Optical lens, camera module, and electronic device
By optimizing the shape and focal length configuration of the optical lens and using prisms to change the light path, the problem of large space occupation in telephoto imaging systems has been solved, achieving a compact design of the optical lens within electronic devices and high-quality imaging.
Patent Information
- Application Number
- PCT/CN2025/092068
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-31
- Filing Date
- 2025-04-29
- Publication Date
- 2025-12-04
AI Technical Summary
Long-focus imaging systems are bulky and take up a lot of space, which is not conducive to the trend of making electronic devices thinner and lighter.
Design an optical lens comprising a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged sequentially from the object side to the image side. The shape and focal length of the lenses meet specific conditions to reduce the length and space occupied by the lens group. At the same time, a prism is used to change the light path to adapt to different camera module structures.
It effectively reduces the space occupied by optical lenses in electronic devices, improves image quality, and contributes to the thinning and lightening of electronic devices.
Smart Images

Figure CN2025092068_04122025_PF_FP_ABST
Abstract
Description
Optical lens, camera module and electronic device
[0001] The present application claims priority to the Chinese patent application No. 202410711057.6, filed on May 31, 2024, and entitled "Optical lens, camera module and electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD
[0002] The present application relates to the technical field of terminal devices, and in particular to an optical lens, a camera module and an electronic device. BACKGROUND
[0003] With the rapid development of electronic devices (e.g., mobile phones), users have increasingly high requirements for the shooting level of electronic devices. Therefore, long-focus imaging systems for long-distance shooting are widely used in electronic devices. However, long-focus imaging systems are generally large in size, which occupies a large internal space of the electronic device, and is not conducive to the lightweight development trend of the electronic device. SUMMARY
[0004] Embodiments of the present application provide an optical lens, a camera module and an electronic device, which are used to solve the problem that long-focus imaging systems are large in size, occupy a large space, and are not conducive to the lightweight development trend of the electronic device.
[0005] To achieve the above-mentioned purpose, embodiments of the present application adopt the following technical solutions:
[0006] In a first aspect, an optical lens is provided, which includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens arranged in sequence from an object side to an image side, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the first lens has a positive focal power, the second lens has a negative focal power, and the fifth lens has a positive focal power.
[0007] In the optical lens, along the optical axis direction of the optical lens, the maximum distance between the object side surface of the first lens and the image side surface of the fifth lens is TD, the maximum distance between the object side surface of the first lens and the imaging surface of the optical lens is TTL, the aperture value of the optical lens is FNO, and the optical lens satisfies the conditions: TD / TTL < 0.35 and FNO < 2.6.
[0008] The optical lens provided by the first aspect of the present application has the object side surface of the first lens as a convex surface and the image side surface of the first lens as a concave surface, that is, the incident light rays are first diverged through the object side surface of the first lens and then converged after passing through the image side surface of the first lens, so that the light rays reflected to the second lens are in a converging state, so as to facilitate the light rays to pass through the subsequent lenses and converge on the imaging surface.
[0009] In addition, the sizes of the first lens to the fifth lens satisfy the above condition, which is beneficial to reduce the overall length of the lens set, thereby being beneficial to reduce the space occupied by the optical lens in the electronic device. Moreover, it is beneficial to increase the entrance pupil diameter of the imaging system to improve the imaging quality in a dark environment.
[0010] In a possible implementation of the first aspect of the present application, the object side surface of the second lens and the fifth lens is convex, and the image side surface of the second lens and the fifth lens is concave. In this structure, the light passing through the second lens and the fifth lens is first divergent and then convergent, so that the light reflected by the fifth lens converges on the imaging surface, to further reduce the size of the lens set.
[0011] In a possible implementation of the first aspect of the present application, along the optical axis direction of the optical lens, the distance BFL between the image side surface of the fifth lens and the imaging surface of the optical lens satisfies the condition: TD / BFL < 0.48. In this way, it is beneficial to increase the back focal length of the imaging system of the optical lens, so that the light path after the fourth lens has more possible forms, thereby being more beneficial to reduce the overall height of the imaging system.
[0012] In a possible implementation of the first aspect of the present application, the focal length of the optical lens is f, and the optical lens satisfies the condition: 1.0 < TTL / f < 1.2. In this way, the length of the optical lens can be more reasonably set, so that the size and the imaging quality of the imaging system are better balanced. That is, while reducing the size of the optical lens, the imaging quality can also be guaranteed.
[0013] In a possible implementation of the first aspect of the present application, the focal length of the first lens is f1, the focal length of the fifth lens is f5, and the optical lens satisfies the condition: 0 < f1 / f5 < 0.5. In this way, the optical power of the first lens and the fifth lens can be more reasonably distributed, so that the light is reasonably deflected at the first lens and the fifth lens, which is beneficial to reduce the aberration and sensitivity of the imaging system.
[0014] In a possible implementation of the first aspect of the present application, the focal length of the second lens is f2, the focal length of the third lens is f3, and the optical lens satisfies the condition: -5 < f / f2 + f / f3 < -0.4. In this way, the optical power of the second lens and the third lens can be more reasonably distributed, so that the light trend is smooth, which is beneficial to reduce the aberration of the imaging system.
[0015] In a possible implementation of the first aspect of the present application, along the optical axis direction of the optical lens, the center thickness of the first lens is CT1, the center thickness of the second lens is CT2, the center thickness of the third lens is CT3, the center thickness of the fourth lens is CT4, and the center thickness of the fifth lens is CT5, and the optical lens satisfies the condition: 0.7 < CT1 / (CT2+CT3+CT4+CT5) < 1.7. In this way, the thickness of each lens can be controlled, thereby reducing the volume of the lens group and the length of the optical lens.
[0016] In a possible implementation of the first aspect of the present application, along the optical axis direction of the optical lens, the distance between the first lens and the second lens is T12, the distance between the second lens and the third lens is T23, the distance between the third lens and the fourth lens is T34, and the distance between the fourth lens and the fifth lens is T45, and the optical lens satisfies the condition: 0.15 < (T12+T23+T34+T45) / TD < 0.3. In this way, the volume of the lens group is compressed while ensuring a reasonable assembly space between adjacent lenses.
[0017] In a possible implementation of the first aspect of the present application, the radius of curvature of the object side surface of the second lens is R21, the radius of curvature of the image side surface of the second lens is R22, along the optical axis direction of the optical lens, the center thickness of the second lens is CT2, and the optical lens satisfies the condition: 0.15 < R21 / R22*CT2 < 0.4. In this way, by effectively controlling the shape of the second lens, the light passing through the first lens is smoothly transferred to the subsequent lens, which is conducive to correcting the aberration introduced by the first lens and improving the imaging quality.
[0018] In a possible implementation of the first aspect of the present application, the radius of curvature of the image side surface of the second lens is R22, and the radius of curvature of the object side surface of the third lens is R31, along the optical axis direction of the optical lens, the distance between the second lens and the third lens is T23, and the optical lens satisfies the condition: -0.1 < R22 / R31*T23 < 0.1. In this way, by controlling the shape of the adjacent surfaces of the second lens and the third lens, the light emitted by the second lens can smoothly enter the third lens, thereby correcting part of the aberration and improving the imaging quality.
[0019] In a possible implementation of the first aspect of the present application, the optical lens further includes a prism, and the prism is arranged on the side of the fifth lens away from the first lens. In this structure, the path of the light emitted by the fifth lens can be changed through the prism, thereby adapting to different camera modules.
[0020] In a possible implementation of the first aspect of the present application, the prism is of a reflection type or a transmission type.
[0021] In a possible implementation of the first aspect of the present application, the optical lens further includes a diaphragm, and the diaphragm is arranged on the side of the first lens away from the fifth lens. In this structure, the diaphragm can limit the size of the presented light speed, which is conducive to improving the imaging quality.
[0022] In the second aspect, a camera module is provided, which includes the optical lens and an imaging assembly. The optical lens is the optical lens according to any one of the technical solutions above. The imaging assembly is arranged on the light-out side of the optical lens.
[0023] The camera module provided in the second aspect of the present application can solve the same technical problem and achieve the same technical effect as the optical lens according to any one of the technical solutions above.
[0024] In a possible implementation of the second aspect of the present application, the camera module further includes a reflective prism, and the reflective prism is arranged on the light-in side of the optical lens. In this structure, the camera module forms a periscope camera module, which is conducive to reducing the thickness of the electronic device and increasing the shooting distance of the camera module.
[0025] In the third aspect, an electronic device is provided, which includes a shell and a camera module. The shell is provided with a light-transmitting port. The camera module is the camera module according to any one of the technical solutions above, and the camera module is arranged in the shell, and the light-in side of the camera module faces the light-transmitting port.
[0026] The electronic device provided in the third aspect of the present application can solve the same technical problem and achieve the same technical effect as the camera module according to any one of the technical solutions above. BRIEF DESCRIPTION OF DRAWINGS
[0027] FIG. 1 is a structural diagram of an electronic device according to an embodiment of the present application;
[0028] FIG. 2 is an exploded view of an electronic device according to an embodiment of the present application;
[0029] FIG. 3 is a structural diagram of a camera module according to an embodiment of the present application;
[0030] FIG. 4 is a structural diagram of an optical lens according to an embodiment of the present application;
[0031] FIG. 5 is a structural diagram of another optical lens according to an embodiment of the present application;
[0032] FIG. 6 is a structural diagram of another electronic device (including the optical lens provided in FIG. 5) according to an embodiment of the present application;
[0033] FIG. 7 is a structural diagram of another optical lens according to an embodiment of the present application;
[0034] FIG. 8 is a structural diagram of another electronic device (including the optical lens provided in FIG. 7) according to an embodiment of the present application;
[0035] FIG. 9 is a diagram of various parameter sizes of the optical lens according to an embodiment of the present application;
[0036] FIG. 10 is an axial chromatic aberration characteristic curve diagram of the camera module according to example one of the present application;
[0037] FIG. 11 is a field curvature characteristic curve diagram of the camera module according to example one of the present application;
[0038] FIG. 12 is a distortion characteristic curve diagram of the camera module according to example one of the present application;
[0039] FIG. 13 is an axial chromatic aberration characteristic curve diagram of the camera module according to example two of the present application;
[0040] FIG. 14 is a field curvature characteristic curve diagram of the camera module according to example two of the present application;
[0041] FIG. 15 is a distortion characteristic curve diagram of the camera module according to example two of the present application;
[0042] FIG. 16 is an axial chromatic aberration characteristic curve diagram of the camera module according to example three of the present application;
[0043] FIG. 17 is a field curvature characteristic curve diagram of the camera module according to example three of the present application;
[0044] FIG. 18 is a distortion characteristic curve diagram of the camera module according to example three of the present application;
[0045] FIG. 19 is an axial chromatic aberration characteristic curve diagram of the camera module according to example four of the present application;
[0046] FIG. 20 is a field curvature characteristic curve diagram of the camera module according to example four of the present application;
[0047] FIG. 21 is a distortion characteristic curve diagram of the camera module according to example four of the present application;
[0048] FIG. 22 is an axial chromatic aberration characteristic curve diagram of the camera module according to example five of the present application;
[0049] FIG. 23 is a field curvature characteristic curve diagram of the camera module according to example five of the present application;
[0050] FIG. 24 is a distortion characteristic curve diagram of the camera module according to example five of the present application;
[0051] FIG. 25 is an axial chromatic aberration characteristic curve of the camera module according to the sixth example of the present application;
[0052] FIG. 26 is a field curvature characteristic curve of the camera module according to the sixth example of the present application;
[0053] FIG. 27 is a distortion characteristic curve of the camera module according to the sixth example of the present application.
[0054] Reference signs: 10-electronic device; 100-display module; 110-light-transmitting cover plate; 120-display screen; 200-housing; 210-back cover; 211-light-transmitting port; 220-bezel; 230-middle plate; 300-circuit board; 400-camera module; 410-optical lens; 411-first lens; 412-second lens; 413-third lens; 414-fourth lens; 415-fifth lens; 416-prism; 417-diaphragm 417; 420-imaging assembly; 421-filter; 422-image sensor; 423-reflecting prism; 500-camera decoration cover; 510-light-transmitting window. DETAILED DESCRIPTION
[0055] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.
[0056] Hereinafter, the terms "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features.
[0057] In addition, in the present application, the orientation terms such as "upper", "lower", and the like are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.
[0058] In the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.
[0059] For the convenience of understanding, first, some technical terms that may be involved in the embodiments of the present application are explained.
[0060] Optical axis, the direction of the optical system to conduct light, the reference center of the main light field. That is, the optical axis is a light ray perpendicular to the center of the ideal lens. When the light parallel to the optical axis enters the convex lens, the ideal convex lens should make all the light converge at a point behind the convex lens, which is the focal point.
[0061] Focal length, also known as focal length, is a measure of the optical system to measure the convergence or divergence of light, which refers to the distance from the optical center of the lens to the focal point when the distant object passes through the lens and forms a clear image on the focal plane. Among them, the optical center refers to the point where the light rays in any direction pass through the lens without changing the direction of propagation. For fixed focus lenses, the position of the optical center is fixed, so the focal length is fixed; for zoom lenses, the change of the optical center leads to the change of the focal length, so the focal length can be adjusted.
[0062] Aperture, a device used to control the amount of light passing through the lens into the body of the light-sensitive surface, usually set in the lens.
[0063] Aperture F value, the relative value of the focal length of the lens / lens aperture diameter. The smaller the aperture F value, the more light enters in the same unit of time. The larger the aperture F value, the smaller the depth of field, and the background content of the photograph will be blurred, similar to the effect of long focal length lens.
[0064] Focal power, equal to the difference between the converging degree of the image side and the converging degree of the object side, which represents the ability of the optical system to deflect light. When the refractive index of air is approximately 1, the focal power is usually expressed as the reciprocal of the image side focal length.
[0065] Focal power represents the refractive power of the optical system to incident parallel light beams. The larger the focal power, the more serious the parallel light beam is refracted. When the focal power is greater than 0, the refraction is convergent; when the focal power is less than 0, the refraction is divergent; when the focal power is equal to 0, it is a plane refraction, at this time, the axial parallel light beam is still axial parallel light after refraction, and no refraction phenomenon occurs.
[0066] Total track length (TTL), which refers to the total length from the lens barrel head to the imaging surface, is the main factor in determining the height of the camera.
[0067] Abbe number, i.e. dispersion coefficient, is the difference ratio of the refractive index of optical materials at different wavelengths, which represents the degree of material dispersion.
[0068] The field of view (FOV) in optical instruments is the angle between the two edges of the lens, representing the maximum range through which the image of the target object can pass through the lens. The size of the FOV determines the field of view of the optical instrument; a larger FOV results in a wider field of view but a lower optical magnification.
[0069] The object side and the image side are defined by the lens. The side where the subject is locked is called the object side, and the surface of the lens closest to the object side can be called the object side surface. The side where the image of the subject is located is called the image side, and the surface of the lens closest to the image side can be called the image side surface.
[0070] An aperture stop is an edge, frame, or specially designed perforated barrier in an optical assembly used to limit the size of an imaging beam or a unit of imaging space.
[0071] An aperture stop is an instrument that restricts the imaging of a point light source along the optical axis. The aperture stop limits the size of the imaging beam. The presence of the aperture stop directly affects image quality, including image sharpness, brightness, and depth of field.
[0072] The entrance pupil is the common entrance for light beams emitted from all points on the surface of an object.
[0073] The entrance pupil diameter is the effective aperture that restricts the incident light beam.
[0074] Aberration refers to the difference between the result obtained from non-paraxial ray tracing and paraxial ray tracing in a real optical system.
[0075] The results obtained from ray tracing are inconsistent with the ideal conditions of Gaussian optics (first-order approximation theory or paraxial rays).
[0076] Aberrations are mainly classified into spherical aberration, coma, field curvature, astigmatism, distortion, chromatic aberration, and wave aberration.
[0077] Color difference refers to the change in the color of light.
[0078] Distortion, also known as image distortion, refers to the degree of distortion in the image formed by an optical system relative to the object itself. Distortion occurs due to the spherical aberration of the aperture. The height of the intersection point between the principal ray from different fields of view and the Gaussian image plane is not equal to the ideal image height; this difference is the distortion. Therefore, distortion only changes the imaging position of an off-axis object point on the ideal plane, causing a distortion in the image shape, but it does not affect the image's sharpness.
[0079] Optical distortion refers to the degree of deformation calculated in optical theory.
[0080] Long focal length lens is also called telephoto lens or zoom lens. In the process of shooting distant objects, long focal length lens is needed, which can well show the details of distant objects and shoot some shooting objects that are not easy to approach. In particular, in wildlife photography, a suitable long focal length lens can provide many creative opportunities for photography enthusiasts. However, long focal length lens has a large focal length, so a large axial space is needed for system light path adjustment, which leads to an excessively long total length of the lens, and the lens shape is difficult to realize miniaturization, thereby failing to meet the development trend of light and thin mobile electronic devices.
[0081] Based on this, an electronic device is provided in the embodiments of the present application. Specifically, the electronic device can be a portable electronic device or other types of electronic devices. For example, the electronic device can be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a monitor, a camera, a personal computer, a notebook computer, a wearable device, etc. For the convenience of description below, the electronic device is taken as a mobile phone as an example.
[0082] Please refer to FIG. 1 and FIG. 2, FIG. 1 is a structural diagram of an electronic device 10 provided by the embodiments of the present application, and FIG. 2 is an exploded view of the electronic device 10 provided by the embodiments of the present application. As known from the above, in the present embodiment, the electronic device 10 is a mobile phone, and the electronic device 10 can have an approximately rectangular plate structure. The electronic device 10 can include a display module 100, a housing 200, a circuit board 300, and a camera module 400.
[0083] For the convenience of the following description, an XYZ coordinate system is established, and the width direction of the electronic device 10 is defined as the X-axis direction, the length direction of the electronic device 10 is defined as the Y-axis direction, and the thickness direction of the electronic device 10 is defined as the Z-axis direction. It can be understood that the coordinate system of the electronic device 10 can be flexibly set according to actual needs, and the present application only gives an example and cannot be considered as a special limitation to the present application. FIG. 1 and FIG. 2 only schematically show some components included in the electronic device 10, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 1 and FIG. 2.
[0084] The display module 100 is used for displaying images, videos, etc. The display module 100 can include a light-transmitting cover plate 110 and a display screen 120 (English name: panel, also known as a display panel), and the light-transmitting cover plate 110 and the display screen 120 are stacked. The material of the light-transmitting cover plate 110 includes but is not limited to glass. For example, the light-transmitting cover plate 110 can adopt a common light-transmitting cover plate 110, which is used to protect the display screen 120 to avoid damage of the display screen 120 caused by external force, and can also play a dustproof role. Alternatively, the light-transmitting cover plate 110 can also adopt a light-transmitting cover plate 110 with touch function, so that the electronic device 10 has touch function, thereby making the user use more convenient. Therefore, the specific material of the light-transmitting cover plate 110 is not specially limited in the present application.
[0085] In addition, the display screen 120 can adopt a flexible display screen 120, or a rigid display screen 120. For example, the display screen 120 can be an organic light-emitting diode (OLED) display screen 120, an active-matrix organic light-emitting diode (AMOLED) display screen 120, a mini light-emitting diode display screen 120, a micro light-emitting diode display screen 120, a micro organic light-emitting diode display screen 120, a quantum dot light emitting diode (QLED) display screen 120, or a liquid crystal display (LCD).
[0086] The shell 200 is used to protect the electronic devices inside the electronic device 10. The shell 200 can include a back cover 210 and a frame 220. The back cover 210 is located on the side of the display screen 120 away from the light-transmitting cover plate 110 and is stacked with the light-transmitting cover plate 110 and the display screen 120. The frame 220 is located between the light-transmitting cover plate 110 and the back cover 210. The frame 220 is fixed to the back cover 210. For example, the frame 220 can be fixed to the back cover 210 by adhesion, threaded connection, welding, clamping, or the like. Alternatively, the frame 220 can be integrally formed with the back cover 210, that is, the frame 220 and the back cover 210 form an integral structure. The light-transmitting cover plate 110 can be fixed to the frame 220 by adhesion, so that the light-transmitting cover plate 110, the back cover 210, and the frame 220 form a receiving cavity inside the electronic device 10. The circuit board 300 and the electronic devices are arranged in the receiving cavity.
[0087] In some embodiments, the shell 200 can further include a middle plate 230. The middle plate 230 is arranged in the receiving cavity and is located on the side of the display screen 120 away from the light-transmitting cover plate 110. The middle plate 230 is fixedly connected with the frame 220 to form a middle frame of the electronic device 10. For example, the middle plate 230 and the frame 220 can be fixedly connected by adhesion, threaded connection, welding, clamping, or the like. Alternatively, the middle plate 230 and the frame 220 can be integrally formed, that is, the middle plate 230 and the frame 220 form an integral structure. The middle plate 230 divides the receiving cavity into two independent spaces. One of the spaces is located between the light-transmitting cover plate 110 and the middle plate 230, and the display screen 120 is arranged in the space. The other space is located between the middle plate 230 and the back cover 210, and the circuit board 300 is arranged in the space.
[0088] The circuit board 300 is used to arrange the electronic devices inside the electronic device 10 and realize electrical connection between the electronic devices. The circuit board 300 can be fixed to the middle plate 230 by adhesion, threaded connection, welding, clamping, or the like. Therefore, the application does not specially limit the fixing mode of the circuit board 300.
[0089] In addition, the electronic devices are used to realize various functions of the electronic device 10. For example, the electronic devices can be the camera module 400, a control chip (such as a system on chip, SOC), a graphics processing unit (GPU), a universal flash storage (UFS), a flash module, and capacitors, resistors, inductors, or the like.
[0090] The camera module 400 is used to realize the shooting of video or picture. The camera module 400 can include a main camera, a wide-angle camera, a long-focus camera, etc., and the structural form of the camera module 400 can include a straight type and a periscope type. The camera module 400 can be electrically connected to the circuit board 300 through a flexible connecting member (for example, an FPC board, flexible printed circuit, flexible circuit board 300).
[0091] The camera module 400 has an entrance surface, which can be the entrance surface of the internal lens of the camera module 400. The entrance surface of the camera module 400 faces the back cover 210, and the back cover 210 is provided with a light transmission port 211, the camera module 400 is arranged at the light transmission port 211, and the entrance surface of the camera module 400 faces the light transmission port 211. In some examples, the electronic device 10 can further include a camera decoration cover 500, the camera decoration cover 500 is fixed at the light transmission port 211, the camera decoration cover 500 has a light transmission window 510, and the entrance surface of the camera module 400 faces the light transmission window 510, so that the light from the outside can enter the camera module 400 through the light transmission window 510, thereby realizing the shooting of video or picture of the electronic device 10.
[0092] It can be understood that the camera module 400 can be arranged at a position close to a side edge of the back cover 210 as shown in FIGS. 1 and 2. In other examples, the camera module 400 can also be arranged at other positions on the back cover 210, for example, a middle region on the upper side of the back cover 210. Therefore, the relative position of the camera module 400 and the back cover 210 is not specially limited in the present application.
[0093] Referring to FIG. 3, FIG. 3 is a structural diagram of the camera module 400 provided by an embodiment of the present application. The camera module 400 can include an optical lens 410 and an imaging assembly 420. The optical lens 410 can include a plurality of lenses, and the imaging assembly 420 can include a filter 421 and an image sensor 422, and the surface of the image sensor 422 facing the filter 421 is an imaging surface.
[0094] For example, the camera module 400 can be a long-focus camera, that is, the optical lens 410 thereof is a long-focus lens, and the focal length of the lens is greater than that of a standard lens. Therefore, the camera module 400 can shoot objects or scenes far away, so that the shooting scene of the electronic device 10 is more extensive, which is beneficial to improve the user experience.
[0095] However, as can be known from the foregoing description of the long focal length lens, the long focal length lens has a large focal length and requires a large axial space, resulting in a large total optical length of the long focal length lens. Therefore, when the long focal length lens is applied to the electronic device 10, a large space is occupied, which is not conducive to the thinness of the electronic device 10. For example, for the camera module 400 in a direct-down type, when the long focal length lens is used, the size of the camera module 400 in the thickness direction (i.e., the Z-axis direction) of the electronic device 10 is large, that is, the thickness of the electronic device 10 is not conducive to being reduced.
[0096] To solve the above problems, please refer to FIG. 4, which is a structural diagram of an optical lens 410 provided by an embodiment of the present application. The optical lens 410 can be applied to the camera module 400 or the electronic device 10 described above. The optical lens 410 includes a first lens 411, a second lens 412, a third lens 413, a fourth lens 414, and a fifth lens 415 arranged in sequence from the object side to the image side. The object side of the first lens 411 is convex, and the image side of the first lens 411 is concave. The first lens 411 has positive refractive power, the second lens 412 has negative refractive power, and the fifth lens 415 has positive refractive power.
[0097] Among them, the convex surface of the lens is used to diverge and reflect the light to the concave surface, and the concave surface of the lens is used to converge and reflect the light to the adjacent lens, so that the light is converged on the imaging surface through multiple lenses. That is, the convex surface of the lens has the ability to diverge light, and the concave surface of the lens has the ability to converge light.
[0098] In this way, since the object side of the first lens 411 is convex and the image side of the first lens 411 is concave, that is, the incident light is first diverged through the object side of the first lens 411 and then converged after passing through the image side of the first lens 411, so that the light reflected to the second lens 412 is in a converging state, so that the light passes through the subsequent lenses and converges on the imaging surface.
[0099] In some embodiments, the object side of the second lens 412 and the fifth lens 415 described above can also be convex, and the image side of the second lens 412 and the fifth lens 415 can also be concave. So that the light passing through the second lens 412 and the fifth lens 415 is first diverged and then converged, so that the light emitted by the fifth lens 415 can be converged on the imaging surface, which is conducive to further reducing the length of the lens group.
[0100] In other embodiments, the object side and the image side of the third lens 413 and the fourth lens 414 described above can be concave or convex. It can have positive refractive power or negative refractive power. Therefore, the specific structure of the third lens 413 and the fourth lens 414 is not specially limited in the embodiments of the present application.
[0101] In addition, referring to FIG. 5 and FIG. 6, FIG. 5 is a structural diagram of another optical lens 410 provided by an embodiment of the present application, and FIG. 6 is a structural diagram of another electronic device 10 (including the optical lens 410 provided by FIG. 5) provided by an embodiment of the present application. The optical lens 410 can further include a prism 416, which is arranged on a side of the fifth lens 415 away from the first lens 411, i.e., the prism 416 is arranged on an image side of the fifth lens 415. In this structure, the optical lens 410 can adapt to different structural requirements of the camera module 400 of the electronic device 10.
[0102] For example, in the case that the prism 416 is a reflection type, the prism 416 can change the propagation direction of the light emitted by the fifth lens 415, so that the propagation directions of the incident light and the outgoing light of the prism 416 are different. For example, the incident light of the prism 416 is in the same direction as the optical axis of the plurality of lenses, and the outgoing light of the prism 416 propagates in a direction parallel to the XY plane. Thus, while ensuring that the optical lens 410 has a relatively long total optical length, the length of the optical lens 410 can be reduced, i.e., the thickness of the electronic device 10 can be reduced.
[0103] Alternatively, referring to FIG. 7 and FIG. 8, FIG. 7 is a structural diagram of another optical lens 410 provided by an embodiment of the present application, and FIG. 8 is a structural diagram of another electronic device 10 (including the optical lens provided by FIG. 7) provided by an embodiment of the present application. The prism 416 can also be a transmission type, i.e., the prism 416 is applied to a periscopic camera module 400, i.e., the camera module 400 shown in FIG. 3 further includes a reflecting prism 423, and the optical lens 410 is arranged on a light-emitting side of the reflecting prism 423. Under the action of the prism 416, the total optical length can be further increased, thereby increasing the shooting distance of the camera module 400. At the same time, the periscopic camera module 400 can also reduce the thickness of the electronic device 10, and is more conducive to the thinning of the electronic device 10.
[0104] In other embodiments, the lenses of the optical lens 410 can be made of glass, which has high transmittance, low scattering and absorption, and good chemical stability. For example, silicate, borosilicate, oxalate, fluoride, etc. can be used. Alternatively, the lenses of the optical lens 410 can also be made of plastic material. Plastic material has the advantages of low cost, low processing difficulty, and light weight. For example, PMMA (Polymethyl Methacrylate), PC (Polycarbonate), etc. can be used.
[0105] In addition, the first lens 411, the second lens 412, the third lens 413, the fourth lens 414 and the fifth lens 415 included in the optical lens 410 can be made of the same material or different materials. For example, the first lens 411 and the second lens 412 are made of glass, and the third lens 413, the fourth lens 414 and the fifth lens 415 are made of plastic. Therefore, the material and the structure distribution of the optical lens 410 are not specially limited in the present application.
[0106] On this basis, the lens group composed of the first lens 411, the second lens 412, the third lens 413, the fourth lens 414 and the fifth lens 415 has sufficient parameters to optimize the layout and structure of the optical lens 410, so as to further shorten the total optical length of the optical lens 410 under the premise of the same imaging quality.
[0107] In the optical lens 410, the maximum distance between the object side of the first lens 411 and the image side of the fifth lens 415 is TD, the maximum distance between the object side of the first lens 411 and the imaging surface of the optical lens 410 is TTL (i.e. the total optical length), the aperture value of the lens is FNO, and the optical lens 410 satisfies the conditions: TD / TTL < 0.35 and FNO < 2.6.
[0108] For example, the value of TD / TTL can be 0.1, 0.12, 0.15, 0.18, 0.2, 0.22, 0.24, 0.26, 0.28, 0.3, 0.31, 0.32, 0.33, 0.34, etc.
[0109] In addition, the value of FNO can be 2.59, 2.55, 2.53, 2.51, 2.5, 2.49, 2.48, 2.46, 2.44, 2.42, 2.4, 2.38, 2.35, 2.3, 2.2, 2.1, 2.0, 1.8, 1.5, etc.
[0110] In this way, the sizes of the first lens 411 to the fifth lens 415 satisfy the above conditions, which is beneficial to reduce the overall length of the lens group, thereby reducing the space occupied by the optical lens 410 in the electronic device 10. It is also beneficial to increase the entrance pupil diameter of the imaging system to improve the imaging quality in a dark environment.
[0111] In some embodiments, the optical lens 410 can satisfy: TD / BFL < 0.48, where TD is the distance between the object side surface of the fifth lens 415 and the imaging surface of the lens along the optical axis direction of the optical lens 410. In this way, the back focal length of the imaging system of the optical lens 410 can be increased, and the light path after the fourth lens 414 can have more possible shapes, which is beneficial to reduce the overall height of the imaging system. For example, the value of TD / BFL can be 0.47, 0.46, 0.45, 0.43, 0.41, 0.40, 0.38, 0.36, 0.34, 0.32, 0.3, 0.28, 0.25, 0.2, 0.1, etc.
[0112] In addition, in the optical lens 410 described above, the focal length of the optical lens 410 is f, the focal length of the first lens 411 is f1, the focal length of the second lens 412 is f2, the focal length of the third lens 413 is f3, the focal length of the fourth lens 414 is f4, and the focal length of the fifth lens 415 is f5.
[0113] In some embodiments, the optical lens 410 can satisfy: 1.0 < TTL / f < 1.2, where TTL is the total track length of the optical lens 410. For example, the value of TTL / f can be 1.05, 1.06, 1.08, 1.1, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17, 1.18, 1.19, etc. In this way, the length of the optical lens 410 can be more reasonably set, and the size and imaging quality of the imaging system can be better balanced. That is, while reducing the size of the optical lens 410, the imaging quality can also be ensured.
[0114] The optical lens 410 described above can also satisfy: 0 < f1 / f5 < 0.5. For example, the value of f1 / f5 can be 0.01, 0.01, 0.05, 0.1, 0.11, 0.15, 0.2, 0.25, 0.27, 0.3, 0.35, 0.4, 0.41, 0.42, 0.43, 0.45, 0.47, 0.48, etc. In this way, the optical power of the first lens 411 and the fifth lens 415 can be more reasonably distributed, so that the light is reasonably deflected at the first lens 411 and the fifth lens 415, which is beneficial to reduce the aberration and sensitivity of the imaging system.
[0115] In addition, the optical lens 410 can also satisfy -5 < f / f2+f / f3 < -0.4. For example, the value of f / f2+f / f3 can be -4.5, -4.3, -4.17, -4.11, -4, -3.5, -3, -2, -1.5, -1.09, -0.92, -0.7, -0.54, -0.5, -0.41, etc. In this way, the optical power of the second lens 412 and the third lens 413 can be more reasonably distributed, so that the light path is smooth, thereby more favorably reducing the aberration of the imaging system.
[0116] In some embodiments, along the optical axis direction of the optical lens 410, the center thickness of the first lens 411 is CT1, the center thickness of the second lens 412 is CT2, the center thickness of the third lens 413 is CT3, the center thickness of the fourth lens 414 is CT4, and the center thickness of the fifth lens 415 is CT5. The distance between the first lens 411 and the second lens 412 is T12, the distance between the second lens 412 and the third lens 413 is T23, the distance between the third lens 413 and the fourth lens 414 is T34, and the distance between the fourth lens 414 and the fifth lens 415 is T45.
[0117] The optical lens 410 can satisfy 0.7 < CT1 / (CT2+CT3+CT4+CT5) < 1.7. For example, the value of CT1 / (CT2+CT3+CT4+CT5) can be 0.72, 0.8, 0.82, 0.9, 1, 1.1, 1.15, 1.2, 1.34, 1.4, 1.5, 1.53, 1.6, etc. In this way, the thickness of each lens can be favorably controlled, thereby reducing the volume of the lens group and the length of the optical lens 410.
[0118] In addition, the optical lens 410 can also satisfy 0.15 < (T12+T23+T34+T45) / TD < 0.3. For example, the value of (T12+T23+T34+T45) / TD can be 0.16, 0.17, 0.18, 0.19, 0.2, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, etc. In this way, while the volume of the lens group is compressed, a reasonable assembly space between adjacent lenses can also be ensured.
[0119] It can be understood that the center thickness of the lens and the distance between the two adjacent lenses are based on the point through which the optical axis of the lens passes, i.e., the distance through which the optical axis of the lens passes is the center thickness of the lens, and the length of the optical axis between the two adjacent lenses is the distance between the two adjacent lenses.
[0120] On the basis of the above, the radius of curvature of the object side surface of the second lens 412 is R21, the radius of curvature of the image side surface of the second lens 412 is R22, and the optical lens 410 can satisfy the condition: 0.15 < R21 / R22*CT2 < 0.4. For example, the value of R21 / R22*CT2 can be 0.16, 0.17, 0.18, 0.19, 0.2, 0.23, 0.25, 0.26, 0.28, 0.3, 0.31, 0.35, 0.38, etc. In this way, by effectively controlling the shape of the second lens 412, the light passing through the first lens 411 is smoothly transferred to the subsequent lens, which is conducive to correcting the aberration introduced by the first lens 411, thereby improving the imaging quality.
[0121] In addition, the radius of curvature of the object side surface of the third lens 413 is R31, and the optical lens 410 can also satisfy the condition: -0.1 < R22 / R31*T23 < 0.1. For example, the value of R22 / R31*T23 can be -0.09, -0.08, -0.07, -0.06, -0.05, -0.01, 0, 0.0005, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.091, etc. In this way, by controlling the shape of the adjacent surfaces of the second lens 412 and the third lens 413, the light emitted by the second lens 412 can smoothly enter the third lens 413, thereby correcting part of the aberration and improving the imaging quality.
[0122] Based on this, the camera module 400 using the above-mentioned optical lens 410 (all of which satisfy the above conditions) is exemplified as follows.
[0123] Example One
[0124] In Example One, a camera module 400 is provided, which includes the above-mentioned optical lens 410, and the parameters of the optical lens 410 (including the values of the above-mentioned conditional expressions) are shown in Table 1.
[0125] Table 1
[0126] The related parameters of each lens of the above-mentioned optical lens 410 are shown in Table 2.
[0127] Table 2
[0128] The positive and negative distribution of the refractive power of each lens of the above-mentioned optical lens 410, as well as the concave-convex distribution of the object side surface and the image side surface, are shown in Table 3.
[0129] Table 3
[0130] The aspheric coefficients of each lens of the optical lens 410 are shown in Table 4.
[0131] Table 4
[0132] Based on this, referring to FIG. 10, FIG. 11 and FIG. 12, FIG. 10 is an axial chromatic aberration characteristic curve diagram of the camera module 400 provided in Example One of the present application, FIG. 11 is a field curvature characteristic curve diagram of the camera module 400 provided in Example One of the present application, and FIG. 12 is a distortion characteristic curve diagram of the camera module 400 provided in Example One of the present application.
[0133] Since the smaller the axial chromatic aberration, field curvature and distortion curve of the camera module 400 deviates from the ordinate axis of zero point, the better, it can be seen from FIG. 10, FIG. 11 and FIG. 12 that the axial chromatic aberration, field curvature and distortion of the camera module 400 provided in the present example are small, and the camera module 400 has good optical performance, thereby ensuring that the camera module 400 has good imaging quality.
[0134] Example Two
[0135] In Example Two, a camera module 400 is provided, which includes the optical lens 410 described above, and the parameters of the optical lens 410 (including the numerical values of the above conditions) are shown in Table 5.
[0136] Table 5
[0137] The related parameters of each lens of the optical lens 410 described above are shown in Table 6.
[0138] Table 6
[0139] The positive and negative distribution of the refractive power of each lens of the optical lens 410 described above, and the concave-convex distribution of the object side and the image side are shown in Table 7.
[0140] Table 7
[0141] The aspheric coefficients of each lens of the optical lens 410 described above are shown in Table 8.
[0142] Table 8
[0143] Based on this, referring to FIG. 13, FIG. 14 and FIG. 15, FIG. 13 is an axial chromatic aberration characteristic curve diagram of the camera module 400 provided in Example Two of the present application, FIG. 14 is a field curvature characteristic curve diagram of the camera module 400 provided in Example Two of the present application, and FIG. 15 is a distortion characteristic curve diagram of the camera module 400 provided in Example Two of the present application.
[0144] Since the smaller the axial chromatic aberration, the field curvature and the distortion of the camera module 400 deviate from the zero point of the longitudinal coordinate axis, the better, as can be seen from FIGS. 13, 14 and 15, the axial chromatic aberration, the field curvature and the distortion of the camera module 400 provided in the present example are small, which has good optical performance, so as to ensure that the camera module 400 has good imaging quality.
[0145] Example Three
[0146] In Example Three, a camera module 400 is provided, which comprises the optical lens 410 described above, and the parameters of the optical lens 410 (including the numerical values of the above conditions) are shown in Table 9.
[0147] Table 9
[0148] The related parameters of each lens of the optical lens 410 described above are shown in Table 10.
[0149] Table 10
[0150] The positive and negative distribution of the refractive power of each lens of the optical lens 410 described above, and the concave-convex distribution of the object side and the image side are shown in Table 11.
[0151] Table 11
[0152] The aspheric coefficients of each lens of the optical lens 410 described above are shown in Table 12.
[0153] Table 12
[0154] Based on this, please refer to FIGS. 16, 17 and 18, FIG. 16 is an axial chromatic aberration characteristic curve of the camera module 400 provided in Example Three of the present application, FIG. 17 is a field curvature characteristic curve of the camera module 400 provided in Example Three of the present application, and FIG. 18 is a distortion characteristic curve of the camera module 400 provided in Example Three of the present application.
[0155] Since the smaller the axial chromatic aberration, the field curvature and the distortion of the camera module 400 deviate from the zero point of the longitudinal coordinate axis, the better, as can be seen from FIGS. 16, 17 and 18, the axial chromatic aberration, the field curvature and the distortion of the camera module 400 provided in the present example are small, which has good optical performance, so as to ensure that the camera module 400 has good imaging quality.
[0156] Example Four
[0157] In Example Four, a camera module 400 is provided, which includes the optical lens 410 described above, and the parameters of the optical lens 410 (including the numerical values of the conditional expressions described above) are shown in Table 13.
[0158] Table 13
[0159] The related parameters of each lens of the optical lens 410 described above are shown in Table 14.
[0160] Table 14
[0161] The positive and negative distribution of the refractive power of each lens of the optical lens 410 described above, and the concave-convex distribution of the object side and the image side are shown in Table 15.
[0162] Table 15
[0163] The aspheric coefficients of each lens of the optical lens 410 described above are shown in Table 16.
[0164] Table 16
[0165] Based on this, please refer to FIG. 19, FIG. 20 and FIG. 21, FIG. 19 is an axial chromatic aberration characteristic curve diagram of the camera module 400 provided in Example Four of the embodiments of the present application, FIG. 20 is a field curvature characteristic curve diagram of the camera module 400 provided in Example Four of the embodiments of the present application, and FIG. 21 is a distortion characteristic curve diagram of the camera module 400 provided in Example Four of the embodiments of the present application.
[0166] Since the smaller the axial chromatic aberration, the field curvature and the distortion of the camera module 400 deviate from the ordinate axis of zero point, the better, it can be seen from FIG. 19, FIG. 20 and FIG. 21 that the axial chromatic aberration, the field curvature and the distortion of the camera module 400 provided in the present example are small, and the camera module 400 has good optical performance, so that the camera module 400 can ensure good imaging quality.
[0167] Example Five
[0168] In Example Five, a camera module 400 is provided, which includes the optical lens 410 described above, and the parameters of the optical lens 410 (including the numerical values of the conditional expressions described above) are shown in Table 17.
[0169] Table 17
[0170] The related parameters of each lens of the optical lens 410 described above are shown in Table 18.
[0171] Table 18
[0172] The positive and negative distribution of the refractive power of each lens of the optical lens 410, and the concave-convex distribution of the object side and the image side are shown in Table 19.
[0173] Table 19
[0174] The aspheric coefficients of each lens of the optical lens 410 are shown in Table 20.
[0175] Table 20
[0176] Based on this, referring to FIG. 22, FIG. 23 and FIG. 24, FIG. 22 is an axial chromatic aberration characteristic curve diagram of the camera module 400 provided in Example Five of the present application, FIG. 23 is a field curvature characteristic curve diagram of the camera module 400 provided in Example Five of the present application, and FIG. 24 is a distortion characteristic curve diagram of the camera module 400 provided in Example Five of the present application.
[0177] Since the axial chromatic aberration, the field curvature and the distortion of the camera module 400 deviate from the zero point of the ordinate axis as small as possible, it can be seen from FIG. 22, FIG. 23 and FIG. 24 that the axial chromatic aberration, the field curvature and the distortion of the camera module 400 provided in the present example are small, and the camera module 400 has good optical performance, thereby ensuring that the camera module 400 has good imaging quality.
[0178] Example Six
[0179] In Example Six, a camera module 400 is provided, which includes the optical lens 410 described above, and the parameters of the optical lens 410 (including the numerical values of the above conditions) are shown in Table 21.
[0180] Table 21
[0181] The related parameters of each lens of the optical lens 410 are shown in Table 22.
[0182] Table 22
[0183] The positive and negative distribution of the refractive power of each lens of the optical lens 410, and the concave-convex distribution are shown in Table 23.
[0184] Table 23
[0185] The aspheric coefficients of each lens of the optical lens 410 are shown in Table 24.
[0186] Table 24
[0187] Based on this, referring to FIG. 25, FIG. 26 and FIG. 27, FIG. 25 is an axial chromatic aberration characteristic curve diagram of the camera module 400 provided in the sixth example of the embodiments of the present application, FIG. 26 is a field curvature characteristic curve diagram of the camera module 400 provided in the sixth example of the embodiments of the present application, and FIG. 27 is a distortion characteristic curve diagram of the camera module 400 provided in the sixth example of the embodiments of the present application.
[0188] Since the axial chromatic aberration, the field curvature and the distortion of the camera module 400 deviate from the zero point of the ordinate axis as small as possible, it can be seen from FIG. 25, FIG. 26 and FIG. 27 that the axial chromatic aberration, the field curvature and the distortion of the camera module 400 provided in the present example are small, and the camera module 400 has good optical performance, thereby ensuring that the camera module 400 has good imaging quality.
[0189] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0190] The above describes only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An optical lens characterized in that, The optical lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens arranged in sequence from an object side to an image side, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the first lens has positive refractive power, the second lens has negative refractive power, and the fifth lens has positive refractive power; In the direction of the optical axis of the optical lens, the maximum distance between the object side surface of the first lens and the image side surface of the fifth lens is TD, the maximum distance between the object side surface of the first lens and the imaging surface of the optical lens is TTL, the aperture value of the optical lens is FNO, and the optical lens satisfies the conditions: TD / TTL < 0.35 and FNO < 2.
6.
2. The optical lens of claim 1, wherein, The object side surface of the second lens and the object side surface of the fifth lens are both convex surfaces, and the image side surface of the second lens and the image side surface of the fifth lens are both concave surfaces.
3. The optical lens according to claim 1 or 2, characterized in that, In the direction of the optical axis of the optical lens, the distance between the image side surface of the fifth lens and the imaging surface of the optical lens is BFL, and the optical lens satisfies the condition: TD / BFL < 0.
48.
4. The optical lens according to any one of claims 1 to 3, characterized in that, The focal length of the optical lens is f, and the optical lens satisfies the condition: 1.0 < TTL / f < 1.
2.
5. The optical lens according to any one of claims 1 to 4, characterized in that, The focal length of the first lens is f1, the focal length of the fifth lens is f5, and the optical lens satisfies the condition: 0 < f1 / f5 < 0.
5.
6. The optical lens for any one of claims 1 to 5, wherein, The focal length of the second lens is f2, the focal length of the third lens is f3, and the optical lens satisfies the condition: -5 < f / f2 + f / f3 < -0.
4.
7. The optical lens according to any one of claims 1 to 6, characterized in that, In the direction of the optical axis of the optical lens, the central thickness of the first lens is CT1, the central thickness of the second lens is CT2, the central thickness of the third lens is CT3, the central thickness of the fourth lens is CT4, and the central thickness of the fifth lens is CT5, and the optical lens satisfies the condition: 0.7 < CT1 / (CT2 + CT3 + CT4 + CT5) < 1.
7.
8. The optical lens for any one of claims 1 to 7, wherein, In the direction of the optical axis of the optical lens, the distance between the first lens and the second lens is T12, the distance between the second lens and the third lens is T23, the distance between the third lens and the fourth lens is T34, and the distance between the fourth lens and the fifth lens is T45, and the optical lens satisfies the condition: 0.15 < (T12 + T23 + T34 + T45) / TD < 0.
3.
9. The optical lens for any one of claims 1 to 8, wherein, The radius of curvature of the object side surface of the second lens is R21, and the radius of curvature of the image side surface of the second lens is R22; in the direction of the optical axis of the optical lens, the central thickness of the second lens is CT2, and the optical lens satisfies the condition: 0.15 < R21 / R22*CT2 < 0.
4.
10. The optical lens for any of claims 1-9, wherein, The radius of curvature of the image side surface of the second lens is R22, and the radius of curvature of the object side surface of the third lens is R31; in the direction of the optical axis of the optical lens, the distance between the second lens and the third lens is T23, and the optical lens satisfies the condition: -0.1 < R22 / R31*T23 < 0.
1.
11. The optical lens for any one of claims 1 to 10, wherein, The optical lens further comprises a prism, which is arranged on the side of the fifth lens away from the first lens.
12. The optical lens of claim 11, wherein, The prism is of a reflection type or a transmission type.
13. The optical lens for any of claims 1-11, wherein, The optical lens further comprises a diaphragm, which is arranged on the side of the first lens away from the fifth lens.
14. A camera module, comprising: Comprise: An optical lens according to any one of claims 1-13; An imaging assembly arranged on the light-out side of the optical lens.
15. The camera module of claim 14, wherein, The camera module further comprises a reflection prism, which is arranged on the light-in side of the optical lens.
16. An electronic device, comprising: Comprise: A housing, wherein a light-transmitting opening is formed on the housing; A camera module according to claim 14 or 15, which is arranged in the housing, and the light-in surface of the camera module faces the light-transmitting opening.
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