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 and the image side surface of which are convex and concave respectively at the near optical axis; a second lens with negative refractive power, the image side surface of which is concave at the near optical axis; a third lens with positive refractive power, the object side surface and the image side surface of which are both convex at the near optical axis; a fourth lens with positive refractive power, the object side surface and the image side surface of which are both convex at the near optical axis; a fifth lens with negative refractive power, the object side surface and the image side surface of which are both concave at the near optical axis; and a sixth lens with positive refractive power, the object side surface and the image side surface of which are both convex at the near optical axis. The optical lens satisfies the following relationship: 160°≤FOV≤190°; 1.8≤FNO≤2.2. The optical lens meets the requirements of miniaturization, large aperture and wide field of view.

Description

TECHNICAL FIELD

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

[0002] With the rapid development of the automobile industry, users' performance requirements for vehicle-mounted cameras are increasing. With the continuous progress of semiconductor technology, core components such as image sensors are gradually developing towards miniaturization and high pixels, and camera devices carrying these core components are also miniaturized. At the same time, with the emphasis on safety performance in the automobile industry, front-view lenses can effectively reduce the blind area of the vehicle's field of view, thereby reducing the incidence of traffic accidents and improving driving safety. However, the commonly used vehicle-mounted rear-view imaging lens currently usually adopts a structure design of 6 or more lenses, which not only has a high cost, but also has significant limitations in miniaturization. Therefore, there is an urgent need for an optical lens with miniaturization, large aperture and wide field of view. SUMMARY

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

[0004] To achieve the above-mentioned purpose, in a first aspect, the present application discloses an optical lens, which has a total of six lenses with refractive power, and comprises in order from the object side to the image side along the optical axis: a first lens with negative refractive power, 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 with negative refractive power, the image side surface of the second lens is concave at the near optical axis; a third lens with positive refractive power, the object side surface of the third lens is convex at the near optical axis, and the image side surface of the third lens is convex at the near optical axis; a fourth lens with positive refractive power, the object side surface of the fourth lens is convex at the near optical axis, and the image side surface of the fourth lens is convex at the near optical axis; a fifth lens with negative refractive power, the object side surface of the fifth lens is concave at the near optical axis, and the image side surface of the fifth lens is concave at the near optical axis; and a sixth lens with positive 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 convex at the near optical axis; the optical lens satisfies the following relationship: 160°≤FOV≤190°; 1.8≤FNO≤2.2; wherein FOV is the maximum field of view of the optical lens, and FNO is the aperture number of the optical lens.

[0005] The optical lens provided in the application has a first lens with negative refractive power, which is matched with a convex object side surface at the near optical axis and a concave image side surface at the near optical axis, thereby being beneficial to expanding the light collection range of the optical lens, and also being beneficial to the sliding of water drops on the object side surface of the optical lens, thereby reducing the influence of bad weather such as rain and snow on the imaging quality of the optical lens; the optical lens has a second lens with negative refractive power, which is matched with a concave image side surface at the near optical axis, thereby being beneficial to assisting the first lens in converging light rays and being beneficial to correcting aberration generated by the first lens; the optical lens has a third lens with positive refractive power, which is matched with a convex object side surface at the near optical axis and a convex image side surface at the near optical axis, thereby being beneficial to converging light rays projected by the second lens and making the light rays smoothly transition to a cemented lens composed of a fourth lens and a fifth lens, being beneficial to correcting the curvature of field of the optical lens, and improving the imaging optical quality of the optical lens; the optical lens has a fourth lens with positive refractive power, which can be well cemented with a fifth lens with negative refractive power to form a cemented lens, the fourth lens and the fifth lens are combined in a positive-negative lens combination, thereby being beneficial to correcting aberration of the optical lens, shortening the total optical length of the optical lens, and being beneficial to realizing miniaturization design; the optical lens has a sixth lens with positive refractive power, which is matched with a convex object side surface at the near optical axis and a convex image side surface at the near optical axis, thereby being beneficial to correcting edge field aberration of the optical lens and improving the imaging optical quality of the optical lens.

[0006] When the optical lens satisfies 160°≤FOV≤190°, the optical lens has a large field of view angle, and the optical lens has a wide field of view range, thereby obtaining more abundant information of a photographed object, satisfying good optical performance and high imaging optical quality; when the optical lens satisfies 1.8≤FNO≤2.2, the optical lens has a large aperture, and the optical lens has sufficient light amount, thereby making the image photographed by the optical lens clearer, and thereby being applicable to photographing high-quality night scenes or photographing in a space scene with low brightness. Therefore, the optical lens provided in the application satisfies the requirements of miniaturization, large aperture, and wide field of view.

[0007] In a second aspect, the application discloses a camera module, which comprises a photosensitive chip and the optical lens as described in the first aspect, and the photosensitive chip is arranged on the image side of the optical lens. The camera module with the optical lens can satisfy the requirements of miniaturization, large aperture, and wide field of view.

[0008] In a third aspect, the application discloses a terminal device, which comprises a shell and the camera module as described in the second aspect, and the camera module is arranged in the shell. The terminal device with the camera module can satisfy the requirements of miniaturization, large aperture, and wide field of view. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 FIG. 1 is a structural schematic diagram of an optical lens according to a first embodiment of the application.

[0010] Figure 2 is a longitudinal spherical aberration curve, a lateral aberration curve and a distortion curve of the optical lens disclosed by the first embodiment of the present application.

[0011] Figure 3 is a structure schematic diagram of the optical lens disclosed by the second embodiment of the present application.

[0012] Figure 4 is a longitudinal spherical aberration curve, a lateral aberration curve and a distortion curve of the optical lens disclosed by the second embodiment of the present application.

[0013] Figure 5 is a structure schematic diagram of the optical lens disclosed by the third embodiment of the present application.

[0014] Figure 6 is a longitudinal spherical aberration curve, a lateral aberration curve and a distortion curve of the optical lens disclosed by the third embodiment of the present application.

[0015] Figure 7 is a structure schematic diagram of the optical lens disclosed by the fourth embodiment of the present application.

[0016] Figure 8 is a longitudinal spherical aberration curve, a lateral aberration curve and a distortion curve of the optical lens disclosed by the fourth embodiment of the present application.

[0017] Figure 9 is a structure schematic diagram of the optical lens disclosed by the fifth embodiment of the present application.

[0018] Figure 10 is a longitudinal spherical aberration curve, a lateral aberration curve and a distortion curve of the optical lens disclosed by the fifth embodiment of the present application.

[0019] Figure 11 is a structure schematic diagram of the optical lens disclosed by the sixth embodiment of the present application.

[0020] Figure 12 is a longitudinal spherical aberration curve, a lateral aberration curve and a distortion curve of the optical lens disclosed by the sixth embodiment of the present application.

[0021] Figure 13 is a structure schematic diagram of the camera module disclosed by the present application.

[0022] Figure 14 is a structure schematic diagram of the terminal device disclosed by the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the protection scope of the present application.

[0024] Please refer to Figure 1 The optical lens 100 disclosed in the embodiments of the present application comprises six lenses with refractive power, which are sequentially arranged along the optical axis O from the object side to the image side as 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 sequentially from the object side of the first lens L1, and finally form an image on the imaging surface IMG of the optical lens 100.

[0025] Further, 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.

[0026] Further, the object side surface S1 of the first lens L1 is convex at the vicinity of the optical axis O, the image side surface S2 of the first lens L1 is concave at the vicinity of the optical axis O; the image side surface S4 of the second lens L2 is concave at the vicinity of the optical axis O; the object side surface S5 of the third lens L3 is convex at the vicinity of the optical axis O, the image side surface S6 of the third lens L3 is convex at the vicinity of the optical axis O; the object side surface S7 of the fourth lens L4 is convex at the vicinity of the optical axis O, the image side surface S8 of the fourth lens L4 is convex at the vicinity of the optical axis O; the object side surface S9 of the fifth lens L5 is concave at the vicinity of the optical axis O, the image side surface S10 of the fifth lens L5 is concave at the vicinity of the optical axis O; the object side surface S11 of the sixth lens L6 is convex at the vicinity of the optical axis O, and the image side surface S12 of the sixth lens L6 is convex at the vicinity of the optical axis O.

[0027] In the optical lens 100 provided in the application, the first lens L1 with negative refractive power is matched with the object side S1 which is convex at the near optical axis O and the image side S2 which is concave at the near optical axis O, which is beneficial to expand the light collecting range of the optical lens 100, and also beneficial to the sliding of water drops on the object side S1 of the optical lens 100, thereby reducing the influence of bad weather such as rain and snow on the imaging quality of the optical lens 100; the second lens L2 with negative refractive power is matched with the image side S4 which is concave at the near optical axis O, which is beneficial to assist the first lens L1 to converge light rays and correct the aberration generated by the first lens L1; the third lens L3 with positive refractive power is matched with the object side S5 which is convex at the near optical axis O and the image side S6 which is convex at the near optical axis O, which is beneficial to converge the light rays projected by the second lens L2 and make the light rays smoothly transition to the cemented lens composed of the fourth lens L4 and the fifth lens L5 after cementing, which is beneficial to correct the field curvature of the optical lens 100 and improve the imaging optical quality of the optical lens 100; the fourth lens L4 with positive refractive power can be better cemented with the fifth lens L5 with negative refractive power to form a cemented lens, the fourth lens L4 and the fifth lens L5 are combined with positive and negative lenses, which is beneficial to correct the aberration of the optical lens 100 and shorten the total optical length of the optical lens 100, which is beneficial to realize miniaturization design; the sixth lens L6 with positive refractive power is matched with the object side S11 which is convex at the near optical axis O and the image side S12 which is convex at the near optical axis O, which is beneficial to correct the edge field aberration of the optical lens 100 and improve the imaging optical quality of the optical lens 100.

[0028] In some embodiments, when the optical lens 100 is applied to terminal equipment such as vehicle-mounted devices and vehicle recorders, the materials 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 can all be glass, so that the optical lens 100 has good optical effect while reducing the influence of temperature on the above lenses. Of course, among the multiple lenses of the optical lens 100, some lenses can be made of glass material, and some lenses can be made of plastic material, so as to reduce the processing cost and weight of the lenses while ensuring the influence of temperature on the lenses to achieve better imaging effect, thereby reducing the processing cost of the optical lens 100 and reducing the overall weight of the optical lens 100. In addition, it can be understood that when the optical lens 100 is applied to terminal equipment such as smart phones and smart tablets, the materials 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 can be plastic to reduce the overall weight of the optical lens 100.

[0029] In some embodiments, the spherical lens has the advantages of simple manufacturing process, low production cost, and convenient flexible design of the lens surface, and can improve the imaging resolution of the optical lens 100. The aspherical lens can make the object side or image side of the lens have more flexible design, so that the lens can well solve the problems of unclear imaging, distorted view, narrow field of view, etc. under the condition of small size and thin thickness, and the optical lens 100 can have good imaging quality without setting too many lenses, which is beneficial to shorten the length of the optical lens 100. Based on this, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4 and the fifth lens L5 can adopt spherical lenses, and the sixth lens L6 can adopt an aspherical lens. In this way, through the combination design of spherical and aspherical surfaces, the processability of each lens can be improved, which is beneficial to the surface design, and the object side or image side of the lens can have more flexible design, so that each lens can well solve the problems of unclear imaging, distorted view, narrow field of view, etc. under the condition of small size and thin thickness, and the optical lens 100 can have good imaging quality and high resolution without setting too many lenses, which is beneficial to shorten the length of the optical lens 100. It can be understood that in other embodiments, the surfaces of the lenses in the optical lens 100 can all be spherical, all be aspherical, or any combination of spherical and aspherical surfaces. For example, the first lens L1, the third lens L3, the fourth lens L4 and the fifth lens L5 can adopt spherical lenses, and the second lens L2 and the sixth lens L6 can adopt aspherical lenses. The specific selection can be made according to actual needs, and therefore the present embodiment is not limited in this regard.

[0030] In some embodiments, the optical lens 100 further comprises a stop STO, which is arranged between the image side S6 of the third lens L3 and the object side S7 of the fourth lens L4. The stop STO can be an aperture stop and / or a field stop. For example, the stop STO can be an aperture stop, or the stop STO can be a field stop, or the stop STO can be an aperture stop and a field stop. By arranging the stop STO between the image side S6 of the third lens L3 and the object side S7 of the fourth lens L4, the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4, the fifth lens L5 and the sixth lens L6 can be symmetrically arranged, which is beneficial to effectively converge the light entering the optical lens 100, thereby reducing the total optical length of the optical lens 100 and the front aperture of the optical lens 100. It can be understood that in other embodiments, the stop STO can also be arranged between other lenses, which can be adjusted and arranged according to actual conditions, and the present embodiment is not limited in this regard.

[0031] In some embodiments, the optical lens 100 further comprises an optical filter IR, which is arranged between the image side S12 of the sixth lens L6 and the imaging surface IMG of the optical lens 100. Optionally, the optical filter IR can be an infrared cut-off 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 optical filter IR can be an infrared band-pass filter to pass infrared light and reflect visible light, so as to realize infrared imaging of the optical lens 100, so that the optical lens 100 can image and obtain better imaging quality in a dark environment or a special application scenario. It can be understood that the optical filter IR can be made of plastic, or can be made of optical glass coating, or other materials of infrared filter, which can be selected according to actual needs, and is not specifically limited in the present embodiment.

[0032] In some embodiments, the optical lens 100 further comprises a protective glass CG, which is arranged between the optical filter IR and the imaging surface IMG of the optical lens 100, so as to protect and prevent dust from affecting the photosensitive chip. The protective glass CG can be made of plastic, or can be made of optical glass coating, or other materials of protective glass CG, which can be selected according to actual needs, and is not specifically limited in the present embodiment. It can be understood that the protective glass CG can be part of the optical lens 100, or can be removed from the optical lens 100, but the total optical length of the optical lens 100 remains unchanged when the protective glass CG is removed.

[0033] In some embodiments, the optical lens 100 satisfies the relationship: 160°≤FOV≤190°. Wherein, FOV is the maximum field of view angle of the optical lens 100. Further, 164°≤FOV≤188.8°. Specifically, FOV can be 160°, 161°, 163°, 164°, 165°, 168°, 169°, 170°, 174°, 178°, 179°, 180°, 182°, 184°, 186°, 187°, 188°, 188.8°, 189°, 190°, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the range of FOV, the optical lens 100 has a larger field of view angle, and the optical lens 100 has a wider field of view range, so as to obtain more abundant information of the photographed object, and satisfy good optical performance and higher imaging optical quality.

[0034] In some embodiments, the optical lens 100 satisfies a relationship: 1.8 ≤ FNO ≤ 2.2. Wherein, the FNO is the aperture number of the optical lens 100. Further, 1.8 ≤ FNO ≤ 2.0, or 2.0 ≤ FNO ≤ 2.2. Specifically, the FNO can be 1.8, 1.81, 1.82, 1.83, 1.85, 1.86, 1.88, 1.9, 1.92, 1.94, 1.96, 1.97, 1.99, 2, 2.02, 2.04, 2.06, 2.08, 2.1, 2.11, 2.13, 2.14, 2.16, 2.17, 2.18, 2.19, 2.2, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the range of FNO, the optical lens 100 has the characteristics of a large aperture, the optical lens 100 has sufficient light amount, and the image captured by the optical lens 100 is clearer, so that the optical lens 100 can be applied to capture high-quality night scenes or in low-light spaces.

[0035] In some embodiments, the optical lens 100 satisfies a relationship: 9 ≤ TTL / F ≤ 12. Wherein, the TTL is the distance from the object side S1 of the first lens L1 to the imaging surface IMG of the optical lens 100 on the optical axis O, and the F is the effective focal length of the optical lens 100. Further, 9.2962 ≤ TTL / F ≤ 11.976. Specifically, the TTL / F can be 9, 9.01, 9.03, 9.08, 9.1, 9.15, 9.2, 9.25, 9.2962, 9.3, 9.4, 9.5, 9.7, 9.9, 10, 10.05, 10.1, 10.3, 10.7, 10.9, 11, 11.1, 11.3, 11.5, 11.7, 11.8, 11.9, 11.976, 12, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the range of TTL / F, it is beneficial to make the light better converge on the imaging surface IMG of the optical lens 100, which is beneficial to improve the imaging optical quality of the optical lens 100, and at the same time, it is beneficial to make the optical lens 100 realize miniaturization design.

[0036] In some embodiments, the optical lens 100 satisfies the relationship: 5.9≤TTL / IMGH≤7.4. Wherein, IMGH is half of the image height corresponding to the maximum field of view angle of the optical lens 100. Further, 5.9284≤TTL / IMGH≤7.3329. Specifically, TTL / IMGH can be 5.9, 5.91, 5.92, 5.9284, 5.93, 5.95, 5.97, 5.99, 6, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7, 7.1, 7.2, 7.3, 7.3329, 7.4, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the value of TTL / IMGH, the optical lens 100 can support high-pixel photosensitive elements.

[0037] In some embodiments, the optical lens 100 satisfies the relationship: 0.5≤F / IMGH≤0.7. Further, 0.5405≤F / IMGH≤0.6570. Specifically, F / IMGH can be 0.5, 0.51, 0.52, 0.53, 0.54, 0.5405, 0.55, 0.56, 0.57, 0.58, 0.59, 0.6, 0.61, 0.62, 0.63, 0.64, 0.65, 0.6570, 0.66, 0.67, 0.68, 0.69, 0.7, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the value of F / IMGH, the optical lens 100 can meet the requirement of high pixels, which is conducive to improving the imaging optical quality of the optical lens 100.

[0038] In some embodiments, the optical lens 100 satisfies the relationship: 4.9≤TTL / BFL≤6.8. Wherein, BFL is the distance from the image side surface S12 of the sixth lens L6 to the imaging surface IMG of the optical lens 100 on the optical axis O. Further, 4.9846≤TTL / BFL≤6.7321. Specifically, TTL / BFL can be 4.9, 4.91, 4.93, 4.95, 4.98, 4.9846, 5, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.71, 6.73, 6.7321, 6.75, 6.77, 6.79, 6.8, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring TTL / BFL, it is conducive to controlling the chief ray incidence angle of the optical lens 100, so that the optical lens 100 can better match the photosensitive chip.

[0039] In some embodiments, the optical lens 100 satisfies the relationship: 3.8≤TTL / CT3≤6. Wherein, CT3 is the thickness of the third lens L3 on the optical axis O. Further, 3.8160≤TTL / CT3≤5.9663. Specifically, TTL / CT3 can be 3.8, 3.81, 3.815, 3.8160, 3.82, 3.85, 3.88, 3.89, 3.9, 3.95, 4, 4.5, 5, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 5.95, 5.96, 5.9663, 5.97, 5.98, 5.99, 6, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the value of TTL / CT3, it is beneficial to shorten the total optical length of the optical lens 100, make the structure of the optical lens 100 compact, make the optical lens 100 achieve miniaturization design, and at the same time, it is beneficial to correct the on-axis chromatic aberration of the wide-band optical lens 100.

[0040] In some embodiments, the optical lens 100 satisfies the relationship: 89° / mm≤FOV / F≤99° / mm. Further, 89.950° / mm≤FOV / F≤98.204° / mm. Specifically, FOV / F can be 89° / mm, 89.1° / mm, 89.3° / mm, 89.5° / mm, 89.8° / mm, 89.9° / mm, 89.950° / mm, 89.99° / mm, 90° / mm, 91° / mm, 92° / mm, 93° / mm, 94° / mm, 95° / mm, 96° / mm, 97° / mm, 98° / mm, 98.1° / mm, 98.2° / mm, 98.204° / mm, 98.3° / mm, 98.5° / mm, 98.7° / mm, 98.9° / mm, 99° / mm, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of FOV / F, it is beneficial to obtain a larger field of view, while also being able to reduce the deflection angle of the outgoing light, reduce the tolerance sensitivity, weaken the optical lens 100 edge dark angle, and ensure that the optical lens 100 can capture the details of the object at a large angle, making the optical lens 100 achieve wide-angle.

[0041] In some embodiments, the optical lens 100 satisfies a relationship: 0.8≤CT3 / ET3≤1.2. Wherein, ET3 is the distance from the maximum effective aperture of the object side S5 of the third lens L3 to the maximum effective aperture of the image side S6 of the third lens L3 in the direction of the optical axis O. Further, 0.8625≤CT3 / ET3≤1.1871. Specifically, CT3 / ET3 can be 0.8, 0.81, 0.82, 0.83, 0.84, 0.85, 0.86, 0.8625, 0.88, 0.89, 0.9, 0.92, 0.94, 0.96, 0.98, 0.99, 1, 1.02, 1.04, 1.06, 1.08, 1.1, 1.12, 1.14, 1.16, 1.18, 1.1871, 1.19, 1.2, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of CT3 / ET3, reasonably controlling the ratio of the center thickness and the edge thickness of the third lens L3, it is beneficial to correct the field curvature of the optical lens 100, improve the imaging optical quality of the optical lens 100, and at the same time make the overall thickness of the third lens L3 reasonable, which is beneficial to realize the miniaturization design of the optical lens 100.

[0042] In some embodiments, the optical lens 100 satisfies a relationship: 1.18≤CT4 / ET4≤1.75. Wherein, CT4 is the thickness of the fourth lens L4 on the optical axis O, and ET4 is the distance from the maximum effective aperture of the object side S7 of the fourth lens L4 to the maximum effective aperture of the image side S8 of the fourth lens L4 in the direction of the optical axis O. Further, 1.1983≤CT4 / ET4≤1.6209. Specifically, CT4 / ET4 can be 1.18, 1.19, 1.1983, 1.2, 1.22, 1.24, 1.26, 1.28, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.61, 1.62, 1.6209, 1.63, 1.65, 1.66, 1.67, 1.68, 1.7, 1.71, 1.72, 1.73, 1.74, 1.75, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of CT4 / ET4, reasonably controlling the ratio of the center thickness and the edge thickness of the fourth lens L4, the optical path difference of the central field of view and the edge field of view in the optical lens 100 can be effectively balanced, the optical path difference of the central field of view and the edge field of view is prevented from being too large, the light rays of the central field of view and the edge field of view can be converged to the vicinity of the same plane, thereby realizing the correction of the field curvature, and at the same time making the overall thickness of the fourth lens L4 reasonable, which is beneficial to realize the miniaturization design of the optical lens 100.

[0043] In some embodiments, the optical lens 100 satisfies the relationship: 1.47≤CT6 / ET6≤1.81. Wherein, CT6 is the thickness of the sixth lens L6 on the optical axis O, 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. Further, 1.4844≤CT6 / ET6≤1.8005. Specifically, CT6 / ET6 can be 1.47, 1.48, 1.4844, 1.5, 1.51, 1.53, 1.55, 1.57, 1.59, 1.6, 1.62, 1.64, 1.66, 1.68, 1.7, 1.72, 1.74, 1.76, 1.78, 1.79, 1.8, 1.8001, 1.8003, 1.8005, 1.8007, 1.8009, 1.81, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of CT6 / ET6, the ratio of the central thickness and the edge thickness of the sixth lens L6 can be reasonably configured, so that the sixth lens L6 can effectively balance the high-order aberration generated by the optical lens 100, and at the same time, it is also conducive to the field curvature adjustment of the sixth lens L6 in the engineering manufacturing, thereby being conducive to improving the imaging optical quality of the optical lens 100. In addition, it is also conducive to making the surface profile of the sixth lens L6 not excessively curved, thereby improving the molding and assembly yield of the sixth lens L6.

[0044] In some embodiments, the optical lens 100 satisfies the relationship: -1.75≤F1 / R2≤-1.5. Wherein, F1 is the effective focal length of the first lens L1, R2 is the curvature radius of the image side surface S2 of the first lens L1 at the optical axis O. Further, -1.7114≤F1 / R2≤-1.5827. Specifically, F1 / R2 can be -1.75, -1.74, -1.73, -1.72, -1.7114, -1.71, -1.7, -1.68, -1.66, -1.64, -1.62, -1.6, -1.59, -1.5827, -1.58, -1.56, -1.54, -1.52, -1.51, -1.5, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F1 / R2, it is conducive to reducing the head aperture of the optical lens 100, realizing miniaturization design, facilitating the assembly of the optical lens 100, and being able to ensure that the first lens L1 has sufficient refractive power, thereby being conducive to suppressing high-order aberration, improving the imaging optical quality of the optical lens 100, and being able to reduce the processing difficulty of the first lens L1, ensuring that the first lens L1 is not easy to produce ghosting.

[0045] In some embodiments, the optical lens 100 satisfies a relationship: -2.7≤F2 / F≤-1.95. Wherein, F2 is the effective focal length of the second lens L2. Further, -2.6679≤F2 / F≤-2.0461. Specifically, F2 / F can be -2.7, -2.6679, -2.6, -2.5, -2.4, -2.3, -2.2, -2.1, -2.0461, -2, -1.99, -1.98, -1.97, -1.96, -1.95, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F2 / F, it is beneficial to control the light rays passing through the first lens L1 to reasonably enter the third lens L3, beneficial to correct the aberration generated by the first lens L1, and at the same time, beneficial to the reasonable matching of the optical lens 100 with the photosensitive chip in the later stage.

[0046] In some embodiments, the optical lens 100 satisfies a relationship: 2≤|SAGS4 / SAGS3|≤6. Wherein, SAGS3 is the distance from the intersection of the object side S3 of the second lens L2 and the optical axis O to the maximum effective aperture of the object side S3 of the second lens L2 on the optical axis O, and SAGS4 is the distance from the intersection of the image side S4 of the second lens L2 and the optical axis O to the maximum effective aperture of the image side S4 of the second lens L2 on the optical axis O. Further, 2.0488≤|SAGS4 / SAGS3|≤5.8000, or 2.0488≤SAGS4 / SAGS3≤5.8000, or -5.8000≤SAGS4 / SAGS3≤-2.0488. Specifically, SAGS4 / SAGS3 can be -6, -5.8000, -5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2.0488, -2, 2, 2.0488, 2.05, 2.1, 2.5, 2.8, 3, 3.5, 4, 4.5, 5, 5.5, 5.6, 5.7, 5.8000, 5.9, 6, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of |SAGS4 / SAGS3|, the edge aberration of the optical lens 100 can be corrected, the generation of astigmatism can be suppressed, the shape of the second lens L2 can be controlled, and the surface of the second lens L2 is not too curved to be not conducive to the processing technology of the lens.

[0047] In some embodiments, the optical lens 100 satisfies the relationship: 0.55≤SD6 / SD7≤1.6. Wherein, SD6 is half of the maximum effective aperture of the image side S6 of the third lens L3, and SD7 is half of the maximum effective aperture of the object side S7 of the fourth lens L4. Further, 0.5887≤SD6 / SD7≤1.5923. Specifically, SD6 / SD7 can be 0.55, 0.56, 0.57, 0.58, 0.5887, 0.59, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 1, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.59, 1.5923, 1.595, 1.6, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of SD6 / SD7, since the stop STO of the optical lens 100 according to the present application is located between the third lens L3 and the fourth lens L4, by limiting the ratio of SD6 / SD7, the maximum effective half aperture difference of the two can be not large, the aperture difference of the two can be reduced, so that the light can be better and more gently transitioned from the third lens L3 to the fourth lens L4.

[0048] In some embodiments, the optical lens 100 satisfies the relationship: 0.55≤f123 / f456≤1.25. Wherein, f123 is the combined effective focal length of the first lens L1, the second lens L2 and the third lens L3, and f456 is the combined effective focal length of the fourth lens L4, the fifth lens L5 and the sixth lens L6. Further, 0.5555≤f123 / f456≤1.2438. Specifically, f123 / f456 can be 0.55, 0.555, 0.5555, 0.56, 0.58, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1, 1.05, 1.1, 1.15, 1.2, 1.21, 1.22, 1.23, 1.24, 1.2438, 1.245, 1.247, 1.249, 1.25, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of f123 / f456, wherein the first lens L1 and the first lens L1 are symmetrically distributed with the third lens L3 and the fourth lens L4 and the fifth lens L5 and the sixth lens L6, which is beneficial to the reasonable distribution of optical power of the optical lens 100, which is beneficial to improving the imaging optical quality of the optical lens 100. At the same time, by reasonably configuring the ratio of f123 / f456, the exit angle of the chief ray passing through the sixth lens L6 can also be reduced, which is beneficial to improving the relative brightness of the optical lens 100.

[0049] In some embodiments, the optical lens 100 satisfies the relationship: 1.78≤SD1 / IMGH≤2.2, where SD1 is half of the maximum effective aperture of the object side S1 of the first lens L1. Further, 1.7961≤SD1 / IMGH≤2.1080. Specifically, SD1 / IMGH can be 1.78, 1.79, 1.7961, 1.8, 1.85, 1.9, 1.95, 1.96, 1.98, 1.99, 2, 2.01, 2.05, 2.09, 2.1, 2.1080, 2.11, 2.15, 2.17, 2.18, 2.19, 2.2, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of SD1 / IMGH, the optical lens 100 can meet the requirement of adapting to a large-size imaging surface IMG, while taking into account the miniaturization design of the head of the optical lens 100.

[0050] In some embodiments, the optical lens 100 satisfies the relationship: -1.6≤(R6+CT3) / R5≤-0.2, where R5 is the curvature radius of the object side S5 of the third lens L3 at the optical axis O, and R6 is the curvature radius of the image side S6 of the third lens L3 at the optical axis O. Further, -1.5295≤(R6+CT3) / R5≤-0.2283. Specifically, (R6+CT3) / R5 can be -1.6, -1.55, -1.5295, -1.5, -1.45, -1.4, -1.35, -1.3, -1.25, -1.2, -1.15, -1.1, -1.05, -1.0, -0.95, -0.9, -0.85, -0.8, -0.75, -0.7, -0.65, -0.6, -0.55, -0.5, -0.45, -0.4, -0.35, -0.3, -0.25, -0.2283, -0.22, -0.21, -0.2, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of (R6+CT3) / R5, it is beneficial to control the machining shape of the third lens L3, to ensure that the optical lens 100 as a whole is miniaturized, and it is also beneficial to correct the field curvature of the optical lens 100, to improve the imaging optical quality.

[0051] In some embodiments, the optical lens 100 satisfies the relationship: -3.5≤R6 / ET3≤-1.4. Further, -3.2810≤R6 / ET3≤-1.4614. Specifically, R6 / ET3 can be -3.5, -3.4, -3.3, -3.2810, -3.2, -3.1, -3, -2.9, -2.8, -2.7, -2.6, -2.5, -2.4, -2.3, -2.2, -2.1, -2, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4614, -1.4, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of R6 / ET3, the large-angle light rays converging at the third lens L3 through the second lens L2 are avoided from being deflected too much to cause the increase of edge aberration, which is conducive to suppressing and eliminating chromatic aberration and improving the resolution and imaging optical quality of the optical lens 100.

[0052] In some embodiments, the optical lens 100 satisfies the relationship: 4.5≤CT3 / CT2≤9. Wherein, CT2 is the thickness of the second lens L2 on the optical axis O. Further, 4.5910≤CT3 / CT2≤8.6733. Specifically, CT3 / CT2 can be 4.5, 4.55, 4.59, 4.5910, 4.6, 4.8, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 8.6, 8.6733, 8.7, 8.8, 8.9, 9, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of CT3 / CT2, it is conducive to the mutual cooperation of the second lens L2 and the third lens L3 in shape, thereby effectively improving the relative brightness of the periphery of the optical lens 100, and at the same time, improving the yield during assembly of the second lens L2 and the third lens L3.

[0053] In some embodiments, the optical lens 100 satisfies the relationship: 74°≤FOV / FNO≤100°. Further, 74.545°≤FOV / FNO≤99.444°. Specifically, FOV / FNO can be 74°, 74.5°, 74.545°, 74.6°, 74.8°, 75°, 78°, 80°, 82°, 84°, 86°, 88°, 90°, 91°, 92°, 93°, 94°, 95°, 96°, 97°, 98°, 99°, 99.1°, 99.2°, 99.4°, 99.444°, 99.5°, 99.6°, 99.8°, 99.9°, 100°, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of FOV / FNO, the aperture number of the optical lens 100 is reduced while the large field of view is taken into account, which is conducive to the miniaturization design of the optical lens 100 and the reduction of cost.

[0054] In some embodiments, the optical lens 100 satisfies the relationship: 1.3≤F4 / CT4≤2.1. Wherein, F4 is the effective focal length of the fourth lens L4. Further, 1.3281≤F4 / CT4≤2.0669. Specifically, F4 / CT4 can be 1.3, 1.32, 1.3281, 1.34, 1.36, 1.38, 1.4, 1.45, 1.5, 1.52, 1.56, 1.58, 1.6, 1.63, 1.66, 1.69, 1.7, 1.74, 1.78, 1.8, 1.84, 1.88, 1.89, 1.9, 1.92, 1.94, 1.96, 1.98, 2, 2.05, 2.06, 2.0669, 2.07, 2.09, 2.1, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F4 / CT4, the thickness of the fourth lens L4 can be controlled within a reasonable range, thereby facilitating the optical lens 100 to have a relatively compact structure, and further facilitating the miniaturization design of the optical lens 100. At the same time, the positive refractive power provided by the fourth lens L4 can be controlled within a reasonable range, and the effect of suppressing chromatic aberration is improved, so that the optical lens 100 can have higher resolution performance, thereby ensuring the imaging quality of the optical lens 100.

[0055] In some embodiments, the optical lens 100 satisfies the relationship: -6≤F5 / CT5≤-2. Wherein, F5 is the effective focal length of the fifth lens L5, and CT5 is the thickness of the fifth lens L5 on the optical axis O. Further, -5.8486≤F5 / CT5≤-2.7514. Specifically, F5 / CT5 can be -6, -5.9, -5.8486, -5.8, -5.5, -5.3, -5.1, -5, -4.8, -4.6, -4.4, -4.2, -4, -3.8, -3.6, -3.4, -3.2, -3, -2.9, -2.7514, -2.7, -2.5, -2.3, -2.1, -2.05, -2, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F5 / CT5, the convergence ability of the fifth lens L5 to the incident light can be reasonably adjusted, which is conducive to correcting the edge aberration of the optical lens 100, reducing the chief ray angle of the edge field of view, and further improving the photosensitive performance of the photosensitive element and the resolving power of the optical lens 100.

[0056] In some embodiments, the optical lens 100 satisfies the relationship: -3.5≤F1 / F≤-2.6. Further, -3.498≤F1 / F≤-2.644. Specifically, F1 / F can be -3.5, -3.498, -3.49, -3.47, -3.45, -3.43, -3.4, -3.25, -3.2, -3.15, -3.1, -3.05, -3, -2.95, -2.9, -2.85, -2.8, -2.75, -2.7, -2.65, -2.644, -2.64, -2.62, -2.61, -2.6, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F1 / F, the light deviation can be effectively controlled, the sensitivity can be reduced, the field curvature can be corrected, the spherical aberration and the astigmatism of the optical lens 100 can be reduced, and thus the imaging quality of the optical lens 100 can be effectively improved. In addition, the total optical length of the optical lens 100 can be controlled, and the miniaturization of the optical lens 100 can be facilitated.

[0057] In some embodiments, the optical lens 100 satisfies the relationship: 1.95≤F3 / F≤2.65. Wherein, F3 is the effective focal length of the third lens L3. Further, 1.977≤F3 / F≤2.604. Specifically, F3 / F can be 1.95, 1.97, 1.977, 1.99, 2, 2.1, 2.2, 2.3, 2.35, 2.4, 2.45, 2.5, 2.55, 2.6, 2.601, 2.604, 2.608, 2.61, 2.63, 2.65, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F3 / F, the incident light of the first lens L1 and the second lens L2 can be effectively collected and compressed, the light can be smoothly transferred from the third lens L3 to the fourth lens L4, the generation of spherical aberration and astigmatism can be reduced, and thus the imaging quality of the optical lens 100 can be improved.

[0058] In some embodiments, the optical lens 100 satisfies the relationship: 1.5≤F4 / F≤2.3. Further, 1.503≤F4 / F≤2.243. Specifically, F4 / F can be 1.5, 1.501, 1.503, 1.505, 1.51, 1.53, 1.57, 1.59, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2, 2.05, 2.1, 2.15, 2.2, 2.22, 2.243, 2.25, 2.27, 2.29, 2.3, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F4 / F, the aberration can be effectively corrected after the combination of the fourth lens L4 and the fifth lens L5, and the resolution of the optical lens 100 can be further improved.

[0059] In some embodiments, the optical lens 100 satisfies the relationship: -2≤F5 / F≤-1. Further, -1.635≤F5 / F≤-1.067. Specifically, F5 / F can be -2, -1.9, -1.8, -1.7, -1.635, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.09, -1.08, -1.07, -1.067, -1.06, -1.04, -1.02, -1.01, -1, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F5 / F, the fifth lens L5 avoids introducing too much spherical aberration and can effectively correct aberration, which is conducive to improving the resolution of the optical lens 100. In addition, the total optical length of the optical lens 100 can be controlled, which is conducive to the miniaturization of the optical lens 100.

[0060] In some embodiments, the optical lens 100 satisfies the relationship: 2≤F6 / F≤2.6. Wherein, F6 is the effective focal length of the sixth lens L6. Further, 2.025≤F6 / F≤2.515. Specifically, F6 / F can be 2, 2.01, 2.02, 2.025, 2.03, 2.05, 2.09, 2.1, 2.15, 2.2, 2.25, 2.3, 2.35, 2.4, 2.45, 2.5, 2.51, 2.515, 2.52, 2.54, 2.56, 2.58, 2.6, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of F6 / F, it is conducive to reasonably distributing the overall refractive power of the optical lens 100, improving the imaging resolution of the optical lens 100, and realizing high-pixel imaging of the optical lens 100.

[0061] In some embodiments, the optical lens 100 satisfies the relationship: 3.5≤R1 / R2≤4.7. Wherein, R1 is the curvature radius of the object side S1 of the first lens L1 at the optical axis O. Further, 3.552≤R1 / R2≤4.661. Specifically, R1 / R2 can be 3.5, 3.51, 3.52, 3.53, 3.55, 3.552, 3.56, 3.58, 3.6, 3.7, 3.8, 3.9, 4, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.61, 4.63, 4.64, 4.65, 4.66, 4.661, 4.67, 4.68, 4.69, 4.7, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of R1 / R2, the refractive power of the first lens L1 of the optical lens 100 is evenly configured, the effective aperture of the first lens L1 of the optical lens 100 is effectively controlled, which is conducive to realizing a large field of view of the optical lens 100.

[0062] In some embodiments, the optical lens 100 satisfies the relationship: -1.1≤R5 / R6≤-0.4. Further, -1.000≤R5 / R6≤-0.457. Specifically, R5 / R6 can be -1.1, -1.05, -1.000, -0.95, -0.9, -0.85, -0.8, -0.75, -0.7, -0.65, -0.6, -0.55, -0.5, -0.48, -0.46, -0.457, -0.45, -0.44, -0.43, -0.42, -0.41, -0.4, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of R5 / R6, the refractive power configuration of the third lens L3 of the optical lens 100 is uniform, which is beneficial to correcting the distortion and aberration generated by the first lens L1 and the second lens L2, reducing the performance change sensitivity of the optical lens 100, and is beneficial to improving the resolution of the optical lens 100; at the same time, it is beneficial to reasonably constrain the surface shape of the third lens L3, and reduce the molding difficulty.

[0063] In some embodiments, the optical lens 100 satisfies the relationship: -3≤R7 / R8≤-1. Wherein R7 is the curvature radius of the object side surface S7 of the fourth lens L4 at the optical axis O, and R8 is the curvature radius of the image side surface S8 of the fourth lens L4 at the optical axis O. Further, -2.973≤R7 / R8≤-1.199. Specifically, R7 / R8 can be -3, -2.98, -2.973, -2.97, -2.95, -2.93, -2.91, -2.9, -2.8, -2.7, -2.5, -2.3, -2.1, -2, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.199, -1.19, -1.1, -1.05, -1.01, -1, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of R7 / R8, the refractive power configuration of the fourth lens L4 of the optical lens 100 is uniform, which is beneficial to reducing chromatic aberration and spherical aberration, reducing the performance change sensitivity of the optical lens 100, and is beneficial to improving the resolving power of the optical lens 100; at the same time, it is beneficial to reasonably constrain the surface shape of the fourth lens L4, and reduce the molding difficulty.

[0064] In some embodiments, the optical lens 100 satisfies the relationship: -0.45 ≤ R9 / R10 ≤ -0.22. Where R9 is the radius of curvature of the object-side surface S9 of the fifth lens L5 at the optical axis O, and R10 is the radius of curvature of the image-side surface S10 of the fifth lens L5 at the optical axis O. Further, -0.424 ≤ R9 / R10 ≤ -0.248. Specifically, R9 / R10 can be -0.45, -0.44, -0.424, -0.42, -0.4, -0.38, -0.36, -0.34, -0.32, -0.3, -0.29, -0.28, -0.27, -0.26, -0.25, -0.248, -0.24, -0.23, -0.225, -0.221, -0.22, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of R9 / R10, the refractive power of the fifth lens L5 of the optical lens 100 is uniformly configured, which is beneficial to correcting the distortion and aberrations generated by the first lens L1, the second lens L2, the third lens L3 and the fourth lens L4, reducing the sensitivity of the optical lens 100 to performance changes, and improving the resolving power of the optical lens 100; at the same time, it is beneficial to reasonably constrain the surface shape of the fifth lens L5 and reduce the difficulty of processing and forming.

[0065] In some embodiments, the optical lens 100 satisfies the relationship: -2.2 ≤ R11 / R12 ≤ -1. Where R11 is the radius of curvature of the object-side surface S11 of the sixth lens L6 at the optical axis O, and R12 is the radius of curvature of the image-side surface S12 of the sixth lens L6 at the optical axis O. Further, -2.155 ≤ R11 / R12 ≤ -1.040. Specifically, R11 / R12 can be -2.2, -2.19, -2.17, -2.155, -2.15, -2.13, -2.1, -2, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.05, -1.040, -1.03, -1.02, -1.01, -1, etc. When the optical lens 100 satisfies the above relationship, by reasonably configuring the ratio of R11 / R12, the refractive power of the sixth lens L6 of the optical lens 100 is uniformly configured, which is beneficial to correcting the distortion and aberrations generated by the first lens L1, the second lens L2, the third lens L3, the fourth lens L4 and the fifth lens L5, reducing the sensitivity of the optical lens 100 to performance changes, and improving the resolution of the optical lens 100; at the same time, it is beneficial to reasonably constrain the surface shape of the sixth lens L6 and reduce the difficulty of processing and forming.

[0066] The surface shape of each aspherical lens can be defined using, but is not limited to, the following aspherical formulas:

[0067]

[0068] Where Z is the distance from the corresponding point on the aspherical surface to the plane tangent to the vertex of the surface, c is the curvature of the vertex of the aspherical surface, c = 1 / Y, Y is the radius of curvature (i.e., the paraxial curvature c is the reciprocal of the radius of Y in Table 1), r is the distance from any point on the aspherical surface to the optical axis O, k is the conic constant, and Ai is the coefficient corresponding to the i-th higher-order term in the aspherical surface shape formula.

[0069] The optical lens 100 of this embodiment will be described in detail below with reference to specific parameters.

[0070] First Embodiment

[0071] The structural schematic diagram of the optical lens 100 disclosed in the first embodiment of this application is shown below. Figure 1 As shown, the optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, an aperture stop STO, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR, and a protective glass CG arranged sequentially along the optical axis O from the object side to the image side.

[0072] 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.

[0073] Furthermore, the object-side surface S1 of the first lens L1 is convex near the optical axis O, and the image-side surface S2 of the first lens L1 is concave near the optical axis O; the object-side surface S3 of the second lens L2 is concave near the optical axis O, and the image-side surface S4 of the second lens L2 is concave near the optical axis O; the object-side surface S5 of the third lens L3 is convex near the optical axis O, and the image-side surface S6 of the third lens L3 is convex near the optical axis O; the object-side surface S7 of the fourth lens L4 is convex near the optical axis O, and the image-side surface S8 of the fourth lens L4 is convex near the optical axis O; the object-side surface S9 of the fifth lens L5 is concave near the optical axis O, and the image-side surface S10 of the fifth lens L5 is concave near the optical axis O; the object-side surface S11 of the sixth lens L6 is convex near the optical axis O, and the image-side surface S12 of the sixth lens L6 is convex near the optical axis O.

[0074] In particular, the Y radius in Table 1a is the radius of curvature of the object side surface or the image side surface of the corresponding surface at the optical axis O. The first value in the "thickness" parameter column is the thickness of the lens at the optical axis O, and the second value is the distance from the image side surface of the lens to the vertex of the next surface at the optical axis O. The value of the stop STO in the "thickness" parameter column is the distance from the stop STO to the vertex of the next surface at the optical axis O. By default, the direction from the object side surface S1 of the first lens L1 to the image side surface S12 of the last lens is the positive direction of the optical axis O. When the value is negative, it indicates that the stop STO is disposed on the image side of the vertex of the next surface. If the thickness of the stop STO is positive, the stop STO is on the object side of the vertex of the next surface. It can be understood that the units of the Y radius, the thickness and the effective focal length in Table 1a are mm. In Table 1a, the reference wavelength of the refractive index, the Abbe number and the effective focal length of each lens is 546.0000 nm.

[0075] In the first embodiment, the object side surface S11 and the image side surface S12 of the sixth lens L6 are both aspherical surfaces, and Table 1b shows the conic constant k, the high-order term coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspherical surfaces in the first embodiment.

[0076] Table 1a

[0077]

[0078] Table 1b

[0079]

[0080] Please refer to Figure 2 (A), Figure 2 (A) of FIG. 10 shows the longitudinal spherical aberration of the optical lens 100 in the first embodiment at wavelengths of 656.2700 nm, 587.5600 nm, 546.0000 nm, 487.0000 nm, 435.0000 nm and 410.0000 nm, respectively. In which, the abscissa along the X axis represents the focal point offset, and the unit is mm, and the ordinate along the Y axis represents the normalized field of view. From Figure 2 (A) of FIG. 10, it can be seen that the spherical aberration of the optical lens 100 in the first embodiment is better, which indicates that the imaging quality of the optical lens 100 in the embodiment is better. Please refer to Figure 2 (B), Figure 2Figure (B) shows the astigmatism diagram of the optical lens 100 in the first embodiment at a wavelength of 546.0000 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 plane IMG in the sub-arc direction, and S represents the curvature of the imaging plane IMG in the sagittal direction. Figure 2 As can be seen in (B) above, the astigmatism of optical lens 100 is well compensated at this wavelength. Please refer to [link / reference]. Figure 2 (C) in the middle, Figure 2 Figure (C) shows the distortion curve of the optical lens 100 in the first embodiment at a wavelength of 546.0000 nm. The horizontal axis along the X-axis represents distortion, and the vertical axis along the Y-axis represents the field of view, in degrees (deg). Figure 3 As can be seen from (C), the distortion of the optical lens 100 is well corrected at this wavelength.

[0081] Second Embodiment

[0082] The structural schematic diagram of the optical lens 100 disclosed in the second embodiment of this application is shown below. Figure 4 As shown, the optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, an aperture stop STO, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR, and a protective glass CG arranged sequentially along the optical axis O from the object side to the image side.

[0083] 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.

[0084] Furthermore, the object-side surface S1 of the first lens L1 is convex near the optical axis O, and the image-side surface S2 of the first lens L1 is concave near the optical axis O; the object-side surface S3 of the second lens L2 is concave near the optical axis O, and the image-side surface S4 of the second lens L2 is concave near the optical axis O; the object-side surface S5 of the third lens L3 is convex near the optical axis O, and the image-side surface S6 of the third lens L3 is convex near the optical axis O; the object-side surface S7 of the fourth lens L4 is convex near the optical axis O, and the image-side surface S8 of the fourth lens L4 is convex near the optical axis O; the object-side surface S9 of the fifth lens L5 is concave near the optical axis O, and the image-side surface S10 of the fifth lens L5 is concave near the optical axis O; the object-side surface S11 of the sixth lens L6 is convex near the optical axis O, and the image-side surface S12 of the sixth lens L6 is convex near the optical axis O.

[0085] Other parameters in the second embodiment are given in Table 2a below, and the definitions of each parameter can be derived from the description of the foregoing embodiments, and will not be repeated here. It is understood that the units for Y-radius, thickness, and effective focal length in Table 2a are all mm. Furthermore, the reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 2a is 546.0000 nm.

[0086] In the second embodiment, the object side surface S11 and the image side surface S12 of the sixth lens L6 are both aspherical. Table 2b gives the conic constant k, higher-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical mirror surface in the second embodiment.

[0087] Table 2a

[0088]

[0089] Table 2b

[0090]

[0091]

[0092] Please see Figure 4 ,Depend on Figure 4 As can be seen from (A) the longitudinal spherical aberration diagram, (B) the astigmatism diagram, and (C) the distortion curve diagram, in the second embodiment, the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 are all well controlled, thus the optical lens 100 of this embodiment has good imaging quality. Furthermore, regarding... Figure 4 (A) Figure 4 (B) and Figure 2 The wavelengths corresponding to the curves in (C) can be referred to in the first embodiment regarding... Figure 2 (A) in the middle Figure 2 (B) in the middle Figure 5 The content described in (C) will not be repeated here.

[0093] Third Embodiment

[0094] The structural schematic diagram of the optical lens 100 disclosed in the third embodiment of this application is shown below. Figure 6 As shown, the optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, an aperture stop STO, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR, and a protective glass CG arranged sequentially along the optical axis O from the object side to the image side.

[0095] 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.

[0096] Furthermore, the object-side surface S1 of the first lens L1 is convex near the optical axis O, and the image-side surface S2 of the first lens L1 is concave near the optical axis O; the object-side surface S3 of the second lens L2 is concave near the optical axis O, and the image-side surface S4 of the second lens L2 is concave near the optical axis O; the object-side surface S5 of the third lens L3 is convex near the optical axis O, and the image-side surface S6 of the third lens L3 is convex near the optical axis O; the object-side surface S7 of the fourth lens L4 is convex near the optical axis O, and the image-side surface S8 of the fourth lens L4 is convex near the optical axis O; the object-side surface S9 of the fifth lens L5 is concave near the optical axis O, and the image-side surface S10 of the fifth lens L5 is concave near the optical axis O; the object-side surface S11 of the sixth lens L6 is convex near the optical axis O, and the image-side surface S12 of the sixth lens L6 is convex near the optical axis O.

[0097] Other parameters in the third embodiment are given in Table 3a below, and the definitions of each parameter can be derived from the description of the foregoing embodiments, and will not be repeated here. It is understood that the units for the Y-radius, thickness, and effective focal length in Table 3a are all mm. Furthermore, the reference wavelength for the refractive index, Abbe number, and effective focal length of each lens in Table 3a is 546.0000 nm.

[0098] In the third embodiment, the object side S11 and image side S12 of the sixth lens L6 are both aspherical. Table 3b gives the conic constant k, higher-order coefficients A4, A6, A8, A10, A12, A14 and A16 that can be used for each aspherical mirror in the third embodiment.

[0099] Table 3a

[0100]

[0101] Table 3b

[0102]

[0103] Please see Figure 6 ,Depend on Figure 6 As can be seen from (A) the longitudinal spherical aberration diagram, (B) the astigmatism diagram, and (C) the distortion curve diagram, in the third embodiment, the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 are all well controlled, thus the optical lens 100 of this embodiment has good imaging quality. Furthermore, regarding... Figure 6 (A) Figure 6 (B) and Figure 2The wavelengths corresponding to each curve in (C) in FIG. 1 can refer to the descriptions about Figure 2 (A) in FIG. 1, Figure 2 (B) in FIG. 1, Figure 7 (C) in FIG. 1, which will not be repeated here.

[0104] Fourth Embodiment

[0105] The structural schematic diagram of the optical lens 100 disclosed by the fourth embodiment of the present application is shown in FIG. 4, which comprises, along the optical axis O from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, a stop STO, a fourth lens L4, a fifth lens L5, a sixth lens L6, an optical filter IR and a protective glass CG. Figure 8 Further, the first lens L1 has a negative refractive power, the second lens L2 has a negative refractive power, the third lens L3 has a positive refractive power, the fourth lens L4 has a positive refractive power, the fifth lens L5 has a negative refractive power, and the sixth lens L6 has a positive refractive power.

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

[0107] Other parameters in the fourth embodiment are given in Table 4a below, and the definitions of the parameters can be obtained from the descriptions of the foregoing embodiments, which will not be repeated here. It can be understood that the units of the Y radius, the thickness and the effective focal length in Table 4a are mm. And the reference wavelength of the refractive index, the Abbe number and the effective focal length of each lens in Table 4a is 546.0000 nm.

[0108] In the fourth embodiment, the object side surface S3 and the image side surface S4 of the second lens L2 and the object side surface S11 and the image side surface S12 of the sixth lens L6 are aspherical surfaces, and the conic constant k, the high-order term coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspherical surfaces that can be used in the fourth embodiment are given in Table 4b.

[0109]

[0110] ​Table 4a

[0111]

[0112]

[0113] Table 4b

[0114]

[0115] Please refer to Figure 8 , it can be seen from (A) longitudinal spherical aberration diagram, (B) astigmatism diagram and (C) distortion curve diagram in Figure 8 that 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 the embodiment has good imaging quality. In addition, the wavelengths corresponding to the curves in (A), Figure 8 (B) and Figure 8 (C) can refer to the descriptions about the wavelengths corresponding to the curves in (A), Figure 2 (B) and (C) in the first embodiment, which will not be described here again. Figure 2 Figure 2 Figure 9

[0116] Fifth Embodiment

[0117] The structural schematic diagram of the optical lens 100 disclosed by the fifth embodiment of the present application is shown in Figure 10 , which comprises, in order from the object side to the image side along the optical axis O, a first lens L1, a second lens L2, a third lens L3, a diaphragm STO, a fourth lens L4, a fifth lens L5, a sixth lens L6, a filter IR and a protection glass CG.

[0118] Further, the first lens L1 has a negative refractive power, the second lens L2 has a negative refractive power, the third lens L3 has a positive refractive power, the fourth lens L4 has a positive refractive power, the fifth lens L5 has a negative refractive power, and the sixth lens L6 has a positive refractive power.

[0119] ​​​Further, the object side S1 of the first lens L1 is convex at the vicinity of the optical axis O, the image side S2 of the first lens L1 is concave at the vicinity of the optical axis O; the object side S3 of the second lens L2 is concave at the vicinity of the optical axis O, the image side S4 of the second lens L2 is concave at the vicinity of the optical axis O; the object side S5 of the third lens L3 is convex at the vicinity of the optical axis O, the image side S6 of the third lens L3 is convex at the vicinity of the optical axis O; the object side S7 of the fourth lens L4 is convex at the vicinity of the optical axis O, the image side S8 of the fourth lens L4 is convex at the vicinity of the optical axis O; the object side S9 of the fifth lens L5 is concave at the vicinity of the optical axis O, the image side S10 of the fifth lens L5 is concave at the vicinity of the optical axis O; the object side S11 of the sixth lens L6 is convex at the vicinity of the optical axis O, the image side S12 of the sixth lens L6 is convex at the vicinity of the optical axis O.

[0120] The other parameters in the fifth embodiment are given in Table 5a below, and the definitions of the parameters can be derived from the descriptions of the previous embodiments, which are not repeated here. It is understood that the units of the Y radius, thickness and effective focal length in Table 5a are mm. And the reference wavelength of the refractive index, Abbe number and effective focal length of each lens in Table 5a is 546.0700 nm.

[0121] In the fifth embodiment, the object side S11 and the image side S12 of the sixth lens L6 are both aspherical surfaces, and the conic constant k, the higher order coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspherical surfaces used in the fifth embodiment are given in Table 5b.

[0122] Table 5a

[0123]

[0124] Table 5b

[0125]

[0126] Please refer to Figure 10 , (B) astigmatism and (C) distortion curve in Figure 10 , it can be seen that 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. In addition, the wavelengths corresponding to the curves in (A), Figure 10 , (B) and (C) in Figure 10 , (B) and (C) in Figure 2 , (B) and (C) in Figure 2 , (B) and (C) in Figure 2 , (B) and (C) in Figure 11 , (B) and (C) in

[0127] Sixth embodiment

[0128] The optical lens 100 of the sixth embodiment disclosed by the present application has a structure as shown in the following figure Figure 12 As shown in the figure, the optical lens 100 comprises, along the optical axis O from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, a stop STO, a fourth lens L4, a fifth lens L5, a sixth lens L6, an infrared filter IR and a protective glass CG.

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

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

[0131] The other parameters in the sixth embodiment are given in the following Table 6a, and the definition of each parameter can be obtained from the description of the foregoing embodiments, which will not be repeated here. It can be understood that the units of the Y radius, the thickness and the effective focal length in Table 6a are mm. And the reference wavelength of the refractive index, the Abbe number and the effective focal length of each lens in Table 6a is 546.0700 nm.

[0132] In the sixth embodiment, the object side surface S11 and the image side surface S12 of the sixth lens L6 are aspheric surfaces, and the conic constant k, the high-order term coefficients A4, A6, A8, A10, A12, A14 and A16 of the aspheric surfaces used in the sixth embodiment are given in Table 6b.

[0133] Table 6a

[0134]

[0135] Table 6b

[0136]

[0137] Please refer toFigure 12 ,Depend on Figure 12 As can be seen from (A) the longitudinal spherical aberration diagram, (B) the astigmatism diagram, and (C) the distortion curve diagram, in the sixth embodiment, the longitudinal spherical aberration, astigmatism, and distortion of the optical lens 100 are all well controlled, thus the optical lens 100 of this embodiment has good imaging quality. Furthermore, regarding... Figure 12 (A) Figure 12 (B) and Figure 2 The wavelengths corresponding to the curves in (C) can be referred to in the first embodiment regarding... Figure 2 (A) in the middle Figure 2 (B) in the middle Figure 13 The content described in (C) will not be repeated here.

[0138] Table 7 shows the values ​​of FOV, FNO, TTL / F, TTL / IMGH, F / IMGH, TTL / BFL, TTL / CT3, FOV / F, CT3 / ET3, CT4 / ET4, CT6 / ET6, F1 / R2, F2 / F, |SAGS4 / SAGS3|, SD6 / SD7, f123 / f456, SD1 / IMGH, (R6+CT3) / R5, R6 / ET3, CT3 / CT2, FOV / FNO, F4 / CT4, F5 / CT5, F1 / F, F3 / F, F4 / F, F5 / F, F6 / F, R1 / R2, R5 / R6, R7 / R8, R9 / R10, and R11 / R12 in the optical lenses 100 of the first to sixth embodiments.

[0139] Table 7

[0140]

[0141]

[0142] Please see Figure 14 This application also discloses a camera module 200, which includes a photosensitive chip 201 and the aforementioned optical lens 100. The photosensitive chip 201 is disposed 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 onto the photosensitive chip 201. The photosensitive chip 201 is used to convert the light signal corresponding to the subject into an image signal, which will not be elaborated here. It is understood that the camera module 200 with the aforementioned optical lens 100 also has all the technical effects of the aforementioned optical lens 100, that is, it can meet the requirements of miniaturization, large aperture, and wide field of view.

[0143] Please see ​The embodiment of the present application also discloses a terminal device 300, which comprises a shell 301 and the camera module 200 described above, and the camera module 200 is arranged on the shell 300. The terminal device 300 can be, but is not limited to, a car, a mobile phone, a tablet computer, a notebook computer, a smart watch, a monitor, a smart robot, a sweeping robot and the like. Understandably, the terminal device 300 with the camera module 200 described above also has all the technical effects of the optical lens 100 described above, that is, the requirements of miniaturization, large aperture and wide field of view can be met.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application rather than 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 can be modified or replaced equivalently 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, sequentially including, along the optical axis from the object side to the image side: A first lens with negative refractive power, the object side surface of the first lens is convex at the near optical axis, the image side surface of the first lens is concave at the near optical axis; A second lens with negative refractive power, the image side surface of the second lens is concave at the near optical axis; A third lens with positive refractive power, the object side surface of the third lens is convex at the near optical axis, the image side surface of the third lens is convex at the near optical axis; A fourth lens with positive refractive power, the object side surface of the fourth lens is convex at the near optical axis, the image side surface of the fourth lens is convex at the near optical axis; A fifth lens with negative refractive power, the object side surface of the fifth lens is concave at the near optical axis, the image side surface of the fifth lens is concave at the near optical axis; A sixth lens with positive refractive power, the object side surface of the sixth lens is convex at the near optical axis, the image side surface of the sixth lens is convex at the near optical axis; The optical lens satisfies the following relationship: 160°≤FOV≤190°; 1.8≤FNO≤2.2; 9≤TTL / F≤12; 1.78≤SD1 / IMGH≤2.2; Wherein, FOV is the maximum field of view angle of the optical lens, FNO is the aperture number 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, 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.

2. The optical lens of claim 1, wherein, The optical lens satisfies the following relationship: 5.9≤TTL / IMGH≤7.4; and / or, 0.5≤F / IMGH≤0.

7.

3. The optical lens of claim 1, wherein, The optical lens satisfies the following relationship: 4.9≤TTL / BFL≤6.8; and / or, 3.8≤TTL / CT3≤6; and / or, 89° / mm≤FOV / F≤99° / mm; Wherein, BFL is the distance from the image side surface of the sixth lens to the imaging surface of the optical lens on the optical axis, and CT3 is the thickness of the third lens on the optical axis.

4. The optical lens of claim 1, wherein, The optical lens satisfies the following relationship: 0.8≤CT3 / ET3≤1.2; and / or, 1.18≤CT4 / ET4≤1.75; and / or, 1.47≤CT6 / ET6≤1.81; Wherein, CT3 is the thickness of the third lens on the optical axis, ET3 is the distance from the maximum effective aperture of the object side surface of the third lens to the maximum effective aperture of the image side surface of the third lens in the direction of the optical axis, 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 direction of the optical axis, CT6 is the thickness of the sixth lens on the optical axis, and ET6 is the distance from the maximum effective aperture of the object side surface of the sixth lens to the maximum effective aperture of the image side surface of the sixth lens in the direction of the optical axis.

5. The optical lens of claim 1, wherein, The optical lens satisfies the following relationship: -1.75 = F1 / R2 = -1.5; and / or, -2.7 = F2 / F = -1.95; and / or, 2 = |SAGS4 / SAGS3| = 6; wherein, F1 is an effective focal length of the first lens, F2 is an effective focal length of the second lens, R2 is a radius of curvature of an image-side surface of the first lens at an optical axis, SAGS3 is a distance from an intersection of an object-side surface of the second lens and the optical axis to a maximum effective aperture of the object-side surface of the second lens on the optical axis, SAGS4 is a distance from an intersection of an image-side surface of the second lens and the optical axis to a maximum effective aperture of the image-side surface of the second lens on the optical axis.

6. The optical lens of claim 1, wherein, The optical lens satisfies the following relationship: 0.55 = SD6 / SD7 = 1.6; and / or, 0.55 = f123 / f456 = 1.25; wherein, SD6 is a half of a maximum effective aperture of an image-side surface of the third lens, SD7 is a half of a maximum effective aperture of an object-side surface of the fourth lens, f123 is a combined effective focal length of the first lens, the second lens and the third lens, f456 is a combined effective focal length of the fourth lens, the fifth lens and the sixth lens.

7. The optical lens of claim 1, wherein, The optical lens satisfies the following relationship: -1.6 = (R6+CT3) / R5 = -0.2; and / or, -3.5 = R6 / ET3 = -1.4; and / or, 4.5 = CT3 / CT2 = 9; wherein, R5 is a radius of curvature of an object-side surface of the third lens at an optical axis, R6 is a radius of curvature of an image-side surface of the third lens at the optical axis, CT2 is a thickness of the second lens on the optical axis, CT3 is a thickness of the third lens on the optical axis, ET3 is a distance from a maximum effective aperture of an object-side surface of the third lens to a maximum effective aperture of an image-side surface of the third lens in a direction of the optical axis.

8. The optical lens of claim 1, wherein, The optical lens satisfies the following relationship: 74° = FOV / FNO = 100°; and / or, 1.3 = F4 / CT4 = 2.1; and / or, -6 = F5 / CT5 = -2; wherein, F4 is an effective focal length of the fourth lens, F5 is an effective focal length of the fifth lens, CT4 is a thickness of the fourth lens on the optical axis, CT5 is a thickness of the fifth lens on the optical axis.

9. An image capture module, comprising: The camera module comprises a photosensitive chip and the optical lens according to any one of claims 1 to 8, and the photosensitive chip is arranged on an image side of the optical lens.

10. A terminal device, comprising: The camera module according to claim 9 is arranged in the housing. The camera module according to claim 9 is arranged in the housing.

Images