Optical lens and electronic device

Abstract

The application discloses an optical lens and an electronic device. The optical lens comprises first to sixth lenses in sequence from a first side to a second side along an optical axis. The first lens has positive optical power, and a first side thereof is a convex surface. The second lens has negative optical power, and a second side thereof is a concave surface. The third lens has positive optical power, and a second side thereof is a convex surface. The fourth lens has positive optical power, and a first side thereof is a convex surface. The fifth lens has negative optical power. The sixth lens has negative optical power, and a first side thereof is a concave surface. The first to sixth lenses are all glass spherical lenses. The number of lenses with optical power in the optical lens is six.

Description

Technical Field

[0001] This application relates to the field of optical components, and more specifically, to an optical lens and electronic device. Background Technology

[0002] With the continuous iteration and upgrading of intelligent driving technology, advanced intelligent driving functions are gradually becoming widespread and being installed on a large scale in mass-produced civilian vehicles. Intelligent driving perception solutions have developed into a relatively mature technology system, with the mainstream approach using a fusion architecture of visual perception and radar perception to complete the detection of the vehicle's surrounding environment and autonomous decision-making and control. Among these, the vehicle-mounted forward-looking camera is the core category of automotive cameras for Advanced Driver-Assistance Systems (ADAS). It is mainly used in the field of high-pixel autonomous driving vehicle imaging, relying on long-distance detection and high-performance visual imaging capabilities to complete ADAS functions such as high-speed forward vehicle distance judgment and warning, automatic lane changing, and collision avoidance warning. However, existing conventional automotive cameras are difficult to adapt to the multiple hard conditions of low-cost mass production, deployment in confined installation spaces, and stable operation under harsh conditions. They struggle to maintain stable and efficient imaging output under these constraints, resulting in significant limitations in practical use.

[0003] Currently, high-pixel autonomous driving vehicle lenses face multiple objective technical bottlenecks in actual design and mass production. Existing conventional lens solutions cannot simultaneously meet multiple constraints, specifically the following prominent technical challenges: First, there is an inherent conflict between high-performance imaging indicators and low-cost mass production goals. Pursuing long-distance high-definition imaging and high resolution inevitably leads to increased costs for lens materials, precision machining, and assembly processes, making it difficult to effectively balance the two. Second, the limited installation space in vehicles and the rigid constraint of structural miniaturization directly restrict the design space for large aperture and high light transmission optical structures, limiting light transmission capacity and thus affecting imaging sensitivity in low-light environments. Third, harsh driving environments such as rain, snow, high and low temperatures, sandstorms, and strong backlighting place higher demands on the selection of lens optical materials and mechanical sealing structures. Objective limitations such as material stress deformation and decreased structural environmental reliability further exacerbate problems such as lens resolution attenuation and photosensitivity degradation, making it impossible to guarantee stable long-distance detection imaging of ADAS systems in all weather conditions, thus hindering the reliable implementation of advanced autonomous driving functions. Summary of the Invention

[0004] The first aspect of this application provides an optical lens and electronic device comprising, sequentially from a first side to a sixth lens along the optical axis from a first side to a second side. The first lens has positive optical power and its first side is convex; the second lens has negative optical power and its second side is concave; the third lens has positive optical power and its second side is convex; the fourth lens has positive optical power and its first side is convex; the fifth lens has negative optical power; and the sixth lens has negative optical power and its first side is concave. The first, second, third, fourth, fifth, and sixth lenses are all glass spherical lenses. The optical lens contains six lenses with optical power.

[0005] The optical lens satisfies the following conditions: 1.5≤TTL / F≤2.7, 1.35≤F / ENPD≤1.75, 0.75≤F1 / F≤2.4, -0.35≤F / F5<0; where TTL is the total optical length of the optical lens, F is the total effective focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, F1 is the effective focal length of the first lens, and F5 is the effective focal length of the fifth lens.

[0006] According to an exemplary embodiment of this application, the second side surface of the first lens is concave; or, the second side surface of the first lens is planar; or, the second side surface of the first lens is convex; the first side surface of the second lens is concave; or, the first side surface of the second lens is planar; or, the first side surface of the second lens is convex; the first side surface of the third lens is convex; or, the first side surface of the third lens is planar; or, the first side surface of the third lens is concave; the second side surface of the fourth lens is convex; or, the second side surface of the fourth lens is planar; or, the second side surface of the fourth lens is concave; the first side surface of the fifth lens is concave and the second side surface is convex; or, the first side surface of the fifth lens is convex and the second side surface is concave; or, the first side surface of the fifth lens is planar and the second side surface is concave; or, the first side surface of the fifth lens is concave and the second side surface is planar; the second side surface of the sixth lens is convex; or, the second side surface of the sixth lens is planar; or, the second side surface of the sixth lens is concave.

[0007] The letters in this application have the following meanings: DFOV is the maximum field of view of the optical lens; H is the image height corresponding to the maximum field of view of the optical lens; θ is the radian value corresponding to the maximum field of view of the optical lens; DMAX is the maximum effective aperture among all lenses in the optical lens; D11 is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens; BFL is the back focal length of the optical lens; DST is the effective aperture of the optical lens; F3 is the effective focal length of the third lens; F2 is the effective focal length of the second lens; F4 is the effective focal length of the fourth lens; F6 is the effective focal length of the sixth lens; and R11 is the center of the first side of the first lens. The radius of curvature, FR32 is the image-side focal length of the second side of the third lens, FR41 is the image-side focal length of the first side of the fourth lens, CT2 is the center thickness of the second lens, T12 is the air gap between the first and second lenses, T23 is the air gap between the second and third lenses, FR61 is the image-side focal length of the first side of the sixth lens, CT6 is the center thickness of the sixth lens, SAG32 is the sag of the second side of the third lens corresponding to the maximum field of view of the optical lens, SAG41 is the sag of the first side of the fourth lens corresponding to the maximum field of view of the optical lens, and R22 is the center radius of curvature of the second side of the second lens.

[0008] According to an exemplary embodiment of this application, the maximum field of view (DFOV) of the optical lens, the total effective focal length (F) of the optical lens, and the image height (H) corresponding to the maximum field of view of the optical lens satisfy: 50°≤(DFOV×F) / H≤65°.

[0009] According to an exemplary embodiment of this application, the total optical length (TTL) of the optical lens satisfies: 25mm ≤ TTL ≤ 38mm.

[0010] According to an exemplary embodiment of this application, the effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy: 0.8≤F3 / F≤1.25.

[0011] According to an exemplary embodiment of this application, the effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy: -0.85≤F2 / F≤-0.3.

[0012] According to an exemplary embodiment of this application, the effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens satisfy: 0.6≤F4 / F≤1.35.

[0013] According to an exemplary embodiment of this application, the effective focal length F6 of the sixth lens and the total effective focal length F of the optical lens satisfy: -1.65≤F6 / F≤-0.75.

[0014] According to an exemplary embodiment of this application, the image-side focal length FR32 of the second side of the third lens and the image-side focal length FR41 of the first side of the fourth lens satisfy: 0.5≤FR32 / FR41≤2.

[0015] According to an exemplary embodiment of this application, the center thickness CT2 of the second lens, the air gap T12 between the first lens and the second lens, and the air gap T23 between the second lens and the third lens satisfy: 0.08≤CT2 / (T12+T23)≤0.65.

[0016] According to an exemplary embodiment of this application, the total effective focal length F of the optical lens, the effective focal length F5 of the fifth lens, and the image-side focal length FR61 of the first side of the sixth lens satisfy: -0.3≤F / (F5+FR61)<0.

[0017] According to an exemplary embodiment of this application, the center thickness CT6 of the sixth lens and the total effective focal length F of the optical lens satisfy: 0.025≤CT6 / F≤0.135.

[0018] According to an exemplary embodiment of this application, the sagitta SAG32 of the second side of the third lens corresponding to the maximum field of view of the optical lens and the sagitta SAG41 of the first side of the fourth lens corresponding to the maximum field of view of the optical lens satisfy: -0.8≤SAG32 / SAG41≤-0.2.

[0019] According to an exemplary embodiment of this application, the maximum field of view (DFOV) of the optical lens satisfies: 25° ≤ DFOV ≤ 45°.

[0020] According to an exemplary embodiment of this application, the effective focal length F3 of the third lens and the effective focal length F4 of the fourth lens satisfy: 1≤F3 / F4≤1.6.

[0021] According to an exemplary embodiment of this application, the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy: 0.5≤CT3 / CT4≤1.45.

[0022] According to an exemplary embodiment of this application, the center thickness CT5 of the fifth lens and the edge thickness ET5 of the fifth lens satisfy: 0.8≤CT5 / ET5≤1.3.

[0023] According to an exemplary embodiment of this application, the optical lens satisfies at least one of the following relationships: 4 / 1°≤TTL / H / θ≤7 / 1°, 1≤TTL / DMAX≤5, 0.6°≤(F×θ) / D11≤1.2°, 1.2 / 1°≤D11 / H / θ≤2.6 / 1° , 0.03 / 1mm≤D11 / H / F≤0.12 / 1mm, 0≤|(HF×θ) / (F×θ)|≤0.065, 0.06≤BFL / TTL≤0.185, 1.2≤ F / H≤2, 0.1 / 1mm≤F / ENPD / D11≤0.18 / 1mm, 0.4≤DST / F≤0.7, 0.85≤(H / 2) / (F×tan(θ / 2))≤1 .1, 0.85≤F1 / F≤1.95, 0.35≤R11 / F≤1.65, 0.8≤R11 / R22≤1.85, 28.003mm≤TTL≤34.003mm.

[0024] According to an exemplary embodiment of this application, the optical lens satisfies at least one of the following relationships: 55.876°≤(DFOV×F) / H≤60.074°, 1.821≤TTL / F≤2.414, 4.986 / 1°≤TTL / H / θ≤6.278 / 1°, 2.689≤TTL / DM AX≤3.145, 0.781°≤(F×θ) / D11≤0.925°, 1.603 / 1°≤D11 / H / θ≤2.118 / 1°, 0.070 / 1mm≤D11 / H / F≤0.084 / 1 mm, 0<|(HF×θ) / (F×θ)|≤0.047, 0.076≤BFL / TTL≤0.154, 1.462≤F / H≤1.779, 1.45≤F / ENPD≤1.75, 0.12 7 / 1mm≤F / ENPD / D11≤0.169 / 1mm, 0.448≤DST / F≤0.600, 0.923≤(H / 2) / (F×tan(θ / 2))≤0.995, 0.914≤F3 / F≤1.25, 1.035≤F1 / F≤1.718, -0.726≤F2 / F≤-0.499, 0.779≤F4 / F≤1.042, -0.328≤F / F5≤-0.030, -1.373≤F6 / F≤-0.885, 0.614≤R11 / F≤1.173, 0.699≤FR32 / FR41≤1.782, 0.105≤CT2 / (T12+T23)≤0.490, -0 .252≤F / (F5+FR61)≤-0.029, 0.044≤CT6 / F≤0.113, -0.626≤SAG32 / SAG41≤-0.245, 1.017≤R11 / R22≤1 .580, 32.211°≤DFOV≤40.480°, 1.064≤F3 / F4≤1.580, 0.528≤CT3 / CT4≤1.418, 0.870≤CT5 / ET5≤1.216.

[0025] The second aspect of this application provides an electronic device comprising an optical lens as described in the exemplary embodiments above, and at least one of an imaging element and a light source, wherein the imaging element is used to convert an optical image or optical information formed by the optical lens into an electrical signal, the light source is located on a second side of the optical lens, and the light emitted by the light source is projected onto a first side of the optical lens after passing through the optical lens, forming an image or an illuminated area on the first side of the optical lens.

[0026] The optical lens according to the embodiments of this application employs six glass spherical lenses with optical power. The first lens has positive optical power and its first side surface is convex; the second lens has negative optical power and its second side surface is concave; the third lens has positive optical power and its second side surface is convex; the fourth lens has positive optical power and its first side surface is convex; the fifth lens has negative optical power; and the sixth lens has negative optical power and its first side surface is concave. By rationally allocating the optical power ratio of the six lenses, the lens surface structure, and the center thickness and curvature parameters of each lens on the optical axis, while simultaneously controlling the overall size and optical ratio of the optical lens, the optical lens satisfies the following conditions: 1.5≤TTL / F≤2.7, 1.35≤F / ENPD≤1.75, 0.75≤F1 / F≤2.4, -0.35≤F / F5<0. By controlling the optical lens to meet these conditions, a low-cost vehicle-mounted telephoto lens can be achieved, while also considering a large aperture and low system sensitivity.

[0027] By controlling 1.5≤TTL / F≤2.7, and balancing the ratio between the total length of the optical lens and the focal length of the system, a synergistic design of the lens's telephoto performance and miniaturized structure is achieved.

[0028] By controlling the ratio of the focal length of the entire optical lens group to the entrance pupil diameter, the lens can have excellent large aperture characteristics, greatly improve the light transmission of the optical system, effectively adapt to complex imaging environments such as low light and dim light, significantly improve the imaging clarity and imaging stability of the lens in low light scenes, and achieve high resolution imaging effect.

[0029] By controlling the focal length to 0.2≤F1 / F≤2.65, the first lens, as the first element of the optical lens, plays a crucial role in regulating spherical aberration, field curvature, and in-plane illuminance within a reasonable range. Simultaneously, the power ratio of the first lens directly affects the overall arrangement and power distribution of the subsequent lens elements, effectively optimizing the overall lens structure. This achieves a miniaturized and compact lens design while reducing the overall sensitivity of the optical system and improving image stability and assembly tolerance.

[0030] By controlling -0.35≤F / F5<0, the fifth lens is a negative optical power lens. This parameter range limits the fifth lens to have a reasonable single-plane optical power value, effectively buffering the abrupt optical path reversal caused by the convergence of light from two consecutive positive lenses, avoiding the introduction of a large number of high-order aberrations due to sudden changes in the optical path, and significantly reducing the optical sensitivity of the system. At the same time, it can moderately share the aberration correction pressure of the sixth lens, balancing the aberration correction load of the entire system, and effectively improving the overall imaging quality and image purity of the lens. Attached Figure Description

[0031] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Figures 1-23 Schematic diagrams of the optical lenses according to Embodiments 1-23 of this application are shown respectively; Figure 24 The modulation transfer function (MTF) curve of the optical lens according to Embodiment 1 of this application is shown. Figure 25 The defocus modulation transfer function curve of the optical lens according to Embodiment 1 of this application is shown; Figure 26 A schematic diagram of the distortion of an optical lens according to Embodiment 1 of this application is shown; Figure 27 A schematic diagram of the relative illumination of an optical lens according to Embodiment 1 of this application is shown; Figure 28 A schematic diagram of the lens height of the optical lens of this application is shown.

[0032] Explanation of reference numerals in the attached figures: First lens L1; Second lens L2; ​​Third lens L3; Fourth lens L4; Fifth lens L5; Sixth lens L6; Aperture stop STO; Protective glass L7; Color filter L8; Image plane IMA; The first side surface S1 of the first lens L1, and the second side surface S2 of the first lens L1; The first side surface S3 of the second lens L2, the second side surface S4 of the second lens L2; The first side surface S5 of the third lens L3, the second side surface S6 of the third lens L3; The first side surface S7 of the fourth lens L4, and the second side surface S8 of the fourth lens L4; The first side surface S9 of the fifth lens L5, and the second side surface S10 of the fifth lens L5; The first side surface S11 of the sixth lens L6, and the second side surface S12 of the sixth lens L6; The first side of the protective glass L7 is S13, and the second side of the protective glass L7 is S14. The first side surface S15 of the color filter L8, and the second side surface S16 of the color filter L8. Detailed Implementation

[0033] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements. It should be noted that in this specification, the terms first, second, third, etc., are used only to distinguish one feature from another and do not indicate any limitation on the features. Therefore, the first lens discussed below may also be referred to as the second lens or the third lens without departing from the teachings of this application. In the drawings, for ease of illustration, the thickness, size, and shape of the lenses have been slightly exaggerated. Specifically, the shapes of spherical or aspherical surfaces shown in the drawings are illustrated by way of example. That is, the shapes of spherical or aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustrative purposes only and are not strictly drawn to scale.

[0034] In this document, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the location of the convexity is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the location of the concaveness is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the first side is called the first side surface of the lens, and the surface of each lens closest to the second side is called the second side surface of the lens. It should also be understood that the terms "comprising," "including," and / or "having," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. Furthermore, when describing embodiments of this application, the term "may" is used to mean "one or more embodiments of this application." And the term "exemplary" is intended to refer to an example or illustration. Unless otherwise specified, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms (e.g., terms defined in common dictionaries) should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense, unless expressly so defined herein. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] The features, principles and other aspects of this application are described in detail below.

[0036] An optical lens according to an exemplary embodiment of this application may include, for example, six lenses with optical power, namely a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, which are arranged sequentially from the first side to the second side along the optical axis.

[0037] In an example embodiment, the optical lens can be used as, for example, an imaging optical lens. In this case, the first side of the optical lens can be the object side, and the second side can be the image side. Light from the object side can be imaged on the image side. The second side of the optical lens is provided with an imaging surface. The imaging optical lens can be a vehicle-mounted optical lens, a security monitoring optical lens, or a radar receiver optical lens. In an example embodiment, the optical lens can be used as, for example, a projection optical lens or a lidar transmitter optical lens. In this case, the second side of the optical lens can be the image source side, and the first side can be the imaging side. Light from the image source side can be imaged on the imaging side. The second side of the optical lens is provided with an image source surface. In an example embodiment, the optical lens provided in this application can be used as a light-receiving optical lens or a light-emitting optical lens. The light-receiving optical lens is typically used to collect light from the object-side space. The collected light is used to form detection information, including but not limited to imaging and laser point clouds. The light-emitting optical lens is typically used to transmit light from a light-emitting unit to the object-side space. According to the function of the light, the light transmitted to the object-side space can be divided into projection light for forming a projected image or detection light for detecting target information, etc. It is understood that when the optical lens provided in this application is used as a light-receiving optical lens such as a camera optical lens, a lidar receiver optical lens, a microscopic optical lens, or a telescope optical lens, the term "first side" as used herein can refer to the object side, and "second side" can refer to the image side (such as the side where a photoelectric sensor or retina is located). That is, light from the object side can, for example, form an image on the image side. A camera optical lens can be, for example, a vehicle-mounted camera, an infrared camera, a drone camera, a night vision camera, or a security monitoring camera. When the optical lens provided in this application is used as a light-emitting optical lens such as a projection optical lens or a lidar transmitter optical lens, the term "first side" as used herein can refer to the object side, and "second side" can refer to the light source side. In some possible implementations, the optical lens provided in this application can also simultaneously perform light-receiving and light-emitting functions. For example, the optical lens provided in this application is used in a lidar optical lens that shares a light-receiving and light-emitting path, where the optical lens simultaneously performs the functions of emitting laser light and receiving radar echo beams. For example, the optical lens provided in this application is used in an optical communication and radar integration optical lens, which simultaneously performs the functions of transmitting modulated optical signals and receiving radar echo beams.

[0038] In the example implementation, the first lens has positive optical power and converges light rays. As the first lens in the system, the positive optical power first lens effectively corrects fundamental spherical aberration, shares the overall aberrations of the entire lens group, and suppresses off-axis aberrations such as coma and field curvature, ensuring clear imaging at all four corners of the field of view. It also compresses the focal length of incident light, preventing excessive enlargement of subsequent lens apertures caused by incident light. The first side of the first lens is convex. This convex structure can collect more incident light rays and deflect them, suppressing distortion of light rays over a wide field of view and reducing ghosting caused by reflections. It also provides better protection against water and dust accumulation on the lens surface. The second side of the first lens is mainly used to balance the spherical aberration, coma, and field curvature introduced by the first side of the first lens, smoothly guiding light rays to the second lens and preventing resolution attenuation caused by local optical path anomalies.

[0039] In the example implementation, the second lens has a negative optical power, which diverges light. The negative optical power of the second lens, combined with the positive optical power of the first lens in the preceding element, forms a positive-negative optical power matching combination, achieving system achromatic correction. Simultaneously, it performs secondary correction on the significant residual spherical aberration, coma, and field curvature of the first lens, optimizing the overall image quality of the system and reducing the aberration correction burden on the subsequent lens groups. The first side of the second lens receives the light emitted from the first lens, achieving a smooth optical path transition and specifically correcting the spherical aberration and field curvature remaining on the second side of the first lens. The second side of the second lens is concave, used to correct the remaining higher-order spherical aberration and chromatic aberration on the first side of the second lens, further improving the aberration correction effect.

[0040] In the example embodiment, the third lens has positive optical power and converges light. As a positive optical power lens, the third lens can converge the light path, reduce the aperture of the rear light group, reduce spherical aberration, and simultaneously reduce system size and control production costs. Combined with the positive and negative optical power lenses of the first and second lenses in the front group, it enhances the overall achromatic aberration capability and also improves the residual field curvature and astigmatism problems of the second lens. Furthermore, its smaller curvature and lower focal length variation effectively improve lens temperature drift stability. The first side of the third lens smoothly receives the light emitted from the second lens, preventing large-angle bending of the light and resulting in decreased sensitivity. Its surface shape counteracts the negative field curvature and positive spherical aberration generated by the second lens, improving image quality. The second side of the third lens is convex, used to constrain light height and assist in correcting chromatic aberration and field curvature.

[0041] In the example implementation, the fourth lens has positive optical power and converges light rays. The fourth lens and the preceding third lens form a continuous double positive optical power arrangement, maximizing the compression of the aperture of the subsequent lens elements to meet the requirements of lens miniaturization and small overall size design. The continuous converging optical path improves the system's light transmission capability, adapts to large aperture designs, optimizes aberrations of stray light at the edges of large apertures, and ensures image quality at the edge field of view. The first side of the fourth lens is convex, conforming to the trajectory of the incident light rays, reducing the angle of incidence, suppressing stray light and ghosting, and correcting transverse chromatic aberration and coma. The second side of the fourth lens is also convex, compensating for higher-order spherical aberrations and astigmatism introduced by the first side of the fourth lens, constraining the incident height and optical power of the outgoing light rays, and preventing reflectivity shift caused by large-angle incident light on the color filter.

[0042] In the example implementation, the fifth lens has a negative optical power, which diverges light. The fifth lens supplements and balances the overall optical power of the system through its negative optical power, while simultaneously correcting residual chromatic aberration and distortion. Since the two consecutive positive lenses in the front group (third and fourth lenses) are prone to pincushion distortion, the negative optical power of the fifth lens can neutralize and cancel out this pincushion distortion, thus improving the distortion control effect across the entire field of view. The fifth lens can complete pincushion distortion correction and simultaneously compensate for higher-order spherical aberration and chromatic aberration, achieving a smooth transition in the optical path.

[0043] In the example implementation, the sixth lens has negative optical power and diverges light. As the last negative optical power lens, the sixth lens introduces negative field curvature to correct the positive field curvature and negative spherical aberration accumulated by the third and fourth positive lenses, providing final and refined compensation for various aberrations in the entire system and improving the overall image resolution consistency. The first side of the sixth lens is concave, receiving the highly converged light beam from the previous group of multiple positive lenses. The concave surface shape corrects and balances the large number of aberrations accumulated in the previous group. The second side of the sixth lens is also concave, which can precisely control the angle of light incident on the image plane, ensuring perpendicular light incidence and avoiding color cast and vignetting problems.

[0044] In an example embodiment, the optical lens may further include an aperture stop disposed between the second lens and the third lens. The aperture stop, located between the second and third lenses, facilitates effective light convergence entering the optical lens, reduces the lens aperture at the rear end of the optical lens, and lowers the assembly sensitivity of the optical lens.

[0045] In an example embodiment, the optical lens may further include an infrared cut-off filter (IR) located between the sixth lens and the image plane to filter light of different wavelengths. The optical lens may also, as needed, have a cover glass (CG) between the IR filter and the image plane to prevent damage to internal components (e.g., chips) of the optical lens.

[0046] In an example embodiment, the optical lens may further include a photosensitive element disposed on the second side. Optionally, the photosensitive element disposed on the second side may be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS).

[0047] In the example implementation, the total optical length (TTL) of the optical lens satisfies: 25mm ≤ TTL ≤ 38mm. Preferably, 28.003mm ≤ TTL ≤ 34.003mm. Controlling the range of this relationship ensures sufficient space for the optical lens to arrange six global surface glass lenses, enabling precise correction of field curvature, chromatic aberration, and distortion, achieving high MTF at long distances. When the total optical length of the optical lens is excessively compressed, it leads to crowded lens arrangement, difficulty in allocating positive and negative optical power, poor far-field edge resolution, and large errors in the telephoto distance calculation.

[0048] In the example implementation, the maximum field of view (DFOV) of the optical lens, the total effective focal length (F) of the optical lens, and the image height (H) corresponding to the maximum field of view of the optical lens satisfy the following condition: 50° ≤ (DFOV × F) / H ≤ 65°. Preferably, 55.876° ≤ (DFOV × F) / H ≤ 60.074°. By controlling the range of values ​​in this relationship, and by controlling the entire set of focal length values ​​of the optical lens and the image height corresponding to the maximum field of view, the lens can possess telephoto and large target surface characteristics, realizing the telephoto function of the lens and imaging with eight million or even ten million pixels.

[0049] In the example implementation, the total optical length (TTL) of the optical lens and the total effective focal length (F) of the optical lens satisfy the following condition: 1.5 ≤ TTL / F ≤ 2.7. Preferably, 1.821 ≤ TTL / F ≤ 2.414. By controlling the range of values ​​for this relationship, the ratio between the total length of the optical lens and the system focal length is balanced, achieving a synergistic design between the lens's telephoto performance and its miniaturized structure.

[0050] In the example implementation, the total optical length (TTL) of the optical lens, the image height (H) corresponding to the maximum field of view of the optical lens, and the radian value (θ) corresponding to the maximum field of view of the optical lens satisfy: 4 / 1° ≤ TTL / H / θ ≤ 7 / 1°. Preferably, 4.986 / 1° ≤ TTL / H / θ ≤ 6.278 / 1°. By controlling the range of values ​​for this relationship, the ratio of the total optical length, maximum field of view, and image height corresponding to the maximum field of view of the optical lens is controlled, enabling the lens to balance miniaturized structure and large-area imaging effect, meeting the application scenarios of eight million or even ten million pixels.

[0051] In the example implementation, the total optical length (TTL) of the optical lens and the maximum effective aperture (DMAX) of all lenses in the optical lens satisfy the following condition: 1 ≤ TTL / DMAX ≤ 5. Preferably, 2.689 ≤ TTL / DMAX ≤ 3.145. By controlling the range of values ​​for this relationship, the ratio of the total optical length to the maximum lens aperture is controlled, making the overall optical system structure more compact and further promoting lens miniaturization design.

[0052] In the example embodiment, the total effective focal length F of the optical lens, the radian value θ corresponding to the maximum field of view of the optical lens, and the maximum aperture D11 of the first side of the first lens corresponding to the maximum field of view of the optical lens satisfy the following condition: 0.6° ≤ (F×θ) / D11 ≤ 1.2°. Preferably, 0.781° ≤ (F×θ) / D11 ≤ 0.925°. By controlling the range of values ​​of this relationship, under the premise of a fixed field of view, the maximum aperture of the optical lens can be reduced, the front aperture size of the lens can be reduced, and the overall volume of the imaging system can be effectively reduced.

[0053] In the example implementation, the maximum aperture D11 of the first side of the first lens corresponding to the maximum field of view of the optical lens, the image height H corresponding to the maximum field of view of the optical lens, and the radian value θ corresponding to the maximum field of view of the optical lens satisfy: 1.2 / 1° ≤ D11 / H / θ ≤ 2.6 / 1°. Preferably, 1.603 / 1° ≤ D11 / H / θ ≤ 2.118 / 1°. By controlling the range of values ​​of this relationship, and controlling the ratio of the maximum aperture of the first side of the first lens to the maximum field of view and the corresponding image height, the lens can achieve both a miniaturized structure and a large target surface imaging characteristic, realizing telescopic imaging function and high-definition pixels of eight million or even ten million.

[0054] In the example embodiment, the maximum aperture D11 of the first side of the first lens corresponding to the maximum field of view of the optical lens, the image height H corresponding to the maximum field of view of the optical lens, and the total effective focal length F of the optical lens satisfy: 0.03 / 1mm ≤ D11 / H / F ≤ 0.12 / 1mm. Preferably, 0.070 / 1mm ≤ D11 / H / F ≤ 0.084 / 1mm. By controlling the range of values ​​of this relationship, and by controlling the ratio between the aperture of the first lens front end, the image height, and the system focal length, the lens can have both a miniaturized structure and large target surface imaging characteristics, taking into account both telephoto imaging function and high-pixel imaging requirements.

[0055] In the example implementation, the image height H corresponding to the maximum field of view of the optical lens, the total effective focal length F of the optical lens, and the radian value θ corresponding to the maximum field of view of the optical lens satisfy the following parametric relationship: 0 ≤ |(HF×θ) / (F×θ)| ≤ 0.065. Preferably, 0 < |(HF×θ) / (F×θ)| ≤ 0.047. By controlling the range of values ​​of this relationship, and by controlling the ratio of the entire set of focal lengths, the maximum field of view radian value, and the corresponding image height, the angular resolution of the central region of the lens is improved, the image quality of the center is optimized, and the image distortion is reduced.

[0056] In the example implementation, the back focal length (BFL) of the optical lens and the total optical length (TTL) of the optical lens satisfy the following condition: 0.06 ≤ BFL / TTL ≤ 0.185. Preferably, 0.076 ≤ BFL / TTL ≤ 0.154. By controlling the range of values ​​for this relationship, the back focal length of the lens and the total optical system length are balanced. This ensures lens miniaturization while reserving sufficient assembly space for the rear imaging structure, effectively reducing the optical sensitivity of the system.

[0057] In the example implementation, the total effective focal length F of the optical lens and the image height H corresponding to the maximum field of view of the optical lens satisfy the following condition: 1.2 ≤ F / H ≤ 2. Preferably, 1.462 ≤ F / H ≤ 1.779. By controlling the range of values ​​for this relationship, and by controlling the ratio of the entire set of focal length and image height parameters, the lens can possess both telephoto performance and large-area imaging characteristics, enabling it to achieve telephoto imaging functions while also meeting the imaging requirements of eight million or even ten million high-definition pixels.

[0058] In the example implementation, the total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy the following condition: 1.35 ≤ F / ENPD ≤ 1.75. Preferably, 1.45 ≤ F / ENPD ≤ 1.75. By controlling the range of values ​​for this relationship and the numerical ratio of the entire set of focal lengths to the entrance pupil diameter, the lens can possess large aperture characteristics, significantly increasing the amount of light entering the lens and enabling it to adapt to high-definition imaging scenarios in low-light environments.

[0059] In the example embodiment, the total effective focal length F of the optical lens, the entrance pupil diameter ENPD of the optical lens, and the maximum light-transmitting aperture D11 of the first side surface of the first lens corresponding to the maximum field of view of the optical lens satisfy the following: 0.1 / 1mm ≤ F / ENPD / D11 ≤ 0.18 / 1mm. Preferably, 0.127 / 1mm ≤ F / ENPD / D11 ≤ 0.169 / 1mm. By controlling the range of values ​​of this relationship, and by controlling the ratio of the focal length, entrance pupil diameter, and maximum light-transmitting aperture of the first lens, a larger aperture specification can be obtained while ensuring a smaller front aperture, thus balancing small aperture and high light-transmitting performance.

[0060] In the example implementation, the effective aperture diameter (DST) of the optical lens and the total effective focal length (F) of the optical lens satisfy the following condition: 0.4 ≤ DST / F ≤ 0.7. Preferably, 0.448 ≤ DST / F ≤ 0.600. By controlling the range of values ​​for this relationship, the larger the ratio of the aperture diameter to the effective focal length of the optical lens, the larger the lens aperture specification, which can ensure that the lens has excellent high light transmission performance while also taking into account the small-diameter structural design.

[0061] In the example implementation, the image height H corresponding to the maximum field of view of the optical lens, the total effective focal length F of the optical lens, and the radian value θ corresponding to the maximum field of view of the optical lens satisfy the following parametric relationship: 0.85≤(H / 2) / (F×tan(θ / 2))≤1.1. Preferably, 0.923≤(H / 2) / (F×tan(θ / 2))≤0.995. By controlling the range of values ​​of this relationship, and by controlling the entire set of focal length values, the maximum field of view (radian value), and the image height corresponding to the maximum field of view of the optical lens, the lens can have excellent angular resolution in each field of view, small edge distortion, balanced resolution performance in each field of view, and comprehensively improve the overall imaging clarity.

[0062] In the example implementation, the effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy: 0.8 ≤ F3 / F ≤ 1.25. Preferably, 0.914 ≤ F3 / F ≤ 1.25. By controlling the range of values ​​for this relationship, the third lens has a smaller positive focal length, which can reasonably distribute the optical power of the other lenses in the entire lens, achieve aberration correction balance in the system, and effectively improve the overall imaging quality and resolution performance.

[0063] In the example implementation, the effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy: 0.75 ≤ F1 / F ≤ 2.4. Further, 0.85 ≤ F1 / F ≤ 1.95. Preferably, 1.035 ≤ F1 / F ≤ 1.718. By controlling the range of values ​​for this relationship, the first lens, as the first element of the optical lens, plays a crucial role in regulating the spherical aberration, field curvature, and in-plane illuminance of the system by keeping its focal length within a reasonable range. At the same time, the optical power of the first lens directly affects the overall distribution of the subsequent lens elements, significantly contributing to the miniaturization design and low-sensitivity optimization of the lens.

[0064] In the example implementation, the effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy: -0.85 ≤ F2 / F ≤ -0.3. Preferably, -0.726 ≤ F2 / F ≤ -0.499. By controlling the range of values ​​for this relationship, and by controlling the ratio of the focal length of the second lens to the focal length of the entire system, various aberrations generated by light passing through the first lens can be effectively corrected, reducing the overall sensitivity of the optical system and improving the lens resolving performance.

[0065] In the example implementation, the effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens satisfy: 0.6 ≤ F4 / F ≤ 1.35. Preferably, 0.779 ≤ F4 / F ≤ 1.042. By controlling the range of values ​​for this relationship, the fourth lens following the third lens also has a relatively small positive focal length, which is beneficial for gradually converging the transmitted beam, compressing the total optical length (TTL), and helping to achieve a miniaturized structure design for the lens.

[0066] In the example implementation, the total effective focal length F of the optical lens and the effective focal length F5 of the fifth lens satisfy the parameter relationship: -0.35≤F / F5<0. Preferably, -0.328≤F / F5≤-0.030. By controlling the range of values ​​of this relationship, the fifth lens with negative optical power has a large negative focal length, which can prevent the light rays converged by the two consecutive positive lenses in front from undergoing abrupt reversals, avoiding the introduction of a large number of aberrations and reducing the sensitivity of the system; at the same time, it appropriately shares the aberration correction pressure of the sixth lens, improving the overall imaging quality of the lens.

[0067] In the example implementation, the effective focal length F6 of the sixth lens and the total effective focal length F of the optical lens satisfy: -1.65 ≤ F6 / F ≤ -0.75. Preferably, -1.373 ≤ F6 / F ≤ -0.885. By controlling the range of values ​​for this relationship, and by controlling the focal length ratio of the sixth lens to the entire lens, the positive field curvature introduced by the multiple positive lenses in front can be offset, making the focal point of the entire field of view tend to be flat; at the same time, the incident angle of the off-axis principal ray can be adjusted to match the CRA requirements of the image sensor, and the residual distortion and chromatic aberration of the system can be corrected to achieve simultaneous clear imaging of the center and edge fields of view.

[0068] In the example implementation, the optical lens is controlled to satisfy the following values: 0.75≤F1 / F≤2.4, -0.85≤F2 / F≤-0.3, 0.8≤F3 / F≤1.25, 0.6≤F4 / F≤1.35, -0.35≤F / F5<0, and -1.65≤F6 / F≤-0.7. By controlling the range of values ​​in the above relationships and the positive / negative pairing of the first and second lenses, the overall length can be shortened and aberrations corrected. The subsequent two consecutive positive third and fourth lenses can accurately withstand aberration correction capabilities. The fifth lens, with a slight negative focal length, serves as a transition, and the sixth negative lens can significantly correct the field curvature. Through the joint constraint of the effective focal length of the optical lens, the requirements of spherical aberration balance, chromatic aberration control, distortion suppression, 8-megapixel high resolution, and miniaturization can be simultaneously met. Furthermore, under the constraint of an all-glass spherical surface, the above-mentioned collaborative architecture achieves joint correction of multiple aberrations solely through the focal length ratio of the glass spherical lenses.

[0069] In the example embodiment, the central radius of curvature R11 of the first side surface of the first lens and the total effective focal length F of the optical lens satisfy the following condition: 0.35 ≤ R11 / F ≤ 1.65. Preferably, 0.614 ≤ R11 / F ≤ 1.173. By controlling the range of values ​​for this relationship, the first side surface of the first lens is convex, and controlling the ratio of curvature to focal length to be small is beneficial to reducing the intensity of ghost reflections; moreover, the convex surface design with a larger curvature can efficiently collect incident light, increasing the overall light transmission of the optical system.

[0070] In the example implementation, the image-side focal length FR32 of the second side of the third lens and the image-side focal length FR41 of the first side of the fourth lens satisfy the following condition: 0.5 ≤ FR32 / FR41 ≤ 2. Preferably, 0.699 ≤ FR32 / FR41 ≤ 1.782. By controlling the range of values ​​for this relationship, the adjacent sides of the second side of the third lens and the first side of the fourth lens have similar positive optical power values. This allows light to converge twice at this point while maintaining similar light refraction angles, effectively reducing the system's optical sensitivity and improving image quality.

[0071] In the example embodiment, the center thickness CT2 of the second lens, the air gap T12 between the first and second lenses, and the air gap T23 between the second and third lenses satisfy the parameter relationship: 0.08≤CT2 / (T12+T23)≤0.65. Preferably, 0.105≤CT2 / (T12+T23)≤0.490. By controlling the range of values ​​of this relationship, the center thickness of the negative optical power second lens is thinner while the air gaps on both sides are larger, which is beneficial for the effective beam expansion of light in front of the lens, realizing the lens's telephoto and large aperture characteristics; at the same time, it can also separate the focusing positions of different fields of view, reducing imaging coupling and the chromatic aberration burden of the subsequent continuous positive lenses.

[0072] In the example implementation, the total effective focal length F of the optical lens, the effective focal length F5 of the fifth lens, and the image-side focal length FR61 of the first side of the sixth lens satisfy the parameter relationship: -0.3 ≤ F / (F5+FR61) < 0. Preferably, -0.252 ≤ F / (F5+FR61) ≤ -0.029. By controlling the range of values ​​for this relationship, the negative focal length jointly provided by the first side of the fifth and sixth lenses helps to compensate for off-axis aberrations generated by light in the forward optical path, improves image quality, and helps achieve high-pixel imaging requirements of eight million or even ten million pixels.

[0073] In the example implementation, the center thickness CT6 of the sixth lens and the total effective focal length F of the optical lens satisfy the following condition: 0.025 ≤ CT6 / F ≤ 0.135. Preferably, 0.044 ≤ CT6 / F ≤ 0.113. By controlling the range of values ​​for this relationship, the sixth lens has a smaller center thickness, and controlling its ratio to the focal length of the optical lens to be within a small range is beneficial for the overall miniaturization of the lens design, while adding almost no aberration burden, thus facilitating the improvement of MTF performance across the entire field of view.

[0074] In the example embodiment, the sagitta SAG32 of the second side of the third lens corresponding to the maximum field of view of the optical lens and the sagitta SAG41 of the first side of the fourth lens satisfy the parameter relationship: -0.8 ≤ SAG32 / SAG41 ≤ -0.2. Preferably, -0.626 ≤ SAG32 / SAG41 ≤ -0.245. The schematic diagrams of SAG32 and SAG41 are shown below. Figure 28 As shown. It should be noted that the sagitta value is positive when moving along the optical axis of the lens from the first side to the second side, and negative when moving in the opposite direction. By controlling the range of values ​​in this relationship, the sagitta values ​​of adjacent sides of the second side of the third lens and the first side of the fourth lens are matched, balancing the refraction of central and peripheral rays, avoiding excessive bending of peripheral rays, and preventing the generation of higher-order spherical aberration and coma. Specifically, the sagitta value is positive when moving along the optical axis from the first side to the second side, and negative when moving in the opposite direction.

[0075] In the example embodiment, the central radius of curvature R11 of the first side surface of the first lens and the central radius of curvature R22 of the second side surface of the second lens satisfy: 0.8 ≤ R11 / R22 ≤ 1.85. Preferably, 1.017 ≤ R11 / R22 ≤ 1.580. By controlling the range of values ​​for this relationship, and by controlling the central curvature ratio of the front surface of the first lens and the rear surface of the second lens, light can be deflected twice within this range with similar deflection angles, effectively reducing the optical sensitivity of the system and improving the overall image quality. On the other hand, in the example embodiment, all lenses of the optical lens are made of glass. Through reasonable selection of glass materials and the matching design of the overall optical architecture, the optical performance deviation caused by temperature changes can be effectively offset, enabling the lens to achieve good pyrolysis function, ensuring that the lens maintains stable imaging performance in different temperature environments, and improving the environmental adaptability and reliability of the lens.

[0076] In the example implementation, the maximum field of view (DFOV) of the optical lens satisfies: 25° ≤ DFOV ≤ 45°. Preferably, 32.211° ≤ DFOV ≤ 40.480°. The maximum field of view (DFOV) is achieved with a chip having a diagonal dimension of 9.25mm. Controlling the range of this relationship ensures that the lens has sufficient lateral field of view to avoid blind spots such as curves, merging points, and road signs; it also avoids problems such as ranging errors, distortion, and edge dimming caused by an excessively large field of view.

[0077] In the example implementation, the effective focal length F3 of the third lens and the effective focal length F4 of the fourth lens satisfy the following condition: 1 ≤ F3 / F4 ≤ 1.6. Preferably, 1.064 ≤ F3 / F4 ≤ 1.580. By controlling the range of values ​​for this relationship, a reasonable distribution of optical power can be achieved between the third and fourth lenses, which are double positive lenses. This allows for smooth beam convergence, effectively suppressing higher-order spherical aberrations and coma. Simultaneously, it makes the change in light height more stable, avoiding the problem of excessively steep curvature of a single lens. This significantly reduces the tolerance sensitivity of lens surface shape, eccentricity, and tilt, improving lens imaging stability and assembly error tolerance.

[0078] In the example implementation, the center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy the following condition: 0.5 ≤ CT3 / CT4 ≤ 1.45. Preferably, 0.528 ≤ CT3 / CT4 ≤ 1.418. By controlling the range of values ​​for this relationship, the center thicknesses of the third and fourth lenses can be kept in a reasonable ratio, accurately matching the optical path requirements, smoothing changes in optical path and light trajectory, and helping to suppress various higher-order aberrations from the optical path structure level, thereby optimizing the overall image quality of the lens.

[0079] In the example implementation, the center thickness CT5 and the edge thickness ET5 of the fifth lens satisfy the condition: 0.8 ≤ CT5 / ET5 ≤ 1.3. Preferably, 0.870 ≤ CT5 / ET5 ≤ 1.216. By controlling the range of values ​​for this relationship, the center thickness and edge thickness of the fifth lens with negative optical power can be made closer together. This can effectively reduce surface distortion during lens assembly and use, reduce the tolerance sensitivity of lens eccentricity and tilt, and also uniformly distribute the optical path of light within the lens, accurately assisting in the correction of spherical aberration and field curvature, and improving the imaging effect at the lens edges.

[0080] The optical lens according to the above embodiments of this application can employ multiple lenses, such as the six lenses mentioned above. By rationally allocating the optical parameters of each lens, the optical lens achieves small aperture, miniaturization, high resolution, low sensitivity, large angular resolution, large field of view, long back focal length, low distortion, small principal angle, high illumination, and good manufacturability. It can also be well-matched to, for example, automotive chips without producing vignetting. This optical lens exhibits excellent temperature performance, with minimal changes in imaging effect at high and low temperatures, and stable image quality. Therefore, the optical lens according to the above embodiments of this application can better meet the requirements of, for example, automotive applications.

[0081] Specific embodiments of the optical lens applicable to the above-described embodiments are further described below with reference to the accompanying drawings.

[0082] Example 1 The following is for reference Figure 1 The optical lens according to Embodiment 1 of this application is described.

[0083] like Figure 1 As shown, the optical lens, along the optical axis from the first side to the second side, includes: a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and a protective glass CG L7. An aperture stop STO can be positioned between the second lens L2 and the third lens L3. The first lens L1, second lens L2, third lens L3, fourth lens L4, fifth lens L5, and sixth lens L6 are all spherical glass lenses.

[0084] The first lens L1 has positive optical power, its first side surface S1 is convex, and its second side surface S2 is concave.

[0085] The second lens L2 has negative optical power, and its first side surface S3 is concave, and its second side surface S4 is concave.

[0086] The third lens L3 has positive optical power, and its first side surface S5 is convex, and its second side surface S6 is convex.

[0087] The fourth lens L4 has positive optical power, and its first side surface S7 is convex, and its second side surface S8 is convex.

[0088] The fifth lens L5 has negative optical power, with its first side surface S9 being concave and its second side surface S10 being convex.

[0089] The sixth lens L6 has negative optical power, with its first side surface S11 being concave and its second side surface S12 being convex.

[0090] An image plane IMA is provided on the second side of the optical lens. A protective glass CGL7 is provided between the sixth lens L6 and the image plane IMA. The protective glass CGL7 has a first side surface S13 and a second side surface S14. When the IMA is the imaging plane, light from the object passes through each surface sequentially and is finally imaged on the IMA. When the IMA is the image source plane, light from the IMA passes through each surface sequentially and is finally projected onto the object.

[0091] Table 1 shows the basic parameters of the optical lens of Example 1.

[0092] Table 1

[0093] like Figure 24 As shown, T represents the meridional direction, and S represents the sagittal direction. When the spatial frequency is 119 lp / mm (line pairs / mm), the peak MTF of the 0° central field of view (corresponding to the normalized 0 field of view) reaches above 0.7, the peak MTF of the 12.03° field of view (corresponding to the normalized 0.7 field of view) reaches above 0.6, and the peak MTF of the 17.23° peripheral field of view (corresponding to the normalized 1 field of view) reaches above 0.3. For example... Figure 25 As shown, the horizontal axis represents the defocus amount in mm; the vertical axis represents the MTF modulation value (unitless); the curves correspond to the meridional and sagittal directions at different field of view angles, respectively, and the origin represents the theoretically optimal imaging plane. The deviation between the optimal imaging focal plane of the center field of view and the 0.7 normalized field of view is small. Under the same field of view, the peak positions of the defocus MTF in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows for tolerance of defocus errors caused by sensor assembly, ensuring full-field imaging quality. The optical lens of Example 1 can achieve high imaging quality at eight million or even ten million pixels. Figure 26 As shown, the optical lens of Example 1 exhibits less distortion at the edges of the field of view, which is beneficial for achieving high angular resolution and high imaging quality in all fields of view. Figure 27 As shown, the optical lens of Example 1 can achieve a relative illumination of over 60% in the edge field of view, and the image brightness of the optical lens is highly consistent, resulting in more uniform and clear imaging in each field of view.

[0094] In summary, the optical lens provided in Embodiment 1 of this invention employs six lenses with optical power. By rationally setting the optical power parameters, shape parameters, and lens material combinations of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. This results in an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving, capable of effectively capturing the most realistic photos. Here, FNO is the aperture number of the lens, equal to the effective focal length divided by the entrance pupil diameter; a smaller FNO value indicates a greater light transmission capacity.

[0095] Example 2 The following is for reference Figure 2 Describes an optical lens according to Embodiment 2 of this application. For example... Figure 2 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S2 of the first lens L1 is a plane.

[0096] Table 2 shows the basic parameters of the optical lens in Example 2.

[0097] Table 2

[0098] The optical lens of Example 2, at a spatial frequency of 119 lp / mm (line pairs / mm), achieves a normalized MTF peak value of over 0.7 for the 0 field of view, over 0.5 for the 0.7 field of view, and over 0.2 for the 1 field of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view in Example 2 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows for tolerance of defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view. The optical lens of Example 2 can achieve high imaging quality at eight million or even ten million pixels. The optical lens of Example 2 exhibits less distortion in the edge field of view, which is beneficial for having high angular resolution in each field of view and high imaging quality in all fields. The relative illumination of the optical lens in the edge field of view can reach over 60%, resulting in strong image brightness consistency and more uniform and clear imaging across all fields.

[0099] In summary, the optical lens provided in Embodiment 2 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0100] Example 3 The following is for reference Figure 3 Describes an optical lens according to Embodiment 3 of this application. For example... Figure 3 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S2 of the first lens L1 is a convex surface.

[0101] Table 3 shows the basic parameters of the optical lens of Example 3.

[0102] Table 3

[0103] The optical lens of Example 3 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This optical lens can achieve high imaging quality at eight million or even ten million pixels. It exhibits less distortion at the edge fields of view, which is beneficial for high angular resolution and high imaging quality across all fields of view. The relative illumination at the edge fields of view of Example 3 can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 3 is small. The defocus MTF peak positions in the meridional and sagittal directions are close within the same field of view, resulting in a large effective depth of focus range. This allows for tolerance of defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0104] In summary, the optical lens provided in Embodiment 3 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0105] Example 4 The following is for reference Figure 4 Describes an optical lens according to Embodiment 4 of this application. For example... Figure 4 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the first side surface S3 of the second lens L2 is a plane.

[0106] Table 4 shows the basic parameters of the optical lens of Example 4.

[0107] Table 4

[0108] The optical lens of Example 4 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 4 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 4 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 4 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows it to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0109] In summary, the optical lens provided in Embodiment 4 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0110] Example 5 The following is for reference Figure 5 Describes an optical lens according to Embodiment 5 of this application. For example... Figure 5 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the first side surface S3 of the second lens L2 is convex, the first side surface S9 of the fifth lens L5 is convex, and the second side surface S10 is concave.

[0111] Table 5 shows the basic parameters of the optical lens of Example 5.

[0112] Table 5

[0113] The optical lens of Example 5 exhibits a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). The optical lens of Example 5 exhibits minimal distortion at the edge fields of view, which is beneficial for achieving high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 5 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal focal plane deviation between the central field of view and the 0.7 normalized field of view in Example 5 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows for tolerance of defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0114] In summary, the optical lens provided in Embodiment 5 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0115] Example 6 The following is for reference Figure 6 Describes an optical lens according to Embodiment 6 of this application. For example... Figure 6 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S2 of the first lens L1 is convex, while the first side surface S5 of the third lens L3 is flat.

[0116] Table 6 shows the basic parameters of the optical lens of Example 6.

[0117] Table 6

[0118] The optical lens of Example 6 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 6 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 6 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 6 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows for tolerance of defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0119] In summary, the optical lens provided in Embodiment 6 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0120] Example 7 The following is for reference Figure 7 Describes an optical lens according to Embodiment 7 of this application. For example... Figure 7 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S2 of the first lens L1 is convex, while the first side surface S5 of the third lens L3 is concave.

[0121] Table 7 shows the basic parameters of the optical lens of Example 7.

[0122] Table 7

[0123] The optical lens of Example 7 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 7 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 7 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 7 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0124] In summary, the optical lens provided in Embodiment 7 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0125] Example 8 The following is for reference Figure 8 Describes an optical lens according to Embodiment 8 of this application. For example... Figure 8 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S8 of the fourth lens L4 is a plane.

[0126] Table 8 shows the basic parameters of the optical lens of Example 8.

[0127] Table 8

[0128] The optical lens of Example 8 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 8 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 8 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 8 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0129] In summary, the optical lens provided in Embodiment 8 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0130] Example 9 The following is for reference Figure 9 Describes an optical lens according to Embodiment 9 of this application. For example... Figure 9 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S8 of the fourth lens L4 is concave.

[0131] Table 9 shows the basic parameters of the optical lens of Example 9.

[0132] Table 9

[0133] The optical lens of Example 9 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens of Example 9 to achieve high imaging quality at eight million or even ten million pixels. The optical lens of Example 9 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 9 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 9 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows for tolerance of defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0134] In summary, the optical lens provided in Embodiment 9 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0135] Example 10 The following is for reference Figure 10 Describes an optical lens according to Embodiment 10 of this application. For example... Figure 10 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S12 of the sixth lens L6 is a plane.

[0136] Table 10 shows the basic parameters of the optical lens of Embodiment 10.

[0137] Table 10

[0138] The optical lens of Example 10 achieves a peak MTF of 0.7 or higher in the normalized 0 field of view, 0.7 or higher in the normalized 0.7 field of view, and 0.2 or higher in the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens of Example 10 to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 10 exhibits less distortion in the edge field of view, which is beneficial for having a large angular resolution in each field of view and high imaging quality in all fields. The optical lens of Example 10 can achieve a relative illumination of over 60% in the edge field of view, resulting in strong brightness consistency and more uniform and clear imaging in each field of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 10 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows it to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0139] In summary, the optical lens provided in Embodiment 10 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0140] According to some embodiments, the optical lens provided in this application has adhesive properties.

[0141] For example, in this embodiment, the second side surface of the fourth lens and the first side surface of the fifth lens are both spherical with opposite surface shapes. The absolute values ​​of their central radii of curvature are close, and the central air gap between the two sides is small, which has a tendency to bond together. Bonding can be selected.

[0142] Example 11 The following is for reference Figure 11 Describes an optical lens according to Embodiment 11 of this application. For example... Figure 11 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S12 of the sixth lens L6 is concave.

[0143] Table 11 shows the basic parameters of the optical lens of Embodiment 11.

[0144] Table 11

[0145] The optical lens of Example 11 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 11 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 11 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 11 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0146] In summary, the optical lens provided in Embodiment 11 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combinations of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.65. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0147] Example 12 The following is for reference Figure 12 Describes an optical lens according to Embodiment 12 of this application. For example... Figure 12 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0148] Table 12 shows the basic parameters of the optical lens of Example 12.

[0149] Table 12

[0150] The optical lens of Example 12, at a spatial frequency of 119 lp / mm (line pairs / mm), achieves a normalized MTF peak value of over 0.7 for the 0 field of view, over 0.5 for the 0.7 field of view, and over 0.2 for the 1 field of view. This allows the optical lens of Example 12 to achieve high imaging quality at eight million or even ten million pixels. The optical lens of Example 12 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 12 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 12 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows it to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0151] In summary, the optical lens provided in Embodiment 12 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.75. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0152] Example 13 The following is for reference Figure 13 Describes an optical lens according to Embodiment 13 of this application. For example... Figure 13 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0153] Table 13 shows the basic parameters of the optical lens of Example 13.

[0154] Table 13

[0155] The optical lens of Example 13, at a spatial frequency of 119 lp / mm (line pairs / mm), achieves a normalized MTF peak value of over 0.7 for the 0 field of view, over 0.5 for the 0.7 field of view, and over 0.2 for the 1 field of view. This allows the optical lens of Example 13 to achieve high imaging quality at eight million or even ten million pixels. The optical lens of Example 13 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 13 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 13 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows it to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0156] In summary, the optical lens provided in Embodiment 13 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.55. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0157] Example 14 The following is for reference Figure 14 Describes an optical lens according to Embodiment 14 of this application. For example... Figure 14 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0158] Table 14 shows the basic parameters of the optical lens of Example 14.

[0159] Table 14

[0160] The optical lens of Example 14 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 14 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 14 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 14 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0161] In summary, the optical lens provided in Embodiment 14 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.45. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0162] Example 15 The following is for reference Figure 15 Describes an optical lens according to Embodiment 15 of this application. For example... Figure 15 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0163] Table 15 shows the basic parameters of the optical lens of Example 15.

[0164] Table 15

[0165] The optical lens of Example 15, at a spatial frequency of 119 lp / mm (line pairs / mm), achieves a normalized MTF peak value of over 0.7 for the 0 field of view, over 0.5 for the 0.7 field of view, and over 0.2 for the 1 field of view. This allows the optical lens of Example 15 to achieve high imaging quality at eight million or even ten million pixels. The optical lens of Example 15 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The optical lens of Example 15 achieves a relative illumination of over 60% at the edge fields of view, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 15 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows it to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0166] In summary, the optical lens provided in Embodiment 15 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0167] Example 16 The following is for reference Figure 16 Describes an optical lens according to Embodiment 16 of this application. For example... Figure 16 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0168] Table 16 shows the basic parameters of the optical lens of Example 16.

[0169] Table 16

[0170] The optical lens of Example 16 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 16 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 16 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 16 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0171] In summary, the optical lens provided in Embodiment 16 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0172] Example 17 The following is for reference Figure 17 Describes an optical lens according to Embodiment 17 of this application. For example... Figure 17 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0173] Table 17 shows the basic parameters of the optical lens of Example 17.

[0174] Table 17

[0175] The optical lens of Example 17 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 17 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 17 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 17 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0176] In summary, the optical lens provided in Embodiment 17 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0177] Example 18 The following is for reference Figure 18 Describes an optical lens according to Embodiment 18 of this application. For example... Figure 18 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0178] Table 18 shows the basic parameters of the optical lens of Example 18.

[0179] Table 18

[0180] The optical lens of Example 18 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 18 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 18 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 18 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0181] In summary, the optical lens provided in Embodiment 18 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0182] Example 19 The following is for reference Figure 19 Describes an optical lens according to Embodiment 19 of this application. For example... Figure 19 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and it also includes a color filter L8 (IR) disposed between the sixth lens L6 and the protective glass CG L7. The color filter L8 (IR) has a first side surface S15 and a second side surface S16, and the protective glass CG L7 has a first side surface S13 and a second side surface S14.

[0183] Table 19 shows the basic parameters of the optical lens of Embodiment 19.

[0184] Table 19

[0185] The optical lens of Example 19, at a spatial frequency of 119 lp / mm (line pairs / mm), achieves a normalized MTF peak value of over 0.7 for the 0 field of view, over 0.5 for the 0.7 field of view, and over 0.2 for the 1 field of view. This allows the optical lens of Example 19 to achieve high imaging quality at eight million or even ten million pixels. The optical lens of Example 19 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The optical lens of Example 19 achieves a relative illumination of over 60% at the edge fields of view, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 19 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows it to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0186] In summary, the optical lens provided in Embodiment 19 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0187] Example 20 The following is for reference Figure 20 Describes an optical lens according to Embodiment 20 of this application. For example... Figure 20 As shown, the main difference between this embodiment and Embodiment 1 is that the optical parameters such as the radius of curvature and lens thickness of each lens surface are different.

[0188] Table 20 shows the basic parameters of the optical lens of Example 20.

[0189] Table 20

[0190] The optical lens of Example 20 achieves a peak MTF of 0.7 or higher in the normalized 0 field of view, 0.7 field of view, and 0.5 or higher in the normalized 0.7 field of view, and 0.2 or higher in the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens of Example 20 to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 20 exhibits less distortion in the edge field of view, which is beneficial for having a large angular resolution in each field of view and high imaging quality in all fields. The relative illumination of the optical lens of Example 20 in the edge field of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging in each field of view. The optimal imaging focal plane deviation between the center field of view and the 0.7 normalized field of view of Example 20 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows it to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0191] In summary, the optical lens provided in Embodiment 20 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0192] Example 21 The following is for reference Figure 21 Describes an optical lens according to Embodiment 21 of this application. For example... Figure 21 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the first side surface S9 of the fifth lens L5 is convex and the second side surface S10 is concave.

[0193] Table 21 shows the basic parameters of the optical lens of Embodiment 21.

[0194] Table 21

[0195] The optical lens of Example 21 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 21 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 21 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 21 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0196] In summary, the optical lens provided in Embodiment 21 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0197] Example 22 The following is for reference Figure 22 Describes an optical lens according to Embodiment 22 of this application. For example... Figure 22 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the first side surface S9 of the fifth lens L5 is a plane, while the second side surface S10 is a concave surface.

[0198] Table 22 shows the basic parameters of the optical lens of Example 22.

[0199] Table 22

[0200] The optical lens of Example 22 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 22 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 22 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 22 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0201] In summary, the optical lens provided in Embodiment 22 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0202] Example 23 The following is for reference Figure 23 Describes an optical lens according to Embodiment 23 of this application. For example... Figure 23 As shown, the main differences between this embodiment and Embodiment 1 are: the optical parameters such as the radius of curvature and lens thickness of each lens surface are different; and the second side surface S10 of the fifth lens L5 is a plane.

[0203] Table 23 shows the basic parameters of the optical lens of Example 23.

[0204] Table 23

[0205] The optical lens of Example 23 achieves a peak MTF of over 0.7 for the normalized 0 field of view, over 0.5 for the normalized 0.7 field of view, and over 0.2 for the normalized 1 field of view at a spatial frequency of 119 lp / mm (line pairs / mm). This allows the optical lens to achieve high imaging quality at the level of eight million or even ten million pixels. The optical lens of Example 23 exhibits less distortion at the edge fields of view, which is beneficial for having high angular resolution and high imaging quality across all fields of view. The relative illumination of the optical lens of Example 23 at the edge fields of view can reach over 60%, resulting in strong brightness consistency and more uniform and clear imaging across all fields of view. The optimal imaging focal plane deviation between the central field of view and the 0.7 normalized field of view of Example 23 is small. Under the same field of view, the defocus MTF peak positions in the meridional and sagittal directions are close, resulting in a large effective depth of focus range. This allows the lens to tolerate defocus errors caused by sensor assembly, ensuring imaging quality across the entire field of view.

[0206] In summary, the optical lens provided in Embodiment 23 of the present invention employs six lenses with optical power. By reasonably setting the optical power parameters, shape parameters, and lens material combination of the lenses, it achieves the technical effects of high pixel count, miniaturization, high definition, large aperture, weak ghosting, and an FNO of 1.64. It is an 8-megapixel-level forward-looking telephoto narrow-angle lens for autonomous driving that can effectively capture the most realistic photos.

[0207] Tables 24-1, 24-2, and 24-3 provide the basic parameters of the optical lenses in Examples 1-23, such as DFOV, F, H, TTL, θ, DMAX, D11, BFL, ENPD, DST, F1, F2, F3, F4, F5, F6, R11, R22, FR32, FR41, FR61, T12, T23, CT2, CT6, SAG32, and SAG41.

[0208] Table 24-1

[0209] Table 24-2

[0210] Table 24-3

[0211] In summary, the relationships in each embodiment of Examples 1-23 satisfy the relationships shown in Tables 25-1, 25-2 and 25-3.

[0212] Table 25-1

[0213] Table 25-2

[0214] Table 25-3

[0215] This application also provides an electronic device, including a first device and / or a second device. The first device may be, for example, a lidar transmitter, and the second device may be, for example, a lidar receiver. The first device may include the optical lens and light source as described in the exemplary embodiments above. The light source is located on the second side of the optical lens, and the light emitted by the light source is projected onto the first side of the optical lens after passing through the optical lens, forming an image or illuminating an area on the first side. The second device may include the optical lens as described in the exemplary embodiments above and an imaging element for converting the optical image formed by the optical lens into an electrical signal. The imaging element is disposed on the second side of the optical lens (e.g., disposed on the imaging surface), and the imaging element may be, for example, a photocoupled device (CCD) or a complementary metal oxide semiconductor device (CMOS). The light from the first side is imaged on the second side after passing through the optical lens.

[0216] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An optical lens, characterized in that, Along the optical axis, from the first side to the second side, the following are included in sequence: A first lens with positive optical power has a convex first side surface; A second lens with negative optical power has a concave second side surface; The third lens has positive optical power, and its second side surface is convex. The fourth lens with positive optical power has a convex first side surface; A fifth lens with negative optical power; The sixth lens, which has negative optical power, has a concave first side surface; The first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are all glass spherical lenses; The optical lens has six lenses with optical power. The optical lens satisfies the following relationships: 1.5≤TTL / F≤2.7, 1.35≤F / ENPD≤1.75, 0.75≤F1 / F≤2.4, -0.35≤F / F5<0; Wherein, TTL is the total optical length of the optical lens, F is the total effective focal length of the optical lens, ENPD is the entrance pupil diameter of the optical lens, F1 is the effective focal length of the first lens, and F5 is the effective focal length of the fifth lens.

2. The optical lens according to claim 1, characterized in that, The second side surface of the first lens is concave; or, The second side surface of the first lens is a plane; or, The second side surface of the first lens is a convex surface; The first side surface of the second lens is concave; or, The first side surface of the second lens is a plane; or, The first side surface of the second lens is convex. The first side surface of the third lens is convex; or... The first side surface of the third lens is a plane; or... The first side surface of the third lens is concave. The second side surface of the fourth lens is convex; or... The second side surface of the fourth lens is a plane; or, The second side surface of the fourth lens is concave. The first side surface of the fifth lens is concave, and the second side surface is convex; or... The first side surface of the fifth lens is convex, and the second side surface is concave; or... The first side surface of the fifth lens is a plane, and the second side surface is concave; or... The first side of the fifth lens is concave, and the second side is planar; The second side surface of the sixth lens is convex; or... The second side surface of the sixth lens is a plane; or, The second side surface of the sixth lens is concave.

3. The optical lens according to any one of claims 1 to 2, characterized in that, The maximum field of view (DFOV) of the optical lens, the total effective focal length (F) of the optical lens, and the image height (H) corresponding to the maximum field of view of the optical lens satisfy the following condition: 50° ≤ (DFOV × F) / H ≤ 65°.

4. The optical lens according to any one of claims 1 to 2, characterized in that, The total optical length (TTL) of the optical lens satisfies: 25mm ≤ TTL ≤ 38mm.

5. The optical lens according to any one of claims 1 to 2, characterized in that, The effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy the following condition: 0.8 ≤ F3 / F ≤ 1.

25.

6. The optical lens according to any one of claims 1 to 2, characterized in that, The effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy the condition: -0.85≤F2 / F≤-0.

3.

7. The optical lens according to any one of claims 1 to 2, characterized in that, The effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens satisfy the following condition: 0.6≤F4 / F≤1.

35.

8. The optical lens according to any one of claims 1 to 2, characterized in that, The effective focal length F6 of the sixth lens and the total effective focal length F of the optical lens satisfy the following condition: -1.65≤F6 / F≤-0.

75.

9. The optical lens according to any one of claims 1 to 2, characterized in that, The image-side focal length FR32 of the second side of the third lens and the image-side focal length FR41 of the first side of the fourth lens satisfy the following condition: 0.5 ≤ FR32 / FR41 ≤ 2.

10. The optical lens according to any one of claims 1 to 2, characterized in that, The center thickness CT2 of the second lens, the air gap T12 between the first lens and the second lens, and the air gap T23 between the second lens and the third lens satisfy: 0.08≤CT2 / (T12+T23)≤0.

65.

11. The optical lens according to any one of claims 1 to 2, characterized in that, The total effective focal length F of the optical lens, the effective focal length F5 of the fifth lens, and the single-sided focal length FR61 of the first side of the sixth lens satisfy the following condition: -0.3≤F / (F5+FR61)<0.

12. The optical lens according to any one of claims 1 to 2, characterized in that, The center thickness CT6 of the sixth lens and the total effective focal length F of the optical lens satisfy the following condition: 0.025≤CT6 / F≤0.

135.

13. The optical lens according to any one of claims 1 to 2, characterized in that, The sag of the second side of the third lens corresponding to the maximum field of view of the optical lens, SAG32, and the sag of the first side of the fourth lens corresponding to the maximum field of view of the optical lens, SAG41, satisfy the following condition: -0.8≤SAG32 / SAG41≤-0.

2.

14. The optical lens according to any one of claims 1 to 2, characterized in that, The maximum field of view (DFOV) of the optical lens satisfies: 25°≤DFOV≤45°.

15. The optical lens according to any one of claims 1 to 2, characterized in that, The effective focal length F3 of the third lens and the effective focal length F4 of the fourth lens satisfy the following condition: 1≤F3 / F4≤1.

6.

16. The optical lens according to any one of claims 1 to 2, characterized in that, The center thickness CT3 of the third lens and the center thickness CT4 of the fourth lens satisfy the following condition: 0.5≤CT3 / CT4≤1.

45.

17. The optical lens according to any one of claims 1 to 2, characterized in that, The center thickness CT5 and the edge thickness ET5 of the fifth lens satisfy the following condition: 0.8≤CT5 / ET5≤1.

3.

18. The optical lens according to any one of claims 1 to 2, characterized in that, The optical lens satisfies at least one of the following relationships: 4 / 1°≤TTL / H / θ≤7 / 1°, 1≤TTL / DMAX≤5, 0.6°≤(F×θ) / D11≤1.2°, 1.2 / 1°≤D11 / H / θ≤2.6 / 1° , 0.03 / 1mm≤D11 / H / F≤0.12 / 1mm, 0≤|(HF×θ) / (F×θ)|≤0.065, 0.06≤BFL / TTL≤0.185, 1.2≤ F / H≤2, 0.1 / 1mm≤F / ENPD / D11≤0.18 / 1mm, 0.4≤DST / F≤0.7, 0.85≤(H / 2) / (F×tan(θ / 2))≤1 .1, 0.85≤F1 / F≤1.95, 0.35≤R11 / F≤1.65, 0.8≤R11 / R22≤1.85, 28.003mm≤TTL≤34.003mm; Wherein, H is the image height corresponding to the maximum field of view of the optical lens, θ is the radian value corresponding to the maximum field of view of the optical lens, DMAX is the maximum effective aperture among all lenses in the optical lens, D11 is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, BFL is the back focal length of the optical lens, DST is the effective aperture of the optical lens, R11 is the central radius of curvature of the first side of the first lens, and R22 is the central radius of curvature of the second side of the second lens.

19. The optical lens according to any one of claims 1 to 2, characterized in that, The optical lens satisfies at least one of the following relationships: 55.876°≤(DFOV×F) / H≤60.074°, 1.821≤TTL / F≤2.414, 4.986 / 1°≤TTL / H / θ≤6.278 / 1°, 2.689≤TTL / DM AX≤3.145, 0.781°≤(F×θ) / D11≤0.925°, 1.603 / 1°≤D11 / H / θ≤2.118 / 1°, 0.070 / 1mm≤D11 / H / F≤0.084 / 1 mm, 0<|(HF×θ) / (F×θ)|≤0.047, 0.076≤BFL / TTL≤0.154, 1.462≤F / H≤1.779, 1.45≤F / ENPD≤1.75, 0.12 7 / 1mm≤F / ENPD / D11≤0.169 / 1mm, 0.448≤DST / F≤0.600, 0.923≤(H / 2) / (F×tan(θ / 2))≤0.995, 0.914≤F3 / F≤1.25, 1.035≤F1 / F≤1.718, -0.726≤F2 / F≤-0.499, 0.779≤F4 / F≤1.042, -0.328≤F / F5≤-0.030, -1.373≤F6 / F≤-0.885, 0.614≤R11 / F≤1.173, 0.699≤FR32 / FR41≤1.782, 0.105≤CT2 / (T12+T23)≤0.490, -0 .252≤F / (F5+FR61)≤-0.029, 0.044≤CT6 / F≤0.113, -0.626≤SAG32 / SAG41≤-0.245, 1.017≤R11 / R22≤1 .580, 32.211°≤DFOV≤40.480°, 1.064≤F3 / F4≤1.580, 0.528≤CT3 / CT4≤1.418, 0.870≤CT5 / ET5≤1.216; Wherein, DFOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view of the optical lens, θ is the radian value corresponding to the maximum field of view of the optical lens, DMAX is the maximum effective aperture among all lenses in the optical lens, D11 is the maximum aperture of the first side of the first lens corresponding to the maximum field of view of the optical lens, BFL is the back focal length of the optical lens, DST is the effective aperture of the optical lens, F3 is the effective focal length of the third lens, F2 is the effective focal length of the second lens, F4 is the effective focal length of the fourth lens, F6 is the effective focal length of the sixth lens, R11 is the center radius of curvature of the first side of the first lens, FR32 is the image-side focal length of the second side of the third lens, and FR41 is... The image-side focal length of the first side of the fourth lens, CT2 is the center thickness of the second lens, T12 is the air gap between the first and second lenses, T23 is the air gap between the second and third lenses, FR61 is the image-side focal length of the first side of the sixth lens, CT6 is the center thickness of the sixth lens, SAG32 is the sag of the second side of the third lens corresponding to the maximum field of view of the optical lens, SAG41 is the sag of the first side of the fourth lens corresponding to the maximum field of view of the optical lens, R22 is the center radius of curvature of the second side of the second lens, CT3 is the center thickness of the third lens, CT4 is the center thickness of the fourth lens, CT5 is the center thickness of the fifth lens, and ET5 is the edge thickness of the fifth lens.

20. An electronic device, characterized in that, include: Optical lens according to any one of claims 1 to 19; as well as At least one of an imaging element and a light source; The imaging element is used to convert the optical image or optical information formed by the optical lens into an electrical signal; The light source is located on the second side of the optical lens. The light emitted by the light source is projected onto the first side of the optical lens after passing through the optical lens, and forms an image or illuminated area on the first side of the optical lens.

Images