Optical lens, camera module and terminal device

Abstract

The application discloses an optical lens, a camera module and a terminal device. The optical lens has six lenses with refractive power, and sequentially comprises, from the object side to the image side along the optical axis, a first lens with negative refractive power, the object side surface of which is a convex surface at the near optical axis, and the image side surface of which is a concave surface at the near optical axis; a second lens with negative refractive power, the object side surface of which is a concave surface at the near optical axis, and the image side surface of which is a convex surface at the near optical axis; a third lens with positive refractive power, the object side surface of which is a convex surface at the near optical axis; a fourth lens with positive refractive power, the object side surface of which is a convex surface at the near optical axis, and the image side surface of which is a convex surface at the near optical axis; a fifth lens with negative refractive power, the object side surface of which is a concave surface at the near optical axis; and a sixth lens, the object side surface of which is a convex surface at the near optical axis, and the image side surface of which is a concave surface at the near optical axis. The optical lens satisfies the relationship: 115°≤FOV≤130°, 4.8≤TTL / F≤5.5. The optical lens meets the requirements of a large field of view, high resolution and small size.

Description

Technical Field

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

[0002] Thanks to the rapid development of automotive driver-assistance systems in recent years, optical lenses have been widely used in automobiles. These lenses are widely used in applications such as on-board parking sensors, dashcams, automatic and panoramic parking systems, and road-finding systems. Automotive optical lenses are key components for autonomous driving assistance systems to acquire external information. With the rapid development of autonomous driving assistance systems, the performance requirements for forward-view optical lenses are becoming increasingly stringent, with a trend towards large field of view, high resolution, and miniaturization. Therefore, there is a pressing need for optical lenses with a large field of view, high resolution, and compact size to meet the needs of automotive forward-view applications. Summary of the Invention

[0003] In view of the above, it is necessary to propose an optical lens, a camera module and a terminal device to meet the requirements of large field of view, high resolution and miniaturization.

[0004] In order to achieve the above-mentioned objectives, in a first aspect, the present application discloses an optical lens, comprising a total of six lenses with refractive power, which include, in order from the object side to the image side along the optical axis: a first lens having negative refractive power, wherein the object side surface of the first lens is convex at the near optical axis, and the image side surface of the first lens is concave at the near optical axis; a second lens having negative refractive power, wherein the object side surface of the second lens is concave at the near optical axis, and the image side surface of the second lens is convex at the near optical axis; a third lens having positive refractive power, wherein the object side surface of the third lens is convex at the near optical axis; a fourth lens having positive refractive power, wherein the object side surface of the fourth lens is concave at the near optical axis is convex, and the image side surface of the fourth lens is convex at the near optical axis; the fifth lens has negative refractive power, and the object side surface of the fifth lens is concave at the near optical axis; the sixth lens has refractive power, the object side surface of the sixth lens is convex at the near optical axis, and the image side surface of the sixth lens is concave at the near optical axis; the optical lens satisfies the following relationship: 115°≤FOV≤130°, 4.8≤TTL / F≤5.5; wherein FOV is the maximum field of view of the optical lens, TTL is the distance from the object side surface of the first lens to the imaging plane of the optical lens on the optical axis, and F is the effective focal length of the optical lens.

[0005] In the optical lens provided by the present application, a first lens having negative refractive power, when paired with a convex object-side surface at the near optical axis and a concave image-side surface at the near optical axis, can effectively control the effective aperture of the first lens of the optical lens, so that the optical lens has a larger light incident angle, which is conducive to achieving a large field of view of the optical lens; a second lens having negative refractive power, when paired with a concave object-side surface at the near optical axis and a convex image-side surface at the near optical axis, can effectively constrain light incident at a large angle projected by the first lens, so that the light is smoothly projected after passing through the second lens, which is conducive to reducing field curvature and astigmatism of the optical lens and reducing distortion; a third lens having positive refractive power, when paired with a convex object-side surface at the near optical axis, can converge light smoothly projected by the second lens after passing through the third lens, thereby reducing the decentration sensitivity of the optical lens and reducing the total optical length of the optical lens; a fourth lens having positive refractive power can be well bonded with a fifth lens having negative refractive power to form a cemented lens, which is conducive to reducing chromatic aberration and correcting spherical aberration of the optical lens, improving the resolution of the optical lens, and reducing the length of the optical lens. In addition, the fourth lens element with positive refractive power is matched with the object-side surface that is convex at the near optical axis and the image-side surface that is convex at the near optical axis, which is beneficial to improving the resolving power of the optical lens; the fifth lens element with negative refractive power is matched with the object-side surface that is concave at the near optical axis, so that the light projected by the fourth lens enters smoothly, which is beneficial to reducing the chromatic aberration of the optical lens and correcting the spherical aberration of the optical lens, thereby improving the resolution of the optical lens; the sixth lens element with refractive power is matched with the object-side surface that is convex at the near optical axis and the image-side surface that is concave at the near optical axis, so that the light projected smoothly by the fifth lens converges after passing through the object-side surface of the sixth lens and enters the imaging surface smoothly through the image-side surface of the sixth lens, thereby improving the resolving power of the optical lens and helping the optical lens to adapt to large-size imaging surfaces.

[0006] When the optical lens meets 115°≤FOV≤130°, the optical lens has a larger field of view, which is beneficial for the optical lens to obtain subject information within a larger angle, so that the optical lens can meet the requirements of a large field of view; when the optical lens meets 4.8≤TTL / F≤5.5, the ratio of the total length of the optical lens to the effective focal length of the optical lens can be controlled within a reasonable range, which is beneficial for better convergence of light on the imaging surface, and is beneficial for improving the resolution capability of the optical lens, while enabling the optical lens to achieve a miniaturized design.

[0007] In a second aspect, the present application discloses a camera module comprising a photosensitive chip and the optical lens described in the first aspect, wherein the photosensitive chip is disposed on the image side of the optical lens. The camera module with the optical lens can meet the requirements of a large field of view, high resolution, and miniaturization.

[0008] In a third aspect, the present application discloses a terminal device comprising a housing and the camera module described in the second aspect, wherein the camera module is disposed in the housing. The terminal device having the camera module can meet the requirements of a large field of view, high resolution, and miniaturization. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic structural diagram of the optical lens disclosed in the first embodiment of this application.

[0010] Figure 2 These are the longitudinal spherical aberration curve, astigmatism curve, and distortion curve of the optical lens disclosed in the first embodiment of the present application.

[0011] Figure 3 It is a schematic structural diagram of the optical lens disclosed in the second embodiment of the present application.

[0012] Figure 4 This is a longitudinal spherical aberration curve diagram, an astigmatism curve diagram, and a distortion curve diagram of the optical lens disclosed in the second embodiment of the present application.

[0013] Figure 5 It is a schematic structural diagram of the optical lens disclosed in the third embodiment of this application.

[0014] Figure 6 3. This is a longitudinal spherical aberration curve diagram, an astigmatism curve diagram, and a distortion curve diagram of the optical lens disclosed in the third embodiment of the present application.

[0015] Figure 7 It is a schematic structural diagram of the optical lens disclosed in the fourth embodiment of the present application.

[0016] Figure 8 4. It is a longitudinal spherical aberration curve diagram, an astigmatism curve diagram and a distortion curve diagram of the optical lens disclosed in the fourth embodiment of the present application.

[0017] Figure 9 It is a schematic structural diagram of the optical lens disclosed in the fifth embodiment of the present application.

[0018] Figure 10 1 and 2. These are the longitudinal spherical aberration curve, astigmatism curve, and distortion curve of the optical lens disclosed in the fifth embodiment of the present application.

[0019] Figure 11 It is a schematic structural diagram of the optical lens disclosed in the sixth embodiment of the present application.

[0020] Figure 12 1 and 2. These are the longitudinal spherical aberration curve, astigmatism curve, and distortion curve of the optical lens disclosed in the sixth embodiment of the present application.

[0021] Figure 13 It is a structural schematic diagram of the camera module disclosed in this application.

[0022] Figure 14 It is a structural diagram of the terminal device disclosed in this application. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 The present embodiment discloses an optical lens 100 having a total of six lenses with refractive power. Along the optical axis O, from the object side to the image side, they are 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. During imaging, light rays enter 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 in sequence from the object side of the first lens L1, and are ultimately imaged on the imaging surface IMG of the optical lens 100.

[0025] Furthermore, the first lens L1 has negative refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has refractive power.

[0026] Furthermore, the object-side surface S1 of the first lens L1 is convex at the near optical axis O, and the image-side surface S2 of the first lens L1 is concave at the near optical axis O; the object-side surface S3 of the second lens L2 is concave at the near optical axis O, and the image-side surface S4 of the second lens L2 is convex at the near optical axis O; the object-side surface S5 of the third lens L3 is convex at the near optical axis O; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis O, and the image-side surface S8 of the fourth lens L4 is convex at the near optical axis O; the object-side surface S9 of the fifth lens L5 is concave at the near optical axis O; the object-side surface S11 of the sixth lens L6 is convex at the near optical axis O, and the image-side surface S12 of the sixth lens L6 is concave at the near optical axis O.

[0027] In the optical lens 100 provided in the present application, the first lens L1 having negative refractive power, in combination with the object-side surface S1 having a convex surface at the near optical axis O and the image-side surface S2 having a concave surface at the near optical axis O, can effectively control the effective aperture of the first lens L1 of the optical lens 100, so that the optical lens 100 has a larger angle of incidence of light, which is conducive to achieving a large field of view of the optical lens 100; the second lens L2 having negative refractive power, in combination with the object-side surface S3 having a concave surface at the near optical axis O and the image-side surface S4 having a convex surface at the near optical axis O, can effectively constrain the light incident at a large angle projected by the first lens L1, so that the light is smoothly projected after passing through the second lens L2. , which is beneficial to reducing the field curvature and astigmatism of the optical lens 100 and reducing distortion; the third lens L3 with positive refractive power is matched with the object-side surface S5 with a convex surface near the optical axis O, and the light smoothly projected by the second lens L2 can be converged after passing through the third lens L3, thereby reducing the decentering sensitivity of the optical lens 100 and reducing the total optical length of the optical lens 100; the fourth lens L4 with positive refractive power can be well cemented with the fifth lens L5 with negative refractive power to form a cemented lens, which is beneficial to reducing the chromatic aberration of the optical lens 100 and correcting the spherical aberration of the optical lens 100, thereby improving the resolution of the optical lens 100 and reducing the size of the optical lens 100. In addition, the fourth lens element L4 having positive refractive power is matched with the object-side surface S7 having a convex surface at the near optical axis O and the image-side surface S8 having a convex surface at the near optical axis O, which is beneficial for improving the resolving power of the optical lens 100. The fifth lens element L5 having negative refractive power is matched with the object-side surface S9 having a concave surface at the near optical axis O, so that the light projected by the fourth lens element L4 is smoothly incident on the optical lens 100, which is beneficial for reducing chromatic aberration of the optical lens 100 and correcting spherical aberration of the optical lens 100, thereby improving the resolution of the optical lens 100. The sixth lens element L6 having refractive power is matched with the object-side surface S11 having a convex surface at the near optical axis O and the image-side surface S12 having a concave surface at the near optical axis O. The light projected smoothly by the fifth lens element L5 is converged by the object-side surface S11 of the sixth lens element L6 and smoothly incident on the imaging surface IMG by the image-side surface S12 of the sixth lens element L6, thereby improving the resolving power of the optical lens 100 and facilitating the adaptation of the optical lens 100 to a large-sized imaging surface. Therefore, the optical lens 100 of the present application can meet the requirements of large field of view, high resolution and miniaturization.

[0028] In some embodiments, when the optical lens 100 is used in a terminal device such as an in-vehicle device or a driving recorder, 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 may all be made of glass. This allows the optical lens 100 to achieve excellent optical effects while also reducing the effects of temperature on these lenses. Of course, among the multiple lenses of the optical lens 100, some lenses may be made of glass, while others may be made of plastic. This not only reduces the effects of temperature on the lenses to achieve better imaging effects, but also reduces the manufacturing cost and weight of the lenses, thereby reducing the manufacturing cost and overall weight of the optical lens 100. Furthermore, it is understood that when the optical lens 100 is used in a terminal device such as a smartphone or a smart tablet, 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 may be made of plastic to reduce the overall weight of the optical lens 100.

[0029] In some embodiments, considering the simple manufacturing process and low production cost of spherical lenses, as well as the flexibility in designing the lens surface shape, the imaging resolution capability of the optical lens 100 is enhanced. Aspherical lenses allow for more flexible design of the object-side or image-side surfaces of the lens, effectively resolving undesirable issues such as unclear imaging, distorted visual field, or narrow field of view while maintaining a smaller and thinner lens. Furthermore, the optical lens 100 can achieve good imaging quality without requiring an excessive number of lenses, thereby shortening the length of the optical lens 100. Based on this, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 can be spherical lenses, and the first lens L1 and the sixth lens L6 can be aspherical lenses. This combination of spherical and aspherical surfaces not only improves the machinability of each lens, facilitating surface design, but also allows for more flexible design of the object-side and image-side surfaces of the lenses. This allows each lens to effectively address issues such as blurred imaging, distorted visual field, or a narrow field of view while maintaining a relatively small and thin size. Furthermore, the optical lens 100 can achieve good imaging quality without requiring an excessive number of lenses, facilitating a reduction in the length of the optical lens 100. It will be appreciated that in other embodiments, the surfaces of each lens in the optical lens 100 can be all spherical, all aspherical, or any combination of spherical and aspherical surfaces. The specific selection can be based on actual needs and is not specifically limited in this embodiment.

[0030] In some embodiments, the optical lens 100 further includes a stop STO, which may be an aperture stop and / or a field stop. For example, the stop STO may be an aperture stop, or the stop STO may be a field stop, or the stop STO may be both an aperture stop and a field stop. By disposing the stop STO between the image-side surface S4 of the second lens L2 and the object-side surface S5 of the third lens L3, the exit pupil can be moved away from the imaging plane IMG. This can reduce the effective diameter of the optical lens 100 without reducing the telecentricity of the optical lens 100, thereby achieving miniaturization. It is understood that in other embodiments, the stop STO may also be disposed between other lenses, and the arrangement may be adjusted according to actual circumstances. This is not specifically limited in this embodiment.

[0031] In some embodiments, the optical lens 100 further includes a filter IR, which is disposed between the sixth lens L6 and the imaging surface IMG of the optical lens 100. Optionally, the filter IR may be an infrared cutoff filter to filter out infrared light and pass visible light, so that the imaging is more in line with the visual experience of the human eye, thereby improving the imaging quality. In other embodiments, the filter IR may be an infrared bandpass filter to allow infrared light to pass through and reflect visible light to achieve infrared imaging of the optical lens 100, so that the optical lens 100 can image in a dark environment or special application scenarios and obtain better imaging quality. It is understandable that the filter IR can be made of plastic, or made of optical glass coating, or an infrared filter of other materials, which can be selected according to actual needs and is not specifically limited in this embodiment.

[0032] In some embodiments, the optical lens 100 further includes a protective glass CG, which is disposed between the filter IR and the imaging surface IMG of the optical lens 100, thereby protecting the photosensitive chip and preventing dust. The protective glass CG can be made of plastic, optical glass coating, or other materials, and can be selected according to actual needs and is not specifically limited in this embodiment. It is understood that the protective glass CG can be part of the optical lens 100 or can be removed from the optical lens 100. However, when the protective glass CG is removed, the overall optical length of the optical lens 100 remains unchanged.

[0033] In some embodiments, the optical lens 100 satisfies the relationship: 115°≤FOV≤130°. Wherein, FOV is the maximum field of view angle of the optical lens 100. Furthermore, 115°≤FOV≤127°. Specifically, FOV can be 115°, 116°, 117°, 118°, 119°, 120°, 122°, 123°, 124°, 125°, 126°, 127°, 128°, 129°, 130°, etc. When the optical lens 100 satisfies the above relationship, the optical lens 100 has a larger field of view angle, which is beneficial for the optical lens 100 to obtain subject information within a larger angle, so that the optical lens 100 meets the requirements of a large field of view.

[0034] In some embodiments, the optical lens 100 satisfies the relationship: 4.8 ≤ TTL / F ≤ 5.5. Here, TTL is the distance from the object-side surface S1 of the first lens L1 to the imaging surface IMG of the optical lens 100 on the optical axis O, and F is the effective focal length of the optical lens 100. Furthermore, 4.886 ≤ TTL / F ≤ 5.415. Specifically, TTL / F can be 4.8, 4.85, 4.886, 4.9, 4.95, 5.0, 5.05, 5.1, 5.15, 5.2, 5.25, 5.3, 5.35, 5.4, 5.415, 5.45, 5.5, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the total length TTL of the optical lens 100 and the effective focal length F of the optical lens 100, it is beneficial to better converge the light on the imaging surface IMG, which is beneficial to improving the resolution capability of the optical lens 100, reducing the sensitivity of the optical lens 100, and at the same time helping to achieve a miniaturized design of the optical lens 100.

[0035] In some embodiments, the optical lens 100 satisfies the relationship: 6.5≤TTL / SD1≤7.2. Here, SD1 is half of the maximum effective aperture of the object-side surface S1 of the first lens L1. Furthermore, 6.503≤TTL / SD1≤7.105. Specifically, TTL / SD1 can be 6.5, 6.503, 6.55, 6.6, 6.65, 6.7, 6.75, 6.8, 6.85, 6.9, 6.95, 7.0, 7.05, 7.1, 7.105, 7.15, 7.2, etc. When the optical lens 100 satisfies the above relationship, under a certain total length of the optical lens 100, by reasonably configuring the ratio of the total length TTL of the optical lens 100 to the maximum effective aperture SD1 of the object-side surface S1 of the first lens L1, the head size and volume of the optical lens 100 can be effectively limited, which is conducive to achieving a miniaturized design of the optical lens 100.

[0036] In some embodiments, the optical lens 100 satisfies the relationship: 1.24≤F / ImgH≤1.4. Here, ImgH is half of the image height corresponding to the maximum field of view of the optical lens 100. Furthermore, 1.248≤F / ImgH≤1.382. Specifically, F / ImgH can be 1.24, 1.248, 1.25, 1.26, 1.28, 1.29, 1.3, 1.31, 1.32, 1.33, 1.34, 1.35, 1.36, 1.37, 1.38, 1.382, 1.39, 1.4, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of F to ImgH, it is beneficial to improve the resolution of the optical lens 100, thereby improving the imaging quality of the optical lens 100.

[0037] In some embodiments, the optical lens 100 satisfies the relationship: -2.1≤F1 / F≤-1.7. Wherein, F1 is the effective focal length of the first lens L1. Furthermore, -2.031≤F1 / F≤-1.722. Specifically, F1 / F can be -2.1, -2.05, -2.0, -2.031, -1.95, -1.9, -1.85, -1.8, -1.75, -1.722, -1.7, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the effective focal length F1 of the first lens L1 to the effective focal length F of the optical lens 100, the first lens L1 can be prevented from introducing excessive spherical aberration and the aberration can be effectively corrected, thereby improving the resolution capability of the optical lens 100.

[0038] In some embodiments, the optical lens 100 satisfies the relationship: 1.9≤F3 / F≤2.2. Wherein, F3 is the effective focal length of the third lens L3. Furthermore, 1.915≤F3 / F≤2.148. Specifically, F3 / F can be 1.9, 1.915, 1.95, 2.0, 2.05, 2.1, 2.148, 2.15, 2.2, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the effective focal length F3 of the third lens L3 to the effective focal length F of the optical lens 100, the incident light of the first lens L1 and the second lens L2 can be effectively collected and compressed, so that the light can smoothly transition to the fourth lens L4 through the third lens L3, reducing the generation of spherical aberration and aberration, thereby improving the imaging quality of the optical lens 100.

[0039] In some embodiments, the optical lens 100 satisfies the relationship: 1≤F4 / F≤1.4. Here, F4 is the effective focal length of the fourth lens L4. Furthermore, 1.086≤F4 / F≤1.365. Specifically, F4 / F can be 1.0, 1.05, 1.086, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.365, 1.4, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the effective focal length F4 of the fourth lens L4 to the effective focal length F of the optical lens 100, the aberrations can be effectively corrected after the fourth lens L4 and the fifth lens L5 are combined, thereby further improving the resolution of the optical lens 100.

[0040] In some embodiments, the optical lens 100 satisfies the relationship: -11≤F1 / CT1≤-8. Wherein, CT1 is the thickness of the first lens L1 on the optical axis O. Furthermore, -10.345≤F1 / CT1≤-8.734. Specifically, F1 / CT1 can be -11, -10.5, -10.345, -10, -9.5, -9, -8.734, -8.5, -8, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the effective focal length of the first lens L1 to the thickness of the first lens L1, the incident light entering the optical lens 100 at a large angle can be smoothly entered, thereby expanding the field of view angle range of the optical lens 100, so that the optical lens 100 meets the requirements of a large field of view.

[0041] In some embodiments, the optical lens 100 satisfies the relationship: 1.3≤SAGS2 / CT1≤1.6. Wherein, SAGS2 is the sagittal height of the edge of the optical effective diameter of the image side surface S2 of the first lens L1. Furthermore, 1.313≤SAGS2 / CT1≤1.574. Specifically, SAGS2 / CT1 can be 1.3, 1.313, 1.35, 1.4, 1.45, 1.5, 1.55, 1.574, 1.6, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of SAGS2 to CT1, it is beneficial to control the curvature of the image side surface S2 of the first lens L1, thereby controlling the head diameter of the first lens L1, which is beneficial to the processing of the first lens L1. When the ratio of SAGS2 to CT1 exceeds the upper limit of the above relationship, the image side surface S2 of the first lens L1 is too curved, which is not conducive to the surface shape control of the first lens L1 and increases the risk of ghosting. When the ratio of SAGS2 to CT1 is lower than the lower limit of the above relationship, the first lens L1 is too thick, which affects the miniaturization of the entire optical lens 100.

[0042] In some embodiments, the optical lens 100 satisfies the relationship: 0.95≤SD1 / ImgH≤1.05. Furthermore, 0.95≤SD1 / ImgH≤1.038. Specifically, SD1 / ImgH can be 0.95, 0.96, 0.97, 0.98, 0.99, 1.00, 1.01, 1.02, 1.03, 1.038, 1.04, 1.05, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of SD1 to ImgH, the optical lens 100 can meet the requirements of adapting to a large-sized imaging surface IMG while taking into account the miniaturized design of the head of the optical lens 100.

[0043] In some embodiments, the optical lens 100 satisfies the relationship: 0.8≤SD7 / SD6≤1.2. Here, SD6 is half of the maximum effective aperture of the image-side surface S6 of the third lens L3, and SD7 is half of the maximum effective aperture of the object-side surface S7 of the fourth lens L4. Furthermore, 0.868≤SD7 / SD6≤1.157. Specifically, SD7 / SD6 can be 0.8, 0.85, 0.8680.9, 0.95, 1.0, 1.05, 1.1, 1.15, 1.157, 1.2, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of SD7 to SD6, it is possible to reduce the total optical length of the optical lens 100 while utilizing the third lens L3 to expand the peripheral field of view light, thereby reducing the decentering sensitivity of the optical lens 100, which is beneficial to improving the production yield of the optical lens 100 while achieving a miniaturized design of the optical lens 100.

[0044] In some embodiments, the optical lens 100 satisfies the relationship: 0.5 ≤ CT4 / CT5 ≤ 4.62. Here, CT4 is the thickness of the fourth lens element L4 along the optical axis O, and CT5 is the thickness of the fifth lens element L5 along the optical axis O. Furthermore, 0.503 ≤ CT4 / CT5 ≤ 4.377. Specifically, CT4 / CT5 can be 0.5, 0.503, 0.7, 0.9, 1.0, 1.1, 1.3, 1.4, 1.5, 1.7, 1.9, 2.0, 2.2, 2.4, 2.6, 2.8, 3.0, 3.1, 3.2, 3.4, 3.6, 3.8, 4.0, 4.1, 4.3, 4.377, 4.5, 4.6, 4.62, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the thickness of the fourth lens L4 to the thickness of the fifth lens L5, the length of the fourth lens L4 and the fifth lens L5 after bonding is reduced, which is conducive to achieving a miniaturized design of the optical lens 100.

[0045] In some embodiments, the optical lens 100 satisfies the relationship: -2 ≤ F5 / F4 ≤ -1. Here, F5 is the effective focal length of the fifth lens L5. Furthermore, -1.683 ≤ F5 / F4 ≤ -1.036. Specifically, F5 / F4 can be -2, -1.9, -1.8, -1.7, -1.6, -1.683, -1.5, -1.4, -1.3, -1.2, -1.1, -1.036, -1, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the effective focal length F5 of the fifth lens L5 to the effective focal length F4 of the fourth lens L4, the fourth lens L4 and the fifth lens L5 can be prevented from introducing excessive spherical aberration, effectively correcting aberrations, improving the resolving power of the optical lens 100, and reducing the length of the fourth lens L4 and the fifth lens L5 after bonding.

[0046] In some embodiments, the optical lens 100 satisfies the relationship: 0.95≤R3 / (R4+CT2)≤1.7. Here, R3 is the radius of curvature of the object-side surface S3 of the second lens element L2 at the optical axis O, R4 is the radius of curvature of the image-side surface S4 of the second lens element L2 at the optical axis O, and CT2 is the thickness of the second lens element L2 at the optical axis O. Furthermore, 0.997≤R3 / (R4+CT2)≤1.681. Specifically, R3 / (R4+CT2) can be 0.95, 0.997, 1.0, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.681, 1.7, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratios of R3, R4 and CT2, the shape of the second lens L2 is close to a concentric circle, which is conducive to a smooth transition of the light passing through the second lens L2, and is conducive to reducing the front port diameter of the optical lens 100, reducing the volume of the optical lens 100, and realizing a miniaturized design of the optical lens 100 and reducing costs.

[0047] In some embodiments, the optical lens 100 satisfies the relationship: 1.6 mm -1 ≤|(Vd4-Vd5) / F45|≤3.4mm -1 Wherein, Vd4 is the Abbe number of the fourth lens L4, Vd5 is the Abbe number of the fifth lens L5, and F45 is the combined effective focal length of the fourth lens L4 and the fifth lens L5. Further, 1.661 mm -1 ≤|(Vd4-Vd5) / F45|≤3.301mm -1 Specifically, |(Vd4-Vd5) / F45| can be 1.6 mm -1 , 1.661mm -1 , 1.7mm -1 , 1.8mm -1, 1.9mm -1 , 2.0mm -1 , 2.1mm -1 , 2.2mm -1 , 2.3mm -1 , 2.4mm -1 , 2.5mm -1 , 2.6mm -1 , 2.7mm -1 , 2.8mm -1 , 2.9mm -1 , 3.0mm -1 , 3.1mm -1 , 3.2mm -1 , 3.3mm -1 , 3.301mm -1 , 3.4mm -1 When the optical lens 100 satisfies the above relationship, by properly configuring the ratio of the difference in Abbe numbers between the fourth lens element L4 and the fifth lens element L5 to the combined effective focal length F45 of the fourth lens element L4 and the fifth lens element L5, chromatic aberration of the optical system can be effectively corrected, the authenticity of chromatic aberration can be restored, and the resolution and imaging quality of the optical lens 100 can be improved.

[0048] In some embodiments, the optical lens 100 satisfies the relationship: 2.9≤F45 / F≤6.2. Furthermore, 2.993≤F45 / F≤6.183. Specifically, F45 / F can be 2.9, 2.993, 3.0, 3.1, 3.3, 3.5, 3.7, 3.9, 4.0, 4.2, 4.4, 4.6, 4.8, 5.0, 5.1, 5.3, 5.5, 5.7, 5.9, 6.0, 6.1, 6.183, 6.2, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the effective combined focal length F45 of the fourth lens element L4 and the fifth lens element L5 to the effective focal length F of the optical lens 100, chromatic aberration correction and balancing various aberrations can be achieved, thereby improving the resolution of the optical lens 100, effectively reducing tolerance sensitivity, and enhancing the imaging quality of the optical lens 100.

[0049] In some embodiments, the optical lens 100 satisfies the relationship: 1.4 ≤ CT4 / ET4 ≤ 2.7. ET4 is the distance from the maximum effective aperture of the object-side surface S7 of the fourth lens L4 to the maximum effective aperture of the image-side surface S8 of the fourth lens L4 in the direction of the optical axis O. Furthermore, 1.402 ≤ CT4 / ET4 ≤ 2.678. Specifically, CT4 / ET4 can be 1.4, 1.402, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.678, 2.7, etc. When the optical lens 100 satisfies the above relationship, by properly configuring the ratio of CT4 to ET4 and properly controlling the ratio of the center thickness to the edge thickness of the fourth lens L4, the overall thickness of the fourth lens L4 can be made reasonable, facilitating bonding of the fourth lens L4 and the fifth lens L5 while also achieving a miniaturized design of the optical lens 100.

[0050] In some embodiments, the optical lens 100 satisfies the relationship: |R5 / R6|≤0.55. R5 is the radius of curvature of the object-side surface S5 of the third lens element L3 at the optical axis O, and R6 is the radius of curvature of the image-side surface S6 of the third lens element L3 at the optical axis O. Furthermore, 0.086≤|R5 / R6|≤0.541. Specifically, |R5 / R6| can be 0.001, 0.086, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.541, 0.55, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the curvature radii of the object-side surface S5 and the image-side surface S6 of the third lens element L3, the refractive power of the third lens element L3 of the optical lens 100 is uniformly distributed, which is beneficial for correcting the distortion and aberration produced by the first lens element L1 and the second lens element L2, reducing the sensitivity of the optical lens element 100 to performance changes, and improving the resolution capability.

[0051] In some embodiments, the optical lens 100 satisfies the relationship: 0.3 ≤ R11 / R12 ≤ 1.4. Here, R11 is the radius of curvature of the object-side surface S11 of the sixth lens element L6 at the optical axis O, and R12 is the radius of curvature of the image-side surface S12 of the sixth lens element L6 at the optical axis O. Furthermore, 0.330 ≤ R11 / R12 ≤ 1.371. Specifically, R11 / R12 can be 0.3, 0.330, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.371, 1.4, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the curvature radii of the object-side surface S11 and the image-side surface S12 of the sixth lens element L6, the refractive power of the sixth lens element L6 of the optical lens 100 is uniformly distributed, which helps to correct the distortion and aberration produced by the first lens element L1, the second lens element L2, the third lens element L3, the fourth lens element L4, and the fifth lens element L5, reduces the sensitivity of the optical lens element 100 to performance changes, and helps to improve the resolution capability.

[0052] In some embodiments, the optical lens 100 satisfies the relationship: 1.3 ≤ CT6 / CT56 ≤ 33. Here, CT6 is the thickness of the sixth lens L6 on the optical axis O, and CT56 is the distance between the image-side surface S10 of the fifth lens L5 and the object-side surface S11 of the sixth lens L6 on the optical axis O. Furthermore, 1.371 ≤ CT6 / CT56 ≤ 32.639. Specifically, CT6 / CT56 can be 1.3, 1.371, 1.4, 1.6, 1.8, 2, 3, 5, 7, 9, 10, 15, 20, 25, 26, 28, 29, 30, 31, 32, 32.639, 33, etc. When the optical lens 100 satisfies the above relationship, the thickness of the sixth lens L6 can be effectively controlled by rationally configuring the ratio of CT6 to CT56, thereby facilitating a miniaturized design of the optical lens 100.

[0053] In some embodiments, the optical lens 100 satisfies the relationship: 2.1≤F*tan(FOV / 2) / ImgH≤2.55. Furthermore, 2.170≤F*tan(FOV / 2) / ImgH≤2.503. Specifically, F*tan(FOV / 2) / ImgH can be 2.1, 2.15, 2.170, 2.2, 2.25, 2.3, 2.35, 2.4, 2.45, 2.5, 2.503, 2.55, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F, FOV and ImgH, the optical lens 100 can be miniaturized while also having a large field of view.

[0054] In some embodiments, the optical lens 100 satisfies the relationship: -63 ≤ arctan (1 / K12) ≤ -57. K12 is the edge slope of the image-side surface S12 of the sixth lens L6 corresponding to the maximum field of view of the optical lens 100. Furthermore, -62.668 ≤ arctan (1 / K12) ≤ -57.668. Specifically, arctan (1 / K12) can be -63, -62.668, -62.5, -62, -61.5, -61, -60.5, -60, -59.5, -59, -58.5, -58, -57.668, -57.5, -57, etc. When the optical lens 100 satisfies the above relationship, the opening angle of the central area of ​​the image-side surface S12 of the sixth lens L6 can be a positive opening angle curved toward the image-side surface S12, and the opening angle of the edge area can be zero or a negative opening angle curved toward the object-side surface S, thereby making the opening angles of the central area and the edge area of ​​the image-side surface S12 of the sixth lens L6 different, thereby causing an inflection point to exist on the image-side surface S12 of the sixth lens L6, which is beneficial for correcting astigmatism and field curvature, and is beneficial for improving the resolving ability of the optical lens 100.

[0055] In some embodiments, the optical lens 100 satisfies the relationship: 6.7 ≤ TTL / ImgH ≤ 6.8. Furthermore, 6.732 ≤ TTL / ImgH ≤ 6.758. Specifically, TTL / ImgH can be 6.7, 6.71, 6.72, 6.73, 6.732, 6.74, 6.75, 6.758, 6.76, 6.77, 6.78, 6.79, 6.8, and so on. When the optical lens 100 satisfies the above relationship, by properly configuring the ratio of TTL to ImgH, the optical lens 100 can meet both high-pixel requirements and miniaturization requirements.

[0056] In some embodiments, the optical lens 100 satisfies the relationship: 0.05≤TTL / ImgH / FOV≤0.06. Furthermore, 0.053≤TTL / ImgH / FOV≤0.059. Specifically, TTL / ImgH / FOV can be 0.05, 0.051, 0.052, 0.053, 0.054, 0.055, 0.056, 0.057, 0.058, 0.059, 0.06, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of TTL, ImgH, and FOV, it is possible to meet the requirements of the optical lens 100 to adapt to a large-sized imaging surface IMG, while meeting the requirements of miniaturization of the optical lens 100, so that the optical lens 100 can simultaneously meet the requirements of a large imaging surface IMG and miniaturization.

[0057] In some embodiments, the optical lens 100 satisfies the relationship: 1.5 ≤ FNO ≤ 1.8. FNO is the aperture number of the optical lens 100. Furthermore, 1.6 ≤ FNO ≤ 1.7, and even more, 1.617 ≤ FNO ≤ 1.68. Specifically, FNO can be 1.5, 1.51, 1.53, 1.55, 1.57, 1.58, 1.59, 1.6, 1.61, 1.617, 1.63, 1.65, 1.66, 1.68, 1.69, 1.7, 1.71, 1.73, 1.75, 1.77, 1.78, 1.79, 1.8, and the like. When the optical lens 100 satisfies the above relationship, by reasonably configuring the FNO between 1.5 and 1.8, the optical lens 100 has the characteristics of a large aperture, and the optical lens 100 has a sufficient amount of light entering, which can make the image captured by the optical lens 100 clearer, and thus can be suitable for shooting high-quality night scenes, starry skies and other object space scenes with low brightness.

[0058] In some embodiments, the optical lens 100 satisfies the relationship: F2 / F ≤ -6. Furthermore, -117.629 ≤ F2 / F ≤ -6.755. Specifically, F2 / F can be -120, -117.629, -110, -100, -90, -80, -70, -60, -50, -40, -30, -20, -10, -9, -8, -7, -6.755, -6, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the effective focal length F2 of the second lens L2 to the effective focal length F of the optical lens 100, excessive spherical aberration introduced by the second lens L2 can be avoided and aberrations can be effectively corrected, thereby improving the resolving power of the optical lens 100.

[0059] In some embodiments, the optical lens 100 satisfies the relationship: -2.1 ≤ F5 / F ≤ -1.4. Furthermore, -2.002 ≤ F5 / F ≤ -1.413. Specifically, F5 / F can be -2.1, -2.05, -2.002, -2, -1.95, -1.9, -1.85, -1.8, -1.75, -1.7, -1.65, -1.6, -1.55, -1.5, -1.45, -1.413, -1.4, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the effective focal length F5 of the fifth lens element L5 to the effective focal length F of the optical lens element 100, the fifth lens element L5 can be prevented from introducing excessive spherical aberration and the aberration can be effectively corrected, thereby improving the resolving power of the optical lens element 100.

[0060] In some embodiments, the optical lens 100 satisfies the relationship: 4.5 ≤ |F6 / F| ≤ 30. F6 is the effective focal length of the sixth lens element L6. Furthermore, 4.709 ≤ |F6 / F| ≤ 29.057. Specifically, |F6 / F| can be 4.5, 4.709, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 21, 23, 25, 27, 29, 29.057, 30, and so on. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the effective focal length F6 of the sixth lens element L6 to the effective focal length F of the optical lens 100, excessive spherical aberration introduced by the sixth lens element L6 can be avoided and aberrations can be effectively corrected, thereby improving the resolving power of the optical lens 100.

[0061] In some embodiments, the optical lens 100 satisfies the relationship: F2 / CT2 ≤ -6. Furthermore, -108.628 ≤ F2 / CT2 ≤ -6.535. Specifically, F2 / CT2 can be -110, -108.628, -105, -100, -90, -80, -70, -60, -50, -40, -30, -20, -10, -9, -8, -7, -6.535, -6, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the effective focal length F2 of the second lens L2 to the thickness CT2 of the second lens L2, the deflection angle of the light in the optical lens 100 is effectively controlled, so that the light is smoothly projected after passing through the second lens L2, thereby reducing the field curvature and astigmatism of the optical lens 100, which is conducive to reducing the distortion of the optical lens 100.

[0062] In some embodiments, the optical lens 100 satisfies the relationship: 1.3 ≤ F3 / CT3 ≤ 7.1. Here, CT3 is the thickness of the third lens element L3 along the optical axis O. Furthermore, 1.373 ≤ F3 / CT3 ≤ 7.097. Specifically, F3 / CT3 can be 1.3, 1.373, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.3, 2.5, 2.7, 2.9, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7, 7.097, 7.1, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the effective focal length F3 of the third lens L3 to the thickness CT3 of the third lens L3, the light smoothly projected by the second lens L2 is converged, thereby reducing the decentering sensitivity of the optical lens 100, which is beneficial to improving the resolution of the optical lens 100.

[0063] In some embodiments, the optical lens 100 satisfies the relationship: 1.1 ≤ F4 / CT4 ≤ 2.8. Furthermore, 1.150 ≤ F4 / CT4 ≤ 2.748. Specifically, F4 / CT4 can be 1.1, 1.150, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.748, 2.8, etc. When the optical lens 100 satisfies the above relationship, rationally configuring the ratio of the effective focal length F4 of the fourth lens element L4 to the thickness CT4 of the fourth lens element L4 can help reduce chromatic aberration of the optical lens 100 and improve the resolution of the optical lens 100.

[0064] In some embodiments, the optical lens 100 satisfies the relationship: -9 ≤ F5 / CT5 ≤ -2. Furthermore, -8.458 ≤ F5 / CT5 ≤ -2.328. Specifically, F5 / CT5 can be -9, -8.5, -8.458, -8, -7.5, -7, -6.5, -6, -5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2.328, -2, etc. When the optical lens 100 satisfies the above relationship, by properly configuring the ratio of the effective focal length F5 of the fifth lens element L5 to the thickness CT5 of the fifth lens element L5, the fifth lens element L5 can effectively correct the aberrations caused by the deflection of light by the various lenses on the object side, thereby improving the resolving power of the optical lens 100.

[0065] In some embodiments, the optical lens 100 satisfies the relationship: 12 ≤ |F6 / CT6| ≤ 65. Furthermore, 12.458 ≤ |F6 / CT6| ≤ 62.657. Specifically, |F6 / CT6| can be 12, 12.458, 13, 14, 15, 16, 17, 18, 19, 20, 22, 24, 26, 28, 30, 35, 40, 45, 50, 55, 56, 57, 58, 59, 60, 61, 62, 62.657, 63, 64, 65, etc. When the optical lens 100 satisfies the above relationship, by properly configuring the ratio of the effective focal length F6 of the sixth lens element L6 to the thickness CT6 of the sixth lens element L6, the effective focal length of the sixth lens element L6 can be prevented from being too large, thereby preventing astigmatism that is difficult to correct. This helps improve the resolving power of the optical lens 100.

[0066] In some embodiments, the optical lens 100 satisfies the relationship: 1.6 ≤ R1 / R2 ≤ 1.85. Here, R1 is the radius of curvature of the object-side surface S1 of the first lens element L1 at the optical axis O, and R2 is the radius of curvature of the image-side surface S2 of the first lens element L1 at the optical axis O. Furthermore, 1.646 ≤ R1 / R2 ≤ 1.822. Specifically, R1 / R2 can be 1.6, 1.61, 1.62, 1.63, 1.64, 1.646, 1.65, 1.66, 1.67, 1.68, 1.69, 1.7, 1.71, 1.72, 1.73, 1.74, 1.75, 1.76, 1.77, 1.78, 1.79, 1.8, 1.81, 1.82, 1.822, 1.83, 1.84, 1.85, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the curvature radii of the object-side surface S1 and the image-side surface S2 of the first lens L1, the refractive power of the first lens L1 of the optical lens 100 is uniformly configured, and the effective aperture of the first lens L1 of the optical lens 100 is effectively controlled, which is conducive to achieving a large field of view of the optical lens 100.

[0067] In some embodiments, the optical lens 100 satisfies the relationship: 0.55 ≤ R3 / R4 ≤ 0.75. Furthermore, 0.580 ≤ R3 / R4 ≤ 0.733. Specifically, R3 / R4 can be 0.55, 0.56, 0.57, 0.58, 0.59, 0.6, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68, 0.69, 0.7, 0.71, 0.72, 0.73, 0.733, 0.74, 0.75, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of the radii of curvature of the object-side surface S3 and the image-side surface S4 of the second lens element L2, the refractive power of the second lens element L2 of the optical lens 100 is uniformly distributed, which helps reduce field curvature and astigmatism of the optical lens element 100 and reduces distortion.

[0068] In some embodiments, the optical lens 100 satisfies the relationship: -2 ≤ R7 / R8 ≤ -1. Here, R7 is the radius of curvature of the object-side surface S7 of the fourth lens element L4 at the optical axis O, and R8 is the radius of curvature of the image-side surface S8 of the fourth lens element L4 at the optical axis O. Furthermore, -1.976 ≤ R7 / R8 ≤ -1.002. Specifically, R7 / R8 can be -2, -1.976, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.002, -1, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the curvature radii of the object-side surface S7 and the image-side surface S8 of the fourth lens L4, the refractive power of the fourth lens L4 of the optical lens 100 is uniformly configured, which is beneficial to reducing chromatic aberration and spherical aberration, reducing the sensitivity of the optical lens 100 to performance changes, and improving the resolution capability.

[0069] In some embodiments, the optical lens 100 satisfies the relationship: |R9 / R10|≤0.4. R9 is the radius of curvature of the object-side surface S9 of the fifth lens element L5 at the optical axis O, and R10 is the radius of curvature of the image-side surface S10 of the fifth lens element L5 at the optical axis O. Furthermore, 0.036≤|R9 / R10|≤0.038. Specifically, |R9 / R10| can be 0.001, 0.036, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.38, 0.4, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of the curvature radii of the object-side surface S9 and the image-side surface S10 of the fifth lens element L5, the refractive power of the fifth lens element L5 of the optical lens 100 is uniformly distributed, which is beneficial for correcting the distortion and aberration produced by the first lens element L1, the second lens element L2, the third lens element L3 and the fourth lens element L4, reducing the sensitivity of the optical lens element 100 to performance changes, and improving the resolving power of the optical lens element 100.

[0070] In some embodiments, the optical lens 100 satisfies the relationship: 0.55≤CT1 / ET1≤0.7. ET1 is the distance from the maximum effective aperture of the object-side surface S1 of the first lens L1 to the maximum effective aperture of the image-side surface S2 of the first lens L1 in the direction of the optical axis O. Furthermore, 0.56≤CT1 / ET1≤0.69. Specifically, CT1 / ET1 can be 0.55, 0.56, 0.57, 0.58, 0.59, 0.6, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68, 0.69, 0.7, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of CT1 to ET1 and rationally controlling the ratio of the center thickness to the edge thickness of the first lens L1, the overall thickness of the first lens L1 can be made reasonable, which is conducive to achieving a miniaturized design of the optical lens 100.

[0071] In some embodiments, the optical lens 100 satisfies the relationship: 0.95 ≤ CT2 / ET2 ≤ 1. Furthermore, 0.96 ≤ CT2 / ET2 ≤ 0.98. Specifically, CT2 / ET2 can be 0.95, 0.96, 0.965, 0.97, 0.985, 0.98, 0.99, 1, etc. When the optical lens 100 satisfies the above relationship, by properly configuring the ratio of CT2 to ET2 and properly controlling the ratio of the center thickness to the edge thickness of the second lens element L2, the overall thickness of the second lens element L2 can be made reasonable, which facilitates the miniaturization of the optical lens 100.

[0072] In some embodiments, the optical lens 100 satisfies the relationship: 1.1 ≤ CT3 / ET3 ≤ 1.95. ET3 is the distance from the maximum effective aperture of the object-side surface S5 of the third lens element L3 to the maximum effective aperture of the image-side surface S6 of the third lens element L3 along the optical axis O. Furthermore, 1.114 ≤ CT3 / ET3 ≤ 1.926. Specifically, CT3 / ET3 can be 1.1, 1.114, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.926, 1.95, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of CT3 to ET3 and reasonably controlling the ratio of the center thickness to the edge thickness of the third lens L3, the overall thickness of the third lens L3 is made reasonable, which is conducive to achieving a miniaturized design of the optical lens 100.

[0073] In some embodiments, the optical lens 100 satisfies the relationship: 0.45 ≤ CT5 / ET5 ≤ 0.91. ET5 is the distance from the maximum effective aperture of the object-side surface S9 of the fifth lens element L5 to the maximum effective aperture of the image-side surface S10 of the fifth lens element L5 in the direction of the optical axis O. Furthermore, 0.488 ≤ CT5 / ET5 ≤ 0.905. Specifically, CT5 / ET5 can be 0.45, 0.488, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.905, 0.91, etc. When the optical lens 100 satisfies the above relationship, by properly configuring the ratio of CT5 to ET5 and properly controlling the ratio of the center thickness to the edge thickness of the fifth lens element L5, the overall thickness of the fifth lens element L5 can be made reasonable, facilitating bonding of the fifth lens element L5 with the fourth lens element L4 while also achieving a compact design of the optical lens 100.

[0074] In some embodiments, the optical lens 100 satisfies the relationship: 1≤CT6 / ET6≤1.4. ET6 is the distance from the maximum effective aperture of the object-side surface S11 of the sixth lens L6 to the maximum effective aperture of the image-side surface S12 of the sixth lens L6 in the direction of the optical axis O. Furthermore, 1.047≤CT6 / ET6≤1.385. Specifically, CT6 / ET6 can be 1, 1.047, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.385, 1.4, etc. When the optical lens 100 satisfies the above relationship, by rationally configuring the ratio of CT6 to ET6 and rationally controlling the ratio of the center thickness to the edge thickness of the sixth lens L6, the overall thickness of the sixth lens L6 can be made reasonable, which is conducive to achieving a miniaturized design of the optical lens 100.

[0075] The surface shape of each aspheric lens can be defined using, but not limited to, the following aspheric formula:

[0076]

[0077] Where Z is the distance from the corresponding point on the aspheric surface to the plane tangent to the vertex of the surface, c is the curvature of the aspheric vertex, c = 1 / Y, Y is the radius of curvature (i.e., the paraxial curvature c is the reciprocal of the Y radius in Table 1), r is the distance from any point on the aspheric surface to the optical axis O, k is the cone constant, and Ai is the coefficient corresponding to the i-th higher-order term in the aspheric surface shape formula.

[0078] The optical lens 100 of this embodiment will be described in detail below with reference to specific parameters.

[0079] First embodiment

[0080] The structural diagram of the optical lens 100 disclosed in the first embodiment of the present application is as follows: Figure 1 As shown, the optical lens 100 includes a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR and a protective glass CG, which are arranged in sequence from the object side to the image side along the optical axis O.

[0081] Furthermore, the first lens L1 has negative refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has positive refractive power.

[0082] Furthermore, the object-side surface S1 of the first lens L1 is convex at the near optical axis O, and the image-side surface S2 of the first lens L1 is concave at the near optical axis O; the object-side surface S3 of the second lens L2 is concave at the near optical axis O, and the image-side surface S4 of the second lens L2 is convex at the near optical axis O; the object-side surface S5 of the third lens L3 is convex at the near optical axis O, and the image-side surface S6 of the third lens L3 is convex at the near optical axis O; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis O, and the image-side surface S8 of the fourth lens L4 is convex at the near optical axis O; the object-side surface S9 of the fifth lens L5 is concave at the near optical axis O, and the image-side surface S10 of the fifth lens L5 is convex at the near optical axis O; the object-side surface S11 of the sixth lens L6 is convex at the near optical axis O, and the image-side surface S12 of the sixth lens L6 is concave at the near optical axis O.

[0083] Specifically, the Y radius in Table 1a is the radius of curvature of the object-side or image-side surface of the corresponding surface number at optical axis O. The first value in the "Thickness" column for a lens is the thickness of the lens on optical axis O, and the second value is the distance from the image-side surface to the next surface on optical axis O. The value for the aperture STO in the "Thickness" column is the distance from the aperture STO to the vertex of the next surface on optical axis O (the vertex refers to the intersection of the surface with optical axis O). The direction from the object-side surface S1 of the first lens L1 to the image-side surface S12 of the last lens is assumed to be the positive direction of optical axis O. A negative value indicates that the aperture STO is located on the image side of the next vertex. A positive value for the aperture STO thickness indicates that the aperture STO is located on the object side of the next vertex. It should be understood that the units of the Y radius, thickness, and effective focal length in Table 1a are all in mm. The reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 1a is 558 nm.

[0084] In the first embodiment, the object-side surface and image-side surface of the first lens element L1 and the sixth lens element L6 are both aspherical surfaces. Table 1b shows the conic constant k and the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 that can be used for each aspherical mirror surface in the first embodiment.

[0085] Table 1a

[0086]

[0087]

[0088] Table 1b

[0089]

[0090] See also Figure 2 (A) in Figure 2(A) shows the longitudinal spherical aberration diagram of the optical lens 100 in the first embodiment at wavelengths of 661nm, 614nm, 558nm, 502nm, and 435nm. The horizontal axis along the X-axis represents the focus offset in mm, and the vertical axis along the Y-axis represents the normalized field of view. Figure 2 As can be seen from (A) in FIG, the spherical aberration value of the optical lens 100 in the first embodiment is better, indicating that the imaging quality of the optical lens 100 in this embodiment is better. Figure 2 (B) in Figure 2 (B) in the figure shows the astigmatism diagram of the optical lens 100 in the first embodiment at a wavelength of 558 nm. The horizontal axis along the X-axis represents the focus offset in mm, and the vertical axis along the Y-axis represents the field angle in degrees. In the astigmatism diagram, T represents the curvature of the imaging surface IMG in the sub-arc direction, and S represents the curvature of the imaging surface IMG in the sagittal direction. Figure 2 As can be seen from (B) in FIG, at this wavelength, the astigmatism of the optical lens 100 is well compensated. Figure 2 (C) in Figure 2 (C) in FIG. 1 shows a distortion curve of the optical lens 100 in the first embodiment at a wavelength of 558 nm. The horizontal axis along the X-axis represents the distortion, and the vertical axis along the Y-axis represents the field of view, with the unit being deg. Figure 2 As can be seen from (C) in FIG. 1 , at this wavelength, the distortion of the optical lens 100 is well corrected.

[0091] Second embodiment

[0092] The structural diagram of the optical lens 100 disclosed in the second embodiment of the present application is as follows: Figure 3 As shown, the optical lens 100 includes a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR and a protective glass CG, which are arranged in sequence from the object side to the image side along the optical axis O.

[0093] Furthermore, the first lens L1 has negative refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has positive refractive power.

[0094] Furthermore, the object-side surface S1 of the first lens L1 is convex at the near optical axis O, and the image-side surface S2 of the first lens L1 is concave at the near optical axis O; the object-side surface S3 of the second lens L2 is concave at the near optical axis O, and the image-side surface S4 of the second lens L2 is convex at the near optical axis O; the object-side surface S5 of the third lens L3 is convex at the near optical axis O, and the image-side surface S6 of the third lens L3 is convex at the near optical axis O; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis O, and the image-side surface S8 of the fourth lens L4 is convex at the near optical axis O; the object-side surface S9 of the fifth lens L5 is concave at the near optical axis O, and the image-side surface S10 of the fifth lens L5 is convex at the near optical axis O; the object-side surface S11 of the sixth lens L6 is convex at the near optical axis O, and the image-side surface S12 of the sixth lens L6 is concave at the near optical axis O.

[0095] The other parameters of the second embodiment are given in Table 2a below. The definitions of each parameter can be found in the description of the previous embodiment and are not repeated here. It should be understood that the units of the Y radius, thickness, and effective focal length in Table 2a are all in mm. The reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 2a is 588 nm.

[0096] In the second embodiment, the object-side surface and image-side surface of the first lens element L1 and the sixth lens element L6 are both aspherical surfaces. Table 2b shows the conic constant k and the higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 of the aspherical mirror surfaces that can be used in the second embodiment.

[0097] Table 2a

[0098]

[0099] Table 2b

[0100]

[0101]

[0102] See also Figure 4 ,Depend on Figure 4 As can be seen from the longitudinal spherical aberration diagram (A), astigmatism diagram (B), and distortion curve diagram (C), the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 in the second embodiment are well controlled, so that the optical lens 100 of this embodiment has good imaging quality. Figure 4 (A) Figure 4 Middle (B) and Figure 4 The wavelengths corresponding to the curves in (C) can be referred to the wavelengths in the first embodiment. Figure 2 (A) in Figure 2 (B) in Figure 2The contents described in (C) will not be repeated here.

[0103] Third embodiment

[0104] The structural diagram of the optical lens 100 disclosed in the third embodiment of the present application is as follows: Figure 5 As shown, the optical lens 100 includes a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR and a protective glass CG, which are arranged in sequence from the object side to the image side along the optical axis O.

[0105] Furthermore, the first lens L1 has negative refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has positive refractive power.

[0106] Furthermore, the object-side surface S1 of the first lens L1 is convex at the near optical axis O, and the image-side surface S2 of the first lens L1 is concave at the near optical axis O; the object-side surface S3 of the second lens L2 is concave at the near optical axis O, and the image-side surface S4 of the second lens L2 is convex at the near optical axis O; the object-side surface S5 of the third lens L3 is convex at the near optical axis O, and the image-side surface S6 of the third lens L3 is convex at the near optical axis O; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis O, and the image-side surface S8 of the fourth lens L4 is convex at the near optical axis O; the object-side surface S9 of the fifth lens L5 is concave at the near optical axis O, and the image-side surface S10 of the fifth lens L5 is convex at the near optical axis O; the object-side surface S11 of the sixth lens L6 is convex at the near optical axis O, and the image-side surface S12 of the sixth lens L6 is concave at the near optical axis O.

[0107] The other parameters of the third embodiment are given in Table 3a below. The definitions of each parameter can be found in the description of the previous embodiment and are not repeated here. It should be understood that the units of the Y radius, thickness, and effective focal length in Table 3a are all in mm. The reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 3a is 588 nm.

[0108] In the third embodiment, the object-side surface and image-side surface of the first lens element L1 and the sixth lens element L6 are both aspherical surfaces. Table 3b shows the conic constant k and the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 that can be used for each aspherical mirror surface in the third embodiment.

[0109] Table 3a

[0110]

[0111]

[0112] Table 3b

[0113]

[0114] See also Figure 6 ,Depend on Figure 6 As can be seen from the longitudinal spherical aberration diagram (A), astigmatism diagram (B), and distortion curve diagram (C), the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 in the third embodiment are well controlled, so that the optical lens 100 of this embodiment has good imaging quality. Figure 6 (A) Figure 6 Middle (B) and Figure 6 The wavelengths corresponding to the curves in (C) can be referred to the wavelengths in the first embodiment. Figure 2 (A) in Figure 2 (B) in Figure 2 The contents described in (C) will not be repeated here.

[0115] Fourth embodiment

[0116] The structural diagram of the optical lens 100 disclosed in the fourth embodiment of the present application is as follows: Figure 7 As shown, the optical lens 100 includes a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR and a protective glass CG, which are arranged in sequence from the object side to the image side along the optical axis O.

[0117] Furthermore, the first lens L1 has negative refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has positive refractive power.

[0118] Furthermore, the object-side surface S1 of the first lens L1 is convex at the near optical axis O, and the image-side surface S2 of the first lens L1 is concave at the near optical axis O; the object-side surface S3 of the second lens L2 is concave at the near optical axis O, and the image-side surface S4 of the second lens L2 is convex at the near optical axis O; the object-side surface S5 of the third lens L3 is convex at the near optical axis O, and the image-side surface S6 of the third lens L3 is convex at the near optical axis O; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis O, and the image-side surface S8 of the fourth lens L4 is convex at the near optical axis O; the object-side surface S9 of the fifth lens L5 is concave at the near optical axis O, and the image-side surface S10 of the fifth lens L5 is convex at the near optical axis O; the object-side surface S11 of the sixth lens L6 is convex at the near optical axis O, and the image-side surface S12 of the sixth lens L6 is concave at the near optical axis O.

[0119] The other parameters of the fourth embodiment are given in Table 4a below. The definitions of each parameter can be found in the description of the previous embodiment and are not repeated here. It should be understood that the units of the Y radius, thickness, and effective focal length in Table 4a are all in mm. The reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 4a is 588 nm.

[0120] In the fourth embodiment, the object-side surface and the image-side surface of the first lens element L1 and the sixth lens element L6 are both aspherical surfaces. Table 4b shows the conic constant k and the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical mirror surfaces that can be used in the fourth embodiment.

[0121] Table 4a

[0122]

[0123]

[0124] Table 4b

[0125]

[0126] See also Figure 8 ,Depend on Figure 8 As can be seen from the longitudinal spherical aberration diagram (A), astigmatism diagram (B), and distortion curve diagram (C), the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 in the fourth embodiment are well controlled, so that the optical lens 100 of this embodiment has good imaging quality. Figure 8 (A) Figure 8 Middle (B) and Figure 8 The wavelengths corresponding to the curves in (C) can be referred to the wavelengths in the first embodiment. Figure 2 (A) in Figure 2 (B) in Figure 2 The contents described in (C) will not be repeated here.

[0127] Fifth embodiment

[0128] The structural diagram of the optical lens 100 disclosed in the fifth embodiment of the present application is as follows: Figure 9 As shown, the optical lens 100 includes a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR and a protective glass CG, which are arranged in sequence from the object side to the image side along the optical axis O.

[0129] Furthermore, the first lens L1 has negative refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has negative refractive power.

[0130] Furthermore, the object-side surface S1 of the first lens L1 is convex at the near optical axis O, and the image-side surface S2 of the first lens L1 is concave at the near optical axis O; the object-side surface S3 of the second lens L2 is concave at the near optical axis O, and the image-side surface S4 of the second lens L2 is convex at the near optical axis O; the object-side surface S5 of the third lens L3 is convex at the near optical axis O, and the image-side surface S6 of the third lens L3 is concave at the near optical axis O; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis O, and the image-side surface S8 of the fourth lens L4 is convex at the near optical axis O; the object-side surface S9 of the fifth lens L5 is concave at the near optical axis O, and the image-side surface S10 of the fifth lens L5 is convex at the near optical axis O; the object-side surface S11 of the sixth lens L6 is convex at the near optical axis O, and the image-side surface S12 of the sixth lens L6 is concave at the near optical axis O.

[0131] The other parameters of the fifth embodiment are given in Table 5a below. The definitions of each parameter can be found in the description of the previous embodiment and are not repeated here. It should be understood that the units of the Y radius, thickness, and effective focal length in Table 5a are all in mm. The reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 5a is 588 nm.

[0132] In the fifth embodiment, the object-side surface and image-side surface of the first lens element L1 and the sixth lens element L6 are both aspherical surfaces. Table 5b shows the conic constant k and the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical mirror surfaces that can be used in the fifth embodiment.

[0133] Table 5a

[0134]

[0135] Table 5b

[0136]

[0137] See also Figure 10 ,Depend on Figure 10 As can be seen from the longitudinal spherical aberration diagram (A), astigmatism diagram (B), and distortion curve diagram (C), the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 in the fifth embodiment are well controlled, so that the optical lens 100 of this embodiment has good imaging quality. Figure 10 (A) Figure 10 Middle (B) and Figure 10The wavelengths corresponding to the curves in (C) can be referred to the wavelengths in the first embodiment. Figure 2 (A) in Figure 2 (B) in Figure 2 The contents described in (C) will not be repeated here.

[0138] Sixth embodiment

[0139] The structural diagram of the optical lens 100 disclosed in the sixth embodiment of the present application is as follows: Figure 11 As shown, the optical lens 100 includes a first lens L1, a second lens L2, an aperture STO, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR and a protective glass CG, which are arranged in sequence from the object side to the image side along the optical axis O.

[0140] Furthermore, the first lens L1 has negative refractive power, the second lens L2 has negative refractive power, the third lens L3 has positive refractive power, the fourth lens L4 has positive refractive power, the fifth lens L5 has negative refractive power, and the sixth lens L6 has positive refractive power.

[0141] Furthermore, the object-side surface S1 of the first lens L1 is convex at the near optical axis O, and the image-side surface S2 of the first lens L1 is concave at the near optical axis O; the object-side surface S3 of the second lens L2 is concave at the near optical axis O, and the image-side surface S4 of the second lens L2 is convex at the near optical axis O; the object-side surface S5 of the third lens L3 is convex at the near optical axis O, and the image-side surface S6 of the third lens L3 is convex at the near optical axis O; the object-side surface S7 of the fourth lens L4 is convex at the near optical axis O, and the image-side surface S8 of the fourth lens L4 is convex at the near optical axis O; the object-side surface S9 of the fifth lens L5 is concave at the near optical axis O, and the image-side surface S10 of the fifth lens L5 is concave at the near optical axis O; the object-side surface S11 of the sixth lens L6 is convex at the near optical axis O, and the image-side surface S12 of the sixth lens L6 is concave at the near optical axis O.

[0142] The other parameters of the sixth embodiment are given in Table 6a below. The definitions of each parameter can be found in the description of the previous embodiment and are not repeated here. It should be understood that the units of the Y radius, thickness, and effective focal length in Table 6a are all in mm. The reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 6a is 588 nm.

[0143] In the sixth embodiment, the object-side surface and image-side surface of the first lens element L1 and the sixth lens element L6 are both aspherical surfaces. Table 6b shows the conic constant k and the higher-order coefficients A4, A6, A8, A10, A12, A14, A16, A18, and A20 of the aspherical mirror surfaces that can be used in the sixth embodiment.

[0144] Table 6a

[0145]

[0146] Table 6b

[0147]

[0148]

[0149] See also Figure 12 ,Depend on Figure 12 As can be seen from the longitudinal spherical aberration diagram (A), astigmatism diagram (B), and distortion curve diagram (C), the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 in the sixth embodiment are well controlled, so that the optical lens 100 of this embodiment has good imaging quality. Figure 12 (A) Figure 12 Middle (B) and Figure 12 The wavelengths corresponding to the curves in (C) can be referred to the wavelengths in the first embodiment. Figure 2 (A) in Figure 2 (B) in Figure 2 The contents described in (C) will not be repeated here.

[0150] Table 7 shows the FOV, TTL / F, TTL / SD1, F / ImgH, F1 / F, F3 / F, F4 / F, F1 / CT1, SAGS2 / CT1, SD1 / ImgH, SD7 / SD6, CT4 / CT5, F5 / F4, R3 / (R4+CT2), |(Vd4-Vd5) / F45|, F45 / F, CT4 / ET4, |R5 / R6|, R11 / R12, CT6 / CT56, The values ​​of F*tan(FOV / 2) / ImgH, arctan(1 / K12), TTL / ImgH, TTL / ImgH / FOV, FNO, F2 / F, F5 / F, |F6 / F|, F2 / CT2, F3 / CT3, F4 / CT4, F5 / CT5, |F6 / CT6|, R1 / R2, R3 / R4, R7 / R8, |R9 / R10|, CT1 / ET1, CT2 / ET2, CT3 / ET3, CT5 / ET5 and CT6 / ET6.

[0151] Table 7

[0152]

[0153]

[0154] See also Figure 13, the embodiment of the present application also discloses a camera module 200, which includes a photosensitive chip 201 and the above-mentioned optical lens 100, and the photosensitive chip 201 is arranged on the image side of the optical lens 100. The optical lens 100 is used to receive the light signal of the subject and project it to the photosensitive chip 201, and the photosensitive chip 201 is used to convert the light signal corresponding to the subject into an image signal, which will not be described in detail here. It can be understood that the camera module 200 with the above-mentioned optical lens 100 also has all the technical effects of the above-mentioned optical lens 100, that is, it can meet the requirements of large field of view, high resolution and miniaturization.

[0155] See also Figure 14 The present application also discloses a terminal device 300, comprising a housing 301 and the aforementioned camera module 200, with the camera module 200 disposed within the housing 300. The terminal device 300 may be, but is not limited to, an automobile, a mobile phone, a tablet computer, a laptop computer, a smartwatch, a monitor, and the like. It is understood that the terminal device 300 having the aforementioned camera module 200 also possesses all the technical benefits of the aforementioned optical lens 100, namely, it can meet the requirements of a large field of view, high resolution, and miniaturization.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An optical lens, characterized in that: There are six lenses with refractive power, including the following from the object side to the image side along the optical axis: a first lens having negative refractive power, wherein the object-side surface of the first lens is convex at the near optical axis, and the image-side surface of the first lens is concave at the near optical axis; a second lens element having negative refractive power, wherein the object-side surface of the second lens element is concave at the near optical axis, and the image-side surface of the second lens element is convex at the near optical axis; a third lens element having positive refractive power, wherein the object side surface of the third lens element is convex at the near optical axis; a fourth lens element having positive refractive power, wherein the object-side surface of the fourth lens element is convex at the near optical axis, and the image-side surface of the fourth lens element is convex at the near optical axis; a fifth lens element having negative refractive power, wherein the object-side surface of the fifth lens element is concave at the near optical axis; a sixth lens element having refractive power, wherein the object-side surface of the sixth lens element is convex near the optical axis, and the image-side surface of the sixth lens element is concave near the optical axis; The optical lens satisfies the following relationship: 115°≤FOV≤130°, 4.8≤TTL / F≤5.5, 1.4≤CT4 / ET4≤2.7, 4.5≤|F6 / F|≤30; Among them, FOV is the maximum field of view of the optical lens, TTL is the distance from the object side surface of the first lens to the imaging surface of the optical lens on the optical axis, F is the effective focal length of the optical lens, CT4 is the thickness of the fourth lens on the optical axis, ET4 is the distance from the maximum effective aperture of the object side surface of the fourth lens to the maximum effective aperture of the image side surface of the fourth lens in the optical axis direction, and F6 is the effective focal length of the sixth lens.

2. The optical lens according to claim 1, wherein: The optical lens satisfies the following relationship: 6.5≤TTL / SD1≤7.2, and / or, 1.24≤F / ImgH≤1.4; Wherein, SD1 is half of the maximum effective aperture of the object side of the first lens, and ImgH is half of the image height corresponding to the maximum field angle of the optical lens.

3. The optical lens according to claim 1, wherein: The optical lens satisfies the following relationship: -2.1≤F1 / F≤-1.7, and / or, 1.9≤F3 / F≤2.2, and / or, 1≤F4 / F≤1.4; Wherein, F1 is the effective focal length of the first lens, F3 is the effective focal length of the third lens, and F4 is the effective focal length of the fourth lens.

4. The optical lens according to claim 1, wherein: The optical lens satisfies the following relationship: -11≤F1 / CT1≤-8, and / or, 1.3≤SAGS2 / CT1≤1.6, and / or, 0.95≤SD1 / ImgH≤1.05; Among them, F1 is the effective focal length of the first lens, CT1 is the thickness of the first lens on the optical axis, SAGS2 is the sag of the edge of the optical effective diameter of the image side surface of the first lens, SD1 is half of the maximum effective aperture of the object side surface of the first lens, and ImgH is half of the image height corresponding to the maximum field of view angle of the optical lens.

5. The optical lens according to claim 1, wherein: The optical lens satisfies the following relationship: 0.8≤SD7 / SD6≤1.2, and / or, 0.5≤CT4 / CT5≤4.62, and / or, -2≤F5 / F4≤-1; Among them, SD6 is half of the maximum effective aperture of the image side of the third lens, SD7 is half of the maximum effective aperture of the object side of the fourth lens, CT5 is the thickness of the fifth lens on the optical axis, F4 is the effective focal length of the fourth lens, and F5 is the effective focal length of the fifth lens.

6. The optical lens according to claim 1, wherein: The optical lens satisfies the following relationship: 0.95≤R3 / (R4+CT2)≤1.7, and / or, 1.6mm -1 ≤|(Vd4-Vd5) / F45|≤3.4mm -1 , and / or, 2.9≤F45 / F≤6.2; Wherein, R3 is the radius of curvature of the object-side surface of the second lens at the optical axis, R4 is the radius of curvature of the image-side surface of the second lens at the optical axis, CT2 is the thickness of the second lens on the optical axis, Vd4 is the Abbe number of the fourth lens, Vd5 is the Abbe number of the fifth lens, and F45 is the combined effective focal length of the fourth lens and the fifth lens.

7. The optical lens according to claim 1, wherein: The optical lens satisfies the following relationship: |R5 / R6|≤0.55, and / or, 0.3≤R11 / R12≤1.4; Among them, R5 is the curvature radius of the object side surface of the third lens at the optical axis, R6 is the curvature radius of the image side surface of the third lens at the optical axis, R11 is the curvature radius of the object side surface of the sixth lens at the optical axis, and R12 is the curvature radius of the image side surface of the sixth lens at the optical axis.

8. The optical lens according to claim 1, wherein: The optical lens satisfies the following relationship: 1.3≤CT6 / CT56≤33, and / or, 2.1≤F*tan(FOV / 2) / ImgH≤2.55, and / or, -63≤arctan(1 / K12)≤-57; Among them, CT6 is the thickness of the sixth lens on the optical axis, CT56 is the distance between the image side surface of the fifth lens and the object side surface of the sixth lens on the optical axis, ImgH is half of the image height corresponding to the maximum field of view of the optical lens, and K12 is the edge slope of the image side surface of the sixth lens corresponding to the maximum field of view of the optical lens.

9. A camera module, characterized in that: The camera module includes a photosensitive chip and an optical lens according to any one of claims 1 to 8, and the photosensitive chip is arranged on the image side of the optical lens.

10. A terminal device, characterized in that: It comprises a shell and a camera module as claimed in claim 9, wherein the camera module is arranged in the shell.

Images