Optical lenses and electronic devices

Abstract

The present invention provides an optical lens and an electronic device. The optical lens includes a first lens to a fifth lens, the first lens has a negative optical focal length, and its first side surface and second side surface are both concave surfaces; the second lens has a positive optical focal length, its first side surface is a convex surface, and its second side surface is a concave surface; the third lens has a positive optical focal length, its first side surface is a convex surface, and its second side surface is a convex surface; the fifth lens has a positive optical focal length; the optical lens satisfies: (d2+d4) / TL≤0.08, |F1 / F|≤0.8; wherein d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F1 is the focal length of the first lens, and F is the focal length of the optical lens. The present invention solves the problem that the optical lens in the prior art has high resolution, long back focus, miniaturization, and small telecentricity that are difficult to take into account at the same time.

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 scenes, especially optical lenses used for projection, which have been gradually diversified in daily life, such as optical lenses installed in projectors and picture generation units (PGU). However, with the development of digital micromirror devices (DMD) and off-axis optical projection systems (Liquid Crystal on Silicon, LCOS), the requirements for optical lenses used for projection are gradually increasing, and optical lenses are developing towards miniaturization while ensuring high imaging performance.

[0003] Especially for the optical lens of car projection, the requirements for imaging performance are higher. Since the optical lens of car projection is usually used by the driver during driving, if the resolution of the optical lens does not match the resolution of the chip, the display will be unclear, affecting the driver's driving and even causing the driver to misjudge. However, the resolution of existing optical lenses is not high and cannot match the resolution of rapidly developing chips. In addition, the existing optical lenses have insufficient telecentricity, which easily causes waste of light efficiency. At the same time, the back focus is not long enough, and a prism is required to supplement the back focus length, which makes it difficult to miniaturize the optical lens.

[0004] In other words, the optical lens in the prior art has the problem of being difficult to achieve high resolution, long back focus, miniaturization, and low telecentricity 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 that the optical lens in the prior art has high resolution, long back focus, miniaturization and low telecentricity and is difficult to achieve at the same time.

[0006] To achieve the above-mentioned object, 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 having negative optical power, a first side surface of the first lens being a concave surface, and a second side surface of the first lens being a concave surface; a second lens, the second lens having positive optical power, a first side surface of the second lens being a convex surface, and a second side surface of the second lens being a concave surface; a third lens, the third lens having positive optical power, a first side surface of the third lens being a convex surface, and a second side surface of the third lens being a convex surface; a fourth lens, the fourth lens having optical power; a fifth lens, the fifth lens having positive optical power; the optical lens satisfies: (d2+d4) / TL≤0.08, |F1 / F|≤0.8; wherein d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F1 is the focal length of the first lens, and F is the focal length of the optical lens.

[0007] Further, the fourth lens has positive optical power, the first side surface of the fourth lens is concave, and the second side surface of the fourth lens is convex; or the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is convex; or the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is flat.

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

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

[0010] Furthermore, the optical lens satisfies: (FOV×F) / H≥50; 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.

[0011] Furthermore, the optical lens satisfies at least one of the following conditional expressions: TTL / F≤4.5; TTL / H / FOV≤0.5; TTL / H / θ≤20; TTL / DMAX≤4.5; (F×θ) / D≥0.15; D / H / FOV≤0.1; D / H / θ ≤3.5; D / H / F≤0.3; 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, DMAX is the maximum light clearance aperture of the optical lens, and D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens.

[0012] Furthermore, the optical lens satisfies at least one of the following conditional formulas: BFL / TTL≥0.28; BFL / TL≥0.3; wherein TTL is the total optical length 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, and BFL is the optical back focus of the optical lens.

[0013] Furthermore, the optical lens satisfies: 1≤F / H≤4; wherein F is the focal length of the optical lens, and H is the image height of the optical lens.

[0014] Furthermore, the optical lens satisfies at least one of the following conditional formulas: F / ENPD≤3; F / ENPD / D≤0.5; DST / F≥0.4; wherein F is the focal length of the optical lens, D is the maximum clear aperture of the first side surface of the first lens corresponding to the maximum field of view of the optical lens, ENPD is the entrance pupil diameter of the optical lens, and DST is the aperture diameter of the optical lens.

[0015] Further, the optical lens satisfies at least one of the following conditional expressions: 0.2≤|F4 / F5|≤65; 1≤|F4 / F|≤150; F5 / F≤6; wherein F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, and F is the focal length of the optical lens.

[0016] Furthermore, the optical lens satisfies: 0.35≤|R1 / F|≤2, wherein R1 is the radius of curvature of the first side surface of the first lens, and F is the focal length of the optical lens.

[0017] Furthermore, the optical lens satisfies: L123 / TTL≤0.35; wherein L123 is the distance from the first side surface of the first lens to the second side surface of the third lens on the optical axis, and TTL is the total optical length of the optical lens.

[0018] Further, the optical lens satisfies: |F123 / F|≥2.5; wherein F123 is the combined focal length of the first lens, the second lens and the third lens, and F is the focal length of the optical lens.

[0019] Furthermore, the optical lens satisfies: D123 / D45≤1; wherein D123 is the maximum light-clearance diameter among the first lens to the third lens, and D45 is the maximum light-clearance diameter among the fourth lens and the fifth lens.

[0020] Furthermore, the optical lens satisfies: 0≤F2 / F≤4; wherein F2 is the focal length of the second lens, and F is the focal length of the optical lens.

[0021] Furthermore, the optical lens satisfies: F3 / F≤3; wherein F3 is the focal length of the third lens, and F is the focal length of the optical lens.

[0022] Furthermore, the optical lens satisfies: -1≤F1 / F2≤0; wherein F1 is the focal length of the first lens, and F2 is the focal length of the second lens.

[0023] Furthermore, the optical lens satisfies: 1≤F2 / F3≤6; wherein F2 is the focal length of the second lens, and F3 is the focal length of the third lens.

[0024] Furthermore, the optical lens satisfies: 0.5≤F45 / F≤3.5; wherein F45 is the combined focal length of the fourth lens and the fifth lens, and F is the focal length of the optical lens.

[0025] Further, the optical lens satisfies: |F45 / F123|≤1; wherein F45 is the combined focal length of the fourth lens and the fifth lens, and F123 is the combined focal length of the first lens, the second lens, and the third lens.

[0026] Further, the optical lens satisfies: |F1 / F123|≤0.7; wherein F123 is the combined focal length of the first lens, the second lens and the third lens, and F1 is the focal length of the first lens.

[0027] Furthermore, the optical lens satisfies: 0.1≤(T34+T45) / TTL≤0.8; wherein T34 is the distance between the third lens and the fourth lens on the optical axis, T45 is the distance between the fourth lens and the fifth lens on the optical axis, and TTL is the total optical length of the optical lens.

[0028] Furthermore, the optical lens satisfies at least one of the following conditional expressions: (FOV×F) / H≥55; TTL / F≤4.2; TTL / H / FOV≤0.4; TTL / H / θ≤15; TTL / DMAX≤4; (F×θ) / D≥0.4; D / H / FOV≤0.05; D / H / θ≤2.5; D / H / F≤0.1; BFL / TTL≥0.3; BFL / TL≥0.45; 1.2≤F / H≤2.5; F / ENPD≤2.6; F / ENPD / D≤0.4; DST / F≥0.5; 0.4≤|F4 / F5|≤6 0; 0.4≤|R1 / F|≤1; L123 / TTL≤0.3; (d2+d4) / TL≤0.04; |F123 / F|≥3; |F1 / F|≤0.6; 1.4≤F2 / F≤3; F3 / F≤2; -0.5≤F1 / F2≤0; 1.5≤F2 / F3≤5; 0.8≤F45 / F≤2; |F45 / F123|≤0.5; |F1 / F123|≤0.35; 1.5≤|F4 / F|≤120; F5 / F≤4; 0.15≤(T34+T45) / TTL≤0.5; where 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 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, 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, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, R1 is the curvature radius of the first side surface of the first lens, L123 is the distance from the first side surface of the first lens to the second side surface of the fifth lens. The distance of the second side surface of the third lens on the optical axis, d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F45 is the combined focal length of the fourth lens and the fifth lens, F123 is the combined focal length of the first lens, the second lens and the third lens, T34 is the distance between the third lens and the fourth lens on the optical axis, and T45 is the distance between the fourth lens and the fifth lens on the optical axis.

[0029] Further, the optical lens satisfies at least one of the following conditional expressions: 58.18≤(FOV×F) / H≤61.449; 3.411≤TTL / F≤4.162; 0.206≤TTL / H / FOV≤0.242; 11.816≤TTL / H / θ≤13.877; 2.993≤TTL / DMAX≤3.53; 0.926≤(F×θ) / D≤1.061; 0.03≤D / H / FOV≤0.038; 1.695≤D / H / θ≤2.195 ;0.07≤D / H / F≤0.076;0.347≤BFL / TTL≤0.383;0.531≤BFL / TL≤0.62;1.757≤F / H≤2.033; 2.453≤F / ENPD≤2.473; 0.294≤F / ENPD / D≤0.328; 0.554≤DST / F≤0.6 59;0.479≤|F4 / F5|≤56.05;0.472≤|R1 / F|≤0.628;0.182≤L123 / TTL≤0.235;0 ≤(d2+d4) / TL≤0.022; 3.604≤|F123 / F|≤139.894; 0.4854≤D123 / D45≤0.6453; 0.403≤|F1 / F|≤0.467; 1.583≤F2 / F≤2.698; 0.563≤F3 / F≤0.744; -0.272≤F1 / F2≤-0.172; 2.234≤F2 / F3≤4.072; 1.413≤F45 / F≤1.7 22; 0.011≤|F45 / F123|≤0.392; 0.003≤|F1 / F123|≤0.114; 1.89≤|F4 / F|≤92.707; 1.351≤F5 / F≤3.942; 0.174≤(T34+T45) / TTL≤0.257; 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, 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, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, R1 is the curvature radius of the first side surface of the first lens, and L123 is the distance between the first side surface of the first lens and the second side surface of the third lens on the optical axis. , d2 is the distance between the first lens and the second lens on the optical axis, d4 is the distance between the second lens and the third lens on the optical axis, 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, F45 is the combined focal length of the fourth lens and the fifth lens, F123 is the combined focal length of the first lens, the second lens and the third lens, D123 is the maximum clear aperture of the first lens to the third lens, D45 is the maximum clear aperture of the fourth lens and the fifth lens, T34 is the distance between the third lens and the fourth lens on the optical axis, and T45 is the distance between the fourth lens and the fifth lens on the optical axis. .

[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 to set the first lens to have a negative optical power, and the first side surface of the first lens is a concave surface, and the second side surface of the first lens is a concave surface. Setting the first lens to have a negative optical power can diffuse the light, so that the central light and the edge light of the field of view are dispersed, so that the subsequent optical system can have a larger light receiving surface. The first side surface and the second side surface of the fourth lens are both concave surfaces, so that the light has a divergent trend after passing through the first side surface and the second side surface of the first lens, and the edge light of the field of view is further distinguished from the central light, which is conducive to correcting the aberration of the edge light and the central light.

[0032] 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 is set to have positive focal power so that the second lens can converge the light, and at the same time, with the first lens having negative focal power, the large field of view light diverged by the first lens can be converged and compressed into the rear optical system, avoiding excessive outward deflection of the light and causing the loss of imaging light at the edge, so that the optical lens has a large field of view and improves the edge resolution. Setting the first side of the second lens to be convex can converge the light diverged by the first lens to the rear optical system, which is conducive to reducing the loss of light energy. At the same time, setting the second side of the second lens to be concave can diffuse the light converged by the first side of the second lens, so that the light smoothly transitions and reaches a higher imaging position, which is not only conducive to reducing distortion and reducing the sensitivity of the optical lens, but also can ensure the large field of view performance of the optical lens while improving the resolution.

[0033] The third lens is set to have positive focal power, and the first side surface of the third lens is convex, and the second side surface of the third lens is convex. The third lens is set to have positive focal power to further converge the light and compress the light path, so as to reduce the total length of the optical lens. At the same time, the first side surface and the second side surface of the third lens are both set to convex, so that the light is converged when passing through the first side surface and the second side surface of the third lens, which is conducive to the smooth transition of the light to the rear optical system, and is conducive to the preliminary aberration correction of the incident light, reducing the sensitivity of the optical lens, and can also make the light turn and gather, which is conducive to reducing the rear port diameter and miniaturization of the optical lens.

[0034] Optionally, the fourth lens may have positive focal power, and the first side surface of the fourth lens is concave, and the second side surface of the fourth lens is convex. Setting the fourth lens to have positive focal power can converge the light emitted from the third lens, which is beneficial to the smooth transmission of the light in the rear optical system, avoiding large-angle deflection of the light, and facilitating the realization of a small CRA (Chief Ray Angle). Setting the first side surface of the fourth lens to be concave is beneficial to receiving the light emitted by the third lens and diffusing the light converged by the second lens and the third lens, so that the light can reach a higher imaging position. Setting the second side surface of the fourth lens to be convex can converge the light in front of it, which is beneficial to the smooth transition of the light in front to the rear optical system, and is beneficial to the realization of a long back focus.

[0035] Optionally, the fourth lens may have positive focal power, and the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is convex. Setting the fourth lens to have positive focal power can converge the light emitted from the third lens, which is beneficial to the smooth transmission of the light in the rear optical system, avoiding large-angle deflection of the light, and is beneficial to achieving a small CRA. Setting the first side surface and the second side surface of the fourth lens to be convex can enhance the convergence of light, reduce the height of the light incident on the rear optical system, and converge more light, which is beneficial to achieving a small CRA.

[0036] Optionally, the fourth lens may have positive focal power, and the first side surface of the fourth lens is a convex surface, and the second side surface of the fourth lens is a plane. Setting the fourth lens to have positive focal power can converge the light emitted from the third lens, which is beneficial to the smooth transmission of the light in the rear optical system, avoiding large-angle deflection of the light, and is beneficial to achieving a small CRA. The first side surface of the fourth lens is a convex surface, which can converge the light entering the first side surface of the fourth lens, which is beneficial to the smooth transmission of the light to the rear optical system, and the second side surface of the fourth lens is set to a plane to play the role of transitioning the light to the rear optical system.

[0037] Optionally, the fourth lens may have a negative optical power, and the first side surface of the fourth lens is a concave surface, and the second side surface of the fourth lens is a concave surface. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is beneficial to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. Setting both the first side surface and the second side surface of the fourth lens to be concave surfaces is beneficial to strengthening the diffusion effect of light to correct the aberrations caused by too many positive lenses.

[0038] Optionally, the fourth lens may have a negative optical focal length, and the first side of the fourth lens is a convex surface, and the second side of the fourth lens is a concave surface. The fourth lens is set to have a negative optical focal length, and the light converged by the second lens and the third lens is diffused, so that the light can reach a higher imaging position, so that the subsequent optical system has a larger light receiving surface, which is conducive to reducing aberrations and improving the optical performance of the optical lens when the optical focal length is reasonably distributed. The first side of the fourth lens is set to a convex surface, which is convenient for collecting the light of the third lens, and is conducive to the convergence of light, so that the light trend is smoothly transferred to the rear optical system, reducing the height of the light incident to the rear, which is conducive to reducing the aperture of the rear optical system. The second side of the fourth lens is set to a concave surface, and the light entering through the first side of the fourth lens is gently diverged to increase the back focus.

[0039] Optionally, the fourth lens may have a negative optical power, and the first side of the fourth lens is a concave surface, and the second side of the fourth lens is a convex surface. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is beneficial to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. The first side of the fourth lens is a concave surface, which can slightly diverge the excessively converged light in the front, which is beneficial to correcting aberrations. Setting the second side of the fourth lens to a convex surface can play a role in converging light to the rear optical system, which is beneficial to the smooth transmission of light to the rear optical system.

[0040] Optionally, the fourth lens may have a negative optical power, and the first side of the fourth lens is a concave surface, and the second side of the fourth lens is a plane. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is beneficial to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. The first side of the fourth lens is a concave surface, which can slightly diverge the excessively converged light in front, which is beneficial to correct aberrations. Setting the second side of the fourth lens to a plane is beneficial to the smooth transition of light to the rear optical system.

[0041] Optionally, the fourth lens may have a negative optical power, and the first side of the fourth lens is a plane, and the second side of the fourth lens is a concave surface. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is beneficial to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. Setting the first side of the fourth lens to be a plane is beneficial to the smooth transition of light, and at the same time, the second side of the fourth lens is set to be a concave surface, which can diverge the light and help increase the back focus.

[0042] Optionally, the fifth lens may have positive power, the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is convex. The fifth lens is set to have positive power to converge the light emitted by the fourth lens, which is conducive to the smooth transition of the light, and at the same time, it is combined with the fourth lens to achieve a small CRA. The first side surface and the second side surface of the fifth lens are both convex, which can increase the convergence effect of the light and make the light smoothly transition to the imaging surface.

[0043] Optionally, the fifth lens may have positive power, the first side of the fifth lens is a convex surface, and the second side of the fifth lens is a plane. The fifth lens is set to have positive power, and the first side of the fifth lens is a convex surface, which can further converge the light emitted by the fourth lens, which is conducive to the smooth transition of light, and at the same time, it is combined with the fourth lens to achieve a small CRA. The second side of the fifth lens is set to be a plane, which plays the role of transitioning light to the imaging surface.

[0044] Optionally, the fifth lens may have positive power, the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is concave. Setting the fifth lens to have positive power and the first side surface of the fifth lens to be convex can further converge the light emitted by the fourth lens, which is conducive to a smooth transition of the light, and at the same time, cooperate with the fourth lens to achieve a small CRA. Setting the second side surface of the fifth lens to be concave can diverge the excessively converged light of the front optical system, which is conducive to a smooth transition of the light to the imaging surface and a small CRA.

[0045] Optionally, the fifth lens may have positive power, the first side of the fifth lens is a plane, and the second side of the fifth lens is a convex surface. The fifth lens is set to have positive power to converge the light emitted by the fourth lens, which is conducive to the smooth transition of light, and at the same time, it is combined with the fourth lens to achieve a small CRA. The first side of the fifth lens is set to be a plane, which plays the role of transitioning light to the rear optical system, and the second side is a convex surface, which is conducive to the smooth transition of light to the imaging surface.

[0046] Optionally, the fifth lens may have positive focal power, the first side surface of the fifth lens is concave, and the second side surface of the fifth lens is convex. The fifth lens is set to have positive focal power to converge the light emitted by the fourth lens, which is conducive to a smooth transition of the light, and at the same time, it is combined with the fourth lens to achieve a small CRA. The first side surface of the fifth lens is set to be a concave surface to diverge the light emitted by the fourth lens, avoid excessive convergence of the light, and facilitate a smooth transition of the light to the rear optical system. At the same time, the second side surface is a convex surface, which converges the light and is conducive to shortening the total optical length.

[0047] In some optional embodiments, the optical lens satisfies: (d2+d4) / TL≤0.08, |F1 / F|≤0.8; wherein d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F1 is the focal length of the first lens, and F is the focal length of the optical lens.

[0048] By limiting (d2+d4) / TL≤0.08, |F1 / F|≤0.8 within a reasonable range, the proportion of the air gap between the first lens and the second lens and the proportion of the air gap between the second lens and the third lens can be controlled, so that the structure of the optical lens is more compact. At the same time, the light is converged twice when passing through the second lens and the third lens, which is conducive to a more compact transition of the light to the imaging surface, and is conducive to the miniaturization of the optical lens while ensuring the imaging performance of the optical lens. In addition, when the focal length F1 of the first lens is a negative value, and it is matched with the second lens and the third lens with positive focal power, the purpose of correcting aberrations can be achieved, which is conducive to improving the resolution of the optical lens. At the same time, the proportion of the focal length of the first lens in the focal length of the entire optical system is controlled within a smaller range, which can avoid the first lens from excessively diverging the light, so that the first lens can achieve the correction of aberrations while slightly diffusing the light, so that the light can smoothly transition to the rear optical system, which is conducive to the miniaturization of the optical lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 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:

[0050] Figure 1 A cross-sectional view of an optical lens according to a first embodiment of the present invention is shown;

[0051] Figure 2 A cross-sectional view of an optical lens according to a second embodiment of the present invention is shown;

[0052] Figure 3 A cross-sectional view of an optical lens according to a third embodiment of the present invention is shown;

[0053] Figure 4 A cross-sectional view of an optical lens according to a fourth embodiment of the present invention is shown;

[0054] Figure 5 A cross-sectional view of an optical lens according to a fifth embodiment of the present invention is shown;

[0055] Figure 6 A cross-sectional view of an optical lens according to a sixth embodiment of the present invention is shown;

[0056] Figure 7 A cross-sectional view of an optical lens according to a seventh embodiment of the present invention is shown;

[0057] Figure 8 A cross-sectional view of an optical lens according to Embodiment 8 of the present invention is shown;

[0058] Fig. 9 A cross-sectional view of an optical lens according to a ninth embodiment of the present invention is shown;

[0059] Fig.10 A cross-sectional view of an optical lens according to a tenth embodiment of the present invention is shown;

[0060] Fig.11 A cross-sectional view of an optical lens according to an eleventh embodiment of the present invention is shown;

[0061] Fig.12 A cross-sectional view of an optical lens according to a twelfth embodiment of the present invention is shown;

[0062] Fig.13 A cross-sectional view of an optical lens according to a thirteenth embodiment of the present invention is shown;

[0063] Fig.14 A cross-sectional view of an optical lens according to a fourteenth embodiment of the present invention is shown;

[0064] Fig.15 A cross-sectional view of an optical lens according to a fifteenth embodiment of the present invention is shown;

[0065] Fig.16 A cross-sectional view of an optical lens according to a sixteenth embodiment of the present invention is shown;

[0066] Fig.17 A cross-sectional view of an optical lens according to a seventeenth embodiment of the present invention is shown;

[0067] Fig.18 shows a cross-sectional view of an optical lens according to Embodiment 18 of the present invention;

[0068] Fig.19 A cross-sectional view of an optical lens according to a nineteenth embodiment of the present invention is shown;

[0069] Fig. 20 A cross-sectional view of an optical lens according to Embodiment 20 of the present invention is shown;

[0070] Fig.21 A cross-sectional view of an optical lens according to Embodiment 21 of the present invention is shown;

[0071] Fig. 22 shows a cross-sectional view of an optical lens according to Embodiment 22 of the present invention;

[0072] Fig.23 A cross-sectional view of an optical lens according to Embodiment 23 of the present invention is shown;

[0073] Fig.24 A cross-sectional view of an optical lens according to embodiment 24 of the present invention is shown.

[0074] The above drawings include the following reference numerals:

[0075] STO, aperture; L1, first lens; S1, first side surface of the first lens; S2, second side surface of the first lens; L2, second lens; S3, first side surface of the second lens; S4, second side surface of the second lens; L3, third lens; S5, first side surface of the third lens; S6, second side surface of the third lens; L4, fourth lens; S7, first side surface of the fourth lens; S8, second side surface of the fourth lens; L5, fifth lens; S9, first side surface of the fifth lens; S10, second side surface of the fifth lens; IMA, imaging surface. DETAILED DESCRIPTION

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] In order to solve the problem in the prior art that it is difficult to achieve high resolution, long back focus, miniaturization and low telecentricity in optical lenses, the present invention provides an optical lens and an electronic device.

[0086] In some optional embodiments, the optical lens includes five lenses with optical power, namely a first lens, a second lens, a third lens, a fourth lens and a fifth lens, and the five lenses are sequentially arranged from the first side to the second side along the optical axis.

[0087] In some optional embodiments, the first lens has a negative optical power, and the first side surface of the first lens is a concave surface, and the second side surface of the first lens is a concave surface. Setting the first lens to have a negative optical power can diffuse the light, so that the central light and the edge light of the field of view are dispersed, and the subsequent optical system can have a larger light receiving surface. The first side surface and the second side surface of the fourth lens are both concave surfaces, so that the light has a divergent trend after passing through the first side surface and the second side surface of the first lens, further distinguishing the edge light from the central light of the field of view, which is conducive to correcting the aberration of the edge light and the central light.

[0088] In some optional embodiments, the second lens has positive focal length, and the first side of the second lens is convex, and the second side of the second lens is concave. The second lens is set to have positive focal length so that the second lens can converge the light, and at the same time, with the first lens having negative focal length, the large field of view light diverged by the first lens can be converged and compressed into the rear optical system, avoiding excessive outward deflection of the light and causing the loss of imaging light at the edge, so that the optical lens has a large field of view and improves the edge resolution. The first side of the second lens is set to a convex surface, which can converge the light diverged by the first lens to the rear optical system, which is conducive to reducing the loss of light energy. At the same time, the second side of the second lens is set to a concave surface, and the light converged by the first side of the second lens can be diffused, so that the light is smoothly transferred and reaches a higher imaging position, which is not only conducive to reducing distortion and reducing the sensitivity of the optical lens, but also can ensure the large field of view performance of the optical lens while improving the resolution.

[0089] In some optional embodiments, the third lens has positive focal length, and the first side surface of the third lens is convex, and the second side surface of the third lens is convex. The third lens is set to have positive focal length to further converge the light and compress the light path, so as to reduce the total length of the optical lens, and at the same time, the first side surface and the second side surface of the third lens are both set to be convex, so that the light is converged when passing through the first side surface and the second side surface of the third lens, which is conducive to the smooth transition of the light to the rear optical system, and is conducive to the preliminary aberration correction of the incident light, reducing the sensitivity of the optical lens, and can also make the light turn and gather, which is conducive to reducing the rear port diameter and miniaturization of the optical lens.

[0090] In some optional embodiments, the fourth lens may have a positive focal length, and the first side of the fourth lens is a concave surface, and the second side of the fourth lens is a convex surface. Setting the fourth lens to have a positive focal length can converge the light emitted from the third lens, which is beneficial to the smooth transmission of the light in the rear optical system, avoiding large-angle deflection of the light, and is beneficial to achieving a small CRA (Chief Ray Angle). Setting the first side of the fourth lens to be a concave surface is beneficial to receiving the light emitted by the third lens and diffusing the light converged by the second lens and the third lens, so that the light can reach a higher imaging position. Setting the second side of the fourth lens to be a convex surface can converge the light in front of it, which is beneficial to smoothly transition the light in front to the rear optical system, and is beneficial to achieving a long back focus.

[0091] In some optional embodiments, the fourth lens may have positive focal power, and the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is convex. Setting the fourth lens to have positive focal power can converge the light emitted from the third lens, which is beneficial to the smooth transmission of the light in the rear optical system, avoiding large-angle deflection of the light, and is beneficial to achieving a small CRA. Setting the first side surface and the second side surface of the fourth lens to be convex can enhance the convergence of light, reduce the height of the light incident on the rear optical system, and converge more light, which is beneficial to achieving a small CRA.

[0092] In some optional embodiments, the fourth lens may have positive power, and the first side surface of the fourth lens is a convex surface, and the second side surface of the fourth lens is a plane. The fourth lens is set to have positive power, which can converge the light emitted from the third lens, which is conducive to the smooth transmission of the light in the rear optical system, avoids the light from being deflected at a large angle, and is conducive to achieving a small CRA. The first side surface of the fourth lens is a convex surface, which can converge the light entering the first side surface of the fourth lens, which is conducive to the smooth transmission of the light to the rear optical system, and the second side surface of the fourth lens is set to a plane to play the role of transitioning the light to the rear optical system.

[0093] In some optional embodiments, the fourth lens may have a negative optical power, and the first side surface of the fourth lens is a concave surface, and the second side surface of the fourth lens is a concave surface. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is beneficial to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. Setting both the first side surface and the second side surface of the fourth lens to be concave surfaces is beneficial to strengthening the diffusion effect of light to correct the aberrations caused by too many positive lenses.

[0094] In some optional embodiments, the fourth lens may have a negative optical focal length, and the first side of the fourth lens is a convex surface, and the second side of the fourth lens is a concave surface. The fourth lens is set to have a negative optical focal length, and the light converged by the second lens and the third lens is diffused, so that the light can reach a higher imaging position, so that the subsequent optical system has a larger light receiving surface, which is conducive to reducing aberrations and improving the optical performance of the optical lens when the optical focal length is reasonably distributed. The first side of the fourth lens is set to a convex surface, which is convenient for collecting the light of the third lens, and is conducive to the convergence of light, so that the light trend is smoothly transferred to the rear optical system, reducing the height of the light incident to the rear, which is conducive to reducing the aperture of the rear optical system. The second side of the fourth lens is set to a concave surface, and the light entering through the first side of the fourth lens is gently diverged to increase the back focus.

[0095] In some optional embodiments, the fourth lens may have a negative optical power, and the first side of the fourth lens is a concave surface, and the second side of the fourth lens is a convex surface. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is beneficial to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. The first side of the fourth lens is a concave surface, which can slightly diverge the excessively converged light in the front, which is beneficial to correcting aberrations. Setting the second side of the fourth lens to a convex surface can play a role in converging light to the rear optical system, which is beneficial to the smooth transmission of light to the rear optical system.

[0096] In some optional embodiments, the fourth lens may have a negative optical power, and the first side of the fourth lens is a concave surface, and the second side of the fourth lens is a plane. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is beneficial to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. The first side of the fourth lens is a concave surface, which can slightly diverge the excessively converged light in the front, which is beneficial to correcting aberrations. Setting the second side of the fourth lens to a plane is beneficial to the smooth transition of light to the rear optical system.

[0097] In some optional embodiments, the fourth lens may have a negative optical power, and the first side of the fourth lens is a plane, and the second side of the fourth lens is a concave surface. Setting the fourth lens to have a negative optical power can allow the subsequent optical system to have a larger light receiving surface, which is conducive to reducing aberrations and improving the optical performance of the optical lens when the optical power is reasonably allocated. Setting the first side of the fourth lens to be a plane is conducive to a smooth transition of light, and at the same time, the second side of the fourth lens is set to be a concave surface, which can diverge the light and help increase the back focus.

[0098] In some optional embodiments, the fifth lens may have positive power, the first side surface of the fifth lens is convex, and the second side surface of the fifth lens is convex. The fifth lens is set to have positive power to converge the light emitted by the fourth lens, which is conducive to the smooth transition of the light, and at the same time, it is combined with the fourth lens to achieve a small CRA. The first side surface and the second side surface of the fifth lens are both convex, which can increase the convergence effect of the light and make the light smoothly transition to the imaging surface.

[0099] In some optional embodiments, the fifth lens may have positive power, the first side surface of the fifth lens is a convex surface, and the second side surface of the fifth lens is a plane. The fifth lens is set to have positive power, and the first side surface of the fifth lens is a convex surface, which can further converge the light emitted by the fourth lens, which is conducive to the smooth transition of light, and at the same time, cooperate with the fourth lens to achieve a small CRA. The second side surface of the fifth lens is set to be a plane, which plays the role of transitioning light to the imaging surface.

[0100] In some optional embodiments, the fifth lens may have positive focal 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 focal power, and the first side surface of the fifth lens is convex, which can further converge the light emitted by the fourth lens, which is conducive to the smooth transition of light, and at the same time, cooperate with the fourth lens to achieve a small CRA. The second side surface of the fifth lens is set to be concave, which can diverge the excessively converged light of the front optical system, which is conducive to the smooth transition of light to the imaging surface and the realization of a small CRA.

[0101] In some optional embodiments, the fifth lens may have positive power, the first side of the fifth lens is a plane, and the second side of the fifth lens is a convex surface. The fifth lens is set to have positive power to converge the light emitted by the fourth lens, which is conducive to the smooth transition of light, and at the same time, it is combined with the fourth lens to achieve a small CRA. The first side of the fifth lens is set to be a plane, which plays a role in transitioning light to the rear optical system, and the second side is a convex surface, which is conducive to the smooth transition of light to the imaging surface.

[0102] In some optional embodiments, the fifth lens may have positive focal power, the first side surface of the fifth lens is concave, and the second side surface of the fifth lens is convex. The fifth lens is set to have positive focal power to converge the light emitted by the fourth lens, which is conducive to a smooth transition of the light, and at the same time, it is combined with the fourth lens to achieve a small CRA. The first side surface of the fifth lens is set to be a concave surface to diverge the light emitted by the fourth lens, avoid excessive convergence of the light, and facilitate a smooth transition of the light to the rear optical system. At the same time, the second side surface is a convex surface, which converges the light, which is conducive to shortening the total optical length.

[0103] In some optional embodiments, the optical lens also includes an aperture, which is located between the third lens and the fourth lens, which is beneficial to focusing the light entering the optical system, reducing the lens aperture of the rear optical system, and helping to reduce the sensitivity of the optical system assembly.

[0104] In some optional embodiments, the first side surface of the fourth lens has an inflection point, which can further correct the light and make the light smoothly transition to the next side surface. The inflection can correct the angle of the edge light, reduce the edge field aberration, and improve the resolution.

[0105] In some other optional embodiments, the second side surface of the fourth lens has an inflection point, which can further correct the light and make the light smoothly transition to the next side surface. The inflection can correct the angle of the edge light, reduce the edge field aberration, and improve the resolution.

[0106] In some optional embodiments, any two adjacent lenses among the first lens, the second lens and the third lens can be glued together. The glued lenses 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 the lens to 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 the illumination, and can further reduce the field curvature, and can 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 the resolution, optimize the distortion, CRA and other optical properties. For example, the first lens is glued to the second lens. For another example, the second lens is glued to the third lens. For another example, the first lens, the second lens and the third lens are glued.

[0107] In some optional embodiments, the optical lens satisfies: (d2+d4) / TL≤0.08, |F1 / F|≤0.8; wherein d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F1 is the focal length of the first lens, and F is the focal length of the optical lens.

[0108] By limiting (d2+d4) / TL within the above range, the proportion of the air gap between the first lens and the second lens and the proportion of the air gap between the second lens and the third lens can be controlled, so that the structure of the optical lens is more compact. At the same time, the light is converged twice when passing through the second lens and the third lens, which is conducive to a more compact transition of the light to the imaging surface, and is conducive to the miniaturization of the optical lens while ensuring the imaging performance of the optical lens. In addition, when the focal length F1 of the first lens is a negative value, and it is matched with the second lens and the third lens with positive optical power, the purpose of correcting aberrations can be achieved, which is conducive to improving the resolution of the optical lens. At the same time, the proportion of the focal length of the first lens in the focal length of the entire optical system is controlled within a smaller range, which can avoid the first lens from excessively diverging the light, so that the first lens can achieve the correction of aberrations while slightly diffusing the light, so that the light can smoothly transition to the rear optical system, which is conducive to the miniaturization of the optical lens.

[0109] Preferably, the optical lens can further satisfy: (d2+d4) / TL≤0.04, which is conducive to miniaturization of the optical lens. More preferably, 0≤(d2+d4) / TL≤0.022, so that the optical lens can be further miniaturized.

[0110] Preferably, the optical lens can further satisfy: |F1 / F|≤0.6, which is conducive to the optical lens to achieve high resolution and miniaturization at the same time. More preferably, 0.403≤|F1 / F|≤0.467, so that the optical lens can further achieve high resolution and miniaturization.

[0111] In some optional embodiments, the optical lens satisfies: (FOV×F) / H≥50; 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. This configuration enables the optical lens to simultaneously satisfy both telephoto and large field of view, which helps to improve the central resolution of the optical lens. Preferably, (FOV×F) / H≥55, which is conducive to achieving both telephoto and large field of view. More preferably, 58.18≤(FOV×F) / H≤61.449, which is more conducive to achieving both telephoto and large field of view.

[0112] 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. Such a setting is conducive to reducing the total optical length of the optical lens, and is conducive 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≤4.2 to achieve the miniaturization of the optical lens. More preferably, the optical lens can further satisfy: 3.411≤TTL / F≤4.162, which is conducive to further reducing the size of the optical lens.

[0113] In some optional embodiments, the optical lens satisfies: TTL / H / FOV≤0.5, 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 of view of the optical lens. This arrangement is conducive to the miniaturization of the optical lens while ensuring that the optical lens has a large field of view, especially at the same field of view, the total optical length of the optical lens in this embodiment is smaller. Preferably, the optical lens can further satisfy: TTL / H / FOV≤0.4, so that the optical lens can take into account both a large field of view and miniaturization. More preferably, the optical lens can further satisfy: 0.206≤TTL / H / FOV≤0.242, and the optical lens can further increase the field of view and reduce the total optical length.

[0114] In some optional embodiments, the optical lens satisfies: TTL / H / θ≤20; wherein TTL is the total optical length of the optical lens, H is the image height of the optical lens, and θ is the arc value corresponding to the field angle of the optical lens. Such a setting is conducive to miniaturization of the optical lens while ensuring the image plane of the optical lens, especially at the same field angle, the total optical length of the optical lens in this embodiment is smaller. Preferably, the optical lens can further satisfy: TTL / H / θ≤15, so as to miniaturize the optical lens. More preferably, the optical lens can further satisfy: 11.816≤TTL / H / θ≤13.877, so as to further miniaturize the optical lens.

[0115] In some optional embodiments, the optical lens satisfies: TTL / DMAX≤4.5; wherein TTL is the total optical length of the optical lens, and DMAX is the maximum clear aperture of the optical lens. This arrangement enables the optical lens to reduce the total optical length while ensuring the clear aperture, which is conducive to miniaturization. Ensuring the clear aperture of the optical lens ensures the light throughput of the optical lens, so that the optical lens still has good imaging performance in a dark environment. Preferably, the optical lens can further satisfy: TTL / DMAX≤4, so that the optical lens can be miniaturized. More preferably, the optical lens can further satisfy: 2.993≤TTL / DMAX≤3.53, so as to further miniaturize the optical lens.

[0116] In some optional embodiments, the optical lens satisfies: (F×θ) / D≥0.15; wherein F is the focal length of the optical lens, θ is the arc value corresponding to the field of view angle of the optical lens, and D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view angle of the optical lens. This arrangement can ensure that the optical lens is small while ensuring its field of view angle, reduce the aperture of the object side of the optical lens, and help reduce the head size of the optical lens, thereby facilitating the miniaturization of the optical lens. Preferably, the optical lens can further satisfy: (F×θ) / D≥0.4, so as to miniaturize the optical lens. More preferably, the optical lens can further satisfy: 0.926≤(F×θ) / D≤1.061, so as to further miniaturize the optical lens.

[0117] In some optional embodiments, the optical lens satisfies: D / H / FOV≤0.1; 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, H is the image height of the optical lens, and FOV is the field of view of the optical lens. This arrangement enables the optical lens to reduce the maximum aperture of the first side of the first lens while ensuring the image height, and is conducive to reducing the front end size of the optical lens, thereby facilitating the miniaturization of the optical lens. In particular, under the same image height, the front end size of the optical lens in this embodiment is smaller. Preferably, the optical lens can further satisfy: D / H / FOV≤0.05, so that the optical lens can reduce the size of the optical lens while ensuring the image height. More preferably, the optical lens can further satisfy: 0.03≤D / H / FOV≤0.038, so that the optical lens can further reduce the size of the optical lens while ensuring the image height.

[0118] In some optional embodiments, the optical lens satisfies: D / H / θ ≤3.5; wherein D is the maximum light aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, H is the image height of the optical lens, and θ is the arc value corresponding to the field of view of the optical lens. This arrangement makes the maximum light aperture of the first side of the first lens smaller at a certain field of view, which is conducive to reducing the front end size of the optical lens, thereby realizing the miniaturization of the optical lens. Preferably, the optical lens can further satisfy: D / H / θ≤2.5, which is conducive to reducing the size of the optical lens. More preferably, the optical lens can further satisfy: 1.695≤D / H / θ≤2.19, which is conducive to further reducing the size of the optical lens.

[0119] In some optional embodiments, the optical lens satisfies: D / H / F≤0.3; wherein D is the maximum clear aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, H is the image height of the optical lens, and F is the focal length of the optical lens. Setting the optical lens in this way reduces the front end size of the optical lens while ensuring the field of view angle and focal length, which is conducive to the miniaturization of the optical lens. Relative to optical lenses with the same field of view angle and the same focal length, the front end size of the optical lens in this embodiment is smaller. Preferably, the optical lens can further satisfy: D / H / F≤0.1, which is conducive to reducing the size of the optical lens. More preferably, the optical lens can further satisfy: 0.07≤D / H / F≤0.076, which is conducive to further reducing the size of the optical lens.

[0120] In some optional embodiments, the optical lens satisfies: BFL / TTL≥0.28, wherein TTL is the total optical length of the optical lens, and BFL is the optical back focus of the optical lens. Such a setting is conducive to miniaturization of the optical lens while increasing the back focus, and is conducive to achieving a long back focus, leaving enough space for the addition of other optical devices such as prisms, and facilitating the processing and assembly of the optical lens. Preferably, the optical lens can further satisfy: BFL / TTL≥0.3, which is conducive to the simultaneous miniaturization and long back focus of the optical lens. More preferably, the optical lens can further satisfy: 0.347≤BFL / TTL≤0.383, which is conducive to the simultaneous miniaturization and long back focus of the optical lens.

[0121] In some optional embodiments, the optical lens satisfies: BFL / TL≥0.3, wherein 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, and BFL is the optical back focus of the optical lens. Such a setting is conducive to miniaturization of the optical lens while increasing the back focus, and is conducive to achieving a long back focus, leaving enough space for the addition of other optical devices such as prisms, and facilitating the processing and assembly of the optical lens. Preferably, the optical lens can further satisfy: BFL / TL≥0.45, which is conducive to the optical lens achieving both miniaturization and long back focus. More preferably, the optical lens can further satisfy: 0.531≤BFL / TL≤0.62, which is conducive to the optical lens achieving both miniaturization and long back focus.

[0122] In some optional embodiments, the optical lens satisfies: 1≤F / H≤4; wherein F is the focal length of the optical lens, and H is the image height of the optical lens. This arrangement allows the focal length and image height of the optical lens to restrict each other, so that the focal length and image height of the optical lens are both within a certain range, which is beneficial to improving the resolution of the optical lens. Preferably, the optical lens can further satisfy: 1.2≤F / H≤2.5, which is beneficial to improving the resolution of the optical lens. More preferably, the optical lens can further satisfy: 1.757≤F / H≤2.033, which is beneficial to further improving the resolution of the optical lens.

[0123] In some optional embodiments, the optical lens satisfies: F / ENPD≤3; wherein F is the focal length of the optical lens, and ENPD is the entrance pupil diameter of the optical lens. Such a setting is conducive to controlling the aperture of the optical lens, increasing the light throughput of the optical lens, and further improving the relative illumination of the optical lens, so that the optical lens still has good imaging performance in a dark environment. Preferably, the optical lens can further satisfy: F / ENPD≤2.6, which is conducive to improving the relative illumination of the optical lens. More preferably, the optical lens can further satisfy: 2.453≤F / ENPD≤2.473, which is conducive to further improving the relative illumination of the optical lens.

[0124] In some optional embodiments, the optical lens satisfies: F / ENPD / D≤0.5; wherein F is the focal length of the optical lens, D is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, and ENPD is the entrance pupil diameter of the optical lens. Such a setting is conducive to controlling the aperture of the optical lens, increasing the light throughput of the optical lens, and further improving the relative illumination of the optical lens, so that the optical lens still has good imaging performance in a dark environment. Preferably, the optical lens can further satisfy: F / ENPD / D≤0.4, which is conducive to improving the relative illumination of the optical lens. More preferably, the optical lens can further satisfy: 0.294≤F / ENPD / D≤0.328, which is conducive to further improving the relative illumination of the optical lens.

[0125] In some optional embodiments, the optical lens satisfies: DST / F≥0.4, where F is the focal length of the optical lens and DST is the aperture of the optical lens. Such a setting is conducive to controlling the aperture of the optical lens, increasing the light throughput of the optical lens, improving the relative illumination of the optical lens, and thus improving the imaging performance of the optical lens in a dark environment. Preferably, the optical lens can further satisfy: DST / F≥0.5, which is conducive to improving the light throughput of the optical lens. More preferably, the optical lens can further satisfy: 0.554≤DST / F≤0.659, which is conducive to further improving the light throughput of the optical lens.

[0126] In some optional embodiments, the optical lens satisfies: 0.2≤|F4 / F5|≤65; wherein F4 is the focal length of the fourth lens, and F5 is the focal length of the fifth lens. The focal lengths of the fourth lens and the fifth lens are reasonably allocated so that the light smoothly transitions to the imaging surface, which is conducive to achieving a small CRA. Preferably, the optical lens can further satisfy: 0.4≤|F4 / F5|≤60, which is conducive to achieving a small CRA. More preferably, the optical lens can further satisfy: 0.479≤|F4 / F5|≤56.05, which is conducive to further achieving a small CRA.

[0127] In some optional embodiments, the optical lens satisfies: 1≤|F4 / F|≤150; wherein F4 is the focal length of the fourth lens, and F is the focal length of the optical lens. Reasonably allocating the focal length of the fourth lens so that the light smoothly transitions to the rear optical system is conducive to achieving a small CRA. Preferably, the optical lens can further satisfy: 1.5≤|F4 / F|≤120, which is conducive to achieving a small CRA. More preferably, the optical lens can further satisfy: 1.89≤|F4 / F|≤92.707, which is conducive to further achieving a small CRA.

[0128] In some optional embodiments, the optical lens satisfies: F5 / F≤6; wherein F5 is the focal length of the fifth lens, and F is the focal length of the optical lens. Reasonably allocating the focal length of the fifth lens so that the focal length of the fifth lens is smaller can correct aberrations and improve resolution while maintaining a long back focus. Preferably, the optical lens can further satisfy: F5 / F≤4, which is conducive to achieving a long back focus while improving resolution. More preferably, the optical lens can further satisfy: 1.351≤F5 / F≤3.942, which is conducive to further achieving a long back focus while improving resolution.

[0129] In some optional embodiments, the optical lens satisfies: 0.1≤(T34+T45) / TTL≤0.8; wherein T34 is the distance between the third lens and the fourth lens on the optical axis, T45 is the distance between the fourth lens and the fifth lens on the optical axis, and TTL is the total optical length of the optical lens. Reasonably setting the interval between the third lens and the fourth lens, and the interval between the fourth lens and the fifth lens, to maintain a large interval between the rear lens group, is conducive to correcting the aberrations of the fourth lens and the fifth lens to correct the optical system to achieve high resolution. Preferably, the optical lens can further satisfy: 0.15≤(T34+T45) / TTL≤0.5, which is conducive to achieving long back focus while improving resolution. More preferably, the optical lens can further satisfy: 0.174≤(T34+T45) / TTL≤0.257, which is conducive to further achieving long back focus while improving resolution.

[0130] In some optional embodiments, the optical lens satisfies: 0.35≤|R1 / F|≤2, 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 radius of curvature of the first side of the first lens, it is beneficial to control the deflection ability of light entering the first lens, and the edge light entering the optical lens can be corrected, thereby improving the resolution of the edge light. Preferably, the optical lens can further satisfy: 0.4≤|R1 / F|≤1, which is beneficial to improving the resolution of the edge light of the optical lens. More preferably, the optical lens can further satisfy: 0.472≤|R1 / F|≤0.628, which is beneficial to further improving the resolution of the edge light of the optical lens.

[0131] In some optional embodiments, the optical lens further includes an aperture, and the optical lens satisfies: L123 / TTL≤0.35; wherein L123 is the distance on the optical axis from the first side of the first lens to the second side of the third lens, and TTL is the total optical length of the optical lens. This arrangement makes the structure of the lens group in front of the aperture more compact, and the marginal light has a smaller turning distance in the lens group in front of the aperture, so that the marginal light aberration passing through the lens group in front of the aperture is smaller, which is beneficial to improving the marginal resolution. Preferably, the optical lens can further satisfy: L123 / TTL≤0.3, which is beneficial to improving the resolution of the marginal light of the optical lens. More preferably, the optical lens can further satisfy: 0.182≤L123 / TTL≤0.235, which is beneficial to further improving the resolution of the marginal light of the optical lens.

[0132] In some optional embodiments, the optical lens further includes an aperture, and the optical lens satisfies: |F123 / F|≥2.5; wherein F123 is the combined focal length of the first lens, the second lens, and the third lens, and F is the focal length of the optical lens. By rationally allocating the focal length of the lens group in front of the aperture, it is helpful to control the smooth transition of light in the lens in front of the aperture, so as to reduce the sensitivity of the lens group in front of the aperture, and at the same time, it is helpful to achieve a small telecentricity in conjunction with the lens group behind the aperture. Preferably, the optical lens can further satisfy: |F123 / F|≥3, so as to achieve a small telecentricity while reducing the sensitivity. More preferably, the optical lens can further satisfy: 3.604≤|F123 / F|≤139.894, so as to further achieve a small telecentricity.

[0133] In some optional embodiments, the optical lens further includes an aperture, and the optical lens satisfies: D123 / D45≤1; wherein D123 is the maximum aperture of the first lens to the third lens, and D45 is the maximum aperture of the fourth lens and the fifth lens. By setting the maximum aperture of the lens group before the aperture to be smaller than the maximum aperture of the lens group after the aperture, it is beneficial for more marginal light to enter the lens group after the aperture. At the same time, due to the large focal length of the lens group before the aperture, the light entering the lens group after the aperture is relatively gentle, so that the degree of freedom of light adjustment behind the aperture becomes larger, which is beneficial to increase the degree of freedom of lens design after the aperture, and is beneficial to small telecentricity. Preferably, the optical lens can further satisfy: 0.486≤D123 / D45≤0.645, which is beneficial to achieve small telecentricity.

[0134] In some optional embodiments, the optical lens satisfies: 0≤F2 / F≤4; wherein F2 is the focal length of the second lens, and F is the focal length of the optical lens. By controlling the optical power and focal length of the second lens, it is beneficial for the second lens to converge the light diverged by the first lens to the third lens, so as to make the front optical system more compact, so that the optical lens can achieve high resolution and miniaturization at the same time. Preferably, the optical lens can further satisfy: 1.4≤F2 / F≤3, which is conducive to miniaturization. More preferably, the optical lens can further satisfy: 1.583≤F2 / F≤2.698, which is conducive to further miniaturization.

[0135] In some optional embodiments, the optical lens satisfies: F3 / F≤3; wherein F3 is the focal length of the third lens, and F is the focal length of the optical lens. By controlling the optical power and focal length of the third lens, the third lens further converges the light, compresses the light of a large field of view, improves the resolution of the edge light, and makes the light trend compact, which is conducive to reducing the size of the front optical system and facilitating miniaturization. Preferably, the optical lens can further satisfy: F3 / F≤2, so that the optical lens can be miniaturized while improving the resolution. More preferably, the optical lens can further satisfy: 0.563≤F3 / F≤0.744, so that the optical lens can be miniaturized while improving the resolution.

[0136] In some optional embodiments, the optical lens satisfies: -1≤F1 / F2≤0; wherein F1 is the focal length of the first lens, and F2 is the focal length of the second lens. By controlling the optical powers of the first lens and the second lens to be set oppositely, and the focal length of the first lens is smaller than the focal length of the second lens, it is beneficial for the positive aberration generated by the first lens to correct the negative aberration generated by the second lens, thereby facilitating the improvement of the resolution of the optical lens. Preferably, the optical lens may further satisfy: -0.5≤F1 / F2≤0, which is beneficial for improving the resolution. More preferably, the optical lens may further satisfy: -0.272≤F1 / F2≤-0.172, which further improves the resolution.

[0137] In some optional embodiments, the optical lens satisfies: 1≤F2 / F3≤6; wherein F2 is the focal length of the second lens, and F3 is the focal length of the third lens. By controlling the focal length ratio of the second lens to the third lens, it is beneficial for the third lens to further converge the light, compress the light of a large field of view, and improve the edge resolution. At the same time, in order to achieve a compact effect, the second lens needs to have a certain convergence and transition ability, so it is necessary to control the focal length of the second lens not to be too large. Preferably, the optical lens can further satisfy: 1.5≤F2 / F3≤5, which is beneficial to improve the resolution while achieving miniaturization. More preferably, the optical lens can further satisfy: 2.234≤F2 / F3≤4.072, further improving the resolution and achieving miniaturization.

[0138] In some optional embodiments, the optical lens satisfies: 0.5≤F45 / F≤3.5; wherein F45 is the combined focal length of the fourth lens and the fifth lens, and F is the focal length of the optical lens. The combined focal length of the fourth lens and the fifth lens is reasonably controlled so that the fourth lens and the fifth lens can achieve long back focus and small telecentricity while balancing the aperture aberration. Preferably, the optical lens can further satisfy: 0.8≤F45 / F≤2, which is conducive to achieving long back focus and small telecentricity. More preferably, the optical lens can further satisfy: 1.413≤F45 / F≤1.722, which is further conducive to achieving long back focus and small telecentricity.

[0139] In some optional embodiments, the optical lens satisfies: |F45 / F123|≤1; wherein F45 is the combined focal length of the fourth lens and the fifth lens, and F123 is the combined focal length of the first lens, the second lens, and the third lens. The combined focal length of the fourth lens and the fifth lens is reasonably controlled so that the fourth lens and the fifth lens can achieve long back focus and small telecentricity while balancing the aperture aberration. Preferably, the optical lens can further satisfy: |F45 / F123|≤0.5, which is conducive to achieving long back focus and small telecentricity. More preferably, the optical lens can further satisfy: 0.011≤|F45 / F123|≤0.392, which is further conducive to achieving long back focus and small telecentricity.

[0140] In some optional embodiments, the optical lens satisfies: |F1 / F123|≤0.7; wherein F123 is the combined focal length of the first lens, the second lens and the third lens, and F1 is the focal length of the first lens. The first lens has a negative optical power, the second lens and the third lens are positive lenses, and controlling the proportion of the first lens in the combined focal length of the first lens to the third lens is beneficial for the first lens to balance the aberrations generated by the second lens and the third lens, thereby improving the resolution. Preferably, the optical lens may further satisfy: |F1 / F123|≤0.35, which is beneficial for improving the resolution. More preferably, the optical lens may further satisfy: 0.003≤|F1 / F123|≤0.114, further improving the resolution.

[0141] It should be noted that the total length TTL of the optical lens is the on-axis distance from the first side surface of the first lens to the imaging surface of the optical lens, and the optical back focus BFL is the on-axis distance from the fifth lens to the imaging surface of the optical lens.

[0142] 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.

[0143] 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.

[0144] In some optional embodiments, the fourth lens is an aspherical lens.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] Embodiment 1

[0149] like Figure 1 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0150] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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. The light from the object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the second lens and the third lens are cemented.

[0151] In this embodiment, the focal length F of the optical lens is 14.0133 mm, the total length TTL of the optical lens is 57.6708 mm, and the maximum field of view FOV of the optical lens is 32.5480°.

[0152] 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 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.

[0153] Table 1

[0154]

[0155] In this embodiment, the second side surface S8 of the fourth lens is an aspherical surface. The surface shape of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0156] Formula (1);

[0157] 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), and D (10th-order coefficient) that can be used for the surface of the aspheric lens in this embodiment.

[0158] Table 2

[0159]

[0160] Embodiment 2

[0161] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0162] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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 concave, and the second side surface S10 of the fifth lens is convex. The light from the object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. Among them, the first lens and the second lens are glued together.

[0163] In this embodiment, the focal length F of the optical lens is 14.0163 mm, the total length TTL of the optical lens is 56.5771 mm, and the maximum field of view FOV of the optical lens is 32.5137°.

[0164] 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 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.

[0165] Table 3

[0166]

[0167] In this embodiment, 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.

[0168] 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.

[0169] Table 4

[0170]

[0171] Embodiment 3

[0172] like Figure 3As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0173] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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.

[0174] In this embodiment, the focal length F of the optical lens is 13.9812 mm, the total length TTL of the optical lens is 56.1065 mm, and the maximum field of view FOV of the optical lens is 32.6457°.

[0175] 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 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.

[0176] Table 5

[0177]

[0178] In this embodiment, 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.

[0179] 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.

[0180] Table 6

[0181]

[0182] Embodiment 4

[0183] like Figure 4 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0184] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is a plane, 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 first side surface S7 of the fourth lens has an inflection point.

[0185] In this embodiment, the focal length F of the optical lens is 13.9388 mm, the total length TTL of the optical lens is 54.2693 mm, and the maximum field of view FOV of the optical lens is 32.5035°.

[0186] 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 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.

[0187] Table 7

[0188]

[0189] In this embodiment, 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.

[0190] Table 8 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.

[0191] Table 8

[0192]

[0193] Embodiment 5

[0194] like Figure 5 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0195] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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 a plane. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0196] In this embodiment, the focal length F of the optical lens is 13.9735 mm, the total length TTL of the optical lens is 56.0638 mm, and the maximum field of view FOV of the optical lens is 32.6232°.

[0197] Table 9 shows the basic structural parameters of the optical lens of Example 5, wherein the units of the radius of curvature Radius and the thickness / distance 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.

[0198] Table 9

[0199]

[0200] In this embodiment, 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.

[0201] Table 10 below shows the cone coefficient k and the coefficients of the higher-order terms that can be used for the aspherical lens surface in this embodiment.

[0202] Table 10

[0203]

[0204] Embodiment 6

[0205] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0206] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative 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 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 side surface S8 of the fourth lens has an inflection point.

[0207] In this embodiment, the focal length F of the optical lens is 13.8804 mm, the total length TTL of the optical lens is 54.3067 mm, and the maximum field of view FOV of the optical lens is 32.5219°.

[0208] 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 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.

[0209] Table 11

[0210]

[0211] In this embodiment, 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.

[0212] Table 12 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.

[0213] Table 12

[0214]

[0215] Embodiment 7

[0216] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0217] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative 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 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 and the third lens are cemented, and the second side surface S8 of the fourth lens has an inflection point.

[0218] In this embodiment, the focal length F of the optical lens is 14.0343 mm, the total length TTL of the optical lens is 53.8876 mm, and the maximum field of view FOV of the optical lens is 32.5799°.

[0219] 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 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.

[0220] Table 13

[0221]

[0222] In this embodiment, 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.

[0223] 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.

[0224] Table 14

[0225]

[0226] Embodiment 8

[0227] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0228] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 a plane, and the second side surface S10 of the fifth lens is a convex surface. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. The first lens, the second lens, and the third lens are cemented.

[0229] In this embodiment, the focal length F of the optical lens is 14.0460 mm, the total length TTL of the optical lens is 57.0794 mm, and the maximum field of view FOV of the optical lens is 32.5612°.

[0230] 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 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.

[0231] Table 15

[0232]

[0233] In this embodiment, 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.

[0234] 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.

[0235] Table 16

[0236]

[0237] Embodiment 9

[0238] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0239] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 the imaging surface IMA. The second lens and the third lens are cemented.

[0240] In this embodiment, the focal length F of the optical lens is 14.0334 mm, the total length TTL of the optical lens is 57.0319 mm, and the maximum field of view FOV of the optical lens is 32.55°.

[0241] 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 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.

[0242] Table 17

[0243]

[0244] In this embodiment, the second side surface S8 of the fourth 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.

[0245] 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.

[0246] Table 18

[0247]

[0248] Embodiment 10

[0249] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0250] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is concave, 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. The light from the object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA.

[0251] In this embodiment, the focal length F of the optical lens is 14.0232 mm, the total length TTL of the optical lens is 54.2545 mm, and the maximum field of view FOV of the optical lens is 32.4995°.

[0252] 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 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.

[0253] Table 19

[0254]

[0255] In this embodiment, 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.

[0256] 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.

[0257] Table 20

[0258]

[0259] Embodiment 11

[0260] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0261] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. 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 first lens, the second lens, and the third lens are cemented.

[0262] In this embodiment, the focal length F of the optical lens is 14.0773 mm, the total length TTL of the optical lens is 53.5071 mm, and the maximum field of view FOV of the optical lens is 32.5368°.

[0263] 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 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.

[0264] Table 21

[0265]

[0266] In this embodiment, 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.

[0267] Table 22 below shows the cone coefficient k and various higher-order coefficients that can be used for the aspherical lens surface in this embodiment.

[0268] Table 22

[0269]

[0270] Embodiment 12

[0271] like Fig.12 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0272] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is concave, and the second side surface S8 of the fourth lens is a plane. 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. The light from the object passes through the surfaces S1 to S10 in sequence and is finally imaged on the imaging surface IMA.

[0273] In this embodiment, the focal length F of the optical lens is 13.8382 mm, the total length TTL of the optical lens is 54.3916 mm, and the maximum field of view FOV of the optical lens is 32.5296°.

[0274] 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 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.

[0275] Table 23

[0276]

[0277] In this embodiment, the first side surface S7 of the fourth 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.

[0278] 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.

[0279] Table 24

[0280]

[0281] Embodiment 13

[0282] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0283] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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 the object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. The second lens and the third lens are cemented.

[0284] In this embodiment, the focal length F of the optical lens is 14.2450 mm, the total length TTL of the optical lens is 56.6708 mm, and the maximum field of view FOV of the optical lens is 32.7844°.

[0285] 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 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.

[0286] Table 25

[0287]

[0288] In this embodiment, the second side surface S8 of the fourth 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.

[0289] 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.

[0290] Table 26

[0291]

[0292] Embodiment 14

[0293] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0294] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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 concave, and the second side surface S10 of the fifth lens is convex. Light from the object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. The first lens and the second lens are cemented.

[0295] In this embodiment, the focal length F of the optical lens is 13.3538 mm, the total length TTL of the optical lens is 55.5771 mm, and the maximum field of view FOV of the optical lens is 34.2289°.

[0296] 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 are both in millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0297] Table 27

[0298]

[0299] In this embodiment, 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.

[0300] 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.

[0301] Table 28

[0302]

[0303] Embodiment 15

[0304] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0305] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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.

[0306] In this embodiment, the focal length F of the optical lens is 13.9117 mm, the total length TTL of the optical lens is 55.1065 mm, and the maximum field of view FOV of the optical lens is 32.8515°.

[0307] 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 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.

[0308] Table 29

[0309]

[0310] In this embodiment, 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.

[0311] 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.

[0312] Table 30

[0313]

[0314] Embodiment 16

[0315] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0316] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is a plane, 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 first side surface of the fourth lens has an inflection point.

[0317] In this embodiment, the focal length F of the optical lens is 14.18 mm, the total length TTL of the optical lens is 52.2689 mm, and the maximum field of view FOV of the optical lens is 31.8127°.

[0318] 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 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.

[0319] Table 31

[0320]

[0321] In this embodiment, 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.

[0322] 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.

[0323] Table 32

[0324]

[0325] Embodiment 17

[0326] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0327] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 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 a plane. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA.

[0328] In this embodiment, the focal length F of the optical lens is 14.1263 mm, the total length TTL of the optical lens is 55.0634 mm, and the maximum field of view FOV of the optical lens is 32.0763°.

[0329] 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 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.

[0330] Table 33

[0331]

[0332] In this embodiment, 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.

[0333] 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.

[0334] Table 34

[0335]

[0336] Embodiment 18

[0337] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0338] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative 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 convex. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA. The second side surface of the fourth lens has an inflection point.

[0339] In this embodiment, the focal length F of the optical lens is 13.4107 mm, the total length TTL of the optical lens is 52.3017 mm, and the maximum field of view FOV of the optical lens is 33.367°.

[0340] 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 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.

[0341] Table 35

[0342]

[0343] In this embodiment, 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.

[0344] 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.

[0345] Table 36

[0346]

[0347] Embodiment 19

[0348] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0349] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative 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 convex. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on an imaging surface IMA. The second side surface of the fourth lens has an inflection point.

[0350] In this embodiment, the focal length F of the optical lens is 13.7114 mm, the total length TTL of the optical lens is 52.8875 mm, and the maximum field of view FOV of the optical lens is 33.2635°.

[0351] 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 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.

[0352] Table 37

[0353]

[0354] In this embodiment, 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.

[0355] 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.

[0356] Table 38

[0357]

[0358] Embodiment 20

[0359] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0360] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 a plane, and the second side surface S10 of the fifth lens is a convex surface. Light from an object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA. The first lens, the second lens, and the third lens are cemented.

[0361] In this embodiment, the focal length F of the optical lens is 14.6481 mm, the total length TTL of the optical lens is 56.5793 mm, and the maximum field of view FOV of the optical lens is 31.2878°.

[0362] 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 are both in millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, Vd is the Abbe number, and Infinity means infinity.

[0363] Table 39

[0364]

[0365] In this embodiment, 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.

[0366] 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.

[0367] Table 40

[0368]

[0369] Embodiment 21

[0370] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0371] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, 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 the imaging surface IMA. The second lens and the third lens are cemented.

[0372] In this embodiment, the focal length F of the optical lens is 14.5116 mm, the total length TTL of the optical lens is 56.6856 mm, and the maximum field of view FOV of the optical lens is 31.4453°.

[0373] 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 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.

[0374] Table 41

[0375]

[0376] In this embodiment, the second side surface S8 of the fourth 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.

[0377] 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.

[0378] Table 42

[0379]

[0380] Embodiment 22

[0381] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0382] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is concave, 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. The light from the object passes through each surface S1 to S10 in sequence and is finally imaged on the imaging surface IMA.

[0383] In this embodiment, the focal length F of the optical lens is 14.0955 mm, the total length TTL of the optical lens is 53.2538 mm, and the maximum field of view FOV of the optical lens is 32.2988°.

[0384] 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 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.

[0385] Table 43

[0386]

[0387] In this embodiment, 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.

[0388] 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.

[0389] Table 44

[0390]

[0391] Embodiment 23

[0392] 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, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0393] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. 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 first lens, the second lens, and the third lens are cemented.

[0394] In this embodiment, the focal length F of the optical lens is 15.4475 mm, the total length TTL of the optical lens is 52.6903 mm, and the maximum field of view FOV of the optical lens is 28.6238°.

[0395] 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 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.

[0396] Table 45

[0397]

[0398] In this embodiment, 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.

[0399] 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.

[0400] Table 46

[0401]

[0402] Embodiment 24

[0403] like Fig.24 As shown, the optical lens includes, from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, an aperture STO, a fourth lens L4, a fifth lens L5 and an imaging surface IMA.

[0404] The first lens L1 has negative power, the first side surface S1 of the first lens is concave, 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 concave. The third lens L3 has positive power, the first side surface S5 of the third lens is convex, and the second side surface S6 of the third lens is convex. The fourth lens L4 has negative power, the first side surface S7 of the fourth lens is concave, and the second side surface S8 of the fourth lens is a plane. 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. The light from the object passes through the surfaces S1 to S10 in sequence and is finally imaged on the imaging surface IMA.

[0405] In this embodiment, the focal length F of the optical lens is 14.0911 mm, the total length TTL of the optical lens is 52.3891 mm, and the maximum field of view FOV of the optical lens is 31.9729°.

[0406] Table 47 shows the basic structural parameters of the optical lens of Example 24, where the units of the radius of curvature Radius and the thickness / distance 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.

[0407] Table 47

[0408]

[0409] In this embodiment, the first side surface S7 of the fourth 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.

[0410] 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.

[0411] Table 48

[0412]

[0413] In summary, Embodiment 1 to Embodiment 24 respectively satisfy the relationships shown in Tables 49-50.

[0414] Table 49

[0415]

[0416] Table 50

[0417]

[0418] Tables 51-53 give the focal length F (unit: mm) of the entire group of optical lenses of Examples 1 to 24.

[0419] Table 51

[0420]

[0421] Table 52

[0422]

[0423] Table 53

[0424]

[0425] The present application also provides 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. 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 above-described optical lens.

[0426] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0427] 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.

[0428] 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.

[0429] 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 includes, in sequence from the first side to the second side along the optical axis: A first lens, wherein the first lens has negative optical power, a first side surface of the first lens is a concave surface, and a second side surface of the first lens is a concave surface; a second lens, wherein the second lens has positive power, a first side surface of the second lens is a convex surface, and a second side surface of the second lens is a concave surface; A third lens, the third lens has positive power, a first side surface of the third lens is a convex surface, and a second side surface of the third lens is a convex surface; a fourth lens having optical power; a fifth lens having positive refractive power; The optical lens satisfies: 0≤(d2+d4) / TL≤0.08, 0.403≤|F1 / F|≤0.8; 0.011≤|F45 / F123|≤1; wherein d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F1 is the focal length of the first lens, F is the focal length of the optical lens, F45 is the combined focal length of the fourth lens and the fifth lens, and F123 is the combined focal length of the first lens, the second lens and the third lens.

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

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

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

5. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 50≤(FOV×F) / H≤61.449; 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.

6. The optical lens according to claim 1, characterized in that: The optical lens satisfies at least one of the following conditions: 3.411≤TTL / F≤4.5; 0.206≤TTL / H / FOV≤0.5; 11.816≤TTL / H / θ≤20; 2.993≤TTL / DMAX≤4.5; 0.15≤(F×θ) / D≤1.061; 0.03≤D / H / FOV≤0.1; 1.695≤D / H / θ≤3.5; 0.07≤D / H / F≤0.3; 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, DMAX is the maximum light clearance diameter of the optical lens, and D is the maximum light clearance diameter of the first side surface of the first lens corresponding to the maximum field of view of the optical lens.

7. The optical lens according to claim 1, characterized in that: The optical lens satisfies at least one of the following conditions: 0.28≤BFL / TTL≤0.383; 0.3≤BFL / TL≤0.62; Among them, TTL is the total optical length 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, and BFL is the optical back focus of the optical lens.

8. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 1≤F / H≤4; Wherein, F is the focal length of the optical lens, and H is the image height of the optical lens.

9. The optical lens according to claim 1, characterized in that: The optical lens satisfies at least one of the following conditions: 2.453≤F / ENPD≤3; 0.294≤F / ENPD / D≤0.5; 0.4≤DST / F≤0.659; Among them, F is the focal length of the optical lens, D is the maximum light clearance aperture of the first side surface of the first lens corresponding to the maximum field of view angle of the optical lens, ENPD is the entrance pupil diameter of the optical lens, and DST is the aperture diameter of the optical lens.

10. The optical lens according to claim 1, characterized in that: The optical lens satisfies at least one of the following conditions: 0.2≤|F4 / F5|≤65; 1≤|F4 / F|≤150; 1.351≤F5 / F≤6; Among them, F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, and F is the focal length of the optical lens.

11. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.35≤|R1 / F|≤2, Wherein, R1 is the radius of curvature of the first side surface of the first lens, and F is the focal length of the optical lens.

12. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.182≤L123 / TTL≤0.35; Wherein, L123 is the distance from the first side surface of the first lens to the second side surface of the third lens on the optical axis, and TTL is the total optical length of the optical lens.

13. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 2.5≤|F123 / F|≤139.894; Among them, F123 is the combined focal length of the first lens, the second lens and the third lens, and F is the focal length of the optical lens.

14. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.4854≤D123 / D45≤1; Wherein, D123 is the maximum light-clearance diameter among the first lens to the third lens, and D45 is the maximum light-clearance diameter among the fourth lens and the fifth lens.

15. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0≤F2 / F≤4; Among them, F2 is the focal length of the second lens, and F is the focal length of the optical lens.

16. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.563≤F3 / F≤3; Among them, F3 is the focal length of the third lens, and F is the focal length of the optical lens.

17. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: -1≤F1 / F2≤0; Wherein, F1 is the focal length of the first lens, and F2 is the focal length of the second lens.

18. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 1≤F2 / F3≤6; Wherein, F2 is the focal length of the second lens, and F3 is the focal length of the third lens.

19. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.5≤F45 / F≤3.5, Among them, F45 is the combined focal length of the fourth lens and the fifth lens, and F is the focal length of the optical lens.

20. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.003≤|F1 / F123|≤0.7; Wherein, F123 is the combined focal length of the first lens, the second lens and the third lens, and F1 is the focal length of the first lens.

21. The optical lens according to claim 1, characterized in that: The optical lens meets the following requirements: 0.1≤(T34+T45) / TTL≤0.8; Wherein, T34 is the distance between the third lens and the fourth lens on the optical axis, T45 is the distance between the fourth lens and the fifth lens on the optical axis, and TTL is the total optical length of the optical lens.

22. The optical lens according to claim 1, characterized in that: The optical lens satisfies at least one of the following conditions: 55≤(FOV×F) / H≤61.449; 3.411≤TTL / F≤4.2; 0.206≤TTL / H / FOV≤0.4; 11.816≤TTL / H / θ≤15; 2.993≤TTL / DMAX≤4; 0.4≤(F×θ) / D≤1.06; 0.03≤D / H / FOV≤0.05; 1.695≤D / H / θ ≤2.5; 0.07≤D / H / F≤0.1; 0.3≤BFL / TTL≤0.383; 0.45≤BFL / TL≤0.62; 1.2≤F / H≤2.5; 2.453≤F / ENPD≤2.6; 0.294≤F / ENPD / D≤0.4; 0.5≤DST / F≤0.659; 0.4≤|F4 / F5|≤60; 0.4≤|R1 / F|≤1; 0.182≤L123 / TTL≤0.3; 0≤(d2+d4) / TL≤0.04; 3≤|F123 / F|≤139.894; 0.403≤|F1 / F|≤0.6; 1.4≤F2 / F≤3; 0.563≤F3 / F≤2; -0.5≤F1 / F2≤0; 1.5≤F2 / F3≤5; 0.8≤F45 / F≤2; 0.011≤|F45 / F123|≤0.5; 0.003≤|F1 / F123|≤0.35; 1.5≤|F4 / F|≤120; 1.351≤F5 / F≤4; 0.15≤(T34+T45) / TTL≤0.5; 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 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, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, R1 is the curvature radius of the first side surface of the first lens, L123 is the curvature radius of the first lens, and L23 is the curvature radius of the first side surface of the first lens. The distance from the first side surface of the mirror to the second side surface of the third lens on the optical axis, d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F45 is the combined focal length of the fourth lens and the fifth lens, F123 is the combined focal length of the first lens, the second lens and the third lens, T34 is the distance between the third lens and the fourth lens on the optical axis, and T45 is the distance between the fourth lens and the fifth lens on the optical axis.

23. The optical lens according to claim 1, characterized in that: The optical lens satisfies at least one of the following conditions: 58.18≤(FOV×F) / H≤61.449; 3.411≤TTL / F≤4.162; 0.206≤TTL / H / FOV≤0.242; 11.816≤TTL / H / θ≤13.877; 2.993≤TTL / DMAX≤3.53; 0.926≤(F×θ) / D≤1.061; 0.03≤D / H / FOV≤0.038; 1.695≤D / H / θ≤2.195; 0.07≤D / H / F≤0.076; 0.347≤BFL / TTL≤0.383; 0.531≤BFL / TL≤0.62;1.757≤F / H≤2.033; 2.453≤F / ENPD≤2.473; 0.294≤F / ENPD / D≤0.328; 0.554≤DST / F≤0.659; 0.479≤|F4 / F5|≤56.05; 0.472≤|R1 / F|≤0.628; 0.182≤L123 / TTL≤0.235; 0≤(d2+d4) / TL≤0.022; 3.604≤|F123 / F|≤139.894; 0.4854≤D123 / D45≤0.6453; 0.403≤|F1 / F|≤0.467; 1.583≤F2 / F≤2.698; 0.563≤F3 / F≤0.744; -0.272≤F1 / F2≤-0.172; 2.234≤F2 / F3≤4.072; 1.413≤F45 / F≤1.722; 0.011≤|F45 / F123|≤0.392; 0.003≤|F1 / F123|≤0.114; 1.89≤|F4 / F|≤92.707; 1.351≤F5 / F≤3.942; 0.174≤(T34+T45) / TTL≤0.257; 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 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, BFL is the optical back focus of the optical lens, ENPD is the entrance pupil diameter of the optical lens, DST is the aperture diameter of the optical lens, R1 is the curvature radius of the first side surface of the first lens, L123 is the distance from the first side surface of the first lens to the second side surface of the third lens on the optical axis, d2 is the interval between the first lens and the second lens on the optical axis, d4 is the interval between the second lens and the third lens on the optical axis, 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, F45 is the combined focal length of the fourth lens and the fifth lens, F123 is the combined focal length of the first lens, the second lens and the third lens, D123 is the maximum light-clearing aperture from the first lens to the third lens, D45 is the maximum light-clearing aperture from the fourth lens to the fifth lens, T34 is the distance between the third lens and the fourth lens on the optical axis, and T45 is the distance between the fourth lens and the fifth lens on the optical axis.

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

Images