Optical lens and electronic device with same

Abstract

The application provides an optical lens and an electronic device with the same. The optical lens comprises: a first lens, the first lens having positive refractive power, a first side of the first lens being a convex surface, and a second side of the first lens being a convex surface; a second lens, the second lens having negative refractive power, a second side of the second lens being a concave surface; a third lens, the third lens having positive refractive power, a second side of the third lens being a convex surface; a fourth lens, the fourth lens having positive refractive power, a first side of the fourth lens being a convex surface, and a second side of the fourth lens being a convex surface; and a fifth lens, the fifth lens having refractive power, a first side of the fifth lens being a convex surface, and a second side of the fifth lens being a concave surface. The application solves the problem that the optical lens in the prior art cannot be both high-brightness and small in size.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical imaging devices, in particular to an optical lens and an electronic device having the same. BACKGROUND

[0002] In recent years, with the continuous progress of image technology, the application range of optical lenses is wider and wider. For an optical lens, if a high-brightness imaging picture is to be obtained, the light passing ability of the lens needs to be strong enough, which requires a smaller F number of the lens, and it is difficult to ensure the imaging quality of the optical lens. Generally, to obtain a high-brightness imaging picture, the lens aperture needs to be increased, resulting in a large volume of the optical lens, which is not conducive to the miniaturization of the optical lens. In order to meet the requirements of miniaturized electronic devices, optical imaging devices are increasingly miniaturized, so the aperture of the optical lens cannot be too large, and the miniaturization of the optical lens is crucial. However, the result of miniaturization is a smaller space, which is not conducive to the optical imaging lens to ensure high resolution.

[0003] That is, the optical lens in the prior art has the problem that large light passing amount, high resolution and miniaturization cannot be considered together.

[0004] Therefore, the present application aims to provide an optical lens with miniaturization, large light passing amount and high resolution, which can be used in the field of intelligent projection type headlamps. SUMMARY

[0005] The main purpose of the present application is to provide an optical lens with miniaturization, large light passing amount and high resolution, and an electronic device having the same, to solve the problem that large light passing amount, high resolution and miniaturization cannot be considered together in the prior art optical lens.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an optical lens is provided, comprising: a first lens, the first lens having a positive focal power, a first side surface of the first lens being a convex surface, and a second side surface of the first lens being a convex surface; a second lens, the second lens having a negative focal power, a second side surface of the second lens being a concave surface; a third lens, the third lens having a positive focal power, a second side surface of the third lens being a convex surface; a fourth lens, the fourth lens having a positive focal power, a first side surface of the fourth lens being a convex surface, and a second side surface of the fourth lens being a convex surface; and a fifth lens, the fifth lens having a focal power, a first side surface of the fifth lens being a convex surface, and a second side surface of the fifth lens being a concave surface.

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

[0008] Further, the first side surface of the second lens is a plane.

[0009] Further, the first side surface of the second lens is a concave surface.

[0010] Further, the first side surface of the third lens is a convex surface.

[0011] Further, the first side surface of the third lens is a flat surface.

[0012] Further, the fifth lens has a positive focal power.

[0013] Further, the fifth lens has a negative focal power.

[0014] Further, the first lens and / or the second lens is an aspherical lens.

[0015] Further, the optical lens further comprises a diaphragm, the diaphragm being arranged between the first lens and the second lens.

[0016] Further, the material of the first lens is PMMA.

[0017] Further, the material of the second lens is COC plastic.

[0018] Further, the second side surface of the first lens has at least one inflection point.

[0019] Further, the focal length F of the optical lens and the entrance pupil diameter D of the optical lens satisfy: F / D≤1.2.

[0020] Further, the air interval BFL from the chip surface to the center of the second side surface of the fifth lens of the optical lens and the total track length TTL of the optical lens satisfy: BFL / TTL≥0.01.

[0021] Further, the curvature radius R1 of the first side surface of the first lens and the curvature radius R2 of the second side surface of the first lens satisfy: |R1 / R2|≤3.

[0022] Further, the combined focal length F23 of the second lens and the third lens and the focal length F of the optical lens satisfy: |F23 / F|≥1.8.

[0023] Further, the total track length TTL of the optical lens and the focal length F of the optical lens satisfy: TTL / F≤3.

[0024] Further, the focal length F2 of the second lens and the focal length F3 of the third lens satisfy: |F2 / F3|≤1.8.

[0025] Further, the focal length F1 of the first lens and the focal length F2 of the second lens satisfy: |F1 / F2|≤2.

[0026] Further, the curvature radius R10 of the first side surface of the fifth lens, the curvature radius R11 of the second side surface of the fifth lens and the central thickness d5 of the fifth lens satisfy: 0.2≤R10 / (R11+d5)≤2.

[0027] Further, a focal length F of the optical lens and a curvature radius R1 of the first side surface of the first lens satisfy: F / R1≥0.2.

[0028] Further, a focal length F3 of the third lens and a focal length F4 of the fourth lens satisfy: 0.2≤F3 / F4≤1.5.

[0029] Further, a focal length F of the optical lens and a full image height H corresponding to a maximum field angle of the optical lens satisfy: 1≤F / H≤3.

[0030] Further, a refractive index Nd5 of the fifth lens satisfies: Nd5≥1.6.

[0031] Further, a focal length F2 of the second lens and a focal length F of the optical lens satisfy: |F2 / F|≥0.5.

[0032] Further, a curvature radius R2 of the second side surface of the first lens and a curvature radius R4 of the first side surface of the second lens satisfy: 0.05≤|(R2-R4) / (R2+R4)|≤2.

[0033] Further, a focal length F of the optical lens, an effective focal length F3 of the third lens and a curvature radius R5 of the second side surface of the second lens satisfy: |F / F3|+|F / R5|≤4.

[0034] Further, a full image height H corresponding to a maximum field angle of the optical lens, a focal length F of the optical lens and a field angle θ of the optical lens satisfy: |(H-F*θ) / (F*θ)|≤1.5.

[0035] Further, a focal length F1 of the first lens and a focal length F of the optical lens satisfy: F1 / F≥0.01.

[0036] Further, a focal length F3 of the third lens and a focal length F of the optical lens satisfy: F3 / F≥0.01.

[0037] Further, a focal length F5 of the fifth lens and a focal length F of the optical lens satisfy: |F5 / F|≥0.02.

[0038] Further, a curvature radius R1 of the first side surface of the first lens and a focal length F of the optical lens satisfy: R1 / F≥0.01.

[0039] Further, a curvature radius R2 of the second side surface of the first lens and a focal length F of the optical lens satisfy: R2 / F≤-0.01.

[0040] Further, a curvature radius R5 of the second side surface of the second lens and a focal length F of the optical lens satisfy: R5 / F≥0.02.

[0041] Further, a curvature radius R7 of the second side surface of the third lens and the focal length F of the optical lens satisfy: R7 / F≤-0.1.

[0042] Further, a curvature radius R8 of the first side surface of the fourth lens and the focal length F of the optical lens satisfy: R8 / F≥0.2.

[0043] Further, a curvature radius R9 of the second side surface of the fourth lens and the focal length F of the optical lens satisfy: R9 / F≤-0.1.

[0044] Further, a curvature radius R10 of the first side surface of the fifth lens and the focal length F of the optical lens satisfy: R10 / F≥0.01.

[0045] Further, a curvature radius R11 of the second side surface of the fifth lens and the focal length F of the optical lens satisfy: R11 / F≥0.01.

[0046] According to another aspect of the present application, an optical lens is provided, comprising: a first lens, the first lens having a positive optical power; a second lens, the second lens having a negative optical power; a third lens, the third lens having a positive optical power; a fourth lens, the fourth lens having a positive optical power; a fifth lens, the fifth lens having an optical power; an optical total track length TTL of the optical lens and a focal length F of the optical lens satisfy: TTL / F≤3.

[0047] Further, the first side surface of the first lens is a convex surface, and the second side surface of the first lens is a convex surface.

[0048] Further, the first side surface of the second lens is a convex surface, and the second side surface of the second lens is a concave surface.

[0049] Further, the first side surface of the second lens is a plane surface, and the second side surface of the second lens is a concave surface.

[0050] Further, the first side surface of the second lens is a concave surface, and the second side surface of the second lens is a concave surface.

[0051] Further, the first side surface of the third lens is a convex surface, and the second side surface of the third lens is a convex surface.

[0052] Further, the first side surface of the third lens is a plane surface, and the second side surface of the third lens is a convex surface.

[0053] Further, 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.

[0054] Further, 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.

[0055] Further, the fifth lens has a positive focal power or a negative focal power.

[0056] Further, the first lens and / or the second lens is an aspherical lens.

[0057] Further, the optical lens further comprises a diaphragm, the diaphragm is arranged between the first lens and the second lens.

[0058] Further, the material of the first lens is PMMA.

[0059] Further, the material of the second lens is COC plastic.

[0060] Further, the second side surface of the first lens has at least one inflection point.

[0061] Further, the focal length F of the optical lens and the entrance pupil diameter D of the optical lens satisfy: F / D≤1.2.

[0062] Further, the air interval BFL from the chip surface to the center of the second side surface of the fifth lens of the optical lens and the total track length TTL of the optical lens satisfy: BFL / TTL≥0.01.

[0063] Further, the curvature radius R1 of the first side surface of the first lens and the curvature radius R2 of the second side surface of the first lens satisfy: |R1 / R2|≤3.

[0064] Further, the combined focal length F23 of the second lens and the third lens and the focal length F of the optical lens satisfy: |F23 / F|≥1.8.

[0065] Further, the focal length F2 of the second lens and the focal length F3 of the third lens satisfy: |F2 / F3|≤1.8.

[0066] Further, the focal length F1 of the first lens and the focal length F2 of the second lens satisfy: |F1 / F2|≤2.

[0067] Further, the curvature radius R10 of the first side surface of the fifth lens, the curvature radius R11 of the second side surface of the fifth lens and the central thickness d5 of the fifth lens satisfy: 0.2≤R10 / (R11+d5)≤2.

[0068] Further, the focal length F of the optical lens and the curvature radius R1 of the first side surface of the first lens satisfy: F / R1≥0.2.

[0069] Further, a focal length F3 of the third lens and a focal length F4 of the fourth lens satisfy: 0.2≤F3 / F4≤1.5.

[0070] Further, a focal length F of the optical lens and a total image height H corresponding to a maximum field angle of the optical lens satisfy: 1≤F / H≤3.

[0071] Further, a refractive index Nd5 of the fifth lens satisfies: Nd5≥1.6.

[0072] Further, a focal length F2 of the second lens and a focal length F of the optical lens satisfy: |F2 / F|≥0.5.

[0073] Further, a curvature radius R2 of the second side surface of the first lens and a curvature radius R4 of the first side surface of the second lens satisfy: 0.05≤|(R2-R4) / (R2+R4)|≤2.

[0074] Further, a focal length F of the optical lens, an effective focal length F3 of the third lens and a curvature radius R5 of the second side surface of the second lens satisfy: |F / F3|+|F / R5|≤4.

[0075] Further, a total image height H corresponding to a maximum field angle of the optical lens, a focal length F of the optical lens and a field angle θ of the optical lens satisfy: |(H-F*θ) / (F*θ)|≤1.5.

[0076] Further, a focal length F1 of the first lens and a focal length F of the optical lens satisfy: F1 / F≥0.01.

[0077] Further, a focal length F3 of the third lens and a focal length F of the optical lens satisfy: F3 / F≥0.01.

[0078] Further, a focal length F5 of the fifth lens and a focal length F of the optical lens satisfy: |F5 / F|≥0.02.

[0079] Further, a curvature radius R1 of the first side surface of the first lens and a focal length F of the optical lens satisfy: R1 / F≥0.01.

[0080] Further, a curvature radius R2 of the second side surface of the first lens and a focal length F of the optical lens satisfy: R2 / F≤-0.01.

[0081] Further, a curvature radius R5 of the second side surface of the second lens and a focal length F of the optical lens satisfy: R5 / F≥0.02.

[0082] Further, a curvature radius R7 of the second side surface of the third lens and a focal length F of the optical lens satisfy: R7 / F≤-0.1.

[0083] Further, a curvature radius R8 of the first side surface of the fourth lens and a focal length F of the optical lens satisfy: R8 / F≥0.2.

[0084] Further, a curvature radius R9 of the second side surface of the fourth lens and the focal length F of the optical lens satisfy: R9 / F≤-0.1.

[0085] Further, a curvature radius R10 of the first side surface of the fifth lens and the focal length F of the optical lens satisfy: R10 / F≥0.01.

[0086] Further, a curvature radius R11 of the second side surface of the fifth lens and the focal length F of the optical lens satisfy: R11 / F≥0.01.

[0087] According to another aspect of the present application, an electronic device is provided, comprising the optical lens and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

[0088] According to the technical scheme of the present application, the optical lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, the first lens has positive focal power, a first side surface of the first lens is convex, and a second side surface of the first lens is convex; the second lens has negative focal power, and a second side surface of the second lens is concave; the third lens has positive focal power, and a second side surface of the third lens is convex; the fourth lens has positive focal power, a first side surface of the fourth lens is convex, and a second side surface of the fourth lens is convex; the fifth lens has focal power, a first side surface of the fifth lens is convex, and a second side surface of the fifth lens is concave.

[0089] By setting the first lens to have positive focal power, the incident light rays can be converged, the aperture of the rear lens of the optical lens can be reduced, the optical lens can be miniaturized, the first side surface of the first lens is convex, the second side surface of the first lens is convex, the projection range of the optical lens can be increased, and in the application of vehicle lamp illumination, a higher appearance performance can be provided. By setting the second lens to have negative focal power, the light rays converged by the first lens are diverged, and the large aberration generated after the light rays pass through the first lens is balanced. By setting the third lens to have positive focal power, the light rays are converged, the aperture of the rear lens of the optical lens is reduced, and the optical lens can be miniaturized. The fourth lens having positive focal power cooperates with the third lens having positive focal power to further converge the light rays, the light rays are rapidly converged, and the large aberration caused by the large deflection angle of the light rays is avoided, and the imaging quality is ensured. By setting the first side surface of the fifth lens to be convex and the second side surface of the fifth lens to be concave, the light flux is increased, and higher imaging quality is achieved. A material with high refractive index and low Abbe number is selected to compensate for the on-axis aberration of the optical lens, and the imaging quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0090] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application, and are incorporated herein by reference. The embodiments disclosed herein illustrate the application and together with the description serve to explain the application. In the drawings:

[0091] Figure 1 A structural schematic diagram of an optical lens of Example One of the present application is shown;

[0092] Figure 2 A structural schematic diagram of an optical lens of Example Two of the present application is shown;

[0093] Figure 3 A structural schematic diagram of an optical lens of Example Three of the present application is shown;

[0094] Figure 4 A structural schematic diagram of an optical lens of Example Four of the present application is shown;

[0095] Figure 5 A structural schematic diagram of an optical lens of Example Five of the present application is shown;

[0096] Figure 6 A structural schematic diagram of an optical lens of Example Six of the present application is shown;

[0097] Figure 7 A structural schematic diagram of an optical lens of Example Seven of the present application is shown;

[0098] Figure 8 A structural schematic diagram of an optical lens of Example Eight of the present application is shown;

[0099] Figure 9 A structural schematic diagram of an optical lens of Example Nine of the present application is shown;

[0100] Figure 10 A structural schematic diagram of an optical lens of Example Ten of the present application is shown.

[0101] Wherein, the above drawings include the following reference signs:

[0102] L1, first lens; S1, first side of the first lens; S2, second side of the first lens; L2, second lens; S4, first side of the second lens; S5, second side of the second lens; L3, third lens; S6, first side of the third lens; S7, second side of the third lens; L4, fourth lens; S8, first side of the fourth lens; S9, second side of the fourth lens; L5, fifth lens; S10, first side of the fifth lens; S11, second side of the fifth lens; IMA, imaging surface. DETAILED DESCRIPTION

[0103] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0104] It should be noted that unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0105] In the present application, unless otherwise specified, the orientation words such as "upper", "lower", "top", "bottom" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions of the components themselves; similarly, for the convenience of understanding and description, "inner" and "outer" refer to the inner and outer relative to the contour of the components themselves, but the above orientation words are not used to limit the present application.

[0106] It should be noted that in the present 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, the first lens discussed below can also be referred to as the second lens or the third lens without departing from the teachings of the present application.

[0107] In the drawings, the thickness, size and shape of the lens have been slightly exaggerated for the convenience of illustration. Specifically, the shape of the spherical surface or aspherical surface shown in the drawings is shown by way of example. That is, the shape of the spherical surface or aspherical surface is not limited to the shape of the spherical surface or aspherical surface shown in the drawings. The drawings are merely examples and are not drawn strictly to scale.

[0108] In this context, 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 specified, 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 specified, it means that the lens surface is concave at least in the paraxial region. The surface of each lens near the object side is the first side of the lens, and the surface of each lens near the image side is the second side of the lens. The judgment of the surface shape in the paraxial region can be based on the judgment method of those skilled in the art, with R value (R refers to the radius of curvature in the paraxial region, usually refers to the R value on the lens data in the optical software) to judge the convexity and concavity. As for the first side, when the R value is positive, it is determined to be convex, and when the R value is negative, it is determined to be concave; as for the second side, when the R value is positive, it is determined to be concave, and when the R value is negative, it is determined to be convex.

[0109] The present application generally protects ordinary optical lenses, and in the 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 surface, and the second side is the image side surface.

[0110] In the example embodiments, the optical lens provided by the present application can be used as, for example, a vehicle-mounted lens. Light rays from the object side can be imaged on the image side.

[0111] When the optical lens in the present application is applied to a projection lens / radar transmitting lens, the left side is the imaging side, and the right side is the image source side. In the example embodiments, the optical lens provided by the present application can be used as, for example, a projection lens or a laser radar transmitting end lens. At this time, the image side of the optical lens can be the image source side, and the object side can be the imaging side. Light rays from the image source side can be imaged on the imaging side. The imaging surface of the optical lens is the image source surface.

[0112] In order to solve the problem that the optical lens in the prior art cannot balance high brightness and miniaturization, the present application provides an optical lens and an electronic device having the same.

[0113] Embodiment one

[0114] As shown in Figures 1 to 10 the optical lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens has positive refractive power. The first side of the first lens is a convex surface, and the second side of the first lens is a convex surface. The second lens has negative refractive power, and the second side of the second lens is a concave surface. The third lens has positive refractive power, and the second side of the third lens is a convex surface. The fourth lens has positive refractive power. The first side of the fourth lens is a convex surface, and the second side of the fourth lens is a convex surface. The fifth lens has refractive power. The first side of the fifth lens is a convex surface, and the second side of the fifth lens is a concave surface.

[0115] By setting the first lens to have positive refractive power, the incident light rays can be converged, the aperture of the rear lens of the optical lens can be reduced, the optical lens can be miniaturized, the first side of the first lens is a convex surface, the second side of the first lens is a convex surface, the projection range of the optical lens can be increased, and in the application of vehicle lamp illumination, a higher appearance performance can be provided. By setting the second lens to have negative refractive power, the light rays converged by the first lens are diverged, and the large aberration of the light rays after the first lens is balanced. By setting the third lens to have positive refractive power, the light rays are converged, the aperture of the rear lens of the optical lens is reduced, and the optical lens can be miniaturized. The fourth lens with positive refractive power cooperates with the third lens with positive refractive power to further converge the light rays, the light rays are quickly converged, and a large aberration caused by a large deflection angle of the light rays is avoided, and the imaging quality is ensured. By setting the first side of the fifth lens to be a convex surface and the second side of the fifth lens to be a concave surface, the light flux can be increased, a higher imaging quality can be achieved, a material with high refractive index and low Abbe number is selected to compensate for the on-axis aberration of the optical lens, and the imaging quality is improved.

[0116] Optionally, the first side of the second lens is convex, and the second side of the second lens is concave. In this way, the second lens is a meniscus shape concave to the second side, so that the light rays passing through the aperture smoothly transition, and at the same time, the large-angle light rays are made to enter as much as possible to improve the illumination.

[0117] Of course, it can also be that the first side of the second lens is flat, and the second side of the second lens is concave. The second lens can balance the large aberration generated after the first lens, and at the same time, the light rays smoothly transition.

[0118] It can also be that the first side of the second lens is concave, and the second side of the second lens is concave. In this way, the second lens is double concave, which can make the light rays passing through the aperture smoothly transition.

[0119] Optionally, the first side of the third lens is convex. In this way, the third lens is double convex, so that the third lens is thick in the middle and thin at the edges to balance the remaining aberration after the first lens and the second lens are matched.

[0120] It can also be that the first side of the third lens is flat. In this way, the third lens is shaped to be curved towards the image side, thick in the middle and thin at the edges to balance the remaining aberration after the first lens and the second lens are matched.

[0121] Specifically, the first side of the fourth lens is convex, and the second side of the fourth lens is convex, which is conducive to the convergence of light rays by the fourth lens. The fourth lens is double convex, so that the fourth lens is thick in the middle and thin at the edges to balance the remaining aberration of the front optical system.

[0122] Specifically, the first side of the fifth lens is convex, and the second side of the fifth lens is concave. In this way, the fifth lens is a meniscus shape concave to the second side, so that the light rays smoothly transition, and the large-angle deflection of the light rays is reduced to reduce aberration.

[0123] Optionally, the fifth lens has positive focal power. In this way, it is conducive to the fifth lens to collect more light into the rear optical lens to increase the light flux and achieve high imaging quality.

[0124] Optionally, the fifth lens has negative focal power. In this way, the light rays passing through the fourth lens can be diverged by the fifth lens, and in the case of ensuring the light flux, a large image surface is achieved to increase the illumination range.

[0125] Specifically, the first lens and the second lens are aspherical lenses. The first lens and the second lens are set as aspherical lenses, which can improve the resolving power of the optical lens. Of course, one of the first lens and the second lens can also be aspherical.

[0126] In the embodiment, the optical lens further comprises a diaphragm, and the diaphragm is arranged between the first lens and the second lens. Arranging the diaphragm between the first lens and the second lens can quickly converge the light beam, reduce the aperture of the rear-end lens, and facilitate miniaturization of the optical lens.

[0127] Optionally, the material of the first lens is PMMA (organic glass). The material of the first lens is preferably PMMA resistant to 120 DEG C high temperature, the transmittance of the material does not decay with the increase of the thickness of the lens, and the high transmittance can be obtained without coating an antireflection film, thereby saving the cost while ensuring the overall light efficiency.

[0128] Optionally, the material of the second lens is COC (cyclo olefin copolymer) plastic. The material of the second lens is preferably COC plastic resistant to 120 DEG C high temperature and having a thermal expansion coefficient close to that of the first lens, so that the second lens and the first lens are matched to effectively improve the thermal compensation performance.

[0129] In the embodiment, the edge of the second side surface of the first lens is reversely curved. Arranging the edge of the second side surface of the first lens reversely curved can improve the edge field of view resolution.

[0130] In the embodiment, the focal length F of the optical lens and the entrance pupil diameter D of the optical lens satisfy F / D≤1.2. By limiting F / D within a reasonable range, the amount of light entering the optical lens can be controlled, and a large light quantity is ensured to have a smaller FNO. The entrance pupil of the optical lens refers to an image formed by the diaphragm of the optical lens in the object space. Preferably, F / D≤1.

[0131] In the embodiment, the air interval BFL from the chip surface of the optical lens to the center of the second side surface of the fifth lens and the total optical length TTL of the optical lens satisfy BFL / TTL≥0.01. In the case of the same total optical length, the back focus of the optical lens can be effectively increased, which is beneficial to the arrangement of the chip and electronic components and the assembly of the optical lens. Preferably, BFL / TTL≥0.05.

[0132] In the embodiment, the curvature radius R1 of the first side surface of the first lens and the curvature radius R2 of the second side surface of the first lens satisfy |R1 / R2|≤3. By limiting |R1 / R2| within a reasonable range, the shape of the second lens can be reasonably set, more large-angle light rays can be collected into the rear optical system, and the light rays between the first lens and the second lens can be smoothly transferred, which is beneficial to improving the resolution. Preferably, |R1 / R2|≤2.

[0133] In the embodiment, the combined focal length F23 of the second lens and the third lens and the focal length F of the optical lens satisfy: |F23 / F|≥1.8. Such setting can set the focal length of the first lens and the second lens in a reasonable range, and the larger the combined focal length of the first lens and the second lens, the more the residual aberrations are generated while compensating for chromatic aberration. Preferably, |F23 / F|≥2.8.

[0134] In the embodiment, the total optical length TTL of the optical lens and the focal length F of the optical lens satisfy: TTL / F≤3. By limiting TTL / F in a reasonable range, it is beneficial to limit the relationship between the total optical length and the focal length, and beneficial to the miniaturization of the optical lens. Preferably, TTL / F≤2.5.

[0135] In the embodiment, the focal length F2 of the second lens and the focal length F3 of the third lens satisfy: |F2 / F3|≤1.8. By limiting |F2 / F3|≤1.8 in a reasonable range, the light ray trend between the first lens and the fourth lens can be controlled, the aberration caused by the deflection of large-angle light rays is reduced, and the lenses are more compact, which is beneficial to the miniaturization of the optical lens. Preferably, |F2 / F3|≤1.2.

[0136] In the embodiment, the focal length F1 of the first lens and the focal length F2 of the second lens satisfy: |F1 / F2|≤2. By limiting |F1 / F2|≤2 in a reasonable range, it is helpful for the smooth transition of light rays, beneficial to correcting chromatic aberration, improving imaging quality, and the similar optical power of the plastic lens can effectively improve the thermal compensation of the optical lens.

[0137] In the embodiment, the radius of curvature R10 of the first side of the fifth lens, the radius of curvature R11 of the second side of the fifth lens, and the central thickness d5 of the fifth lens satisfy: 0.2≤R10 / (R11+d5)≤2. By limiting R10 / (R11+d5) in a reasonable range, the shape of the fifth lens is close to a concentric circle, and such special lens shape setting causes the optical path difference between the edge light and the center light, so as to diverge the center light, reduce the aberration caused by the deflection of the fourth lens to the light, and ensure the imaging quality of the optical lens. Preferably, 0.3≤R10 / (R11+d5)≤1.5.

[0138] In the embodiment, the focal length F of the optical lens and the radius of curvature R1 of the first side of the first lens satisfy: F / R1≥0.2. By limiting F / R1≥0.2 in a reasonable range, it is helpful to make the incident light refraction angle change more moderate, avoid too strong refraction change to generate too much aberration, and is beneficial to the manufacture of the first lens, while the tolerance sensitivity can be reduced. Preferably, F / R1≥0.4.

[0139] In the embodiment, the focal length F3 of the third lens and the focal length F4 of the fourth lens satisfy: 0.2≤F3 / F4≤1.5. By limiting F3 / F4 in a reasonable range, the light rays are gently converging, the aperture of the rear elements is reduced, and the miniaturization and low cost of the optical lens are facilitated. Preferably, 0.5≤F3 / F4≤1.2.

[0140] In the embodiment, the focal length F of the optical lens and the total image height H corresponding to the maximum field angle of the optical lens satisfy: 1≤F / H≤3. By controlling the focal length and the image height of the optical lens in a reasonable range, the resolution is improved. Preferably, 1.8≤F / H≤2.6.

[0141] In the embodiment, the refractive index Nd5 of the fifth lens satisfies: Nd5≥1.6. By limiting the refractive index of the fifth lens in a range greater than or equal to 1.6, the material of the fifth lens is a high refractive index material, which facilitates the reduction of the front aperture and the improvement of the image quality. Preferably, Nd5≥1.65, and more preferably, Nd5≥1.75.

[0142] In the embodiment, the focal length F2 of the second lens and the focal length F of the optical lens satisfy: |F2 / F|≥0.5. The second lens is preferably a plastic transparent lens, and limiting |F2 / F| in a reasonable range can reasonably allocate the focal length of the second lens and facilitate thermal compensation. Preferably, |F2 / F|≥0.8.

[0143] In the embodiment, the radius of curvature R2 of the second side of the first lens and the radius of curvature R4 of the first side of the second lens satisfy: 0.05≤|(R2-R4) / (R2+R4)|≤2. By limiting |(R2-R4) / (R2+R4)| in a reasonable range, the aberration of the optical lens can be corrected, and when the light rays emitted from the first lens enter the first side of the second lens, the incident light rays are relatively gentle, thereby reducing the tolerance sensitivity of the optical lens. Preferably, 0.1≤|(R2-R4) / (R2+R4)|≤1.6.

[0144] In the embodiment, the focal length F of the optical lens, the effective focal length F3 of the third lens, and the radius of curvature R5 of the second side of the second lens satisfy: |F / F3|+|F / R5|≤4. By controlling |F / F3|+|F / R5| in a reasonable range, the curvature radius of the surface of the second lens can be controlled, the incident light rays can be guided into the optical lens, and the astigmatism can be effectively corrected to improve the imaging quality. Preferably, |F / F3|+|F / R5|≤3.

[0145] In the embodiment, the total image height H corresponding to the maximum field angle of the optical lens, the focal length F of the optical lens, and the field angle θ of the optical lens satisfy the condition: |(H-F*θ) / (F*θ)|≤1.5. By limiting |(H-F*θ) / (F*θ)| to a reasonable range, the focal length of the optical lens is increased under the condition that the field angle of the optical lens and the size of the imaging surface remain unchanged, and the effect of highlighting the central region of the imaging surface is highlighted. Preferably, |(H-F*θ) / (F*θ)|≤1.

[0146] In the embodiment, the focal length F1 of the first lens and the focal length F of the optical lens satisfy the condition: F1 / F≥0.01. The first lens has positive refractive power, which helps to increase the projection range of the optical lens and at the same time provides a better appearance surface in vehicle lamp lighting applications. Preferably, F1 / F≥0.5.

[0147] In the embodiment, the focal length F3 of the third lens and the focal length F of the optical lens satisfy the condition: F3 / F≥0.01. The third lens has positive refractive power, which helps to further converge the light beam and reduce the lens aperture at the rear end of the optical lens. Preferably, F3 / F≥0.5.

[0148] In the embodiment, the focal length F5 of the fifth lens and the focal length F of the optical lens satisfy the condition: |F5 / F|≥0.02. The fifth lens has positive or negative refractive power and is close to the rear end plane glass, which converges the light rays without substantially generating aberrations, thereby ensuring the imaging quality of the optical lens. Preferably, |F5 / F|≥1.

[0149] In the embodiment, the curvature radius R1 of the first side of the first lens and the focal length F of the optical lens satisfy the condition: R1 / F≥0.01. This arrangement makes the curvature radius of the first side of the first lens positive, i.e., the shape of the first side is convex, which can collect more light beams. Preferably, R1 / F≥0.5.

[0150] In the embodiment, the curvature radius R2 of the second side of the first lens and the focal length F of the optical lens satisfy the condition: R2 / F≤-0.01. This arrangement makes the curvature radius of the second side of the first lens negative, and the first side of the first lens is convex, so that the light rays passing through the first side of the first lens converge rapidly, reducing the size of the rear-end device and helping to miniaturize the optical lens. Preferably, R2 / F≤-0.5.

[0151] In the embodiment, the curvature radius R5 of the second side of the second lens and the focal length F of the optical lens satisfy the condition: R5 / F≥0.02. This arrangement makes the shape of the second side of the second lens concave, so that the light rays passing through the second lens diverge into the rear-end system, which can reduce the size of the rear-end device and help to miniaturize the optical lens. Preferably, R5 / F≥0.1.

[0152] In this embodiment, the radius of curvature R7 of the second side surface of the third lens satisfies the condition R7 / F ≤ -0.1 with the focal length F of the optical lens. This configuration makes the second side surface of the third lens convex, causing light rays passing through the third lens to converge, which helps in the miniaturization of the optical lens and improves the light throughput of the optical lens. Preferably, R7 / F ≤ -0.8.

[0153] In this embodiment, the radius of curvature R8 of the first side surface of the fourth lens satisfies the condition R8 / F ≥ 0.2 with the focal length F of the optical lens. This configuration makes the first side surface of the fourth lens convex, which is beneficial for converging light and contributes to the miniaturization of the optical lens. Preferably, R8 / F ≥ 1.

[0154] In this embodiment, the radius of curvature R9 of the second side surface of the fourth lens satisfies the condition R9 / F ≤ -0.1 with respect to the focal length F of the optical lens. This configuration makes the second side surface of the fourth lens convex, which is beneficial for converging light rays and produces virtually no aberrations, thus contributing to the miniaturization of the optical lens. Preferably, R9 / F ≤ -0.8.

[0155] In this embodiment, the radius of curvature R10 of the first side surface of the fifth lens satisfies the condition R10 / F ≥ 0.01 with the focal length F of the optical lens. This configuration makes the first side surface of the fifth lens convex, which is beneficial for converging light rays and produces virtually no aberrations, thus contributing to the miniaturization of the optical lens. Preferably, R10 / F ≥ 0.05.

[0156] In this embodiment, the radius of curvature R11 of the second side surface of the fifth lens satisfies the condition R11 / F ≥ 0.01 with the focal length F of the optical lens. This configuration makes the first side surface of the fifth lens convex, which is beneficial for converging light rays and produces virtually no aberrations, thus contributing to the miniaturization of the optical lens. Preferably, R11 / F ≥ 0.05.

[0157] Example 2

[0158] like Figures 1 to 10 As shown, the optical lens includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens has positive optical power; the second lens has negative optical power; the third lens has positive optical power; the fourth lens has positive optical power; and the fifth lens has optical power. The total optical length TTL of the optical lens and the focal length F of the optical lens satisfy the following condition: TTL / F≤3.

[0159] By setting the first lens as positive focal power, it is beneficial to converge the incident light, beneficial to reduce the aperture of the rear end lens of the optical lens, beneficial to the miniaturization of the optical lens, and the first side of the first lens is convex, and the second side of the first lens is convex, which is beneficial to increase the projection range of the optical lens, and provide higher appearance performance in vehicle lamp lighting application. The second lens is set as negative focal power, so that the light converging through the first lens is divergent, balancing the large aberration generated by the light after the first lens. The third lens is set as positive focal power, so as to converge the light, reduce the aperture of the rear end lens of the optical lens, and be beneficial to the miniaturization of the optical lens. The fourth lens with positive focal power cooperates with the third lens with positive focal power to further converge the light, realize fast converging of the light, and will not cause large aberration caused by too large light deflection angle, and ensure the imaging quality. The first side of the fifth lens is set as convex, and the second side of the fifth lens is set as concave, which is beneficial to increase the light flux and realize high imaging quality, and high refractive index and low Abbe number material is selected to compensate the on-axis aberration of the optical lens and improve the imaging quality. By limiting the TTL / F within a reasonable range, it is beneficial to limit the relationship between the total optical length and the focal length, and beneficial to the miniaturization of the optical lens.

[0160] Preferably, the optical total length TTL of the optical lens and the focal length F of the optical lens satisfy: TTL / F≤2.5.

[0161] Alternatively, the first side of the second lens is convex, and the second side of the second lens is concave. In this way, the second lens is concave to the second side, so that the light passing through the diaphragm is smoothly transitioned, and the large-angle light is as much as possible to enter to improve the illumination.

[0162] Of course, the first side of the second lens can also be a plane, and the second side of the second lens is concave. When the second lens diverges the light, it can balance the large aberration generated after the first lens, and make the light smoothly, reduce the generation of aberration.

[0163] The first side of the second lens can also be concave, and the second side of the second lens is concave. In this way, the second lens is double concave, which can make the light passing through the diaphragm smoothly transition.

[0164] Alternatively, the first side of the third lens is convex. In this way, the third lens is double convex, so that the third lens is thick in the middle and thin at the edge, to balance the remaining aberration after the first lens and the second lens are matched.

[0165] The first side of the third lens can also be a plane. In this way, the third lens is shaped towards the image side, thick in the middle and thin at the edge, to balance the remaining aberration after the first lens and the second lens are matched.

[0166] Specifically, 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, which is beneficial to the convergence of light rays by the fourth lens, and the double-convex form balances the remaining aberration of the front optical system.

[0167] Specifically, 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. In this way, the fifth lens is a concave second side meniscus shape, which makes the light ray trend transition smoothly and reduces the large-angle deflection of the light rays, so as to reduce the aberration.

[0168] Optionally, the fifth lens has a positive focal power. In this way, it is beneficial to collect more light rays into the rear optical lens to increase the light flux and achieve high imaging quality.

[0169] Optionally, the fifth lens has a negative focal power. In this way, it is beneficial to disperse the light rays passing through the fourth lens by the fifth lens, so as to realize a large image surface and increase the illumination range under the condition of ensuring the light flux.

[0170] Specifically, the first lens and the second lens are aspherical lenses. The first lens and the second lens are set as aspherical lenses, which can improve the resolving power of the optical lens. Of course, one of the first lens and the second lens can also be aspherical.

[0171] In the embodiment, the optical lens further comprises a diaphragm, which is arranged between the first lens and the second lens. The diaphragm is arranged between the first lens and the second lens, which can quickly converge the light beam and reduce the aperture of the rear lens, and is beneficial to the miniaturization of the optical lens.

[0172] Optionally, the material of the first lens is PMMA (organic glass). The material of the first lens is preferably PMMA which can resist 120 DEG C high temperature. The transmittance of this material does not decay with the increase of the thickness of the lens, and it can have high transmittance without coating an antireflection film, which ensures the overall light efficiency while saving costs.

[0173] Optionally, the material of the second lens is COC plastic. The material of the second lens is preferably COC plastic which can resist 120 DEG C high temperature and has a thermal expansion coefficient close to that of the first lens, so as to effectively improve the thermal compensation performance after the second lens is matched with the first lens.

[0174] In the embodiment, the edge of the second side surface of the first lens is reversely curved. The edge of the second side surface of the first lens is reversely curved, which can improve the edge field of view resolving power. In the embodiment, the focal length F of the optical lens and the entrance pupil diameter D of the optical lens satisfy: F / D≤1.2. By limiting F / D within a reasonable range, the amount of light entering the optical lens can be controlled to ensure a large light flux and have a small FNO. The entrance pupil of the optical lens refers to the image formed by the diaphragm of the optical lens in the object space. Preferably, F / D≤1.

[0175] In the embodiment, the air interval BFL between the chip surface of the optical lens and the center of the second side of the fifth lens and the total length TTL of the optical lens satisfy: BFL / TTL≥0.01. In the case of the same total length, the back focus of the optical lens can be effectively increased, which is beneficial to the arrangement of the chip and the electronic components and the assembly of the optical lens. Preferably, BFL / TTL≥0.05.

[0176] In the embodiment, the radius of curvature R1 of the first side of the first lens and the radius of curvature R2 of the second side of the first lens satisfy: |R1 / R2|≤2. By limiting |R1 / R2| within a reasonable range, the shape of the second lens can be reasonably set, more large-angle light can be collected into the rear optical system, and the light transition between the first lens and the second lens is smooth, which is beneficial to improve the resolution. Preferably, |R1 / R2|≤2

[0177] In the embodiment, the combined focal length F23 of the second lens and the third lens and the focal length F of the optical lens satisfy: |F23 / F|≥1.8. By setting the focal length of the first lens and the second lens within a reasonable range, the larger the combined focal length of the first lens and the second lens, the more the remaining aberrations are generated while compensating for chromatic aberration. Preferably, |F23 / F|≥2.8.

[0178] In the embodiment, the focal length F2 of the second lens and the focal length F3 of the third lens satisfy: |F2 / F3|≤1.8. By limiting |F2 / F3| within a reasonable range, the light trend between the first lens and the fourth lens can be controlled, the aberration caused by the deflection of large-angle light is reduced, the lenses are more compact, and the optical lens is miniaturized. Preferably, |F2 / F3|≤1.2.

[0179] In the embodiment, the focal length F1 of the first lens and the focal length F2 of the second lens satisfy: |F1 / F2|≤2. By limiting |F1 / F2| within a reasonable range, it is helpful for the smooth transition of light, which is beneficial to correct chromatic aberration, improve imaging quality, and effectively improve the thermal compensation of the optical lens when the refractive power of the plastic lens is similar.

[0180] In the embodiment, the radius of curvature R10 of the first side surface of the fifth lens, the radius of curvature R11 of the second side surface of the fifth lens and the central thickness d5 of the fifth lens satisfy: 0.2≤R10 / (R11+d5)≤2. By limiting R10 / (R11+d5) in a reasonable range, the shape of the fifth lens is close to a concentric circle, and the special lens shape arrangement causes the edge ray to have a difference in optical path length from the central ray, so as to diverge the central ray, reduce the aberration caused by the deflection of the fourth lens on the light ray, and ensure the imaging quality of the optical lens. Preferably, 0.3≤R10 / (R11+d5)≤1.5.

[0181] In the embodiment, the focal length F of the optical lens and the radius of curvature R1 of the first side surface of the first lens satisfy: F / R1≥0.2. By limiting F / R1≥0.2 in a reasonable range, it is helpful to make the incident light refraction angle change more moderate, avoid too strong refraction change to generate too much aberration, and facilitate the manufacture of the first lens, while reducing the tolerance sensitivity. Preferably, F / R1≥0.4.

[0182] In the embodiment, the focal length F3 of the third lens and the focal length F4 of the fourth lens satisfy: 0.2≤F3 / F4≤1.5. By limiting F3 / F4 in a reasonable range, it is helpful to gently converge the light rays, reduce the aperture of the rear element, and facilitate the miniaturization and low cost of the optical lens. Preferably, 0.5≤F3 / F4≤1.2.

[0183] In the embodiment, the focal length F of the optical lens and the total image height H corresponding to the maximum field angle of the optical lens satisfy: 1≤F / H≤3. By controlling the focal length and the image height of the optical lens in a reasonable range, it is helpful to improve the resolving power. Preferably, 1.8≤F / H≤2.6.

[0184] In the embodiment, the refractive index Nd5 of the fifth lens satisfies: Nd5≥1.6. By limiting the refractive index of the fifth lens in a range greater than or equal to 1.6, the material of the fifth lens is a high refractive index material, which is helpful to reduce the front aperture and improve the image quality. Preferably, Nd5≥1.65, and more preferably, Nd5≥1.75.

[0185] In the embodiment, the focal length F2 of the second lens and the focal length F of the optical lens satisfy: |F2 / F|≥0.5. The second lens is preferably a plastic transparent lens, and limiting |F2 / F| in a reasonable range can reasonably allocate the focal length of the second lens, which is helpful to achieve thermal compensation. Preferably, |F2 / F|≥0.8.

[0186] In the embodiment, the radius of curvature R2 of the second side surface of the first lens and the radius of curvature R4 of the first side surface of the second lens satisfy: 0.05≤|(R2-R4) / (R2+R4)|≤2. By limiting|(R2-R4) / (R2+R4)| within a reasonable range, aberration of the optical lens can be corrected, and when the light ray exiting from the first lens is incident on the first side surface of the second lens, the incident light ray is relatively gentle, thereby reducing the tolerance sensitivity of the optical lens. Preferably, 0.1≤|(R2-R4) / (R2+R4)|≤1.6.

[0187] In the embodiment, the focal length F of the optical lens, the effective focal length F3 of the third lens, and the radius of curvature R5 of the second side surface of the second lens satisfy: |F / F3|+|F / R5|≤4. By controlling |F / F3|+|F / R5| within a reasonable range, the radius of curvature of the surface of the second lens can be controlled, which can assist the incident light ray to enter the optical lens and effectively correct the astigmatism to improve the imaging quality. Preferably, |F / F3|+|F / R5|≤3.

[0188] In the embodiment, the full image height H corresponding to the maximum field angle of the optical lens, the focal length F of the optical lens, and the field angle θ of the optical lens satisfy: |(H-F*θ) / (F*θ)|≤1.5. By limiting|(H-F*θ) / (F*θ)| within a reasonable range, the focal length of the optical lens is increased under the condition that the field angle of the optical lens and the size of the imaging surface are unchanged, and the effect of highlighting the central region of the imaging surface is highlighted. Preferably, |(H-F*θ) / (F*θ)|≤1.

[0189] In the embodiment, the focal length F1 of the first lens and the focal length F of the optical lens satisfy: F1 / F≥0.01. The first lens has positive refractive power, which helps to increase the projection range of the optical lens, and at the same time provides a better appearance surface in the application of vehicle lamp illumination. Preferably, F1 / F≥0.5.

[0190] In the embodiment, the focal length F3 of the third lens and the focal length F of the optical lens satisfy: F3 / F≥0.01. The third lens has positive refractive power, which helps to further converge the light beam and reduce the lens aperture at the rear end of the optical lens. Preferably, F3 / F≥0.5.

[0191] In the embodiment, the focal length F5 of the fifth lens and the focal length F of the optical lens satisfy: |F5 / F|≥0.02. The fifth lens has positive or negative refractive power and is relatively close to the rear end plane glass, which converges the light ray without generating aberration, thereby ensuring the imaging quality of the optical lens. Preferably, |F5 / F|≥1.

[0192] In the embodiment, the curvature radius R1 of the first side surface of the first lens and the focal length F of the optical lens satisfy: R1 / F≥0.01. The curvature radius of the first side surface of the first lens is positive and is in the shape of a convex surface, so that more light beams can be collected. Preferably, R1 / F≥0.5.

[0193] In the embodiment, the curvature radius R2 of the second side surface of the first lens and the focal length F of the optical lens satisfy: R2 / F≤-0.01. The curvature radius of the second side surface of the first lens is negative, and the first side surface of the first lens is in the shape of a convex surface, so that the light rays passing through the first side surface of the first lens converge rapidly, the size of the rear-end device is reduced, and the miniaturization of the optical lens is facilitated. Preferably, R2 / F≤-0.5.

[0194] In the embodiment, the curvature radius R5 of the second side surface of the second lens and the focal length F of the optical lens satisfy: R5 / F≥0.02. The second side surface of the second lens is in the shape of a concave surface, so that the light rays passing through the second lens diverge into the rear-end system, the size of the rear-end device is reduced, and the miniaturization of the optical lens is facilitated. Preferably, R5 / F≥0.1.

[0195] In the embodiment, the curvature radius R7 of the second side surface of the third lens and the focal length F of the optical lens satisfy: R7 / F≤-0.1. The second side surface of the third lens is in the shape of a convex surface, so that the light rays passing through the third lens converge, the miniaturization of the optical lens is facilitated, and the luminous flux of the optical lens is improved. Preferably, R7 / F≤-0.8.

[0196] In the embodiment, the curvature radius R8 of the first side surface of the fourth lens and the focal length F of the optical lens satisfy: R8 / F≥0.2. The first side surface of the fourth lens is in the shape of a convex surface, which is conducive to converging light rays and facilitates the miniaturization of the optical lens. Preferably, R8 / F≥1.

[0197] In the embodiment, the curvature radius R9 of the second side surface of the fourth lens and the focal length F of the optical lens satisfy: R9 / F≤-0.1. The second side surface of the fourth lens is in the shape of a convex surface, which is conducive to converging light rays and does not substantially produce aberration, and facilitates the miniaturization of the optical lens. Preferably, R9 / F≤-0.8.

[0198] In the embodiment, the curvature radius R10 of the first side surface of the fifth lens and the focal length F of the optical lens satisfy: R10 / F≥0.01. The first side surface of the fifth lens is in the shape of a convex surface, which is conducive to converging light rays and does not substantially produce aberration, and facilitates the miniaturization of the optical lens. Preferably, R10 / F≥0.05.

[0199] In the embodiment, the radius of curvature R11 of the second side surface of the fifth lens and the focal length F of the optical lens satisfy: R11 / F≥0.01. Such arrangement makes the first side surface of the fifth lens convex, which is beneficial to converging light rays and does not substantially generate aberration, and helps to miniaturize the optical lens. Preferably, R11 / F≥0.05.

[0200] In the present application, the maximum field of view FOV of the optical lens is associated with H, and the field of view corresponding to the image height is used.

[0201] Optionally, the optical lens described above can further comprise a filter for correcting color deviation and a protective glass for protecting the photosensitive element located on the imaging surface.

[0202] The optical lens in the present application can employ multiple lenses, for example, five lenses as described above. In the present application, at least one of the lens surfaces of each lens is an aspherical lens surface. The aspherical lens has the characteristic that the curvature continuously changes from the center of the lens to the periphery of the lens. Unlike the spherical lens which has a constant curvature from the center of the lens to the periphery of the lens, the aspherical lens has better curvature radius characteristics, and has the advantages of improving the distortion aberration and improving the astigmatism aberration. After using the aspherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality.

[0203] In the exemplary embodiment, the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens can all be glass lenses. The optical lens made of glass can suppress the shift of the back focal length of the optical lens with temperature change, so as to improve the system stability. At the same time, using glass material can avoid the imaging blur of the lens caused by the high and low temperature changes in the use environment, which affects the normal use of the lens. For example, the optical lens with all-glass design has a wide temperature range, and can maintain stable optical performance in the range of -40°C to 105°C. Specifically, when the image quality and reliability are focused on, the first lens to the seventh lens can all be glass aspherical lenses. Of course, in the application field where the temperature stability requirement is low, the first lens to the fifth lens in the optical lens can also be made of plastic. Using plastic to make optical lenses can effectively reduce the manufacturing cost. Of course, the first lens to the fifth lens in the optical lens can also be made of plastic and glass.

[0204] The present application realizes the lens design with large light and high resolving power by reasonable collocation of material, surface type, and power of each lens, and design of the center thickness of each lens and the on-axis spacing between each lens under the premise of using only 5 lenses; the light trend is gentle by reasonable setting of the focal length of the lens, and the dramatic change of the external environment will not cause significant decrease of the resolving power; the lens miniaturization is realized while meeting the high resolution, the cost is low and the chromatic aberration is small, the color edge of the far distance projection image is small, the fixed focus projection distance is 25 m, and the high resolving power is achieved within the range of 20-25 m.

[0205] In particular, in the field of intelligent projection type headlamps, the smaller front aperture and the convex first surface on the object side can provide better appearance performance in limited space.

[0206] The present application also provides an electronic device comprising the optical lens and an imaging element for converting the optical image formed by the optical lens into an electrical signal. The imaging element can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor device (CMOS). The electronic device can be a separate imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone. The electronic device is equipped with the optical lens described above.

[0207] However, those skilled in the art should understand that the number of lenses constituting the optical lens can be changed without departing from the technical solutions claimed by the present application, to obtain the various results and advantages described in the present specification. For example, although five lenses are described as an example in the embodiments, the optical lens is not limited to including five lenses. If necessary, the optical lens can also include other numbers of lenses.

[0208] The specific surface type and parameters of the optical lens applicable to the above embodiments are further described below with reference to the accompanying drawings.

[0209] It should be noted that any one of the following examples 1 to 10 is applicable to all embodiments of the present application.

[0210] Example 1

[0211] As shown in Figure 1 The structural schematic diagram of the optical lens of example 1 is shown.

[0212] As shown in Figure 1 The optical lens includes, in order from the object side to the image side, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging surface IMA.

[0213] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is a convex surface, and the second side surface S2 of the first lens is a convex surface. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is a convex surface, and the second side surface S5 of the second lens is a concave surface. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is a convex surface, and the second side surface S7 of the third lens is a convex surface. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is a convex surface, and the second side surface S9 of the fourth lens is a convex surface. The fifth lens L5 has positive refractive power, the first side surface S10 of the fifth lens is a convex surface, and the second side surface S11 of the fifth lens is a concave surface. Light from an object sequentially passes through the surfaces S1 to S11 and is finally imaged on the imaging plane IMA.

[0214] In the present example, the focal length F of the optical lens is 30.353 mm, and the total track length TTL of the optical lens is 63.9554 mm.

[0215] In the present example, the diaphragm is located between the first lens and the second lens, close to the first side surface of the second lens.

[0216] Table 1 shows the basic structure parameter table of the optical lens of Example 1, wherein the units of the radius of curvature Radius and the thickness Thickness / distance are millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0217]

[0218]

[0219] Table 1

[0220] In Example 1, the first side surface and the second side surface of part of the first lens L1 to the fifth lens L5 have aspheric surfaces, and the surface type of each aspheric lens can be defined by, but not limited to, the following aspheric surface formula:

[0221]

[0222] wherein x is the distance sag of the aspheric surface at a height of h along the optical axis direction from the vertex of the aspheric surface; c is the paraxial curvature of the aspheric surface, c = 1 / R (i.e., the paraxial curvature c is the inverse of the radius of curvature R in Table 1 above); k is the conic coefficient; and A is the high-order term coefficient.

[0223] The following Table 2 shows the conic coefficient k and the high-order term coefficients A (4th order term coefficient), B (6th order term coefficient), C (8th order term coefficient), and D (10th order term coefficient) of the aspheric lens surfaces S1, S2, S4, and S5 that can be used in Example 1.

[0224] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -7.8515 -1.2584E-06 -2.2143E-09 0.0000E+00 0.0000E+00 2 -8.6995 -1.2371E-06 6.0308E-09 -2.1452E-12 4.1506E-15 4 3.6334 4.0582E-06 -1.2737E-08 -1.5395E-11 3.8915E-14 5 -1.8215 -7.4130E-06 -8.8746E-10 2.8441E-11 -5.9309E-14

[0225] Table 2

[0226] Example Two

[0227] As Figure 2 A structural diagram of the optical lens of Example Two is shown. In this example and the following examples, for the sake of brevity, some descriptions similar to Example One will be omitted.

[0228] As Figure 2 shown, the optical lens includes, in order from the object side to the image side: a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an image plane IMA.

[0229] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is a convex surface, and the second side surface S2 of the first lens is a convex surface. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is a convex surface, and the second side surface S5 of the second lens is a concave surface. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is a convex surface, and the second side surface S7 of the third lens is a convex surface. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is a convex surface, and the second side surface S9 of the fourth lens is a convex surface. The fifth lens L5 has positive refractive power, the first side surface S10 of the fifth lens is a convex surface, and the second side surface S11 of the fifth lens is a concave surface. Light from the object passes through each of the surfaces S1 to S11 in order and is finally imaged on the image plane IMA.

[0230] In this example, the focal length F of the optical lens is 30.429 mm, and the total track length TTL of the optical lens is 64.005 mm.

[0231] In this example, the stop is located between the first lens and the second lens, close to the first side surface of the second lens.

[0232] Table 3 shows a table of basic structural parameters of the optical lens of Example Two, wherein the units of the radius of curvature Radius and the thickness / distance are millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0233] Surf Radius Thickness Nd Vd 1 53.366 11.324 1.53 44.83 2 -33.915 9.810 3 Infinite -0.798 4 203.272 2.890 1.64 23.53 5 18.540 7.094 6 92.989 7.539 1.62 60.37 7 -51.287 1.000 8 65.723 7.604 1.62 60.37 9 -62.855 1.000 10 20.786 9.818 1.80 46.57 11 17.056 6.724 IMA Infinite

[0234] Table 3

[0235] The following Table 4 shows the conic coefficients k and the respective higher-order term coefficients that can be used for the aspherical lens surfaces S1, S2, S4, and S5 in Example Two.

[0236] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -7.8638 -1.2613E-06 -2.2164E-09 0.0000E+00 0.0000E+00 2 -8.7107 -1.2338E-06 6.0328E-09 -2.1454E-12 4.1457E-15 4 3.6135 4.0579E-06 -1.2738E-08 -1.5412E-11 3.8822E-14 5 -1.8219 -7.4184E-06 -9.0590E-10 2.8388E-11 -5.9453E-14

[0237] Table 4

[0238] Example Three

[0239] As Figure 3 A structural diagram of the optical lens of Example Three is shown. In this and the following examples, for the sake of brevity, some descriptions similar to those of Example One will be omitted.

[0240] As Figure 3 shown, the optical lens includes, in order from the object side to the image side: a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an image plane IMA.

[0241] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is a convex surface, and the second side surface S2 of the first lens is a convex surface. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is a plane, and the second side surface S5 of the second lens is a concave surface. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is a convex surface, and the second side surface S7 of the third lens is a convex surface. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is a convex surface, and the second side surface S9 of the fourth lens is a convex surface. The fifth lens L5 has positive refractive power, the first side surface S10 of the fifth lens is a convex surface, and the second side surface S11 of the fifth lens is a concave surface. Light from the object passes through the surfaces S1 to S11 in order and is finally imaged on the image plane IMA.

[0242] In this example, the focal length F of the optical lens is 30.547 mm, and the total track length TTL of the optical lens is 65.185 mm. In this example, the second side surface of the first lens has at least one inflection point, is convex at the central chief ray, and is concave at the edge far chief ray. In this example, the stop is located between the first lens and the second lens, close to the first side surface of the second lens.

[0243] Table 5 shows the basic structural parameter table of the optical lens of Example Three, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0244] Surf Radius Thickness Nd Vd 1 45.197 12.978 1.53 44.83 2 -40.729 7.766 3 Infinite 1.749 4 Infinite 4.468 1.64 23.53 5 22.112 6.308 6 83.315 7.514 1.62 60.37 7 -52.363 1.000 8 52.385 7.442 1.62 60.37 9 -82.211 1.000 10 20.178 9.629 1.80 46.57 11 16.291 5.330 IMA Infinite

[0245] Table 5

[0246] The following Table 6 shows the conic constant k and the respective higher-order term coefficients of the aspherical lens surfaces S1, S2, and S5 that can be used in Example Three.

[0247] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -6.1108 -6.1317E-07 2.2624E-09 0.0000E+00 0.0000E+00 2 -8.8068 -1.0403E-06 5.3010E-09 1.0022E-12 1.0677E-14 5 -1.8792 -7.2288E-06 -6.4812E-10 3.6393E-11 -8.3844E-14

[0248] Table 6

[0249] Example Four

[0250] As Figure 4 A structure diagram of the optical lens of Example Four is shown. In this example and the following examples, some similar descriptions as Example One will be omitted for brevity.

[0251] As Figure 4 shown, the optical lens comprises, in order from the object side to the image side: a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an image plane IMA.

[0252] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is a convex surface, and the second side surface S2 of the first lens is a convex surface. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is a plane, and the second side surface S5 of the second lens is a concave surface. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is a convex surface, and the second side surface S7 of the third lens is a convex surface. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is a convex surface, and the second side surface S9 of the fourth lens is a convex surface. The fifth lens L5 has positive refractive power, the first side surface S10 of the fifth lens is a convex surface, and the second side surface S11 of the fifth lens is a concave surface. Light from the object passes through the surfaces S1 to S11 in order and is finally imaged on the image plane IMA.

[0253] In this example, the focal length F of the optical lens is 30.442 mm, and the total track length TTL of the optical lens is 65.176 mm. In this example, the second side surface of the first lens has at least one inflection point, which is convex at the central optical axis and concave at the edge optical axis. In this example, the stop is located between the first lens and the second lens, close to the first side surface of the second lens.

[0254] Table 7 shows the basic structure parameter table of the optical lens of Example Four, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0255] Surf Radius Thickness Nd Vd 1 45.056 12.988 1.53 44.83 2 -40.753 7.766 3 Infinite 1.749 4 Infinite 4.453 1.64 23.53 5 22.109 6.294 6 83.452 7.499 1.62 60.37 7 -52.349 1.000 8 52.440 7.453 1.62 60.37 9 -82.206 1.000 10 20.077 9.644 1.80 46.57 11 16.295 5.330 IMA Infinite

[0256] Table 7

[0257] The following Table 8 shows the conic constant k and each high-order term coefficient of the aspherical lens surfaces S1, S2, and S5 that can be used in Example Four.

[0258] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -6.1525 -6.1312E-07 2.2623E-09 0.0000E+00 0.0000E+00 2 -8.8442 -1.0403E-06 5.2671E-09 1.0023E-12 1.0656E-14 5 -1.8825 -7.2568E-06 -6.4797E-10 3.6992E-11 -8.3242E-14

[0259] Table 8

[0260] Example Five

[0261] As Figure 5A schematic diagram of the optical lens structure for Example 5 is shown. For the sake of brevity, descriptions similar to those in Example 1 will be omitted in this example and the following examples.

[0262] like Figure 5 As shown, the optical lens, from the object side to the image side, includes the following components in sequence: first lens L1, aperture STO, second lens L2, third lens L3, fourth lens L4, fifth lens L5, and imaging plane IMA.

[0263] The first lens L1 has positive optical power, with its first side surface S1 being convex and its second side surface S2 being convex. The second lens L2 has negative optical power, with its first side surface S4 being convex and its second side surface S5 being concave. The third lens L3 has positive optical power, with its first side surface S6 being flat and its second side surface S7 being convex. The fourth lens L4 has positive optical power, with its first side surface S8 being convex and its second side surface S9 being convex. The fifth lens L5 has positive optical power, with its first side surface S10 being convex and its second side surface S11 being concave. Light from the object passes sequentially through surfaces S1 to S11 and is finally imaged onto the imaging plane IMA.

[0264] In this example, the focal length F of the optical lens is 29.976mm, and the total length TTL of the optical lens is 64.045mm. In this example, the aperture stop is located between the first lens and the second lens, near the first side of the second lens.

[0265] Table 9 shows the basic structural parameters of the optical lens in Example 5, where the radius of curvature (Radius) and thickness / distance are in millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0266] Surf Radius Thickness Nd Vd 1 48.494 12.646 1.53 44.83 2 -32.122 9.321 3 Infinite -0.355 4 246.560 2.751 1.64 23.53 5 19.376 7.897 6 Infinite 7.035 1.62 60.37 7 -34.398 1.000 8 61.597 7.163 1.62 60.37 9 -75.050 0.980 10 20.014 9.599 1.80 46.57 11 16.846 6.007 IMA Infinite

[0267] Table 9

[0268] Table 10 below shows the conic coefficient k and the coefficients of each higher-order term for the aspherical lens surfaces S1, S2, S4 and S5 in Example 5.

[0269] Order of higher terms / 4 6 8 Surf K A B C 1 0.0000 -1.1524E-09 0.0000E+00 0.0000E+00 2 0.0000 5.7177E-09 -1.3781E-12 5.7566E-15 4 0.0000 -1.4690E-08 -1.9809E-11 3.2029E-14 5 0.0000 -4.1467E-10 3.0714E-11 -7.4612E-14

[0270] Table 10

[0271] Example 6

[0272] like Figure 6 A schematic diagram of the optical lens structure for Example Six is ​​shown. For the sake of brevity, descriptions similar to those in Example One will be omitted in this example and the following examples.

[0273] like Figure 6 As shown, the optical lens, from the object side to the image side, includes the following components in sequence: first lens L1, aperture STO, second lens L2, third lens L3, fourth lens L4, fifth lens L5, and imaging plane IMA.

[0274] The first lens L1 has positive optical power, with its first side surface S1 being convex and its second side surface S2 being convex. The second lens L2 has negative optical power, with its first side surface S4 being convex and its second side surface S5 being concave. The third lens L3 has positive optical power, with its first side surface S6 being flat and its second side surface S7 being convex. The fourth lens L4 has positive optical power, with its first side surface S8 being convex and its second side surface S9 being convex. The fifth lens L5 has positive optical power, with its first side surface S10 being convex and its second side surface S11 being concave. Light from the object passes sequentially through surfaces S1 to S11 and is finally imaged onto the imaging plane IMA.

[0275] In this example, the focal length F of the optical lens is 29.952mm, and the total length TTL of the optical lens is 63.847mm.

[0276] In this example, the aperture stop is located between the first lens and the second lens, near the first side of the second lens.

[0277] Table 11 shows the basic structural parameters of the optical lens in Example 6, where the radius of curvature (Radius) and thickness / distance are in millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0278] Surf Radius Thickness Nd Vd 1 47.868 12.559 1.53 44.83 2 -32.386 9.350 3 Infinite -0.354 4 246.957 2.761 1.64 23.53 5 19.375 7.880 6 Infinite 7.007 1.62 60.37 7 -34.401 1.020 8 60.750 7.101 1.62 60.37 9 -76.140 0.980 10 19.981 9.598 1.80 46.57 11 16.839 5.945 IMA Infinite

[0279] Table 11

[0280] Table 12 below shows the conic coefficient k and the coefficients of each higher-order term for the aspherical lens surfaces S1, S2, S4 and S5 in Example 6.

[0281] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -8.2310 -9.6631E-07 -1.1516E-09 0.0000E+00 0.0000E+00 2 -8.2139 -1.9050E-06 5.6794E-09 -1.3819E-12 5.6790E-15 4 -64.7160 3.5915E-06 -1.4694E-08 -1.9826E-11 3.1966E-14 5 -1.8459 -7.4004E-06 -3.9719E-10 3.0566E-11 -7.6098E-14

[0282] Table 12

[0283] Example 7

[0284] like Figure 7 A schematic diagram of the optical lens in Example 7 is shown. For the sake of brevity, descriptions similar to those in Example 1 will be omitted in this example and the following examples.

[0285] like Figure 7As shown, the optical lens comprises, in order from the object side to the image side: a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an imaging plane IMA.

[0286] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is concave, and the second side surface S5 of the second lens is concave. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is convex, and the second side surface S7 of the third lens is convex. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is convex, and the second side surface S9 of the fourth lens is convex. The fifth lens L5 has positive refractive power, the first side surface S10 of the fifth lens is convex, and the second side surface S11 of the fifth lens is concave. Light from the object passes through the surfaces S1 to S11 in order and is finally imaged on the imaging plane IMA.

[0287] In this example, the focal length F of the optical lens is 30.454 mm, and the total length TTL of the optical lens is 65.018 mm. In this example, the second lens and the third lens are cemented together to form a cemented lens. In this example, the second side surface of the first lens has at least one inflection point, which is convex at the central far optical axis and concave at the edge far optical axis.

[0288] In this example, the stop is located between the first lens and the second lens, close to the first side surface of the second lens.

[0289] Table 13 shows the basic structural parameter table of the optical lens of Example Seven, wherein the units of the radius of curvature Radius and the thickness Thickness / distance are millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0290] Surf Radius Thickness Nd Vd 1 45.088 12.999 1.53 44.83 2 -61.994 12.919 3 Infinite 2.934 4 -40.388 4.928 1.64 23.53 5 70.890 0.000 6 70.890 7.449 1.62 60.37 7 -42.628 1.000 8 63.541 7.528 1.62 60.37 9 -133.053 1.000 10 18.650 9.073 1.80 46.57 11 18.355 5.189 IMA Infinite

[0291] Table 13

[0292] The following Table 14 shows the conic constant k and the high-order term coefficients of the aspherical lens surfaces S1, S2, and S4 that can be used in Example Seven.

[0293] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -0.4099 2.0360E-06 -4.0383E-09 0.0000E+00 0.0000E+00 2 -47.6525 -1.3482E-06 5.3177E-09 -2.1366E-12 3.3064E-15 4 -7.6537 3.0749E-06 -1.4806E-08 -3.1662E-11 -1.2575E-16

[0294] Table 14

[0295] Example Eight

[0296] As Figure 8 shows the structural schematic diagram of the optical lens of Example Eight. In this example and the following examples, part of the description similar to Example One will be omitted for brevity.

[0297] As shown in Figure 8 the optical lens comprises, in order from the object side to the image side: a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an image plane IMA.

[0298] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is convex, and the second side surface S2 of the first lens is convex. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is concave, and the second side surface S5 of the second lens is concave. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is convex, and the second side surface S7 of the third lens is convex. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is convex, and the second side surface S9 of the fourth lens is convex. The fifth lens L5 has positive refractive power, the first side surface S10 of the fifth lens is convex, and the second side surface S11 of the fifth lens is concave. Light from the object passes through the surfaces S1 to S11 in order and is finally imaged on the image plane IMA.

[0299] In the present example, the focal length F of the optical lens is 30.220 mm, and the total track length TTL of the optical lens is 64.996 mm. In the present example, the second lens and the third lens are cemented together to form a cemented lens, and in the present example, the second side surface of the first lens has at least one inflection point, which is convex at the central chief ray and concave at the edge far chief ray.

[0300] In the present example, the stop is located between the first lens and the second lens, close to the first side surface of the second lens.

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

[0302] Surf Radius Thickness Nd Vd 1 44.675 12.996 1.53 44.83 2 -63.662 12.932 3 Infinite 2.851 4 -42.412 4.926 1.64 23.53 5 68.647 0.000 6 68.647 7.501 1.62 60.37 7 -42.379 1.000 8 76.136 7.526 1.62 60.37 9 -100.422 1.000 10 18.551 9.146 1.80 46.57 11 18.106 5.120 IMA Infinite

[0303] Table 15

[0304] The following Table 16 shows the conic constant k and the high-order term coefficients of the aspherical lens surfaces S1, S2, and S4 that can be used in Example Eight.

[0305] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -0.4265 1.9854E-06 -3.9069E-09 0.0000E+00 0.0000E+00 2 -51.2136 -1.3038E-06 5.2200E-09 -2.1881E-12 3.5754E-15 4 -7.2280 2.9456E-06 -1.4992E-08 -3.2482E-11 -2.3125E-15

[0306] Table 16

[0307] Example Nine

[0308] As shown in Figure 9A structural diagram of the optical lens of Example Nine is shown. In this and the following examples, for the sake of brevity, some descriptions similar to those of Example One will be omitted.

[0309] As Figure 9 shown, the optical lens comprises, in order from the object side to the image side: a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an image plane IMA.

[0310] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is a convex surface, and the second side surface S2 of the first lens is a convex surface. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is a convex surface, and the second side surface S5 of the second lens is a concave surface. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is a convex surface, and the second side surface S7 of the third lens is a convex surface. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is a convex surface, and the second side surface S9 of the fourth lens is a convex surface. The fifth lens L5 has negative refractive power, the first side surface S10 of the fifth lens is a convex surface, and the second side surface S11 of the fifth lens is a concave surface. Light from the object passes through the surfaces S1 to S11 in order and is finally imaged on the image plane IMA.

[0311] In this example, the focal length F of the optical lens is 30.223 mm, and the total track length TTL of the optical lens is 64.425 mm.

[0312] In this example, the stop is located between the first lens and the second lens, close to the first side surface of the second lens.

[0313] Table 17 shows the basic structural parameter table of the optical lens of Example Nine, wherein the units of the radius of curvature Radius and the thickness Thickness / distance are millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0314] Surf Radius Thickness Nd Vd 1 56.340 12.791 1.53 44.83 2 -31.464 9.621 3 Infinite -0.793 4 176.317 2.986 1.64 23.53 5 18.458 7.147 6 95.664 7.500 1.62 60.37 7 -42.995 1.000 8 54.777 7.500 1.62 60.37 9 -67.125 1.000 10 21.199 9.380 1.80 46.57 11 16.157 6.293 IMA Infinite

[0315] Table 17

[0316] The following Table 18 shows the conic constant k and each high-order term coefficient of the aspheric lens surfaces S1, S2, and S4 that can be used in Example Nine.

[0317] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -7.3116 -1.3122E-06 -2.5303E-09 0.0000E+00 0.0000E+00 2 -8.7204 -1.2334E-06 5.2789E-09 -4.3226E-12 3.7382E-16 4 -3.9416 3.8770E-06 -1.2914E-08 -1.5201E-11 4.1616E-14 5 -1.7925 -7.2504E-06 -7.7647E-10 2.9051E-11 -5.6572E-14

[0318] Table 18

[0319] Example Ten

[0320] As Figure 10A structural diagram of the optical lens of example ten is shown. In the present example and the following examples, for the sake of brevity, some descriptions similar to example one will be omitted.

[0321] As shown in Figure 10 the optical lens comprises, in order from the object side to the image side: a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and an image plane IMA.

[0322] The first lens L1 has positive refractive power, the first side surface S1 of the first lens is a convex surface, and the second side surface S2 of the first lens is a convex surface. The second lens L2 has negative refractive power, the first side surface S4 of the second lens is a convex surface, and the second side surface S5 of the second lens is a concave surface. The third lens L3 has positive refractive power, the first side surface S6 of the third lens is a convex surface, and the second side surface S7 of the third lens is a convex surface. The fourth lens L4 has positive refractive power, the first side surface S8 of the fourth lens is a convex surface, and the second side surface S9 of the fourth lens is a convex surface. The fifth lens L5 has negative refractive power, the first side surface S10 of the fifth lens is a convex surface, and the second side surface S11 of the fifth lens is a concave surface. Light from the object passes through each surface S1 to S11 in order and is finally imaged on the image plane IMA.

[0323] In the present example, the focal length F of the optical lens is 30.134 mm, and the total track length TTL of the optical lens is 64.569 mm.

[0324] In the present example, the stop is located between the first lens and the second lens, close to the first side surface of the second lens.

[0325] Table 19 shows a basic structural parameter table of the optical lens of example eight, wherein the units of the radius of curvature Radius and the thickness / distance Thickness are millimeters (mm). Surf is the surface number of the lens, Nd is the refractive index, and Vd is the Abbe number.

[0326] Surf Radius Thickness Nd Vd 1 57.544 13.000 1.53 44.83 2 -30.785 9.633 3 Infinite -0.872 4 150.324 3.131 1.64 23.53 5 17.678 6.983 6 84.918 7.500 1.62 60.37 7 -49.799 1.000 8 51.901 7.500 1.62 60.37 9 -70.058 1.000 10 21.200 9.380 1.80 46.57 11 16.159 6.314 IMA Infinite

[0327] Table 19

[0328] The following table 20 shows the conic coefficients k and the respective high-order term coefficients of the aspherical lens surfaces S1, S2, and S4 that can be used in example eight.

[0329] Order of higher terms / 4 6 8 10 Surf K A B C D 1 -6.3780 -1.3648E-06 -3.3078E-09 0.0000E+00 0.0000E+00 2 -9.4454 -1.5875E-06 5.1997E-09 -3.9788E-12 1.7295E-16 4 -5.5291 3.8270E-06 -1.3193E-08 -1.5708E-11 4.2199E-14 5 -1.7951 -7.2882E-06 -8.4188E-10 2.9570E-11 -5.4131E-14

[0330] Table 20

[0331] In summary, examples one to ten all satisfy the relationships shown in table 21-1 and table 21-2.

[0332] Parameter / Example 1 2 3 4 5 F / D 0.704 0.705 0.697 0.699 0.754 BFL / TTL 0.105 0.105 0.082 0.082 0.094 |R1 / R2| 1.576 1.574 1.110 1.106 1.510 |F23 / F| 4.645 4.624 6.448 6.499 5.877 TTL / F 2.107 2.103 2.134 2.141 2.137 |F2 / F3| 0.590 0.589 0.652 0.651 0.595 |F1 / F2| 1.276 1.275 1.232 1.231 1.166 R10 / (R11+d5) 0.771 0.773 0.778 0.774 0.757 F / R1 0.568 0.570 0.676 0.676 0.618 F3 / F4 1.025 1.026 1.005 1.005 0.996 F / H 2.310 2.310 2.310 2.308 2.271 Nd5 1.804 1.804 1.804 1.804 1.804 |F2 / F| 1.050 1.048 1.124 1.128 1.095 |(R2-R4) / (R2+R4)| 1.401 1.401 / / 1.300 |F / F3|+|F / R5| 2.199 2.204 1.961 1.954 2.090 |(H-F*θ) / (F*θ)| 0.965 0.965 0.965 0.965 0.964 F1 / F 1.340 1.336 1.385 1.389 1.276 F3 / F 1.781 1.778 1.725 1.732 1.841 |F5 / F| 19.237 21.821 31.752 25.025 12.372 R1 / F 1.761 1.754 1.480 1.480 1.618 R2 / F -1.118 -1.115 -1.333 -1.339 -1.072 R5 / F 0.611 0.609 0.724 0.726 0.646 R7 / F -1.690 -1.685 -1.714 -1.720 -1.148 R8 / F 2.166 2.160 1.715 1.723 2.055 R9 / F -2.070 -2.066 -2.691 -2.700 -2.504 R10 / F 0.684 0.683 0.661 0.660 0.668 R11 / F 0.564 0.561 0.533 0.535 0.562

[0333] Table 21-1

[0334] Parameter / Example 6 7 8 9 10 F / D 0.752 0.762 0.760 0.703 0.702 BFL / TTL 0.093 0.080 0.079 0.098 0.098 |R1 / R2| 1.478 0.727 0.702 1.791 1.869 |F23 / F| 5.855 170.310 35.290 5.590 5.182 TTL / F 2.132 2.135 2.151 2.132 2.143 |F2 / F3| 0.595 0.897 0.927 0.617 0.610 |F1 / F2| 1.165 1.298 1.281 1.234 1.260 R10 / (R11+d5) 0.756 0.680 0.681 0.830 0.830 F / R1 0.626 0.675 0.676 0.536 0.524 F3 / F4 0.998 0.626 0.611 1.506 1.050 F / H 2.272 2.302 2.301 2.289 2.283 Nd5 1.804 1.804 1.804 1.804 1.804 |F2 / F| 1.095 1.290 1.324 1.067 1.042 |(R2-R4) / (R2+R4)| 1.302 0.211 0.200 1.434 1.515 |F / F3|+|F / R5| 2.089 1.125 1.140 2.215 2.290 |(H-F*θ) / (F*θ)| 0.964 0.965 0.965 0.965 0.965 F1 / F 1.276 1.675 1.696 1.317 1.313 F3 / F 1.843 1.439 1.428 1.731 1.708 F5 / F 12.075 3.694 3.771 16.544 16.592 R1 / F 1.598 1.481 1.478 1.864 1.910 R2 / F -1.081 -2.036 -2.107 -1.041 -1.022 R5 / F 0.647 2.328 2.272 0.611 0.587 R7 / F -1.149 -1.400 -1.402 -1.588 -1.653 R8 / F 2.028 2.086 2.519 1.812 1.722 R9 / F -2.542 -4.369 -3.323 -2.221 -2.325 R10 / F 0.667 0.612 0.614 0.701 0.704 R11 / F 0.562 0.603 0.599 0.535 0.536

[0335] Tables 21-2, 22-1, and 22-2 give the effective focal length F of the optical imaging lenses for Examples 1 to 10, and the effective focal lengths of each lens from F1 to F5, etc. (unit: mm).

[0336] Parameter / Example 1 2 3 4 5 R1 53.450 53.366 45.197 45.056 48.494 R2 -33.925 -33.915 -40.729 -40.753 -32.122 R4 203.214 203.272 Infinite Infinite 246.560 R5 18.540 18.540 22.112 22.109 19.376 R6 92.715 92.989 83.315 83.452 Infinite R7 -51.287 -51.287 -52.363 -52.349 -34.398 R8 65.740 65.723 52.385 52.440 61.597 R9 -62.820 -62.855 -82.211 -82.206 -75.050 R10 20.765 20.786 20.178 20.077 20.014 R11 17.128 17.056 16.291 16.295 16.846 F1 40.666 40.640 42.315 42.270 38.248 F2 -31.882 -31.882 -34.344 -34.340 -32.816 F23 -140.977 -140.699 -196.963 -197.832 -176.164 F3 54.061 54.116 52.706 52.727 55.184 F4 52.732 52.741 52.445 52.479 55.389 F5 583.896 663.999 969.930 761.802 370.851 D 43.091 43.190 43.830 43.563 39.739 TTL 63.955 64.005 65.185 65.176 64.045 BFL 6.725 6.724 5.330 5.330 6.007 F 30.353 30.429 30.547 30.442 29.976 d5 9.817 9.818 9.629 9.644 9.599 F.NO 0.704 0.705 0.697 0.699 0.754 H 13.142 13.174 13.222 13.192 13.200 θ 12.368 12.368 12.369 12.369 12.368

[0337] Table 22-1

[0338] Parameter / Example 6 7 8 9 10 R1 47.868 45.088 44.675 56.340 57.544 R2 -32.386 -61.994 -63.662 -31.464 -30.785 R4 246.957 -40.388 -42.412 176.317 150.324 R5 19.375 70.890 68.647 18.458 17.678 R6 Infinite 70.890 68.647 95.664 84.918 R7 -34.401 -42.628 -42.379 -47.995 -49.799 R8 60.750 63.541 76.136 54.777 51.901 R9 -76.140 -133.053 -100.422 -67.125 -70.058 R10 19.981 18.650 18.551 21.199 21.200 R11 16.839 18.355 18.106 16.157 16.159 F1 38.231 51.003 51.267 39.799 39.558 F2 -32.811 -39.281 -40.022 -32.260 -31.407 F23 -175.374 5186.566 1066.454 -168.958 -156.156 F3 55.189 43.811 43.156 52.323 51.460 F4 55.310 70.020 70.629 49.561 48.987 F5 361.664 112.487 113.945 -499.997 -499.990 D 39.849 39.941 39.780 43.022 42.896 TTL 63.847 65.018 64.996 64.425 64.569 BFL 5.945 5.189 5.120 6.293 6.314 F 29.952 30.454 30.220 30.223 30.134 d5 9.598 9.073 9.146 9.380 9.380 F.NO 0.752 0.762 0.760 0.703 0.702 H 13.183 13.228 13.134 13.202 13.201 θ 12.368 12.367 12.367 12.368 12.368

[0339] Table 22-2

[0340] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0341] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0342] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0343] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An optical lens, characterized in that, The optical lens has a total of five optical power lenses, and the optical lens includes: A first lens, having positive optical power, having a first convex side surface and a second convex side surface; The second lens has negative optical power and its second side surface is concave. The third lens has positive optical power, and the second side surface of the third lens is convex. The fourth lens has positive optical power, and the first side surface of the fourth lens is convex, and the second side surface of the fourth lens is convex. The fifth lens has optical power, the first side of the fifth lens is convex, and the second side of the fifth lens is concave; The focal length F1 of the first lens and the focal length F2 of the second lens satisfy the following condition: 1.165≤|F1 / F2|≤2; The focal length F5 of the fifth lens and the focal length F of the optical lens satisfy the following condition: 3.694 ≤ |F5 / F| ≤ 31.752; The air gap BFL between the chip surface of the optical lens and the center of the second side surface of the fifth lens and the total optical length TTL of the optical lens satisfy the following condition: 0.01≤BFL / TTL≤0.105; The first side is the object side, and the second side is the image side.

2. The optical lens according to claim 1, characterized in that, The first side surface of the second lens is convex.

3. The optical lens according to claim 1, characterized in that, The first side surface of the second lens is a plane.

4. The optical lens according to claim 1, characterized in that, The first side surface of the second lens is concave.

5. The optical lens according to claim 1, characterized in that, The first side surface of the third lens is convex.

6. The optical lens according to claim 1, characterized in that, The first side surface of the third lens is a plane.

7. The optical lens according to claim 1, characterized in that, The fifth lens has positive optical power.

8. The optical lens according to claim 1, characterized in that, The fifth lens has negative optical power.

9. The optical lens according to claim 1, characterized in that, The first lens and / or the second lens are aspherical lenses.

10. The optical lens according to claim 1, characterized in that, The optical lens also includes an aperture stop, which is disposed between the first lens and the second lens.

11. The optical lens according to claim 1, characterized in that, The material of the first lens is PMMA.

12. The optical lens according to claim 1, characterized in that, The material of the second lens is COC plastic.

13. The optical lens according to claim 1, characterized in that, The second side surface of the first lens has at least one inflection point.

14. The optical lens according to any one of claims 1-13, characterized in that, The focal length F of the optical lens and the entrance pupil diameter D of the optical lens satisfy the following condition: 0.697≤F / D≤1.

2.

15. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R1 of the first side surface of the first lens and the radius of curvature R2 of the second side surface of the first lens satisfy the following condition: 0.702≤|R1 / R2|≤3.

16. The optical lens according to any one of claims 1-13, characterized in that, The combined focal length F23 of the second lens and the third lens satisfies the following relationship with the focal length F of the optical lens: 1.8 ≤ |F23 / F| ≤ 170.

31.

17. The optical lens according to any one of claims 1-13, characterized in that, The total optical length TTL of the optical lens and the focal length F of the optical lens satisfy the following condition: 2.103≤TTL / F≤3.

18. The optical lens according to any one of claims 1-13, characterized in that, The focal length F2 of the second lens and the focal length F3 of the third lens satisfy the following condition: 0.589≤|F2 / F3|≤1.

8.

19. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R10 of the first side surface of the fifth lens, the radius of curvature R11 of the second side surface of the fifth lens, and the center thickness d5 of the fifth lens satisfy the following condition: 0.2≤R10 / (R11+d5)≤2.

20. The optical lens according to any one of claims 1-13, characterized in that, The focal length F of the optical lens and the radius of curvature R1 of the first side surface of the first lens satisfy the following condition: 0.2≤F / R1≤0.

676.

21. The optical lens according to any one of claims 1-13, characterized in that, The focal length F3 of the third lens and the focal length F4 of the fourth lens satisfy the following condition: 0.2 ≤ F3 / F4 ≤ 1.

5.

22. The optical lens according to any one of claims 1-13, characterized in that, The focal length F of the optical lens and the holographic height H corresponding to the maximum field of view of the optical lens satisfy the following condition: 1 ≤ F / H ≤ 3.

23. The optical lens according to any one of claims 1-13, characterized in that, The refractive index Nd5 of the fifth lens satisfies: 1.6≤Nd5≤1.

804.

24. The optical lens according to any one of claims 1-13, characterized in that, The focal length F2 of the second lens and the focal length F of the optical lens satisfy the following condition: 0.5 ≤ |F2 / F| ≤ 1.

324.

25. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R2 of the second side surface of the first lens and the radius of curvature R4 of the first side surface of the second lens satisfy the following condition: 0.05≤|(R2-R4) / (R2+R4)|≤2.

26. The optical lens according to any one of claims 1-13, characterized in that, The focal length F of the optical lens, the effective focal length F3 of the third lens, and the radius of curvature R5 of the second side surface of the second lens satisfy the following condition: 1.125≤|F / F3|+|F / R5|≤4.

27. The optical lens according to any one of claims 1-13, characterized in that, The holographic height H corresponding to the maximum field of view of the optical lens, the focal length F of the optical lens, and the field of view θ of the optical lens satisfy the following condition: 0.964≤|(HF*θ) / (F*θ)|≤1.

5.

28. The optical lens according to any one of claims 1-13, characterized in that, The focal length F1 of the first lens and the focal length F of the optical lens satisfy the following condition: 0.01≤F1 / F≤1.

696.

29. The optical lens according to any one of claims 1-13, characterized in that, The focal length F3 of the third lens and the focal length F of the optical lens satisfy the following condition: 0.01≤F3 / F≤1.

843.

30. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R1 of the first side of the first lens and the focal length F of the optical lens satisfy the following condition: 0.01≤R1 / F≤1.

91.

31. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R2 of the second side of the first lens and the focal length F of the optical lens satisfy the following condition: -2.107≤R2 / F≤-0.

01.

32. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R5 of the second side surface of the second lens and the focal length F of the optical lens satisfy the following condition: 0.02≤R5 / F≤2.

328.

33. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R7 of the second side surface of the third lens and the focal length F of the optical lens satisfy the following condition: -1.72≤R7 / F≤-0.

1.

34. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R8 of the first side of the fourth lens and the focal length F of the optical lens satisfy the following condition: 0.2≤R8 / F≤2.

519.

35. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R9 of the second side surface of the fourth lens and the focal length F of the optical lens satisfy the following condition: -4.369≤R9 / F≤-0.

1.

36. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R10 of the first side of the fifth lens and the focal length F of the optical lens satisfy the following condition: 0.01≤R10 / F≤0.

704.

37. The optical lens according to any one of claims 1-13, characterized in that, The radius of curvature R11 of the second side of the fifth lens and the focal length F of the optical lens satisfy the following condition: 0.01≤R11 / F≤0.

603.

38. The optical lens according to any one of claims 1-13, characterized in that, 0.697≤F / D≤1, 0.05≤BFL / TTL≤0.105, 0.702≤|R1 / R2|≤2, 2.8≤|F23 / F|≤170.31, 2.103≤TTL / F≤2.5, 0.589≤|F2 / F3|≤1.2, 0.3≤R 10 / (R11+d5)≤1.5, 0.4≤F / R1≤0.676, 0.5≤F3 / F4≤1.2, 1.8≤F / H≤2.6; 1.75≤Nd5≤1.804, 0.8≤|F2 / F|≤1.324, 0.1≤|(R2-R4) / (R2 +R4)|≤1.6, 1.125≤|F / F3|+|F / R5|≤3, 0.964≤|(HF*θ) / (F*θ)|≤1, 0.5≤F1 / F≤1.696, 0.5≤F3 / F≤1.843, 0.5≤R1 / F≤1.91, -2.107 ≤R2 / F≤-0.5, 0.1≤R5 / F≤2.328, -1.72≤R7 / F≤-0.8, 1≤R8 / F≤2.519, -4.369≤R9 / F≤-0.8, 0.05≤R10 / F≤0.704, 0.05≤R11 / F≤0.603; Wherein, F is the focal length of the optical lens; D is the entrance pupil diameter of the optical lens; BFL is the air gap from the chip surface of the optical lens to the center of the second side surface of the fifth lens; TTL is the total optical length of the optical lens; R1 is the radius of curvature of the first side surface of the first lens; R2 is the radius of curvature of the second side surface of the first lens; F23 is the combined focal length of the second lens and the third lens; 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; and F5 is the focal length of the fifth lens. R10 is the radius of curvature of the first side surface of the fifth lens; R11 is the radius of curvature of the second side surface of the fifth lens; d5 is the center thickness of the fifth lens; H is the full image height corresponding to the maximum field of view of the optical lens; Nd5 is the refractive index of the fifth lens; R4 is the radius of curvature of the first side surface of the second lens; R5 is the radius of curvature of the second side surface of the second lens; θ is the field of view of the optical lens; R7 is the radius of curvature of the second side surface of the third lens; R8 is the radius of curvature of the first side surface of the fourth lens; R9 is the radius of curvature of the second side surface of the fourth lens.

39. The optical lens according to any one of claims 1-13, characterized in that, 0.697≤F / D≤0.762, 0.079≤BFL / TTL≤0.105, 0.702≤|R1 / R2|≤1.869, 4.62 4≤|F23 / F|≤170.31, 2.103≤TTL / F≤2.151, 0.589≤|F2 / F3|≤0.927, 1.165 ≤|F1 / F2|≤1.298, 0.68≤R10 / (R11+d5)≤0.83, 0.524≤F / R1≤0.676, 0.611 ≤F3 / F4≤1.506, 2.271≤F / H≤2.31, 1.042≤|F2 / F|≤1.324, 0.2≤|(R2-R4) / ( R2+R4)|≤1.515, 1.125≤|F / F3|+|F / R5|≤2.29, 0.964≤|(HF*θ) / (F*θ)|≤ 0.965, 1.276≤F1 / F≤1.696, 1.428≤F3 / F≤1.843, 1.478≤R1 / F≤1.91, -2.10 7≤R2 / F≤-1.022, 0.587≤R5 / F≤2.328, -1.72≤R7 / F≤-1.148, 1.715≤R8 / F≤ 2.519, -4.369≤R9 / F≤-2.066, 0.612≤R10 / F≤0.704, 0.533≤R11 / F≤0.603; Wherein, F is the focal length of the optical lens; D is the entrance pupil diameter of the optical lens; BFL is the air gap from the chip surface of the optical lens to the center of the second side surface of the fifth lens; TTL is the total optical length of the optical lens; R1 is the radius of curvature of the first side surface of the first lens; R2 is the radius of curvature of the second side surface of the first lens; F23 is the combined focal length of the second lens and the third lens; 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; and F5 is the focal length of the fifth lens. R10 is the radius of curvature of the first side surface of the fifth lens; R11 is the radius of curvature of the second side surface of the fifth lens; d5 is the center thickness of the fifth lens; H is the full image height corresponding to the maximum field of view of the optical lens; Nd5 is the refractive index of the fifth lens; R4 is the radius of curvature of the first side surface of the second lens; R5 is the radius of curvature of the second side surface of the second lens; θ is the field of view of the optical lens; R7 is the radius of curvature of the second side surface of the third lens; R8 is the radius of curvature of the first side surface of the fourth lens; R9 is the radius of curvature of the second side surface of the fourth lens.

40. An electronic device, characterized in that, It includes an optical lens as described in any one of claims 1 to 39 and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

Images