Optical lens, camera module and terminal device

Abstract

The application discloses an optical lens, a camera module and a terminal device. The optical lens comprises first to sixth lenses arranged in sequence. The first lens has positive refractive power, and the object side surface thereof is a convex surface at the near optical axis. The second lens has negative refractive power, and the image side surface thereof is a concave surface at the near optical axis. The third lens has positive refractive power, and the object side surface and the image side surface thereof are both convex surfaces at the near optical axis. The fourth lens has negative refractive power, and the object side surface and the image side surface thereof are a convex surface and a concave surface respectively. The fifth lens has positive refractive power, and the object side surface and the image side surface thereof are both convex surfaces. The sixth lens has negative refractive power, and the object side surface and the image side surface thereof are both concave surfaces. The optical lens satisfies the relationship 1.3 < TTL / F < 1.5 and 1.4 < FNO < 1.6. The optical lens, the camera module and the terminal device can realize miniaturization design and have the characteristics of a large target surface, a large aperture and high pixels.

Description

Technical Field

[0001] This application relates to the field of optical imaging technology, and in particular to an optical lens, camera module and terminal device. Background Technology

[0002] In recent years, with the continuous development of electronic devices, taking mobile phones as an example, users have increasingly higher requirements for the camera on mobile phones, and the image quality of mobile phone cameras has become an increasingly important factor in mobile phone selection.

[0003] However, as mobile phones gradually become thinner and lighter, mobile phone cameras are limited by their size and cannot simultaneously achieve a small size while also having a large aperture, large pixel count, and high resolution. Summary of the Invention

[0004] This application discloses an optical lens, a camera module, and a terminal device, which can achieve miniaturization of the optical lens while giving it the characteristics of a large target area, a large aperture, and high pixel count.

[0005] To achieve the above objectives, in a first aspect, this application discloses an optical lens comprising six lenses with refractive power, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially along the optical axis from the object side to the image side;

[0006] The first lens has positive refractive power, and the object side of the first lens is convex near the optical axis;

[0007] The second lens has negative refractive power, and the image-side surface of the second lens is concave near the optical axis;

[0008] The third lens has positive refractive power, and both the object-side and image-side surfaces of the third lens are convex near the optical axis.

[0009] The fourth lens has negative refractive power, the object side of the fourth lens is convex near the optical axis, and the image side of the fourth lens is concave near the optical axis.

[0010] The fifth lens has positive refractive power, and both the object side and the image side of the fifth lens are convex near the optical axis.

[0011] The sixth lens has negative refractive power, and both the object-side and image-side surfaces of the sixth lens are concave near the optical axis.

[0012] The optical lens satisfies the following relationship:

[0013] 1.3 <TTL / F<1.5、1.4<FNO<1.6;

[0014] Where, TTL is the distance from the object side of the first lens to the imaging surface of the optical lens on the optical axis (i.e., the total length of the optical lens), F is the focal length of the optical lens, and FNO is the f-number of the optical lens.

[0015] In the optical lens provided in this application, the first lens is designed to have a positive refractive power, and with its object side being convex near the optical axis, it can couple light into the optical lens to a greater extent, thereby improving the relative illumination of the marginal field of view. The second lens is designed to have a negative refractive power and its image side is concave near the optical axis, and in cooperation with the first lens, it further slows down the light entering the optical lens and at the same time makes the light move towards the image plane, ensuring a good transition for the light coming out of the first lens and the light entering the third lens, so as to reduce the sensitivity of the optical lens and improve the assembly yield of the optical lens. The third lens is designed to have a positive refractive power, and with its object side and image side both being convex near the optical axis, in combination with the second lens having a negative refractive power, it makes the light move towards the image plane, thereby reducing the chromatic aberration of the optical lens and improving the performance of the optical lens. The fourth lens is designed to have a negative refractive power, and with its object side and image side being convex and concave respectively near the optical axis, it can avoid excessive divergence of light and balance the aberration, thereby improving the imaging quality of the optical lens. The fifth lens and the sixth lens are respectively designed to have positive and negative refractive powers, the object side and image side of the fifth lens are both convex near the optical axis, and in cooperation with the object side and image side of the sixth lens both being concave near the optical axis, it can increase the image height while satisfying that the chief ray angle of the incident detector is greater than 20 degrees, avoiding color cast caused by excessive chief ray angles between the detector and the optical lens, and thus being more conducive to improving the imaging quality of the optical lens.

[0016] The optical lens satisfies the relationship 1.3 < TTL / F < 1.5, which can enable the optical lens to have an appropriate focal length while meeting the requirements of miniaturization design, making the optical lens have the characteristics of wide-angle and large target surface. When the optical lens exceeds the upper limit of the above relationship, the total length of the optical lens is too long, which is not conducive to the miniaturization design of the optical lens; when the optical lens is lower than the lower limit of the above relationship, the focal length of the optical lens is too long, and the captured breadth is smaller, which is not conducive to the wide-angle and large target surface of the optical lens.

[0017] The optical lens satisfies the relationship 1.4 < FNO < 1.6. When the f-number satisfies this relationship, the optical lens has the characteristic of a large aperture, and the optical lens has sufficient light input, which can make the image captured by the optical lens clearer.

[0018] As an optional implementation manner, in the embodiment of the first aspect of this application, the optical lens satisfies the following relationship:

[0019] 40deg < FOV / FNO < 45deg, and / or, 1.7 < IMGH / SD1 < 1.9, and / or, 1.7 < ∑CT / ∑AT < 1.9;

[0020] Where, FOV is the maximum field angle of the optical lens, IMGH is half of the image height corresponding to the maximum field angle of the optical lens, SD1 is half of the maximum effective aperture of the object side of the first lens, ∑CT is the sum of the thicknesses of all lenses on the optical axis from the first lens to the sixth lens, and ∑AT is the sum of the air gaps between adjacent two lenses from the first lens to the sixth lens.

[0021] The optical lens satisfies the relation 40deg < FOV / FNO < 45deg. Satisfying this relation can provide a reasonable field angle and aperture number for the optical lens, providing a combined effect of wide angle and large aperture, which can meet low-temperature or high-temperature environments, keep the image clear, and is more conducive to improving the imaging quality.

[0022] The optical lens satisfies the relation 1.7 < IMGH / SD1 < 1.9. By controlling the ratio of the half image height of the optical lens to the half aperture of the object side of the first lens within a reasonable range, the half image height of the optical lens and the half aperture of the first lens can be effectively controlled, allowing more light to enter the lens, thereby increasing the light transmission and sensitivity of the lens, and being conducive to improving the imaging quality of the optical lens.

[0023] The optical lens satisfies the relation 1.7 < ∑CT / ∑AT < 1.9. Satisfying this relation can make the overall structure of the optical lens more compact, conducive to shortening the total length of the optical lens, and thus achieving miniaturization of the optical lens. When the optical lens exceeds the upper limit of the above relation, the sum of the thicknesses of all lenses is too large, resulting in an overly large volume of the optical lens, which is not conducive to miniaturization of the optical lens; when the optical lens is below the lower limit of the above relation, the sum of the air gaps in all lenses is too large, making the distance between adjacent two lenses too far, not conducive to a compact layout, and easily causing an increase in field curvature, which is not conducive to improving the imaging quality of the optical lens.

[0024] As an optional implementation manner, in the embodiment of the first aspect of the present application, the optical lens satisfies the following relations:

[0025] 1 < F1 / F < 2, and / or, -2 < F2 / F < -0.8, and / or, 2.5 < F3 / CT3 < 5.5, and / or, -15 < F6 / CT6 < -5;

[0026] Where, F1 is the focal length of the first lens, F2 is the focal length of the second lens, F3 is the focal length of the third lens, CT3 is the thickness of the third lens on the optical axis, F6 is the focal length of the sixth lens, and CT6 is the thickness of the sixth lens on the optical axis.

[0027] The optical lens satisfies the relational expression 1 < F1 / F < 2, so that the focal length of the first lens and the focal length of the optical lens are reasonably configured, preventing the refractive power of the first lens from being too strong, avoiding introducing excessive spherical aberration, and enabling the optical lens to have higher imaging quality.

[0028] The optical lens satisfies the relational expression -2 < F2 / F < -0.8, so that the ratio of the focal length of the second lens to the focal length of the optical lens is reasonably configured, and it can also cooperate with the first lens to correct spherical aberration, enabling the optical lens to have good imaging quality.

[0029] The optical lens satisfies the relational expression 2.5 < F3 / CT3 < 5.5, where F3 is the focal length of the third lens and CT3 is the thickness of the third lens on the optical axis. Within this range, the refractive power of the third lens can be reasonably configured, and when paired with the second lens having negative refractive power, the deflection angle of light rays in the optical lens can be effectively controlled, thereby reducing the sensitivity of the optical lens and improving the resolution of the optical lens.

[0030] The optical lens satisfies the relational expression -15 < F6 / CT6 < -5. Satisfying this relational expression enables the optical lens to have a better ability to balance aberrations, and at the same time, the deflection angle of the chief ray can be reasonably controlled, which is beneficial to adjusting the structure of the optical lens.

[0031] As an optional implementation manner, in the embodiment of the first aspect of the present application, the optical lens satisfies the following relational expressions:

[0032] -25 < R9 / R10 < -2, and / or, R11 / R12 > -10;

[0033] Where, R9 is the curvature radius of the object side surface of the fifth lens on the optical axis, R10 is the curvature radius of the image side surface of the fifth lens on the optical axis, R11 is the curvature radius of the object side surface of the sixth lens on the optical axis, and R12 is the curvature radius of the image side surface of the sixth lens on the optical axis.

[0034] The optical lens satisfies the relational expression -25 < R9 / R10 < -2, where R9 is the curvature radius of the object side surface of the fifth lens on the optical axis and R10 is the curvature radius of the image side surface of the fifth lens on the optical axis, so that the surface type difference of the fifth lens is reasonably set, which is beneficial to controlling the shape of the lens, correcting the aberration generated by itself, and improving the imaging quality.

[0035] The optical lens satisfies the relation R11 / R12 > -10, which enables a reasonable configuration of the object side and the image side of the sixth lens, avoids introducing axial chromatic aberration, and thus is conducive to improving the imaging quality of the optical lens.

[0036] As an optional implementation manner, in the embodiment of the first aspect of the present application, the optical lens satisfies the following relations:

[0037] 1.3 < CT1 / ET1 < 1.7, and / or, 9mm < TTL*SD1 / R1 < 12mm, and / or, 1 < SD1 / SD3 < 1.1;

[0038] Where, CT1 is the thickness of the first lens on the optical axis, ET1 is the distance in the optical axis direction from the maximum effective aperture of the object side of the first lens to the maximum effective aperture of the image side of the first lens (i.e., the edge thickness of the first lens), SD1 is half of the maximum effective aperture of the object side of the first lens, R1 is the curvature radius of the object side of the first lens on the optical axis, and SD3 is half of the maximum effective aperture of the object side of the second lens.

[0039] The optical lens satisfies the relation 1.3 < CT1 / ET1 < 1.7. By reasonably controlling the relationship between the central thickness and the edge thickness of the first lens, the surface shape of the first lens can be optimized, which is conducive to the convergence of large-angle incident light, and the difference between the central thickness and the edge thickness of the first lens is small, which is more conducive to the processing and assembly of the first lens.

[0040] The optical lens satisfies the relation 9mm < TTL*SD1 / R1 < 12mm. On the premise of ensuring the performance of the optical lens, the volume of the optical lens can be effectively controlled, so that the total length of the entire optical lens is less than 25mm, realizing a miniaturized design.

[0041] The optical lens satisfies the relation 1 < SD1 / SD3 < 1.1. By controlling the ratio of the maximum effective semi-aperture of the object side of the first lens and the maximum effective semi-aperture of the object side of the second lens, the first lens and the second lens have approximately matching apertures, so that the structural transition between the two is smooth, and light can pass through the first lens and the second lens smoothly without generating a large step difference, which is conducive to improving the imaging quality of the optical lens.

[0042] As an optional implementation manner, in the embodiment of the first aspect of the present application, the optical lens satisfies the following relations:

[0043] 0mm < (R4 + R5 + R6 + R7) / (VD3 - VD2) < 1mm, and / or, |(R5 + R6) / CT3| < 3, and / or, 2 < CT3 / ET3 < 3;

[0044] Wherein, R4 is the curvature radius of the image side of the second lens on the optical axis, R5 is the curvature radius of the object side of the third lens on the optical axis, R6 is the curvature radius of the image side of the third lens on the optical axis, R7 is the curvature radius of the object side of the fourth lens on the optical axis, VD2 is the Abbe number of the second lens, VD3 is the Abbe number of the third lens, CT3 is the thickness of the third lens on the optical axis, and ET3 is the distance in the optical axis direction from the maximum effective aperture of the object side of the third lens to the maximum effective aperture of the image side of the third lens (i.e., the edge thickness of the third lens).

[0045] The optical lens satisfies the relationship 0mm < (R4 + R5 + R6 + R7) / (VD3 - VD2) < 1mm, which can effectively control the chromatic aberration of the optical lens, reduce the risk of color cast of the optical lens, and at the same time effectively improve the imaging quality of the optical lens.

[0046] The optical lens satisfies the relationship |(R5 + R6) / CT3| < 3. By controlling the above relationship between the curvature radii of the object side and the image side of the third lens on the optical axis and the central thickness of the third lens, not only can the field curvature of the high and low temperature marginal fields be reduced, but also the sensitivity of the optical lens can be effectively reduced and the assembly yield can be improved.

[0047] The optical lens satisfies the relationship 2 < CT3 / ET3 < 3. By controlling the relationship between the central thickness and the edge thickness of the third lens, the third lens has a suitable thickness ratio, the surface shape of the third lens is optimized, the light rays are smoothly transitioned, and the chromatic aberration is reduced.

[0048] As an optional implementation manner, in the embodiment of the first aspect of the present application, the optical lens satisfies the following relationship:[[]]END]]

[0049] -3 < SD12 / (SAG11 + SAG12) < -1, and / or, (R10 + R11 + R12) / SAG9 > 8, and / or, 3 < SAG11 / SAG12 < 8

[0050] Where, SD12 is half of the maximum effective aperture of the image side of the sixth lens, SAG11 is the distance from the intersection of the object side of the sixth lens and the optical axis to the position on the optical axis of the maximum effective aperture of the object side of the sixth lens (i.e., the sag height at the maximum effective aperture of the object side of the sixth lens), SAG12 is the distance from the intersection of the image side of the sixth lens and the optical axis to the position on the optical axis of the maximum effective aperture of the image side of the sixth lens (i.e., the sag height at the maximum effective aperture of the image side of the sixth lens), R10 is the curvature radius of the image side of the fifth lens at the optical axis, R11 is the curvature radius of the object side of the sixth lens at the optical axis, R12 is the curvature radius of the image side of the sixth lens at the optical axis, and SAG9 is the distance from the intersection of the object side of the fifth lens and the optical axis to the position on the optical axis of the maximum effective aperture of the object side of the fifth lens (i.e., the sag height at the maximum effective aperture of the object side of the fifth lens).

[0051] The optical lens satisfies the relationship -3 < SD12 / (SAG11 + SAG12) < -1, which can effectively ensure the processability of the sixth lens. Whether the material of the sixth lens is glass or plastic, it is beneficial to ensure that the sixth lens has a high processing yield.

[0052] The optical lens satisfies the relationship (R10 + R11 + R12) / SAG9 > 8, which can adjust the angle of the chief ray of the optical lens incident on the detector to be greater than 20 degrees, ensure a good match between the chief ray angle of the optical lens and the chief ray angle of the detector, and prevent or reduce the risk of color cast of the optical lens.

[0053] The optical lens satisfies the relationship 3 < SAG11 / SAG12 < 8. By controlling the ratio of the sag heights of the object side and the image side of the sixth lens within a reasonable range, the shape of the sixth lens can be better controlled, which is more conducive to the forming and processing of the sixth lens.

[0054] As an optional implementation manner, in the embodiment of the first aspect of the present application, the optical lens satisfies the following relationship:

[0055] 2.5 < CT45 / CT4 < 3.5, and / or, 3 < TTL / (CT4 + CT5 + CT6) < 5, and / or, 2 < |F / (F1 + F2 + F3 + F4 + F5)| < 6;

[0056] Wherein, CT45 is the distance on the optical axis from the image side of the fourth lens to the object side of the fifth lens, CT4 is the thickness of the fourth lens on the optical axis, CT5 is the thickness of the fifth lens on the optical axis, CT6 is the thickness of the sixth lens on the optical axis, F1 is the focal length of the first lens, F2 is the focal length of the second lens, F3 is the focal length of the third lens, F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, and F6 is the focal length of the sixth lens.

[0057] The optical lens satisfies the relational expression 2.5 < CT45 / CT4 < 3.5. By controlling the ratio of the air gap between the fourth lens and the fifth lens and the central thickness of the fourth lens within a reasonable range, it is possible to facilitate the miniaturized design of the optical lens while reducing the risk of increased field curvature, thereby facilitating clearer imaging of the optical lens. When the optical lens exceeds the upper limit of the above relational expression, the air gap between the fourth lens and the fifth lens is too large, which not only has the risk of increasing field curvature but also increases the distance between the fourth lens and the fifth lens, making it unfavorable for the compact layout between the lenses; when the optical lens is below the lower limit of the above relational expression, the thickness of the fourth lens on the optical axis is too large, which is also unfavorable for the miniaturized design of the optical lens.

[0058] The optical lens satisfies the relational expression 3 < TTL / (CT4 + CT5 + CT6) < 5, which can effectively control the relationship between the total length of the optical lens and the image height and ensure that the thickness tolerance of the optical lens has a low sensitivity, improving the assembly yield of the optical lens.

[0059] The optical lens satisfies the relational expression 2 < |F / (F1 + F2 + F3 + F4 + F5)| < 6. By controlling the relational expression between the focal length of the optical lens and the sum of the focal lengths of the first lens to the fifth lens within a reasonable range, the depth of field of the optical lens can be effectively controlled. Not only can it ensure clear imaging when the object distance is greater than 10 m, but it can also ensure clear imaging when the object distance is less than 1 m.

[0060] In a second aspect, the present application also discloses an imaging module, which includes an image sensor and an optical lens as described in the first aspect above, and the image sensor is disposed on the image side of the optical lens.

[0061] In a third aspect, the present application also discloses a terminal device, which includes a housing and an imaging module as described in the second aspect above, and the imaging module is disposed in the housing.

[0062] Compared with the prior art, the beneficial effects of the present application are as follows:

[0063] In the optical lens provided by this application, the first lens is designed to have a positive refractive power, and with its object side being convex near the optical axis, it can couple light into the optical lens to a greater extent, thereby improving the relative illuminance of the peripheral field of view. The second lens is designed to have a negative refractive power and its image side is concave near the optical axis. In combination with the first lens, it further slows down the entry of light into the optical lens, while causing the light to move towards the image plane, ensuring a better transition for the light emerging from the first lens and the light entering the third lens, so as to reduce the sensitivity of the optical lens and improve the assembly yield of the optical lens. The third lens is designed to have a positive refractive power, and with its object side and image side both being convex near the optical axis. In combination with the second lens having a negative refractive power, it causes the light to move towards the image plane, thereby reducing the chromatic aberration of the optical lens and improving the performance of the optical lens. The fourth lens is designed to have a negative refractive power, and with its object side and image side being convex and concave respectively near the optical axis, it can prevent the light from diverging too much and balance the aberration, thereby improving the imaging quality of the optical lens. The fifth lens and the sixth lens are respectively designed to have positive and negative refractive powers. The object side and image side of the fifth lens are both convex near the optical axis. In combination with the object side and image side of the sixth lens both being concave near the optical axis, it can increase the image height while satisfying that the chief ray angle incident on the detector is greater than 20 degrees, avoiding color cast caused by the excessive chief ray angle between the detector and the optical lens, and thus being more conducive to improving the imaging quality of the optical lens.

[0064] The optical lens satisfies the relationship 1.3 < TTL / F < 1.5, which enables the optical lens to have an appropriate focal length while meeting the requirements of miniaturized design, endowing the optical lens with the characteristics of wide-angle and large target surface. When the optical lens exceeds the upper limit of the above relationship, the total length of the optical lens is too long, which is not conducive to the miniaturized design of the optical lens; when the optical lens is lower than the lower limit of the above relationship, the focal length of the optical lens is too long and the shooting breadth is smaller, which is not conducive to the wide-angle and large target surface of the optical lens.

[0065] The optical lens satisfies the relationship 1.4 < FNO < 1.6. When the aperture number satisfies this relationship, the optical lens has the characteristic of a large aperture, and the optical lens has sufficient light input, enabling the image captured by the optical lens to be clearer. Brief Description of the Drawings

[0066] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0067] Figure 1This is a schematic diagram of the structure of the optical lens disclosed in Embodiment 1 of this application;

[0068] Figure 2 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens disclosed in Embodiment 1 of this application;

[0069] Figure 3 This is a schematic diagram of the structure of the optical lens disclosed in Embodiment 2 of this application;

[0070] Figure 4 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens disclosed in Embodiment 2 of this application;

[0071] Figure 5 This is a schematic diagram of the structure of the optical lens disclosed in Embodiment 3 of this application;

[0072] Figure 6 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens disclosed in Embodiment 3 of this application;

[0073] Figure 7 This is a schematic diagram of the structure of the optical lens disclosed in Embodiment 4 of this application;

[0074] Figure 8 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens disclosed in Embodiment 4 of this application;

[0075] Figure 9 This is a schematic diagram of the structure of the optical lens disclosed in Embodiment 5 of this application;

[0076] Figure 10 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens disclosed in Embodiment 5 of this application;

[0077] Figure 11 This is a schematic diagram of the camera module disclosed in this application;

[0078] Figure 12 This is a structural diagram of the terminal device disclosed in this application when it is a mobile phone. Detailed Implementation

[0079] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0080] In this application, the terms "upper," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0081] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0082] Furthermore, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0083] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0084] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0085] Please see Figure 1 This application discloses an optical lens 100, which includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6 arranged sequentially along the optical axis from the object side to the image side. The first lens L1 has positive refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has negative refractive power, the fifth lens L5 has positive refractive power, and the sixth lens L6 has negative refractive power. During imaging, light rays enter sequentially from the object side of the first lens L1 through the first lens L1, second lens L2, third lens L3, fourth lens L4, fifth lens L5, and sixth lens L6, and are ultimately imaged onto the imaging plane 101 of the optical lens 100.

[0086] Furthermore, the object-side surface 1 of the first lens L1 is convex near the optical axis, and the image-side surface 2 of the first lens L1 is either convex or concave near the optical axis; the object-side surface 3 of the second lens L2 is either convex or concave near the optical axis, and the image-side surface 4 of the second lens L2 is concave near the optical axis; the object-side surface 5 of the third lens L3 is convex near the optical axis, and the image-side surface 6 of the third lens L3 is convex near the optical axis; the object-side surface 7 of the fourth lens L4 is convex near the optical axis, and the image-side surface 8 of the fourth lens L4 is concave near the optical axis; the object-side surface 9 of the fifth lens L5 is convex near the optical axis, and the image-side surface 10 of the fifth lens L5 is convex near the optical axis; the object-side surface 11 of the sixth lens L6 is concave near the optical axis, and the image-side surface 12 of the sixth lens L6 is concave near the optical axis.

[0087] In the optical lens 100 provided in this application, the first lens L1 is configured to have positive refractive power, and its object side is designed to be convex near the optical axis, which can couple light into the optical lens 100 to a greater extent, thereby improving the relative illumination of the edge field of view.

[0088] The second lens L2 is designed to have negative refractive power and a concave image side near the optical axis. Together with the first lens L1, it further reduces the amount of light entering the optical lens 100 and moves the light towards the image plane. This ensures a better transition between the light coming out of the first lens L1 and the light entering the third lens L3, thereby reducing the sensitivity of the optical lens 100 and improving the assembly yield of the optical lens 100.

[0089] The third lens L3 is designed to have positive refractive power, and its object side and image side are both convex near the optical axis. When combined with the second lens L2, which has negative refractive power, light is moved toward the image plane, thereby reducing chromatic aberration of the optical lens 100 and improving the performance of the optical lens 100.

[0090] By setting the fourth lens L4 to have negative refractive power, and with its object side and image side being convex and concave near the optical axis respectively, excessive light divergence can be avoided, aberrations can be balanced, and the imaging quality of the optical lens 100 can be improved.

[0091] The fifth lens L5 and the sixth lens L6 are respectively configured to have positive and negative refractive forces. The object-side and image-side surfaces of the fifth lens L5 are convex near the optical axis, while the object-side and image-side surfaces of the sixth lens L6 are concave near the optical axis. This can increase the image height while ensuring that the principal ray angle of the incident detector is greater than 20 degrees. This avoids color distortion caused by the detector and optical lens 100 due to the excessive principal ray angle, thus improving the imaging quality of the optical lens 100.

[0092] Optionally, all lenses in the optical lens 100 can be made of glass, or all can be made of plastic, or some lenses can be made of glass and some of them of plastic. In one example, all lenses in the optical lens 100 are made of glass. Lenses made of glass can suppress the shift in the back focus of the optical lens 100 caused by temperature changes, thereby improving the stability of the optical lens 100. At the same time, lenses made of glass are less sensitive to temperature, which can avoid image blurring caused by high and low temperature changes in the operating environment, thus enabling the optical lens 100 to have better optical performance. Of course, in another example, the lenses in the optical lens 100 can be made of some plastic and some glass. This configuration combines the advantages of plastic lenses and glass lenses, so that the optical lens 100 can have good optical performance, reduce the temperature sensitivity of the optical lens 100, reduce the overall weight of the optical lens 100, and reduce the production cost of the optical lens 100.

[0093] Optionally, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6 can all be aspherical lenses. The design of the aspherical structure can improve the design flexibility of the optical lens 100, effectively correct spherical aberration, and improve image quality.

[0094] In some embodiments, the optical lens 100 may further include an aperture stop 102, which may be an aperture stop and / or a field stop, and may be disposed on the object side 1 of the first lens L1 of the optical lens 100. Of course, in other embodiments, the aperture stop 102 may also be disposed between other lenses, and the setting may be adjusted according to the actual situation. This embodiment does not make specific limitations.

[0095] In some embodiments, the optical lens 100 may further include a red light filter 110, which may be disposed between the image-side surface 12 of the sixth lens L6 and the imaging surface 101 of the optical lens 100. Of course, in other embodiments, the filter 110 may also be disposed between other lenses, and the setting may be adjusted according to the actual situation. This embodiment does not impose specific limitations.

[0096] Among them, the red light filter 110 can be an infrared cut-off filter, so as to filter out light in other bands such as infrared light, and only allow visible light to pass through, making the imaging more in line with the visual experience of the human eye. Of course, the filter 110 can also be an infrared band-pass filter, so as to filter out light in other bands such as visible light, and only allow infrared light to pass through. By filtering out light in other bands such as visible light, the imaging quality is improved, so that the optical lens 100 can also image and obtain better imaging effects in a dim environment and other special application scenarios. Preferably, the infrared filter 110 can be made of glass. Of course, in other embodiments, the infrared filter 110 can also be made of optical glass coating or other materials, and the specific material can be selected according to actual needs, and is not specifically limited in this embodiment.

[0097] In some embodiments, the optical lens 100 satisfies the relational expression 1.3 < TTL / F < 1.5, where TTL is the distance from the object side surface 1 of the first lens L1 to the imaging surface 101 of the optical lens 100 on the optical axis, and F is the focal length of the optical lens 100. When the optical lens 100 satisfies the above relational expression, it can make the optical lens 100 have an appropriate focal length while meeting the requirements of miniaturization design, so that the optical lens 100 has the characteristics of wide-angle and large target surface. When the optical lens 100 exceeds the upper limit of the above relational expression, the total length of the optical lens 100 is too long, which is not conducive to the miniaturization design of the optical lens 100; when the optical lens 100 is lower than the lower limit of the above relational expression, the focal length of the optical lens 100 is too long, and the shooting breadth is smaller, which is not conducive to the wide-angle and large target surface of the optical lens 100. More preferably, the optical lens 100 satisfies the relational expression 1.35 < TTL / F < 1.45, so that the imaging quality of the optical lens 100 is better.

[0098] In some embodiments, the optical lens 100 satisfies the relational expression 1.4 < FNO < 1.6, where FNO is the aperture number of the optical lens 100. When the aperture number satisfies this relational expression, the optical lens 100 has the characteristic of a large aperture, and the optical lens 100 has sufficient light input, which can make the image taken by the optical lens 100 clearer.

[0099] In some embodiments, the optical lens 100 satisfies the relational expression FOV > 60deg, where FOV is the maximum field angle of the optical lens 100, which can provide sufficient field angle for the optical lens 100, has the imaging characteristic of a large field angle, and makes the optical lens 100 have the characteristics of high pixels and high definition. More preferably, the optical lens 100 satisfies the relational expression 60deg < FOV < 65deg, so that the imaging of the optical lens 100 is clearer.

[0100] In some embodiments, the optical lens 100 satisfies the relation 40deg < FOV / FNO < 45deg, where FOV is the maximum field of view angle of the optical lens 100 and FNO is the f-number of the optical lens 100. Satisfying this relation can provide a reasonable field of view angle and f-number for the optical lens 100, providing a combined effect of a wide viewing angle and a large aperture, which can meet low-temperature or high-temperature environments, keep the image clear, and is more conducive to improving the imaging quality.

[0101] In some embodiments, the optical lens  100 satisfies the relation 1.7 < IMGH / SD1 < 1.9, where IMGH is half of the image height corresponding to the maximum field of view angle of the optical lens 100 and SD1 is half of the maximum effective aperture of the object side 1 of the first lens L1. By controlling the ratio of the half image height of the optical lens 100 to the half aperture of the object side 1 of the first lens L1 within a reasonable range, the half image height of the optical lens 100 and the half aperture of the first lens L1 can be effectively controlled, allowing more light to enter the optical lens 100, thereby increasing the light transmission and sensitivity of the optical lens 100, and being conducive to improving the imaging quality of the optical lens 100.

[0102] In some embodiments, the optical lens 100 satisfies the relation 1.7 < ∑CT / ∑AT < 1.9, where ∑CT is the sum of the thicknesses of all the lenses on the optical axis from the first lens L1 to the sixth lens L6, and ∑AT is the sum of the air gaps between adjacent lenses from the first lens L1 to the sixth lens L6. Satisfying this relation can make the overall structure of the optical lens 100 more compact, conducive to shortening the total length of the optical lens 100, thereby achieving miniaturization of the optical lens 100. When the optical lens 100 exceeds the upper limit of the above relation, the sum of the thicknesses of all the lenses is too large, resulting in an excessive volume of the optical lens 100, which is not conducive to miniaturization of the optical lens 100; when the optical lens 100 is below the lower limit of the above relation, the sum of the air gaps in all the lenses is too large, making the distance between adjacent lenses too far, which is not conducive to a compact layout and is likely to cause an increase in field curvature, which is not conducive to improving the imaging quality of the optical lens 100.

[0103] In some embodiments, the optical lens 100 satisfies the relation 1 < F1 / F < 2, where F1 is the focal length of the first lens L1 and F is the focal length of the optical lens 100. Satisfying the above relation enables a reasonable configuration of the focal length of the first lens L1 and the focal length of the optical lens 100, preventing the refractive power of the first lens L1 from being too strong and avoiding introducing excessive spherical aberration, making the optical lens 100 have higher imaging quality. More preferably, the optical lens 100 satisfies the relation 1.3 < F1 / F < 1.8, making the imaging quality of the optical lens 100 even better.

[0104] In some embodiments, the optical lens 100 satisfies the relation -2 < F2 / F < -0.8, where F2 is the focal length of the second lens L2 and F is the focal length of the optical lens 100. Satisfying the above relation enables a reasonable configuration of the ratio of the focal length of the second lens L2 to the focal length of the optical lens 100, and can also cooperate with the first lens L1 to correct spherical aberration, so that the optical lens 100 has good imaging quality.

[0105] In some embodiments, the optical lens 100 satisfies the relation 0.6 < F3 / F < 0.9, where F3 is the focal length of the third lens L3 and F is the focal length of the optical lens 100. Satisfying the above relation can further correct spherical aberration and chromatic aberration, so that the optical lens 100 has good imaging quality.

[0106] In one embodiment, the optical lens 100 satisfies the relation -3.1 < F4 / F < -2.4, where F4 is the focal length of the fourth lens L4 and F is the focal length of the optical lens 100. Satisfying the above relation enables a reasonable configuration of the ratio of the focal length of the fourth lens L4 to the focal length of the optical lens 100, so that the light can be diffused more gently, reducing the pressure on subsequent lenses to correct aberration and improving imaging quality.

[0107] In one embodiment, the optical lens 100 satisfies the relation 1.5 < F5 / F < 1.9, where F5 is the focal length of the fifth lens L5 and F is the focal length of the optical lens 100. Satisfying the above relation enables a reasonable configuration of the ratio of the focal length of the fifth lens L5 to the focal length of the optical lens 100. For the entire optical lens 100, it can avoid the situation where the sixth lens L6 is overloaded and the surface shape is too tortuous, and further enables the optical lens 100 to have good imaging quality.

[0108] In one embodiment, the optical lens 100 satisfies the relation -0.9 < F6 / F < -0.7, where F6 is the focal length of the sixth lens L6 and F is the focal length of the optical lens 100. Satisfying the above relation enables a reasonable configuration of the ratio of the focal length of the sixth lens L6 to the focal length of the optical lens 100, so that the refractive power of the sixth lens L6 is moderate and can cooperate with the fifth lens L5 to correct high-order aberrations, making the optical lens 100 have good imaging quality.

[0109] In one embodiment, the optical lens 100 satisfies the relation 5 < F1 / CT1 < 9, where F1 is the focal length of the first lens L1 and CT1 is the thickness of the first lens L1 on the optical axis. By controlling the ratio between the focal length of the first lens L1 and the thickness of the first lens L1 within a reasonable range, it can help reduce the sensitivity of the optical lens 100.

[0110] In one embodiment, the optical lens 100 satisfies the relation -35 < F2 / CT2 < -14, where F2 is the focal length of the second lens L2, and CT2 is the thickness of the second lens L2 on the optical axis. Satisfying this relation enables the second lens L2 to cooperate with the first lens L1 to slow down the angle of light entering the optical lens 100 and reduce the sensitivity of the optical lens 100.

[0111] In some embodiments, the optical lens 100 satisfies the relation 2.5 < F3 / CT3 < 5.5, where F3 is the focal length of the third lens L3, and CT3 is the thickness of the third lens L3 on the optical axis. Within this range, the refractive power of the third lens L3 can be reasonably configured, and when combined with the second lens L2 having a negative refractive power, the deflection angle of light in the optical lens 100 can be effectively controlled, thereby reducing the sensitivity of the optical lens 100 and improving the resolution of the optical lens 100.

[0112] In one embodiment, the optical lens 100 satisfies the relation -44 < F4 / CT4 < -35, where F4 is the focal length of the fourth lens L4, and CT4 is the thickness of the fourth lens L4 on the optical axis. Satisfying this relation enables the thickness of the fourth lens L4 on the optical axis to be within a reasonable range, which is beneficial to the light weight of the optical lens 100. At the same time, it can reduce distortion, reduce aberration, and improve imaging quality.

[0113] In one embodiment, the optical lens 100 satisfies the relation 9 < F5 / CT5 < 11.5, where F5 is the focal length of the fifth lens L5, and CT5 is the thickness of the fifth lens L5 on the optical axis, enabling the fifth lens L5 to cooperate with the fourth lens L4 to balance high-order aberrations and improve the imaging quality of the optical lens 100.

[0114] In some embodiments, the optical lens 100 satisfies the relation -15 < F6 / CT6 < -5, where F6 is the focal length of the sixth lens L6, and CT6 is the thickness of the sixth lens L6 on the optical axis. Satisfying this relation enables the optical lens 100 to have a good ability to balance aberrations, and at the same time, it can also reasonably control the deflection angle of the chief ray, which is beneficial to adjusting the structure of the optical lens 100.

[0115] In some embodiments, the optical lens 100 satisfies the relation -1.1 < (R1 - R2) / (R1 + R2) < -0.7, where R1 is the radius of curvature of the object side 1 of the first lens L1 on the optical axis, and R2 is the radius of curvature of the image side 2 of the first lens L1 on the optical axis, enabling light to enter and exit the second lens L2 smoothly and reducing the eccentricity sensitivity of the lens.

[0116] In some embodiments, the optical lens 100 satisfies the relational expression 0.2 < (R3 - R4) / (R3 + R4) < 2, where R3 is the curvature radius of the object side 3 of the second lens L2 on the optical axis, and R4 is the curvature radius of the image side 4 of the second lens L2 on the optical axis. Satisfying this relational expression can reasonably set the surface type difference between the object side and the image side of the second lens L2, reasonably control the shape of the second lens L2, make the light passing through the second lens L2 smoothly enter the third lens L3, and is beneficial to reducing the sensitivity of the third lens L3 to eccentricity, thereby effectively correcting aberration.

[0117] In some embodiments, the optical lens 100 satisfies the relational expression -1.5 < R5 / R6 < -0.7, where R5 is the curvature radius of the object side 5 of the third lens L3 on the optical axis, and R6 is the curvature radius of the image side 6 of the third lens L3 on the optical axis. This is beneficial to reducing the sensitivity of the third lens L3 to eccentricity and is conducive to correcting aberration.

[0118] In some embodiments, the optical lens 100 satisfies the relational expression 1.3 < R7 / R85 < 1.4, where R7 is the curvature radius of the object side 7 of the fourth lens L4 on the optical axis, and R8 is the curvature radius of the image side 8 of the fourth lens L4 on the optical axis. By controlling the ratio relationship of the curvature radii of the object side 7 and the image side 8 of the fourth lens L4 on the optical axis, it is beneficial to control the shape of the fourth lens L4, correct the aberration generated by itself, and improve the imaging quality.

[0119] In some embodiments, the optical lens 100 satisfies the relational expression -25 < R9 / R10 < -2, where R9 is the curvature radius of the object side 9 of the fifth lens L5 on the optical axis, and R10 is the curvature radius of the image side 10 of the fifth lens L5 on the optical axis. This makes the surface type difference of the fifth lens L5 reasonably set, is beneficial to controlling the shape of the lens, correcting the aberration generated by itself, and improving the imaging quality.

[0120] In some embodiments, the optical lens 100 satisfies the relational expression R11 / R12 > -10, where R11 is the curvature radius of the object side 11 of the sixth lens L6 on the optical axis, and R12 is the curvature radius of the image side 12 of the sixth lens L6 on the optical axis. This enables the reasonable configuration of the object side and the image side of the sixth lens L6, avoids introducing axial chromatic aberration, and thus is beneficial to improving the imaging quality of the optical lens 100.

[0121] In some embodiments, the optical lens 100 satisfies the relation 1.3 < CT1 / ET1 < 1.7, where CT1 is the thickness of the first lens L1 on the optical axis, and ET1 is the distance in the optical axis direction from the maximum effective aperture of the object side 1 of the first lens L1 to the maximum effective aperture of the image side 2 of the first lens L1 (the edge thickness of the first lens L1). By reasonably controlling the relationship between the central thickness and the edge thickness of the first lens L1, the surface shape of the first lens L1 can be optimized, which is beneficial to the convergence of large-angle incident light, and the difference between the central thickness and the edge thickness of the first lens L1 is small, which is more conducive to the processing and assembly of the first lens L1.

[0122] In some embodiments, the optical lens 100 satisfies the relation 9 mm < TTL*SD1 / R1 < 12 mm, where TTL is the distance on the optical axis from the object side 1 of the first lens L1 to the imaging surface 101 of the optical lens 100 (the total length of the optical lens 100), SD1 is half of the maximum effective aperture of the object side 1 of the first lens L1, and R1 is the radius of curvature of the object side 1 of the first lens L1 on the optical axis. Satisfying the above relation can effectively control the volume of the optical lens 100 while ensuring the performance of the optical lens 100, so that the total length of the entire optical lens 100 is less than 25 mm, realizing a miniaturized design.

[0123] In some embodiments, the optical lens 100 satisfies the relation 1 < SD1 / SD3 < 1.1, where SD1 is half of the maximum effective aperture of the object side 1 of the first lens L1, and SD3 is half of the maximum effective aperture of the object side 3 of the second lens L2. By controlling the ratio of the maximum effective semi-aperture of the object side 1 of the first lens L1 and the maximum effective semi-aperture of the object side 3 of the second lens L2, the first lens L1 and the second lens L2 have approximately matching apertures, so that the structural transition between the two is gentle, and light can pass through the first lens L1 and the second lens L2 smoothly without a large step difference, which is beneficial to improving the imaging quality of the optical lens 100.

[0124] In some embodiments, the optical lens 100 satisfies the relation 0 mm < (R4 + R5 + R6 + R7) / (VD3 - VD2) < 1 mm, where R4 is the curvature radius of the image side 4 of the second lens L2 at the optical axis, R5 is the curvature radius of the object side 5 of the third lens L3 at the optical axis, R6 is the curvature radius of the image side 6 of the third lens L3 at the optical axis, R7 is the curvature radius of the object side 7 of the fourth lens L4 at the optical axis, VD2 is the Abbe number of the second lens L2, and VD3 is the Abbe number of the third lens L3. By satisfying the above relation, the chromatic aberration of the optical lens 100 can be effectively controlled, the risk of color cast of the optical lens 100 can be reduced, and at the same time, the imaging quality of the optical lens 100 can be effectively improved. More preferably, the optical lens 100 satisfies the relation 0.4 mm < (R4 + R5 + R6 + R7) / (VD3 - VD2) < 0.8 mm.

[0125] In some embodiments, the optical lens 100 satisfies the relation |(R5 + R6) / CT3| < 3, where R5 is the curvature radius of the object side 5 of the third lens L3 at the optical axis, R6 is the curvature radius of the image side 6 of the third lens L3 at the optical axis, and CT3 is the thickness of the third lens L3 on the optical axis. By controlling the relationship between the curvature radii of the object side 5 and the image side 6 of the third lens L3 at the optical axis and the central thickness of the third lens L3, not only can the field curvature of the high and low temperature marginal fields be reduced, but also the sensitivity of the optical lens 100 can be effectively reduced, and the assembly yield can be improved.

[0126] In some embodiments, the optical lens 100 satisfies the relation 2 < CT3 / ET3 < 3, where CT3 is the thickness of the third lens L3 on the optical axis, and ET3 is the distance in the optical axis direction from the maximum effective aperture of the object side 5 of the third lens L3 to the maximum effective aperture of the image side 6 of the third lens L3 (the edge thickness of the third lens L3). By controlling the relationship between the central thickness and the edge thickness of the third lens L3, the third lens L3 has a suitable thickness ratio, the surface shape of the third lens L3 is optimized, the light rays are smoothly transitioned, and the chromatic aberration is reduced.

[0127] In some embodiments, the optical lens 100 satisfies the relation -3 < SD12 / (SAG11 + SAG12) < -1, where SD12 is half of the maximum effective aperture of the image side 12 of the sixth lens L6, SAG11 is the distance from the intersection of the object side 11 of the sixth lens L6 and the optical axis to the position on the optical axis where the maximum effective aperture of the object side 11 of the sixth lens L6 is located (the sagitta at the maximum effective aperture of the object side 11 of the sixth lens L6), and SAG12 is the distance from the intersection of the image side 12 of the sixth lens L6 and the optical axis to the position on the optical axis where the maximum effective aperture of the image side 12 of the sixth lens L6 is located (the sagitta at the maximum effective aperture of the image side 12 of the sixth lens L6). Ensuring that the above parameters are within a reasonable range can effectively ensure the processability of the sixth lens L6. Whether the material of the sixth lens L6 is glass or plastic, it is beneficial to ensure that the sixth lens L6 has a high processing yield.

[0128] In some embodiments, the optical lens 100 satisfies the relation (R10 + R11 + R12) / SAG9 > 8, where R10 is the radius of curvature of the image side 10 of the fifth lens L5 at the optical axis, R11 is the radius of curvature of the object side 11 of the sixth lens L6 at the optical axis, R12 is the radius of curvature of the image side 12 of the sixth lens L6 at the optical axis, and SAG9 is the distance from the intersection of the object side 9 of the fifth lens L5 and the optical axis to the position on the optical axis where the maximum effective aperture of the object side 9 of the fifth lens L5 is located (the sagitta at the maximum effective aperture of the object side 9 of the fifth lens L5). By controlling the above parameters within a reasonable range, the angle of the principal ray of the optical lens 100 incident on the detector can be adjusted to be greater than 20 degrees, ensuring a good match between the principal ray angle of the optical lens 100 and the principal ray angle of the detector, and preventing or reducing the risk of color cast of the optical lens 100.

[0129] In some embodiments, the optical lens 100 satisfies the relation 3 < SAG11 / SAG12 < 8, where SAG11 is the distance from the intersection of the object side 11 of the sixth lens L6 and the optical axis to the position on the optical axis where the maximum effective aperture of the object side 11 of the sixth lens L6 is located (the sagitta at the maximum effective aperture of the object side 11 of the sixth lens L6), and SAG12 is the distance from the intersection of the image side 12 of the sixth lens L6 and the optical axis to the position on the optical axis where the maximum effective aperture of the image side 12 of the sixth lens L6 is located (the sagitta at the maximum effective aperture of the image side 12 of the sixth lens L6). By controlling the ratio of the sagittas of the object side 11 and the image side 12 of the sixth lens L6 within a reasonable range, the shape of the sixth lens L6 can be better controlled, which is more beneficial to the forming and processing of the sixth lens L6.

[0130] In some embodiments, the optical lens 100 satisfies the relation 2.5 < CT45 / CT4 < 3.5, where CT45 is the distance on the optical axis from the image side 8 of the fourth lens L4 to the object side 9 of the fifth lens L5 (the air gap between the fourth lens L4 and the fifth lens L5), and CT4 is the thickness of the fourth lens L4 on the optical axis. By controlling the ratio of the air gap between the fourth lens L4 and the fifth lens L5 to the center thickness of the fourth lens L4 within a reasonable range, it is possible to facilitate the miniaturized design of the optical lens 100 while reducing the risk of increased field curvature, thereby facilitating clearer imaging of the optical lens 100. When the optical lens 100 exceeds the upper limit of the above relation, the air gap between the fourth lens L4 and the fifth lens L5 is too large, which not only has the risk of increasing field curvature but also increases the distance between the fourth lens L4 and the fifth lens L5, making it unfavorable for the compact layout between the lenses; when the optical lens 100 is below the lower limit of the above relation, the thickness of the fourth lens L4 on the optical axis is too large, which is also unfavorable for the miniaturized design of the optical lens 100.

[0131] In some embodiments, the optical lens 100 satisfies the relation 3 < TTL / (CT4 + CT5 + CT6) < 5, where TTL is the distance on the optical axis from the object side 1 of the first lens L1 to the imaging surface 101 of the optical lens 100 (the total length of the optical lens 100), CT4 is the thickness of the fourth lens L4 on the optical axis, CT5 is the thickness of the fifth lens L5 on the optical axis, and CT6 is the thickness of the sixth lens L6 on the optical axis. Satisfying the above relation can effectively control the relationship between the total length of the optical lens 100 and the image height, and ensure that the thickness tolerance of the optical lens 100 has a low sensitivity, improving the assembly yield of the optical lens 100.

[0132] In some embodiments, the optical lens 100 satisfies the relation 2 < |F / (F1 + F2 + F3 + F4 + F5)| < 6, where F is the focal length of the optical lens 100, F1 is the focal length of the first lens L1, F2 is the focal length of the second lens L2, F3 is the focal length of the third lens L3, F4 is the focal length of the fourth lens L4, F5 is the focal length of the fifth lens L5, and F6 is the focal length of the sixth lens L6. By controlling the relation between the focal length of the optical lens 100 and the sum of the focal lengths of the first lens L1 to the fifth lens L5 within a reasonable range, the depth of field of the optical lens 100 can be effectively controlled, which can not only ensure clear imaging of the optical lens 100 when the object distance is greater than 10 m but also ensure clear imaging when the object distance is less than 1 m.

[0133] The optical lens 100 of this embodiment will be described in detail below with specific parameters.

[0134] Embodiment 1

[0135] Figure 1 This is a schematic diagram of the structure of the optical lens 100 disclosed in Embodiment 1 of this application. The optical lens 100 includes an aperture stop 102, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, an infrared filter 110, and an imaging surface 101, which are arranged sequentially from the object side to the image side along the optical axis. Among them, the object-side surface 1 of the first lens L1 is convex near the optical axis, and the image-side surface 2 of the first lens L1 is concave near the optical axis; the object-side surface 3 of the second lens L2 is convex near the optical axis, and the image-side surface 4 of the second lens L2 is concave near the optical axis; the object-side surface 5 of the third lens L3 is convex near the optical axis, and the image-side surface 6 of the third lens L3 is convex near the optical axis; the object-side surface 7 of the fourth lens L4 is convex near the optical axis, and the image-side surface 8 of the fourth lens L4 is concave near the optical axis; the object-side surface 9 of the fifth lens L5 is convex near the optical axis, and the image-side surface 10 of the fifth lens L5 is convex near the optical axis; the object-side surface 11 of the sixth lens L6 is concave near the optical axis, and the image-side surface 12 of the sixth lens L6 is concave near the optical axis.

[0136] Specifically, taking the optical lens 100 with a focal length F = 17.43 mm, an aperture number FNO = 1.55, and a maximum field of view (FOV) of 62.38 degrees as an example, other parameters of the optical lens 100 are given in Table 1 below. The elements along the optical axis of the optical lens 100 from the object side to the image side are arranged sequentially according to the order of the elements in Table 1 from top to bottom. In the same lens, the surface with the smaller surface number is the object side of the lens, and the surface with the larger surface number is the image side of the lens. For example, surface numbers 1 and 2 correspond to the object side 1 and image side 2 of the first lens L1, respectively. The Y-radius in Table 1 is the radius of curvature of the corresponding object side or image side at the optical axis. The first value in the "thickness" parameter column of the lens is the thickness of the lens on the optical axis, and the second value is the distance from the image side of the lens to the next surface on the optical axis. The value of the aperture stop 102 in the "Thickness" parameter column represents the distance on the optical axis from the aperture stop 102 to the vertex of the next surface (the vertex refers to the intersection of the surface and the optical axis). By default, the direction from the object side of the first lens L1 to the image side of the last lens is the positive direction of the optical axis. When this value is negative, it indicates that the aperture stop 102 is set on the image side of the vertex of the next surface. If the thickness of the aperture stop 102 is positive, the aperture stop 102 is on the object side of the vertex of the next surface. It can be understood that the units of Y radius, thickness, and focal length in Table 1 are all mm. And the refractive index, Abbe number, and focal length in Table 1 are obtained at a reference wavelength of 555 nm.

[0137] Table 1

[0138]

[0139] In Example 1, the object-side surface and image-side surface of the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6 are all aspherical. Therefore, the surface shape x of each aspherical lens can be defined using, but is not limited to, the following aspherical formula:

[0140]

[0141] Where x is the distance vector from the vertex of the aspherical surface at a height h along the optical axis; c is the curvature of the aspherical surface at the optical axis, c = 1 / Y (i.e., the paraxial curvature c is the reciprocal of the radius of curvature Y in Table 1 above); K is the conic coefficient; Ai is the i-th order correction coefficient of the aspherical surface. Table 2 below gives the higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 of the aspherical surfaces of the second lens L2, the fourth lens L4, the fifth lens L5, and the sixth lens L6.

[0142] Table 2

[0143]

[0144] Figure 2 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens 100 disclosed in Embodiment 1 of this application. Figure 2 Figure (A) shows the spherical aberration diagram of optical lens 100 at wavelengths of 650nm, 610nm, 555nm, 510nm, 470nm, 435nm, and 410nm. The x-axis represents the focus shift in mm, and the y-axis represents the normalized field of view. Figure 2 As can be seen from (A) in Example 1, the spherical aberration value of the optical lens 100 is better, indicating that the imaging quality of the optical lens 100 in this example is better.

[0145] Figure 2 (B) in the figure shows the astigmatism of the optical lens 100 in Example 1 at a wavelength of 555 nm. The horizontal axis along the X-axis represents the focus shift in mm, and the vertical axis along the Y-axis represents the image height in mm. In the astigmatism diagram, T represents the curvature of the imaging surface 101 in the meridional direction, and S represents the curvature of the imaging surface 101 in the sagittal direction. Figure 2 As can be seen from (B) in the figure, at this wavelength, the field curvature of the optical lens 100 is small, and the field curvature and astigmatism of each field of view are well corrected. The center and edge of the field of view have clear imaging, that is, the astigmatism of the optical lens 100 is well compensated.

[0146] Figure 2(C) in the figure represents the distortion diagram of the optical lens 100 in Example 1 at a wavelength of 555 nm. The horizontal axis along the X-axis represents distortion, and the vertical axis along the Y-axis represents image height, in mm. Figure 2 As can be seen from (C), at this wavelength, the image distortion caused by the main beam is small, and the distortion of the optical lens 100 is well corrected.

[0147] Example 2

[0148] Figure 3 This is a schematic diagram of the optical lens 100 disclosed in Embodiment 2 of this application. Taking the focal length F = 17.40 mm, the aperture number FNO = 1.43, and the maximum field of view FOV = 62.38 degrees of the optical lens 100 as examples, other parameters of the optical lens 100 are given in Table 3 below. The definitions of each parameter can be derived from the description of the foregoing embodiments, and will not be repeated here. The refractive index, Abbe number, focal length, etc. in Table 3 are all obtained at a reference wavelength of 555 nm. In addition, regarding the refractive power of each lens and the correspondence between the number of each surface and the object side and image side of each lens, please refer to Embodiment 1 above, and will not be repeated here.

[0149] Table 3

[0150]

[0151] Table 4 provides the higher-order coefficients of each aspherical mirror surface that can be used in Example 2 for the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6. The shape of each aspherical surface can be defined by the formula given in Example 1.

[0152] Table 4

[0153]

[0154] Figure 4 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens 100 disclosed in Embodiment 2 of this application. Figure 4 Figure (A) shows the spherical aberration diagrams of optical lens 100 at wavelengths of 656.3 nm, 587.5 nm, 546.1 nm, 485.1 nm, and 435.8 nm. The x-axis represents the focus shift in mm, and the y-axis represents the normalized field of view. Figure 4 As can be seen from (A) in Example 2, the spherical aberration value of the optical lens 100 is better, indicating that the imaging quality of the optical lens 100 in this example is better.

[0155] Figure 4(B) in the figure shows the light astigmatism of the optical lens 100 in Example 2 at a wavelength of 546.1 nm. The horizontal axis along the X-axis represents the focus shift in mm, and the vertical axis along the Y-axis represents the field of view in degrees. In the astigmatism diagram, T represents the curvature of the imaging surface 101 in the meridional direction, and S represents the curvature of the imaging surface 101 in the sagittal direction. Figure 4 As can be seen from (B) in the figure, at this wavelength, the field curvature of the optical lens 100 is small, and the field curvature and astigmatism of each field of view are well corrected. The center and edge of the field of view have clear imaging, that is, the astigmatism of the optical lens 100 is well compensated.

[0156] Figure 4 (C) in the figure represents the distortion diagram of the optical lens 100 in Example 2 at a wavelength of 546.1 nm. The horizontal axis along the X-axis represents the distortion, and the vertical axis along the Y-axis represents the field of view, in degrees (deg). Figure 4 As can be seen from (C), at this wavelength, the image distortion caused by the main beam is small, and the distortion of the optical lens 100 is well corrected.

[0157] Example 3

[0158] Figure 5 This is a schematic diagram of the structure of the optical lens 100 disclosed in Embodiment 3 of this application. The optical lens 100 includes an aperture stop 102, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, an infrared filter 110, and an imaging surface 101, which are arranged sequentially from the object side to the image side along the optical axis. Among them, the object-side surface 1 of the first lens L1 is convex near the optical axis, and the image-side surface 2 of the first lens L1 is convex near the optical axis; the object-side surface 3 of the second lens L2 is concave near the optical axis, and the image-side surface 4 of the second lens L2 is concave near the optical axis; the object-side surface 5 of the third lens L3 is convex near the optical axis, and the image-side surface 6 of the third lens L3 is convex near the optical axis; the object-side surface 7 of the fourth lens L4 is convex near the optical axis, and the image-side surface 8 of the fourth lens L4 is concave near the optical axis; the object-side surface 9 of the fifth lens L5 is convex near the optical axis, and the image-side surface 10 of the fifth lens L5 is convex near the optical axis; the object-side surface 11 of the sixth lens L6 is concave near the optical axis, and the image-side surface 12 of the sixth lens L6 is concave near the optical axis.

[0159] Specifically, taking the optical lens 100 with a focal length F = 17.41 mm, an aperture number FNO = 1.47, and a maximum field of view (FOV) of 62.42 degrees as examples, other parameters of the optical lens 100 are given in Table 5 below. The definitions of each parameter can be derived from the description of the aforementioned embodiments and will not be repeated here. Furthermore, the refractive index, Abbe number, focal length, etc., in Table 5 are all obtained at a reference wavelength of 555 nm.

[0160] Table 5

[0161]

[0162]

[0163] Table 6 provides the higher-order coefficients of each aspherical mirror surface that can be used in Example 3 for the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6. The shape of each aspherical surface can be defined by the formula given in Example 1.

[0164] Table 6

[0165]

[0166] Figure 6 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens 100 disclosed in Embodiment 3 of this application. Figure 6 (A) in the figure is a spherical aberration diagram of optical lens 100 at wavelengths of 656.3nm, 587.5nm, 546.1nm, 485.1nm, and 435.8nm. Figure 6 (B) in the figure is a light astigmatism diagram of the optical lens 100 in Example 3 at a wavelength of 546.1 nm. The horizontal axis along the X-axis represents the focus shift in mm, and the vertical axis along the Y-axis represents the image height in mm. Figure 6 (C) in the figure represents the distortion diagram of the optical lens 100 in Example 1 at a wavelength of 546.1 nm. The horizontal axis along the X-axis represents distortion, and the vertical axis along the Y-axis represents image height, in mm. Furthermore, regarding... Figure 6 The X-axis, Y-axis and (A) in (A) Figure 6 In (B), S and T can be referred to in Example 1 regarding... Figure 2 The content described herein will not be repeated here.

[0167] Depend on Figure 6 As can be seen from (A) spherical aberration diagram, (B) astigmatism diagram and (C) distortion diagram, the spherical aberration, astigmatism and distortion of the optical lens 100 are well controlled, thereby enabling the optical lens 100 of this embodiment to have good imaging quality.

[0168] Example 4

[0169] Figure 7 This is a schematic diagram of the optical lens 100 disclosed in Embodiment 4 of this application. Taking the focal length F = 17.38 mm, the aperture number FNO = 1.5, and the maximum field of view FOV = 62.64 degrees of the optical lens 100 as examples, other parameters of the optical lens 100 are given in Table 7 below. The definitions of each parameter can be derived from the description of the foregoing embodiments, and will not be repeated here. The refractive index, Abbe number, focal length, etc. in Table 7 are all obtained at a reference wavelength of 555 nm. In addition, regarding the refractive power of each lens and the correspondence between the number of each surface and the object side and image side of each lens, please refer to Embodiment 1 above, and will not be repeated here.

[0170] Table 7

[0171]

[0172] Table 8 provides the higher-order coefficients of each aspherical mirror surface that can be used in Example 4, namely the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6. The shape of each aspherical surface can be defined by the formula given in Example 1.

[0173] Table 8

[0174]

[0175] Figure 8 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens 100 disclosed in Embodiment 4 of this application. Figure 8 As can be seen from (A) the spherical aberration diagram, (B) the astigmatism diagram, and (C) the distortion diagram, the spherical aberration, astigmatism, and distortion of the optical lens 100 are all well controlled, thus the optical lens 100 of this embodiment possesses good imaging quality. Furthermore, regarding... Figure 8 (A) Figure 8 (B) and Figure 8 The wavelengths corresponding to the curves in (C) can be found in Example 1. Figure 2 (A) Figure 2 (B) Figure 2 The content described in (C) will not be repeated here.

[0176] Example 5

[0177] Figure 9This is a schematic diagram of the optical lens 100 disclosed in Embodiment 5 of this application. Taking the focal length F = 17.34 mm, the aperture number FNO = 1.47, and the maximum field of view FOV = 62.54 degrees of the optical lens 100 as examples, other parameters of the optical lens 100 are given in Table 9 below. The definitions of each parameter can be derived from the description of the foregoing embodiments, and will not be repeated here. The refractive index, Abbe number, focal length, etc. in Table 9 are all obtained at a reference wavelength of 555 nm. In addition, regarding the refractive power of each lens and the correspondence between the number of each surface and the object side and image side of each lens, please refer to Embodiment 1 above, and will not be repeated here.

[0178] Table 9

[0179]

[0180] Table 10 gives the higher-order coefficients of each aspherical mirror surface that can be used in Example 5, namely the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6. The shape of each aspherical surface can be defined by the formula given in Example 1.

[0181] Table 10

[0182]

[0183]

[0184] Figure 10 These are the spherical aberration diagram (mm), astigmatism diagram (mm), and distortion diagram (%) of the optical lens 100 disclosed in Embodiment 5 of this application. Figure 10 As can be seen from (A) the spherical aberration diagram, (B) the astigmatism diagram, and (C) the distortion diagram, the spherical aberration, astigmatism, and distortion of the optical lens 100 are all well controlled, thus the optical lens 100 of this embodiment possesses good imaging quality. Furthermore, regarding... Figure 10 The wavelengths corresponding to curves (A), (B), and (C) can be found in Example 1 regarding... Figure 2 The contents described in (A), (B), and (C) will not be repeated here.

[0185] Please refer to Table 11, which is a summary of the ratios of the various relationships in Embodiments 1 to 5 of this application.

[0186] Table 11

[0187]

[0188]

[0189] Please see Figure 11This application also discloses a camera module 200, which includes an image sensor 201 and an optical lens 100 as described in any of the embodiments 1 to 5 above. The image sensor 201 is disposed on the image side of the optical lens 100. Specifically, the photosensitive surface of the image sensor 201 is located on the imaging surface 101 of the optical lens 100, and light rays from an object that pass through the lens and are incident on the photosensitive surface can be converted into electrical signals of an image. The image sensor 201 can be a complementary metal-oxide-semiconductor (CMOS) or a charge-coupled device (CCD).

[0190] The camera module 200 can be an imaging module integrated into the terminal device 300, or it can be a standalone lens. It is understood that the camera module 200 with the aforementioned optical lens 100 possesses all the technical effects of the optical lens 100, meaning that the camera module 200 can achieve a miniaturized design while simultaneously enabling the optical lens 100 to have a large aperture, large resolution, and high pixel count. Since the aforementioned technical effects have been described in detail in the embodiments of the optical lens 100, they will not be repeated here.

[0191] This application also discloses a terminal device 300, which includes a housing 301 and the aforementioned camera module 200, with the camera module 200 disposed in the housing 301. The terminal device 300 may include, but is not limited to, mobile phones, tablet computers, laptops, smartwatches, and monitors.

[0192] Please see Figure 12 Taking a mobile phone as an example, the housing 301 can be a mobile phone housing, and the camera module 200 can be located inside the mobile phone housing. It can be understood that the terminal device 300 with the aforementioned camera module 200 also possesses all the technical effects of the aforementioned optical lens 100. That is, the terminal device 300 can achieve a miniaturized design of the optical lens 100 while simultaneously enabling the optical lens 100 to have a large target area, a large aperture, and high pixel count. Since the aforementioned technical effects have been described in detail in the embodiments of the optical lens 100, they will not be repeated here.

[0193] The optical lens, camera module, and terminal device disclosed in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the optical lens, camera module, and terminal device of this application and their core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An optical lens, characterized in that, There are a total of six lenses with refractive power, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged in sequence from the object side to the image side along the optical axis; The first lens has a positive refractive power, and the object side surface of the first lens is convex near the optical axis; The second lens has a negative refractive power, and the image side surface of the second lens is concave near the optical axis; The third lens has a positive refractive power, and both the object side surface and the image side surface of the third lens are convex near the optical axis; The fourth lens has a negative refractive power, the object side surface of the fourth lens is convex near the optical axis, and the image side surface of the fourth lens is concave near the optical axis; The fifth lens has a positive refractive power, and both the object side surface and the image side surface of the fifth lens are convex near the optical axis; The sixth lens has a negative refractive power, and both the object side surface and the image side surface of the sixth lens are concave near the optical axis; The optical lens satisfies the following relationships: 1.3 < TTL / F < 1.5, 1.4 < FNO < 1.6, and 1.7 < IMGH / SD1 < 1.9; Where, TTL is the distance on the optical axis from the object side surface of the first lens to the imaging surface of the optical lens, F is the focal length of the optical lens, FNO is the aperture number of the optical lens, IMGH is half of the image height corresponding to the maximum field angle of the optical lens, and SD1 is half of the maximum effective aperture of the object side surface of the first lens.

2. The optical lens according to claim 1, characterized in that, The optical lens satisfies the following relationships: 40deg < FOV / FNO < 45deg, and / or, 1.7 < ∑CT / ∑AT < 1.9; Where, FOV is the maximum field angle of the optical lens, ∑CT is the sum of the thicknesses of all lenses on the optical axis from the first lens to the sixth lens, and ∑AT is the sum of the air gaps between adjacent two lenses from the first lens to the sixth lens.

3. The optical lens according to claim 1, characterized in that, The optical lens satisfies the following relationships: 1 < F1 / F < 2, and / or, -2 < F2 / F < -0.8, and / or, 2.5 < F3 / CT3 < 5.5, and / or, -15 < F6 / CT6 < -5; Where, F1 is the focal length of the first lens, F2 is the focal length of the second lens, F3 is the focal length of the third lens, CT3 is the thickness of the third lens on the optical axis, F6 is the focal length of the sixth lens, and CT6 is the thickness of the sixth lens on the optical axis.

4. The optical lens according to claim 1, characterized in that, The optical lens satisfies the following relationships: -25 < R9 / R10 < -2, and / or, -10 < R11 / R12 ≤ -0.4787; Where, R9 is the curvature radius of the object side surface of the fifth lens on the optical axis, R10 is the curvature radius of the image side surface of the fifth lens on the optical axis, R11 is the curvature radius of the object side surface of the sixth lens on the optical axis, and R12 is the curvature radius of the image side surface of the sixth lens on the optical axis.

5. The optical lens according to claim 1, characterized in that, The optical lens satisfies the following relationships: 1.3 < CT1 / ET1 < 1.7, and / or, 9mm < TTL*SD1 / R1 < 12mm, and / or, 1 < SD1 / SD3 < 1.1; Where, CT1 is the thickness of the first lens on the optical axis, ET1 is the distance in the optical axis direction from the maximum effective aperture of the object side of the first lens to the maximum effective aperture of the image side of the first lens, R1 is the curvature radius of the object side of the first lens at the optical axis, and SD3 is half of the maximum effective aperture of the object side of the second lens.

6. The optical lens according to claim 1, characterized in that, The optical lens satisfies the following relational expressions: 0mm < (R4 + R5 + R6 + R7) / (VD3 - VD2) < 1mm, and / or, 0.1077 ≤ |(R5 + R6) / CT3| < 3, and / or, 2 < CT3 / ET3 < 3; Where, R4 is the curvature radius of the image side of the second lens at the optical axis, R5 is the curvature radius of the object side of the third lens at the optical axis, R6 is the curvature radius of the image side of the third lens at the optical axis, R7 is the curvature radius of the object side of the fourth lens at the optical axis, VD2 is the Abbe number of the second lens, VD3 is the Abbe number of the third lens, CT3 is the thickness of the third lens on the optical axis, and ET3 is the distance in the optical axis direction from the maximum effective aperture of the object side of the third lens to the maximum effective aperture of the image side of the third lens.

7. The optical lens according to claim 1, characterized in that, The optical lens satisfies the following relational expressions: -3 < SD12 / (SAG11 + SAG12) < -1, and / or, 8 < (R10 + R11 + R12) / SAG9 ≤ 290.5, and / or, 3 < SAG11 / SAG12 < 8; Where, SD12 is half of the maximum effective aperture of the image side of the sixth lens, SAG11 is the distance on the optical axis from the intersection point of the object side of the sixth lens and the optical axis to the maximum effective aperture of the object side of the sixth lens, SAG12 is the distance on the optical axis from the intersection point of the image side of the sixth lens and the optical axis to the maximum effective aperture of the image side of the sixth lens, R10 is the curvature radius of the image side of the fifth lens at the optical axis, R11 is the curvature radius of the object side of the sixth lens at the optical axis, R12 is the curvature radius of the image side of the sixth lens at the optical axis, and SAG9 is the distance on the optical axis from the intersection point of the object side of the fifth lens and the optical axis to the maximum effective aperture of the object side of the fifth lens.

8. The optical lens according to claim 1, characterized in that, The optical lens satisfies the following relational expressions: 2.5 < CT45 / CT4 < 3.5, and / or, 3 < TTL / (CT4 + CT5 + CT6) < 5, and / or, 2 < |F / (F1 + F2 + F3 + F4 + F5)| < 6; Where, CT45 is the distance on the optical axis from the image side of the fourth lens to the object side of the fifth lens, CT4 is the thickness of the fourth lens on the optical axis, CT5 is the thickness of the fifth lens on the optical axis, CT6 is the thickness of the sixth lens on the optical axis, F1 is the focal length of the first lens, F2 is the focal length of the second lens, F3 is the focal length of the third lens, F4 is the focal length of the fourth lens, F5 is the focal length of the fifth lens, and F6 is the focal length of the sixth lens.

9. A camera module, characterized in that, The camera module includes an image sensor and an optical lens as described in any one of claims 1-8, wherein the image sensor is disposed on the image side of the optical lens.

10. A terminal device, characterized in that, The terminal device includes a housing and a camera module as described in claim 9, wherein the camera module is disposed in the housing.

Images