Optical lenses and electronic devices

Abstract

The present invention provides an optical lens and an electronic device. The optical lens includes, in order from the first side to the second side along the optical axis: a first lens with positive focal length, the first side surface of the first lens is a convex surface; a second lens; a third lens and a fourth lens with negative focal length; a fifth lens, the first side surface of the fifth lens is a convex surface; the optical lens satisfies: BFL / TTL≤0.15; 3≤F45×BFL / F≤8; 0≤F1 / F≤8; T23 / T1≤1; wherein BFL is the optical back focus of the optical lens, TTL is the total optical length of the optical lens, F45 is the combined focal length of the fourth lens and the fifth lens, F is the focal length of the optical lens, F1 is the focal length of the first lens, T23 is the air interval between the second lens and the third lens on the optical axis, and T1 is the center thickness of the first lens. The present invention solves the problem that the optical lens in the prior art has high luminous flux, short back focus, and miniaturization that are difficult to take into account.

Description

Technical Field

[0001] The present invention relates to the technical field of optical imaging equipment, and in particular to an optical lens and an electronic device. Background Art

[0002] In recent years, with the development of science and technology, the demand for optical lenses in daily life has increased, and optical lenses have been applied to more and more scenarios, especially optical lenses used for projection. Their applications in daily life have gradually diversified. For example, in the automotive field, optical lenses can not only be used in head-up displays, but also in smart headlights to better increase the interaction between people and vehicles and the needs of audio and video entertainment. Optical lenses for projection are gradually being installed.

[0003] With the development of smart headlights, in order to improve the experience of human-vehicle interaction and audio-visual entertainment, the requirements for the resolution of projection lenses are gradually increasing. Existing projection lenses have low flux and poor imaging effects in dark environments. Although the purpose of improving light efficiency can be achieved through short back focus and large aperture, as optical lenses develop towards miniaturization, it is not easy to achieve short back focus while ensuring the assembly performance of optical lenses.

[0004] In other words, the optical lens in the prior art has the problem of being difficult to achieve high luminous flux, short back focus, and miniaturization at the same time. Summary of the invention

[0005] The main purpose of the present invention is to provide an optical lens and an electronic device to solve the problem in the prior art that the optical lens has high luminous flux, short back focus and miniaturization.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, an optical lens is provided, which comprises, in order from the first side to the second side along the optical axis: a first lens, the first lens has positive optical power, and the first side surface of the first lens is a convex surface; a second lens; a third lens, the third lens has negative optical power; a fourth lens; a fifth lens, the first side surface of the fifth lens is a convex surface; the optical lens satisfies: BFL / TTL≤0.15; 3≤F45×BFL / F≤8; 0≤F1 / F≤8; T23 / T1≤1; wherein BFL is the optical back focus of the optical lens, TTL is the total optical length of the optical lens, F45 is the combined focal length of the fourth lens and the fifth lens, F is the focal length of the optical lens, F1 is the focal length of the first lens, T23 is the air interval between the second lens and the third lens on the optical axis, and T1 is the center thickness of the first lens.

[0007] Further, the second side surface of the first lens is a convex surface; or the second side surface of the first lens is a plane; or the second side surface of the first lens is a concave surface.

[0008] Further, the second lens has positive optical power, the first side surface of the second lens is convex, and the second side surface of the second lens is concave; or the second lens has positive optical power, the first side surface of the second lens is convex, and the second side surface of the second lens is a plane; or the second lens has positive optical power, the first side surface of the second lens is convex, and the second side surface of the second lens is convex; or the second lens has negative optical power, the first side surface of the second lens is convex, and the second side surface of the second lens is concave; or the second lens has negative optical power, the first side surface of the second lens is a plane, and the second side surface of the second lens is concave; or the second lens has negative optical power, the first side surface of the second lens is a concave, and the second side surface of the second lens is a concave.

[0009] Further, the first side surface of the third lens is convex, and the second side surface of the third lens is concave; or the first side surface of the third lens is a plane, and the second side surface of the third lens is concave; or the first side surface of the third lens is concave ... convex.

[0010] Further, the fourth lens has positive focal power, the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is convex; or the fourth lens has positive focal power, the first side surface of the fourth lens is a plane, and the second side surface of the fourth lens is convex; or the fourth lens has positive focal power, the first side surface of the fourth lens is concave, and the second side surface of the fourth lens is convex; or the fourth lens has negative focal power, the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is concave.

[0011] Further, the fifth lens has positive optical power, and the second side surface of the fifth lens is concave; or the fifth lens has positive optical power, and the second side surface of the fifth lens is convex; or the fifth lens has negative optical power, and the second side surface of the fifth lens is concave.

[0012] Furthermore, the optical lens satisfies at least one of the following conditional expressions: 45≤(FOV×F) / H≤65; 1≤F / H≤5; wherein FOV is the field of view of the optical lens, F is the focal length of the optical lens, and H is the image height of the optical lens.

[0013] Furthermore, the optical lens satisfies at least one of the following conditional formulas: TTL / F≤4.5; TTL / H / FOV≤0.65; 3≤TTL / H / θ≤18; TTL / DMAX≤3; wherein TTL is the total optical length of the optical lens, F is the focal length of the optical lens, H is the image height of the optical lens, FOV is the field of view of the optical lens, θ is the radian value corresponding to the field of view of the optical lens, and DMAX is the maximum aperture of the optical lens.

[0014] Furthermore, the optical lens satisfies: BFL / TL≤0.2, wherein BFL is the optical back focus of the optical lens, and TL is the distance between the first side surface of the first lens and the second side surface of the fifth lens on the optical axis.

[0015] Furthermore, the optical lens satisfies at least one of the following conditional formulas: 0.06≤D / H / FOV≤0.2; 2≤D / H / θ≤10; 0.15≤(F×θ) / D≤0.8; D / H / F≤0.3; F / ENPD≤1.5; F / ENPD / D≤0.05; 0.5≤DST / F≤2.5; wherein D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view angle of the optical lens, H is the image height of the optical lens, FOV is the field of view angle of the optical lens, θ is the radian value corresponding to the field of view angle of the optical lens, F is the focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, and DST is the aperture diameter of the optical lens.

[0016] Furthermore, the optical lens satisfies at least one of the following conditional formulas: 1≤D / D10≤5; 0.3≤D / TTL≤1; 1≤D / D7≤5; wherein 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, D10 is the maximum light-clearance aperture of the second side surface of the fifth lens corresponding to the maximum field of view of the optical lens, TTL is the total optical length of the optical lens, and D7 is the maximum light-clearance aperture of the first side surface of the fourth lens corresponding to the maximum field of view of the optical lens.

[0017] Furthermore, the optical lens satisfies at least one of the following conditional equations: -8≤F1 / F3≤0; -50≤F3 / F≤0; wherein F1 is the focal length of the first lens, F3 is the focal length of the third lens, and F is the focal length of the optical lens.

[0018] Further, the optical lens satisfies: -10≤R10 / F5≤1.5, wherein R10 is a radius of curvature of the second side surface of the fifth lens, and F5 is a focal length of the fifth lens.

[0019] Furthermore, the optical lens satisfies: T34 / TTL≤0.2, wherein T34 is an air interval between the third lens and the fourth lens on the optical axis, and TTL is a total optical length of the optical lens.

[0020] Furthermore, the optical lens satisfies at least one of the following conditional formulas: 0.5≤T5 / T4≤4.5; 0.02≤T4 / F≤0.8; wherein T5 is the center thickness of the fifth lens, T4 is the center thickness of the fourth lens, and F is the focal length of the optical lens.

[0021] Furthermore, the optical lens satisfies: -2≤R6 / R7≤8, wherein R6 is the radius of curvature of the second side surface of the third lens, and R7 is the radius of curvature of the first side surface of the fourth lens.

[0022] Further, the optical lens satisfies at least one of the following conditional formulas: 0.5≤R1 / F≤8; 0.2≤R9 / F≤5; |(|R8|-|R9|) / (|R8|+|R9|)|≤1.2; wherein R1 is the radius of curvature of the first side surface of the first lens, F is the focal length of the optical lens, R9 is the radius of curvature of the first side surface of the fifth lens, and R8 is the radius of curvature of the second side surface of the fourth lens.

[0023] Furthermore, the optical lens satisfies: 0.1≤(T1+T2) / TTL≤0.55, wherein T1 is the center thickness of the first lens, T2 is the center thickness of the second lens, and TTL is the total optical length of the optical lens.

[0024] Furthermore, the optical lens satisfies: T12 / D≤0.5, wherein T12 is the air gap between the first lens and the second lens on the optical axis, and D is the maximum light aperture of the first side surface of the first lens corresponding to the maximum field angle of the optical lens.

[0025] Further, the optical lens satisfies: 20≤arctan(1 / K(S9))≤65, wherein arctan(1 / K(S9)) is an opening angle of the first side surface of the fifth lens.

[0026] Furthermore, the optical lens satisfies at least one of the following conditional formulas: T23×BFL / F4≤2.1; T23 / F≤0.3; wherein T23 is the air space between the second lens and the third lens on the optical axis, BFL is the optical back focus of the optical lens, F4 is the focal length of the fourth lens, and F is the focal length of the optical lens.

[0027] Further, the optical lens satisfies at least one of the following conditional equations: |F4 / F|≤4.5; |F2 / F|≤18; |F5 / F|≤15; wherein F4 is the focal length of the fourth lens, F is the focal length of the optical lens, F2 is the focal length of the second lens, and F5 is the focal length of the fifth lens.

[0028] Further, the optical lens satisfies at least one of the following conditional expressions: 50≤(FOV×F) / H≤60; TTL / F≤3; TTL / H / FOV≤0.45; 5≤TTL / H / θ≤15; TTL / DMAX≤1.84; 0.2≤(F×θ) / D≤0.5; 0.09≤D / H / FOV≤0.2; 4≤D / H / θ≤9; D / H / F≤0.25; BFL / TTL≤0.13; BFL / TL≤0.15; 1.5≤F / H≤3; F / ENPD≤1.4; F / ENPD / D≤0.03; 0.8≤DST / F≤1.5; 1.5≤D / D10≤4; 1≤F1 / F≤6; -5≤F1 / F3≤-0.05; -8≤R10 / F5≤1; T23 / T1≤0.9; 0.6≤T5 / T4≤3.5; -1≤R6 / R7≤5; 0.45≤D / TTL≤0.9; 0.8≤R1 / F≤5; 0.35≤R9 / F≤1.5; 0.15≤(T1+T2) / TTL≤0.5; 0.05≤T4 / F≤0.65; T12 / D≤0.3; |(|R8|-|R9|) / (|R8|+|R9|)|≤0.8; 25≤arctan(1 / K(S9))≤60; 1.5≤D / D7≤4; -35≤F3 / F≤-0.95; -6≤F3 / F≤0; |F4 / F|≤3.5; |F2 / F|≤16; |F5 / F|≤13; 3≤F1 / F≤5; F1 / F≤2; wherein FOV is the field of view of the optical lens, F is the focal length of the optical lens, H is the image height of the optical lens, TTL is the total optical length of the optical lens, θ is the arc value corresponding to the field of view of the optical lens, DMAX is the maximum clear aperture of the optical lens, D is the maximum clear aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, BFL is the optical back focus of the optical lens, TL is the distance between the first side of the first lens and the second side of the fifth lens on the optical axis, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, D10 is the maximum clear aperture of the second side of the fifth lens corresponding to the maximum field of view of the optical lens, arctan(1 / K(S9)) is the opening angle of the first side of the fifth lens, and D7 is the maximum The maximum aperture of the first side surface of the fourth lens corresponding to the large field angle is F1, which is the focal length of the first lens; F2 is the focal length of the second lens; F3 is the focal length of the third lens; F4 is the focal length of the fourth lens; F5 is the focal length of the fifth lens; R1 is the radius of curvature of the first side surface of the first lens; R6 is the radius of curvature of the second side surface of the third lens; R7 is the radius of curvature of the first side surface of the fourth lens; R8 is the radius of curvature of the second side surface of the fourth lens; R9 is the radius of curvature of the first side surface of the fifth lens; R10 is the radius of curvature of the second side surface of the fifth lens; T1 is the center thickness of the first lens; T12 is the air gap between the first lens and the second lens on the optical axis; T1 is the center thickness of the first lens; T2 is the center thickness of the second lens; T23 is the air gap between the second lens and the third lens on the optical axis; T4 is the center thickness of the fourth lens; and T5 is the center thickness of the fifth lens.

[0029] Further, the optical lens satisfies at least one of the following conditional expressions: 52.564≤(FOV×F) / H≤58.513; 1.653≤TTL / F≤2.608; 0.143≤TTL / H / FOV≤0.238; 8.21≤TTL / H / θ≤13.631; 1.157≤TTL / DMAX≤1.645; 0.274≤(F×θ) / D≤0.317; 0.121≤D / H / FOV≤0.146; 6.953≤D / H / θ≤8.342; 0.088≤D / H / F≤0.12; 0.069≤BFL / TTL≤0.116; 0.074≤BFL / TL≤0.131; 2.106≤F / H≤2.343; 0.7≤F / ENPD≤1.392; 0.014≤F / ENPD / D≤0.029; 1.009≤DST / F≤1.398; 2.275≤D / D10≤2.788; 3.461≤F45×BFL / F≤6.217; 1.483≤F1 / F≤4.651; -3.796≤F1 / F3≤-0.113; -5.079≤R10 / F5≤0.71; 0≤T23 / T1≤0.835; 0.003≤T34 / TTL≤0.193; 0.782≤T5 / T4≤2.208; -0.487≤R6 / R7≤1.69; 0.608≤D / TTL≤0.865; 1.205≤R1 / F≤3.392; 0.478≤R9 / F≤0.901;0.216≤(T1+T2) / TTL≤0.38;0.09≤T4 / F≤0.499;0.003≤T12 / D≤0 .115;0.002≤|(|R8|-|R9|) / (|R8|+|R9|)|≤0.576;30.453≤arctan(1 / K( S9))≤55.45; 2.275≤D / D7≤2.788; 0≤T23 / F≤0.244; 0≤T23×BFL / F4≤2.032; -28.021≤F3 / F≤-0.968; 0.794≤|F4 / F|≤2.929; 1.297≤|F2 / F|≤15.501; 0.571≤|F5 / F|≤12.074; wherein FOV is the field of view of the optical lens, F is the focal length of the optical lens, H is the image height of the optical lens, TTL is the total optical length of the optical lens, θ is the arc value corresponding to the field of view of the optical lens, DMAX is the maximum aperture of the optical lens, D is the maximum aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, BFL is the optical back focus of the optical lens, TL is the distance between the first side surface of the first lens and the second side surface of the fifth lens on the optical axis, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, D10 is the maximum aperture of the second side surface of the fifth lens corresponding to the maximum field of view of the optical lens, arctan(1 / K(S9)) is the opening angle of the first side surface of the fifth lens, D7 is the maximum aperture of the first side surface of the fourth lens corresponding to the maximum field of view of the optical lens, F1 is the focal length of the first lens, and F2 is The focal length of the second lens, F3 is the focal length of the third lens, F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, F45 is the combined focal length of the fourth lens and the fifth lens, R1 is the radius of curvature of the first side surface of the first lens, R6 is the radius of curvature of the second side surface of the third lens, R7 is the radius of curvature of the first side surface of the fourth lens, R8 is the radius of curvature of the second side surface of the fourth lens, R9 is the radius of curvature of the first side surface of the fifth lens, R10 is the radius of curvature of the second side surface of the fifth lens, T1 is the center thickness of the first lens, T12 is the air interval between the first lens and the second lens on the optical axis, T1 is the center thickness of the first lens, T2 is the center thickness of the second lens, T23 is the air interval between the second lens and the third lens on the optical axis, T34 is the air interval between the third lens and the fourth lens on the optical axis, T4 is the center thickness of the fourth lens, and T5 is the center thickness of the fifth lens. .

[0030] According to another aspect of the present invention, there is provided an electronic device comprising the above-mentioned optical lens and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

[0031] The above technical solution is achieved by setting the first lens to have positive focal length, and the first side of the first lens is convex, and the second side of the first lens is convex. The first lens in the optical lens is closest to the object side, and is set to have positive focal length, and the first side of the first lens is set to a convex surface, which is conducive to the convergence of large-angle light and the collection of large-field light to enter the optical system. At the same time, the first side of the first lens is convex, which is conducive to the sliding of dust, and it is not easy for dust to accumulate on the first side of the first lens, which is conducive to stable imaging of the optical lens and at the same time, it is conducive to improving the aesthetics of the optical lens. The second side of the first lens is set to a convex surface, which can further compress the beam aperture of the large field of view received by the first side, which is conducive to increasing the amount of light passing, and then it is conducive to improving the illumination and improving the imaging ability of the optical lens in a dark environment.

[0032] Optionally, by setting the first lens to have positive focal length, and the first side of the first lens is convex, and the second side of the first lens is a plane. The first lens in the optical lens is closest to the object side, and it is set to have positive focal length, and the first side of the first lens is set to a convex surface, which is conducive to the convergence of large-angle light and the collection of large-field light into the optical system. At the same time, the first side of the first lens is convex, which is conducive to the sliding of dust, and it is not easy to accumulate dust on the first side of the first lens, which is conducive to stable imaging of the optical lens and at the same time, it is conducive to improving the aesthetics of the optical lens. Setting the second side of the first lens to a plane can achieve the purpose of smoothing the light and reduce the sensitivity of the first lens.

[0033] Optionally, by setting the first lens to have positive focal length, and the first side of the first lens is convex, and the second side of the first lens is concave. The first lens in the optical lens is closest to the object side, and is set to have positive focal length, and the first side of the first lens is set to a convex surface, which is conducive to the convergence of large-angle light and the collection of large-field light to enter the optical system. At the same time, the first side of the first lens is convex, which is conducive to the sliding of dust, and it is not easy to accumulate dust on the first side of the first lens, which is conducive to stable imaging of the optical lens and at the same time, it is conducive to improving the aesthetics of the optical lens. At the same time, the second side of the first lens is set to a concave surface, which can appropriately diverge the light converged on the first side, so that the difference between the incident angle when the light enters the first lens and the incident angle when the light enters the second lens is small, so that the entrance pupil is far away from the main surface of the image side, which is conducive to reducing the object side telecentricity.

[0034] Optionally, by setting the second lens to have positive focal power, and the first side of the second lens is convex, and the second side of the second lens is concave. The second lens has positive focal power and uses a high refractive index material, which is conducive to refracting light and achieving a large field of view. At the same time, increasing the focal length of the second lens is conducive to a smooth transition of light to the rear, thereby reducing the sensitivity of the second lens. Setting the first side of the second lens to a convex surface is conducive to receiving the light passing through the first lens for refracting, and working together with the first lens to achieve a large field of view. Setting the second side of the second lens to a concave surface is conducive to a smooth transition of light passing through the second lens and reducing sensitivity.

[0035] Optionally, by setting the second lens to have positive focal power, and the first side of the second lens is convex, and the second side of the second lens is flat. The second lens has positive focal power and uses a high refractive index material, which is conducive to refracting light and achieving a large field of view. At the same time, increasing the focal length of the second lens is conducive to a smooth transition of light to the rear, reducing the sensitivity of the second lens. Setting the first side of the second lens to a convex surface is conducive to receiving the light passing through the first lens for refracting, and working together with the first lens to achieve a large field of view. Setting the second side of the second lens to a plane is conducive to a smooth transition of light and is conducive to improving the processability of the second lens.

[0036] Optionally, by setting the second lens to have positive focal power, and the first side of the second lens is convex, the second side of the second lens is convex. The second lens has positive focal power and uses a high refractive index material, which is conducive to refracting light and achieving a large field of view. At the same time, increasing the focal length of the second lens is conducive to a smooth transition of light to the rear, reducing the sensitivity of the second lens. Setting the first side of the second lens to a convex surface is conducive to receiving the light passing through the first lens for refracting, and working together with the first lens to achieve a large field of view. Setting the second side of the second lens to a convex surface can further compress the beam aperture, which is conducive to increasing the amount of light passing through, improving the illumination, and thereby improving the imaging clarity of the optical lens in a dark environment.

[0037] Optionally, by setting the second lens to have a negative optical power, the first side surface of the second lens is a convex surface, and the second side surface of the second lens is a concave surface. Setting the second lens to have a negative optical power can diverge the light converged by the first lens, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further allowing the light to transition smoothly. Setting the first side surface of the second lens to be a convex surface, and cooperating with the first lens, can collect and converge the edge field of view light, and setting the second side surface of the second lens to be a concave surface can adjust the divergence angle of the light, which is conducive to smoothing the light trend and reducing the sensitivity of the rear optical system.

[0038] Optionally, by setting the second lens to have a negative optical power, and the first side of the second lens is a concave surface, and the second side of the second lens is a plane. Setting the second lens to have a negative optical power can diverge the light converged by the first lens, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further allowing the light to transition smoothly. Setting the first side of the second lens to be a plane is conducive to a smooth transition of light while reducing the difficulty of processing and assembling the second lens. Setting the second side of the second lens to be a concave surface can adjust the divergence angle of the light, which is conducive to smoothing the light trend and reducing the sensitivity of the rear optical system.

[0039] Optionally, by setting the second lens to have a negative optical power, and the first side surface of the second lens is a concave surface, and the second side surface of the second lens is a concave surface. Setting the second lens to have a negative optical power can diverge the light converged by the first lens, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further allowing the light to transition smoothly. Setting both the first side surface and the second side surface of the second lens to be concave is conducive to a smooth transition of light, and at the same time is conducive to reducing the degree of deflection, so that the optical path difference between the edge field of view and the central field of view is rapidly increased, which is conducive to correcting the aberration of the edge field of view and improving the image quality.

[0040] Optionally, by setting the third lens to have negative optical power, and the first side of the third lens is convex, and the second side of the third lens is concave. The third lens is set to have negative optical power to further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. Setting the first side of the third lens to be convex can make the light entering the third lens appropriately converge, which is conducive to a smooth transition of light. Setting the second side of the third lens to be concave can properly diverge the light, balance the aberration, and improve the imaging quality.

[0041] Optionally, by setting the third lens to have negative optical power, and the first side of the third lens is a plane, and the second side of the third lens is a concave surface. The third lens is set to have negative optical power to further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. Setting the first side of the third lens as a plane is conducive to smoothly receiving the light, and at the same time helps to reduce the difficulty of processing and assembling the third lens. Setting the second side of the third lens as a concave surface can appropriately diverge the light, balance the aberration, and improve the imaging quality.

[0042] Optionally, by setting the third lens to have negative optical power, and the first side of the third lens is concave, and the second side of the third lens is concave. Setting the third lens to have negative optical power can further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. Setting the first side of the third lens to be concave is conducive to receiving the light with low deflection trend through the second lens and reducing chromatic aberration. Setting the second side of the third lens to be concave can appropriately diverge the light, balance the aberration, and improve the imaging quality.

[0043] Optionally, by setting the third lens to have negative optical power, and the first side of the third lens is concave, and the second side of the third lens is convex. Setting the third lens to have negative optical power can further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. Setting the first side of the third lens to be concave is conducive to receiving the light with low deflection trend through the second lens and reducing chromatic aberration. Setting the second side of the third lens to be convex can slow down the light trend through the third lens while correcting the aberration, which is conducive to achieving a small aperture.

[0044] Optionally, by setting the fourth lens to have positive focal power, the first side of the fourth lens is convex, and the second side of the fourth lens is convex. Setting the fourth lens to have positive focal power and forming a positive and negative focal power combination with the third lens can balance the chromatic aberration of the entire optical system, while also allowing the light converged by the aperture to smoothly transition to the rear lens. At the same time, the positive focal power can also reduce the aperture of the rear optical system. The first side of the fourth lens is set to a convex surface, and due to the correction of marginal light, the ability of the fifth lens to correct aberrations is slowed down. The second side of the fourth lens is set to a convex surface, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference and facilitating the realization of a short back focus.

[0045] Optionally, by setting the fourth lens to have positive focal power, the first side of the fourth lens is a plane, and the second side of the fourth lens is a convex surface. Setting the fourth lens to have positive focal power and forming a positive and negative focal power combination with the third lens can balance the chromatic aberration of the entire optical system, while also allowing the light converged by the aperture to smoothly transition to the rear lens. At the same time, the positive focal power can also reduce the aperture of the rear optical system. The first side of the fourth lens is set to a plane, which improves the processability of the lens while smoothing the light trend and reducing the difficulty of assembly. The second side of the fourth lens is set to a convex surface, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference and facilitating the realization of a short back focus.

[0046] Optionally, by setting the fourth lens to have positive focal power, the first side of the fourth lens is concave, and the second side of the fourth lens is convex. Setting the fourth lens to have positive focal power and forming a positive and negative focal power combination with the third lens can balance the chromatic aberration of the entire optical system, while also allowing the light converged by the aperture to smoothly transition to the rear lens. At the same time, the positive focal power can also reduce the aperture of the rear optical system. The first side of the fourth lens is set to a concave surface, which is conducive to receiving the light passing through the third lens, facilitating the smooth transition of the light to the rear, and reducing the sensitivity of the optical system. The second side of the fourth lens is set to a convex surface, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference and facilitating the realization of a short back focus.

[0047] Optionally, by setting the fourth lens to have a negative optical power, the first side surface of the fourth lens is a convex surface, and the second side surface of the fourth lens is a concave surface. Setting the fourth lens to have a negative optical power and collocating it with the third lens having a negative optical power is conducive to a smooth transition of light, and collocating it with the fifth lens having a positive optical power, so that the third lens, the fourth lens and the fifth lens can jointly correct aberrations while facilitating the realization of a short back focus. Setting the first side surface of the fourth lens to be a convex surface and the second side surface to be a concave surface can slow down the divergence trend of light and ensure the aperture of light entering the fifth lens.

[0048] Optionally, by setting the fifth lens to have positive power, the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is concave. The fifth lens is set to have positive power, and the lens shape is relatively gentle, which is conducive to the smooth transition of light, so that the light can enter the rear smoothly, which is conducive to improving the astigmatism and field curvature of the imaging, and improving the resolution ability of the optical lens. The first side surface of the fifth lens is set to be convex, and the second side surface is set to be concave, so that the light passes through the fifth lens to reach the imaging surface with a longer optical path, which is conducive to achieving a small CRA.

[0049] Optionally, the optical lens satisfies: BFL / TTL≤0.15; 3≤F45×BFL / F≤8; 0≤F1 / F≤8; T23 / T1≤1; wherein BFL is the optical back focus of the optical lens, TTL is the total optical length of the optical lens, F45 is the combined focal length of the fourth lens and the fifth lens, F is the focal length of the optical lens, F1 is the focal length of the first lens, T23 is the air interval between the second lens and the third lens on the optical axis, and T1 is the center thickness of the first lens. By controlling the relationship between the combined focal length of the fourth lens and the fifth lens and the focal length of the optical lens, it is convenient to control the control ability of the rear optical system on the light, which is conducive to achieving a short back focus, and at the same time, the relationship between the back focus of the optical lens and the total optical length of the optical lens is controlled, which is conducive to the miniaturization and high light efficiency of the optical lens while achieving a short back focus. The focal length of the first lens is relatively large, which is conducive to adjusting the deflection of the central light and the edge light of each field of view, so as to collect light with a large field of view angle and improve the system luminous flux. At the same time, controlling the center thickness of the first lens can reduce ghost images, but its ability to refract light is weak. By shortening the air gap between the second lens and the third lens, the ability to refract light is compensated, achieving weak ghost images while ensuring a large field of view.

[0050] The optical lens of the present application can also collect large-angle light to maintain high light flux by controlling the large aperture of the first lens, and at the same time control the center thickness of the fourth lens, the center thickness of the fifth lens, and the shape of the fifth lens, so that the rear group of light shrinks the distance while ensuring the resolution, and achieves short back focus. For example, the maximum aperture D of the first side of the first lens corresponding to the maximum field angle of the optical lens, the maximum aperture D10 of the second side of the fifth lens corresponding to the maximum field angle of the optical lens, the total optical length TTL of the optical lens, the center thickness T5 of the fifth lens, the center thickness T4 of the fourth lens, the radius of curvature R10 of the second side of the fifth lens, and the focal length F5 of the fifth lens satisfy the following conditions: 1≤D / D10≤5, 0.3≤D / TTL≤1, -10≤R10 / F5≤1.5, 0.5≤T5 / T4≤4.5, so that the light flux can be increased and the back focus can be achieved at the same time.

[0051] The optical lens of the present application can also control the focal length of the third lens, and at the same time coordinate the distance between the third lens and the fourth lens, and the curvature control of the third lens and the fourth lens so that the light diverged by the third lens is smoothly received by the fourth lens, and the focal length of the fourth lens is adjusted to correct the aberration, so as to improve the resolution. For example, the focal length F3 of the third lens, the focal length F of the optical lens, the air interval T23 between the second lens and the third lens on the optical axis, the optical back focus BFL of the optical lens, the focal length F4 of the fourth lens, the curvature radius R6 of the second side of the third lens, the curvature radius R7 of the first side of the fourth lens, the air interval T34 between the third lens and the fourth lens on the optical axis, and the total optical length TTL of the optical lens are controlled to meet the following conditions: -50≤F3 / F≤0, T23×BFL / F4≤2.1, -2≤R6 / R7≤8, T34 / TTL≤0.2. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0053] Figures 1 to 46 sectional views of optical lenses according to Embodiments 1 to 46 of the present invention are respectively shown;

[0054] Fig.47 The modulation function diagram of the optical lens of the third embodiment of the present invention is shown. DETAILED DESCRIPTION

[0055] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0056] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0057] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0058] It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0059] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of illustration. 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 for illustration only and are not drawn strictly to scale.

[0060] 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 close to the object side is called the first side of the lens, and the surface of each lens close to the image side is called the second side of the lens. The judgment of the surface shape in the paraxial region can be based on the judgment method of the general knowledge in this field, and the positive and negative R value (R refers to the radius of curvature of the paraxial region, usually refers to the R value on the lens database (lens data) in the optical software) is used to judge the concave and convex. For the first side, when the R value is positive, it is judged as a convex surface, and when the R value is negative, it is judged as a concave surface; for the second side, when the R value is positive, it is judged as a concave surface, and when the R value is negative, it is judged as a convex surface.

[0061] This application generally protects an ordinary optical lens. In the accompanying drawings, the left side is the object side and the right side is the image side, that is, the first side is the object side and the second side is the image side.

[0062] In an exemplary embodiment, the optical lens provided by the present application can be used as, for example, a vehicle-mounted lens. Light from the object side can form an image on the image side.

[0063] When the optical lens in the present application is applied to a projection lens or a radar transmitting lens, the left side is the imaging side and the right side is the image source side. 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 transmitting end lens. In this case, the image side of the optical lens can be the image source side, and the object side can be the imaging side. Light from the image source side can be imaged on the imaging side. The imaging surface of the optical lens is the image source surface.

[0064] In order to solve the problem in the prior art that it is difficult to achieve high luminous flux, short back focus and miniaturization in optical lenses, the present invention provides an optical lens and an electronic device.

[0065] In some alternative embodiments, see Figures 1 to 46 The optical lens comprises five lenses with optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The five lenses are arranged in sequence from the first side to the second side along the optical axis.

[0066] In some optional embodiments, the first lens is configured to have positive focal length, and the first side of the first lens is convex, and the second side of the first lens is convex. The first lens in the optical lens is closest to the object side, and it is configured to have positive focal length, and the first side of the first lens is configured to be convex, which is conducive to the convergence of large-angle light and the collection of large-field light to enter the optical system. At the same time, the first side of the first lens is convex, which is conducive to the sliding of dust, and it is not easy to accumulate dust on the first side of the first lens, which is conducive to stable imaging of the optical lens and at the same time, it is conducive to improving the aesthetics of the optical lens. The second side of the first lens is configured to be convex, which can further compress the beam aperture of the large field of view received by the first side, which is conducive to increasing the amount of light passing, and then it is conducive to improving the illumination and improving the imaging ability of the optical lens in a dark environment.

[0067] In some optional embodiments, the first lens is configured to have positive focal length, and the first side of the first lens is a convex surface, and the second side of the first lens is a plane. The first lens in the optical lens is closest to the object side, and it is configured to have positive focal length, and the first side of the first lens is configured to be a convex surface, which is conducive to the convergence of large-angle light and the collection of large-field light into the optical system. At the same time, the first side of the first lens is a convex surface, which is conducive to the sliding of dust, and it is not easy to accumulate dust on the first side of the first lens, which is conducive to stable imaging of the optical lens and at the same time, it is conducive to improving the aesthetics of the optical lens. Setting the second side of the first lens as a plane can achieve the purpose of smoothing the light and reduce the sensitivity of the first lens.

[0068] In some optional embodiments, the first lens is configured to have positive focal length, and the first side of the first lens is convex, and the second side of the first lens is concave. The first lens in the optical lens is closest to the object side, and it is configured to have positive focal length, and the first side of the first lens is configured to be convex, which is conducive to the convergence of large-angle light and the collection of large-field light to enter the optical system. At the same time, the first side of the first lens is convex, which is conducive to the sliding of dust, and it is not easy to accumulate dust on the first side of the first lens, which is conducive to stable imaging of the optical lens and at the same time is conducive to improving the aesthetics of the optical lens. At the same time, the second side of the first lens is configured to be concave, which can appropriately diverge the light converged on the first side, so that the difference between the incident angle when the light enters the first lens and the incident angle when the light enters the second lens is small, so that the entrance pupil is far away from the main surface of the image side, which is conducive to reducing the object side telecentricity.

[0069] In some optional embodiments, the second lens is configured to have positive focal power, and the first side surface of the second lens is convex, and the second side surface of the second lens is concave. The second lens has positive focal power and uses a high refractive index material, which is conducive to refracting light and achieving a large field of view. At the same time, increasing the focal length of the second lens is conducive to a smooth transition of light to the rear, thereby reducing the sensitivity of the second lens. Setting the first side surface of the second lens as a convex surface is conducive to receiving the light passing through the first lens for refracting, and working together with the first lens to achieve a large field of view. Setting the second side surface of the second lens as a concave surface is conducive to a smooth transition of light passing through the second lens and reducing sensitivity.

[0070] In some optional embodiments, the second lens is configured to have positive focal power, and the first side of the second lens is a convex surface, and the second side of the second lens is a plane. The second lens has positive focal power and uses a high refractive index material, which is conducive to refracting light and achieving a large field of view. At the same time, increasing the focal length of the second lens is conducive to a smooth transition of light to the rear, reducing the sensitivity of the second lens. Setting the first side of the second lens to a convex surface is conducive to receiving the light passing through the first lens for refracting, and working together with the first lens to achieve a large field of view. Setting the second side of the second lens to a plane is conducive to a smooth transition of light and is conducive to improving the processability of the second lens.

[0071] In some optional embodiments, the second lens is configured to have positive focal power, and the first side of the second lens is a convex surface, and the second side of the second lens is a convex surface. The second lens has positive focal power and uses a high refractive index material, which is conducive to refracting light and achieving a large field of view. At the same time, increasing the focal length of the second lens is conducive to a smooth transition of light to the rear and reducing the sensitivity of the second lens. Setting the first side of the second lens as a convex surface is conducive to receiving the light passing through the first lens for refracting, and working together with the first lens to achieve a large field of view. Setting the second side of the second lens as a convex surface can further compress the beam aperture, which is conducive to increasing the amount of light passing through, improving the illumination, and thereby improving the imaging clarity of the optical lens in a dark environment.

[0072] In some optional embodiments, the second lens is configured to have a negative optical power, the first side surface of the second lens is a convex surface, and the second side surface of the second lens is a concave surface. By configuring the second lens to have a negative optical power, the light converged by the first lens can be diverged, the light deflection angle can be adjusted, the chromatic aberration can be reduced, and the diverged light can smoothly enter the rear optical system, further making the light transition smoothly. By configuring the first side surface of the second lens to be a convex surface, and cooperating with the first lens, the light at the edge of the field of view can be collected and converged, and by configuring the second side surface of the second lens to be a concave surface, the divergence angle of the light can be adjusted, which is conducive to smoothing the light trend and reducing the sensitivity of the rear optical system.

[0073] In some optional embodiments, the second lens is configured to have a negative optical power, and the first side of the second lens is a concave surface, and the second side of the second lens is a plane. By configuring the second lens to have a negative optical power, the light converged by the first lens can be diverged, the light deflection angle can be adjusted, the chromatic aberration can be reduced, and the diverged light can smoothly enter the rear optical system, further making the light transition smoothly. And configuring the first side of the second lens to be a plane is conducive to a smooth transition of light while reducing the difficulty of processing and assembling the second lens. By configuring the second side of the second lens to be a concave surface, the divergence angle of the light can be adjusted, which is conducive to smoothing the light trend and reducing the sensitivity of the rear optical system.

[0074] In some optional embodiments, the second lens is configured to have a negative optical power, and the first side surface of the second lens is a concave surface, and the second side surface of the second lens is a concave surface. The second lens is configured to have a negative optical power, so that the light converged by the first lens can be diverged, the light deflection angle can be adjusted, the chromatic aberration can be reduced, and the diverged light can smoothly enter the rear optical system, further making the light transition smoothly. Setting the first side surface and the second side surface of the second lens as concave surfaces is conducive to the smooth transition of light, and at the same time is conducive to reducing the degree of deflection, so that the optical path difference between the edge field of view and the central field of view light increases rapidly, which is conducive to correcting the aberration of the edge field of view and improving the image quality.

[0075] In some optional embodiments, the third lens is configured to have a negative optical power, and the first side of the third lens is a convex surface, and the second side of the third lens is a concave surface. The third lens is configured to have a negative optical power to further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. Setting the first side of the third lens to a convex surface can allow the light entering the third lens to converge appropriately, which is conducive to a smooth transition of light. Setting the second side of the third lens to a concave surface can properly diverge the light, balance the aberration, and improve the imaging quality.

[0076] In some optional embodiments, the third lens is configured to have a negative optical power, and the first side of the third lens is a plane, and the second side of the third lens is a concave surface. The third lens is configured to have a negative optical power to further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. Setting the first side of the third lens as a plane is conducive to smoothly receiving the light, and is also conducive to reducing the difficulty of processing and assembling the third lens. Setting the second side of the third lens as a concave surface can appropriately diverge the light, balance the aberration, and improve the imaging quality.

[0077] In some optional embodiments, the third lens is configured to have a negative optical power, and the first side of the third lens is a concave surface, and the second side of the third lens is a concave surface. The third lens is configured to have a negative optical power to further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. Setting the first side of the third lens to a concave surface is conducive to receiving the light with a low deflection trend through the second lens and reducing chromatic aberration. Setting the second side of the third lens to a concave surface can appropriately diverge the light, balance the aberration, and improve the imaging quality.

[0078] In some optional embodiments, the third lens is configured to have a negative optical power, and the first side surface of the third lens is a concave surface, and the second side surface of the third lens is a convex surface. The third lens is configured to have a negative optical power to further diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. The first side surface of the third lens is configured to be a concave surface, which is conducive to receiving the light with a low deflection trend through the second lens and reducing chromatic aberration. The second side surface of the third lens is configured to be a convex surface, which can slow down the light trend through the third lens while correcting the aberration, and is conducive to achieving a small aperture.

[0079] In some optional embodiments, the fourth lens is configured to have positive optical power, the first side of the fourth lens is convex, and the second side of the fourth lens is convex. The fourth lens is configured to have positive optical power, and forms a positive and negative optical power combination with the third lens, which can balance the chromatic aberration of the entire optical system, and also make the light converged by the aperture smoothly transition to the rear lens. At the same time, the positive optical power can also reduce the aperture of the rear optical system. The first side of the fourth lens is configured to be a convex surface, and due to the correction of marginal light, the ability of the fifth lens to correct aberration is slowed down. The second side of the fourth lens is configured to be a convex surface, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference and facilitating the realization of a short back focus.

[0080] In some optional embodiments, the fourth lens is configured to have positive focal power, the first side of the fourth lens is a plane, and the second side of the fourth lens is a convex surface. The fourth lens is configured to have positive focal power, and forms a positive and negative focal power combination with the third lens, which can balance the chromatic aberration of the entire optical system, and also allows the light converged by the aperture to smoothly transition to the rear lens. At the same time, the positive focal power can also reduce the aperture of the rear optical system. The first side of the fourth lens is configured to be a plane, which improves the processability of the lens while smoothing the light trend and reducing the difficulty of assembly. The second side of the fourth lens is configured to be a convex surface, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference and facilitating the realization of a short back focus.

[0081] In some optional embodiments, the fourth lens is configured to have positive focal power, the first side of the fourth lens is concave, and the second side of the fourth lens is convex. The fourth lens is configured to have positive focal power, and forms a positive and negative focal power combination with the third lens, which can balance the chromatic aberration of the entire optical system, and also allows the light converged by the aperture to smoothly transition to the rear lens. At the same time, the positive focal power can also reduce the aperture of the rear optical system. The first side of the fourth lens is configured to be concave, which is conducive to receiving the light passing through the third lens, facilitating the smooth transition of the light to the rear, and reducing the sensitivity of the optical system. The second side of the fourth lens is configured to be convex, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference, and facilitating the realization of a short back focus.

[0082] In some optional embodiments, the fourth lens is configured to have a negative optical power, the first side surface of the fourth lens is a convex surface, and the second side surface of the fourth lens is a concave surface. The fourth lens is configured to have a negative optical power, and is matched with the third lens having a negative optical power, which is conducive to a smooth transition of light. At the same time, it is matched with the fifth lens having a positive optical power, so that the third lens, the fourth lens, and the fifth lens can jointly correct aberrations while being conducive to achieving a short back focus. The first side surface of the fourth lens is configured to be a convex surface, and the second side surface is configured to be a concave surface, which slows down the divergence trend of light and ensures the aperture of light entering the fifth lens.

[0083] In some optional embodiments, the fifth lens is configured to have positive optical power, the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is concave. The fifth lens is configured to have positive optical power, and the lens shape is relatively flat, which is conducive to the smooth transition of light trends, so that the light can smoothly enter the rear, which is conducive to improving the astigmatism and field curvature of the imaging, and improving the resolution of the optical lens. The first side surface of the fifth lens is configured to be convex, and the second side surface is configured to be concave, so that the light has a longer optical path when passing through the fifth lens to reach the imaging surface, which is conducive to achieving a small CRA.

[0084] In some optional embodiments, the optical lens satisfies: BFL / TTL≤0.15; 3≤F45×BFL / F≤8; 0≤F1 / F≤8; T23 / T1≤1; wherein BFL is the optical back focus of the optical lens, TTL is the total optical length of the optical lens, F45 is the combined focal length of the fourth lens and the fifth lens, F is the focal length of the optical lens, F1 is the focal length of the first lens, T23 is the air interval between the second lens and the third lens on the optical axis, and T1 is the center thickness of the first lens. By controlling the relationship between the combined focal length of the fourth lens and the fifth lens and the focal length of the optical lens, it is convenient to control the control ability of the rear optical system on the light, which is conducive to achieving a short back focus, and at the same time, controlling the relationship between the back focus of the optical lens and the total optical length of the optical lens, while achieving a short back focus, it is conducive to the miniaturization and high light efficiency of the optical lens. The focal length of the first lens is relatively large, which is conducive to adjusting the deflection of the central light and the edge light of each field of view, facilitating the collection of light with a large field of view angle and improving the system luminous flux. At the same time, controlling the center thickness of the first lens can reduce ghost images, but its ability to refract light is weak. By shortening the air gap between the second lens and the third lens, the ability to refract light is compensated, achieving weak ghost images while ensuring a large field of view.

[0085] Preferably, the optical lens can further satisfy: BFL / TTL≤0.13, which is conducive to further achieving short back focus. The optical lens can further satisfy: 1≤F1 / F≤6, which is conducive to further achieving a large field of view. The optical lens can further satisfy: T23 / T1≤0.9, which is conducive to further reducing ghost images. More preferably, the optical lens can further satisfy: 0.069≤BFL / TTL≤0.116, which is conducive to further achieving short back focus. More preferably, the optical lens can further satisfy: 1.483≤F1 / F≤4.651, which is conducive to further achieving a large field of view. More preferably, the optical lens can further satisfy: 0≤T23 / T1≤0.835, which is conducive to further reducing ghost images. More preferably, the optical lens can further satisfy: 3.461≤F45×BFL / F≤6.217; which is conducive to further achieving short back focus.

[0086] In some optional embodiments, the first lens has positive optical power, and the first side surface of the first lens is convex, the second lens has positive optical power, and the first side surface of the second lens is convex; the third lens has negative optical power, the fourth lens has positive optical power, and the second side surface of the fourth lens is convex; the fifth lens has positive optical power, the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is concave.

[0087] The first lens in the optical lens is closest to the object side, and it is set to have a positive focal length, and the first side of the first lens is set to a convex surface, which is conducive to the convergence of large-angle light and the collection of large-field light to enter the optical system. At the same time, the first side of the first lens is a convex surface, which is conducive to the sliding of dust, and it is not easy to accumulate dust on the first side of the first lens, which is conducive to stable imaging of the optical lens and improving the aesthetics of the optical lens. At the same time, it is matched with a second lens with a positive focal length, which is conducive to turning light, and then to achieving a large field of view, and at the same time, it is conducive to smoothing the light trend and reducing the sensitivity of the lens. At the same time, the first side of the second lens is set to a convex surface, which is conducive to receiving the light passing through the first lens for turning, and working together with the first lens to achieve a large field of view. The third lens is set to a negative focal length to diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the divergent light to smoothly enter the rear optical system, further making the light trend smooth, which is conducive to improving the imaging quality. The fourth lens is set to have positive focal power, which forms a positive and negative focal power combination with the third lens, which can balance the chromatic aberration of the entire optical system, and also allows the light converged by the aperture to smoothly transition to the rear lens. At the same time, the positive focal power can also reduce the aperture of the rear optical system. The fifth lens is set to have positive focal power, and the lens shape is relatively flat, which is conducive to the smooth transition of the light trend, allowing the light to enter the rear smoothly, which is conducive to improving the astigmatism and field curvature of the imaging, and improving the resolution ability of the optical lens. The second side of the fourth lens is set to a convex surface, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference and achieving a short back focus. The first side of the fifth lens is set to a convex surface, and the second side is set to a concave surface, so that the light has a longer optical path when it passes through the fifth lens to reach the imaging surface, which is conducive to achieving a small CRA.

[0088] In some optional embodiments, the optical lens satisfies: 3≤F1 / F≤5; wherein F is the focal length of the optical lens, and F1 is the focal length of the first lens. Limiting F1 / F within the range of 3 to 5 to ensure that the focal length of the first lens is within a reasonable range is conducive to adjusting the deflection of the central light and the edge light of each field of view, facilitating the collection of light with a large field of view angle, and improving the system luminous flux. Although limiting F1 / F within the range of 3 to 5 can achieve the purpose of collecting light with a large field of view and improving the luminous flux, it is necessary to use a second lens with positive optical power and a fifth lens with positive optical power to share the aberration caused by the correction of the light with a large field of view and improve the resolution of the optical lens.

[0089] The optical lens simultaneously satisfies: the first lens has positive focal power, and the first side surface of the first lens is convex, the second lens has positive focal power, and the first side surface of the second lens is convex; the third lens has negative focal power, the fourth lens has positive focal power, and the second side surface of the fourth lens is convex; the fifth lens has positive focal power, the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is concave. When the optical lens satisfies: 3≤F1 / F≤5, the resolution of the optical lens can be further improved.

[0090] In some optional embodiments, the first lens has positive optical power, the first side surface of the first lens is convex, and the second side surface of the first lens is convex; the third lens has negative optical power, and the second side surface of the third lens is concave; the fourth lens has positive optical power, the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is convex; the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is concave.

[0091] The first lens in the optical lens is closest to the object side, and is set to have a positive focal length, and the first side of the first lens is set to a convex surface, which is conducive to the convergence of large-angle light and the collection of large-field light to enter the optical system. At the same time, the first side of the first lens is a convex surface, which is conducive to the sliding of dust, and it is not easy to accumulate dust on the first side of the first lens, which is conducive to stable imaging of the optical lens and at the same time, it is conducive to improving the aesthetics of the optical lens. The second side of the first lens is set to a convex surface, which can further compress the beam aperture of the large field of view received by the first side, which is conducive to increasing the amount of light passing, and then it is conducive to improving the illumination and improving the imaging ability of the optical lens in a dark environment. The third lens is set to a negative focal length to diverge the light, adjust the light deflection angle, reduce chromatic aberration, and allow the diverged light to smoothly enter the rear optical system, further stabilize the light trend, and help improve the imaging quality. The second side of the third lens is set to a concave surface, which can appropriately diverge the light, balance the aberration, and improve the imaging quality. The fourth lens is set to have positive focal power, which forms a positive and negative focal power combination with the third lens, which can balance the chromatic aberration of the entire optical system, and also make the light converged by the aperture smoothly transition to the rear lens. At the same time, the positive focal power can also reduce the aperture of the rear optical system. The second side of the fourth lens is set to a convex surface, which is conducive to quickly deflecting the divergent light passing through the third lens, correcting the optical path difference and achieving a short back focus. The first side of the fifth lens is set to a convex surface, and the second side is set to a concave surface, so that the light passing through the fifth lens to reach the imaging surface has a longer optical path, which is conducive to achieving a small CRA.

[0092] In some optional embodiments, the optical lens satisfies: F1 / F≤2; wherein F is the focal length of the optical lens, and F1 is the focal length of the first lens. By limiting the optical F1 / F to a range of less than or equal to 2, the focal length of the first lens is relatively small, which can ensure the collection of light with a large field angle and improve the system luminous flux while allowing greater design freedom for the second lens and the fifth lens. Therefore, the optical power of the second lens and the fifth lens can be positive or negative, which can correct aberrations while improving the luminous flux and improve the resolution.

[0093] The optical lens satisfies the following conditions at the same time: the first lens has positive focal power, the first side surface of the first lens is convex, and the second side surface of the first lens is convex; the third lens has negative focal power, and the second side surface of the third lens is concave; the fourth lens has positive focal power, the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is convex; the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is concave. When F1 / F≤2, the resolution of the optical lens can be further improved.

[0094] In some optional embodiments, the optical lens satisfies: 45≤(FOV×F) / H≤65; wherein FOV is the field of view of the optical lens, F is the focal length of the optical lens, and H is the image height of the optical lens. By controlling (FOV×F) / H within a reasonable range, it is beneficial for the optical lens to simultaneously meet the telephoto performance while improving the field of view of the optical lens, so as to improve the luminous flux of the optical lens, and to help the optical lens have good imaging capabilities in dark environments. In addition, it can also help to improve the central resolution of the optical lens. Preferably, the optical lens can further satisfy 50≤(FOV×F) / H≤60, so as to help the optical lens further improve the field of view angle and achieve a large field of view. More preferably, the optical lens can further satisfy: 52.564≤(FOV×F) / H≤58.513, so as to help the optical lens further improve the field of view angle and achieve a large field of view.

[0095] In some optional embodiments, the optical lens satisfies: 1≤F / H≤5; wherein F is the focal length of the optical lens, and H is the image height of the optical lens. By controlling the ratio of the focal length of the optical lens to the image height of the optical lens within a reasonable range, it is beneficial to control the focal length and image height of the optical lens, and to improve the resolution of the optical lens. Preferably, the optical lens can further satisfy 1.5≤F / H≤3, so as to further improve the resolution of the optical lens. More preferably, the optical lens can further satisfy: 2.106≤F / H≤2.343, so as to further improve the resolution of the optical lens.

[0096] In some optional embodiments, the optical lens satisfies: TTL / F≤4.5; wherein TTL is the total optical length of the optical lens, and F is the focal length of the optical lens. By controlling the ratio of the total optical length to the focal length of the optical lens, it is beneficial to reduce the total optical length of the optical lens, which is beneficial to the miniaturization of the optical lens, especially at the same focal length, the total optical length of the optical lens in this embodiment is smaller. Preferably, the optical lens can further satisfy: TTL / F≤3, which is beneficial to reduce the total optical length and realize the miniaturization of the optical lens. More preferably, the optical lens can further satisfy: 1.653≤TTL / F≤2.608, which is beneficial to further reduce the size of the optical lens.

[0097] In some optional embodiments, the optical lens satisfies: TTL / H / FOV≤0.65; wherein TTL is the total optical length of the optical lens, H is the image height of the optical lens, and FOV is the field angle of the optical lens. By controlling the relationship between the total optical length, image height, and field angle of the optical lens, it is beneficial to reduce the total optical length of the optical lens while ensuring the field angle of the optical lens, which is beneficial to miniaturization of the optical lens. Preferably, the optical lens can further satisfy: TTL / H / FOV≤0.45, which is beneficial to reducing the total optical length and miniaturization of the optical lens. More preferably, the optical lens can further satisfy: 0.143≤TTL / H / FOV≤0.238, which is beneficial to further reduce the size of the optical lens.

[0098] In some optional embodiments, the optical lens satisfies: 3≤TTL / H / θ≤18; wherein TTL is the total optical length of the optical lens, H is the image height of the optical lens, and θ is the radian value corresponding to the field angle of the optical lens. By controlling the total optical length, image height, and radian value corresponding to the field angle of the optical lens, it is beneficial to reduce the total optical length while ensuring the image height of the optical lens, which is beneficial to miniaturization of the optical lens. Preferably, the optical lens can further satisfy: 5≤TTL / H / θ≤15, which is beneficial to reducing the total optical length and miniaturization of the optical lens. More preferably, the optical lens can further satisfy: 8.21≤TTL / H / θ≤13.631, which is beneficial to further reduce the size of the optical lens.

[0099] In some optional embodiments, the optical lens satisfies: TTL / DMAX≤3; wherein TTL is the total optical length of the optical lens, and DMAX is the maximum light clearance aperture of the optical lens. By controlling the ratio of the total optical length of the optical lens to the maximum light clearance aperture, it is beneficial to reduce the total optical length of the optical lens while ensuring that the maximum light clearance aperture of the optical lens is within a reasonable range, so as to ensure the light throughput of the optical lens, so that the optical lens can achieve miniaturization while taking into account high light throughput. Preferably, the optical lens can further satisfy: TTL / DMAX≤1.84, which is beneficial for the optical lens to achieve miniaturization while meeting high light throughput. More preferably, the optical lens can further satisfy: 1.157≤TTL / DMAX≤1.645, which is beneficial for the optical lens to achieve miniaturization while meeting high light throughput.

[0100] In some optional embodiments, the optical lens satisfies: BFL / TL≤0.2, wherein BFL is the optical back focus of the optical lens, and TL is the distance between the first side surface of the first lens and the second side surface of the fifth lens on the optical axis. By controlling the optical back focus of the optical lens and the ratio of the distance between the first side surface of the first lens and the second side surface of the fifth lens on the optical axis, the requirement of short back focus of the optical lens is met while achieving high light efficiency. Preferably, the optical lens can further satisfy: BFL / TL≤0.15, which is beneficial for the optical lens to further achieve short back focus. More preferably, the optical lens can further satisfy: 0.074≤BFL / TL≤0.131, which is beneficial for the optical lens to further achieve short back focus.

[0101] In some optional embodiments, the optical lens satisfies: 0.06≤D / H / FOV≤0.2; wherein D is the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens, H is the image height of the optical lens, and FOV is the field of view of the optical lens. By controlling the relationship between the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens, the image height and the field of view, the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens can be appropriately increased while ensuring the image height, which is beneficial to improving the light throughput of the optical lens. Preferably, the optical lens can further satisfy: 0.09≤D / H / FOV≤0.2, which is beneficial to further improving the light throughput of the optical lens. More preferably, the optical lens can further satisfy: 0.121≤D / H / FOV≤0.146, which is beneficial to further improving the light throughput of the optical lens.

[0102] In some optional embodiments, the optical lens satisfies: 2≤D / H / θ≤10; wherein D is the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens, H is the image height of the optical lens, and θ is the radian value corresponding to the field of view of the optical lens. By controlling the relationship between the maximum light clearance of the first side of the first lens corresponding to the maximum field of view, the image height, and the radian value corresponding to the field of view, while ensuring the field of view of the optical lens, the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens is appropriately increased, which is beneficial to improving the light throughput of the optical lens. Preferably, the optical lens can further satisfy: 4≤D / H / θ≤9, which is beneficial to further improving the light throughput of the optical lens. More preferably, the optical lens can further satisfy: 6.953≤D / H / θ≤8.342, which is beneficial to further improving the light throughput of the optical lens.

[0103] In some optional embodiments, the optical lens satisfies: 0.15≤(F×θ) / D≤0.8; wherein D is the maximum aperture of the first side of the first lens corresponding to the maximum field angle of the optical lens, θ is the radian value corresponding to the field angle of the optical lens, and F is the focal length of the optical lens. By controlling the relationship between the maximum aperture of the first side of the first lens corresponding to the maximum field angle of the optical lens, the radian value corresponding to the field angle, and the focal length of the optical lens, the optical lens can appropriately increase the maximum aperture of the first side of the first lens corresponding to the maximum field angle of the optical lens under a certain field of view, which is beneficial to increase the light throughput of the optical lens. Preferably, the optical lens can further satisfy: 0.2≤(F×θ) / D≤0.5, which is beneficial to further increase the light throughput of the optical lens. More preferably, the optical lens can further satisfy: 0.274≤(F×θ) / D≤0.317, which is beneficial to further increase the light throughput of the optical lens.

[0104] In some optional embodiments, the optical lens satisfies: D / H / F≤0.3; wherein D is the maximum light clearance of the first side of the first lens corresponding to the maximum field angle of the optical lens, H is the image height of the optical lens, and F is the focal length of the optical lens. By controlling the relationship between the maximum light clearance of the first side of the first lens corresponding to the maximum field angle of the optical lens, the image height of the optical lens, and the focal length, it is ensured that the optical lens is appropriately improved under a certain image height and focal length, which is beneficial to improving the maximum light clearance of the first side of the first lens corresponding to the maximum field angle of the optical lens, and is beneficial to improving the light throughput of the optical lens. Preferably, the optical lens can further satisfy: D / H / F≤0.25, which is beneficial to further improving the light throughput of the optical lens. More preferably, the optical lens can further satisfy: 0.088≤D / H / F≤0.12, which is beneficial to further improving the light throughput of the optical lens.

[0105] In some optional embodiments, the optical lens satisfies: F / ENPD≤1.5; wherein F is the focal length of the optical lens, and ENPD is the entrance pupil diameter of the optical lens. By controlling F / ENPD within a suitable range, it is beneficial to control the aperture of the optical lens, thereby increasing the light throughput of the optical lens, improving the relative illumination, and improving the imaging capability of the optical lens in a dark environment. Preferably, the optical lens can further satisfy: F / ENPD≤1.4, which is beneficial for the optical lens to further increase the light throughput. More preferably, the optical lens can further satisfy: 0.7≤F / ENPD≤1.392, which is beneficial for the optical lens to further increase the light throughput.

[0106] In some optional embodiments, the optical lens satisfies: F / ENPD / D≤0.05; wherein D is the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens, F is the focal length of the optical lens, and ENPD is the entrance pupil diameter of the optical lens. By controlling the relationship between the maximum light clearance of the first side of the first lens corresponding to the maximum field of view, the focal length of the optical lens, and the entrance pupil diameter, it is beneficial to increase the aperture, increase the light throughput of the optical lens, improve the relative illumination, and improve the imaging capability of the optical lens in dark environments. Preferably, the optical lens can further satisfy: F / ENPD / D≤0.03, which is beneficial for the optical lens to further increase the light throughput. More preferably, the optical lens can further satisfy: 0.014≤F / ENPD / D≤0.029, which is beneficial for the optical lens to further increase the light throughput.

[0107] In some optional embodiments, the optical lens satisfies: 0.5≤DST / F≤2.5; wherein F is the focal length of the optical lens, and DST is the aperture diameter of the optical lens. The larger the ratio of the aperture diameter to the effective focal length, the larger the aperture of the optical lens, and the DST / F is limited within a reasonable range, while ensuring the imaging performance of the optical lens, improving the light throughput of the optical lens, improving the relative illumination, and improving the imaging capability of the optical lens in dark environments. Preferably, the optical lens can further satisfy: 0.8≤DST / F≤1.5, which is beneficial for the optical lens to further improve the light throughput. More preferably, the optical lens can further satisfy: 1.009≤DST / F≤1.398, which is beneficial for the optical lens to further improve the light throughput.

[0108] In some optional embodiments, the optical lens satisfies: 1≤D / D10≤5; wherein D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, and D10 is the maximum aperture of the second side of the fifth lens corresponding to the maximum field of view of the optical lens. By controlling D / D10 within a suitable range, the overall trend of the light from the first lens to the fifth lens can be controlled, and D / D10 is greater than or equal to 1 so that the light shrinks in a cone as a whole. Under the same chip size, the larger the D / D10 ratio, the greater the light shrinkage, and the first lens can collect a larger area to receive light. The more light is collected, the higher the luminous flux. Preferably, the optical lens can further satisfy: 1.5≤D / D10≤4, which is beneficial for the optical lens to further increase the light throughput. More preferably, the optical lens can further satisfy: 2.275≤D / D10≤2.788, which is beneficial for the optical lens to further increase the light throughput.

[0109] In some optional embodiments, the optical lens satisfies: 0.3≤D / TTL≤1; wherein D is the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens, and TTL is the total optical length of the optical lens. By controlling D / TTL within a suitable range, the maximum light clearance of the first side of the first lens corresponding to the maximum field of view of the optical lens is controlled within a larger range, which is beneficial to collecting large-angle light, and has a high degree of light convergence under a smaller total optical length, which is beneficial to achieving high light throughput. Preferably, the optical lens can further satisfy: 0.45≤D / TTL≤0.9, which is beneficial for the optical lens to further improve the light throughput. More preferably, the optical lens can further satisfy: 0.608≤D / TTL≤0.865, which is beneficial for the optical lens to further improve the light throughput.

[0110] In some optional embodiments, the optical lens satisfies: 1≤D / D7≤5; wherein D is the maximum light-clearance diameter of the first side of the first lens corresponding to the maximum field of view of the optical lens, and D7 is the maximum light-clearance diameter of the first side of the fourth lens corresponding to the maximum field of view of the optical lens. By controlling D / D7 within an appropriate range, the trend of light from the first lens to the fourth lens can be controlled, which is conducive to a smooth trend of light and improves the resolution of the optical lens. Preferably, the optical lens can further satisfy: 1.5≤D / D7≤4, which is conducive to further improving the resolution of the optical lens. More preferably, the optical lens can further satisfy: 2.275≤D / D7≤2.788, which is conducive to further improving the resolution of the optical lens.

[0111] In some optional embodiments, the optical lens satisfies: -8≤F1 / F3≤0; wherein F1 is the focal length of the first lens, and F3 is the focal length of the third lens. By controlling F1 / F3 within a reasonable range, and the first lens and the second lens have opposite optical focal powers, and reasonably distributing the focal lengths of the two, it is beneficial to achieve focal length thermal compensation between the first lens and the third lens, which is beneficial to improving the thermal compensation capability of the optical system and improving the imaging quality of the optical lens. Preferably, the optical lens can further satisfy: -5≤F1 / F3≤-0.05, which is beneficial to further improving the thermal compensation capability of the optical lens. More preferably, the optical lens can further satisfy: -3.796≤F1 / F3≤-0.113, which is beneficial to further improving the thermal compensation capability of the optical lens.

[0112] In some optional embodiments, the optical lens satisfies: -50≤F3 / F≤0; wherein F3 is the focal length of the third lens, and F is the focal length of the optical lens. Setting the third lens to have a negative optical power and controlling the focal length of the third lens within a reasonable range is beneficial to correcting the aberrations produced by the positive lens in the optical lens, thereby improving the resolution of the optical lens. Preferably, the optical lens can further satisfy: -35≤F3 / F≤-0.95, which is beneficial to further improving the resolution of the optical lens. More preferably, the optical lens can further satisfy: -6≤F3 / F≤0, which is beneficial to further improving the resolution of the optical lens. Most preferably, -28.021≤F3 / F≤-0.968, which is beneficial to further improving the resolution of the optical lens.

[0113] In some optional embodiments, the optical lens satisfies: -10≤R10 / F5≤1.5, wherein R10 is the radius of curvature of the second side of the fifth lens, and F5 is the focal length of the fifth lens. By controlling the ratio of the radius of curvature of the second side of the fifth lens to the focal length of the fifth lens within a certain range, the refractive power of the lens is improved while ensuring the aberration, which is conducive to achieving short back focus. Preferably, the optical lens can further satisfy: -8≤R10 / F5≤1, which is conducive to further achieving short back focus. More preferably, the optical lens can further satisfy: -5.079≤R10 / F5≤0.71, which is conducive to further achieving short back focus.

[0114] In some optional embodiments, the optical lens satisfies: T34 / TTL≤0.2, wherein T34 is the air gap between the third lens and the fourth lens on the optical axis, and TTL is the total optical length of the optical lens. By controlling the relationship between the air gap between the third lens and the fourth lens on the optical axis and the total optical length of the optical lens, a smaller air gap is maintained between the third lens and the fourth lens, and the aberration can be alleviated through the air gap while the third lens receives the front light, thereby improving the resolution effect of the fourth lens in the rear optical system, which is conducive to achieving high resolution. Preferably, the optical lens can further satisfy: 0.003≤T34 / TTL≤0.193, which is conducive to further improving the resolution.

[0115] In some optional embodiments, the optical lens satisfies: 0.5≤T5 / T4≤4.5; wherein T5 is the center thickness of the fifth lens, and T4 is the center thickness of the fourth lens. By controlling the ratio of the center thickness of the fifth lens to the center thickness of the fourth lens within a certain range, the refractive index and the air gap can be controlled to ensure the imaging quality of the optical lens while reducing the total optical length, which is conducive to miniaturization. Preferably, the optical lens can further satisfy: 0.6≤T5 / T4≤3.5, which is conducive to further miniaturization. More preferably, the optical lens can further satisfy: 0.782≤T5 / T4≤2.208, which is conducive to further miniaturization.

[0116] In some optional embodiments, the optical lens satisfies: 0.02≤T4 / F≤0.8; wherein T4 is the center thickness of the fourth lens, and F is the focal length of the optical lens. By controlling the ratio of the center thickness of the fourth lens to the focal length of the optical lens within a certain range, it is beneficial for the fourth lens to smoothly receive the light transmitted by the third lens with negative optical power, correct the optical path difference between the center light and the edge light, and help improve the resolution. Preferably, the optical lens can further satisfy: 0.05≤T4 / F≤0.65, which is beneficial to further improve the resolution of the optical lens. More preferably, the optical lens can further satisfy: 0.09≤T4 / F≤0.499, which is beneficial to further improve the resolution of the optical lens.

[0117] In some optional embodiments, the optical lens satisfies: -2≤R6 / R7≤8, wherein R6 is the radius of curvature of the second side of the third lens, and R7 is the radius of curvature of the first side of the fourth lens. The ratio of the radius of curvature of the second side of the third lens to the radius of curvature of the first side of the fourth lens is controlled so that the second side of the third lens fully deflects the light transmitted from the front lens, and the first side of the fourth lens sharply shrinks the light, which is conducive to achieving a short back focus. At the same time, while ensuring that the radius of curvature of the second side of the third lens is close to the radius of curvature of the first side of the fourth lens, the light is contracted or diffused at a small angle, the optical path difference between the edge light and the center light is reduced, and the resolution of the optical lens is improved. Preferably, the optical lens can further satisfy: -1≤R6 / R7≤5, which is conducive to the optical lens improving the resolution while satisfying the short back focus. More preferably, the optical lens can further satisfy: -0.487≤R6 / R7≤1.69, which is conducive to the optical lens improving the resolution while satisfying the short back focus.

[0118] In some optional embodiments, the optical lens satisfies: 0.5≤R1 / F≤8; wherein R1 is the radius of curvature of the first side of the first lens, and F is the focal length of the optical lens. By controlling the ratio of the radius of curvature of the first side of the first lens to the focal length of the optical lens, it is beneficial to collect more light and achieve a large field of view. Preferably, the optical lens can further satisfy: 0.8≤R1 / F≤5, which is beneficial for the optical lens to achieve a large field of view. More preferably, the optical lens can further satisfy: 1.205≤R1 / F≤3.392, which is beneficial for the optical lens to achieve a large field of view.

[0119] In some optional embodiments, the optical lens satisfies: 0.2≤R9 / F≤5; wherein F is the focal length of the optical lens, and R9 is the radius of curvature of the first side of the fifth lens. By controlling the ratio of the radius of curvature of the first side of the fifth lens to the focal length of the optical lens, it is beneficial to shrink the light entering the fifth lens, thereby facilitating the realization of a short back focus. Preferably, the optical lens may further satisfy: 0.35≤R9 / F≤1.5, which is beneficial for the optical lens to achieve a short back focus. More preferably, the optical lens may further satisfy: 0.478≤R9 / F≤0.901, which is beneficial for the optical lens to achieve a short back focus.

[0120] In some optional embodiments, the optical lens satisfies: |(|R8|-|R9|) / (|R8|+|R9|)|≤1.2; wherein R9 is the radius of curvature of the first side surface of the fifth lens, and R8 is the radius of curvature of the second side surface of the fourth lens. By controlling the relationship between the radius of curvature of the second side surface of the fourth lens and the radius of curvature of the first side surface of the fifth lens, the deflection angle of the light when it emerges from the second side surface of the fourth lens and the deflection angle of the light when it enters the first side surface of the fifth lens can be controlled, which is conducive to reducing the deflection angle difference of the pipeline between the two surfaces, facilitating the smooth transition of the light, and reducing the sensitivity of the lens while improving the resolution. Preferably, the optical lens can further satisfy: |(|R8|-|R9|) / (|R8|+|R9|)|≤0.8, which is conducive to reducing the sensitivity while improving the resolution. More preferably, the optical lens can further satisfy: 0.002≤|(|R8|-|R9|) / (|R8|+|R9|)|≤0.576, which is conducive to reducing the sensitivity while improving the resolution.

[0121] In some optional embodiments, the optical lens satisfies: 0.1≤(T1+T2) / TTL≤0.55, wherein T1 is the center thickness of the first lens, T2 is the center thickness of the second lens, and TTL is the total optical length of the optical lens. By controlling the proportion of the sum of the center thicknesses of the first lens and the second lens in the total optical length, it is beneficial to control the light to move smoothly and effectively correct astigmatism to improve the resolution. Preferably, the optical lens can further satisfy: 0.15≤(T1+T2) / TTL≤0.5, which is beneficial to further improve the resolution. More preferably, the optical lens can further satisfy: 0.216≤(T1+T2) / TTL≤0.38, which is beneficial to further improve the resolution.

[0122] In some optional embodiments, the optical lens satisfies: T12 / D≤0.5, wherein T12 is the air gap between the first lens and the second lens on the optical axis, and D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens. By limiting T12 / D within a reasonable range, the air gap between the first lens and the second lens on the optical axis can be controlled so that the front lens skirt can smoothly receive more large-angle light, which is conducive to achieving a large field of view. Preferably, the optical lens can further satisfy: T12 / D≤0.3, which is conducive to further achieving a large field of view. More preferably, the optical lens can further satisfy: 0.216≤0.003≤T12 / D≤0.115≤0.38, which is conducive to further achieving a large field of view.

[0123] In some optional embodiments, the optical lens satisfies: 20≤arctan(1 / K(S9))≤65, wherein arctan(1 / K(S9)) is the opening angle of the first side of the fifth lens. The first side of the fifth lens has a larger opening angle, which is beneficial to the rapid focusing of large-angle peripheral light entering through the fifth lens, and is beneficial to improving the resolution of the optical lens. Preferably, the optical lens can further satisfy: 25°≤arctan(1 / K(S9))≤60°, which is beneficial to further improve the resolution. More preferably, the optical lens can further satisfy: 30.453≤arctan(1 / K(S9))≤55.45, which is beneficial to further improve the resolution.

[0124] In some optional embodiments, the optical lens satisfies: T23×BFL / F4≤2.1; wherein T23 is the air gap between the second lens and the third lens on the optical axis, BFL is the optical back focus of the optical lens, and F4 is the focal length of the fourth lens. By reasonably matching the air gap between the second lens and the third lens on the optical axis and the focal length of the fourth lens, the light is gradually and smoothly transitioned to the fifth lens inside the optical lens, which is conducive to achieving short back focus while improving the resolution. In particular, when matched with a third lens with negative optical power, the air gap between the second lens and the third lens is controlled to control the trend of the light entering the third lens with negative optical power, and the deflection ability of the light after divergence through the third lens is controlled by controlling the focal length of the fourth lens, so as to improve the imaging quality on the basis of meeting the short back focus requirement. Preferably, the optical lens can further meet: 0≤T23×BFL / F4≤2.032, which is conducive to further meeting the short back focus while improving the resolution.

[0125] In some optional embodiments, the optical lens satisfies: T23 / F≤0.3; wherein T23 is the air gap between the second lens and the third lens on the optical axis, and F is the focal length of the optical lens. By limiting T23 / F within a reasonable range, while ensuring the focal length of the optical lens, it is beneficial to reduce the air gap between the second lens and the third lens, and to control the light trend entering the negative lens, so that the light trend is smooth and the resolution is improved. Preferably, the optical lens can further satisfy: 0≤T23 / F≤0.244, which is beneficial to further improve the resolution.

[0126] In some optional embodiments, the optical lens satisfies: |F4 / F|≤4.5; wherein F4 is the focal length of the fourth lens, and F is the focal length of the optical lens. While ensuring the focal length of the optical lens, the focal length of the fourth lens is controlled to be smaller, so that the fourth lens can maintain a strong light processing capability, which is conducive to converging light to achieve short back focus. Preferably, the optical lens can further satisfy: |F4 / F|≤3.5, which is conducive to further achieving short back focus. More preferably, the optical lens can further satisfy: 0.794≤|F4 / F|≤2.929, which is conducive to further achieving short back focus.

[0127] In some optional embodiments, the optical lens satisfies: |F2 / F|≤18; wherein F is the focal length of the optical lens, and F2 is the focal length of the second lens. Reasonable control of the focal length of the second lens is conducive to the smooth transition of light to the third lens, reducing the sensitivity of the lens and improving the resolution. Preferably, the optical lens can further satisfy: |F2 / F|≤16, which is conducive to further improving the resolution. More preferably, the optical lens can further satisfy: 1.297≤|F2 / F|≤15.501, which is conducive to further improving the resolution.

[0128] In some optional embodiments, the optical lens satisfies: |F5 / F|≤15; wherein F is the focal length of the optical lens, and F5 is the focal length of the fifth lens. Reasonable control of the focal length of the fifth lens ensures the light convergence capability of the fifth lens, which is beneficial for the light to converge to the imaging surface through the fifth lens, and is beneficial for achieving short back focus. Preferably, the optical lens can further satisfy: |F5 / F|≤13, which is beneficial for further achieving short back focus. More preferably, the optical lens can further satisfy: 0.571≤|F5 / F|≤12.074, which is beneficial for further achieving short back focus.

[0129] In some optional embodiments, the aperture is located between the first lens and the second lens, which is beneficial to effectively converge the light entering the optical system, reduce the aperture of the rear end of the optical system, and reduce the assembly sensitivity of the optical system.

[0130] In some optional embodiments, the aperture is located between the second lens and the third lens, which is beneficial to effectively converge the light entering the optical system, reduce the aperture of the rear end of the optical system, and reduce the assembly sensitivity of the optical system.

[0131] In some optional embodiments, the first side surface of the first lens and the second side surface of the second lens may be reversed, and the reverse curvature can further correct the light so that the light smoothly transitions to the next side. The reverse curvature can correct the edge light angle, reduce the edge field aberration, and improve the resolution.

[0132] In some optional embodiments, the side surfaces of the first lens, the second lens, the third lens, the fourth lens and the fifth lens may be aspherical surfaces, which can change the surface shape so as to change the angle of light turning, thereby reducing system aberrations and further improving the resolution.

[0133] In some optional embodiments, the second lens and the third lens can be glued together. The glued lens can reduce the air space between the lenses, reduce the total length of the optical system, and at the same time reduce the assembly components between adjacent lenses, reduce the process and reduce the cost. At the same time, it reduces the sensitivity of lens tolerances such as tilt and eccentricity generated during the assembly process, and can also reduce the loss of light energy caused by reflection between lenses, which is conducive to improving illumination, and can further reduce the field curvature and correct the off-axis point aberration of the system. This arrangement allows the various aberrations of the optical system to be fully corrected, and under the premise of a compact structure, it can improve resolution, optimize distortion, CRA and other optical performance.

[0134] It should be noted that the total length TTL of the optical lens is the distance between the first side surface of the first lens and the imaging surface of the optical lens on the optical axis, and the optical back focus BFL is the distance between the second side surface of the fifth lens and the imaging surface of the optical lens on the optical axis.

[0135] In addition, the resolution of the optical lens of the present application can reach 0.2 or more when it is 10lp / mm, and the image is uniform, meeting the requirements of high resolution. The resolution of the optical lens in the following embodiments 1 to 46 of the present application can reach 0.2 or more when it is 10lp / mm, and the image is uniform, meeting the requirements of high resolution.

[0136] Optionally, the optical lens may further include a filter for correcting color deviation and a protective glass for protecting a photosensitive element located on the imaging surface.

[0137] The optical lens in the present application may use multiple lenses, such as the five lenses mentioned above. In the present application, at least one of the mirror surfaces of each lens is an aspherical mirror surface. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality. The setting of an aspherical lens helps to correct system aberrations and improve resolution. Specifically, when focusing on the imaging quality of the optical lens, aspherical lenses can be used for the first lens to the fifth lens.

[0138] In an exemplary embodiment, the first lens to the fifth lens may all be glass lenses. An optical lens made of glass can suppress the deviation of the back focus of the optical lens with temperature changes to improve the stability of the system. At the same time, the use of glass material can avoid lens imaging blur caused by high and low temperature changes in the use environment, which affects the normal use of the lens. For example, the temperature range of the optical lens with an all-glass design is relatively wide, and stable optical performance can be maintained in the range of -40°C to 105°C. Specifically, when focusing on resolution quality and reliability, the first lens to the fifth lens may all be glass aspherical lenses. Of course, in applications where temperature stability requirements are lower, the first lens to the fifth lens in the optical lens may also be made of plastic. Using plastic to make optical lenses can effectively reduce production costs. Of course, the first lens to the fifth lens in the optical lens may also be made of a combination of plastic and glass.

[0139] However, those skilled in the art should understand that, without departing from the technical solution claimed in the present application, the number of lenses constituting the optical lens can be changed to obtain the various results and advantages described in this specification. For example, although five lenses are described as an example in the embodiment, the optical lens is not limited to including five lenses. If necessary, the optical lens may also include other numbers of lenses.

[0140] The following further describes examples of specific surface shapes and parameters of the optical lens applicable to the above-mentioned embodiments with reference to the accompanying drawings.

[0141] Embodiment 1

[0142] like Figure 1 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0143] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0144] In this embodiment, the focal length F of the optical lens is 32.754 mm, the total length TTL of the optical lens is 61.813 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0145] Table 1 shows the basic structural parameters of the optical lens of Example 1, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0146] Table 1

[0147]

[0148] In this embodiment, the first side surface S1 of the first lens and the second side surface S2 of the first lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, the following aspherical surface formula:

[0149] Formula (1);

[0150] Wherein, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; and A is the high-order coefficient. Table 2 below shows the cone coefficient k and the high-order coefficients A (4th-order coefficient), B (6th-order coefficient), C (8th-order coefficient), D (10th-order coefficient), E (12th-order coefficient), F (14th-order coefficient), and G (16th-order coefficient) that can be used for the surface of the aspheric lens in this embodiment.

[0151] Table 2

[0152]

[0153] Embodiment 2

[0154] like Figure 2 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0155] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is convex. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0156] In this embodiment, the focal length F of the optical lens is 32.958 mm, the total length TTL of the optical lens is 80.098 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0157] Table 3 shows the basic structural parameters of the optical lens of Example 2, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0158] Table 3

[0159]

[0160] In this embodiment, the second side surface S2 of the first lens, the first side surface S3 of the second lens, and the second side surface S4 of the second lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0161] Table 4 below shows the cone coefficient k and various high-order coefficients that can be used for the aspherical lens surface in this embodiment.

[0162] Table 4

[0163]

[0164] Embodiment 3

[0165] like Figure 3 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0166] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0167] In this embodiment, the focal length F of the optical lens is 30.706 mm, the total length TTL of the optical lens is 58.235 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0168] Table 5 shows the basic structural parameters of the optical lens of Example 3, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0169] Table 5

[0170]

[0171] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S3 of the second lens, and the second side surface S4 of the second lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0172] Table 6 below shows the cone coefficient k and various high-order coefficients that can be used for the aspherical lens surface in this embodiment.

[0173] Table 6

[0174]

[0175] For the MTF curve of this embodiment, please refer to Fig.47 From the figure, we can see that the resolution of the optical lens can reach above 0.2 when it is 10lp / mm, and the image is uniform, meeting the requirements of high resolution.

[0176] Embodiment 4

[0177] like Figure 4As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0178] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is a plane, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0179] In this embodiment, the focal length F of the optical lens is 33.731 mm, the total length TTL of the optical lens is 66.139 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0180] Table 7 shows the basic structural parameters of the optical lens of Example 4, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0181] Table 7

[0182]

[0183] In this embodiment, the first side surface S1 of the first lens and the second side surface S2 of the first lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0184] Table 8 below shows the cone coefficient k and various high-order coefficients that can be used for the aspherical lens surface in this embodiment.

[0185] Table 8

[0186]

[0187] Embodiment 5

[0188] like Figure 5As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0189] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is a plane. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0190] In this embodiment, the focal length F of the optical lens is 33.732 mm, the total length TTL of the optical lens is 66.131 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0191] Table 9 shows the basic structural parameters of the optical lens of Example 5, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0192] Table 9

[0193]

[0194] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0195] Table 10 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0196] Table 10

[0197]

[0198] Embodiment 6

[0199] like Figure 6 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0200] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is a plane. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0201] In this embodiment, the focal length F of the optical lens is 33.793 mm, the total length TTL of the optical lens is 67.409 mm, and the maximum field of view FOV of the optical lens is 24.973°.

[0202] Table 11 shows the basic structural parameters of the optical lens of Example 6, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0203] Table 11

[0204]

[0205] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0206] Table 12 below shows the cone coefficient k and various high-order coefficients that can be used for the aspherical lens surface in this embodiment.

[0207] Table 12

[0208]

[0209] Embodiment 7

[0210] like Figure 7 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0211] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is a plane. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0212] In this embodiment, the focal length F of the optical lens is 33.714 mm, the total length TTL of the optical lens is 66.355 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0213] Table 13 shows the basic structural parameters of the optical lens of Example 7, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0214] Table 13

[0215]

[0216] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0217] Table 14 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0218] Table 14

[0219]

[0220] Embodiment 8

[0221] like Figure 8 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0222] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0223] In this embodiment, the focal length F of the optical lens is 33.708 mm, the total length TTL of the optical lens is 67.214 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0224] Table 15 shows the basic structural parameters of the optical lens of Example 8, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0225] Table 15

[0226]

[0227] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0228] Table 16 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0229] Table 16

[0230]

[0231] Embodiment 9

[0232] like Fig. 9 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0233] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is a plane, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0234] In this embodiment, the focal length F of the optical lens is 33.372 mm, the total length TTL of the optical lens is 65.529 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0235] Table 17 shows the basic structural parameters of the optical lens of Example 9, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0236] Table 17

[0237]

[0238] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0239] Table 18 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0240] Table 18

[0241]

[0242] Embodiment 10

[0243] like Fig.10 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0244] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is a plane. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0245] In this embodiment, the focal length F of the optical lens is 33.800 mm, the total length TTL of the optical lens is 68.226 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0246] Table 19 shows the basic structural parameters of the optical lens of Example 10, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0247] Table 19

[0248]

[0249] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0250] Table 20 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0251] Table 20

[0252]

[0253] Embodiment 11

[0254] like Fig.11 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0255] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is a plane. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is concave, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0256] In this embodiment, the focal length F of the optical lens is 33.975 mm, the total length TTL of the optical lens is 67.984 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0257] Table 21 shows the basic structural parameters of the optical lens of Example 11, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0258] Table 21

[0259]

[0260] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0261] Table 22 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0262] Table 22

[0263]

[0264] Embodiment 12

[0265] like Fig.12 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0266] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is concave. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is convex. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. The second lens is cemented with the third lens.

[0267] In this embodiment, the focal length F of the optical lens is 35.001 mm, the total length TTL of the optical lens is 57.930 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0268] Table 23 shows the basic structural parameters of the optical lens of Example 12, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0269] Table 23

[0270]

[0271] In this embodiment, the second side surface S2 of the first lens, the first side surface S3 of the second lens, and the second side surface S10 of the fifth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0272] Table 24 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0273] Table 24

[0274]

[0275] Embodiment 13

[0276] like Fig.13 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0277] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is concave, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0278] In this embodiment, the focal length F of the optical lens is 30.061 mm, the total length TTL of the optical lens is 78.129 mm, and the maximum field of view FOV of the optical lens is 24.962°.

[0279] Table 25 shows the basic structural parameters of the optical lens of Example 13, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0280] Table 25

[0281]

[0282] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0283] Table 26 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0284] Table 26

[0285]

[0286] Embodiment 14

[0287] like Fig.14 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0288] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is a plane, and the second side surface S4 of the second lens is a concave surface. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0289] In this embodiment, the focal length F of the optical lens is 32.062 mm, the total length TTL of the optical lens is 79.837 mm, and the maximum field of view FOV of the optical lens is 24.958°.

[0290] Table 27 shows the basic structural parameters of the optical lens of Example 14, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0291] Table 27

[0292]

[0293] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0294] Table 28 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0295] Table 28

[0296]

[0297] Embodiment 15

[0298] like Fig.15 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0299] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0300] In this embodiment, the focal length F of the optical lens is 32.975 mm, the total length TTL of the optical lens is 81.251 mm, and the maximum field of view FOV of the optical lens is 24.967°.

[0301] Table 29 shows the basic structural parameters of the optical lens of Example 15, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0302] Table 29

[0303]

[0304] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0305] Table 30 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0306] Table 30

[0307]

[0308] Embodiment 16

[0309] like Fig.16 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0310] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is a plane, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0311] In this embodiment, the focal length F of the optical lens is 30.866 mm, the total length TTL of the optical lens is 77.736 mm, and the maximum field of view FOV of the optical lens is 24.961°.

[0312] Table 31 shows the basic structural parameters of the optical lens of Example 16, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0313] Table 31

[0314]

[0315] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0316] Table 32 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0317] Table 32

[0318]

[0319] Embodiment 17

[0320] like Fig.17 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0321] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is concave, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0322] In this embodiment, the focal length F of the optical lens is 33.577 mm, the total length TTL of the optical lens is 76.927 mm, and the maximum field of view FOV of the optical lens is 24.965°.

[0323] Table 33 shows the basic structural parameters of the optical lens of Example 17, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0324] Table 33

[0325]

[0326] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0327] Table 34 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0328] Table 34

[0329]

[0330] Embodiment 18

[0331] like Fig.18 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0332] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is a plane, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0333] In this embodiment, the focal length F of the optical lens is 33.469 mm, the total length TTL of the optical lens is 76.543 mm, and the maximum field of view FOV of the optical lens is 24.960°.

[0334] Table 35 shows the basic structural parameters of the optical lens of Example 18, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0335] Table 35

[0336]

[0337] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0338] Table 36 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0339] Table 36

[0340]

[0341] Embodiment 19

[0342] like Fig.19 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0343] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0344] In this embodiment, the focal length F of the optical lens is 32.015 mm, the total length TTL of the optical lens is 68.077 mm, and the maximum field of view FOV of the optical lens is 25.001°.

[0345] Table 37 shows the basic structural parameters of the optical lens of Example 19, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0346] Table 37

[0347]

[0348] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0349] Table 38 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0350] Table 38

[0351]

[0352] Embodiment 20

[0353] like Fig. 20 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0354] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is a plane, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0355] In this embodiment, the focal length F of the optical lens is 32.647 mm, the total length TTL of the optical lens is 73.073 mm, and the maximum field of view FOV of the optical lens is 24.972°.

[0356] Table 39 shows the basic structural parameters of the optical lens of Example 20, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0357] Table 39

[0358]

[0359] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0360] Table 40 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0361] Table 40

[0362]

[0363] Embodiment 21

[0364] like Fig.21 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0365] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is concave, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0366] In this embodiment, the focal length F of the optical lens is 30.582 mm, the total length TTL of the optical lens is 75.885 mm, and the maximum field of view FOV of the optical lens is 24.970°.

[0367] Table 41 shows the basic structural parameters of the optical lens of Example 21, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0368] Table 41

[0369]

[0370] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0371] Table 42 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0372] Table 42

[0373]

[0374] Embodiment 22

[0375] like Fig. 22 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0376] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is a plane, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0377] In this embodiment, the focal length F of the optical lens is 34.208 mm, the total length TTL of the optical lens is 79.249 mm, and the maximum field of view FOV of the optical lens is 24.970°.

[0378] Table 43 shows the basic structural parameters of the optical lens of Example 22, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0379] Table 43

[0380]

[0381] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0382] Table 44 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0383] Table 44

[0384]

[0385] Embodiment 23

[0386] like Fig.23 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0387] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is a plane, and the second side surface S6 of the third lens is a concave surface. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0388] In this embodiment, the focal length F of the optical lens is 34.742 mm, the total length TTL of the optical lens is 79.59 mm, and the maximum field of view FOV of the optical lens is 24.969°.

[0389] Table 45 shows the basic structural parameters of the optical lens of Example 23, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0390] Table 45

[0391]

[0392] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0393] Table 46 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0394] Table 46

[0395]

[0396] Embodiment 24

[0397] like Fig.24 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0398] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0399] In this embodiment, the focal length F of the optical lens is 32.6859 mm, the total length TTL of the optical lens is 32.6859 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0400] Table 47 shows the basic structural parameters of the optical lens of Example 24, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0401] Table 47

[0402]

[0403] In this embodiment, the first side surface S1 of the first lens and the second side surface S2 of the first lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0404] Table 48 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0405] Table 48

[0406]

[0407] Embodiment 25

[0408] like Fig.25 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0409] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is convex. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0410] In this embodiment, the focal length F of the optical lens is 32.9079 mm, the total length TTL of the optical lens is 80.05 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0411] Table 49 shows the basic structural parameters of the optical lens of Example 25, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0412] Table 49

[0413]

[0414] In this embodiment, the second side surface S2 of the first lens, the first side surface S3 of the second lens, and the second side surface S4 of the second lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0415] Table 50 below shows the cone coefficient k and various higher-order coefficients that can be used for the aspherical lens surface in this embodiment.

[0416] Table 50

[0417]

[0418] Embodiment 26

[0419] like Fig.26 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0420] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0421] In this embodiment, the focal length F of the optical lens is 30.793 mm, the total length TTL of the optical lens is 58.249 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0422] Table 51 shows the basic structural parameters of the optical lens of Example 26, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0423] Table 51

[0424]

[0425] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S3 of the second lens, and the second side surface S4 of the second lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0426] Table 52 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0427] Table 52

[0428]

[0429] Embodiment 27

[0430] like Fig. 27 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0431] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is a plane, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0432] In this embodiment, the focal length F of the optical lens is 33.702 mm, the total length TTL of the optical lens is 65.900 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0433] Table 53 shows the basic structural parameters of the optical lens of Example 27, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0434] Table 53

[0435]

[0436] In this embodiment, the first side surface S1 of the first lens and the second side surface S2 of the first lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0437] Table 54 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0438] Table 54

[0439]

[0440] Embodiment 28

[0441] like Fig.28 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0442] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is a plane. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0443] In this embodiment, the focal length F of the optical lens is 33.4802 mm, the total length TTL of the optical lens is 65.120 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0444] Table 55 shows the basic structural parameters of the optical lens of Example 28, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0445] Table 55

[0446]

[0447] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0448] Table 56 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0449] Table 56

[0450]

[0451] Embodiment 29

[0452] like Fig.29 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0453] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is a plane. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0454] In this embodiment, the focal length F of the optical lens is 33.641 mm, the total length TTL of the optical lens is 66.833 mm, and the maximum field of view FOV of the optical lens is 24.973°.

[0455] Table 57 shows the basic structural parameters of the optical lens of Example 29, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0456] Table 57

[0457]

[0458] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0459] Table 58 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0460] Table 58

[0461]

[0462] Embodiment 30

[0463] like Fig.30 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0464] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is a plane. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0465] In this embodiment, the focal length F of the optical lens is 33.572 mm, the total length TTL of the optical lens is 65.904 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0466] Table 59 shows the basic structural parameters of the optical lens of Example 30, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0467] Table 59

[0468]

[0469] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0470] Table 60 below shows the cone coefficient k and various higher-order coefficients that can be used for the aspheric lens surface in this embodiment.

[0471] Table 60

[0472]

[0473] Embodiment 31

[0474] like Fig.31 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0475] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0476] In this embodiment, the focal length F of the optical lens is 33.727 mm, the total length TTL of the optical lens is 67.271 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0477] Table 61 shows the basic structural parameters of the optical lens of Example 31, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0478] Table 61

[0479]

[0480] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0481] Table 62 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspheric lens surface in this embodiment.

[0482] Table 62

[0483]

[0484] Embodiment 32

[0485] like Fig.32 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0486] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is a plane, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0487] In this embodiment, the focal length F of the optical lens is 33.199 mm, the total length TTL of the optical lens is 64.800 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0488] Table 63 shows the basic structural parameters of the optical lens of Example 32, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0489] Table 63

[0490]

[0491] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0492] Table 64 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0493] Table 64

[0494]

[0495] Embodiment 33

[0496] like Fig.33 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0497] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is a plane. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0498] In this embodiment, the focal length F of the optical lens is 33.678 mm, the total length TTL of the optical lens is 67.823 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0499] Table 65 shows the basic structural parameters of the optical lens of Example 33, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0500] Table 65

[0501]

[0502] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, the formula (1) in the first embodiment.

[0503] Table 66 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspheric lens surface in this embodiment.

[0504] Table 66

[0505]

[0506] Embodiment 34

[0507] like Fig.34 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0508] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is a plane. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is concave, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0509] In this embodiment, the focal length F of the optical lens is 33.973 mm, the total length TTL of the optical lens is 67.732 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0510] Table 67 shows the basic structural parameters of the optical lens of Example 34, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0511] Table 67

[0512]

[0513] In this embodiment, the first side surface S1 of the first lens is an aspherical surface. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0514] Table 68 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0515] Table 68

[0516]

[0517] Embodiment 35

[0518] like Fig.35 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0519] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is concave. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is concave. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is convex. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. The second lens is cemented with the third lens.

[0520] In this embodiment, the focal length F of the optical lens is 34.985 mm, the total length TTL of the optical lens is 57.832 mm, and the maximum field of view FOV of the optical lens is 24.974°.

[0521] Table 69 shows the basic structural parameters of the optical lens of Example 35, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0522] Table 69

[0523]

[0524] In this embodiment, the second side surface S2 of the first lens, the first side surface S3 of the second lens, and the second side surface S10 of the fifth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0525] Table 70 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0526] Table 70

[0527]

[0528] Embodiment 36

[0529] like Fig.36 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0530] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is concave, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0531] In this embodiment, the focal length F of the optical lens is 29.961 mm, the total length TTL of the optical lens is 78.129 mm, and the maximum field of view FOV of the optical lens is 24.962°.

[0532] Table 71 shows the basic structural parameters of the optical lens of Example 36, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0533] Table 71

[0534]

[0535] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0536] Table 72 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0537] Table 72

[0538]

[0539] Embodiment 37

[0540] like Fig.37 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0541] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is a plane, and the second side surface S4 of the second lens is a concave surface. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0542] In this embodiment, the focal length F of the optical lens is 32.002 mm, the total length TTL of the optical lens is 79.837 mm, and the maximum field of view FOV of the optical lens is 24.958°.

[0543] Table 73 shows the basic structural parameters of the optical lens of Example 37, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0544] Table 73

[0545]

[0546] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0547] Table 74 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0548] Table 74

[0549]

[0550] Embodiment 38

[0551] like Fig.38 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0552] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0553] In this embodiment, the focal length F of the optical lens is 32.980 mm, the total length TTL of the optical lens is 81.051 mm, and the maximum field of view FOV of the optical lens is 24.967°.

[0554] Table 75 shows the basic structural parameters of the optical lens of Example 38, where the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0555] Table 75

[0556]

[0557] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0558] Table 76 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0559] Table 76

[0560]

[0561] Embodiment 39

[0562] like Fig.39 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0563] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is a plane, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has positive power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0564] In this embodiment, the focal length F of the optical lens is 30.792 mm, the total length TTL of the optical lens is 77.064 mm, and the maximum field of view FOV of the optical lens is 24.961°.

[0565] Table 77 shows the basic structural parameters of the optical lens of Example 39, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0566] Table 77

[0567]

[0568] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0569] Table 78 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0570] Table 78

[0571]

[0572] Embodiment 40

[0573] like Fig.40 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0574] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is concave, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0575] In this embodiment, the focal length F of the optical lens is 33.462 mm, the total length TTL of the optical lens is 76.427 mm, and the maximum field of view FOV of the optical lens is 24.966°.

[0576] Table 79 shows the basic structural parameters of the optical lens of Example 40, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0577] Table 79

[0578]

[0579] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0580] Table 80 below shows the cone coefficient k and various higher-order coefficients that can be used for the aspheric lens surface in this embodiment.

[0581] Table 80

[0582]

[0583] Embodiment 41

[0584] like Fig.41 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0585] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is a plane, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0586] In this embodiment, the focal length F of the optical lens is 33.202 mm, the total length TTL of the optical lens is 76.543 mm, and the maximum field of view FOV of the optical lens is 24.960°.

[0587] Table 81 shows the basic structural parameters of the optical lens of Example 41, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0588] Table 81

[0589]

[0590] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0591] Table 82 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0592] Table 82

[0593]

[0594] Embodiment 42

[0595] like Fig.42 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0596] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0597] In this embodiment, the focal length F of the optical lens is 31.836 mm, the total length TTL of the optical lens is 67.669 mm, and the maximum field of view FOV of the optical lens is 25.001°.

[0598] Table 83 shows the basic structural parameters of the optical lens of Example 42, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0599] Table 83

[0600]

[0601] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0602] Table 84 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0603] Table 84

[0604]

[0605] Embodiment 43

[0606] like Fig.43 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0607] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is concave. The third lens L3 has negative power, the first side surface S5 of the third lens is a plane, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0608] In this embodiment, the focal length F of the optical lens is 32.513 mm, the total length TTL of the optical lens is 72.498 mm, and the maximum field of view FOV of the optical lens is 24.972°.

[0609] Table 85 shows the basic structural parameters of the optical lens of Example 43, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0610] Table 85

[0611]

[0612] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0613] Table 86 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0614] Table 86

[0615]

[0616] Embodiment 44

[0617] like Fig.44 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0618] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is concave, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is concave, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first side surface of the first lens is recurved.

[0619] In this embodiment, the focal length F of the optical lens is 30.445 mm, the total length TTL of the optical lens is 75.570 mm, and the maximum field of view FOV of the optical lens is 24.970°.

[0620] Table 87 shows the basic structural parameters of the optical lens of Example 44, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0621] Table 87

[0622]

[0623] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0624] Table 88 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspheric lens surface in this embodiment.

[0625] Table 88

[0626]

[0627] Embodiment 45

[0628] like Fig.45 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0629] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is a plane, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is concave. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0630] In this embodiment, the focal length F of the optical lens is 34.240 mm, the total length TTL of the optical lens is 79.249 mm, and the maximum field of view FOV of the optical lens is 24.970°.

[0631] Table 89 shows the basic structural parameters of the optical lens of Example 45, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0632] Table 89

[0633]

[0634] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0635] Table 90 below shows the cone coefficient k and various higher-order coefficients that can be used for the aspheric lens surface in this embodiment.

[0636] Table 90

[0637]

[0638] Embodiment 46

[0639] like Fig.46 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0640] The first lens L1 has positive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has positive power, the first side surface S3 of the second lens is convex, and the second side surface S4 of the second lens is convex. The third lens L3 has negative power, the first side surface S5 of the third lens is a plane, and the second side surface S6 of the third lens is a concave surface. The fourth lens L4 has positive power, the first side surface S7 of the fourth lens is convex, and the second side surface S8 of the fourth lens is convex. The fifth lens L5 has negative power, the first side surface S9 of the fifth lens is convex, and the second side surface S10 of the fifth lens is concave. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0641] In this embodiment, the focal length F of the optical lens is 34.750 mm, the total length TTL of the optical lens is 79.511 mm, and the maximum field of view FOV of the optical lens is 24.969°.

[0642] Table 91 shows the basic structural parameters of the optical lens of Example 46, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are both millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0643] Table 91

[0644]

[0645] In this embodiment, the first side surface S1 of the first lens, the second side surface S2 of the first lens, the first side surface S7 of the fourth lens, and the second side surface S8 of the fourth lens are aspherical surfaces. The surface shape of each aspherical lens can be defined by, but not limited to, formula (1) in the first embodiment.

[0646] Table 92 below shows the cone coefficient k and the coefficients of various higher-order terms that can be used for the aspheric lens surface in this embodiment.

[0647] Table 92

[0648]

[0649] In summary, Embodiment 1 to Embodiment 46 respectively satisfy the relationships shown in Tables 93-95.

[0650] Table 93

[0651]

[0652] Table 94

[0653]

[0654] Table 95

[0655]

[0656] Tables 96-98 give the focal length F (unit: mm) of the entire group of optical lenses of Examples 1 to 46.

[0657] Table 96

[0658]

[0659] Table 97

[0660]

[0661] Table 98

[0662]

[0663] The present application also provides an electronic device, including the above-mentioned optical lens and an imaging element for converting an optical image formed by the optical lens into an electrical signal. The imaging element may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The electronic device may be an independent imaging device such as a digital camera, or an imaging module integrated in a mobile electronic device such as a mobile phone. The electronic device is equipped with the optical lens described above. Obviously, the embodiments described above are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0664] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0665] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0666] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An optical lens, characterized in that: The optical lens is composed of five lenses, and the optical lens includes the following lenses in order from the first side to the second side along the optical axis: A first lens, wherein the first lens has positive optical power, and a first side surface of the first lens is a convex surface; Second lens; A third lens having negative optical power; The fourth lens; a fifth lens, wherein the first side surface of the fifth lens is a convex surface; The optical lens meets the following requirements: 0.069≤BFL / TTL≤0.15; 3≤F45×BFL / F≤8; 0≤F1 / F≤8; 0≤T23 / T1≤1; 0.3≤D / TTL≤1; 1≤D / D10≤5; Among them, BFL is the optical back focus of the optical lens, TTL is the total optical length of the optical lens, F45 is the combined focal length of the fourth lens and the fifth lens, F is the focal length of the optical lens, F1 is the focal length of the first lens, T23 is the air gap between the second lens and the third lens on the optical axis, T1 is the center thickness of the first lens, D is the maximum light clearance of the first side surface of the first lens corresponding to the maximum field of view of the optical lens; D10 is the maximum light clearance of the second side surface of the fifth lens corresponding to the maximum field of view of the optical lens.

2. The optical lens according to claim 1, characterized in that: The second side surface of the first lens is a convex surface; or The second side surface of the first lens is a plane; or The second side surface of the first lens is a concave surface.

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

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

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

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

7. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 45≤(FOV×F) / H≤65;1≤F / H≤5; Wherein, FOV is the field of view of the optical lens, F is the focal length of the optical lens, and H is the image height of the optical lens.

8. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 1.653≤TTL / F≤4.5; 0.143≤TTL / H / FOV≤0.65; 3≤TTL / H / θ≤18; 1.157≤TTL / DMAX≤3; Among them, TTL is the total optical length of the optical lens, F is the focal length of the optical lens, H is the image height of the optical lens, FOV is the field of view of the optical lens, θ is the radian value corresponding to the field of view of the optical lens, and DMAX is the maximum aperture of the optical lens.

9. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies: 0.074≤BFL / TL≤0.2, wherein BFL is the optical back focus of the optical lens, and TL is the distance between the first side surface of the first lens and the second side surface of the fifth lens on the optical axis.

10. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 0.06≤D / H / FOV≤0.2; 2≤D / H / θ≤10; 0.15≤(F×θ) / D≤0.8; 0.088≤D / H / F≤0.3; 0.7≤F / ENPD≤1.5; 0.014≤F / ENPD / D≤0.05; 0.5≤DST / F≤2.5; Among them, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view angle of the optical lens, H is the image height of the optical lens, FOV is the field of view angle of the optical lens, θ is the radian value corresponding to the field of view angle of the optical lens, F is the focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, and DST is the aperture diameter of the optical lens.

11. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 1≤D / D7≤5; Wherein, D is the maximum light-clearance diameter of the first side surface of the first lens corresponding to the maximum field angle of the optical lens, and D7 is the maximum light-clearance diameter of the first side surface of the fourth lens corresponding to the maximum field angle of the optical lens.

12. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: -8≤F1 / F3≤0; -50≤F3 / F≤0; Among them, F1 is the focal length of the first lens, F3 is the focal length of the third lens, and F is the focal length of the optical lens.

13. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies: -10≤R10 / F5≤1.5, wherein R10 is the radius of curvature of the second side surface of the fifth lens, and F5 is the focal length of the fifth lens.

14. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies: 0.003≤T34 / TTL≤0.2, wherein T34 is the air interval between the third lens and the fourth lens on the optical axis, and TTL is the total optical length of the optical lens.

15. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 0.5≤T5 / T4≤4.5; 0.02≤T4 / F≤0.8; Wherein, T5 is the center thickness of the fifth lens, T4 is the center thickness of the fourth lens, and F is the focal length of the optical lens.

16. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies: -2≤R6 / R7≤8, wherein R6 is the radius of curvature of the second side surface of the third lens, and R7 is the radius of curvature of the first side surface of the fourth lens.

17. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 0.5≤R1 / F≤8; 0.2≤R9 / F≤5; 0.002≤|(|R8|-|R9|) / (|R8|+|R9|)|≤1.2; Among them, R1 is the curvature radius of the first side surface of the first lens, F is the focal length of the optical lens, R9 is the curvature radius of the first side surface of the fifth lens, and R8 is the curvature radius of the second side surface of the fourth lens.

18. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies: 0.1≤(T1+T2) / TTL≤0.55, wherein T1 is the center thickness of the first lens, T2 is the center thickness of the second lens, and TTL is the total optical length of the optical lens.

19. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies: 0.003≤T12 / D≤0.5, wherein T12 is the air interval between the first lens and the second lens on the optical axis, and D is the maximum aperture of the first side surface of the first lens corresponding to the maximum field angle of the optical lens.

20. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies: 20≤arctan(1 / K(S9))≤65, wherein arctan(1 / K(S9)) is the opening angle of the first side surface of the fifth lens.

21. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 0≤T23×BFL / F4≤2.1; 0≤T23 / F≤0.3; Among them, T23 is the air space between the second lens and the third lens on the optical axis, BFL is the optical back focus of the optical lens, F4 is the focal length of the fourth lens, and F is the focal length of the optical lens.

22. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 0.794≤|F4 / F|≤4.5; 1.297≤|F2 / F|≤18; 0.571≤|F5 / F|≤15 Among them, F4 is the focal length of the fourth lens, F is the focal length of the optical lens, F2 is the focal length of the second lens, and F5 is the focal length of the fifth lens.

23. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 50≤(FOV×F) / H≤60; 1.653≤TTL / F≤3; 0.143≤TTL / H / FOV≤0.45; 5≤TTL / H / θ≤15; 1.157≤TTL / DMAX≤1.84; 0.2≤(F×θ) / D≤0.5; 0.09≤D / H / FOV≤0.2; 4≤D / H / θ≤9; 0.088≤D / H / F≤0.25; 0.069≤BFL / TTL≤0.13; 0.074≤BFL / TL≤0.15; 1.5≤F / H≤3; 0.7≤F / ENPD≤1.4; 0.014≤F / ENPD / D≤0.03; 0.8≤DST / F≤1.5; 1.5≤D / D10≤4; 1≤F1 / F≤6; -5≤F1 / F3≤-0.05; -8≤R10 / F5≤1; 0≤T23 / T1≤0.9; 0.6≤T5 / T4≤3.5; -1≤R6 / R7≤5; 0.45≤D / TTL≤0.9; 0.8≤R1 / F≤5; 0.35≤R9 / F≤1.5; 0.15≤(T1+T2) / TTL≤0.5; 0.05≤T4 / F≤0.65; 0.003≤T12 / D≤0.3; 0.002≤|(|R8|-|R9|) / (|R8|+|R9|)|≤0.8; 25≤arctan(1 / K(S9)))≤60; 1.5≤D / D7≤4; -35≤F3 / F≤-0.95; -6≤F3 / F≤0; 0.794≤|F4 / F|≤3.5; 1.297≤ |F2 / F|≤16; 1.297≤|F5 / F|≤13; 3≤F1 / F≤5; 1≤F1 / F≤2; Wherein, FOV is the field of view of the optical lens, F is the focal length of the optical lens, H is the image height of the optical lens, TTL is the total optical length of the optical lens, θ is the radian value corresponding to the field of view of the optical lens, DMAX is the maximum light clearance of the optical lens, D is the maximum light clearance of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, BFL is the optical back focus of the optical lens, TL is the distance between the first side surface of the first lens and the second side surface of the fifth lens on the optical axis, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, D10 is the maximum light clearance of the second side surface of the fifth lens corresponding to the maximum field of view of the optical lens, arctan(1 / K(S9)) is the opening angle of the first side surface of the fifth lens, and D7 is the maximum light clearance of the first side surface of the fourth lens corresponding to the maximum field of view of the optical lens. Aperture F1 is the focal length of the first lens, F2 is the focal length of the second lens, F3 is the focal length of the third lens, F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, R1 is the radius of curvature of the first side surface of the first lens, R6 is the radius of curvature of the second side surface of the third lens, R7 is the radius of curvature of the first side surface of the fourth lens, R8 is the radius of curvature of the second side surface of the fourth lens, R9 is the radius of curvature of the first side surface of the fifth lens, R10 is the radius of curvature of the second side surface of the fifth lens, T1 is the center thickness of the first lens, T12 is the air gap between the first lens and the second lens on the optical axis, T1 is the center thickness of the first lens, T2 is the center thickness of the second lens, T23 is the air gap between the second lens and the third lens on the optical axis, T4 is the center thickness of the fourth lens, and T5 is the center thickness of the fifth lens.

24. The optical lens according to any one of claims 1 to 6, characterized in that: The optical lens satisfies at least one of the following conditions: 52.564≤(FOV×F) / H≤58.513;1.653≤TTL / F≤2.608; 0.143≤TTL / H / FOV≤0.238; 8.21≤TTL / H / θ≤13.631; 1.157≤TTL / DMAX≤1.645; 0.274≤(F×θ) / D≤0.317; 0.121≤D / H / FOV≤0.146; 6.953≤D / H / θ≤8.342; 0.088≤D / H / F≤0.12; 0.069≤BFL / TTL≤0.116; 0.074≤BFL / TL≤0.131; 2.106≤F / H≤2.343; 0.7≤F / ENPD≤1.392; 0.014≤F / ENPD / D≤0.029; 1.009≤DST / F≤1.398; 2.275≤D / D10≤2.788; 3.461≤F45×BFL / F≤6.217; <h2 style=";text-align:left;direction:ltr">1.483≤F1 / F≤4.651;-3.796≤F1 / F3≤-0.113;-5.079≤R10 / F5≤0.71; <h2 style=";text-align:left;direction:ltr"> 0≤T23 / T1≤0.835;0.003≤T34 / TTL≤0.193; <h2 style=";text-align:left;direction:ltr"> 0.782≤T5 / T4≤2.208; <h2 style=";text-align:left;direction:ltr"> -0.487≤R6 / R7≤1.69;0.608≤D / TTL≤0.865;1.205≤R1 / F≤3.392; <h2 style=";text-align:left;direction:ltr"> 0.478≤R9 / F≤0.901;0.216≤(T1+T2) / TTL≤0.38;0.09≤T4 / F≤0.499; <h2 style=";text-align:left;direction:ltr"> 0.003≤T12 / D≤0.115;0.002≤|(|R8|-|R9|) / (|R8|+|R9|)|≤0.576; <h2 style=";text-align:left;direction:ltr"> 30.453≤arctan(1 / K(S9))≤55.45;2.275≤D / D7≤2.788; <h2 style=";text-align:left;direction:ltr"> 0≤T23 / F≤0.244;0≤T23×BFL / F4≤2.032;-28.021≤F3 / F≤-0.968; <h2 style=";text-align:left;direction:ltr"> 0.794≤|F4 / F|≤2.929; <h2 style=";text-align:left;direction:ltr"> 1.297≤|F2 / F|≤15.501; 0.571≤|F5 / F|≤12.074; Wherein, FOV is the field of view of the optical lens, F is the focal length of the optical lens, H is the image height of the optical lens, TTL is the total optical length of the optical lens, θ is the radian value corresponding to the field of view of the optical lens, DMAX is the maximum light clearance aperture of the optical lens, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view angle of the optical lens, BFL is the optical back focus of the optical lens, TL is the distance between the first side surface of the first lens and the second side surface of the fifth lens on the optical axis, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, D10 is the maximum light clearance aperture of the second side surface of the fifth lens corresponding to the maximum field of view angle of the optical lens, arctan(1 / K(S9)) is the opening angle of the first side surface of the fifth lens, D7 is the maximum light clearance aperture of the first side surface of the fourth lens corresponding to the maximum field of view angle of the optical lens, F1 is the focal length of the first lens, and F2 is the aperture of the second lens. focal length, F3 is the focal length of the third lens, F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, F45 is the combined focal length of the fourth lens and the fifth lens, R1 is the curvature radius of the first side surface of the first lens, R6 is the curvature radius of the second side surface of the third lens, R7 is the curvature radius of the first side surface of the fourth lens, R8 is the curvature radius of the second side surface of the fourth lens, R9 is the curvature radius of the first side surface of the fifth lens, R10 is the curvature radius of the second side surface of the fifth lens, T1 is the center thickness of the first lens, T12 is the air gap between the first lens and the second lens on the optical axis, T1 is the center thickness of the first lens, T2 is the center thickness of the second lens, T23 is the air gap between the second lens and the third lens on the optical axis, T34 is the air gap between the third lens and the fourth lens on the optical axis, T4 is the center thickness of the fourth lens, and T5 is the center thickness of the fifth lens.

25. An electronic device, characterized in that: The invention comprises the optical lens according to any one of claims 1 to 24 and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

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