditional formula, the ratio among the maximum field of view angle, the total effective focal length, and the image height corresponding to the maximum field of view angle of the optical lens is controlled within a certain range, which not only helps the optical lens to balance long focal length and large field of view angle, but also facilitates the achievement of large angular resolution. Preferably, the optical lens may further satisfy: 88° ≤ (FOV × F) / H ≤ 90°, which is more conducive to achieving the balance of 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 balance of long focal length, large field of view, and high resolution of the optical lens.

[0073] In an exemplary embodiment, the optical lens may satisfy: 0.1 ≤ H(θ / 10) / (H / 2) ≤ 0.5, where H is the image height corresponding to the maximum field of view angle of the optical lens, and θ is the radian value corresponding to the maximum field of view angle of the optical lens. By making the optical lens satisfy the above conditional formula, the optical lens provided by the embodiments of the present application, compared with the related art, can make the proportion of the image height in the small-angle region larger when the image height corresponding to the maximum field of view angle of the optical lens is certain, which is more conducive to achieving large central angle resolution. Preferably, the optical lens may further satisfy: 0.1 ≤ H(θ / 10) / (H / 2) ≤ 0.37, which is more conducive to achieving 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 large distortion of the optical lens.

[0074] In an exemplary embodiment, the optical lens may satisfy: 0.25 ≤ (H / 2) / (F * tan(θ / 2)) ≤ 0.6, where H is the image height corresponding to the maximum field of view angle of the optical lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, 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 distortion of the edge field of view. By making the optical lens satisfy the above conditional formula, the optical lens provided by the embodiments of the present application can more favorably achieve a larger resolution of 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.

[0075] In an exemplary embodiment, the optical lens may satisfy: 0.8 ≤ |R21 / F| ≤ 30, where R21 is the radius of curvature of the first side surface 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 surface of the second lens, it is beneficial to correct aberrations, assist the light ray trend to be gentle, and is beneficial to improving the imaging quality and achieving high resolution. In this embodiment, the first side surface of the second lens is paired with the first lens, which can adjust the light ray trends in the central and peripheral fields of view, balance the astigmatism of the first lens, improve the imaging quality, and increase the resolution. Preferably, the optical lens may further satisfy: 1 ≤ |R21 / F| ≤ 28, which is more beneficial to achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 1.3419 ≤ |R21 / F| ≤ 18.6406, which is more beneficial to achieving high resolution of the optical lens.

[0076] In an exemplary embodiment, the optical lens may satisfy: 0 < |R21 / R32| ≤ 25, where R21 is the radius of curvature of the first side surface of the second lens, and R32 is the radius of curvature of the second side surface of the third lens. By making the optical lens satisfy the above conditional formula and reasonably setting the ratio of the radius of curvature of the first side surface of the second lens to the radius of curvature of the second side surface of the third lens, the light ray trend is gentle when the light ray is incident from the first side surface and exits from the second side surface, and the light ray deflection is small, which is beneficial to achieving high resolution and reducing the lens sensitivity. Preferably, the optical lens may further satisfy: 0.1 ≤ |R21 / R32| ≤ 20, which is more beneficial 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 beneficial to achieving high resolution and low sensitivity of the optical lens.

[0077] In an exemplary embodiment, the optical lens may satisfy: 0.5 ≤ |F23 / F| ≤ 35, where 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 and the third lens may be cemented to form a cemented component. By making the optical lens satisfy the above conditional formula and reasonably controlling the combined focal length of the cemented component, the light ray can be smoothly transitioned to the subsequent optical system. Moreover, the light ray exiting from the cemented component has a small deflection, which is beneficial to achieving high resolution. It can also increase the light ray regulation ability of the cemented lens, which is beneficial to achieving better resolution. Preferably, the optical lens may further satisfy: 1 ≤ |F23 / F| ≤ 30, which is more beneficial to achieving high resolution of the optical lens. Preferably, the optical lens may further satisfy: 1.4913 ≤ |F23 / F| ≤ 24.2764, which is more beneficial to achieving high resolution of the optical lens.

[0078] In an exemplary embodiment, the optical lens may satisfy: -10 ≤ F2 / F3 ≤ -0.1, where F2 is the effective focal length of the second lens and F3 is the effective focal length of the third lens. In the exemplary embodiment, one of the second lens and the third lens has a positive optical power and the other has a negative optical power. By making the optical lens satisfy the above conditional formula and controlling the focal length ratio of the second lens and the third lens, it is beneficial to control the light path and can converge / diverge the light rays diverged by the first lens, reduce the height of the light rays emerging from the second side of the third lens, so that the lens aperture of the third lens is reduced, which is beneficial to miniaturize the optical lens. At the same time, it is also beneficial to correct aberrations and achieve high resolution. Preferably, the optical lens may further satisfy: -8 ≤ F2 / F3 ≤ -0.15, which is more beneficial to miniaturize the optical lens. Preferably, the optical lens may further satisfy: -7.096 ≤ F2 / F3 ≤ -0.2062, which is more beneficial to miniaturize the optical lens.

[0079] In an exemplary embodiment, the optical lens may satisfy: 0.05 ≤ d12 / TTL ≤ 0.4, where d12 is the 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 and making the distance between the first lens and the second lens along the optical axis larger, it is beneficial to make the light rays emerging from the first lens transition smoothly, reduce the sensitivity of the first lens, and improve the resolution. In the exemplary embodiment, the second lens and the third lens are cemented. On this basis, making the distance between the first lens and the second lens along the optical axis larger can, on the basis of achieving miniaturization, be beneficial to the smooth transition of light rays, reduce light energy loss, and be beneficial to achieving better resolution. Preferably, the optical lens may further satisfy: 0.08 ≤ d12 / TTL ≤ 0.22, which is more beneficial to achieve high resolution of the optical lens. Preferably, the optical lens may further satisfy: 0.1101 ≤ d12 / TTL ≤ 0.1974, which is more beneficial to achieve high resolution of the optical lens.

[0080] In an exemplary embodiment, the optical lens may satisfy: d34 / TTL ≤ 0.2, where 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 conducive to reducing the total optical length of the optical lens and achieving miniaturization. In an exemplary embodiment, by 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 rays emitted by the third lens, reduce the height of the emitted light rays, and reduce the lens aperture, which is conducive to miniaturization. Preferably, the optical lens may further satisfy: 0.001 ≤ d34 / TTL ≤ 0.2, which is more conducive to achieving the miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 0.0043 ≤ d34 / TTL ≤ 0.134, which is more conducive to achieving the miniaturization of the optical lens.

[0081] In an exemplary embodiment, the optical lens may satisfy: d45 / TTL ≤ 0.2, where 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 conducive to reducing the total optical length of the optical lens and achieving miniaturization. In an exemplary embodiment, by 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 the light rays, and then can shorten the distance between the fourth lens and the fifth lens along the optical axis, which is conducive to miniaturization. Preferably, the optical lens may further satisfy: 0.001 ≤ d45 / TTL ≤ 0.038, which is more conducive to achieving the miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 0.0043 ≤ d45 / TTL ≤ 0.0275, which is more conducive to achieving the miniaturization of the optical lens.

[0082] In an exemplary embodiment, the optical lens may satisfy: 0.5 ≤ d12 / (d34 + d45) ≤ 30, where d12 is the distance between the first lens and the second lens along the optical axis, d34 is the distance between the third lens and the fourth lens along the optical axis, and d45 is the distance between the fourth lens and the fifth lens along the optical axis. By making the optical lens satisfy the above conditional expression, the distance between the first lens and the second lens along the optical axis is relatively large, which is conducive to the smooth transition of light. And the distances between the third lens and the fourth lens along the optical axis and between the fourth lens and the fifth lens along the optical axis are relatively small, which is conducive to miniaturization. Satisfying the range of the conditional expression is conducive to high resolution while taking miniaturization into account. Controlling the upper limit of the conditional expression is conducive to achieving miniaturization. Preferably, the optical lens may further satisfy: 0.75 ≤ d12 / (d34 + d45) ≤ 28, which is more conducive to achieving the miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 1.1265 ≤ d12 / (d34 + d45) ≤ 18.5575, which is more conducive to achieving the miniaturization of the optical lens.

[0083] In an exemplary embodiment, the optical lens may satisfy: 0.75 ≤ F4 / F ≤ 7, where 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 expression, the effective focal length of the fourth lens is relatively small, which can better compress the light passing through the fourth lens, is conducive to passing large-angle light in a limited space, and achieves high resolution while taking miniaturization into account. At the same time, it is conducive to reducing the height of the outgoing light and the aperture of the rear lens, which is conducive to miniaturization. Preferably, the optical lens may further satisfy: 1 ≤ F4 / F ≤ 6, which is more conducive to achieving the miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 1.2597 ≤ F4 / F ≤ 4.7724, which is more conducive to achieving the miniaturization of the optical lens.

[0084] 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 expression, the effective focal length of the fifth lens is relatively large, which is conducive to lengthening the back focal length. And the deflection angle of the converging or diverging light is small, and the exit angle of the light on the second side surface of the fifth lens can be controlled within a certain range, which is conducive to achieving a small CRA, correcting lens aberration, reducing lens sensitivity, and can correct 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 focal length, low sensitivity, and 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 focal length, low sensitivity, and small CRA of the optical lens and improving the imaging quality.

[0085] In an exemplary embodiment, the optical lens may satisfy: 0.1 mm 2 ≤F×(1 / F4 + 1 / F5)≤2 mm 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 together function to converge light. When the total effective focal length of the optical lens is fixed, making the focal length of the fourth lens smaller is beneficial for light convergence; making the focal length of the fifth lens larger is beneficial for the smooth transition of light. This is conducive to both reducing the rear aperture diameter and lengthening the back focal length, and achieving effects such as miniaturization and small CRA. By making the optical lens satisfy the above conditional formula, it is beneficial for the light to converge gently to the imaging surface, thereby improving the imaging quality and achieving high resolution. Preferably, the optical lens may further satisfy: 0.15 mm 2 ≤F×(1 / F4 + 1 / F5)≤1.8 mm 2 , which is more conducive to achieving high resolution and miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 0.3144 mm 2 ≤F×(1 / F4 + 1 / F5)≤1.3056 mm 2 , which is more conducive to achieving high resolution and miniaturization of the optical lens.

[0086] In an exemplary embodiment, the optical lens may satisfy: 0.4≤F / H≤1.5, where F is the total effective focal length of the optical lens and H is the image height corresponding to the maximum field of view angle of the optical lens. By making the optical lens satisfy the above conditional formula, controlling the total effective focal length of the optical lens and the image height corresponding to the maximum field of view angle within a certain range is beneficial for 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.

[0087] In an exemplary embodiment, the optical lens may satisfy: 0.12≤BFL / TTL≤0.4, where TTL is the overall optical length of the optical lens and BFL is the back focal length of the optical lens. By making the optical lens satisfy the above conditional formula, the requirement for the back focal length of the optical lens can be met, and at the same time, it is beneficial for achieving miniaturization. Preferably, the optical lens may further satisfy: 0.17≤BFL / TTL≤0.21, which is more conducive to achieving both a suitable back focal length and high resolution of the optical lens. Preferably, the optical lens may further satisfy: 0.1772≤BFL / TTL≤0.2035, which is more conducive to achieving both a suitable back focal length and high resolution of the optical lens.

[0088] In an exemplary embodiment, the optical lens may satisfy: 1 ≤ TTL / Dmax ≤ 3.5, where TTL is the total optical length of the optical lens, and Dmax is the maximum value among the maximum clear apertures of the sides of all lenses corresponding to the maximum field of view angle of the optical lens. The smaller the ratio of the distance from the center of the first side of the first lens to the imaging surface of the optical lens (the total optical length of the optical lens) to the maximum value among the maximum clear apertures of the sides of all lenses corresponding to the maximum field of view angle of the optical lens, the more compact the entire optical system. By making the optical lens satisfy the above conditional expression, 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 realizing the miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 2.1429 ≤ TTL / Dmax ≤ 2.7221, which is more conducive to realizing the miniaturization of the optical lens.

[0089] In an exemplary embodiment, the optical lens may satisfy: 2 ≤ TTL / F ≤ 6.5, where 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 expression, it is conducive to miniaturization and long focal length. Preferably, the optical lens may further satisfy: 3.75 ≤ TTL / F ≤ 5.8, which is more conducive to realizing the 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 realizing the miniaturization of the optical lens while taking into account high resolution.

[0090] In an exemplary embodiment, the optical lens may satisfy: 2 ≤ TTL / H / FOV × 180° ≤ 10, where 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 expression, it is conducive to realizing miniaturization while taking into account a large field of view and a large image plane. Preferably, the optical lens may further satisfy: 4 ≤ TTL / H / FOV × 180° ≤ 6.5, which is more conducive to realizing the miniaturization of the optical lens, a large field of view while taking into account high resolution. Preferably, the optical lens may further satisfy: 4.6692 ≤ TTL / H / FOV × 180° ≤ 6.1178, which is more conducive to realizing the miniaturization of the optical lens, a large field of view while taking into account high resolution.

[0091] In an exemplary embodiment, the optical lens may satisfy: 0.3 rad -1 ≤ D / H / θ ≤ 1 rad -1, where D is the maximum clear aperture of the first side of the first lens corresponding to the maximum field of view angle of the optical lens, θ is the radian value corresponding to the maximum field of view angle of the optical lens, and H is the image height corresponding to the maximum field of view angle of the optical lens. By making the optical lens satisfy the above conditional formula, it is beneficial to achieve a small front aperture and miniaturization of the optical lens. Preferably, the optical lens can further satisfy: 0.5 rad -1 ≤ D / H / θ ≤ 0.75 rad -1 , which is more beneficial to achieve a small aperture and miniaturization of the optical lens. Preferably, the optical lens can further satisfy: 0.5532 rad -1 ≤ D / H / θ ≤ 0.6979 rad -1 , which is more beneficial to achieve a small aperture and miniaturization of the optical lens.

[0092] In an exemplary embodiment, the optical lens can satisfy: 1.4 ≤ F / ENPD ≤ 1.7, where 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, which is beneficial to increasing the light passing amount and making the brightness of the peripheral field of view and the central field of view more uniform. Preferably, the optical lens can further satisfy: 1.55 ≤ F / ENPD ≤ 1.65, which is more beneficial to achieving a large aperture and high light passing of the optical lens. Preferably, the optical lens can further satisfy: 1.575 ≤ F / ENPD ≤ 1.6, which is more beneficial to achieving a large aperture and high light passing of the optical lens.

[0093] In an exemplary embodiment, the optical lens can satisfy: 0.15 ≤ dj / TTL ≤ 0.5, where dj is the thickness of the cemented component formed by cementing the second lens and the third lens, and TTL is the overall optical length of the optical lens. In an exemplary embodiment, the second lens and the third lens are cemented to form a cemented component. By making the optical lens satisfy the above conditional formula, the central thickness of the cemented component can be appropriately increased within a certain range, which is beneficial to enhancing the light control ability of the optical lens, so as to facilitate controlling more light to enter the rear optical system and improving the relative illumination. Preferably, the optical lens can further satisfy: 0.18 ≤ dj / TTL ≤ 0.45, which is more beneficial to achieving a high relative illumination of the optical lens. Preferably, the optical lens can further satisfy: 0.2175 ≤ dj / TTL ≤ 0.3842, which is more beneficial to achieving a high relative illumination of the optical lens.

[0094] 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, where 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 the exemplary embodiment, the second lens and the third lens may form a cemented lens. By making the optical lens satisfy the above conditional expressions, it is beneficial to control the effective focal lengths of the cemented lens formed by the second lens and the third lens and the fourth lens and the fifth lens, so that after the light is diverged by the first lens, it can be quickly converged first and then smoothly transitioned. Among them, the cemented lens can quickly converge the light, and further increase the light control ability of the cemented lens, which is beneficial to achieving better resolution; the fourth lens and the fifth lens can smoothly transition the light, which can make the light smoothly transition to the rear lens, beneficial to reducing CRA, reducing sensitivity, and improving resolution. Preferably, the optical lens may 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 beneficial to achieving high resolution and miniaturization of the optical lens. Preferably, the optical lens may 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 beneficial to achieving high resolution and miniaturization of the optical lens.

[0095] 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, where 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 the exemplary embodiment, the second lens and the third lens may form a cemented element. By making the optical lens satisfy the above conditional formula, after the light is diverged by the first lens, the light can be smoothly transitioned first and then quickly converged. Among them, the cemented element can smoothly transition the light and transition the light smoothly to the rear optical system, which is beneficial to better correcting chromatic aberration and improving the imaging quality; the fourth lens and the fifth lens quickly converge the light, which is beneficial to quickly converging the light to the imaging surface, avoiding light energy loss, and can improve the illuminance of the edge field of view, and is also beneficial to realizing miniaturization. Preferably, the optical lens may further satisfy: -0.28 ≤ (1 / F23) / (1 / F) ≤ 0.35 and 0.95 ≤ (1 / F4 + 1 / F5) / (1 / F) ≤ 1.35, which is more beneficial to realizing high resolution and miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 1.0809 ≤ (1 / F4 + 1 / F5) / (1 / F) ≤ 1.3056, which is more beneficial to realizing high resolution and miniaturization of the optical lens.

[0096] In an exemplary embodiment, the optical lens may satisfy: 0.75 ≤ (1 / F23 + 1 / F4 + 1 / F5) / (1 / F) ≤ 1.65, where 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 overall regulate the light trend, so that the light is smoothly converged to the imaging surface, which is beneficial to reducing sensitivity, improving relative illuminance, reducing CRA, improving resolution quality, and realizing miniaturization. Preferably, the optical lens may further satisfy: 0.8 ≤ (1 / F23 + 1 / F4 + 1 / F5) / (1 / F) ≤ 1.5, which is more beneficial to realizing high resolution and miniaturization of the optical lens. Preferably, the optical lens may further satisfy: 0.9205 ≤ (1 / F23 + 1 / F4 + 1 / F5) / (1 / F) ≤ 1.3469, which is more beneficial to realizing high resolution and miniaturization of the optical lens.

[0097] In an exemplary embodiment, the optical lens may satisfy: |F1 / F23| ≤ 3, where 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 cemented to form a cemented component. By making the optical lens satisfy the above conditional formula and reasonably setting the ratio of the effective focal length of the first lens to the cemented component, it is beneficial to adjust the light rays' trend in the central and peripheral fields of view, enabling the cemented component to share the distortion amount of the first lens, reducing the sensitivity of the optical lens, balancing the astigmatism of the optical lens, improving the imaging quality, and enhancing 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.

[0098] 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 rays with different wavelengths, and the protective glass may prevent the components (e.g., chips) on the second side of the optical lens from being damaged.

[0099] In an exemplary embodiment, the first lens to the fifth lens may be glass lenses or plastic lenses. The present application does not specifically limit the specific number of glass lenses and plastic lenses. The optical lens made of glass can suppress the shift of the back focal length of the optical lens with temperature changes to improve the system stability. At the same time, using glass material can avoid problems such as blurred imaging of the lens and affecting the normal use of the lens caused by high and low temperature changes in the use environment. Specifically, when focusing on temperature performance and resolution quality, the first lens to the fifth lens may all be glass aspherical lenses. In application scenarios with lower requirements for temperature stability, the first lens to the sixth lens in the optical lens may also all be made of plastic. Making the optical lens with plastic can effectively reduce the manufacturing cost. Of course, the first lens to the fifth lens in the optical lens may also be made of a combination of plastic and glass.

[0100] Through reasonable setting of parameters such as the shape and optical power of each lens, the optical lens according to the above embodiment of the present application has at least one beneficial effect such as a large field of view, a small aperture, a high light flux, miniaturization, high resolution, low sensitivity, a long back focal length, a small CRA, a long focal length, a large aperture, a high relative illuminance, a large distortion, and a large angular resolution at the center.

[0101] However, those skilled in the art should understand that, without departing from the technical solution claimed in this 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 embodiments, the optical lens is not limited to including five lenses. If necessary, the optical lens may also include other numbers of lenses. Specific embodiments of the optical lens applicable to the above embodiments will be further described with reference to the accompanying drawings. Embodiment 1

[0102] The following is a reference to Figure 1 which describes an optical lens according to Embodiment 1 of this application. Figure 1 FIG. shows a schematic structural diagram of an optical lens according to Embodiment 1 of this application.

[0103] As Figure 1 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0104] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0105] The second lens L2 has a negative optical power, its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0106] The third lens L3 has a positive optical power, its first side S5 is a convex surface, and its second side S6 is a convex surface.

[0107] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0108] The fifth lens L5 has a positive optical power, its first side S9 is a convex surface, and its second side S10 is a concave surface.

[0109] Among them, the second lens and the third lens are cemented.

[0110] 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.

[0111] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0112] The optical lens provided by this application can be used as, for example, a vehicle-mounted lens. At this time, Figure 1In the IMA represents the imaging surface, light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface IMA provided on the second side. Wherein, an image sensing chip is provided at 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 lidar transmitting end lens. At this time, Figure 1 In the IMA represents the image source surface, light from the image source surface sequentially passes through the surfaces S14 to S1 and finally projects onto a projection surface (not shown) provided on the first side.

[0113] 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 1.

[0114] Table 1

[0115]

[0116] In this embodiment, the first side surface S1 and the second side surface S2 of the first lens L1 can be aspherical surfaces. The surface profiles of each aspherical lens can be defined by, but not limited to, the following aspherical formula:

[0117] (1)

[0118] Wherein, x is the sagitta, the distance from the vertex of the aspherical surface when the aspherical surface is at a position with a height of h along the optical axis direction; c is the paraxial curvature of the aspherical surface, c = 1 / R (that is, the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; Ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below gives the conic coefficients k and the higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 1.

[0119] Table 2

[0120]

[0121] Figure 27 Shows a schematic diagram of the MTF curve of the central field of view rays of the optical lens of Example 1, as Figure 27 shown. In this embodiment, in terms of MTF, the MTF (Modulation Transfer Function) value of the central field of view rays of the optical lens exceeds 0.86 at a spatial frequency of 83 lp / mm (83 line pairs / mm). Among them, MTF describes the ability of the optical lens to "restore" the object space in the image space. The abscissa of the MTF graph is the spatial frequency. According to the above values, the optical lens provided in this embodiment has a high resolution ability. The MTF curve graphs of other embodiments are similar to the above graph and will not be elaborated here. Embodiment 2

[0122] The following is a reference to Figure 2 the optical lens according to Embodiment 2 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 2 FIG. shows a schematic structural diagram of the optical lens according to Embodiment 2 of the present application.

[0123] As Figure 2 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0124] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0125] The second lens L2 has a negative optical power, its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0126] The third lens L3 has a positive optical power, its first side S5 is a convex surface, and its second side S6 is a convex surface.

[0127] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0128] The fifth lens L5 has a positive optical power, its first side S9 is a convex surface, and its second side S10 is a concave surface.

[0129] 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.

[0130] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0131] 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 Embodiment 2. Table 4 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Embodiment 2, wherein each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0132] Table 3

[0133]

[0134] Table 4

[0135]

[0136] In this embodiment, in terms of MTF, the MTF value of the central field light of the optical lens exceeds 0.86 at a spatial frequency of 83 lp / mm (83 line pairs per millimeter). According to the above values, the optical lens provided in this embodiment has a high resolution ability.

[0137] Figure 28 The schematic diagram of the distortion curves of the optical lenses of Embodiment 1 and Embodiment 2 is shown. Embodiment 3

[0138] The following refers to 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 those of Embodiment 1 will be omitted. Figure 3 The schematic structural diagram of the optical lens according to Embodiment 3 of the present application is shown.

[0139] As Figure 3 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0140] The first lens L1 has a negative optical power. Its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0141] The second lens L2 has a negative optical power. Its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0142] The third lens L3 has a positive optical power. Its first side S5 is a convex surface, and its second side S6 is a convex surface.

[0143] The fourth lens L4 has a positive optical power. Its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0144] The fifth lens L5 has a negative optical power. Its first side S9 is a convex surface, and its second side S10 is a concave surface.

[0145] 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.

[0146] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0147] 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 Embodiment 3. Table 6 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical lens surfaces S1 and S2 of the aspherical lens L1 that can be used in Embodiment 3. Among them, each aspherical surface type can be defined by formula (1) given in Embodiment 1 above.

[0148] Table 5

[0149]

[0150] Table 6

[0151] Embodiment 4

[0152] The following refers to Figure 4 This describes an optical lens according to Embodiment 4 of the present application. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 4 Fig. shows a schematic structural diagram of an optical lens according to Embodiment 4 of the present application.

[0153] As Figure 4 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0154] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0155] The second lens L2 has a negative optical power, its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0156] The third lens L3 has a positive optical power, its first side S5 is a convex surface, and its second side S6 is a convex surface.

[0157] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0158] The fifth lens L5 has a negative optical power, its first side S9 is a convex surface, and its second side S10 is a concave surface.

[0159] 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.

[0160] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0161] Table 7 shows the radius of curvature R, thickness / distance, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 4. Table 8 shows the conic coefficients k and higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical lens surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 4. Among them, each aspherical surface type can be defined by formula (1) given in Example 1 above.

[0162] Table 7

[0163]

[0164] Table 8

[0165]

[0166] In Examples 3 and 4, in terms of MTF, the MTF value of the central field light of the optical lens exceeds 0.84 at a spatial frequency of 83 lp / mm (83 line pairs / mm). Based on the above values, the optical lenses provided in Examples 3 and 4 have a high resolution ability.

[0167] Figure 29 Shows a schematic diagram of the distortion curve of the optical lenses of Examples 3 and 4. Example 5

[0168] The following refers to Figure 8 Describes an optical lens according to Embodiment 5 of the present application. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Example 1 will be omitted. Figure 8 Shows a schematic structural diagram of an optical lens according to Embodiment 5 of the present application.

[0169] As Figure 8 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0170] The first lens L1 has a negative optical power. Its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0171] The second lens L2 has a positive optical power. Its first side S3 is a convex surface, and its second side S4 is a convex surface.

[0172] The third lens L3 has a negative optical power. Its first side S5 is a concave surface, and its second side S6 is a concave surface.

[0173] The fourth lens L4 has a positive optical power. Its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0174] The fifth lens L5 has a positive focal power, its first side S9 is convex, and its second side S10 is convex.

[0175] 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.

[0176] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0177] 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 coefficients k and higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 5, where each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0178] Table 9

[0179]

[0180] Table 10

[0181] Example 6

[0182] The following refers to Figure 9 This describes the optical lens according to Embodiment 6 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 9 The structural schematic diagram of the optical lens according to Embodiment 6 of the present application is shown.

[0183] As Figure 9 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0184] The first lens L1 has a negative focal power, its first side S1 is convex, and its second side S2 is concave.

[0185] The second lens L2 has a positive focal power, its first side S3 is convex, and its second side S4 is convex.

[0186] The third lens L3 has a negative focal power, its first side S5 is concave, and its second side S6 is concave.

[0187] The fourth lens L4 has a positive focal power, its first side S7 is convex, and its second side S8 is convex.

[0188] The fifth lens L5 has a positive optical power, its first side S9 is convex, and its second side S10 is convex.

[0189] 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.

[0190] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0191] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 6, where each aspherical surface profile can be defined by the formula (1) given in Example 1 above.

[0192] Table 11

[0193]

[0194] Table 12

[0195]

[0196] 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 83 lp / mm (83 line pairs / mm) exceeds 0.83. According to the above values, the optical lenses provided in Examples 5 and 6 have a high resolution ability.

[0197] Figure 30 Shows a schematic diagram of the distortion curve of the optical lenses of Examples 5 and 6. Example 7

[0198] The following refers to Figure 7 Describes an optical lens according to Embodiment 7 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 7 Shows a schematic structural diagram of an optical lens according to Embodiment 7 of the present application.

[0199] As Figure 7 Shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0200] The first lens L1 has a negative optical power, its first side S1 is convex, and its second side S2 is concave.

[0201] The second lens L2 has a positive optical power, its first side S3 is convex, and its second side S4 is convex.

[0202] The third lens L3 has a negative optical power, its first side S5 is concave, and its second side S6 is convex.

[0203] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is convex.

[0204] The fifth lens L5 has a negative optical power, its first side S9 is concave, and its second side S10 is convex.

[0205] Among them, the first side S1 of the first lens L1 has an anastigmatism.

[0206] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the third lens L3 and the fourth lens L4.

[0207] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0208] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 7. Among them, each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0209] Table 13

[0210]

[0211] Table 14

[0212] Example 8

[0213] The following is referred to Figure 8 to describe the optical lens according to Embodiment 8 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 8 shows a schematic structural diagram of the optical lens according to Embodiment 8 of the present application.

[0214] As Figure 8 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0215] The first lens L1 has a negative optical power, its first side S1 is convex, and its second side S2 is concave.

[0216] The second lens L2 has a positive optical power, its first side S3 is convex, and its second side S4 is convex.

[0217] The third lens L3 has a negative optical power, its first side S5 is concave, and its second side S6 is convex.

[0218] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is convex.

[0219] The fifth lens L5 has a negative optical power, its first side S9 is concave, and its second side S10 is convex.

[0220] Among them, the first side S1 of the first lens L1 has an anamorphic curve.

[0221] 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.

[0222] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0223] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 8. Among them, each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0224] Table 15

[0225]

[0226] Table 16

[0227]

[0228] 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 83 lp / mm (83 line pairs / mm) exceeds 0.88. According to the above values, the optical lenses provided in Examples 7 and 8 have a high resolution ability.

[0229] Figure 31 Shows a schematic diagram of the distortion curve of the optical lenses of Examples 7 and 8. Embodiment 9

[0230] The following refers to Figure 9 an optical lens according to Embodiment 9 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 9 FIG. shows a schematic structural diagram of an optical lens according to Embodiment 9 of the present application.

[0231] As Figure 9 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0232] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0233] The second lens L2 has a negative optical power, its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0234] The third lens L3 has a positive optical power, its first side S5 is a convex surface, and its second side S6 is a convex surface.

[0235] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a concave surface.

[0236] The fifth lens L5 has a positive optical power, its first side S9 is a convex surface, and its second side S10 is a concave surface.

[0237] Among them, the first side S1 of the first lens L1 has an anastigmatism.

[0238] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the first lens L1 and the second lens L2.

[0239] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0240] 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 Embodiment 9. Table 18 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Embodiment 9. Among them, each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0241] Table 17

[0242]

[0243] Table 18

[0244] Example 10

[0245] The following refers to Figure 10 and describes an optical lens according to Example 10 of the present application. In this example and the following examples, for the sake of brevity, some descriptions similar to those in Example 1 will be omitted. Figure 10 Fig. shows a schematic structural diagram of an optical lens according to Example 10 of the present application.

[0246] As Figure 10 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0247] The first lens L1 has a negative optical power, its first side S1 is convex, and its second side S2 is concave.

[0248] The second lens L2 has a negative optical power, its first side S3 is convex, and its second side S4 is concave.

[0249] The third lens L3 has a positive optical power, its first side S5 is convex, and its second side S6 is convex.

[0250] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is concave.

[0251] The fifth lens L5 has a positive optical power, its first side S9 is convex, and its second side S10 is concave.

[0252] Among them, the first side S1 of the first lens L1 has an aspheric curve.

[0253] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the first lens L1 and the second lens L2.

[0254] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0255] Table 19 shows the radius of curvature R, thickness / distance, refractive index Nd, and Abbe number Vd of each lens of the optical lens in Example 10. Table 20 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspheric surfaces S1 and S2 of the aspheric lens L1 that can be used in Example 10, where each aspheric surface type can be defined by formula (1) given in Example 1 above.

[0256] Table 19

[0257]

[0258] Table 20

[0259]

[0260] In Examples 9 and 10, in terms of MTF, the MTF value of the central field light of the optical lens exceeds 0.8 at a spatial frequency of 83 lp / mm (83 line pairs per millimeter). According to the above values, the optical lenses provided in Examples 9 and 10 have a relatively high resolution ability.

[0261] Figure 32 The schematic diagram of the distortion curve of the optical lenses in Examples 9 and 10 is shown. Example 11

[0262] The following is referred to Figure 11 to describe the optical lens according to Embodiment 11 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 11 The schematic structural diagram of the optical lens according to Embodiment 11 of the present application is shown.

[0263] As Figure 11 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0264] The first lens L1 has a negative optical power. Its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0265] The second lens L2 has a negative optical power. Its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0266] The third lens L3 has a positive optical power. Its first side S5 is a convex surface, and its second side S6 is a convex surface.

[0267] The fourth lens L4 has a positive optical power. Its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0268] The fifth lens L5 has a negative optical power. Its first side S9 is a concave surface, and its second side S10 is a concave surface.

[0269] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the first lens L1 and the second lens L2.

[0270] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0271] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical lens surfaces S1 and S2 that can be used in Example 11. Among them, each aspherical surface type can be defined by the formula (1) given in Example 1 above.

[0272] Table 21

[0273]

[0274] Table 22

[0275] Example 12

[0276] The following refers to Figure 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 those in Embodiment 1 will be omitted. Figure 12 A schematic structural diagram of the optical lens according to Embodiment 12 of the present application is shown.

[0277] As Figure 12 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0278] The first lens L1 has a negative optical power. Its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0279] The second lens L2 has a negative optical power. Its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0280] The third lens L3 has a positive optical power. Its first side S5 is a convex surface, and its second side S6 is a convex surface.

[0281] The fourth lens L4 has a positive optical power. Its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0282] The fifth lens L5 has a negative optical power. Its first side S9 is a concave surface, and its second side S10 is a concave surface.

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

[0284] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0285] Table 23 shows the radius of curvature R, thickness / distance, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 12. Table 24 shows the conic coefficients k and higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 12. Among them, each aspherical surface type can be defined by formula (1) given in Example 1 above.

[0286] Table 23

[0287]

[0288] Table 24

[0289]

[0290] 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 83 lp / mm (83 line pairs / mm) exceeds 0.81. According to the above values, the optical lenses provided in Examples 11 and 12 have a high resolution ability.

[0291] Figure 33 Shows a schematic diagram of the distortion curve of the optical lenses of Examples 11 and 12. Example 13

[0292] The following refers to Figure 13 Describes an optical lens according to Embodiment 13 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Example 1 will be omitted. Figure 13 Shows a schematic structural diagram of an optical lens according to Embodiment 13 of the present application.

[0293] As Figure 13 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0294] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0295] The second lens L2 has a negative optical power, its first side S3 is a concave surface, and its second side S4 is a concave surface.

[0296] The third lens L3 has a positive optical power, its first side S5 is convex, and its second side S6 is convex.

[0297] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is concave.

[0298] The fifth lens L5 has a positive optical power, its first side S9 is convex, and its second side S10 is concave.

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

[0300] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0301] 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 conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 13. Among them, each aspherical surface type can be defined by the formula (1) given in Example 1 above.

[0302] Table 25

[0303]

[0304] Table 26

[0305] Example 14

[0306] The following is referred to Figure 14 to describe the optical lens according to Embodiment 14 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 14 Fig. shows a schematic structural diagram of the optical lens according to Embodiment 14 of the present application.

[0307] As Figure 14 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

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

[0309] The second lens L2 has a negative optical power, its first side S3 is concave, and its second side S4 is concave.

[0310] The third lens L3 has a positive optical power, its first side S5 is convex, and its second side S6 is convex.

[0311] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is concave.

[0312] The fifth lens L5 has a positive optical power, its first side S9 is convex, and its second side S10 is concave.

[0313] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the first lens L1 and the second lens L2.

[0314] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0315] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 14. Among them, each aspherical surface profile can be defined by the formula (1) given in Example 1 above.

[0316] Table 27

[0317]

[0318] Table 28

[0319]

[0320] 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 83 lp / mm (83 line pairs / mm) exceeds 0.83. According to the above values, the optical lenses provided in Examples 13 and 14 have a high resolution ability.

[0321] Figure 34 Shows a schematic diagram of the distortion curve of the optical lenses of Examples 13 and 14. Example 15

[0322] The following refers to Figure 15 Describes an optical lens according to Embodiment 15 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Example 1 will be omitted. Figure 15 Shows a schematic structural diagram of an optical lens according to Embodiment 15 of the present application.

[0323] As shown Figure 15 in FIG. 1, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

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

[0325] The second lens L2 has a positive focal power, its first side S3 is convex, and its second side S4 is convex.

[0326] The third lens L3 has a negative focal power, its first side S5 is concave, and its second side S6 is concave.

[0327] The fourth lens L4 has a positive focal power, its first side S7 is concave, and its second side S8 is convex.

[0328] The fifth lens L5 has a positive focal power, its first side S9 is convex, and its second side S10 is concave.

[0329] 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.

[0330] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0331] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 15, where each aspherical surface type can be defined by formula (1) given in Example 1 above.

[0332] Table 29

[0333]

[0334] Table 30

[0335] Example 16

[0336] The following refers to Figure 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 those in Embodiment 1 will be omitted. Figure 16Shows a schematic structural diagram of an optical lens according to Embodiment 16 of the present application.

[0337] As Figure 16 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0338] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0339] The second lens L2 has a positive optical power, its first side S3 is a convex surface, and its second side S4 is a convex surface.

[0340] The third lens L3 has a negative optical power, its first side S5 is a concave surface, and its second side S6 is a concave surface.

[0341] The fourth lens L4 has a positive optical power, its first side S7 is a concave surface, and its second side S8 is a convex surface.

[0342] The fifth lens L5 has a positive optical power, its first side S9 is a convex surface, and its second side S10 is a concave surface.

[0343] 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.

[0344] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0345] 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 Embodiment 16. Table 32 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Embodiment 16, wherein each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0346] Table 31

[0347]

[0348] Table 32

[0349]

[0350] Figure 35 Shows a schematic diagram of the distortion curves of the optical lenses of Embodiments 15 and 16. Embodiment 17

[0351] The following is a reference to Figure 17 which describes an optical lens according to Embodiment 17 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 17 FIG. shows a schematic structural diagram of the optical lens according to Embodiment 17 of the present application.

[0352] As Figure 17 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0353] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0354] The second lens L2 has a positive optical power, its first side S3 is a convex surface, and its second side S4 is a convex surface.

[0355] The third lens L3 has a negative optical power, its first side S5 is a concave surface, and its second side S6 is a convex surface.

[0356] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0357] The fifth lens L5 has a positive optical power, its first side S9 is a concave surface, and its second side S10 is a convex surface.

[0358] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the third lens L3 and the fourth lens L4.

[0359] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0360] 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 Embodiment 17. Table 34 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Embodiment 17, where each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0361] Table 33

[0362]

[0363] Table 34

[0364] Embodiment 18

[0365] The following is a reference to Figure 18 which describes an optical lens according to Embodiment 18 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 18 Fig. shows a schematic structural diagram of the optical lens according to Embodiment 18 of the present application.

[0366] As Figure 18 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0367] The first lens L1 has a negative optical power, its first side S1 is convex, and its second side S2 is concave.

[0368] The second lens L2 has a positive optical power, its first side S3 is convex, and its second side S4 is convex.

[0369] The third lens L3 has a negative optical power, its first side S5 is concave, and its second side S6 is convex.

[0370] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is convex.

[0371] The fifth lens L5 has a positive optical power, its first side S9 is concave, and its second side S10 is convex.

[0372] 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.

[0373] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0374] Table 35 shows the radius of curvature R, thickness / distance, refractive index Nd, and Abbe number Vd of each lens of the optical lens in Embodiment 18. Table 36 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Embodiment 18, wherein each aspherical surface profile can be defined by formula (1) given in Embodiment 1 above.

[0375] Table 35

[0376]

[0377] Table 36

[0378]

[0379] Figure 36 Schematic diagram of the distortion curve of the optical lens of Embodiments 17 and 18 is shown. Embodiment 19

[0380] The following is referred to Figure 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 simplicity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 19 Schematic diagram of the structure of the optical lens according to Embodiment 19 of the present application is shown.

[0381] As Figure 19 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0382] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0383] The second lens L2 has a positive optical power, its first side S3 is a convex surface, and its second side S4 is a convex surface.

[0384] The third lens L3 has a negative optical power, its first side S5 is a concave surface, and its second side S6 is a convex surface.

[0385] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0386] The fifth lens L5 has a positive optical power, its first side S9 is a convex surface, and its second side S10 is a convex surface.

[0387] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the third lens L3 and the fourth lens L4.

[0388] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0389] 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 Embodiment 19. Table 38 shows the conic coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Embodiment 9, wherein each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0390] Table 37

[0391]

[0392] Table 38

[0393] Example 20

[0394] The following refers to Figure 20 An optical lens according to Example 20 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Example 1 will be omitted. Figure 20 A schematic structural diagram of an optical lens according to Example 20 of the present application is shown.

[0395] As Figure 20 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0396] The first lens L1 has a negative optical power, its first side S1 is convex, and its second side S2 is concave.

[0397] The second lens L2 has a positive optical power, its first side S3 is convex, and its second side S4 is convex.

[0398] The third lens L3 has a negative optical power, its first side S5 is concave, and its second side S6 is convex.

[0399] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is convex.

[0400] The fifth lens L5 has a positive optical power, its first side S9 is convex, and its second side S10 is convex.

[0401] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the third lens L3 and the fourth lens L4.

[0402] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0403] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 20, wherein each aspherical surface type can be defined by the formula (1) given in Example 1 above.

[0404] Table 39

[0405]

[0406] Table 40

[0407]

[0408] Figure 37 The schematic diagram of the distortion curves of the optical lenses of Embodiments 19 and 20 is shown. Embodiment 21

[0409] The following refers to Figure 21 The optical lens according to Embodiment 21 of the present application is described. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those of Embodiment 1 will be omitted. Figure 21 The schematic diagram of the structure of the optical lens according to Embodiment 21 of the present application is shown.

[0410] As Figure 21 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0411] The first lens L1 has a negative optical power, its first side S1 is convex, and its second side S2 is concave.

[0412] The second lens L2 has a positive optical power, its first side S3 is convex, and its second side S4 is concave.

[0413] The third lens L3 has a negative optical power, its first side S5 is convex, and its second side S6 is concave.

[0414] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is convex.

[0415] The fifth lens L5 has a positive optical power, its first side S9 is convex, and its second side S10 is convex.

[0416] 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.

[0417] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0418] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical lens surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 21. Among them, each aspherical surface type can be defined by formula (1) given in Example 1 above.

[0419] Table 41

[0420]

[0421] Table 42

[0422] Example 22

[0423] The following refers to Figure 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 those in Embodiment 1 will be omitted. Figure 22 shows a schematic structural diagram of an optical lens according to Embodiment 22 of the present application.

[0424] As Figure 22 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0425] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0426] The second lens L2 has a positive optical power, its first side S3 is a convex surface, and its second side S4 is a concave surface.

[0427] The third lens L3 has a negative optical power, its first side S5 is a convex surface, and its second side S6 is a concave surface.

[0428] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0429] The fifth lens L5 has a positive optical power, its first side S9 is a convex surface, and its second side S10 is a convex surface.

[0430] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the third lens L3 and the fourth lens L4.

[0431] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0432] 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 coefficients k and higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical lens surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 22. Among them, each aspherical surface type can be defined by the formula (1) given in Example 1 above.

[0433] Table 43

[0434]

[0435] Table 44

[0436]

[0437] Figure 38 shows a schematic diagram of the distortion curves of the optical lenses of Examples 21 and 22. Example 23

[0438] The following refers to Figure 23 describes the optical lens according to Embodiment 23 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 23 shows a schematic structural diagram of the optical lens according to Embodiment 23 of the present application.

[0439] As Figure 23 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0440] The first lens L1 has a negative optical power. Its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0441] The second lens L2 has a positive optical power. Its first side S3 is a concave surface, and its second side S4 is a convex surface.

[0442] The third lens L3 has a negative optical power. Its first side S5 is a concave surface, and its second side S6 is a concave surface.

[0443] The fourth lens L4 has a positive optical power. Its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0444] The fifth lens L5 has a positive optical power. Its first side S9 is a convex surface, and its second side S10 is a convex surface.

[0445] 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.

[0446] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0447] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 23. Among them, each aspherical surface profile can be defined by formula (1) given in Example 1 above.

[0448] Table 45

[0449]

[0450] Table 46

[0451] Example 24

[0452] The following is a reference to Figure 24 The optical lens according to Embodiment 24 of the present application is described. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 24 The structural schematic diagram of the optical lens according to Embodiment 24 of the present application is shown.

[0453] As Figure 24 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0454] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0455] The second lens L2 has a positive optical power, its first side S3 is a concave surface, and its second side S4 is a convex surface.

[0456] The third lens L3 has a negative optical power, its first side S5 is a concave surface, and its second side S6 is a concave surface.

[0457] The fourth lens L4 has a positive optical power, its first side S7 is a convex surface, and its second side S8 is a convex surface.

[0458] The fifth lens L5 has a positive optical power, its first side S9 is a convex surface, and its second side S10 is a convex surface.

[0459] 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.

[0460] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0461] 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 coefficients k and higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1 and S2 of the aspherical lens L1 that can be used in Example 24, where each aspherical surface type can be defined by the formula (1) given in Example 1 above.

[0462] Table 47

[0463]

[0464] Table 48

[0465]

[0466] 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 83 lp / mm (83 line pairs / mm) exceeds 0.84. Based on the above values, the optical lenses provided in Examples 23 and 24 have a high resolution ability.

[0467] Figure 39 Shows a schematic diagram of the distortion curve of the optical lenses of Examples 23 and 24. Example 25

[0468] The following refers to Figure 25 Describes an optical lens according to Embodiment 25 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Example 1 will be omitted. Figure 25 Shows a schematic structural diagram of an optical lens according to Embodiment 25 of the present application.

[0469] As Figure 25 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0470] The first lens L1 has a negative optical power, its first side S1 is a convex surface, and its second side S2 is a concave surface.

[0471] The second lens L2 has a positive optical power, its first side S3 is a convex surface, and its second side S4 is a convex surface.

[0472] The third lens L3 has a negative optical power, its first side S5 is concave, and its second side S6 is convex.

[0473] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is concave.

[0474] The fifth lens L5 has a negative optical power, its first side S9 is concave, and its second side S10 is concave.

[0475] Among them, the first side S1 of the first lens L1 has an anastigmatism.

[0476] 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.

[0477] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0478] 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 coefficients k and higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1, S2, S7, and S8 of the aspherical lenses L1 and L4 that can be used in Example 25. Among them, each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0479] Table 49

[0480]

[0481] Table 50

[0482] Example 26

[0483] The following refers to Figure 26 describes the optical lens according to Embodiment 26 of the present application. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to those in Embodiment 1 will be omitted. Figure 26 shows a schematic structural diagram of the optical lens according to Embodiment 2 of the present application.

[0484] As Figure 26 shown, the optical lens sequentially includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 along the optical axis from the first side to the second side.

[0485] The first lens L1 has a negative optical power, its first side S1 is convex, and its second side S2 is concave.

[0486] The second lens L2 has a positive optical power, its first side S3 is convex, and its second side S4 is convex.

[0487] The third lens L3 has a negative optical power, its first side S5 is concave, and its second side S6 is convex.

[0488] The fourth lens L4 has a positive optical power, its first side S7 is convex, and its second side S8 is concave.

[0489] The fifth lens L5 has a negative optical power, its first side S9 is concave, and its second side S10 is concave.

[0490] Among them, the first side S1 of the first lens L1 has an anamorphic curve.

[0491] The optical lens may further include a diaphragm STO, and the diaphragm STO may be disposed between the third lens L3 and the fourth lens L4.

[0492] Optionally, the optical lens may further include a filter having a first side S11 and a second side S12, and a protective glass having a first side S13 and a second side S14.

[0493] 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 coefficients k and the higher-order term coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical surfaces S1, S2, S7, and S8 of the aspherical lenses L1 and L4 that can be used in Example 26. Among them, each aspherical surface type can be defined by the formula (1) given in the above Example 1.

[0494] Table 51

[0495]

[0496] Table 52

[0497]

[0498] 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 83 lp / mm (83 line pairs / mm) exceeds 0.82. According to the above values, the optical lenses provided in Examples 25 and 26 have a high resolution ability.

[0499] Figure 40 The schematic diagram of the distortion curve of the optical lenses of Examples 25 and 26 is shown.

[0500] In summary, Examples 1 to 26 respectively satisfy the relationships shown in Table 53-1, Table 53-2, and Table 53-3 below. 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 unit of FOV is degrees (°), and the units of θ and θ2 are radians (rad).

[0501] Table 53-1

[0502]

[0503]

[0504] Table 53-2

[0505]

[0506]

[0507] Table 53-3

[0508]

[0509]

[0510] This application also provides an electronic device, which may include an optical lens according to the above embodiments of this application and an imaging element for converting the optical image formed by the optical lens into an electrical signal. The electronic device may be an independent electronic device such as a ranging camera, or an imaging module integrated on a ranging device such as a ranging device. In addition, the electronic device may also be an independent imaging device such as a vehicle-mounted camera, or an imaging module integrated on an auxiliary driving system such as an auxiliary driving system.

[0511] The above description is only a preferred embodiment of this application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above technical features, and 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 technical solutions formed by mutually replacing the above features with technical features having similar functions (but not limited to) disclosed in this 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°,5000≥ F5 / F ≥1,0.25≤(H / 2) / (F tan(θ / 2))≤0.6,0.5≤R11 / SAG1≤7.8, 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, 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, θ is the radian value corresponding to the maximum field of view angle of the optical lens, and SAG1 is the sagittal height of the first side surface of the first 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: 0.5≤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: <h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> F1 / F23<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> ≤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≤-0.085,0.003≤ 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≤ arctan(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 / 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, 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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