Optical lenses and electronic equipment

Abstract

The present application discloses an optical lens and an electronic device including the optical lens. The optical lens includes, in order from the first side to the second side along the optical axis: a first lens with negative optical power, whose first side surface is convex and whose second side surface is concave; a second lens with negative optical power, whose first side surface is concave and whose second side surface is concave; a third lens with positive optical power, whose second side surface is convex; a fourth lens with positive optical power, whose first side surface is convex; a fifth lens; a sixth lens; a seventh lens; and an eighth lens with positive optical power, whose first side surface is convex.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and more specifically, to an optical lens and electronic equipment. Background Art

[0002] Optical lenses are key components for automotive assisted driving systems to obtain external information. They are widely used in automotive assisted driving systems such as vehicle-mounted reversing visual systems, driving recorders, automatic parking and panoramic parking systems, and road finding systems.

[0003] With the rapid development of automated driving assistance systems, the performance requirements for automotive side-view optical lenses are becoming increasingly stringent, with developments towards high resolution, large field of view, minimal distortion, and miniaturization. Simultaneously, as automated driving assistance systems increasingly demand nighttime driving, the requirements for night vision capabilities in automotive optical lenses are also increasing.

[0004] Therefore, the market is in urgent need of an optical lens with large aperture, high relative illumination and miniaturization to meet the needs of automotive side-view applications. Summary of the Invention

[0005] In one aspect, the present application provides an optical lens. The optical lens comprises, in order from a first side to a second side along an optical axis: a first lens having negative optical power, whose first side surface is convex and whose second side surface is concave; a second lens having negative optical power, whose first side surface is concave and whose second side surface is concave; a third lens having positive optical power, whose second side surface is convex; a fourth lens having positive optical power, whose first side surface is convex; a fifth lens; a sixth lens; a seventh lens; and an eighth lens having positive optical power, whose first side surface is convex.

[0006] In some embodiments, the first side surface of the third lens is convex or concave.

[0007] In some embodiments, the second side surface of the fourth lens is convex or concave.

[0008] In some embodiments, the fifth lens has positive optical power, its first side surface is convex, and its second side surface is convex; and the sixth lens has negative optical power, its first side surface is concave, and its second side surface is convex.

[0009] In some embodiments, the fifth lens has negative optical power, its first side surface is convex, and its second side surface is concave; and the sixth lens has positive optical power, its first side surface is convex, and its second side surface is convex.

[0010] In some embodiments, the seventh lens has negative optical power, and its first side surface is concave and its second side surface is convex.

[0011] In some embodiments, the seventh lens has positive optical power, a first side surface thereof is convex, and a second side surface thereof is convex or concave.

[0012] In some embodiments, the second side surface of the eighth lens is convex or concave.

[0013] In some embodiments, the fifth lens and the sixth lens form a cemented lens.

[0014] In some embodiments, the effective focal length F8 of the eighth lens and the total effective focal length F of the optical lens satisfy: F8 / F≥0.1.

[0015] In some embodiments, a curvature radius R32 of the second side surface of the third lens and a curvature radius R41 of the first side surface of the fourth lens satisfy: R32 / R41≤-0.05.

[0016] In some embodiments, the effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens satisfy: F4 / F≥0.1.

[0017] In some embodiments, the radius of curvature R21 of the first side surface of the second lens and the total effective focal length F of the optical lens satisfy: R21 / F≤-0.1.

[0018] In some embodiments, a curvature radius R51 of the first side surface of the fifth lens and a curvature radius R62 of the second side surface of the sixth lens satisfy: R51 / R62≤-0.05.

[0019] In some embodiments, the total length TTL of the optical lens and the total effective focal length F of the optical lens satisfy: TTL / F≤12.

[0020] In some embodiments, the total length TTL of the optical lens, the maximum field of view FOV of the optical lens, and the image height H corresponding to the maximum field of view satisfy: TTL / H / FOV≤0.05.

[0021] In some embodiments, the total length TTL of the optical lens, the maximum field angle θ of the optical lens expressed in radians, and the image height H corresponding to the maximum field angle satisfy: TTL / H / θ≤2.6.

[0022] In some embodiments, the maximum field of view FOV of the optical lens, the maximum clear aperture D of the first lens corresponding to the maximum field of view, and the image height H corresponding to the maximum field of view satisfy: D / H / FOV≤0.025.

[0023] In some embodiments, the maximum field angle θ of the optical lens expressed in radians, the maximum clear aperture D of the first lens corresponding to the maximum field angle, and the image height H corresponding to the maximum field angle satisfy: D / H / θ≤1.5.

[0024] In some embodiments, the total effective focal length F of the optical lens, the maximum field of view FOV of the optical lens, and the image height H corresponding to the maximum field of view satisfy: (FOV×H) / F≥150.

[0025] In some embodiments, the total effective focal length F of the optical lens, the maximum field angle θ of the optical lens expressed in radians, and the image height H corresponding to the maximum field angle satisfy: (θ×H) / F≥3.

[0026] In some embodiments, the total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: F / ENPD≤1.8.

[0027] In some embodiments, the effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy: F1 / F≤-0.1.

[0028] In some embodiments, a radius of curvature R81 of the first side surface of the eighth lens and a total effective focal length F of the optical lens satisfy: R81 / F≥1.5.

[0029] In some embodiments, the effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy: F2 / F≤-0.1.

[0030] In some embodiments, the effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy: F3 / F≥0.2.

[0031] In some embodiments, the effective focal length F2 of the second lens and the effective focal length F3 of the third lens satisfy: -5≤F2 / F3≤-0.02.

[0032] In some embodiments, the total effective focal length F of the optical lens, the maximum field angle θ of the optical lens expressed in radians, and the image height H corresponding to the maximum field angle satisfy: |(HF×θ) / (F×θ)|≤1.5.

[0033] In some embodiments, the curvature radius R11 of the first side surface of the first lens and the total effective focal length F of the optical lens satisfy: 1.5≤R11 / F≤50.

[0034] The present application also provides an optical lens. The optical lens includes: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens, in order from the first side to the second side along the optical axis, wherein the first lens and the second lens have negative optical power; the third lens, the fourth lens, and the eighth lens have positive optical power; and the maximum field of view (FOV) of the optical lens, the maximum aperture D of the first lens corresponding to the maximum field of view, and the image height H corresponding to the maximum field of view satisfy the following conditions: D / H / FOV≤0.025.

[0035] In some embodiments, the first side surface of the first lens is convex, and the second side surface is concave.

[0036] In some embodiments, the first side surface of the second lens is concave, and the second side surface is concave;

[0037] In some embodiments, the first side surface of the third lens is convex or concave, and the second side surface is convex.

[0038] In some embodiments, the first side surface of the fourth lens is convex, and the second side surface is convex or concave.

[0039] In some embodiments, the fifth lens has positive optical power, its first side surface is convex, and its second side surface is convex; and the sixth lens has negative optical power, its first side surface is concave, and its second side surface is convex.

[0040] In some embodiments, the fifth lens has negative optical power, its first side surface is convex, and its second side surface is concave; and the sixth lens has positive optical power, its first side surface is convex, and its second side surface is convex.

[0041] In some embodiments, the seventh lens has negative optical power, and its first side surface is concave and its second side surface is convex.

[0042] In some embodiments, the seventh lens has positive optical power, a first side surface thereof is convex, and a second side surface thereof is convex or concave.

[0043] In some embodiments, the first side surface of the eighth lens is convex, and the second side surface is convex or concave.

[0044] In some embodiments, the fifth lens and the sixth lens form a cemented lens.

[0045] In some embodiments, the effective focal length F8 of the eighth lens and the total effective focal length F of the optical lens satisfy: F8 / F≥0.1.

[0046] In some embodiments, a curvature radius R32 of the second side surface of the third lens and a curvature radius R41 of the first side surface of the fourth lens satisfy: R32 / R41≤-0.05.

[0047] In some embodiments, the effective focal length F4 of the fourth lens and the total effective focal length F of the optical lens satisfy: F4 / F≥0.1.

[0048] In some embodiments, the radius of curvature R21 of the first side surface of the second lens and the total effective focal length F of the optical lens satisfy: R21 / F≤-0.1.

[0049] In some embodiments, a curvature radius R51 of the first side surface of the fifth lens and a curvature radius R62 of the second side surface of the sixth lens satisfy: R51 / R62≤-0.05.

[0050] In some embodiments, the total length TTL of the optical lens and the total effective focal length F of the optical lens satisfy: TTL / F≤12.

[0051] In some embodiments, the total length TTL of the optical lens satisfies: TTL / H / FOV≤0.05.

[0052] In some embodiments, the maximum field angle θ of the optical lens expressed in radians satisfies: TTL / H / θ≤2.6.

[0053] In some embodiments, the maximum field angle θ of the optical lens expressed in radians satisfies: D / H / θ≤1.5.

[0054] In some embodiments, the total effective focal length F of the optical lens satisfies: (FOV×H) / F≥150.

[0055] In some embodiments, the total effective focal length F of the optical lens and the maximum field angle θ of the optical lens expressed in radians satisfy: (θ×H) / F≥3.

[0056] In some embodiments, the total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: F / ENPD≤1.8.

[0057] In some embodiments, the effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy: F1 / F≤-0.1.

[0058] In some embodiments, a radius of curvature R81 of the first side surface of the eighth lens and a total effective focal length F of the optical lens satisfy: R81 / F≥1.5.

[0059] In some embodiments, the effective focal length F2 of the second lens and the total effective focal length F of the optical lens satisfy: F2 / F≤-0.1.

[0060] In some embodiments, the effective focal length F3 of the third lens and the total effective focal length F of the optical lens satisfy: F3 / F≥0.2.

[0061] In some embodiments, the effective focal length F2 of the second lens and the effective focal length F3 of the third lens satisfy: -5≤F2 / F3≤-0.02.

[0062] In some embodiments, the total effective focal length F of the optical lens and the maximum field angle θ of the optical lens expressed in radians satisfy: |(HF×θ) / (F×θ)|≤1.5.

[0063] In some embodiments, the curvature radius R11 of the first side surface of the first lens and the total effective focal length F of the optical lens satisfy: 1.5≤R11 / F≤50.

[0064] On the other hand, the present application also provides an electronic device, including the optical lens provided according to the present application and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

[0065] This application uses eight lenses, and by optimizing the shape, optical focal length, etc. of each lens, the optical lens has at least one beneficial effect of high resolution, small aperture, miniaturization, large aperture, high relative illumination, small distortion, and large field of view. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Other features, purposes and advantages of the present application will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0067] Figure 1 Schematic diagram showing the structure of an optical lens according to Example 1 of the present application;

[0068] Figure 2 Schematic diagram showing the structure of an optical lens according to Example 2 of the present application;

[0069] Figure 3 Schematic diagram showing the structure of an optical lens according to Example 3 of the present application;

[0070] Figure 4 Schematic diagram showing the structure of an optical lens according to Example 4 of the present application;

[0071] Figure 5 Schematic diagram showing the structure of an optical lens according to Example 5 of the present application;

[0072] Figure 6 Schematic diagram showing the structure of an optical lens according to Example 6 of the present application;

[0073] Figure 7 Schematic diagram showing the structure of an optical lens according to Example 7 of the present application;

[0074] Figure 8 Schematic diagram showing the structure of an optical lens according to Example 8 of the present application;

[0075] Figure 9 A schematic structural diagram illustrating an optical lens according to Example 9 of the present application; and

[0076] Figure 10 Schematic diagram showing the structure of an optical lens according to embodiment 10 of the present application. DETAILED DESCRIPTION

[0077] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0078] It should be noted that in this specification, the terms "first," "second," "third," etc., are used solely to distinguish one feature from another and do not limit the features. Thus, the first lens discussed below could also be referred to as the second lens or the third lens without departing from the teachings of this application.

[0079] In the drawings, the thickness, size, and shape of the lenses are slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical and aspherical surfaces shown in the drawings are provided by way of example. That is, the shapes of the spherical and aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustration only and are not drawn strictly to scale.

[0080] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the first side is called the first side surface of the lens, the surface of each lens closest to the second side is called the second side surface of the lens, and the surface of the optical lens closest to the second side is called the second side surface of the optical lens. For example, the first side may be the object side, and the second side may be the image side; or, the first side may be the imaging side, and the second side may be the image source side.

[0081] It should also be understood that the terms "comprises," "including," "having," "includes," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application." And, the term "exemplary" is intended to refer to an example or illustration.

[0082] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0083] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0084] The features, principles and other aspects of the present application are described in detail below.

[0085] In an exemplary embodiment, the optical lens includes, for example, eight lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens, arranged in sequence from a first side to a second side along the optical axis.

[0086] In exemplary embodiments, the optical lens provided herein can be used, for example, as a vehicle-mounted side-view 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, and the second side of the optical lens can be the imaging surface of the optical lens.

[0087] In exemplary embodiments, the optical lens provided herein can be used, for example, as a projection lens or a laser radar transmitter 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 surface of the optical lens can be the image source surface of the optical lens.

[0088] In an exemplary embodiment, the optical lens may further include a photosensitive element disposed on the second side surface. Optionally, the photosensitive element disposed on the second side surface may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0089] In an exemplary embodiment, the first lens may have a negative optical focal length and may have a convex-concave surface. The first lens has a negative optical focal length and has a divergent effect on the light passing through the first lens, and the light emitted through the first lens can maintain an upward trend. Under the same field of view angle, the light emitted through the second side of the first lens can enable the rear optical system to have a larger light receiving surface. The first side of the first lens is a convex surface, which can enable the light to reach the rear optical system through the first lens at a smaller incident angle on the first side of the first lens, which is conducive to achieving a large field of view. At the same time, under the same field of view angle, the corresponding image height can be increased, which helps to receive light at a larger angle and reduce distortion. In addition, in practical applications, the first side of the first lens is a convex surface, which is conducive to the sliding of water droplets and reduces the impact on imaging.

[0090] In an exemplary embodiment, the second lens may have negative optical power and may be biconcave. The second lens, with its negative optical power, collects light rays passing through the first lens, helping to smooth the path of forward light rays and improve resolution. Furthermore, the second lens, with its negative optical power, diverges light rays. Under the same field of view, light rays emitted through the second side of the second lens provide the rear optical system with a larger light-receiving surface. This, on the one hand, facilitates expansion of the image plane, and on the other hand, increases the physical aperture of the diaphragm, thereby increasing the amount of light entering and enhancing image brightness. The concave first side of the second lens can be used in conjunction with a first lens with a concave second side to alter the path of marginal light rays, facilitating a wide field of view. This also helps reduce the front diameter of the optical lens, reducing its size and enabling miniaturization and cost reduction. Furthermore, the concave first side of the second lens also allows light rays to have a significant deflection after entering the second lens, thereby facilitating alteration of the path of wide-angle light rays.

[0091] In an exemplary embodiment, the third lens may have positive focal power, and the third lens may have a biconvex surface or a concave-convex surface. The third lens has positive focal power, which allows the light to smoothly transition to the rear lens, which is beneficial to improving the resolution capability. The second side of the third lens is convex, and it is used with a fourth lens whose first side is convex to converge the light. On the one hand, it allows the light diverging from the front to smoothly enter the rear optical system, and on the other hand, it can lower the position of the light incident on the rear optical system, which is beneficial to reducing the rear port diameter of the optical lens. In addition, the shape of the second side of the third lens and the first side of the fourth lens may be significantly different, which can significantly change the direction of the light. At the same time, when the aperture of the first side of the third lens is the same, the front port diameter of the optical lens can be reduced, achieving the purpose of miniaturization of the optical lens.

[0092] In an exemplary embodiment, the fourth lens may have positive optical power, and the fourth lens may have a biconvex surface or a convex-concave surface. The fourth lens has a positive optical power, which can further converge light, allowing the light to smoothly transition to the rear optical system after passing through the third lens and the fourth lens, thereby improving the resolution. At the same time, the fourth lens's convergence of light can further reduce the rear port diameter of the optical lens. In addition, when the second side surface of the third lens is convex and the first side surface of the fourth lens is convex, the fourth lens can significantly change the direction of light. When the diameter of the fourth lens remains the same, the front port diameter of the optical lens can be reduced, achieving the purpose of miniaturization of the optical lens. When the fourth lens has a meniscus shape with a convex-concave surface, it can collect light entering through the third lens. At the same time, the positive optical power is conducive to light convergence, allowing the light to smoothly transition to the rear optical system, thereby improving the resolution.

[0093] In an exemplary embodiment, the fifth lens element may have negative optical power and a convex-concave surface. Because the fifth lens element includes at least two positive optical power lenses in front of it, this may alter the path of light and introduce significant aberrations. The fifth lens element has negative optical power, which diverges the light. By controlling the focal length of the fifth lens element, various aberrations introduced by the positive optical power lenses in front can be effectively corrected, improving image quality. Furthermore, the first side surface of the fifth lens element is convex, further converging light, ensuring a smooth transition from the third and fourth lenses to the rear lens element. Furthermore, when the optical power of the cemented lens formed by the fifth and sixth lenses is positive, this convergence of light helps further reduce the diameter of the rear port of the optical lens.

[0094] In an exemplary embodiment, the fifth lens element may have positive optical power and may be biconvex. The fifth lens element has positive optical power, converging light. By properly configuring the optical power of the fifth lens element, aberrations can be further reduced, improving image quality. It also effectively and smoothly converges light, ensuring it reaches the image plane smoothly. Furthermore, the first side surface of the fifth lens element is convex, further converging light, ensuring a smooth transition from the third and fourth lenses to the rear lens element. Furthermore, when the optical power of the cemented lens formed by the fifth and sixth lenses is positive, this converging effect helps further reduce the rear port diameter of the optical lens.

[0095] In an exemplary embodiment, the sixth lens element may have negative optical power and a concave-convex surface. Because the sixth lens element includes at least two lenses with positive optical power in front of it, this may cause significant aberrations while altering the light path. The negative optical power of the sixth lens diverges the light, and by controlling the focal length of the sixth lens, various aberrations introduced by the positive optical power lenses in front can be effectively corrected, improving image quality. Furthermore, the second side surface of the sixth lens element is convex, further converging light, ensuring a smooth transition from the third and fourth lenses to the rear lens element. Furthermore, when the optical power of the cemented lens formed by the fifth and sixth lenses is positive, this convergence of light helps further reduce the diameter of the rear port of the optical lens.

[0096] In an exemplary embodiment, the sixth lens element may have positive optical power and may be biconvex. The sixth lens element has positive optical power, converging light. By properly configuring the optical power of the sixth lens element, aberrations can be further reduced, improving image quality. It also effectively and smoothly converges light, ensuring it reaches the image plane smoothly. Furthermore, the second side surface of the sixth lens element is convex, further converging light, ensuring a smooth transition from the third and fourth lenses to the rear lens element. Furthermore, when the optical power of the cemented lens formed by the fifth and sixth lenses is positive, the converging effect helps further reduce the rear port diameter of the optical lens.

[0097] In an exemplary embodiment, the seventh lens may have negative optical power and a concave-convex surface. Such an optical power and surface configuration of the seventh lens may diverge the front light, thereby increasing the back focus and facilitating module assembly.

[0098] In an exemplary embodiment, the seventh lens element may have positive optical power and may have a convex-concave or biconvex surface. The seventh lens element's positive optical power facilitates light convergence, smoothing the light path and reducing sensitivity. It also reduces the aperture and length of the optical lens, facilitating miniaturization.

[0099] In exemplary embodiments, the eighth lens element may have positive optical power and may have a convexo-concave or biconvex surface. When the eighth lens element has positive optical power and a flat biconvex surface, it allows diverging light to smoothly enter the rear optical system, converging it and helping to reduce the CRA (Current Recognition Area) at the edge of the field of view (FRONT) and improve relative illumination. Furthermore, a larger radius of curvature of the first side surface of the eighth lens element facilitates smooth light transitions, reducing the sensitivity of the optical lens.

[0100] In an exemplary embodiment, a light diaphragm may be positioned between the fourth and fifth lenses to further enhance the imaging quality of the optical lens. Placing the diaphragm between the fourth and fifth lenses helps effectively converge light entering the optical lens, reducing the rear lens aperture and lowering the sensitivity of the optical lens assembly.

[0101] In an exemplary embodiment, the fifth and sixth lenses can form a lens bond. This arrangement allows for a smooth transition of light rays passing through the fourth lens to the imaging plane, reducing the overall length of the optical lens and facilitating full correction of various aberrations within the optical lens. While maintaining a compact structure, it can also improve resolution and optimize optical properties such as distortion and CRA. Furthermore, the bonded lens formed by the fifth and sixth lenses offers the following advantages: it can reduce the air gap between the fifth and sixth lenses, thereby reducing the overall length of the optical lens; it can reduce the number of assembly components between the fifth and sixth lenses, thus reducing the number of steps and costs; it can reduce sensitivity to tolerances such as tilt or deflection that occur during the assembly of each lens; it can reduce light loss caused by reflections between the lenses, thereby improving illumination; and it can further reduce field curvature, facilitating correction of off-axis aberrations within the optical lens.

[0102] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: F8 / F ≥ 0.1. F8 is the effective focal length of the eighth lens element, and F is the total effective focal length of the optical lens. This F8 / F ≥ 0.1 relationship allows for convergence of light, helping to reduce the CRA (Current Recognition Area) at the edge of the field of view (FRA) and improve relative illumination. More specifically, F8 and F may further satisfy the following relationship: F8 / F ≥ 0.5.

[0103] In an exemplary embodiment, the optical lens according to the present application may satisfy: R32 / R41≤-0.05. Here, R32 is the radius of curvature of the second side of the third lens, and R41 is the radius of curvature of the first side of the fourth lens. The optical lens satisfies R32 / R41≤-0.05, which can significantly differ the shape of the second side of the third lens and the first side of the fourth lens, helping to significantly change the direction of light, further converging the light that diverges after passing through the first and second lenses, and further reducing the rear port diameter of the optical lens, which is conducive to miniaturization of the optical lens. More specifically, R32 and R41 can further satisfy: R32 / R41≤-0.1.

[0104] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: F4 / F ≥ 0.1. Here, F4 is the effective focal length of the fourth lens element, and F is the total effective focal length of the optical lens. This F4 / F ≥ 0.1 relationship allows the fourth lens element to further converge light, allowing it to smoothly transition to the rear lens element after passing through the third and fourth lenses, improving resolution. Furthermore, the convergence of light by the fourth lens element can further reduce the rear port diameter of the optical lens, facilitating miniaturization. More specifically, F4 and F can further satisfy the following relationship: F4 / F ≥ 0.5.

[0105] In an exemplary embodiment, the optical lens according to the present application may satisfy the following conditions: R21 / F ≤ -0.1. Here, R21 is the radius of curvature of the first side surface of the second lens, and F is the total effective focal length of the optical lens. The optical lens satisfying R21 / F ≤ -0.1 helps control the shape of the first side surface of the second lens. It also interacts with the second side surface of the first lens to change the direction of marginal light, facilitating a wide field of view. Furthermore, it helps reduce the front port diameter of the optical lens, reducing its volume and achieving miniaturization. More specifically, R21 and F may further satisfy the following conditions: R21 / F ≤ -1.

[0106] In an exemplary embodiment, the optical lens according to the present application may satisfy the following conditions: R51 / R62 ≤ -0.05, where R51 is the radius of curvature of the first side surface of the fifth lens, and R62 is the radius of curvature of the second side surface of the sixth lens. To satisfy the following conditions: R51 / R62 ≤ -0.05, the first side surface of the fifth lens and the second side surface of the sixth lens may be configured as a special lens shape, which further serves to converge light, allowing the light to smoothly transition to the rear lens after passing through the third and fourth lenses. Furthermore, when the cemented lens formed by the fifth and sixth lenses has positive focal power, the convergence of light can further reduce the rear port diameter of the optical lens. More specifically, R51 and R61 may further satisfy the following conditions: R51 / R62 ≤ -0.1.

[0107] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: TTL / F ≤ 12. Here, TTL is the total length of the optical lens, and F is the total effective focal length of the optical lens. This relationship effectively limits the length of the optical lens, facilitating miniaturization. More specifically, TTL and F may further satisfy the following relationship: TTL / F ≤ 10. The total length (TTL) of the optical lens may be the distance from the center of the first side surface of the first lens element to the imaging plane along the optical axis.

[0108] In an exemplary embodiment, the optical lens according to the present application may satisfy the following conditions: TTL / H / FOV ≤ 0.05. Here, TTL is the total length of the optical lens, FOV is the maximum field of view of the optical lens, and H is the image height corresponding to the maximum field of view of the optical lens. When the optical lens satisfies TTL / H / FOV ≤ 0.05, the length of the optical lens can be effectively limited for the same image height on the same imaging plane, facilitating lens miniaturization. More specifically, TTL, FOV, and H may further satisfy the following conditions: TTL / H / FOV ≤ 0.045.

[0109] In an exemplary embodiment, the optical lens according to the present application may satisfy the following conditions: TTL / H / θ ≤ 2.6. Here, TTL is the total length of the optical lens, θ is the maximum field of view of the optical lens expressed in radians, and H is the image height corresponding to the maximum field of view of the optical lens. When the optical lens satisfies TTL / H / θ ≤ 2.6, the length of the optical lens can be effectively limited for the same image height on the same imaging plane, facilitating lens miniaturization. More specifically, TTL, θ, and H may further satisfy the following conditions: TTL / H / θ ≤ 2.4.

[0110] In an exemplary embodiment, the optical lens according to the present application may satisfy the following conditions: D / H / FOV ≤ 0.025. FOV is the maximum field of view of the optical lens, D is the maximum aperture of the first lens corresponding to the maximum field of view of the optical lens, and H is the image height corresponding to the maximum field of view of the optical lens. Satisfying D / H / FOV ≤ 0.025 in the optical lens helps reduce the front aperture of the optical lens and achieve miniaturization. More specifically, FOV, D, and H may further satisfy the following conditions: D / H / FOV ≤ 0.02.

[0111] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: D / H / θ ≤ 1.5. Here, θ is the maximum field of view of the optical lens expressed in radians, D is the maximum aperture of the first lens corresponding to the maximum field of view of the optical lens, and H is the image height corresponding to the maximum field of view of the optical lens. When the optical lens satisfies D / H / θ ≤ 1.5, it helps to reduce the front diameter of the optical lens and achieve miniaturization of the optical lens. More specifically, θ, D, and H may further satisfy the following relationship: D / H / θ ≤ 1.2.

[0112] In an exemplary embodiment, the optical lens according to the present application may satisfy: (FOV×H) / F≥150. Wherein, F is the total effective focal length of the optical lens, FOV is the maximum field of view of the optical lens, and H is the image height corresponding to the maximum field of view of the optical lens. The optical lens satisfies (FOV×H) / F≥150, which helps the optical lens have a large field of view. In addition, under the same imaging surface, the focal length of the optical lens can be made smaller, which helps to receive light at a larger angle and help reduce distortion. More specifically, F, FOV, and H can further satisfy: (FOV×H) / F≥180.

[0113] In an exemplary embodiment, the optical lens according to the present application may satisfy: (θ×H) / F≥3. Wherein, F is the total effective focal length of the optical lens, θ is the maximum field angle of the optical lens expressed in radians, and H is the image height corresponding to the maximum field angle of the optical lens. The optical lens satisfies (θ×H) / F≥3, which helps the optical lens have a large field angle. In addition, under the same imaging surface, the focal length of the optical lens can be made smaller, which helps to receive light at a larger angle and help reduce distortion. More specifically, F, θ, and H can further satisfy: (θ×H) / F≥3.5.

[0114] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: F / ENPD ≤ 1.8. Here, F is the total effective focal length of the optical lens, and ENPD is the entrance pupil diameter of the optical lens. This relationship allows the optical lens to have a large aperture, which helps increase light throughput. More specifically, F and ENPD may further satisfy the following relationship: F / ENPD ≤ 1.6.

[0115] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: F1 / F ≤ -0.1. Here, F1 is the effective focal length of the first lens element, and F is the total effective focal length of the optical lens element. This F1 / F ≤ -0.1 relationship optimizes the focal power of the first lens element, facilitating the entry of light with a wide field of view into the optical lens. More specifically, F1 and F may further satisfy the following relationship: F1 / F ≤ -0.5.

[0116] In an exemplary embodiment, the optical lens according to the present application may satisfy the following conditions: R81 / F ≥ 1.5. Here, R81 is the radius of curvature of the first side surface of the eighth lens element, and F is the total effective focal length of the optical lens. This condition allows the first side surface of the eighth lens element to have a larger radius of curvature, facilitating smoother light transitions and reducing the sensitivity of the optical lens. More specifically, R81 and F may further satisfy the following conditions: R81 / F ≥ 2.

[0117] In an exemplary embodiment, the optical lens according to the present application may satisfy: F2 / F≤-0.1. Wherein, F2 is the effective focal length of the second lens, and F is the total effective focal length of the optical lens. The optical lens satisfies F2 / F≤-0.1, and is able to collect the light entering through the first lens, which is conducive to smoothing the trend of the light in front and improving the resolution capability. At the same time, it can have a divergent effect on the light. Under the same field of view angle, the light emitted through the second side of the first lens can enable the rear optical system to have a larger light receiving surface, which is beneficial to the expansion of the image plane on the one hand, and on the other hand, it can realize the increase of the physical aperture of the diaphragm, the aperture becomes larger, and a larger amount of light can be achieved, thereby increasing the brightness of the image plane. More specifically, F2 and F can further satisfy: F2 / F≤-0.5.

[0118] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: F3 / F ≥ 0.2. Here, F3 is the effective focal length of the third lens element, and F is the total effective focal length of the optical lens. This relationship helps reduce the rear port diameter of the optical lens, thereby achieving miniaturization. More specifically, F3 and F may further satisfy the following relationship: F3 / F ≥ 0.8.

[0119] In an exemplary embodiment, the optical lens according to the present application may satisfy the following relationship: -5 ≤ F2 / F3 ≤ -0.02. F2 is the effective focal length of the second lens element, and F3 is the effective focal length of the third lens element. This relationship allows the second and third lenses to have similar focal lengths, facilitating a smooth transition of light and improving image quality. More specifically, F2 and F3 may further satisfy the following relationship: -1 ≤ F2 / F3 ≤ -0.1.

[0120] In an exemplary embodiment, the optical lens according to the present application may satisfy the following: |(HF×θ) / (F×θ)|≤1.5. Where F is the total effective focal length of the optical lens, θ is the maximum field of view of the optical lens expressed in radians, and H is the image height corresponding to the maximum field of view of the optical lens. The optical lens satisfies |(HF×θ) / (F×θ)|≤1.5. By rationally designing the focal length and field of view, the difference between the actual image height and the ideal image height can be reduced, thereby facilitating the reduction of distortion. More specifically, F, θ, and H may further satisfy the following: |(HF×θ) / (F×θ)|≤0.5.

[0121] In an exemplary embodiment, the optical lens according to the present application may satisfy: 1.5≤R11 / F≤50. Wherein, R11 is the radius of curvature of the first side of the first lens, and F is the total effective focal length of the optical lens. The optical lens satisfies 1.5≤R11 / F≤50, and is capable of controlling the radius of curvature of the first side of the first lens. On the one hand, the first lens is moved away from the image plane, and the corresponding image height becomes larger under the same field of view, which helps to receive light at a larger angle and reduce distortion. On the other hand, the light passing through the first lens does not make a steep turn, which is beneficial to reducing tolerance sensitivity. More specifically, R11 and F may further satisfy: 2≤R11 / F≤20.

[0122] In an exemplary embodiment, the first lens to the eighth lens may be spherical lenses or aspherical lenses. The present application does not specifically limit the specific number of spherical lenses and aspherical lenses. When the focus is on imaging quality, the number of aspherical lenses can be increased. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery, an aspherical lens has a better curvature radius characteristic and has the advantages of improving distortion aberration and improving astigmatism aberration. After using an aspherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality of the lens.

[0123] In an exemplary embodiment, the optical lens of the present application may further include a filter and / or protective glass disposed between the eighth lens and the imaging surface as needed to filter light with different wavelengths and prevent damage to the image-side element (e.g., chip) of the optical lens.

[0124] In an exemplary embodiment, the first, second, third, fourth, fifth, sixth, seventh, and eighth lenses may all be glass lenses. Using glass can prevent blurring of the lens image due to high and low temperature fluctuations in the operating environment, which can affect the normal operation of the lens. Specifically, when resolution quality and reliability are of primary concern, the first through eighth lenses may all be glass aspherical lenses. Of course, in applications where lower temperature stability requirements are required, the first through eighth lenses in the optical lens may all be made of plastic. Using plastic to manufacture optical lenses can effectively reduce production costs. Of course, the first through eighth lenses in the optical lens may also be made of a combination of plastic and glass.

[0125] According to the above-mentioned embodiment of the present application, the optical lens can have at least one beneficial effect of high resolution, small aperture, miniaturization, large aperture, high relative illumination, small distortion, and large field of view by reasonably setting the shape and optical focal length of each lens, while using only eight lenses.

[0126] However, those skilled in the art will appreciate that the number of lenses comprising the lens system can be varied to achieve the various results and advantages described herein without departing from the claimed technical solutions. For example, while eight lenses are described in the embodiments, the optical lens system is not limited to eight lenses. If desired, the optical lens system can also include other numbers of lenses.

[0127] Specific embodiments of the optical lens applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0128] Example 1

[0129] The following reference Figure 1 The optical lens according to Example 1 of the present application is described. Figure 1 A schematic structural diagram of an optical lens according to Example 1 of the present application is shown.

[0130] like Figure 1 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0131] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a biconvex lens with positive optical power, whose first side surface S5 is convex and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a meniscus lens with negative optical power, whose first side surface S13 is concave and the second side surface S14 is convex. The eighth lens L8 is a biconvex lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is convex.

[0132] The optical lens may further include a stop STO, which may be disposed between the fourth lens element L4 and the fifth lens element L5. For example, the stop STO may be disposed near the second side surface S8 of the fourth lens element L4.

[0133] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0134] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0135] Table 1 shows the radius of curvature R, thickness / distance d (it should be understood that the thickness d in the row where S1 is located is the center thickness d1 of the first lens L1, the thickness d in the row where S2 is located is the distance d2 on the optical axis between the second side surface of the first lens L1 and the first side surface of the second lens L2, and so on), refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 1.

[0136]

[0137] Table 1

[0138] Example 2

[0139] The following reference Figure 2 An optical lens according to Example 2 of the present application is described. Figure 2 A schematic structural diagram of an optical lens according to Example 2 of the present application is shown.

[0140] like Figure 2 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0141] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a biconvex lens with positive optical power, whose first side surface S5 is convex and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a meniscus lens with negative optical power, whose first side surface S13 is concave and the second side surface S14 is convex. The eighth lens L8 is a biconvex lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is convex.

[0142] The optical lens may further include a stop STO, which may be disposed between the fourth lens element L4 and the fifth lens element L5. For example, the stop STO may be disposed near the second side surface S8 of the fourth lens element L4.

[0143] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0144] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0145] Table 2 shows the curvature radius R, thickness / distance d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 2.

[0146]

[0147] Table 2

[0148] Example 3

[0149] The following reference Figure 3 An optical lens according to Example 3 of the present application is described. Figure 3 A schematic structural diagram of an optical lens according to Example 3 of the present application is shown.

[0150] like Figure 3 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0151] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a biconvex lens with positive optical power, whose first side surface S5 is convex and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a meniscus lens with negative optical power, whose first side surface S10 is convex and whose second side surface S11 is concave. The sixth lens L6 is a biconvex lens with positive optical power, whose first side surface S11 is convex and whose second side surface S12 is convex. The seventh lens L7 is a meniscus lens with negative optical power, whose first side surface S13 is concave and whose second side surface S14 is convex. The eighth lens L8 is a biconvex lens with positive optical power, whose first side surface S15 is convex and whose second side surface S16 is convex.

[0152] The optical lens may further include a stop STO, which may be disposed between the fourth lens element L4 and the fifth lens element L5. For example, the stop STO may be disposed near the second side surface S8 of the fourth lens element L4.

[0153] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0154] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0155] Table 3 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 3.

[0156]

[0157]

[0158] Table 5

[0159] Example 4

[0160] The following reference Figure 4 An optical lens according to Example 4 of the present application is described. Figure 4 A schematic structural diagram of an optical lens according to Example 4 of the present application is shown.

[0161] like Figure 4 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0162] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a biconvex lens with positive optical power, whose first side surface S5 is convex and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a meniscus lens with negative optical power, whose first side surface S10 is convex and whose second side surface S11 is concave. The sixth lens L6 is a biconvex lens with positive optical power, whose first side surface S11 is convex and whose second side surface S12 is convex. The seventh lens L7 is a meniscus lens with negative optical power, whose first side surface S13 is concave and whose second side surface S14 is convex. The eighth lens L8 is a biconvex lens with positive optical power, whose first side surface S15 is convex and whose second side surface S16 is convex.

[0163] The optical lens may further include a stop STO, which may be disposed between the fourth lens element L4 and the fifth lens element L5. For example, the stop STO may be disposed near the second side surface S8 of the fourth lens element L4.

[0164] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0165] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0166] Table 4 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 4.

[0167]

[0168]

[0169] Table 4

[0170] Example 5

[0171] The following reference Figure 5 An optical lens according to Example 5 of the present application is described. Figure 5 A structural schematic diagram of an optical lens according to Example 5 of the present application is shown.

[0172] like Figure 5 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0173] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a meniscus lens with positive optical power, whose first side surface S5 is concave and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a biconvex lens with positive optical power, whose first side surface S13 is convex and the second side surface S14 is convex. The eighth lens L8 is a meniscus lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is concave.

[0174] The optical lens may further include a stop STO, which may be disposed between the fourth lens L4 and the fifth lens L5.

[0175] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0176] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0177] Table 5 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 5.

[0178]

[0179] Table 5

[0180] Example 6

[0181] The following reference Figure 6 An optical lens according to Example 6 of the present application is described. Figure 6 A structural schematic diagram of an optical lens according to Example 6 of the present application is shown.

[0182] like Figure 6 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0183] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a meniscus lens with positive optical power, whose first side surface S5 is concave and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a biconvex lens with positive optical power, whose first side surface S13 is convex and the second side surface S14 is convex. The eighth lens L8 is a meniscus lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is concave.

[0184] The optical lens may further include a stop STO, which may be disposed between the fourth lens L4 and the fifth lens L5.

[0185] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0186] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0187] Table 6 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 6.

[0188]

[0189] Table 6

[0190] Example 7

[0191] The following reference Figure 7 An optical lens according to Example 7 of the present application is described. Figure 7 A structural schematic diagram of an optical lens according to Example 7 of the present application is shown.

[0192] like Figure 7As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0193] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a meniscus lens with positive optical power, whose first side surface S5 is concave and whose second side surface S6 is convex. The fourth lens L4 is a meniscus lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is concave. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a biconvex lens with positive optical power, whose first side surface S13 is convex and the second side surface S14 is convex. The eighth lens L8 is a meniscus lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is concave.

[0194] The optical lens may further include a stop STO, which may be disposed between the fourth lens L4 and the fifth lens L5.

[0195] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0196] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0197] Table 7 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 7.

[0198]

[0199]

[0200] Table 7

[0201] Example 8

[0202] The following reference Figure 8 An optical lens according to Example 8 of the present application is described. Figure 8 A structural schematic diagram of an optical lens according to Example 8 of the present application is shown.

[0203] like Figure 8 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0204] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a meniscus lens with positive optical power, whose first side surface S5 is concave and whose second side surface S6 is convex. The fourth lens L4 is a meniscus lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is concave. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a biconvex lens with positive optical power, whose first side surface S13 is convex and the second side surface S14 is convex. The eighth lens L8 is a meniscus lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is concave.

[0205] The optical lens may further include a stop STO, which may be disposed between the fourth lens L4 and the fifth lens L5.

[0206] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0207] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0208] Table 8 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 8.

[0209]

[0210]

[0211] Example 9

[0212] The following reference Figure 9 An optical lens according to Example 9 of the present application is described. Figure 9 A schematic structural diagram of an optical lens according to Example 9 of the present application is shown.

[0213] like Figure 9 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0214] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a meniscus lens with positive optical power, whose first side surface S5 is concave and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a meniscus lens with positive optical power, whose first side surface S13 is convex and the second side surface S14 is concave. The eighth lens L8 is a meniscus lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is concave.

[0215] The optical lens may further include a stop STO, which may be disposed between the fourth lens L4 and the fifth lens L5.

[0216] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0217] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0218] Table 9 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 9.

[0219]

[0220]

[0221] Table 9

[0222] Example 10

[0223] The following reference Figure 10 An optical lens according to Example 10 of the present application is described. Figure 10 A schematic structural diagram of an optical lens according to Example 10 of the present application is shown.

[0224] like Figure 10 As shown, the optical lens includes, from the first side to the second side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7 and an eighth lens L8.

[0225] The first lens L1 is a meniscus lens with negative optical power, whose first side surface S1 is convex and whose second side surface S2 is concave. The second lens L2 is a biconcave lens with negative optical power, whose first side surface S3 is concave and whose second side surface S4 is concave. The third lens L3 is a meniscus lens with positive optical power, whose first side surface S5 is concave and whose second side surface S6 is convex. The fourth lens L4 is a biconvex lens with positive optical power, whose first side surface S7 is convex and whose second side surface S8 is convex. The fifth lens L5 is a biconvex lens with positive optical power, whose first side surface S10 is convex and whose second side surface S11 is convex. The sixth lens L6 is a meniscus lens with negative optical power, whose first side surface S11 is concave and the second side surface S12 is convex. The seventh lens L7 is a meniscus lens with positive optical power, whose first side surface S13 is convex and the second side surface S14 is concave. The eighth lens L8 is a meniscus lens with positive optical power, whose first side surface S15 is convex and the second side surface S16 is concave.

[0226] The optical lens may further include a stop STO, which may be disposed between the fourth lens L4 and the fifth lens L5.

[0227] For example, the optical lens may further include auxiliary lenses L9 and L10 with no optical power. Auxiliary lens L9 may have a first side surface S17 and a second side surface S18, and auxiliary lens L10 may have a first side surface S19 and a second side surface S20. Optionally, auxiliary lenses L9 and L10 may be filters or protective glass. Filters may be used to correct color deviation. Protective glass may be used to protect the image sensor chip IMA located at the imaging surface S21.

[0228] The optical lens provided herein can be used, for example, as a vehicle-mounted side-view lens. Light from an object sequentially passes through surfaces S1 to S20 and is ultimately imaged on an imaging surface S21 disposed on the second side, where an image sensor chip IMA is disposed.

[0229] Table 10 shows the curvature radius R, thickness / spacing d, refractive index Nd, and Abbe number Vd of each lens of the optical lens of Example 10.

[0230]

[0231] Table 10

[0232] In summary, Examples 1 to 10 respectively satisfy the relationships shown in Table 11. In Table 11, the units of TTL, H, D, F, F1, F2, F3, F4, F5, F6, F7, F8, and ENPD are millimeters (mm), and the unit of FOV is degrees (°).

[0233]

[0234]

[0235] Table 11

[0236] The present application also provides an electronic device, which may include an optical lens according to the above-described embodiment of the present application and an imaging element for converting an optical image formed by the optical lens into an electrical signal. The electronic device may be a standalone electronic device such as a range detection camera, or an imaging module integrated into a range detection device. Furthermore, the electronic device may be a standalone imaging device such as an onboard camera, or an imaging module integrated into a driver assistance system.

[0237] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. An optical lens, characterized in that: The optical axis includes, in order from the first side to the second side: a first lens having negative optical power, wherein the first side surface is convex and the second side surface is concave; a second lens having negative optical power, wherein the first side surface is concave and the second side surface is concave; a third lens element having positive optical power and a convex second side surface; a fourth lens element having positive optical power and a convex first side surface; Fifth lens; a sixth lens; a seventh lens; and an eighth lens element having positive optical power, wherein the first side surface thereof is convex; The maximum field angle θ of the optical lens, expressed in radians, the maximum clear aperture D of the first lens corresponding to the maximum field angle, and the image height H corresponding to the maximum field angle satisfy the following conditions: 0.8961≤D / H / θ≤1.5; The total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: 1.4400≤F / ENPD≤1.

8.

2. The optical lens according to claim 1, wherein: The first side surface of the third lens is a convex surface or a concave surface.

3. The optical lens according to claim 1, wherein: The second side surface of the fourth lens is a convex surface or a concave surface.

4. The optical lens according to claim 1, wherein: The fifth lens has positive refractive power, and its first side surface is convex, and its second side surface is convex; and The sixth lens has negative optical power, a first side surface of the sixth lens is concave, and a second side surface of the sixth lens is convex.

5. The optical lens according to claim 1, wherein: The fifth lens has negative optical power, a first side surface of the fifth lens is convex, and a second side surface of the fifth lens is concave; and The sixth lens has positive refractive power, and its first side surface is convex, and its second side surface is convex.

6. The optical lens according to claim 1, wherein: The seventh lens has negative optical power, a first side surface of the seventh lens is concave, and a second side surface of the seventh lens is convex.

7. The optical lens according to claim 1, wherein: The seventh lens has positive refractive power, a first side surface of the seventh lens is convex, and a second side surface is convex or concave.

8. The optical lens according to claim 1, wherein: The second side surface of the eighth lens is a convex surface or a concave surface.

9. The optical lens according to claim 1, wherein: The fifth lens and the sixth lens form a cemented lens.

10. The optical lens according to claim 1, wherein: The effective focal length F8 of the eighth lens and the total effective focal length F of the optical lens satisfy the following: 0.1≤F8 / F≤7.1779.

11. The optical lens according to claim 1, wherein: A curvature radius R32 of the second side surface of the third lens and a curvature radius R41 of the first side surface of the fourth lens satisfy: -2.2194≤R32 / R41≤-0.

05.

12. The optical lens according to any one of claims 1 to 11, 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: F4 / F≥0.

1.

13. The optical lens according to any one of claims 1 to 11, characterized in that: The curvature radius R21 of the first side surface of the second lens and the total effective focal length F of the optical lens satisfy: -2.4951≤R21 / F≤-0.

1.

14. The optical lens according to any one of claims 1 to 11, characterized in that: A curvature radius R51 of the first side surface of the fifth lens and a curvature radius R62 of the second side surface of the sixth lens satisfy: R51 / R62≤-0.

05.

15. The optical lens according to any one of claims 1 to 11, characterized in that: The total length TTL of the optical lens and the total effective focal length F of the optical lens satisfy the following conditions: 8.0575≤TTL / F≤12.

16. The optical lens according to any one of claims 1 to 11, characterized in that: The total length TTL of the optical lens, the maximum field of view FOV of the optical lens, and the image height H corresponding to the maximum field of view satisfy the following conditions: TTL / H / FOV≤0.

05.

17. The optical lens according to any one of claims 1 to 11, characterized in that: The total length TTL of the optical lens, the maximum field angle θ of the optical lens expressed in radians, and the image height H corresponding to the maximum field angle satisfy the following conditions: 1.9114≤TTL / H / θ≤2.

6.

18. The optical lens according to any one of claims 1 to 11, characterized in that: The maximum field of view FOV of the optical lens, the maximum clear aperture D of the first lens corresponding to the maximum field of view, and the image height H corresponding to the maximum field of view satisfy the following conditions: 0.0156≤D / H / FOV≤0.

02.

19. The optical lens according to any one of claims 1 to 11, characterized in that: The maximum field angle θ of the optical lens expressed in radians, the maximum clear aperture D of the first lens corresponding to the maximum field angle, and the image height H corresponding to the maximum field angle satisfy: 0.8961≤D / H / θ≤1.

2.

20. The optical lens according to any one of claims 1 to 11, characterized in that: The total effective focal length F of the optical lens, the maximum field of view FOV of the optical lens, and the image height H corresponding to the maximum field of view satisfy the following requirements: 243.2328≥(FOV×H) / F≥150.

21. The optical lens according to any one of claims 1 to 11, characterized in that: The total effective focal length F of the optical lens, the maximum field angle θ of the optical lens expressed in radians, and the image height H corresponding to the maximum field angle satisfy the following conditions: 4.2452≥(θ×H) / F≥3.

22. The optical lens according to any one of claims 1 to 11, characterized in that: The total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: 1.4400≤F / ENPD≤1.

6.

23. The optical lens according to any one of claims 1 to 11, characterized in that: The effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy the following: -3.2122≤F1 / F≤-0.

1.

24. The optical lens according to any one of claims 1 to 11, characterized in that: The curvature radius R81 of the first side surface of the eighth lens and the total effective focal length F of the optical lens satisfy the following relationship: 1.5≤R81 / F≤3.0381.

25. The optical lens according to any one of claims 1 to 11, 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 following: -2.7967≤F2 / F≤-0.

1.

26. The optical lens according to any one of claims 1 to 11, 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: 0.2≤F3 / F≤9.4331.

27. The optical lens according to any one of claims 1 to 11, characterized in that: The effective focal length F2 of the second lens and the effective focal length F3 of the third lens satisfy: -5≤F2 / F3≤-0.

02.

28. The optical lens according to any one of claims 1 to 11, characterized in that: The total effective focal length F of the optical lens, the maximum field angle θ of the optical lens expressed in radians, and the image height H corresponding to the maximum field angle satisfy: (HF×θ) / (F×θ) ≤1.

5.

29. The optical lens according to any one of claims 1 to 11, characterized in that: The curvature radius R11 of the first side surface of the first lens and the total effective focal length F of the optical lens satisfy the following relationship: 1.5≤R11 / F≤50.

30. The optical lens according to claim 1, wherein: The optical lens satisfies at least one of the following conditions: 2.3173≤F8 / F≤7.1779, -2.2194≤R32 / R41≤-1.0095, F4 / F≥0.5, -2.4951≤R21 / F≤-1.7421, R51 / R62≤-0.1, 8.0575≤TTL / F≤10, 0.0334≤TTL / H / FOV≤0.0380, 1.9114≤TTL / H / θ≤2.1774, 0.0156≤D / H / FOV≤0.0180, 0.8961≤D / H / θ≤1.0301, 243.2328≥(FOV×H) / F≥180, 4.2452≥(θ×H) / F≥3.5, 1.4400≤F / ENPD≤1.5000, -3.2122≤F1 / F≤-1.9629, 2≤R81 / F≤3.0381, -2.7967≤F2 / F≤-1.423, 2.8555≤F3 / F≤9.4331, -1≤F2 / F3≤-0.1, (H-F×θ) / (F×θ) ≤0.1668, 3.0873≤R11 / F≤10.2020, in, F8 is the effective focal length of the eighth lens, F is the total effective focal length of the optical lens, R32 is the radius of curvature of the second side surface of the third lens, R41 is the radius of curvature of the first side surface of the fourth lens, F4 is the effective focal length of the fourth lens, R21 is the radius of curvature of the first side surface of the second lens, R51 is the radius of curvature of the first side surface of the fifth lens, R62 is the radius of curvature of the second side surface of the sixth lens, TTL is the total length of the optical lens, FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view, θ is the maximum field of view of the optical lens expressed in radians, D is the maximum clear aperture of the first lens corresponding to the maximum field of view, ENPD is the entrance pupil diameter of the optical lens, F1 is the effective focal length of the first lens, R81 is the radius of curvature of the first side surface of the eighth lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, and R11 is the radius of curvature of the first side surface of the first lens.

31. An optical lens, characterized in that: The optical system includes, from the first side to the second side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens, wherein: The first lens and the second lens have negative optical power; The third lens, the fourth lens and the eighth lens have positive refractive power; The maximum field of view FOV of the optical lens, the maximum clear aperture D of the first lens corresponding to the maximum field of view, and the image height H corresponding to the maximum field of view satisfy the following conditions: 0.0156≤D / H / FOV≤0.025; The total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: 1.4400≤F / ENPD≤1.

8.

32. The optical lens according to claim 31, wherein: The first side surface of the first lens is convex, and the second side surface is concave.

33. The optical lens according to claim 31, wherein: The first side surface of the second lens is concave, and the second side surface is concave.

34. The optical lens according to claim 31, wherein: The first side surface of the third lens is a convex surface or a concave surface, and the second side surface is a convex surface.

35. The optical lens according to claim 31, wherein: The first side surface of the fourth lens is a convex surface, and the second side surface is a convex surface or a concave surface.

36. The optical lens according to claim 31, wherein: The fifth lens has positive refractive power, and its first side surface is convex, and its second side surface is convex; and The sixth lens has negative optical power, a first side surface of the sixth lens is concave, and a second side surface of the sixth lens is convex.

37. The optical lens according to claim 31, wherein: The fifth lens has negative optical power, a first side surface of the fifth lens is convex, and a second side surface of the fifth lens is concave; and The sixth lens has positive refractive power, and its first side surface is convex, and its second side surface is convex.

38. The optical lens according to claim 31, wherein: The seventh lens has negative optical power, a first side surface of the seventh lens is concave, and a second side surface of the seventh lens is convex.

39. The optical lens according to claim 31, wherein: The seventh lens has positive refractive power, a first side surface of the seventh lens is convex, and a second side surface is convex or concave.

40. The optical lens according to claim 31, wherein: The first side surface of the eighth lens is a convex surface, and the second side surface is a convex surface or a concave surface.

41. The optical lens according to claim 31, wherein: The fifth lens and the sixth lens form a cemented lens.

42. The optical lens according to any one of claims 31 to 41, characterized in that: The effective focal length F8 of the eighth lens and the total effective focal length F of the optical lens satisfy the following: 0.1≤F8 / F≤7.1779.

43. The optical lens according to any one of claims 31 to 41, characterized in that: A curvature radius R32 of the second side surface of the third lens and a curvature radius R41 of the first side surface of the fourth lens satisfy: -2.2194≤R32 / R41≤-0.

05.

44. The optical lens according to any one of claims 31 to 41, 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: F4 / F≥0.

1.

45. The optical lens according to any one of claims 31 to 41, characterized in that: The curvature radius R21 of the first side surface of the second lens and the total effective focal length F of the optical lens satisfy: -2.4951≤R21 / F≤-0.

1.

46. ​​The optical lens according to any one of claims 31 to 41, characterized in that: A curvature radius R51 of the first side surface of the fifth lens and a curvature radius R62 of the second side surface of the sixth lens satisfy: R51 / R62≤-0.

05.

47. The optical lens according to any one of claims 31 to 41, wherein: The total length TTL of the optical lens and the total effective focal length F of the optical lens satisfy the following conditions: 8.0575≤TTL / F≤12.

48. The optical lens according to any one of claims 31 to 41, wherein: The total length TTL of the optical lens satisfies: TTL / H / FOV≤0.

05.

49. The optical lens according to any one of claims 31 to 41, wherein: The maximum field angle θ of the optical lens expressed in radians satisfies: 1.9114≤TTL / H / θ≤2.

6.

50. The optical lens according to any one of claims 31 to 41, wherein: The maximum field angle θ of the optical lens expressed in radians satisfies: 0.8961≤D / H / θ≤1.

2.

51. The optical lens according to any one of claims 31 to 41, wherein: The total effective focal length F of the optical lens satisfies: 243.2328≥(FOV×H) / F≥150.

52. The optical lens according to any one of claims 31 to 41, wherein: The total effective focal length F of the optical lens and the maximum field angle θ of the optical lens expressed in radians satisfy the following conditions: 4.2452≥(θ×H) / F≥3.

53. The optical lens according to any one of claims 31 to 41, wherein: The total effective focal length F of the optical lens and the entrance pupil diameter ENPD of the optical lens satisfy: 1.4400≤F / ENPD≤1.

6.

54. The optical lens according to any one of claims 31 to 41, wherein: The effective focal length F1 of the first lens and the total effective focal length F of the optical lens satisfy the following: -3.2122≤F1 / F≤-0.

1.

55. The optical lens according to any one of claims 31 to 41, wherein: The curvature radius R81 of the first side surface of the eighth lens and the total effective focal length F of the optical lens satisfy the following relationship: 1.5≤R81 / F≤3.0381.

56. The optical lens according to any one of claims 31-41, 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 following: -2.7967≤F2 / F≤-0.

1.

57. The optical lens according to any one of claims 31 to 41, 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: 0.2≤F3 / F≤9.4331.

58. The optical lens according to any one of claims 31 to 41, wherein: The effective focal length F2 of the second lens and the effective focal length F3 of the third lens satisfy: -5≤F2 / F3≤-0.

02.

59. The optical lens according to any one of claims 31 to 41, wherein: The total effective focal length F of the optical lens and the maximum field angle θ of the optical lens expressed in radians satisfy: (HF×θ) / (F×θ) ≤1.

5.

60. The optical lens according to any one of claims 31 to 41, wherein: The curvature radius R11 of the first side surface of the first lens and the total effective focal length F of the optical lens satisfy the following relationship: 1.5≤R11 / F≤50.

61. The optical lens according to claim 31, wherein: The optical lens satisfies at least one of the following conditions: 2.3173≤F8 / F≤7.1779, -2.2194≤R32 / R41≤-1.0095, F4 / F≥0.5, -2.4951≤R21 / F≤-1.7421, R51 / R62≤-0.1, 8.0575≤TTL / F≤10, 0.0334≤TTL / H / FOV≤0.0380, 1.9114≤TTL / H / θ≤2.1774, 0.0156≤D / H / FOV≤0.0180, 0.8961≤D / H / θ≤1.0301, 243.2328≥(FOV×H) / F≥180, 4.2452≥(θ×H) / F≥3.5, 1.4400≤F / ENPD≤1.5000, -3.2122≤F1 / F≤-1.9629, 2≤R81 / F≤3.0381, -2.7967≤F2 / F≤-1.423, 2.8555≤F3 / F≤9.4331, -1≤F2 / F3≤-0.1, (H-F×θ) / (F×θ) ≤0.1668, 3.0873≤R11 / F≤10.2020, in, F8 is the effective focal length of the eighth lens, F is the total effective focal length of the optical lens, R32 is the radius of curvature of the second side surface of the third lens, R41 is the radius of curvature of the first side surface of the fourth lens, F4 is the effective focal length of the fourth lens, R21 is the radius of curvature of the first side surface of the second lens, R51 is the radius of curvature of the first side surface of the fifth lens, R62 is the radius of curvature of the second side surface of the sixth lens, TTL is the total length of the optical lens, FOV is the maximum field of view of the optical lens, H is the image height corresponding to the maximum field of view, θ is the maximum field of view of the optical lens expressed in radians, D is the maximum clear aperture of the first lens corresponding to the maximum field of view, ENPD is the entrance pupil diameter of the optical lens, F1 is the effective focal length of the first lens, R81 is the radius of curvature of the first side surface of the eighth lens, F2 is the effective focal length of the second lens, F3 is the effective focal length of the third lens, and R11 is the radius of curvature of the first side surface of the first lens.

62. Electronic equipment, characterized in that The optical lens comprises the optical lens according to any one of claims 1 to 61 and an imaging element for converting an optical image formed by the optical lens into an electrical signal.

Images