Optical lens, camera module and electronic device

Abstract

Provided in the present application are an optical lens, a camera module and an electronic device. The optical lens comprises a first optical element, a second optical element, a third optical element and a fourth optical element, which are spaced apart from each other in order from the object side to the image side. The first optical element changes the propagation direction of an optical axis from a first direction to a second direction, the second direction intersecting the first direction. During a zooming process of the optical lens, the first optical element and the third optical element are fixed lens groups, and the second optical element and the fourth optical element can move in the second direction. The first optical element has positive focal power, and the focal length f1 of the first optical element and the focal length ft of the optical lens at a telephoto end satisfy: 0.2≤|f1 / ft|≤0.9. By means of designing the focal length of the first optical element, the present application enables the first optical element to have good focusing capability, thus increasing the amount of incoming light of optical lenses, and helping to realize the miniaturization design of optical lenses.

Description

Optical lens, camera module and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202411013873.6, filed on July 25, 2024, and entitled "Optical lens, camera module and electronic device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of optical lens, in particular to an optical lens, a camera module and an electronic device. BACKGROUND

[0003] With the development of technology, the demand for photographing of electronic devices (for example, mobile phones) is increasingly high, and higher zoom range, higher imaging quality and the like put forward higher requirements for mobile phone lenses.

[0004] Generally, the high-magnification optical zoom of mobile phone lenses is basically "jumping" zoom, which is realized by respectively mounting 2 to 3 lenses with different focal lengths and combining with algorithm-based digital zoom to achieve hybrid optical zoom. At present, the lenses that realize continuous zoom usually have a large size, which is not conducive to the miniaturization design of electronic devices. SUMMARY

[0005] The present application provides an optical lens, a camera module and an electronic device. The optical lens comprises a first optical element, a second optical element, a third optical element and a fourth optical element which are sequentially and spaced apart from each other along the object side to the image side. The focal length of the first optical element is designed to make the first optical element have good focusing ability, thereby improving the light amount of the optical lens and being conducive to the miniaturization design of the optical lens.

[0006] In a first aspect, the present application provides an optical lens. The optical lens comprises a first optical element, a second optical element, a third optical element and a fourth optical element which are sequentially and spaced apart from each other along the object side to the image side. The first optical element changes the propagation direction of the optical axis from a first direction to a second direction, and the second direction intersects the first direction. In the zooming process of the optical lens, the first optical element and the third optical element are fixed lens groups, and the second optical element and the fourth optical element can move along the second direction. The first optical element has positive focal power, and the focal length f1 of the first optical element and the focal length ft of the optical lens at the long focal end satisfy: 0.2≤|f1 / ft|≤0.9.

[0007] In the present application, the first optical element has positive focal power, so that the first optical element has light focusing capability, which is beneficial to improve the light intake of the first optical element, thereby improving the light intake of the entire optical lens, which is beneficial to improve the imaging quality of the camera module. The focal length of the first optical element satisfies the above relationship, so that the first optical element has a smaller focal length, thereby making the first optical element have stronger focusing capability, which is beneficial to improve the light intake of the first optical element, so as to improve the overall light intake of the optical lens, thereby being beneficial to improve the imaging quality of the camera module. At the same time, the focal length of the first optical element is ensured not to be too small, which is beneficial to balance the sensitivity of the second optical element, and is beneficial to the second optical element to finely adjust the focusing position of the light when moving, thereby providing more accurate zoom effect. Therefore, the optical lens of the present application is beneficial to realize miniaturization and continuous zoom.

[0008] In some possible implementation manners, the first optical element is arranged to be rotatable about the first direction, and / or the second direction, and / or the third direction, the third direction intersecting both the first direction and the second direction.

[0009] In the present implementation manner, the first optical element is rotated to realize anti-shake, which improves the anti-shake performance of the camera module and is beneficial to improve the imaging stability of the camera module. In addition, since the first lens group and the first light path folding element rotate together to realize anti-shake, the first optical element can still have sufficient light intake during the anti-shake process, thereby improving the imaging quality of the camera module.

[0010] When the first light path folding element is a mirror, the weight of the first light path folding element is relatively light, so that the driving required for anti-shake is relatively small, which can reduce the overall volume and weight of the anti-shake driving, and is beneficial to the miniaturization of the camera module.

[0011] In some possible implementation manners, the first optical element includes a first lens group and a first light path folding element; the first lens group has positive focal power, and the first lens group is located on the object side of the first light path folding element.

[0012] In the present implementation manner, the first lens group has positive focal power, so that the first lens group can have a light focusing effect, so that as much external light as possible enters the first light path folding element, thereby improving the light intake of the entire first optical element and being beneficial to improve the light intake of the subsequent second optical element.

[0013] In some possible implementation manners, the first light path folding element is a mirror, and at this time, the mirror surface of the mirror forms a first reflection surface. The first lens group can be fixed with the first light path folding element through a lens barrel or the like, so that the relative position of the entrance surface and the first reflection surface is fixed. At this time, the first reflection surface is also the exit surface of the first optical element.

[0014] In some possible implementation manners, the first light path folding element is a prism.

[0015] In the implementation manner, the first lens group and the first light path folding element are fixedly installed through the prism, so that the overall stability of the first optical element is improved.

[0016] In some possible implementation manners, the first light path folding element is a prism, and the first lens group and the first light path folding element are glued, so that the connection stability between the first lens group and the first light path folding element is improved, the overall stability of the first optical element is improved, and the installation of the first lens group and the first light path folding element is facilitated. When the first lens group and the first light path folding element are glued, the first optical element can be a monolithic structure, and the internal alignment installation is not required when the first optical element is assembled with other optical elements, so that the installation difficulty is reduced, the installation efficiency is improved, and the optical performance of the first optical element is better.

[0017] In some possible implementation manners, the first optical element is a monolithic structure, in other words, the first optical element is a special prism with a monolithic structure, and the first lens group and the first light path folding element are structures of different parts in the first optical element, so that the structural stability of the first optical element is improved, and the installation efficiency of the optical lens is improved.

[0018] In some possible implementation manners, the first light path folding element is a prism, and the refractive index Nd of the first light path folding element satisfies: Nd≤2.1.

[0019] In the implementation manner, the value of the refractive index Nd of the first light path folding element satisfies the above relationship, and because the refractive index Nd is inversely proportional to the Abbe number, the Abbe number of the first light path folding element is relatively high, so that the dispersion performance is relatively high, so that the residual chromatic aberration is not generated, and the design difficulty of the lens group located on the image side is reduced.

[0020] In some possible implementation manners, the first optical element includes an incident surface and a first reflection surface arranged from an object side to an image side; the incident surface is a convex surface at an optical axis, and the first reflection surface is configured to change the propagation direction of the optical axis from a first direction to a second direction.

[0021] In the implementation manner, the incident surface of the first optical element is configured to enable the first optical element to have focusing capability, so that the light amount is improved, and sufficient light amount is provided in the zooming process of the optical lens.

[0022] The first reflective surface can be a plane to have good processability. Alternatively, the first reflective surface can correct aberrations such as astigmatism when reflecting light, to further improve image quality or reduce volume. For example, the first reflective surface can also be a spherical surface, a cylindrical surface, or a free-form surface. The spherical surface can be a convex surface or a concave surface. The cylindrical surface has curvature in one direction and extends linearly in another direction.

[0023] The first reflective surface can also be provided with a high-reflection film to improve the reflection efficiency, so that the light of the light beam is completely reflected or nearly completely reflected into the subsequent optical element.

[0024] In some possible implementation manners, the curvature radius L1S1R of the incident surface and the focal length ft of the optical lens at the telephoto end satisfy: 0.4≤L1S1R / ft≤3.

[0025] In the implementation manner, the curvature radius of the incident surface satisfies the above relationship, so that the first optical element has good focusing capability at the incident surface, to improve the light intake. Meanwhile, by designing the curvature radius of the incident surface, the light intake performance and the optical zoom performance of the second optical element can be better balanced.

[0026] The incident surface of the first optical element can be a spherical surface to reduce the processing difficulty. In other embodiments, the incident surface can also be an aspherical surface.

[0027] In some possible implementation manners, the second optical element has negative optical power, and the focal length f2 of the second optical element and the focal length ft of the optical lens at the telephoto end satisfy: 0.1≦|f2 / ft|≦0.6.

[0028] In the implementation manner, the focal length of the second optical element satisfies the above relationship, to balance the stroke and sensitivity of the second optical element, so as to facilitate the second optical element to adjust the focal length in a wider range, and to facilitate the second optical element to finely adjust the focusing position of the light when moving, thereby providing more accurate zoom effect, and further improving the imaging quality of the camera module.

[0029] In some possible implementation manners, the fourth optical element has negative optical power, and the focal length f4 of the fourth optical element and the focal length ft of the optical lens at the telephoto end satisfy: 0.1≦|f4 / ft|≦0.7.

[0030] In the present implementation, since the fourth optical element has a negative optical power, it can be used to compensate for aberration to improve the imaging quality of the camera module. In addition, since the fourth optical element can have astigmatism capability, so that the light rays exiting via the fourth optical element can cover a larger range, which is conducive to better covering the imaging surface of the image sensor to achieve better imaging effect. In addition, through the cooperation of the optical powers of the third optical element and the fourth optical element, the optical path can be improved, which is conducive to reducing the length of the camera module, thereby facilitating the miniaturization of the camera module. The focal length of the fourth optical element satisfies the above relationship, which can balance the stroke and sensitivity of the fourth optical element, is conducive to the fourth optical element to realize focal length adjustment in a wider range, and is conducive to the fourth optical element to more finely adjust the focusing position of the light rays when moving, thereby providing more accurate zoom effect, and further improving the imaging quality of the camera module.

[0031] In some possible implementations, the optical lens has a macro imaging state, and in the macro imaging state, the optical magnification β of the optical lens satisfies: β≥0.2, and / or the minimum shooting distance of the optical lens is ≥100mm.

[0032] In the present implementation, the optical magnification of the optical lens in the macro imaging state satisfies the above relationship, so that the optical lens has strong close-up capability, improves the flexibility of shooting, and is conducive to improving the imaging quality of close-up shooting. The minimum shooting distance of the optical lens in the macro imaging state satisfies the above relationship, so that the optical lens has strong close-up capability, improves the flexibility of shooting, and is conducive to improving the close-up shooting experience.

[0033] In some possible implementations, in the macro imaging state, the fourth optical element moves along the second direction towards the image side for focusing, and the movement range of the fourth optical element is within 0-4mm.

[0034] In the present implementation, in the macro imaging state, focusing is achieved by moving the fourth optical element, so that the object photographed by the camera module is clearer, which is conducive to improving the shooting quality.

[0035] In some possible implementations, the third optical element has a positive optical power, and the focal length f3 of the third optical element and the focal length ft of the optical lens at the telephoto end satisfy: 0.1≦|f3 / ft|≦0.7.

[0036] In the present implementation, the third optical element has positive focal power, so that the third optical element has light condensing capability, which is conducive to increasing the light quantity of the third optical element, so as to sufficiently receive the light rays emitted by the second optical element, which is conducive to the fourth optical element having sufficient light quantity, and further conducive to increasing the light quantity incident on the image sensor, thereby improving the imaging quality of the camera module. In addition, through the cooperation of the focal power of the second optical element and the third optical element, the optical path can be increased, which is conducive to reducing the length of the camera module, thereby facilitating the miniaturization of the camera module. The focal length of the third optical element satisfies the above relationship, so that the third optical element can have strong light condensing capability, thereby facilitating the connection of the light transmission of the second optical element and the fourth optical element, ensuring sufficient light quantity, and further improving the imaging quality of the camera module. In addition, through the design of the focal length of the third optical element, the travel and sensitivity of the second optical element and the fourth optical element can be balanced, and the second optical element and the fourth optical element can more finely adjust the focusing position of the light when moving, thereby providing more accurate zooming effect, and further improving the imaging quality of the camera module.

[0037] In some possible implementation manners, the optical lens further includes a fifth optical element, the fifth optical element is located on the image side of the fourth optical element, and the fifth optical element is configured to fold the optical axis and change the propagation direction of the optical axis from the second direction to the fourth direction, the fourth direction intersects the first direction and the second direction.

[0038] In the present implementation, the fifth optical element can change the propagation direction of the optical path, increase the optical path, and thus play a role in size compression, thereby facilitating the miniaturization of the camera module.

[0039] In the present implementation, the image sensor can be arranged to be inclined relative to the second direction, so that the image sensor can be arranged to be inclined, thereby reducing the height of the camera module at the image sensor, i.e., reducing the shoulder height of the camera module, and facilitating the thinning of the camera module.

[0040] In some possible implementation manners, the fifth optical element is an oblique-angle prism, the angle of the acute angle of the fifth optical element closest to the image side is the smallest, and the angle range is 27.5°±10°.

[0041] In the present implementation, the angle satisfies the above relationship, which is conducive to the better folding of the optical path by the fifth optical element, and provides a better inclination angle for the image sensor, thereby facilitating the reduction of the shoulder height of the camera module and the thinning of the camera module.

[0042] In other possible implementation manners, the fifth optical element is a right-angle prism, i.e., the light-transmitting surface of the fifth optical element is perpendicular to the third reflecting surface. Since the fifth optical element has a right angle, the fifth optical element can be more stably installed in the camera module, thereby improving the installation stability of the fifth optical element.

[0043] In some possible implementation manners, the image height of the optical lens at the long-focus end is smaller than the image height of the optical lens at the short-focus end, so that the object visually far away looks more "small" or more "compact" when the optical lens is at the long-focus end, which helps to highlight the shooting subject, reduce background interference, and enhance the simplicity and impact of the picture.

[0044] In some possible implementation manners, the field of view angle of the optical lens is ≤ 40°.

[0045] In the implementation manner, the field of view angle satisfies the above relationship, so that the optical lens can have a larger focal length adjustment range, which is conducive to realizing a larger focal length.

[0046] In a second aspect, the present application provides a camera module. The camera module comprises an image sensor and any of the optical lenses described above, and the image sensor is located on the image side of the optical lens.

[0047] In the present application, the optical lens is designed to realize continuous zooming and miniaturization, so that the camera module can have a continuous zooming function and can be miniaturized, thereby reducing the space required for installing the camera module.

[0048] In some possible implementation manners, the image sensor is configured to be movable along the direction of the optical axis perpendicular to the incident direction of light to the image sensor.

[0049] In the implementation manner, during the focusing process of the camera module, the image sensor can move along the direction of the optical axis perpendicular to the incident direction of light to the image sensor, thereby realizing the focusing of the camera module. Therefore, the second optical element and the fourth optical element can be used only for continuous zooming, and the focusing is realized by the image sensor, which is conducive to the stability of the imaging of the camera module.

[0050] In a third aspect, the present application provides an electronic device. The electronic device comprises an image processor and any of the camera modules described above, the image processor is in communication connection with the camera module, and the image processor is configured to acquire image data from the camera module and process the image data.

[0051] In the implementation manner, the camera module is designed to realize continuous zooming, which improves the use experience of the electronic device. By designing the miniaturization of the camera module, the space occupied by the camera module in the electronic device is reduced, which is conducive to improving the space utilization of the electronic device and helping the electronic device to realize the design of lightness and thinness. BRIEF DESCRIPTION OF DRAWINGS

[0052] FIG. 1A is a structural schematic diagram of an electronic device in some embodiments according to an embodiment of the present application;

[0053] FIG. 1B is a partially exploded structural schematic diagram of the electronic device shown in FIG. 1A;

[0054] FIG. 2 is a structural schematic diagram of the camera module in the electronic device shown in FIG. 1A, in which the optical lens is at the telephoto end in some embodiments;

[0055] FIG. 3 is a structural schematic diagram of various states of the optical lens in the camera module shown in FIG. 2;

[0056] FIG. 4 is an optical path structure diagram of the camera module shown in FIG. 3 in some use states;

[0057] FIG. 5 is a simulation effect diagram of the optical lens in the camera module shown in FIG. 3 at the wide-angle end in a possible embodiment;

[0058] FIG. 6 is a simulation effect diagram of the optical lens in the camera module shown in FIG. 3 at the intermediate state in a possible embodiment;

[0059] FIG. 7 is a simulation effect diagram of the optical lens in the camera module shown in FIG. 3 at the telephoto end in a possible embodiment;

[0060] FIG. 8 is a structural schematic diagram of the camera module in the electronic device shown in FIG. 1A, in which the optical lens is at the telephoto end in other embodiments;

[0061] FIG. 9 is a structural schematic diagram of various states of the optical lens in the camera module shown in FIG. 8;

[0062] FIG. 10 is an optical path structure diagram of the camera module shown in FIG. 9 in some use states;

[0063] FIG. 11 is a simulation effect diagram of the optical lens in the camera module shown in FIG. 9 at the wide-angle end in a possible embodiment;

[0064] FIG. 12 is a simulation effect diagram of the optical lens in the camera module shown in FIG. 9 at the intermediate state in a possible embodiment;

[0065] FIG. 13 is a simulation effect diagram of the optical lens in the camera module shown in FIG. 9 at the telephoto end in a possible embodiment. DETAILED DESCRIPTION

[0066] For the convenience of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application are explained and described below.

[0067] Focal power, equal to the difference between the convergence degree of the image-side light beam and the convergence degree of the object-side light beam, which represents the ability of the optical system to deflect light rays.

[0068] A lens or lens group with positive focal power has a positive focal length and has the effect of converging light rays.

[0069] A lens or lens group having a negative focal length has a diverging effect on light rays.

[0070] Focal length, also called focal length, is a measure of the convergence or divergence of light in an optical system, which refers to the vertical distance from the optical center of the lens or lens group to the focal plane when the object at infinity forms a clear image through the lens or lens group. From a practical point of view, it can be understood as the distance from the lens center to the plane when the object is at infinity. For a fixed focus lens, the position of the optical center is fixed; for an optical lens, the change of the optical center of the lens brings the change of the focal length of the lens.

[0071] Object side, with the lens as the boundary, the side where the object is located is the object side, and the surface of the lens close to the object side is called the object side.

[0072] Image side, with the lens as the boundary, the side where the image of the object is located is the image side, and the surface of the lens close to the image side is called the image side.

[0073] Aperture diaphragm, which is used to control the amount of light that enters the lens into the body of the light-sensitive surface, it is usually in the lens.

[0074] F-number, also known as F-number, is the relative value (the reciprocal of the relative aperture) derived from the focal length of the lens / the diameter of the entrance pupil of the lens. The smaller the F-number, the more light will enter in the same unit of time. The larger the F-number, the smaller the depth of field, and the background content of the photograph will be blurred, similar to the effect of an optical lens.

[0075] Imaging surface, located on the image side of all lenses in the optical lens, and the light forms an image after passing through each lens in the optical lens.

[0076] Optical axis, an axis perpendicular to the center of the lens. The optical axis of the lens is the axis passing through the center of each lens in the lens. When parallel light enters the convex lens, the ideal convex lens should be all the light converging at a point behind the lens, and this point where all the light converges is called the focal point.

[0077] Focal point, the converging point of parallel light after refraction through the lens or lens group.

[0078] Abbe number (Abbe), i.e. dispersion coefficient, is the difference ratio of the refractive index of optical material at different wavelengths, which represents the degree of material dispersion.

[0079] Field of view (FOV), in optical instruments, the angle between the two edges of the maximum range of the object image of the measured target that can pass through the lens of the optical instrument, with the lens as the vertex, is called the field of view. The size of the field of view determines the field of view of the optical instrument. The larger the field of view, the larger the field of view, and the smaller the optical magnification.

[0080] Half sensor diagonal line ImgH (Image Hight), which represents half of the diagonal line length of the effective pixel area on the photosensitive chip, that is, the image height of the imaging surface.

[0081] Aberration, the near-axis region of an optical system has the properties of an ideal optical system, a point on the object emits near-axis light rays that intersect at a point on the image plane (i.e. near-axis image point), but the light rays passing through different apertures of the lens are difficult to perfectly intersect at a point, and there is a certain deviation from the position of the near-axis image point. These differences are collectively referred to as aberration.

[0082] Longitudinal spherical aberration (longitudinal spherical aberration), also known as longitudinal chromatic aberration or position chromatic aberration or axial aberration, a bundle of parallel light rays to the optical axis will converge at different positions before and after passing through the lens. This aberration is called position chromatic aberration or axial aberration. This is because the lens images different wavelengths of light at different positions, so that the image plane of different colors cannot coincide when finally imaged, and the dispersion of complex color light is formed.

[0083] Distortion, also known as distortion, the degree of distortion of the image formed by the optical system relative to the object itself. Distortion is due to the influence of the stop spherical aberration, the intersection height of the chief ray of different fields passing through the optical system and the ideal image height is not equal, and the difference between the two is the distortion. Therefore, distortion only changes the imaging position of the off-axis object point on the ideal surface, causing the shape of the image to be distorted, but does not affect the clarity of the image.

[0084] Astigmatism, since the object point is not on the optical axis of the optical system, the light beam emitted by the object point has an inclination angle with the optical axis. After the light beam is refracted by the lens, the convergence points of the meridional pencil and the sagittal pencil are not on the same point. That is, the light beam cannot be focused on a point, and the image is not clear, so astigmatism is generated. Meridional pencil and sagittal pencil are the names of light beams in two perpendicular planes in a rotationally symmetric optical system.

[0085] Meridian plane, the plane formed by the chief ray (main light beam) of the off-axis object point and the optical axis, called the meridian plane.

[0086] Sagittal surface, the plane passing through the chief ray (main light beam) of the off-axis object point and perpendicular to the meridian plane, called the sagittal surface.

[0087] Curvature of field, curvature of field is used to indicate the difference between the most clear image point position of non-central field light after passing through the optical lens group and the most clear image point position of central field in the optical axis. When the lens has curvature of field, the intersection of the whole light beam does not coincide with the ideal image point, although a clear image point can be obtained at each specific point, but the whole image plane is a curved surface.

[0088] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0089] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or indirect connection through intermediate medium. "Multiple" means at least two.

[0090] The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side" and the like, are only the direction of reference to the drawings, therefore, the orientation terms used are for better and clearer illustration and understanding of the embodiments of the present application, and are not indicative or implicit of the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the embodiments of the present application.

[0091] In the embodiments of the present application, the relative positional relationship mentioned, such as parallel, vertical, aligned and the like. These limits are all for the current process level, and are not absolute strict limits, allowing a small amount of deviation, approximately parallel, approximately vertical, approximately aligned and the like can be. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, the included angle between A and B can be between 0 degrees and 10 degrees. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, the included angle between A and B can be between 80 degrees and 100 degrees.

[0092] In the embodiments of the present application, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third", "fourth" can explicitly or implicitly include one or more of the features.

[0093] Please refer to FIG. 1A and FIG. 1B, FIG. 1A is a structural schematic diagram of an electronic device 100 in some embodiments provided by the embodiments of the present application; FIG. 1B is a partially exploded structural schematic diagram of the electronic device 100 shown in FIG. 1A.

[0094] In some embodiments, the electronic device 100 can be a mobile phone, a tablet personal computer, a laptop computer, a smart screen, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, or a VR helmet, or the like device with a camera function. In the embodiment of FIG. 1A, the electronic device 100 is taken as an example of a mobile phone, and of course, other types of electronic devices 100 can also have a similar structure, which will not be described hereinafter.

[0095] It can be understood that FIGS. 1A and 1B only schematically show some components included in the electronic device 100, and the actual shape, actual size, actual position, and actual structure of these components are not limited by FIGS. 1A and 1B. The electronic device 100 can also include more or fewer components than FIGS. 1A and 1B.

[0096] In some embodiments, the electronic device 100 can include a camera module 10, a screen 20, and a housing 30. The screen 20 is used to display images, videos, and the like. The screen 20 can include a light-transmitting panel 201 and a display screen 202. The light-transmitting panel 201 and the display screen 202 are stacked and fixedly connected. The light-transmitting panel 201 is mainly used to protect and prevent dust from the display screen 202. The material of the light-transmitting panel 201 includes but is not limited to glass. The display screen 202 can be a flexible display screen or a rigid display screen. For example, the display screen 202 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a quantum dot light emitting diode (QLED) display screen, a liquid crystal display (LCD), or the like.

[0097] The housing 30 is configured to protect the internal electronic components of the electronic device 100. The housing 30 can include a cover plate 301, a frame 302, and a camera decoration 303. The cover plate 301 is located on the side of the display screen 202 away from the light-transmitting panel 201, and is stacked with the light-transmitting panel 201 and the display screen 202. The frame 302 is fixed to the cover plate 301. In an example, the frame 302 can be fixed to the cover plate 301 by adhesive. The frame 302 can also be integrally formed with the cover plate 301, i.e., the frame 302 and the cover plate 301 are an integral structure. The frame 302 is located between the cover plate 301 and the light-transmitting panel 201. The light-transmitting panel 201 can be fixed to the frame 302 by adhesive. The light-transmitting panel 201, the cover plate 301, and the frame 302 form an internal accommodating space of the electronic device 100. The internal accommodating space accommodates the display screen 202. The cover plate 301 can be made of metal, plastic, glass, or the like. The cover plate 301 can be a single material plate or a plate structure made of multiple materials and multiple plate blocks. The cover plate 301 has a mounting hole, and the camera decoration 303 covers and is fixed to the mounting hole.

[0098] The camera module 10 is configured to take photos and / or videos. In an example, the camera module 10 is installed in the housing 30 and located in the internal accommodating space of the electronic device 100. The camera module 10 can be used as a rear camera. For example, the light entrance surface of the camera module 10 faces the camera decoration 303. The camera decoration 303 is configured to protect the camera module 10.

[0099] In some embodiments, the camera decoration 303 protrudes to the side of the cover plate 301 away from the light-transmitting panel 201. In this way, the camera decoration 303 can increase the installation space of the camera module 10 in the thickness direction of the electronic device 100. In other embodiments, the camera decoration 303 can be flush with the cover plate 301 or recessed into the internal accommodating space of the electronic device 100.

[0100] The camera decoration 303 has a through hole 3031. The through hole 3031 allows light from the scene to enter the light entrance surface of the camera module 10. In other embodiments, the electronic device 100 can not include the camera decoration 303. In this case, the cover plate 301 no longer has the mounting hole, and the through hole 3031 is provided on the cover plate 301. The through hole 3031 allows light from the scene to enter the light entrance surface of the camera module 10.

[0101] In some embodiments, the camera module 10 can also be used as a front camera. For example, the light entrance surface of the camera module 10 faces the light-transmitting panel 201. The display screen 202 is provided with a light path avoiding hole. The light path avoiding hole allows the scene light to pass through the light-transmitting panel 201 and then enter the light entrance surface of the camera module 10. In some other embodiments, the electronic device 100 can further include one or more other camera modules (not shown in the figure), which are not strictly limited in the embodiments of the present application.

[0102] In some embodiments, as shown in FIG. 1B, the electronic device 100 can further include a circuit board assembly 40 and an image processor 50, which are located in the internal accommodation space of the electronic device 100, and the image processor 50 is fixed to and electrically connected to the circuit board assembly 40. The image processor 50 is in communication connection with the camera module 10. The image processor 50 is configured to acquire image data from the camera module 10 and process the image data. The communication connection between the camera module 10 and the image processor 50 can include data transmission through electrical connection such as wiring, or data transmission through coupling. It can be understood that the camera module 10 and the image processor 50 can also be in communication connection through other data transmission modes.

[0103] In some embodiments, the electronic device 100 can further include an analog-to-digital converter (also referred to as an A / D converter, not shown in the figure). The analog-to-digital converter is connected between the camera module 10 and the image processor 50. The analog-to-digital converter is configured to convert the signal generated by the camera module 10 into a digital image signal and transmit the digital image signal to the image processor 50. The digital image signal is processed by the image processor 50, and finally displayed on the screen 20.

[0104] In some embodiments, the electronic device 100 can further include a memory (not shown in the figure), which is in communication connection with the image processor 50. After the image processor 50 processes the image digital signal, the image is transmitted to the memory, so that the image can be found from the memory at any time when it is needed to view the image and displayed on the screen 20. In some embodiments, the image processor 50 can also compress the processed image digital signal and store it in the memory, so as to save the memory space.

[0105] In some other embodiments, the electronic device 100 can also not include the screen 20.

[0106] It can be understood that the mounting position of the camera module 10 of the electronic device 100 shown in FIGS. 1A and 1B is merely illustrative, and the application does not strictly limit the mounting position of the camera module 10. In some other embodiments, the camera module 10 can also be mounted at other positions of the electronic device 100, for example, the camera module 10 can be mounted at the upper middle or upper right corner of the back of the electronic device 100. In some other embodiments, the electronic device 100 can include a terminal body and an auxiliary component capable of rotating, moving or detaching relative to the terminal body, and the camera module 10 can also be arranged on the auxiliary component.

[0107] Please refer to FIGS. 2 to 4, FIG. 2 is a structural schematic diagram of the camera module 10 in the electronic device 100 shown in FIG. 1A, in which the optical lens 1 is at the telephoto end in some embodiments; FIG. 3 is a structural schematic diagram of various states of the optical lens 1 in the camera module 10 shown in FIG. 2; and FIG. 4 is an optical path structure diagram of the camera module 10 shown in FIG. 3 in some use states.

[0108] In some embodiments, the camera module 10 can include the optical lens 1, the image sensor 2 and the optical filter 3. The image sensor 2 is located at the image side of the optical lens 1. The camera module 10 can further include a circuit board (not shown in the figure), and the image sensor 2 can be fixed to the circuit board. The optical filter 3 can be located between the optical lens 1 and the image sensor 2. Light can pass through the optical lens 1 to irradiate the photosensitive surface of the image sensor 2.

[0109] For example, the working principle of the camera module 10 is as follows: the light reflected by the photographed object passes through the optical lens to generate an optical image and project the optical image to the photosensitive surface of the image sensor 2, the image sensor 2 converts the optical image into an electric signal (i.e. an analog image signal) and transmits the electric signal to an analog-to-digital converter, so as to convert the electric signal into a digital image signal by the analog-to-digital converter and transmit the digital image signal to the image processor 50.

[0110] The image sensor 2 (also referred to as a photosensitive element) is a semiconductor chip including hundreds of thousands to millions of photodiodes on its surface, which generate electric charges when exposed to light. The image sensor 2 can be a charge coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS). The charge coupled device is made of a high-sensitivity semiconductor material and can convert light into electric charges. The charge coupled device is composed of a large number of light-sensitive units, usually in units of millions of pixels. When the surface of the charge coupled device is exposed to light, each light-sensitive unit reflects electric charges on the component, and the signals generated by all the light-sensitive units are added together to form a complete picture. The complementary metal-oxide semiconductor is mainly made of silicon and germanium, two elements that coexist on the complementary metal-oxide semiconductor as N (negative) and P (positive) semiconductors. The electric current generated by the two complementary effects can be recorded and interpreted into images by a processing chip.

[0111] The optical lens 1 mainly uses the refraction principle of lenses to form an image, that is, the light of the scene passes through the optical lens 1 to form a clear image on the focal plane, and the image sensor 2 located on the focal plane records the image of the scene.

[0112] The filter 3 is used to filter out unnecessary wave bands in light to prevent the image sensor 2 from generating false colors or ripples and to improve its effective resolution and color restoration. For example, the filter 3 can be an infrared filter 3. In this embodiment, the filter 3 is a separate component, and in some other embodiments, the filter 3 structure can be omitted, and surface treatment or material treatment is performed on at least one optical element of the optical lens 1 to achieve filtering. The present application does not strictly limit the specific embodiments of the structure or structure used to achieve filtering.

[0113] The optical lens 1 can be a straight lens or a periscope lens. In this embodiment, the optical lens 1 is described as a periscope lens. When the optical lens 1 is a periscope lens, it can be better applied to the thin electronic device 100.

[0114] In some embodiments, the optical lens 1 can include a first optical element G1, a second optical element G2, a third optical element G3, and a fourth optical element G4, which are sequentially and spaced apart from each other along the object side to the image side. The first optical element G1 changes the propagation direction of the optical axis from a first direction Z to a second direction X, and the first direction Z intersects the second direction X.

[0115] For example, during zooming, the first optical element G1 and the third optical element G3 are fixed lens groups, and the second optical element G2 and the fourth optical element G4 can move along the second direction X. The second optical element G2 can also be used for focusing, or the fourth optical element G4 can also be used for focusing.

[0116] For example, in the case of continuous zooming, the second optical element G2 can have a first moving range, and the fourth optical element G4 can have a second moving range. By moving the second optical element G2 in the first moving range and moving the fourth optical element G4 in the second moving range, the optical lens 1 can change between multiple states, for example, as shown in FIG. 3, the optical lens 1 has a wide-angle end, an intermediate state, and a telephoto end from top to bottom, and the dashed lines between different states represent the position changes of the corresponding optical elements. By moving the second optical element G2 and the fourth optical element G4 respectively, the state changes shown in FIG. 3 can be achieved. The intermediate state is a state during the conversion between the wide-angle end and the telephoto end, and the relative positions between the optical elements are not limited. It should be noted that the optical lens 1 can also change between other states by moving the second optical element G2 and the fourth optical element G4. FIGS. 2 and 3 are only illustrative and do not limit the states that the optical lens 1 can achieve.

[0117] For example, in the case of continuous zooming, the second optical element G2 can have a first moving range, and the fourth optical element G4 can have a second moving range. By moving the second optical element G2 in the first moving range and moving the fourth optical element G4 in the second moving range, the optical lens 1 can change between multiple states, for example, as shown in FIG. 3, the optical lens 1 has a wide-angle end, an intermediate state, and a telephoto end from top to bottom, and the dashed lines between different states represent the position changes of the corresponding optical elements. By moving the second optical element G2 and the fourth optical element G4 respectively, the state changes shown in FIG. 3 can be achieved. The intermediate state is a state during the conversion between the wide-angle end and the telephoto end, and the relative positions between the optical elements are not limited. It should be noted that the optical lens 1 can also change between other states by moving the second optical element G2 and the fourth optical element G4. FIGS. 2 and 3 are only illustrative and do not limit the states that the optical lens 1 can achieve.

[0118] For example, the first optical element G1 can have positive refractive power. In this embodiment, the first optical element G1 has positive refractive power, so that the first optical element G1 has light focusing capability, which is beneficial to improve the light intake of the first optical element G1, thereby improving the light intake of the entire optical lens 1 and improving the imaging quality of the camera module 10.

[0119] The ratio of the focal length f1 of the first optical element G1 to the focal length ft of the optical lens 1 at the long-focus end can satisfy 0.2≤|f1 / ft|≤0.9. For example, the ratio of the focal length f1 of the first optical element G1 to the focal length f of the optical lens 1 at the long-focus end can be, but is not limited to, 0.2, or 0.25, or 0.3, or 0.35, or 0.4, or 0.45, or 0.5, or 0.55, or 0.6, or 0.65, or 0.7, or 0.75, or 0.8, or 0.85, or 0.9, or other values between 0.2 and 0.9.

[0120] In this embodiment, the focal length f1 of the first optical element G1 satisfies the above relationship, so that the first optical element G1 has a smaller focal length, thereby making the first optical element G1 have stronger focusing ability, which is conducive to improving the light amount of the first optical element G1, so as to improve the overall light amount of the optical lens 1, thereby being conducive to improving the imaging quality of the camera module 10. At the same time, it is ensured that the focal length of the first optical element G1 will not be too small, which is conducive to taking into account the sensitivity of the second optical element G2, and is conducive to the second optical element G2 being able to more finely adjust the focusing position of the light when moving, thereby providing more accurate zoom effect.

[0121] Therefore, the optical lens 1 of the embodiment of the present application is conducive to realizing miniaturization and continuous zooming.

[0122] In some embodiments, the first optical element G1 includes an incident surface 101 and a first reflection surface 102 arranged from the object side to the image side. The incident surface 101 is convex at the optical axis, and the first reflection surface 102 is used to change the propagation direction of the optical axis from the first direction Z to the second direction X.

[0123] In this embodiment, the incident surface 101 of the first optical element G1, so that the first optical element G1 can have focusing ability, thereby being conducive to improving the light amount, and further being conducive to providing sufficient light amount during the zooming process of the optical lens 1.

[0124] For example, the ratio of the curvature radius L1S1R of the incident surface 101 to the focal length ft of the optical lens 1 at the long-focus end can be, but is not limited to, 0.4, or 0.6, or 0.8, or 1, or 1.2, or 1.4, or 1.6, or 1.8, or 2, or 2.2, or 2.4, or 2.6, or 2.8, or 3, or other values between 0.4 and 3.

[0125] In the embodiment, the curvature radius of the incident surface 101 satisfies the above relationship, so that the first optical element G1 can have good focusing ability at the incident surface 101, so as to improve the light amount. At the same time, by designing the curvature radius of the incident surface 101, the light collecting performance and the optical zoom performance of the second optical element G2 can be better balanced.

[0126] In the embodiment, the incident surface 101 of the first optical element G1 can be a spherical surface, so as to reduce the processing difficulty. In other embodiments, the incident surface 101 can also be an aspherical surface.

[0127] For example, the first reflective surface 102 can be a plane, so as to have good processability. In other embodiments, the first reflective surface 102 can also correct aberrations such as astigmatism when reflecting light, so as to further improve the image quality or reduce the volume. For example, the first reflective surface 102 can also be a spherical surface, a cylindrical surface or a free-form surface. The spherical surface can be a convex surface or a concave surface. The cylindrical surface has curvature in one direction and extends linearly in the other direction. For example, the first reflective surface 102 can also be provided with a high-reflection film, so as to improve the reflection efficiency, so that the light rays of the light beam are completely reflected or nearly completely reflected into the subsequent optical element.

[0128] For example, the first optical element G1 can also include an exit surface 103 on the image side of the first reflective surface 102, for emitting light to the second optical element G2.

[0129] In some embodiments, the first optical element G1 can include a first lens group 11 and a first light path folding element 12. The first lens group 11 can have positive focal power, the object side of the first lens group 11 is the incident surface 101, and the first lens group 11 is located on the object side of the first light path folding element 12. The first light path folding element 12 includes the first reflective surface 102.

[0130] In the embodiment, the first lens group 11 has positive focal power, so that the first lens group 11 can have a condensing effect, so that as many external light rays as possible enter the first light path folding element 12, thereby improving the light amount of the entire first optical element G1, which is beneficial to improving the light amount of the subsequent second optical element G2.

[0131] For example, the first lens group 11 can include one or more lenses.

[0132] In some examples, the first light path folding element 12 can be a prism, and the image side of the first lens group 11 can be fixed to the object side of the first light path folding element 12. The image side of the first light path folding element 12 is the exit surface 103.

[0133] In the embodiment, the first lens group 11 and the first light path folding element 12 are fixedly installed through the prism structure, thereby improving the overall stability of the first optical element G1.

[0134] In the embodiment, the first lens group 11 and the first light path folding element 12 can be glued, thereby improving the connection stability between the first lens group 11 and the first light path folding element 12, improving the overall stability of the first optical element G1, and facilitating the installation of the first lens group 11 and the first light path folding element 12. When the first lens group 11 and the first light path folding element 12 are glued, the first optical element G1 can be a whole structure, and the internal alignment installation is not required when the first optical element G1 is assembled with other optical elements, thereby reducing the installation difficulty, improving the installation efficiency, and improving the optical performance of the first optical element G1. In other embodiments, the connection between the first lens group 11 and the first light path folding element 12 can also be realized by the stamping process.

[0135] In the embodiment, the first lens group 11 and the first light path folding element 12 can be glued, thereby improving the connection stability between the first lens group 11 and the first light path folding element 12, improving the overall stability of the first optical element G1, and facilitating the installation of the first lens group 11 and the first light path folding element 12. When the first lens group 11 and the first light path folding element 12 are glued, the first optical element G1 can be a whole structure, and the internal alignment installation is not required when the first optical element G1 is assembled with other optical elements, thereby reducing the installation difficulty, improving the installation efficiency, and improving the optical performance of the first optical element G1. In other embodiments, the connection between the first lens group 11 and the first light path folding element 12 can also be realized by the stamping process.

[0136] In the embodiment, the first lens group 11 and the first light path folding element 12 can be glued, thereby improving the connection stability between the first lens group 11 and the first light path folding element 12, improving the overall stability of the first optical element G1, and facilitating the installation of the first lens group 11 and the first light path folding element 12. When the first lens group 11 and the first light path folding element 12 are glued, the first optical element G1 can be a whole structure, and the internal alignment installation is not required when the first optical element G1 is assembled with other optical elements, thereby reducing the installation difficulty, improving the installation efficiency, and improving the optical performance of the first optical element G1. In other embodiments, the connection between the first lens group 11 and the first light path folding element 12 can also be realized by the stamping process.

[0137] In the embodiment, the value of the refractive index Nd of the first light path folding element 12 satisfies the above relationship, and since the refractive index Nd is inversely proportional to the Abbe number, the Abbe number of the first light path folding element 12 is relatively high, thereby having a relatively high dispersion performance, so as to ensure that no excessive residual chromatic aberration is generated, and the design difficulty of the lens group located on the image side thereof is reduced.

[0138] In the embodiment, the first lens group 11 and the first light path folding element 12 can be glued, thereby improving the connection stability between the first lens group 11 and the first light path folding element 12, improving the overall stability of the first optical element G1, and facilitating the installation of the first lens group 11 and the first light path folding element 12. When the first lens group 11 and the first light path folding element 12 are glued, the first optical element G1 can be a whole structure, and the internal alignment installation is not required when the first optical element G1 is assembled with other optical elements, thereby reducing the installation difficulty, improving the installation efficiency, and improving the optical performance of the first optical element G1. In other embodiments, the connection between the first lens group 11 and the first light path folding element 12 can also be realized by the stamping process.

[0139] In other embodiments, a gap can also be provided between the object side surface of the first lens group 11 and the first light path folding element 12. In this case, the first lens group 11 and the first light path folding element 12 can be fixed to each other through a lens barrel or other structural member.

[0140] In some examples, the first light path folding element 12 can also be a mirror, and the mirror surface of the mirror forms the first reflecting surface 102. The first lens group 11 can be fixed with the first light path folding element 12 by a lens barrel or the like, so that the relative position of the incident surface 101 and the first reflecting surface 102 is fixed. At this time, the first reflecting surface 102 is also the exit surface 103 of the first optical element G1.

[0141] In some examples, during the anti-shake process, the first optical element G1 can rotate around the first direction Z, and / or the second direction X, and / or the third direction Y, wherein the third direction Y can intersect with both the first direction Z and the second direction X.

[0142] In the present embodiment, the anti-shake is achieved by rotating the first optical element G1, which improves the anti-shake performance of the camera module 10 and is conducive to improving the imaging stability of the camera module 10. In addition, since the first lens group 11 and the first light path folding element 12 rotate together to achieve anti-shake, it is still possible to ensure that the first optical element G1 has sufficient light during the anti-shake process, thereby improving the imaging quality of the camera module 10.

[0143] When the first light path folding element 12 is a mirror, the weight of the first light path folding element 12 is relatively light, so that the driving required for anti-shake is relatively small, which can reduce the overall volume and weight of the anti-shake driving, and is conducive to the miniaturization of the camera module 10.

[0144] Please continue to refer to FIGS. 2 and 3. In some examples, the second optical element G2 can have a negative focal length. In the present embodiment, since the second optical element G2 has a negative focal length, the second optical element G2 can have a diverging effect, which can diverge the light emitted by the first optical element G1. In addition, by matching the focal lengths of the second optical element G2 and the first optical element G1, the optical path can be increased, which is conducive to shortening the length of the optical lens 1, thereby shortening the module length of the camera module 10, so as to save the internal space of the electronic device 100.

[0145] For example, the ratio of the focal length f2 of the second optical element G2 to the focal length ft of the optical lens 1 at the telephoto end can be, but is not limited to, 0.1, or 0.15, or 0.2, or 0.25, or 0.3, or 0.35, or 0.4, or 0.45, or 0.5, or 0.55, or 0.6, or other values between 0.1 and 0.6.

[0146] In the embodiment, the focal length of the second optical element G2 satisfies the above relationship, which can balance the stroke and sensitivity of the second optical element G2, is conducive to the second optical element G2 to realize focal length adjustment in a wide range, and is conducive to the second optical element G2 to more finely adjust the focusing position of the light when moving, thereby providing more accurate zoom effect, and further improving the imaging quality of the camera module 10.

[0147] The second optical element G2 can include one or more lenses.

[0148] In some embodiments, the third optical element G3 can have positive optical power. In the embodiment, the third optical element G3 has positive optical power, so that the third optical element G3 has light condensing capability, which is conducive to improving the light amount of the third optical element G3, thereby sufficiently receiving the light emitted by the second optical element G1, which is conducive to the fourth optical element G4 having sufficient light amount, and further conducive to improving the light amount incident on the image sensor 2, thereby improving the imaging quality of the camera module 10. In addition, through the cooperation of the focal lengths of the second optical element G2 and the third optical element G3, the optical path can be improved, which is conducive to reducing the length of the camera module 10, thereby facilitating the miniaturization of the camera module 10.

[0149] For example, the ratio of the focal length f3 of the third optical element G3 to the focal length ft of the optical lens 1 at the telephoto end can be, but is not limited to, 0.1, or 0.15, or 0.2, or 0.25, or 0.3, or 0.35, or 0.4, or 0.45, or 0.5, or 0.55, or 0.6, or 0.65, or 0.7, or other values between 0.1 and 0.7.

[0150] In the embodiment, the focal length of the third optical element G3 satisfies the above relationship, so that the third optical element G3 can have stronger light condensing capability, thereby facilitating the connection of the light transmission of the second optical element G2 and the fourth optical element G4, ensuring sufficient light amount, and further improving the imaging quality of the camera module 10. In addition, through the design of the focal length of the third optical element G3, the stroke and sensitivity of the second optical element G2 and the fourth optical element G4 can be balanced, and the second optical element G2 and the fourth optical element G4 can more finely adjust the focusing position of the light when moving, thereby providing more accurate zoom effect, and further improving the imaging quality of the camera module 10.

[0151] The third optical element G3 can include one or more lenses.

[0152] In some embodiments, the fourth optical element G4 can have a negative focal power. In the present embodiment, since the fourth optical element G4 has a negative focal power, it can be used to compensate for aberration to improve the imaging quality of the camera module 10. In addition, since the fourth optical element G4 can have an astigmatism capability, it can make the light rays exiting via the fourth optical element G4 cover a larger range, which is beneficial to better cover the imaging surface of the image sensor 2 to achieve better imaging effect. In addition, through the cooperation of the focal powers of the third optical element G3 and the fourth optical element G4, the optical path can be improved, which is beneficial to reduce the length of the camera module 10, thereby facilitating the miniaturization of the camera module 10.

[0153] For example, the ratio of the focal length f4 of the fourth optical element G4 to the focal length ft of the optical lens 1 at the telephoto end can be, but is not limited to, 0.1, or 0.15, or 0.2, or 0.25, or 0.3, or 0.35, or 0.4, or 0.45, or 0.5, or 0.55, or 0.6, or 0.65, or 0.7, or other values between 0.1 and 0.7.

[0154] In the present embodiment, the focal length of the fourth optical element G4 satisfies the above relationship, which can balance the stroke and sensitivity of the fourth optical element G4, is beneficial to the fourth optical element G4 to realize focal length adjustment in a wider range, and is beneficial to the fourth optical element G4 to more finely adjust the focusing position of the light rays when moving, thereby providing more accurate zoom effect and further improving the imaging quality of the camera module 10.

[0155] In some embodiments, the optical lens 1 can have a macro imaging state, so that the optical lens 1 has a macro shooting capability, which is beneficial to the optical lens 1 to shoot close and small objects.

[0156] For example, when the optical lens 1 is in the macro imaging state, the optical magnification β can be, but is not limited to, 0.2, or 0.22, or 0.24, or 0.26, or 0.28, or 0.3, or 0.32, or 0.34, or 0.36, or 0.38, or 0.4, or 0.42, or other values greater than 0.2.

[0157] In the present embodiment, the optical magnification of the optical lens 1 in the macro imaging state satisfies the above relationship, so that the optical lens 1 has a strong close-up capability, which improves the flexibility of shooting and is beneficial to improve the imaging quality of close-up shooting.

[0158] Exemplarily, in the macro imaging state, the minimum shooting distance of the optical lens 1 is ≥100 mm. For example, when the optical lens 1 is in the macro imaging state, the minimum shooting distance of the optical lens 1 can be, but is not limited to, 100 mm, or 110 mm, or 120 mm, or 130 mm, or 140 mm, or 150 mm, or 160 mm, or 170 mm, or 180 mm, or 190 mm, or 200 mm, or other values greater than 100 mm.

[0159] In this embodiment, the minimum shooting distance of the optical lens 1 in the macro imaging state satisfies the above relationship, so that the optical lens 1 has strong close-up capability, improves the flexibility of shooting, and is beneficial to improve the close-up shooting experience.

[0160] In the macro imaging state, the fourth optical element G4 moves along the second direction X towards the image side for focusing, and the movement range of the fourth optical element G4 is within the range of 0-4 mm. For example, the movement range of the fourth optical element G4 can be, but is not limited to, 0, or 0.5 mm, or 1 mm, or 1.5 mm, or 2 mm, or 2.5 mm, or 3 mm, or 3.5 mm, or 4 mm, or within the range of 0-4 mm.

[0161] In this embodiment, in the macro imaging state, focusing is achieved by moving the fourth optical element G4, so that the object photographed by the camera module 10 is clearer, which is beneficial to improve the shooting quality.

[0162] In this embodiment, the fourth optical element G4 can include one or more lenses.

[0163] Please continue to participate in FIG. 2 and FIG. 3, in some embodiments, the optical lens 1 can also include a fifth optical element G5, the fifth optical element G5 is located on the image side of the fourth optical element G4, and the fifth optical element G5 is used to fold the optical axis and change the propagation direction of the optical axis from the second direction X to the fourth direction X', the fourth direction X' intersects with the first direction Z and the second direction X.

[0164] In this embodiment, the fifth optical element G5 can change the propagation direction of the light path, improve the optical path, and thus play a role in size compression, which is beneficial to realize the miniaturization of the camera module 10.

[0165] Exemplarily, the image sensor 2 can be inclined relative to the second direction X, so that the image sensor 2 can be inclined, reducing the height of the camera module 10 at the image sensor 2, i.e. reducing the shoulder height of the camera module 10, which is beneficial to realize the thinning of the camera module 10.

[0166] For example, the fifth optical element G5 includes the light-transmitting surface 104, the second reflecting surface 105, and the third reflecting surface 106 arranged in sequence. The light emitted by the fourth optical element G4 is incident on the light-transmitting surface 104 and enters the interior of the fifth optical element G5. The light can be reflected for the first time at the second reflecting surface 105 and reflected to the third reflecting surface 106, and then reflected for the second time at the third reflecting surface 106 and reflected back to the second reflecting surface 105 and transmitted through the second reflecting surface 105 and emitted to the image sensor 2.

[0167] In this way, the second reflecting surface 105 reflects and transmits the light twice due to different angles of incidence of the light on the second reflecting surface 105. Specifically, the light is incident on the second reflecting surface 105 at a large incident angle for the first time, so that total reflection is achieved. The light is incident on the second reflecting surface 105 along the fourth direction X' perpendicularly or approximately perpendicularly for the second time, so that transmission is achieved.

[0168] In some examples, the fifth optical element G5 can be an oblique-angle prism, that is, the light-transmitting surface 104 and the third reflecting surface 106 of the fifth optical element G5 are arranged at an obtuse angle. In this case, the acute angle of the fifth optical element G5 near the image side is the smallest, and the angle range of the acute angle is 27.5°±10°. For example, the value of the acute angle can be, but is not limited to, 17.5°, or 19.5°, or 21.5°, or 23.5°, or 25.5°, or 27.5°, or 29.5°, or 31.5°, or 33.5°, or 35.5°, or 37.5°, or other values before 17.5° to 37.5°.

[0169] In this embodiment, the acute angle satisfies the above relationship, which is beneficial to better folding of the light path by the fifth optical element G5 and provides a better tilt angle for the image sensor 2, thereby facilitating the camera module 10 to reduce the shoulder height and achieve thinning.

[0170] In other examples, the fifth optical element G5 can also be a right-angle prism, that is, the light-transmitting surface 104 and the third reflecting surface 106 of the fifth optical element G5 are perpendicular. Since the fifth optical element G5 has a right angle, the fifth optical element G5 can be more stably installed in the camera module 10, which is beneficial to the installation stability of the fifth optical element G5.

[0171] Please continue to refer to FIGS. 2 and 3. In some examples, during the focusing process of the camera module 10, the image sensor 2 can be moved along the direction of the optical axis perpendicular to the image sensor 2, thereby achieving the focusing of the camera module 10. Therefore, the second optical element G2 and the fourth optical element G4 can be used only for continuous zooming, and the focusing is achieved by the image sensor 2, which is beneficial to the stability of imaging of the camera module 10.

[0172] The image height of the optical lens 1 at the long-focus end is smaller than the image height of the optical lens 1 at the short-focus end, so that the object visually far away looks more "small" or more "compact" when the optical lens 1 is at the long-focus end, which helps to highlight the shooting subject, reduce background interference, and enhance the simplicity and impact of the picture.

[0173] The field of view FOV of the optical lens 1 satisfies the relationship FOV≤40°. For example, the field of view of the optical lens 1 can be 15°, or 20°, or 25°, or 30°, or 35°, or 40°, or other values less than 40°. In the embodiment, the field of view satisfies the above relationship, so that the optical lens 1 can have a larger focal length adjustment range, which is conducive to achieving a larger focal length.

[0174] Please continue to refer to FIG. 2 and FIG. 3. In some embodiments, the optical surface of at least one lens of the optical lens 1 can be an aspheric surface, and the optical surface of the aspheric surface has different optical powers from the near-axis to the outer field of view area, so that the imaging picture has more balanced picture quality. And / or, the optical surface of at least one lens of the optical lens 1 can be a free-form surface to correct aberration. Wherein, the aspheric surface is a surface that is rotationally symmetric around the optical axis; the free-form surface can have no symmetry axis, or can be symmetric along a certain direction, or symmetric along two directions.

[0175] In some embodiments, the plurality of lenses of the optical lens 1 can be assembled through an active alignment (AA) process to ensure assembly accuracy.

[0176] In some embodiments, the optical lens 1 can also include an aperture stop. For example, the aperture stop can be mounted on the second optical element G2. At this time, the aperture stop has better aperture adjustment effect, which further improves the imaging quality of the optical lens 1. For example, the aperture stop can be mounted on the object side of the second optical element G2. In other embodiments, the aperture stop can also be mounted at other positions of the optical lens 1, which is not strictly limited in the embodiments of the present application.

[0177] The aperture stop can be a spacer structure or a variable petal structure; or the aperture stop can be realized through a surface spraying process, for example, by spraying a light-shielding material on the lens to form the aperture stop. Wherein, the position of the aperture stop can be fixed or variable. For example, the position of the aperture stop is variable, and the aperture stop can be adjusted in position according to the focusing condition to be located between different lenses.

[0178] In some embodiments, at least one lens of the optical lens 1 can adopt a special-shaped technology to reduce the size of the optical lens 1. For example, at least one lens in the second optical element G2 or at least one lens in the third optical element G3 can have a cutout that reduces the height of the lens. The cutout can be realized by an I-CUT process. By providing a cutout for reducing the height of the lens on at least one lens in the second optical element G2 or at least one lens in the third optical element G3, the size of the optical lens 1 in the height direction can be effectively reduced, so that the optical lens 1 can be better applied to small electronic devices, thereby increasing the application range of the optical lens 1. In addition, since the lens reduces its height by means of a cutout, the lens can be provided with a larger light aperture, thereby improving the light throughput of the optical lens 1 and making the imaging quality of the optical lens 1 better. In addition, the special-shaped technology can also be adopted on the structural supports of the lenses such as the lens barrel and the spacer to reduce the size of the optical lens 1.

[0179] In some embodiments, the peripheral surface or the support surface of at least one lens of the optical lens 1 can be blackened or roughened to eliminate stray light and improve imaging quality. The blackening process can be coating or plating black ink or other light-absorbing materials, or can be a film. Roughening is mainly used to increase roughness. Of course, in other embodiments, the optical lens 1 can also eliminate stray light by other means, which are not strictly limited in the embodiments of the present application.

[0180] In some embodiments, the materials used for different lenses of the optical lens 1 can have different temperature characteristics, such as using glass and plastic respectively, to reduce the influence of environmental temperature.

[0181] In some embodiments, the optical surface of at least one lens of the optical lens 1 can form a diffraction structure (not shown in the figure). In this embodiment, by reasonably setting the diffraction structure, chromatic aberration can be reduced, and the volume of the optical lens 1 can also be reduced.

[0182] In some embodiments, the optical lens 1 can also include a liquid lens (not shown in the figure). For example, the liquid lens can be located between the first optical element G1 and the second optical element G2. In this embodiment, the focusing effect can be enhanced by the liquid lens to realize ultra-macro shooting. The liquid lens is a structure that uses liquid as a lens and changes the focal length by changing the curvature of the liquid.

[0183] The following presents a possible embodiment of the camera module 10 shown in FIG. 2 in combination with data and simulation structures.

[0184] Please refer to Table 1a and Table 1b, wherein Table 1a is the radius of curvature (R / mm), interval (D / mm), refractive index (Nd), Abbe number of each lens, reflective element and filter in the camera module 10 shown in FIG. 2 when focusing on a far view in a possible embodiment. The interval includes the thickness of the structure itself, the interval between structures and the interval between the structure and the virtual plane. Table 1b is the asphericity coefficient of each lens in the optical lens 1 in the camera module 10 shown in FIG. 2 in a possible embodiment.

[0185] Table 1a

[0186] Table 1b

[0187] The asphericity of the optical lens 1 in Table 1a can be defined by, but not limited to, the following asphericity curve equation:

[0188] Wherein z is the relative distance of the point on the asphericity curve with a distance of r from the optical axis to the tangent intersection of the asphericity curve on the optical axis; r is the vertical distance of the point on the asphericity curve to the optical axis; c is the curvature; k is the conical coefficient, which is 0; ai is the i-th order asphericity coefficient, which can be referred to Table 1b.

[0189] Please refer to Table 1c, which is the basic parameters of the camera module 10 shown in FIG. 2 in a possible embodiment. In Table 1c, f1 is the focal length (mm) of the first optical element G1, f2 is the focal length (mm) of the second optical element G2, f3 is the focal length (mm) of the third optical element G3, f4 is the focal length (mm) of the fourth optical element G4, ft is the focal length (mm) of the optical lens 1 at the long-focus end; β is the optical magnification of the optical lens 1 in the macro imaging state.

[0190] Table 1c

[0191] In this embodiment, the camera module 10 includes the optical lens 1, the filter 3 and the image sensor 2 arranged from the object side to the image side. The optical lens 1 includes the first optical element G1, the second optical element G2, the third optical element G3 and the fourth optical element G4 arranged from the object side to the image side.

[0192] The first optical element G1 has positive focal power, and includes, in order from the object side to the image side, a first lens L1, a second lens L2, a third lens L3, and a first light path folding element 12. The object side surface of the first lens L1 forms an entrance surface 101 of the first optical element G1, and the entrance surface 101 is convex at the optical axis. The first light path folding element 12 includes a first reflecting surface 102 for changing the propagation direction of the optical axis, and is a prism. The object side surface of the first light path folding element 12 forms an exit surface 103 of the first optical element G1.

[0193] The second optical element G2 has negative focal power, and includes, in order from the object side to the image side, a fourth lens L4, a fifth lens L5, and a sixth lens L6.

[0194] The third optical element G3 has positive focal power, and includes, in order from the object side to the image side, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10, and an eleventh lens L11. An aperture stop is arranged between the eighth lens L8 and the ninth lens L9.

[0195] The fourth optical element G4 has negative focal power, and includes, in order from the object side to the image side, a twelfth lens L12, a thirteenth lens L13, and a fourteenth lens L14. A virtual plane is arranged between the fourteenth lens L14 and the image surface, and is used for simulation auxiliary calculation of the optical lens 1.

[0196] In the zooming process of the camera module 10, the first optical element G1 and the third optical element G3 remain fixed, and the second optical element G2 and the fourth optical element G4 move along the optical axis direction to realize the conversion of different shooting states. Specifically, please refer to Table 1d, which is the basic parameters of the optical lens 1 in different states in a possible embodiment of the camera module 10 shown in FIG. 3. Wherein, when the optical lens 1 is in different states, the focal length (mm), F#, image height (mm), field of view, interval of S10 (mm), interval of S16 (mm), interval of S27 (mm), and interval of S33 (mm) all present different values.

[0197] Table 1d

[0198] Please refer to FIGS. 5 to 7, FIG. 5 is a simulation effect diagram of the optical lens 1 in a wide-angle end in a possible embodiment of the camera module 10 shown in FIG. 3; FIG. 6 is a simulation effect diagram of the optical lens 1 in an intermediate state in a possible embodiment of the camera module 10 shown in FIG. 3; and FIG. 7 is a simulation effect diagram of the optical lens 1 in a telephoto end in a possible embodiment of the camera module 10 shown in FIG. 3.

[0199] The axial chromatic aberration curves, the field curves of astigmatatism and the distortion curves of the optical lens 1 are shown in FIGS. 5-7. The axial chromatic aberration curves include the curves of spherical aberration corresponding to different wave bands (436 nm, 588 nm, 658 nm are shown in the figure); the physical meaning is that the light of the corresponding wavelength emitted at 0 degree field deviates from the ideal image point after passing through the optical system; the abscissa is the deviation value along the optical axis, and the ordinate is the normalized coordinate at the pupil. The values shown in FIGS. 5-7 are small, and the on-axis aberration (spherical aberration, chromatic aberration, etc.) of the optical lens 1 is well corrected. The field curves of astigmatatism are used to show the deviation of the converging point of the light beam of different fields from the ideal imaging surface; the abscissa is the deviation value along the optical axis, and the ordinate is the corresponding field. When the value of a certain field is too large, the image quality of the field is poor or there is high-order aberration. The two-direction field curves shown in FIGS. 5-7 are small, and the system has good focal depth, wherein tangential represents tangential, and sagittal represents sagittal. The distortion curves are used to represent the relative deviation of the converging point (actual image height) of the light beam of different fields from the ideal image height. The values shown in FIGS. 5-7 are all within 3%, which can ensure that the picture is not obviously deformed.

[0200] Please refer to FIGS. 8-10, FIG. 8 is a structural schematic diagram of the camera module 10 in the electronic device 100 shown in FIG. 1A, wherein the optical lens 1 is in the telephoto end in some other embodiments; FIG. 9 is a structural schematic diagram of multiple states of the optical lens 1 in the camera module 10 shown in FIG. 8; and FIG. 10 is a light path structure diagram of the camera module 10 in some use states shown in FIG. 9. In FIG. 9, from top to bottom, the wide-angle end, the intermediate state and the telephoto end of the optical lens 1 are sequentially shown.

[0201] In some embodiments, the camera module 10 includes the optical lens 1, the optical filter 3 and the image sensor 2 arranged from the object side to the image side. The optical lens 1 includes the first optical element G1, the second optical element G2, the third optical element G3, the fourth optical element G4 and the fifth optical element G5 arranged from the object side to the image side.

[0202] The first optical element G1 has positive refractive power, and includes the first lens L1, the second lens L2, the third lens L3 and the first light path turning element 12 arranged from the object side to the image side. The object side surface of the first lens L1 forms an incident surface 101 of the first optical element G1, and the incident surface 101 is convex at the optical axis. The first light path turning element 12 includes a first reflecting surface 102 for changing the propagation direction of the optical axis, and the first light path turning element 12 is a prism. The object side surface of the first light path turning element 12 forms an exit surface 103 of the first optical element G1.

[0203] The second optical element G2 has negative focal power, and includes, in order from the object side to the image side, a fourth lens L4, a fifth lens L5, and a sixth lens L6.

[0204] The third optical element G3 has positive focal power, and includes, in order from the object side to the image side, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10, and an eleventh lens L11. An aperture stop is arranged between the eighth lens L8 and the ninth lens L9.

[0205] The fourth optical element G4 has negative focal power, and includes, in order from the object side to the image side, a twelfth lens L12, a thirteenth lens L13, and a fourteenth lens L14. The fourteenth lens L14 and the image plane have a virtual plane therebetween, which is used for simulation-assisted calculation of the optical lens 1.

[0206] The fifth optical element includes a light-transmitting surface 104, a second reflecting surface 105, and a third reflecting surface 106. The second reflecting surface 105 and the third reflecting surface 106 are used to change the propagation direction of the optical axis, fold the optical path, and reflect the light to the image sensor 2. The fifth optical element G5 is a bevel prism, and the minimum acute angle value thereof is 27.5°.

[0207] The following presents a possible implementation of the optical lens 1 shown in FIG. 8 in combination with data and simulation structures.

[0208] Please refer to Table 2a and Table 2b together, wherein Table 2a is the radius of curvature (R / mm), the interval (D / mm), the refractive index (Nd), and the Abbe number of each lens, reflecting element, and filter of the camera module 10 shown in FIG. 8 when focusing on a long shot in a possible embodiment. The interval includes the thickness of the structure itself, the interval between structures, and the interval between the structure and the virtual plane. Table 2b is the aspheric coefficients of each lens of the optical lens 1 in the camera module 10 shown in FIG. 8 in a possible embodiment.

[0209] Table 2a

[0210] Table 2b

[0211] The aspheric surface of the optical lens 1 of Table 2a can be defined by, but not limited to, the following aspheric curve equation:

[0212] Wherein, z is the relative distance of a point on the aspheric surface with a distance r from the optical axis to the tangent plane of the intersection point on the aspheric surface; r is the vertical distance of a point on the aspheric curve to the optical axis; c is the curvature; k is the conic coefficient, which is 0; ai is the i-th order aspheric coefficient, which can be referred to Table 1b.

[0213] Table 2c is the basic parameters of the camera module 10 shown in FIG. 8 in a possible embodiment. In Table 2c, f1 is the focal length (mm) of the first optical element G1, f2 is the focal length (mm) of the second optical element G2, f3 is the focal length (mm) of the third optical element G3, f4 is the focal length (mm) of the fourth optical element G4, ft is the focal length (mm) of the optical lens 1 at the telephoto end, and β is the optical magnification of the optical lens 1 at the macro imaging state.

[0214] Table 2c

[0215] In the zooming process of the camera module 10, the first optical element G1 and the third optical element G3 remain fixed, and the second optical element G2 and the fourth optical element G4 move along the optical axis direction to realize the conversion of different shooting states. Specifically, Table 2d is the basic parameters of the optical lens 1 in different states of the camera module 10 shown in FIG. 8 in a possible embodiment. In Table 2d, the focal length (mm), F#, image height (mm), field of view, interval of S10 (mm), interval of S16 (mm), interval of S27 (mm), and interval of S33 (mm) of the optical lens 1 in different states all present different values.

[0216] Table 2d

[0217] Please refer to FIGS. 11-13. FIG. 11 is a simulation effect diagram of the optical lens 1 in the wide-angle end of the camera module 10 shown in FIG. 9 in a possible embodiment; FIG. 12 is a simulation effect diagram of the optical lens 1 in the intermediate state of the camera module 10 shown in FIG. 9 in a possible embodiment; and FIG. 13 is a simulation effect diagram of the optical lens 1 in the telephoto end of the camera module 10 shown in FIG. 9 in a possible embodiment.

[0218] In the figures 11 to 13, the axial chromatic aberration curve, the field curvature curve and the distortion curve of the optical lens 1 are included. The axial chromatic aberration curve includes the spherical aberration curve corresponding to different wave bands (the figures include 436nm, 588nm, 658nm) of the system; the physical meaning is that the light of the corresponding wavelength emitted at 0 degree field of view deviates from the ideal image point after passing through the optical system; the abscissa is the deviation value along the optical axis direction, and the ordinate is the normalized coordinate at the pupil. The values shown in figures 11 to 13 are small, and the on-axis aberration (spherical aberration, chromatic aberration, etc.) of the optical lens 1 is well corrected. The field curvature curve is used to show the deviation of the convergence point of the light beam of different fields of view from the ideal imaging surface, the abscissa is the deviation value along the optical axis direction, and the ordinate is the corresponding field of view. When the value of a certain field of view is too large, the image quality of the field of view is poor or there is high-order aberration. The two-direction field curvature shown in figures 11 to 13 is small, and the system has good focal depth, wherein, tangential represents tangential, and sagittal represents sagittal. The distortion curve is used to represent the relative deviation amount of the convergence point (actual image height) of the light beam of different fields of view from the ideal image height. The values shown in figures 11 to 13 are all within 8%, which can ensure that the picture does not have obvious deformation.

[0219] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and any combination of the features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can also be combined according to actual needs.

[0220] It should be noted that all the above-mentioned figures are exemplary illustrations of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the figures is not limited to the actual product of the present application.

[0221] The above is only part of the embodiments and implementation manners of the present application, and the protection scope of the present application is not limited thereto. 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 within 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 (1), characterized in that, The first optical element (G1), the second optical element (G2), the third optical element (G3) and the fourth optical element (G4) are sequentially arranged along the object side to the image side, the first optical element (G1) changes the propagation direction of the optical axis from the first direction (Z) to the second direction (X), and the second direction (X) intersects the first direction (Z); During zooming, the first optical element (G1) and the third optical element (G3) are fixed lens groups, and the second optical element (G2) and the fourth optical element (G4) can move along the second direction (X); The first optical element (G1) has positive focal power, the focal length f1 of the first optical element (G1) and the focal length ft of the optical lens (1) at the telephoto end satisfy: 0.2≤|f1 / ft|≤0.

9.

2. The optical lens (1) according to claim 1, characterized in that, The first optical element (G1) is arranged to be rotatable about the first direction (Z), and / or the second direction (X), and / or the third direction (Y) which intersects both the first direction (Z) and the second direction (X).

3. The optical lens (1) according to claim 2, characterized in that, The first optical element (G1) comprises a first lens group (11) and a first light path folding element (12). The first lens group (11) has positive focal power, and the first lens group (11) is located on the object side of the first light path folding element (12). The first light path folding element (12) is a mirror or a prism.

4. The optical lens (1) according to claim 3, characterized in that, The first light path folding element (12) is a prism, and the first lens group (11) and the first light path folding element (12) are cemented, or the first optical element (G1) is an integrated structure.

5. The optical lens (1) according to claim 3 or 4, characterized in that, The first light path folding element (12) is a prism, and the refractive index Nd of the first light path folding element (12) satisfies: Nd≤2.

1.

6. The optical lens (1 ) according to any one of claims 1 to 5, characterized in that, The first optical element (G1) comprises an incident surface (101) and a first reflection surface (102) arranged from the object side to the image side. The incident surface (101) is convex near the optical axis, and the first reflection surface (102) is used to change the propagation direction of the optical axis from the first direction (Z) to the second direction (X).

7. The optical lens (1) according to claim 6, characterized in that, The curvature radius L1S1R of the incident surface (101) and the focal length ft of the optical lens (1) at the telephoto end satisfy: 0.4≤L1S1R / ft≤3.

8. The optical lens (1 ) according to any one of claims 1 to 7, characterized in that, The second optical element (G2) has negative focal power, the focal length f2 of the second optical element (G2) and the focal length ft of the optical lens (1) at the telephoto end satisfy: 0.1≦|f2 / ft|≦0.

6. The fourth optical element (G4) has negative focal power, the focal length f4 of the fourth optical element (G4) and the focal length ft of the optical lens (1) at the telephoto end satisfy: 0.1≦|f4 / ft|≦0.

7.

9. The optical lens (1) according to claim 8, characterized in that, The optical lens (1) has a macro imaging state, and in the macro imaging state, Wherein, the optical magnification β of the optical lens (1) satisfies: β≥0.2, and / or the minimum shooting distance of the optical lens (1) is ≥100mm.

10. The optical lens (1) according to claim 9, characterized in that, In the macro imaging state, the fourth optical element (G4) is moved along the second direction (X) toward the image side for focusing, and the movement range of the fourth optical element (G4) is in the range of 0-4 mm.

11. The optical lens (1 ) according to any one of claims 1 to 10, characterized in that, The third optical element (G3) has positive refractive power, and the focal length f3 of the third optical element (G3) and the focal length ft of the optical lens (1) at the tele end satisfy: 0.1≦|f3 / ft|≦0.

7.

12. The optical lens (1 ) according to any one of claims 1 to 11, characterized in that, The optical lens (1) further comprises a fifth optical element (G5) located on the image side of the fourth optical element (G4), and the fifth optical element (G5) is used to fold the optical axis and change the propagation direction of the optical axis from the second direction (X) to the fourth direction (X'), which intersects with both the first direction (Z) and the second direction (X).

13. The optical lens (1) according to claim 12, characterized in that, The fifth optical element (G5) is an oblique-angle prism, and the acute angle near the image side is the smallest, and the angle range is 27.5°±10°. Alternatively, the fifth optical element (G5) is a right-angle prism.

14. The optical lens (1 ) according to any one of claims 1 to 13, characterized in that, The image height of the optical lens (1) at the tele end is smaller than the image height of the optical lens (1) at the wide end.

15. The optical lens (1 ) according to any one of claims 1 to 14, characterized in that, The field of view angle of the optical lens (1) is less than or equal to 40°.

16. A camera module (10) characterized by: An image sensor (2) and the optical lens (1) according to any one of claims 1-15 are provided, and the image sensor (2) is located on the image side of the optical lens (1).

17. The camera module (10) according to claim 16, characterized in that The image sensor (2) is arranged to be movable along the direction of the optical axis perpendicular to the incident light of the image sensor (2).

18. An electronic device (100), characterized by An image processing device (50) and the camera module (10) according to claim 16 or 17 are provided, the image processing device (50) is in communication connection with the camera module (10), and the image processing device (50) is used to acquire image data from the camera module (10) and process the image data.

Images