Optical lens, camera module and electronic device

Abstract

The application provides an optical lens, a camera module and an electronic device. The optical lens comprises, in order from an object side to an image side, a first optical element, a second optical element and a third optical element, the first optical element changes the propagation direction of the optical axis from a first direction to a second direction, and the first optical element has a negative focal power; the first optical element comprises, in order from the object side to the image side, an incident surface, a first reflection surface and an exit surface, the incident surface is a convex surface near the optical axis, the first reflection surface changes the propagation direction of the optical axis from the first direction to the second direction, and the exit surface is a concave surface near the optical axis; in the process of anti-shake, the first optical element rotates; in the process of zooming, the second optical element and the third optical element move along the second direction. The optical lens can realize optical anti-shake and continuous zooming at the same time, the second optical element and the third optical element do not easily occupy too much space in the first direction, and this is conducive to realizing the miniaturized setting of the optical lens.

Description

TECHNICAL FIELD

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

[0002] With the continuous development of portable electronic devices such as mobile phones, users have higher and higher requirements for the shooting performance of the camera module of the portable electronic device. The existing camera module generally adopts multiple fixed-focus lenses to realize "jump zoom" in cooperation with digital zoom. However, jump zoom cannot meet the shooting needs of users. In addition, the lens position in the existing fixed-focus lens using digital zoom is fixed, and the existing fixed-focus lens cannot realize optical image stabilization. Therefore, the existing camera module cannot realize continuous zoom and optical image stabilization at the same time. SUMMARY

[0003] The present application provides an optical lens, a camera module and an electronic device which can realize continuous zoom and optical image stabilization at the same time.

[0004] In a first aspect, the present application provides an optical lens. The optical lens comprises, in order from an object side to an image side, a first optical element, a second optical element and a third optical element, the first optical element is configured to change the propagation direction of the optical axis from a first direction to a second direction, the first direction is different from the second direction, and the first optical element has a negative optical power; the first optical element comprises, in order from the object side to the image side, an incident surface, a first reflection surface and an exit surface, the incident surface is a convex surface near the optical axis, the first reflection surface changes the propagation direction of the optical axis from the first direction to the second direction, and the exit surface is a concave surface near the optical axis; in an image stabilization process, the first optical element rotates around the first direction, or rotates around the second direction, or rotates around the third direction, or rotates around the first direction and the second direction, or rotates around the second direction and the third direction, or rotates around the first direction and the third direction, or rotates around the first direction, the second direction and the third direction; in a zooming process, the first optical element is a fixed optical element, and the second optical element and the third optical element can move along the second direction.

[0005] It can be understood that the incident surface of the first optical element can realize the contraction of light rays, and the exit surface of the first optical element can compensate for aberrations, thereby facilitating the reduction of the module size of the optical lens and the miniaturization of the camera module.

[0006] It can be understood that, in the process of optical image stabilization of the optical lens, the first optical element can rotate around multiple directions, which is beneficial to realize optical image stabilization of the optical lens, thereby improving the imaging quality of the optical lens. In addition, since the second optical element and the third optical element can move along the optical axis of the second direction, the optical lens can realize continuous zooming. Therefore, the optical lens can realize optical image stabilization and continuous zooming at the same time. In addition, the second optical element and the third optical element are not easy to occupy too much space in the first direction, thereby reducing the length of the optical lens in the first direction, improving the space utilization of the optical lens, and further facilitating the miniaturization of the optical lens.

[0007] In a possible implementation, the second direction includes a first sub-direction and a second sub-direction opposite to each other, the first sub-direction is a direction in which the third optical element points to the second optical element; in the process of zooming from the telephoto end to the super-telephoto end, the first optical element is a fixed optical element, and the second optical element and the third optical element move along the first sub-direction; in the process of zooming from the super-telephoto end to the telephoto end, the first optical element is a fixed optical element, and the second optical element and the third optical element move along the second sub-direction.

[0008] It can be understood that, since the second optical element and the third optical element can move along the optical axis of the first sub-direction or the optical axis of the second sub-direction, the optical lens can realize continuous zooming. In addition, the second optical element and the third optical element are not easy to occupy too much space in the first direction, thereby reducing the length of the optical lens in the first direction, improving the space utilization of the optical lens, and further facilitating the thin-type design of the optical lens. When the optical lens is applied to an electronic device, the electronic device can realize continuous zooming, and the size of the optical lens in the thickness direction of the electronic device is smaller, thereby facilitating the thin-type design of the electronic device.

[0009] In a possible implementation, in the process of zooming from the telephoto end to the macro state of the telephoto end, the first optical element and the third optical element are both fixed optical elements, the second optical element moves along the first sub-direction, or the first optical element and the second optical element are both fixed optical elements, the third optical element moves along the second sub-direction, or the first optical element is a fixed optical element, the second optical element moves along the first sub-direction, and the third optical element moves along the second sub-direction.

[0010] It can be understood that, the optical lens can realize continuous zooming, the optical lens can realize zooming from the telephoto end to the macro state of the telephoto end, and can also realize zooming from the macro state of the telephoto end to the telephoto end, and the shooting performance of the telephoto end and the shooting performance of the macro state of the telephoto end of the optical lens are both good.

[0011] In a possible implementation, during zooming of the optical lens from the super-telephoto end to the macro state at the super-telephoto end, the first optical element and the third optical element are fixed optical elements, the second optical element moves along the first sub-direction, or the first optical element and the second optical element are fixed optical elements, the third optical element moves along the second sub-direction, or the first optical element is a fixed optical element, the second optical element moves along the first sub-direction, and the third optical element moves along the second sub-direction.

[0012] It can be understood that the optical lens can realize continuous zooming, can realize zooming from the super-telephoto end to the macro state at the super-telephoto end, and can realize zooming from the macro state at the super-telephoto end to the super-telephoto end, and the shooting performance at the super-telephoto end and the shooting performance in the macro state at the super-telephoto end of the optical lens are both good.

[0013] In a possible implementation, the second optical element has positive optical power, and the third optical element has negative optical power.

[0014] It can be understood that, on the basis of the optical lens being capable of realizing optical image stabilization and continuous zooming at the same time, the optical power configuration mode of the second optical element and the third optical element can be reasonably used, and specific optical lenses with other parameters, such as aspheric surfaces, focal lengths, refractive indices, system total optical lengths of the optical lens, on-axis thicknesses, and curvature radii, can be reasonably used together, so that the optical lens can meet the requirements of high zoom ratio and continuous zooming while obtaining high imaging performance.

[0015] In a possible implementation, the optical lens satisfies 0.1≤|f1 / fs|≤9, where f1 is the focal length of the first optical element, and fs is the focal length of the super-telephoto end of the optical lens.

[0016] It can be understood that, by limiting the absolute value |f1 / fs| of the ratio of the focal length f1 of the first optical element to the focal length fs of the super-telephoto end of the optical lens to be within the range of 0.1 to 9, the optical lens can have good optical image stabilization performance, and at the same time, the optical lens can have a small module length, and can be miniaturized.

[0017] In a possible implementation, the optical lens satisfies 0.05≤|f2 / fs|≤2, where f2 is the focal length of the second optical element.

[0018] It can be understood that, by limiting the absolute value |f2 / fs| of the ratio of the focal length f2 of the second optical element and the focal length fs of the super-telephoto end of the optical lens to be within the range of 0.05 to 2, the sensitivities of the second optical element and the third optical element are more appropriate, and the moving stroke of the second optical element and the moving stroke of the third optical element are both smaller, and the moving space required by the second optical element and the moving space required by the third optical element are both smaller, which is beneficial to realize the miniaturization of the optical lens.

[0019] In a possible implementation, the optical lens satisfies: 0.05≤|f3 / fs|≤2, where f3 is the focal length of the third optical element.

[0020] It can be understood that, by limiting the absolute value |f3 / fs| of the ratio of the focal length f3 of the third optical element and the focal length fs of the super-telephoto end of the optical lens to be within the range of 0.05 to 2, the sensitivities of the second optical element and the third optical element are more appropriate, and the moving stroke of the second optical element and the moving stroke of the third optical element are both smaller, and the moving space required by the second optical element and the moving space required by the third optical element are both smaller, which is beneficial to realize the miniaturization of the optical lens.

[0021] In a possible implementation, the optical lens satisfies: 0.4≤|L1S1R / fs|≤3, where L1S1R is the radius of curvature of the entrance surface of the first optical element.

[0022] It can be understood that, by limiting the absolute value |L1S1R / fs| of the ratio of the radius of curvature L1S1R of the entrance surface of the first optical element and the focal length fs of the super-telephoto end of the optical lens to be within the range of 0.4 to 3, the optical lens can better balance the light collection performance and the optical anti-shake performance.

[0023] In a possible implementation, the optical lens satisfies: 0.4≤|L2S2R / fs|≤6, where L2S2R is the radius of curvature of the exit surface of the first optical element.

[0024] It can be understood that, by limiting the absolute value |L2S2R / fs| of the ratio of the radius of curvature L2S2R of the exit surface of the first optical element and the focal length fs of the super-telephoto end of the optical lens to be within the range of 0.4 to 6, the optical lens can better balance the imaging quality and the optical anti-shake performance.

[0025] In a possible implementation, the first optical element includes a folding element, the folding element includes a first reflecting surface, and the folding element is a prism or a mirror.

[0026] It can be understood that, in the implementation of light reflection by the first reflecting surface, the first reflecting surface can also correct aberrations such as astigmatism, so as to further improve the image quality or reduce the volume.

[0027] In a possible implementation, the turning element satisfies: Nd≤2.1, where Nd is the refractive index of the turning element.

[0028] It can be understood that, by limiting the refractive index of the turning element to be less than or equal to 2.1, the refractive index of the turning element is smaller, and the light transmittance of the turning element is higher. In this way, the light penetration of the turning element is stronger, the optical quality of the first optical element is higher, and the image captured by the optical lens is clearer.

[0029] In a possible implementation, the turning element includes an exit surface, and the exit surface of the turning element is a spherical mirror, a cylindrical mirror, or a free-form surface.

[0030] It can be understood that, the turning element in the form of the exit surface being a spherical mirror, a cylindrical mirror, or a free-form surface can correct aberrations such as astigmatism, thereby improving the imaging quality of the optical lens.

[0031] In a possible implementation, the first optical element includes a first lens group and a second lens group, an image-side surface of the first lens group is fixedly connected to an object-side surface of the turning element, and an object-side surface of the second lens group is fixedly connected to an image-side surface of the turning element.

[0032] It can be understood that, at this time, after the first optical element is assembled, the first lens group and / or the second lens group have a compact assembly structure with the turning element, which is conducive to realizing the miniaturization of the optical lens.

[0033] In a possible implementation, the first lens group includes at least one lens, and the first lens group has positive refractive power.

[0034] It can be understood that, the first lens group can be used to shrink the light beam, and when the light beam reaches the second optical element after passing through the first optical element, the light beam has been shrunk through a long optical path, and the diameter of the light beam is small, so that the second optical element and the third optical element are no longer the maximum limit of the light aperture of the optical lens. Therefore, under a certain device thickness, even if the size of the second optical element is limited by the device thickness, by arranging the first lens group with positive refractive power in the first optical element, the light aperture of the optical lens can be effectively increased while the module size is taken into account, and a large aperture is realized.

[0035] In a possible implementation, the second lens group includes at least one lens, and the second lens group has negative refractive power.

[0036] It can be understood that, the second lens group with negative refractive power can better compensate for aberrations and improve the imaging quality of the optical lens. In addition, the second lens group can reduce the incidence angle of the light beam at the second optical element, reduce the design difficulty of the second optical element, and achieve better imaging effect.

[0037] In a possible implementation, the optical lens further includes a second reflection surface, the second reflection surface is located on an image side of the third optical element, and the fourth optical element is configured to change the optical axis in the second direction to a fourth direction, the fourth direction being different from the first direction and the second direction.

[0038] It can be understood that the light turning element changes the optical axis in the second direction to the fourth direction, which is beneficial to folding the optical path and thus beneficial to miniaturization of the optical lens.

[0039] In a possible implementation, the fourth optical element includes at least one light turning element, the light turning element includes the second reflection surface, and the light turning element is a bevel prism or a right-angle prism.

[0040] It can be understood that the second reflection surface can correct aberrations such as astigmatism when reflecting light, so as to further improve image quality or reduce volume.

[0041] In a possible implementation, the light turning element is a bevel prism, and a minimum acute angle a of the light turning element satisfies 17.5°≤a≤37.5°, where a is an angle of the minimum acute angle a of the light turning element.

[0042] It can be understood that the angle a of the minimum acute angle a of the light turning element is in a suitable range, so that an included angle between the third direction and the second direction is suitable, which is beneficial to reducing a size of the optical lens in the second direction and a size of the optical lens in the third direction, and thus beneficial to miniaturization of the optical lens.

[0043] In a possible implementation, the light turning element includes an exit surface, and the exit surface of the light turning element is a spherical mirror, a cylindrical mirror, or a free-form surface.

[0044] It can be understood that the exit surface of the light turning element in the form of the spherical mirror, the cylindrical mirror, or the free-form surface can correct aberrations such as astigmatism, so as to improve imaging quality of the optical lens.

[0045] In a possible implementation, the electronic device further includes at least one diaphragm, and the diaphragm is located on an image side of the first optical element.

[0046] It can be understood that the diaphragm can be used to limit an amount of light entering the optical lens, and reduce stray light in the optical lens, so as to change brightness of imaging.

[0047] In a possible implementation, the optical lens satisfies FOV≤40°, where FOV is a field of view of the optical lens.

[0048] It can be understood that by limiting the full field of view FOV of the optical lens to be less than or equal to 40°, the distortion and aberration of the image edge are reduced or avoided, and the full field of view FOV of the optical lens is smaller, the field of view of the optical lens is smaller, and the optical magnification is larger, so that the long focal design of the optical lens can be better met.

[0049] In a possible implementation, the image-side optical lens of the first optical element satisfies: IHs < IHt, where IHs is the image height of the super-telephoto end of the optical lens, and IHt is the image height of the telephoto end of the optical lens.

[0050] It can be understood that by limiting the image height IHs of the super-telephoto end of the optical lens to be less than the image height IHt of the telephoto end of the optical lens, the image blur problem caused by shaking or vibration can be reduced, the image height IHs of the super-telephoto end of the optical lens is reduced, the optical performance of the optical lens is optimized (for example, the distortion and chromatic aberration are reduced), and the imaging quality of the optical lens is improved. The image height IHs of the super-telephoto end of the optical lens is smaller, which means that the focusing stroke of the super-telephoto end is shorter, so that fast focusing is achieved. In addition, the image height IHs of the super-telephoto end of the optical lens is smaller, and a simpler optical design can achieve higher imaging quality. In other words, the optical lens can use fewer or smaller optical elements, so that the volume and weight of the optical lens are reduced, and the production cost and assembly complexity of the optical lens are reduced.

[0051] In a possible implementation, the second optical element satisfies: β ≥ 0.3, where β is the magnification of the second optical element when the optical lens is in the macro state at the telephoto end.

[0052] It can be understood that by limiting the magnification β of the second optical element when the optical lens is in the macro state at the telephoto end to be greater than or equal to 0.3, the magnification of the second optical element when the optical lens is in the macro state at the telephoto end is larger, and the optical lens can better capture the macro shooting object, so that the imaging quality of the optical lens in the macro state is improved.

[0053] In a possible implementation, the materials of different lenses of the image-side optical lens of the first optical element have different temperature characteristics. For example, different lenses can have different thermal expansion coefficients, optical refractive index temperature coefficients, and the like, and different lenses can also use glass and plastic respectively. It can be understood that different lenses have different temperature characteristics, and the lenses with different temperature characteristics can have different performances at the same environmental temperature, so that the influence of the environmental temperature on the optical lens is reduced.

[0054] In a possible implementation, the optical lens further includes a diffractive element. For example, the liquid lens can be located between the first optical element and the second optical element. It can be understood that the diffractive element can be used to control the propagation and distribution of light in the optical lens. The diffractive element can change the propagation direction, wavefront shape or light field distribution of the light rays entering the optical lens through the diffraction phenomenon. It can be understood that by reasonably setting the diffractive element, the chromatic aberration of the optical lens can be reduced, and at the same time, the volume of the optical lens can be reduced.

[0055] In a possible implementation, the optical lens further includes a liquid lens. For example, the liquid lens can be located between the first optical element and the second optical element. For example, the liquid lens can be located between the first optical element and the second optical element. The liquid lens is generally composed of a flexible film containing liquid (for example, water, oil, etc.), and the curvature and focal length of the liquid lens are adjusted by changing the shape of the liquid through the electro-wetting effect, mechanical adjustment or pressure control. It can be understood that the liquid lens can continuously and quickly change the curvature and focal length, thereby enhancing the focusing effect and improving the imaging quality of the optical lens in the macro or super-macro distance.

[0056] In a possible implementation, each lens of the optical lens can adopt a special-shaped technology to reduce the size of the optical lens. For example, at least one lens of the first optical element, the second optical element or the third optical element can have a cut for reducing the height of the lens. The cut can be realized by an I-cut process.

[0057] It can be understood that by setting the cut for reducing the height of the lens on at least one lens of the first optical element, the second optical element or the third optical element, the size of the optical lens in the height direction can be effectively reduced, so that the optical lens can be better applied to small-sized electronic devices, and the application range of the optical lens is increased. In addition, since the height of the lens is reduced by the cut, the lens can be provided with a larger light aperture, thereby improving the light throughput of the optical lens, and further improving the imaging quality of the optical lens.

[0058] In a second aspect, the present application provides a camera module. The camera module includes an image sensor and an optical lens as described above, and the image sensor is located on the image side of the optical lens.

[0059] It can be understood that the camera module can meet the requirements of small size, high zoom ratio and high imaging performance on the basis of realizing continuous zooming and optical image stabilization at the same time.

[0060] In one possible implementation, the camera module also includes a filter, which can be located on the image side of the image sensor, or the material or surface of the lens of the optical lens can be filtered. Understandably, the camera module can filter infrared or blue light, resulting in better image quality.

[0061] Thirdly, this application provides an electronic device. The electronic device includes an image processor and the aforementioned camera module. The image processor is communicatively connected to the camera module and is used to acquire image data from the camera module and process the image data.

[0062] It is understandable that electronic devices can simultaneously achieve continuous zoom and optical image stabilization while meeting the demands for a slim design, high zoom ratio, and high imaging performance. Attached Figure Description

[0063] FIG. 1 This is a schematic diagram of the structure of the electronic device provided in one embodiment of the present application;

[0064] FIG. 2A yes FIG. 1 A partial cross-sectional schematic diagram of one embodiment of the electronic device shown at line AA;

[0065] FIG. 2B yes FIG. 1 The user interface of the electronic device shown is illustrated in a structural schematic diagram of one embodiment.

[0066] FIG. 2C yes FIG. 1 The diagram shown is a simplified representation of a portion of the structure of a camera module in one embodiment.

[0067] FIG. 3A yes FIG. 2A The diagram shows a simplified representation of part of the structure of the camera module in one embodiment. FIG. 1 ;

[0068] FIG. 3B yes FIG. 3A The diagram shown is a simplified representation of a portion of the structure of a camera module in one embodiment.

[0069] FIG. 3C yes FIG. 3A The diagram shows a simplified partial structure of the camera module in another embodiment.

[0070] FIG. 4A This is a simulation effect of the telephoto end of the camera module in the first embodiment. FIG. 1 ;

[0071] FIG. 4Ais a simulation effect diagram two of the telephoto end of the camera module of the first implementation manner;

[0072] FIG. 4B is a simulation effect of the super-telephoto end of the camera module of the first implementation manner FIG. 5A ;

[0073] FIG. 1 is a simulation effect diagram two of the super-telephoto end of the camera module of the first implementation manner;

[0074] FIG. 5B is a simulation effect of the macro state of the telephoto end of the camera module of the first implementation manner FIG. 6A ;

[0075] FIG. 1 is a simulation effect diagram two of the macro state of the telephoto end of the camera module of the first implementation manner;

[0076] FIG. 6B is FIG. 7A the partial structure simplified schematic diagram two of the camera module shown in an implementation manner;

[0077] FIG. 2A is FIG. 7B the partial structure simplified schematic diagram of the camera module shown in an implementation manner;

[0078] FIG. 7A is FIG. 7C the partial structure simplified schematic diagram of the camera module shown in another implementation manner;

[0079] FIG. 7A is a simulation effect of the telephoto end of the camera module of the second implementation manner FIG. 8A ;

[0080] FIG. 1 is a simulation effect diagram two of the telephoto end of the camera module of the second implementation manner;

[0081] FIG. 8B is a simulation effect of the super-telephoto end of the camera module of the second implementation manner FIG. 9A ;

[0082] FIG. 1 is a simulation effect diagram two of the super-telephoto end of the camera module of the second implementation manner;

[0083] FIG. 9B is a simulation effect of the macro state of the telephoto end of the camera module of the second implementation manner FIG. 10A ;

[0084] FIG. 1 is a simulation effect diagram two of the macro state of the telephoto end of the camera module of the second implementation manner;

[0085] FIG. 10B is FIG. 11A the camera module shown in a partial structure simplified schematic diagram of one embodiment;

[0086] FIG. 2A is FIG. 11B the camera module shown in a partial structure simplified schematic diagram of one embodiment;

[0087] FIG. 11A is FIG. 11C the camera module shown in a partial structure simplified schematic diagram of another embodiment;

[0088] FIG. 11A is the simulation effect of the telephoto end of the camera module of the third embodiment FIG. 12A ;

[0089] FIG. 1 is the simulation effect of the telephoto end of the camera module of the third embodiment

[0090] FIG. 12B is the simulation effect of the super telephoto end of the camera module of the third embodiment FIG. 13A ;

[0091] FIG. 1 is the simulation effect of the super telephoto end of the camera module of the third embodiment

[0092] FIG. 13B is the simulation effect of the super telephoto end of the camera module of the third embodiment FIG. 14A ;

[0093] FIG. 1 is the simulation effect of the super telephoto end of the camera module of the third embodiment DETAILED DESCRIPTION

[0094] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0095] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "joint" should be understood broadly, for example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through intermediate medium; can be electrical connection, or can be mechanical connection. Among them, "fixed connection" refers to the relative position relationship after being connected with each other. In addition, the integration structure of two components obtained by one-piece forming process means that, in the process of forming one of the two components, the component is connected with the other component together, without the need to connect the two components together by reprocessing (such as bonding, welding, buckling connection, screw connection) method.

[0096] The orientation terms mentioned in the embodiments of the present application, such as "inner", "outer" and the like, are only the directions of 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 intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0097] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship. "Multiple" means at least two.

[0098] To facilitate the understanding of the optical lens provided by the embodiments of the present application, the related terms involved in the present application are explained:

[0099] Optical zoom refers to changing the focal length by physically moving the lens to achieve zooming in or out of the captured image. Optical zoom does not easily lose image quality because it changes the physical structure of the lens.

[0100] Focusing refers to adjusting the lens position to ensure that the subject being photographed is imaged clearly, without changing the focal length of the system.

[0101] Optical axis is an axis passing through the centers of all lenses.

[0102] Near optical axis, which can be understood as the area of the lens surface close to the optical axis.

[0103] 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 surface.

[0104] 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 surface.

[0105] Convex lens, a common lens, is thicker in the middle and thinner at the edges. Convex lens is divided into double convex, flat convex, and concave convex (concave convex lens is convex greater than concave).

[0106] Concave lens, a common lens, is thinner in the middle and thicker at the edges. Concave lens is divided into double concave, flat concave, and concave convex.

[0107] The radius of curvature of a convex lens refers to the radius of the curvature circle from the center of the lens to the surface of the lens closest to the center. For a convex lens, its radius of curvature is usually positive.

[0108] The radius of curvature of a concave lens refers to the radius of the curvature circle from the center of the lens to the surface of the lens closest to the center. For a concave lens, its radius of curvature is usually negative.

[0109] Focal length, also known as focal length, is a measure of the convergence or divergence of light in an optical system. It refers to the vertical distance from the optical center of the lens or optical element to the focal plane when an infinite distant object passes through the lens or optical element to form a clear image. From a practical point of view, it can be understood as the distance from the lens center to the imaging plane. For a fixed focus lens, the position of the optical center is fixed.

[0110] The focal length of an optical lens is defined as the distance from the center of the optical lens to the focal point.

[0111] Focal power is defined as the difference between the convergence of the image side light beam and the convergence of the object side light beam, which is the inverse of the focal length of the lens. It represents the ability of the optical system to deflect light.

[0112] Positive focal power, also known as positive refractive power, indicates that the lens has a positive focal length and can converge light.

[0113] Negative focal power, also known as negative refractive power, indicates that the lens has a negative focal length and can diverge light.

[0114] 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 range of the optical instrument. The larger the field of view, the larger the field of view, and the smaller the optical magnification.

[0115] Focal length at telescopic end (ft) of the camera module, defined as the distance from the center to the focal point of the telescopic end of the camera module.

[0116] Super telescopic end, the longest focal length section of the lens, the smallest field of view of the lens, used for shooting long shots, especially close-up shots.

[0117] Focal length at super telescopic end (fs) of the camera module, defined as the distance from the center to the focal point of the super telescopic end of the camera module.

[0118] Imaging height (IH), which represents half the diagonal length of the effective pixel area on the photosensitive chip, that is, the radius of the imaging circle.

[0119] F-number, also known as F-number, is a relative value (reciprocal of relative aperture) derived from the focal length of the lens / diameter of the lens entrance pupil. The smaller the F-number, the more light is admitted in the same unit of time. The larger the F-number, the smaller the depth of field, and the background content of the shot will be blurred, similar to the effect of a long focal length lens. Material refractive index (Nd), defined as the absolute value of the ratio of the propagation speed of light to the speed of light in vacuum when electromagnetic waves (including visible light) propagate in the material. It is an index that describes the speed and degree of bending of light in a material.

[0120] Abbe number (Vd), i.e. dispersion coefficient, is the ratio of the difference in refractive index of an optical material at different wavelengths, representing the degree of dispersion of the material.

[0121] Aperture, which refers to an entity that restricts the light beam in an optical system. It can be the edge of a lens, a frame or a specially designed aperture screen. Its function can be divided into two aspects, limiting the light beam or limiting the size of the field of view (imaging range). The aperture that limits the light beam most in the optical system is called the aperture stop; the aperture that limits the field of view (size) most is called the field stop.

[0122] Distortion, also called aberration, is the degree of distortion of an image formed by an optical system relative to the object itself. Distortion is caused by the effect of the stop spherical aberration, the intersection height of the chief ray of different fields after passing through the optical system is not equal to the ideal image height, 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, which causes the shape of the image to be distorted, but does not affect the sharpness of the image.

[0123] FIG. 14B Figure 1 is a structural schematic diagram of an electronic device 1000 in an embodiment provided by the present application.

[0124] As shown in FIG. 1 , in some embodiments, the electronic device 1000 can be a mobile phone, a tablet personal computer, a laptop computer, 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 other devices with photographing and video recording functions. FIG. 1 The electronic device 1000 in the embodiment shown is exemplified by a mobile phone.

[0125] FIG. 1 Figure 2 is a partial cross-sectional schematic diagram of the electronic device 1000 in an embodiment at line A-A. FIG. 2A

[0126] As shown in FIG. 1 and FIG. 2A , the electronic device 1000 includes a screen 100, a housing 200, a camera module 300, an image processor 400, and an analog-to-digital converter 500. In other embodiments, the electronic device 1000 can include more or fewer structures, for example, when the electronic device 1000 includes more structures, the electronic device 1000 can further include a circuit board (not shown in the drawings). When the electronic device 1000 includes fewer structures, the electronic device 1000 can not include the screen 100. It can be understood that FIG. 2A and FIG. 2A only some components included in the electronic device 1000 are schematically shown, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 2A and FIG. 2A .

[0127] ​For example, the screen 100 can be fixed to the housing 200. The screen 100 can be used to display images to meet the user's needs. The display layer can be a liquid crystal display or an organic light-emitting diode display, etc. The screen 100 and the housing 200 can together enclose the interior of the electronic device 1000. The interior of the electronic device 1000 can be used to house components of the electronic device 1000, such as batteries, receivers, or microphones. The screen 100 can be a flat screen or a curved screen.

[0128] For example, the camera module 300 can be installed inside the housing 200, and the light-incident side of the camera module 300 can be set to face away from the screen 100 to serve as a rear camera of the electronic device 1000.

[0129] For example, the housing 200 may have a light-transmitting portion 201, and the shape of the light-transmitting portion 201 is not limited to the attached FIG. 2A The shape shown can be circular, elliptical, or irregular. The light-transmitting part 201 connects the interior of the electronic device 1000 to its exterior. Light from outside the electronic device 1000 can enter its interior through the light-transmitting part 201, and it is dustproof and waterproof. The camera module 300 can collect light from outside the electronic device 1000 through the light-transmitting part 201 to capture images or videos.

[0130] In other embodiments, the light-incident side of the camera module 300 can face the side where the screen 100 is located, serving as a front-facing transparent camera of the electronic device 1000. Both the front-facing and rear-facing cameras can be used for selfies or for the photographer to take pictures of other objects.

[0131] Understandable FIG. 2A The installation position of the camera module 300 in the illustrated embodiment of the electronic device 1000 is merely illustrative, and this application does not strictly limit the installation position of the camera module 300. In some other embodiments, the camera module 300 may also be installed in other locations on the electronic device 1000, such as the upper middle or upper right corner of the back of the electronic device 1000. In some other embodiments, the electronic device 1000 may include a terminal body and an auxiliary component that can rotate, move, or be detached relative to the terminal body, and the camera module 300 may also be disposed on the auxiliary component.

[0132] Exemplarily, the image processor 400 can be in communication connection with the camera module 300, and the image processor 400 can be configured to acquire image data from the camera module 300 and process the image data. The communication connection between the camera module 300 and the image processor 400 can include data transmission through electrical connection such as wiring, or can be achieved through coupling or other means. It can be understood that the camera module 300 and the image processor 400 can also be in communication connection through other means capable of achieving data transmission.

[0133] The image processor 400 can include multiple processing modules, which can be configured to convert the original image signal captured by the camera module 300 to form image information, transmit the processed information to the display module of the display screen, and display the image or video through the display screen. The image processor 400 can be an image processing chip or a digital signal processing chip, which can be configured to adjust the color of the image, perform noise reduction processing on the image, and further improve the image quality.

[0134] In the embodiments of the present application, the working principle of the camera module 300 in the electronic device 1000 can be that the light reflected by the photographed object enters the inside of the camera module 300, generates an optical image, and projects the optical image onto the surface of the image sensor of the camera module 300. The image sensor converts the optical image into an electrical signal, i.e., an analog image signal, and transmits the converted analog image signal to the analog-to-digital converter 500, so as to be converted into a digital image signal by the analog-to-digital converter 500 and transmitted to the image processor 400. The image processor 400 can be configured to convert the original image signal captured by the camera module 300 to form image information, transmit the processed information to the screen 100, and display the image or video through the screen 100. In other embodiments, the electronic device 1000 can further include a memory (not shown in the drawings), and the image processor 400 can process the image digital signal and transmit the image to the memory, so as to be able to find the image from the memory and display the image on the screen 100 at any time when the image needs to be viewed subsequently.

[0135] FIG. 2C The structure of the electronic device 1000 is only schematically represented. The camera module 300, the image processor 400, and the analog-to-digital converter 500 shown in the structure of the electronic device 1000 are only schematically represented, and the size, number, and position thereof can be adjusted as needed, which is not limited in the present application. FIG. 1 The size, number, and position of the camera module 300, the image processor 400, and the analog-to-digital converter 500 shown in the structure of the electronic device 1000 are only schematically represented, and the size, number, and position thereof can be adjusted as needed, which is not limited in the present application.

[0136] It can be understood that the number of camera modules 300 can be one or at least two. When the number of camera modules 300 is one, the camera module 300 can be used as a front camera or a rear camera. When the number of camera modules 300 is at least two, the at least two camera modules 300 can be long-focus camera modules 300, ultra-long-focus camera modules 300, or other camera modules capable of meeting different shooting requirements, and the present application does not limit this.

[0137] The structure of the related components of the electronic device 1000 is specifically introduced above in combination with the related drawings. The structure of the camera module 300 will be specifically introduced below in combination with the drawings.

[0138] FIG. 2C is FIG. 2C The operation interface of the electronic device 1000 shown in the structure schematic diagram of an embodiment.

[0139] As FIG. 2C shown, the user can operate on the screen 100 to issue a running instruction to the electronic device 1000, so as to change the zoom ratio of the camera module 300. The range of the zoom ratio of the camera module 300 can satisfy 1 times (also can be called 1x) to 10 times (also can be called 10x). It can be understood that the camera module 300 can be continuously zoomed from 1 times to 10 times, or continuously zoomed from 10 times to 1 times. In other words, during the continuous zooming of the camera module 300, the zoom ratio of the camera module 300 can be any value between 1 times and 10 times, for example, the zoom ratio of the camera module 300 can be 1 times, 1.8 times, 2.3 times, 3 times, 3.5 times, 4 times, 5 times, 5.3 times, 6 times, 7.65 times, 8 times, 9.5 times or 10 times, etc.

[0140] Exemplarily, when the camera module 300 is at the long-focus end, the zoom ratio of the camera module 300 can be 3 times; when the camera module 300 is at the ultra-long-focus end, the zoom ratio of the camera module 300 can be 10 times.

[0141] Exemplarily, during the zooming of the camera module 300 from the long focal end to the super long focal end, the zoom ratio of the camera module 300 is continuously changed. For example, when the camera module 300 is in an intermediate state between the long focal end and the super long focal end, the zoom ratio of the camera module 300 can be any value between 3 times and 10 times, for example, the zoom ratio of the camera module 300 can be 3.2 times, 4 times, 4.3 times, 5.1 times, 5.5 times, 6 times, 6.3 times, 6.9 times, 7 times, 7.8 times, 8 times, 9 times or 9.89 times, etc. It can be understood that, during the zooming of the camera module 300 from the super long focal end to the long focal end, the zoom ratio of the camera module 300 is also continuously changed, and the zoom ratio of the camera module 300 can be any value between 10 times and 3 times.

[0142] It can be understood that, during the zooming of the camera module 300 from the long focal end to the super long focal end or from the super long focal end to the long focal end, the camera module 300 can realize continuous zooming in the zooming range. Compared with the scheme of jumping zooming, the imaging clarity of the camera module 300 is better, and the imaging quality of the camera module 300 is higher.

[0143] In other embodiments, when the camera module 300 is in the long focal end, the zoom ratio of the camera module 300 can also be other values, for example, the zoom ratio of the camera module 300 in the long focal end is 6 times. When the camera module 300 is in the super long focal end, the zoom ratio of the camera module 300 can also be other values, for example, the zoom ratio of the camera module 300 in the super long focal end is 10 times. Meanwhile, when the camera module 300 is in an intermediate state between the long focal end and the super long focal end, the zoom ratio of the camera module 300 can be any value between 6 times and 10 times. The specific embodiments of the present application are not limited.

[0144] As shown in FIG. 1, FIG. 2C The camera module 300 can include an optical lens 10, an image sensor 20 and a filter 30. The light reflected by the object passes through the optical lens 10 by refraction, passes through the filter 30 and is incident on the image sensor 20 to form an image. It can be understood that, FIG. 2C The relevant drawings below only schematically show some components included in the camera module 300, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 2C The relevant drawings below only schematically show some components included in the camera module 300, and the actual shape, actual size, actual position and actual structure of these components are not limited by the drawings. It can be understood that the camera module 300 can also include fewer or more structures. For example, the camera module 300 can include fewer structures, and exemplarily, the camera module 300 can not include the filter 30. The camera module 300 can include more structures, for example, the camera module 300 can also include a lens holder (not shown in the drawings).

[0145] The image sensor 20 can be located on the image side of the optical lens 10. The image sensor 20 is a semiconductor chip, also known as a photosensitive chip. The surface of the image sensor 20 contains hundreds of thousands to millions of photodiodes, which generate electrical charges when illuminated. The image sensor 20 utilizes the photoelectric conversion function of optoelectronic devices to convert the light image on its photosensitive surface into an electrical signal proportional to the light image. The photosensitive surface of the image sensor 20 can be positioned facing the optical lens 10. The image sensor 20 can be a charge-coupled device (CCD), complementary metal-oxide-semiconductor (CMOS), phototransistor, or thin-film transistor, etc.

[0146] Exemplarily, the filter 30 can be located between the optical lens 10 and the image sensor 20. Light passing through the optical lens 10 is incident on the filter 30 and filtered by the filter 30 before being imaged on the image sensor 20. Exemplarily, the filter 30 can be an infrared filter 30. The filter 30 can eliminate unwanted wavelengths of light projected onto the image sensor 20, preventing the image sensor 20 from producing false colors or ripples, thereby improving its effective resolution and color reproduction. This application does not strictly limit the specific embodiments of the structure or component used to implement the filter.

[0147] In some embodiments, the camera module 300 may omit the filter 30 and instead achieve filtering by surface treatment or material treatment of at least one optical element of the optical lens 10. This application does not strictly limit the specific embodiments of the structural components or structures used to achieve filtering.

[0148] The following are FIG. 2C The implementation scheme of the optical lens 10 in the camera module 300 shown is illustrated by example.

[0149] like FIG. 2C As shown, the optical lens 10 includes a first optical element G1, a second optical element G2, and a third optical element G3 arranged sequentially from the object side to the image side. The first optical element G1 is used to change the propagation direction of the optical axis from a first direction to a second direction. The second direction is different from the first direction.

[0150] For example, the first direction can be the Z-axis direction. The second direction can be the X-axis direction. For instance, the Z-axis direction can be the thickness direction of the electronic device 1000. The X-axis direction can be the width direction of the electronic device 1000. In other embodiments, the first and second directions are not specifically limited.

[0151] Understandable, FIG. 2C The accompanying drawings below only schematically illustrate some of the components included in the optical lens 10; the actual shape, size, position, and construction of these components are not subject to change. FIG. 2Cand the following drawings. It can be understood that the optical lens 10 can also include fewer or more structures. For example, the optical lens 10 can include more structures, for example, the optical lens 10 can also include a lens holder (not shown in the drawings).

[0152] Exemplarily, in the anti-shake process of the optical lens 10, the first optical element G1 can rotate around the first direction, or rotate around the second direction, or rotate around the third direction, or rotate around the first direction and the second direction, or rotate around the second direction and the third direction, or rotate around the first direction and the third direction, or rotate around the first direction, the second direction and the third direction, to realize optical anti-shake of the optical lens 10 and improve the imaging quality of the optical lens 10. The third direction can be different from the first direction and the second direction.

[0153] Exemplarily, the third direction can be located in the plane (i.e., the X-Z plane) composed of the first direction and the second direction.

[0154] Exemplarily, the third direction can also be perpendicular to the plane composed of the first direction and the second direction. The third direction can be the Y-axis direction. For example, the Y-axis direction can be the length direction of the electronic device 1000.

[0155] FIG. 2C is FIG. 2C The camera module 300 shown in FIG. 1 is a partial structure simplified schematic diagram of an embodiment.

[0156] As shown in FIG. 2, exemplarily, the first optical element G1 can have a first rotation axis O1 and a first rotation center P1. FIG. 2C Exemplarily, the direction of the first rotation axis O1 can be parallel to the first direction. The first rotation axis O1 can pass through the folding element 2 or be located outside the folding element 2. It can be understood that,

[0157] only a straight line passing through the folding element 2 is given in FIG. 2, and the specific position of the first rotation axis O1 is not limited by the position in FIG. 2. FIG. 2C FIG. 3A Exemplarily, the first rotation center P1 can be at any position on the first rotation axis O1. The first rotation center P1 can be located inside the folding element 2 and at the intersection of the first rotation axis O1 and the folding element 2, or be located at any other position inside the folding element 2, or be located outside the folding element 2. It can be understood that, only the first rotation center P1 is located inside the folding element 2 and at the intersection of the first rotation axis O1 and the folding element 2 is given in FIG. 2, and the specific position of the first rotation center P1 is not limited by the position in FIG. 2.

[0158] FIG. 2A Exemplarily, the first rotation center P1 can be at any position on the first rotation axis O1. The first rotation center P1 can be located inside the folding element 2 and at the intersection of the first rotation axis O1 and the folding element 2, or be located at any other position inside the folding element 2, or be located outside the folding element 2. It can be understood that, FIG. 1 only the first rotation center P1 is located inside the folding element 2 and at the intersection of the first rotation axis O1 and the folding element 2 is given in FIG. 2, and the specific position of the first rotation center P1 is not limited by the position in FIG. 2.​

[0159] It can be understood that the first optical element G1 can rotate around the first rotation axis O1 with the first rotation center P1 as the rotation center to realize optical image stabilization of the optical lens 10 and the camera module 300, thereby improving the imaging quality of the optical lens 10 and the camera module 300.

[0160] As shown in FIG. 3A , for example, the first optical element G1 can have a second rotation axis O2 and a second rotation center P2.

[0161] For example, the direction of the second rotation axis O2 can be parallel to the second direction, and the second rotation axis O2 can intersect the first rotation axis O1. The second rotation axis O2 can pass through the folding element 2, or can be located outside the folding element 2. It can be understood that FIG. 3A only the second rotation axis O2 is schematically given as a straight line passing through the folding element 2 in FIG. 3B , and the specific position of the second rotation axis O2 is not limited by the position in .

[0162] FIG. 3A For example, the second rotation center P2 can be at any position on the second rotation axis O2, and the second rotation center P2 can coincide with the first rotation center P1. The second rotation center P2 can be located inside the folding element 2 and at the intersection of the second rotation axis O2 and the folding element 2, or can be located at any other position inside the folding element 2, or can be located outside the folding element 2. It can be understood that FIG. 3A only the second rotation center P2 is schematically given as being located inside the folding element 2 and at the intersection of the second rotation axis O2 and the folding element 2 in , and the specific position of the second rotation center P2 is not limited by the position in

[0163] .

[0164] As shown in FIG. 3B , for example, the first optical element G1 can also rotate around a third direction. The third direction can be any one direction in the plane (i.e., the X-Z plane) formed by the first direction and the second direction, or can be a direction perpendicular to the plane formed by the first direction and the second direction. The specific embodiments of the present application are not limited.

[0165] For example, the first optical element G1 can have a third rotation axis O3 and a third rotation center P3.

[0166] Exemplarily, the third rotation axis O3 can be parallel to the third direction, the third rotation axis O3 can intersect with the first rotation axis O1 and the second rotation axis O2 but not perpendicular to the first rotation axis O1 and the second rotation axis O2, the third rotation axis O3 can intersect with the first rotation axis O1 and the second rotation axis O2 and be perpendicular to the first rotation axis O1 and the second rotation axis O2, or the third rotation axis O3 can be parallel to the first rotation axis O1 or the second rotation axis O2. The third rotation axis O3 can pass through the folding element 2 or be located outside the folding element 2. It can be understood that, FIG. 3A Exemplarily, the third rotation axis O3 is a straight line passing through the folding element 2 and intersecting with the first rotation axis O1 and the second rotation axis O2 and being perpendicular to the first rotation axis O1 and the second rotation axis O2, and the specific position of the third rotation axis O3 is not limited in the FIG. 3B Exemplarily, the third rotation axis O3 is a straight line passing through the folding element 2 and intersecting with the first rotation axis O1 and the second rotation axis O2 and being perpendicular to the first rotation axis O1 and the second rotation axis O2, and the specific position of the third rotation axis O3 is not limited in the

[0167] Exemplarily, the third rotation center P3 can be at any position on the third rotation axis O3, the third rotation center P3 can be located inside the folding element 2 and at the intersection of the third rotation axis O3 and the folding element 2, or be located at any other position inside the folding element 2, or be located outside the folding element 2. It can be understood that, FIG. 3A Exemplarily, the third rotation center P3 is located outside the folding element 2, and the specific position of the third rotation center P3 is not limited in the FIG. 3B Exemplarily, the third rotation center P3 is located outside the folding element 2, and the specific position of the third rotation center P3 is not limited in the

[0168] It can be understood that the first optical element G1 can rotate around the third rotation axis O3 with the third rotation center P3 as the rotation center to achieve optical image stabilization of the optical lens 10 and the camera module 300, thereby improving the imaging quality of the optical lens 10 and the camera module 300.

[0169] As shown in FIG. 2A Exemplarily, when the third direction is a direction perpendicular to the plane formed by the first direction and the second direction, the distance between the intersection of the first direction and the second direction and the third direction is d, and d satisfies: 0 < d ≤ 10 mm (millimeter), for example, d can be equal to 0.5 mm, 1 mm, 1.4 mm, 2.8 mm, 3.3 mm, 4.8 mm, 5 mm, 6.67 mm, 7 mm, 8.88 mm, 9.5 mm or 10 mm. It can be understood that when the first lens group G1 rotates around this third direction, the optical image stabilization effect of the optical lens 10 is better.

[0170] In some embodiments, d satisfies: 0 < d ≤ 7 mm, for example, d can be equal to 0.1 mm, 1 mm, 2.6 mm, 3 mm, 4.1 mm, 5.35 mm, 6.6 mm or 7 mm. It can be understood that when the first lens group G1 rotates around this third direction, the optical image stabilization effect of the optical lens 10 is better.

[0171] In other embodiments, the distance d between the intersection of the first direction and the second direction and the third direction can also satisfy other ranges. The present application is not limited in particular.

[0172] Exemplarily, the camera module 300 can further include an anti-shake driving mechanism (not shown in the drawings), which can be connected with the first optical element G1. The anti-shake driving mechanism can be used to drive the first optical element G1 to move, so as to realize optical anti-shake of the optical lens 10. The anti-shake driving mechanism can be a motor, for example, the anti-shake driving mechanism can be a voice coil motor or a shape memory alloy motor.

[0173] Exemplarily, in the focusing process of the optical lens 10, the first optical element G1 can be a fixed optical element, the second optical element G2

[0174] The second optical element G2 and the third optical element G3 can move along the optical axis of the second direction. In this way, the second optical element G2 can realize focusing, and the third optical element G3 can realize zooming, and the optical lens 10 can realize continuous zooming.

[0175] It can be understood that, since the second optical element G2 moves along the optical axis of the second direction, and the third optical element G3 also moves along the optical axis of the second direction, the second optical element G2 and the third optical element G3 do not easily occupy too much space in the first direction, thereby reducing the length of the optical lens 10 in the first direction, improving the space utilization of the optical lens 10, and further facilitating the miniaturization of the optical lens 10. When the optical lens 10 is applied to the electronic device 1000, the size of the optical lens 10 in the thickness direction of the electronic device 1000 is small, thereby facilitating the thinness of the electronic device 1000.

[0176] Exemplarily, the camera module 300 can include a driving mechanism (not shown in the drawings), which can be connected with the second optical element G2 and the third optical element G3. The driving mechanism can be used to drive the second optical element G2 and the third optical element G3 to move along the optical axis of the second direction. It can be understood that, the number of the driving mechanism can also be two, one driving mechanism drives the second optical element G2 to move along the optical axis of the second direction, and the other driving mechanism drives the third optical element G3 to move along the optical axis of the second direction. In some embodiments, the number of the driving mechanism can be one, and the driving mechanism is an integrated driving device, which can simultaneously drive the second optical element G2 and the third optical element G3 to move along the optical axis of the second direction. The driving mechanism can be a motor, for example, the driving mechanism can be a voice coil motor or a shape memory alloy motor. In other embodiments, the anti-shake driving mechanism and the driving mechanism can be integrated into one driving mechanism.

[0177] FIG. 2A isFIG. 2A The camera module 300 shown in the partial structural simplified schematic diagram of an embodiment FIG. 3A .

[0178] As FIG. 3B shown, the first optical element G1 includes, in order from the object side to the image side, an incident surface 11, a first reflecting surface 12, and an exit surface 13. The incident surface 11 of the first optical element G1 can be convex at the near optical axis. The first reflecting surface 12 of the first optical element G1 can change the propagation direction of the optical axis from the first direction to the second direction. The exit surface 13 of the first optical element G1 can be concave at the near optical axis.

[0179] It can be understood that the incident surface 11 of the first optical element G1 can realize converging light rays, and the exit surface 13 of the first optical element G1 can compensate for aberrations, thereby facilitating the reduction of the module size of the optical lens 10 and realizing the miniaturized arrangement of the camera module 300.

[0180] It can be understood that the first optical element G1 can change the propagation direction of the optical axis from the first direction to the second direction, so that the thickness of the optical lens 10 in the first direction can be thinned. In this way, when the optical lens 10 is applied to the electronic device 1000 such as a mobile phone, the optical lens 10 is not easy to increase the size of the electronic device 1000 in the thickness direction, thereby facilitating the thin-type arrangement of the electronic device 1000.

[0181] As FIG. 3C shown, the first optical element G1 includes, in order from the object side to the image side, a first lens group 1, a folding element 2, and a second lens group 3. The first lens group 1 includes an incident surface 11, and the incident surface 11 of the first lens group 1 can be convex at the near optical axis. The folding element 2 includes a first reflecting surface 12, and the first reflecting surface 12 of the folding element 2 can change the propagation direction of the optical axis from the first direction to the second direction. The second lens group 3 includes an exit surface 13, and the exit surface 13 of the second lens group 3 can be concave at the near optical axis.

[0182] It can be understood that the first reflecting surface 12 can correct aberrations such as astigmatism when reflecting light rays, so as to further improve the image quality or reduce the volume.

[0183] It can be understood that on the basis that the optical lens 10 can simultaneously realize optical image stabilization and continuous zooming, the incident surface 11 of the first lens group 1 can realize converging light rays, and the exit surface 13 of the first lens group 1 can compensate for aberrations, thereby facilitating the reduction of the module size of the optical lens 10 and realizing the miniaturized arrangement of the camera module 300.

[0184] Exemplarily, the image side surface of the first lens group 1 can be fixedly connected with the object side surface of the folding element 2, and the object side surface of the second lens group 3 can be fixedly connected with the image side surface of the folding element 2. The first lens group 1 and the second lens group 3 can be fixedly connected with the folding element 2 by means of gluing or the like. It can be understood that, at this time, the first optical element G1 is assembled, and the assembly structure of the first lens group 1 and / or the second lens group 3 and the folding element 2 is compact, which is beneficial to realize the miniaturization of the optical lens 10.

[0185] In other embodiments, the first lens group 1 and the second lens group 3 can also be fixedly connected with the folding element 2 by other means. The specific embodiments are not limited herein.

[0186] In some embodiments, the first lens group 1, the folding element 2 and the second lens group 3 can also be an integrally formed structure. In other words, the first optical element G1 can be an integrally shaped prism. In other embodiments, there can also be a gap between the image side surface of the first lens group 1 and the object side surface of the folding element 2, and there can also be a gap between the object side surface of the second lens group 3 and the image side surface of the folding element 2. At this time, the first lens group 1 and / or the second lens group 3 can be fixedly connected with the folding element 2 by means of a lens barrel or the like (not shown in the drawings).

[0187] In some embodiments, the folding element 2 of the first optical element G1 can also be a mirror, at this time, the mirror surface forms the first reflection surface 12. The structure (for example, the first lens group 1) forming the incident surface 11 and the structure (for example, the second lens group 3) forming the exit surface 13 can be fixedly connected with the folding element 2 by means of a lens barrel or the like, so as to fix the relative positions of the incident surface 11, the first reflection surface 12 and the exit surface 13.

[0188] Exemplarily, the folding element 2 can include an incident surface 21, a first reflection surface 12 and an exit surface 22, and the exit surface 22 of the folding element 2 can adopt a spherical mirror, a cylindrical mirror or a free-form surface. It can be understood that the folding element 2 in the form of a spherical mirror, a cylindrical mirror or a free-form surface can correct aberrations such as astigmatism, thereby improving the imaging quality of the optical lens 10.

[0189] Exemplarily, the first lens group 1 can include at least one lens, and the first lens group 1 can have positive refractive power. It can be understood that the first lens group 1 can be used to shrink the light beam, and after passing through the first optical element G1, the light rays have been shrunk through a long optical path, and the diameter of the light beam is small, and the second optical element G2 and the third optical element G3 are no longer the maximum limit of the light passing aperture of the optical lens 10. Therefore, under a certain device thickness, even if the size of the second optical element G2 is limited by the device thickness, by setting the first lens group 1 with positive refractive power at the first optical element G1, the light passing aperture of the optical lens 10 can be effectively increased while the module size is taken into account, and a large aperture is realized.

[0190] In other embodiments, the first lens group 1 can also have other refractive power configuration modes.

[0191] Exemplarily, the second lens group 3 can include at least one lens, and the second lens group 3 can have negative refractive power. It can be understood that the second lens group 3 with negative refractive power can better compensate for aberrations and improve the imaging quality of the optical lens 10. In addition, the second lens group 3 can reduce the incidence angle of the light beam at the second optical element G2, reduce the design difficulty of the second optical element G2, and achieve better imaging effect.

[0192] In other embodiments, the second lens group 3 can also have other refractive power configuration modes.

[0193] Exemplarily, the second optical element G2 can include one or more lenses, and the third optical element G3 can include one or more lenses. The specific embodiments of the present application are not limited.

[0194] Exemplarily, the focal length f1 of the first optical element G1 can satisfy: f1<0, that is, the first optical element G1 can have negative refractive power. The focal length f2 of the second optical element G2 can satisfy: f2>0, that is, the second optical element G2 can have positive refractive power. The focal length f3 of the third optical element G3 can satisfy: f3<0, that is, the third optical element G3 can have negative refractive power.

[0195] It can be understood that the distribution among the optical power of the first optical element G1, the optical power of the second optical element G2 and the optical power of the third optical element G3 is reasonable, and the first optical element G1, the second optical element G2 and the third optical element G3 cooperate to form a positive and negative lens cooperation structure, so as to better solve the problem of chromatic aberration and other aberrations, thereby improving the imaging quality of the optical lens 10. In addition, by reasonably using the cooperation of specific optical lenses with other parameters, such as aspherical surface, focal length, refractive index, system total length of the optical lens 10, on-axis thickness and curvature radius, etc., the optical lens 10 can meet the needs of high zoom ratio and continuous zooming while obtaining high imaging performance.

[0196] In other embodiments, the optical power of the first optical element G1, the optical power of the second optical element G2 and the optical power of the third optical element G3 can have other settings. Specifically, the present application is not limited.

[0197] FIG. 3A is FIG. 3A The camera module 300 shown in the partial structure simplified schematic diagram of an embodiment.

[0198] As FIG. 3C and FIG. 3A Exemplarily, the second direction includes a first sub-direction and a second sub-direction opposite to each other, the first sub-direction can be a direction in which the third optical element G3 points to the second optical element G2, and the second sub-direction can be a direction in which the second optical element G2 points to the third optical element G3. In other words, the first sub-direction can be a negative direction of the X axis, and the second sub-direction can also be a positive direction of the X axis. In other embodiments, the first sub-direction can also be a direction in which the second optical element G2 points to the third optical element G3, and the second sub-direction can also be a direction in which the third optical element G3 points to the second optical element G2. In other words, the first sub-direction can be a positive direction of the X axis, and the second sub-direction can be a negative direction of the X axis. It can be understood that the first sub-direction and the second sub-direction can be flexibly set according to actual needs, and the present application is not limited specifically.

[0199] As FIG. 3C and FIGS. 3A-3C As shown in

[0200] As fL1 and fL2As shown, during zooming of the optical lens 10 from the super-telephoto end to the telephoto end, the first optical element G1 can be a fixed optical element, and the second optical element G2 and the third optical element G3 can move along the second sub-direction. At this time, the distance between the second optical element G2 and the third optical element G3 increases.

[0201] It can be understood that, since the second optical element G2 and the third optical element G3 can move along the optical axis of the first sub-direction or the optical axis of the second sub-direction, the optical lens 10 can realize continuous zooming. Therefore, the optical lens 10 can realize optical image stabilization and continuous zooming at the same time.

[0202] In addition, the second optical element G2 and the third optical element G3 do not easily occupy too much space in the first direction, thereby reducing the length of the optical lens 10 in the first direction, improving the space utilization of the optical lens 10, and further facilitating the thin design of the optical lens 10. When the optical lens 10 is applied to the electronic device 1000, the electronic device 1000 can realize continuous zooming, and the size of the optical lens 10 in the thickness direction of the electronic device 1000 is small, thereby facilitating the thin design of the electronic device 1000.

[0203] As shown, ft The optical lens 10 can further include one or more stops 4. The stop 4 can be located at any position in the optical lens 10, that is, the stop 4 can be located between every two lenses.

[0204] For example, the stop 4 can be located between the first optical element G1 and the second optical element G2, between the second optical element G2 and the third optical element G3, or between the third optical element G3 and the image sensor. In other embodiments, the stop 4 can be located in the first optical element G1, that is, the stop 4 can be located between the first lens group 1 and the turning element 2, or between the turning element 2 and the second lens group 3; the stop 4 can also be located in the second optical element G2, that is, the stop 4 can be located between every two lenses of the second optical element G2; the stop 4 can also be located in the third optical element G3, that is, the stop 4 can be located between every two lenses of the third optical element G3. The number and position of the stop 4 are not limited in the present application.

[0205] For example, the stop 4 can be an aperture stop, which is used to limit the amount of light entering the optical lens 10 and reduce stray light in the optical lens 10 to change the brightness of the imaging.

[0206] In other embodiments, the optical lens 10 can also not include the stop 4. It can be understood that, fsSome components of the optical lens 10 are only schematically shown, and the actual shape, actual size and actual structure of these components are not limited by f1 / fs the drawings.

[0207] Exemplarily, the optical filter 30 can also be located inside the optical lens 10. The optical filter 30 can be located between the first optical element G1 and the second optical element G2, or between the second optical element G2 and the third optical element G3. In other embodiments, the optical filter 30 can be located inside the first optical element G1, i.e., the optical filter 30 can be located between the first lens group 1 and the folding element 2, or between the folding element 2 and the second lens group 3; the optical filter 30 can also be located inside the second optical element G2, i.e., the optical filter 30 can be located between every two lenses of the second optical element G2; the optical filter 30 can also be located inside the third optical element G3, i.e., the optical filter 30 can be located between every two lenses of the third optical element G3. The number and location of the optical filter 30 are not limited in the present application.

[0208] In other embodiments, the material or surface of at least one lens of the optical lens 10 can be subjected to optical filtering treatment, so as to achieve the filtering of infrared light or blue light by the optical filter 30, in other words, the camera module 300 can not separately provide the optical filter.

[0209] Exemplarily, the materials used by different lenses of the optical lens 10 can have different temperature characteristics, for example, different lenses can have different thermal expansion coefficients, optical refractive index temperature coefficients, etc., and different lenses can also use glass and plastic respectively.

[0210] It can be understood that different lenses have different temperature characteristics, and at the same ambient temperature, lenses with different temperature characteristics can have different performances, which can reduce the influence of ambient temperature on the optical lens 10.

[0211] Exemplarily, each lens of the optical lens 10 can adopt a special-shaped technology to reduce the size of the optical lens 10. For example, at least one lens in the first optical element G1, the second optical element G2 or the third optical element G3 can have a cutout for reducing the height of the lens. The cutout can be achieved by I-cut process, etc.

[0212] It is understandable that by providing a notch on at least one lens of the first optical element G1, the second optical element G2, or the third optical element G3 to reduce the height of the lens, the size of the optical lens 10 in the height direction can be effectively reduced, making the optical lens 10 more suitable for miniaturized electronic devices 1000 and increasing the application range of the optical lens 10. Furthermore, since the lens height is reduced by the notch, the lens can have a larger light-transmitting aperture, thereby increasing the light transmission of the optical lens 10 and resulting in better image quality.

[0213] In other embodiments, irregular shapes may be used on other structural components of the optical lens 10 to reduce the size of the optical lens 10.

[0214] Exemplarily, the optical lens 10 may also include a diffraction element (not shown in the figures). The diffraction element may be located on the object side of the image sensor 20. For example, the diffraction element may be located between the first optical element G1 and the second optical element G2. The diffraction element can be used to control the propagation and distribution of light in the optical lens 10. The diffraction element can change the propagation direction, wavefront shape, or light field distribution of light entering the optical lens 10 through diffraction phenomena. It is understood that by properly arranging the diffraction element, the chromatic aberration of the optical lens 10 can be reduced, and the size of the optical lens 10 can also be reduced.

[0215] In other embodiments, the optical lens 10 may not include a diffraction element, and a diffraction structure may be formed on the optical surface of at least one lens.

[0216] Exemplarily, the optical lens 10 may also include a liquid lens (not shown in the figures). The liquid lens may be located on the object side of the image sensor 20. For example, the liquid lens may be located between the first optical element G1 and the second optical element G2. The liquid lens typically consists of a flexible film containing a liquid (e.g., water, oil, etc.), and the curvature and focal length of the liquid lens are adjusted by changing the shape of the liquid through electrowetting effects, mechanical adjustment, or pressure control. It is understood that the liquid lens can continuously and rapidly change its curvature and focal length, thereby enhancing the focusing effect and improving the imaging quality of the optical lens 10 in macro or super macro photography.

[0217] In other embodiments, the optical lens 10 may also not include a liquid lens.

[0218] The following will describe in more detail some specific, but not limiting, examples of embodiments of this application with reference to the accompanying drawings.

[0219] First implementation method: such as f2 / fs and f3 / fsAs shown, the optical lens 10 can further include a fourth optical element G4.

[0220] Exemplarily, the fourth optical element G4 can be located on the image side of the third optical element G3, that is, the fourth optical element G4 can be located between the third optical element G3 and the optical filter. The fourth optical element G4 can change the propagation direction of the optical axis from the second direction to a fourth direction. The fourth direction is different from the first direction and the second direction.

[0221] It can be understood that the light turning element 5 changes the optical axis from the second direction to the fourth direction, which is beneficial to fold the optical path, thereby facilitating the miniaturization of the optical lens 10.

[0222] Exemplarily, the fourth optical element includes an incident surface 51, a second reflection surface 52 and an exit surface 53 arranged in sequence from the object side to the image side. The second reflection surface 52 of the fourth optical element G4 can change the propagation direction of the optical axis from the second direction to the fourth direction. When the second reflection surface 52 reflects the light, it can also correct the aberrations such as astigmatism, so as to further improve the image quality or reduce the volume.

[0223] Exemplarily, the fourth optical element G4 can include a light turning element 5. The light turning element 5 can be an oblique-angle prism, in other words, the maximum angle inside the light turning element 5 is an acute angle or an obtuse angle. The light turning element 5 can satisfy: 17.5°≤α≤37.5°, where α is the angle of the minimum acute angle a of the light turning element 5. For example, α can be equal to 17.5°, 18.36°, 20.1°, 23°, 27.5°, 30.25°, 33.3°, 35° or 37.5°, etc. It can be understood that the range of the angle a of the minimum acute angle α of the light turning element 5 is appropriate, so that the included angle between the third direction and the second direction is appropriate, which is beneficial to reduce the size of the optical lens 10 in the second direction and the size in the third direction, thereby facilitating the miniaturization of the optical lens 10.

[0224] In other embodiments, the angle α of the minimum acute angle a of the light turning element 5 can satisfy other ranges.

[0225] In other embodiments, the light turning element 5 can also be a right-angle prism, in other words, the maximum angle inside the light turning element 5 is a right angle.

[0226] Exemplarily, the light turning element 5 can include an incident surface 51, a second reflection surface 52 and an exit surface 53. The exit surface 53 of the light turning element 5 can adopt a spherical mirror, a cylindrical mirror or a free surface. It can be understood that the light turning element 5 in the form of a spherical mirror, a cylindrical mirror or a free surface can correct the aberrations such as astigmatism, thereby improving the imaging quality of the optical lens 10.

[0227] In other embodiments, the exit surface 53 of the light steering element 5 may also be configured in other ways.

[0228] L1S1R yes L2S2R The diagram shows a simplified partial structure of the camera module 300 in another embodiment.

[0229] like |L1S1R / fs| and |L2S2R / fs| As shown, during the process of zooming from the telephoto end to the macro state at the telephoto end, the first optical element G1 and the third optical element G3 can both be fixed optical elements, the second optical element G2 can move along the optical axis of the first sub-direction, and the distance between the second optical element G2 and the third optical element G3 increases.

[0230] like Parameter and Long end As shown, during the process of zooming from the macro state at the telephoto end to the telephoto end, the first optical element G1 and the third optical element G3 can both be fixed optical elements, the second optical element G2 can move along the optical axis of the second sub-direction, and the distance between the second optical element G2 and the third optical element G3 decreases.

[0231] Understandably, the optical lens 10 is capable of continuous zoom, and can zoom from the telephoto end to the telephoto macro state, and can also zoom from the telephoto macro state to the telephoto end. The shooting performance of the optical lens 10 at both the telephoto end and the macro state is good.

[0232] In some embodiments, during the zooming process from the telephoto end to the macro state, the first optical element G1 and the second optical element G2 can both be fixed optical elements, while the third optical element G3 can move along the optical axis of the second sub-direction. In other embodiments, the camera module 300 has sufficient internal space, the distance between the first optical element G1 and the second optical element G2 is large, the distance between the third optical element G3 and the filter 30 is large, and during the zooming process from the telephoto end to the macro state, the first optical element G1 can be a fixed optical element, the second optical element G2 can move along the optical axis of the first sub-direction, and the third optical element G3 can move along the optical axis of the second sub-direction. Specific implementation is not limited in this application.

[0233] In some embodiments, during the zooming of the macro state at the long focal end of the optical lens 10 to the long focal end, the first optical element G1 and the second optical element G2 can be fixed optical elements, and the third optical element G3 can move along the optical axis of the first sub-direction. In other embodiments, the camera module 300 has sufficient space inside, the distance between the first optical element G1 and the second optical element G2 is large, and the distance between the third optical element G3 and the optical filter 30 is large. During the zooming of the macro state at the long focal end of the optical lens 10 to the long focal end, the first optical element G1 can be a fixed optical element, the second optical element G2 can move along the optical axis of the second sub-direction, and the third optical element G3 can move along the optical axis of the first sub-direction. The specific application is not limited.

[0234] The structure of the optical lens 10 is specifically described above in combination with the related drawings. The setting of the related optical parameters of the optical lens 10 will be specifically described below in combination with the drawings.

[0235] Exemplarily, the optical lens 10 can satisfy 0.1≤|f1 / fs|≤9, where f1 is the focal length of the first optical element G1, and fs is the focal length of the super-long focal end of the optical lens 10. For example, |f1 / fs| can be equal to 0.1, 0.2, 1, 2, 3.8, 4.56, 5.31, 6.6, 7, 8, 8.8 or 9, etc.

[0236] It can be understood that by limiting the absolute value |f1 / fs| of the ratio of the focal length f1 of the first optical element G1 to the focal length fs of the super-long focal end of the optical lens 10 within the range of 0.1 to 9, the optical lens 10 can have good optical anti-shake performance, and at the same time, the optical lens 10 can have a smaller module length, and the miniaturization of the optical lens 10 can be realized.

[0237] In other embodiments, the absolute value |f1 / fs| of the ratio of the focal length f1 of the first optical element G1 to the focal length fs of the super-long focal end of the optical lens 10 can also satisfy other ranges. The specific application is not limited.

[0238] Exemplarily, the optical lens 10 can satisfy 0.05≤|f2 / fs|≤2, where f2 is the focal length of the second optical element G2. For example, |f2 / fs| can be equal to 0.05, 0.1, 0.22, 0.3, 0.49, 0.6, 1.3, 1.8 or 2, etc.

[0239] It can be understood that by limiting the absolute value |f2 / fs| of the ratio of the focal length f2 of the second optical element G2 and the focal length fs of the super-telephoto end of the optical lens 10 within the range of 0.05 to 2, the sensitivities of the second optical element G2 and the third optical element G3 are more appropriate, and at the same time, the moving stroke of the second optical element G2 and the moving stroke of the third optical element G3 are both smaller, and the moving space required by the second optical element G2 and the moving space required by the third optical element G3 are both smaller, which is beneficial to realize the miniaturization of the optical lens 10.

[0240] In other embodiments, the absolute value |f2 / fs| of the ratio of the focal length f2 of the second optical element G2 and the focal length fs of the super-telephoto end of the optical lens 10 can also meet other ranges. Specifically, the present application does not make any limitation.

[0241] Exemplarily, the optical lens 10 can meet: 0.05≤|f3 / fs|≤2, where f3 is the focal length of the third optical element G3, for example, |f3 / fs| can be equal to 0.05, 0.1, 0.5, 0.66, 1, 1.23, 1.8 or 2, etc.

[0242] It can be understood that by limiting the absolute value |f3 / fs| of the ratio of the focal length f3 of the third optical element G3 and the focal length fs of the super-telephoto end of the optical lens 10 within the range of 0.05 to 2, the sensitivities of the second optical element G2 and the third optical element G3 are more appropriate, and at the same time, the moving stroke of the second optical element G2 and the moving stroke of the third optical element G3 are both smaller, and the moving space required by the second optical element G2 and the moving space required by the third optical element G3 are both smaller, which is beneficial to realize the miniaturization of the optical lens 10.

[0243] In other embodiments, the absolute value |f3 / fs| of the ratio of the focal length f3 of the third optical element G3 and the focal length fs of the super-telephoto end of the optical lens 10 can also meet other ranges. Specifically, the present application does not make any limitation.

[0244] Exemplarily, the optical lens 10 can meet: 0.4≤|L1S1R / fs|≤3, where L1S1R is the radius of curvature of the incident surface 11 of the first optical element G1, for example, |L1S1R / fs| can be equal to 0.4, 0.5, 0.88, 1.61, 1.99, 2.38, 2.5 or 3, etc.

[0245] It can be understood that by limiting the absolute value |L1S1R / fs| of the ratio of the radius of curvature L1S1R of the incident surface 11 of the first optical element G1 and the focal length fs of the super-telephoto end of the optical lens 10 within the range of 0.4 to 3, the optical lens 10 can better balance the light collection performance and the optical anti-shake performance.

[0246] In other embodiments, the absolute value |L1S1R / fs| of the ratio of the radius of curvature L1S1R of the entrance surface 11 of the first optical element G1 to the focal length fs of the super-telephoto end of the optical lens 10 can also satisfy other ranges. The present application does not limit specifically.

[0247] Exemplarily, the optical lens 10 can satisfy: 0.4≤|L2S2R / fs|≤6, where L2S2R is the radius of curvature of the exit surface 13 of the first optical element G1, for example, |L2S2R / fs| can be equal to 0.4, 0.7, 1.2, 2.6, 3.8, 4.5, 5.33 or 6, etc.

[0248] It can be understood that by limiting the absolute value |L2S2R / fs| of the ratio of the radius of curvature L2S2R of the exit surface 13 of the first optical element G1 to the focal length fs of the super-telephoto end of the optical lens 10 in the range of 0.4 to 6, the optical lens 10 can better balance the performance of divergent light and the optical anti-shake performance.

[0249] In other embodiments, the absolute value |L2S2R / fs| of the ratio of the radius of curvature L2S2R of the exit surface 13 of the first optical element G1 to the focal length fs of the super-telephoto end of the optical lens 10 can also satisfy other ranges. The present application does not limit specifically.

[0250] Exemplarily, the optical lens 10 satisfies: FOV≤40°, where FOV is the field of view of the optical lens 10, and FOV can be equal to 5°, 10.222°, 18°, 23°, 27.98°, 30°, 36.1° or 40°, etc. It can be understood that by limiting the full field of view FOV of the optical lens 10 in the range of less than or equal to 40°, the distortion and distortion of the image edge can be reduced or avoided, and the full field of view FOV of the optical lens 10 is smaller, the field of view of the optical lens 10 is smaller, and the optical magnification is larger, which can better satisfy the long-focus design of the optical lens 10.

[0251] In other embodiments, the field of view FOV of the optical lens 10 can satisfy other ranges. The present application does not limit specifically.

[0252] Exemplarily, the optical lens 10 satisfies: IHs<IHt, where IHs is the image height of the super-telephoto end of the optical lens 10, and IHt is the image height of the telephoto end of the optical lens 10.

[0253] It can be understood that by limiting the image height IHs of the super-telephoto end of the optical lens 10 to be less than the image height IHt of the telephoto end of the optical lens 10, the image blur problem caused by shaking or vibration can be reduced when the image height IHs of the super-telephoto end of the optical lens 10 is reduced, which helps to optimize the optical performance of the optical lens 10 (such as reducing distortion and chromatic aberration), and improve the imaging quality of the optical lens 10. The smaller image height IHs of the super-telephoto end of the optical lens 10 means that the focusing stroke of the super-telephoto end is shorter, thereby achieving fast focusing. In addition, the smaller image height IHs of the super-telephoto end of the optical lens 10 can achieve higher imaging quality with simpler optical design, in other words, the optical lens 10 can use fewer or smaller optical elements, which can reduce the volume and weight of the optical lens 10, and reduce the production cost and assembly complexity of the optical lens 10.

[0254] In other embodiments, the image height IHs of the super-telephoto end of the optical lens 10 can be greater than or equal to the image height IHt of the telephoto end of the optical lens 10, and the specific application is not limited.

[0255] Exemplarily, when the folding element 2 is a prism, the optical lens 10 can satisfy: Nd≤2.1, wherein Nd is the refractive index of the folding element 2, for example, Nd can be equal to 1.1, 1.23, 1.38, 1.5, 1.68, 1.99 or 2.1, etc.

[0256] It can be understood that by limiting the refractive index of the folding element 2 to be less than or equal to 2.1, the refractive index of the folding element 2 is smaller, and the light transmittance of the folding element 2 is higher. In this way, the light penetration of the folding element 2 is stronger, and the optical quality of the first optical element G1 is higher, so that the image captured by the optical lens 10 is clearer.

[0257] In other embodiments, the refractive index Nd of the folding element 2 can also satisfy other ranges.

[0258] Exemplarily, the second optical element G2 satisfies: β≥0.3, wherein β is the magnification of the second optical element G2 when the optical lens 10 is in the macro state at the telephoto end, for example, β can be equal to 0.3, 0.55, 0.6, 0.71, 0.88, 1.1, 2, 2.5 or 3, etc.

[0259] It can be understood that by limiting the magnification β of the second optical element G2 when the optical lens 10 is in the macro state at the telephoto end to be greater than or equal to 0.3, the magnification of the second optical element G2 when the optical lens 10 is in the macro state at the telephoto end is larger, and the optical lens 10 can better capture the macro shooting object, thereby improving the imaging quality of the optical lens 10 in the macro state.

[0260] In other embodiments, the magnification β of the second optical element G2 when the optical lens 10 is in the macro state at the long-focus end can also satisfy other ranges. The present application is not limited thereto.

[0261] Some specific but non-limiting examples of the embodiments of the present application will be described in more detail below in conjunction with the relevant drawings.

[0262] As Macro state at long end For example, the camera module 300 includes, in order from the object side to the image side, the first optical element G1, the second optical element G2, the third optical element G3, the fourth optical element G4, the optical filter 30, and the image sensor 20.

[0263] For example, the first optical element G1 includes the first lens group 1, the turning element 2, and the second lens group 3, and the turning element 2 is a prism. The first lens group 1 can include the first lens L1. The second lens group 3 can include the second lens L2. The second optical element G2 can include the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6. The third optical element G3 can include the seventh lens L7, the eighth lens L8, and the ninth lens L9.

[0264] The design parameters of the camera module 300 of the first embodiment of the present application are as shown in Table 1a.

[0265] Table 1a Design parameters of each lens of the camera module 300 of the first embodiment

[0266]

[0267]

[0268]

[0269] It can be understood that in Table 1a, Object can represent the object side of the camera module 300; S1 and S2 can represent the object side and the image side of the first lens L1, respectively; S3, S4, and S5 can represent the object side of the turning element 2, the first reflecting surface 12, and the image side of the turning element 2, respectively; S6 can represent the second lens L2; S7 can represent the diaphragm 4; S8 and S9 can represent the object side and the image side of the third lens L3, respectively; S10 and S11 can represent the object side and the image side of the fourth lens L4, respectively; S12 and S13 can represent the object side and the image side of the fifth lens L5, respectively; S14 and S15 can represent the object side and the image side of the sixth lens L6, respectively; S16 and S17 can represent the object side and the image side of the seventh lens

[0270] The object side and the image side of the L7; S18 and S19 can represent the object side and the image side of the eighth lens L8 respectively; S20 and S21 can represent the object side and the image side of the ninth lens L9 respectively; S22, S23 and S24 can represent the object side, the image side and the second reflecting surface 52 of the light turning element 5 respectively; S25 and S26 can represent the object side and the image side of the optical filter 30 respectively; S27 can represent the object side of the image sensor 20; S28 can represent the imaging surface of the camera module 300.

[0271] In addition, the thickness of the Object refers to the distance between the object and the object side surface of the camera module 300. The thickness of S1 refers to the distance between the object side surface of the first lens L1 and the image side surface of the first lens L1. The thickness of S2 refers to the distance between the image side surface of the first lens L1 and the object side surface of the folding element 2. The thickness of S3 refers to the distance between the object side surface of the folding element 2 and the first reflecting surface 12 of the folding element 2. The thickness of S4 refers to the distance between the first reflecting surface 12 of the folding element 2 and the image side surface of the folding element 2. The thickness of S5 refers to the distance between the image side surface of the folding element 2 and the object side surface of the second lens L2. The thickness of S6 refers to the distance between the image side surface of the second lens L2 and the object side surface of the diaphragm 4. The thickness of S7 refers to the distance between the image side surface of the diaphragm 4 and the object side surface of the third lens L3. The thickness of S8 refers to the distance between the object side surface of the third lens L3 and the image side surface of the third lens L3. The thickness of S9 refers to the distance between the image side surface of the third lens L3 and the object side surface of the fourth lens L4. The thickness of S10 refers to the distance between the object side surface of the fourth lens L4 and the image side surface of the fourth lens L4. The thickness of S11 refers to the distance between the image side surface of the fourth lens L4 and the object side surface of the fifth lens L5. The thickness of S12 refers to the distance between the object side surface of the fifth lens L5 and the image side surface of the fifth lens L5. The thickness of S13 refers to the distance between the image side surface of the fifth lens L5 and the object side surface of the sixth lens L6. The thickness of S14 refers to the distance between the object side surface of the sixth lens L6 and the image side surface of the sixth lens L6. The thickness of S15 refers to the distance between the image side surface of the sixth lens L6 and the object side surface of the seventh lens L7. The thickness of S16 refers to the distance between the object side surface of the seventh lens L7 and the image side surface of the seventh lens L7. The thickness of S17 refers to the distance between the image side surface of the seventh lens L7 and the object side surface of the eighth lens L8. The thickness of S18 refers to the distance between the object side surface of the eighth lens L8 and the image side surface of the eighth lens L8. The thickness of S19 refers to the distance between the image side surface of the eighth lens L8 and the object side surface of the ninth lens L9. The thickness of S20 refers to the distance between the object side surface of the ninth lens L9 and the image side surface of the ninth lens L9. The thickness of S21 refers to the distance between the image side surface of the ninth lens L9 and the object side surface of the light folding element 5. The thickness of S22 refers to the distance between the object side surface of the light folding element 5 and the image side surface of the light folding element 5. The thickness of S23 refers to the distance between the image side surface of the light folding element 5 and the second reflecting surface 52 of the light folding element 5. The thickness of S24 refers to the distance between the second reflecting surface 52 of the light folding element 5 and the image side surface of the light folding element 5. The thickness of S25 refers to the distance between the image side surface of the light folding element 5 and the object side surface of the optical filter 30. The thickness of S26 refers to the distance between the object side surface of the optical filter 30 and the image side surface of the optical filter 30.The thickness of S27 refers to the distance between the image side of the optical filter 30 and the object side of the image sensor 20. The thickness of S28 refers to the distance between the object side of the image sensor 20 and the imaging surface of the camera module 300.

[0272] In Table 1a, the numerical value of the thickness has a positive or negative direction, which means that the thickness has a direction. For example, the direction of the light ray without reflection by the folding element 2 is the positive direction, and the numerical value of the thickness is positive. The direction of the light ray after reflection by the folding element 2 is the negative direction, and the numerical value of the thickness is negative. It can be understood that when the subsequent table appears again, if the meaning is the same, it will not be described again.

[0273] In other embodiments, the direction of the light ray after reflection by the folding element 2 can be the positive direction, and the numerical value of the thickness can be positive. The direction of the light ray without reflection by the folding element 2 can be the negative direction, and the numerical value of the thickness is negative. The specific application is not limited.

[0274] In addition, the aspheric coefficients of each lens of the camera module 300 of the first embodiment of the present application are as follows in Table 1b.

[0275] Table 1b Aspheric coefficients of each lens of the camera module 300 of the first embodiment

[0276]

[0277]

[0278] In the table, the polynomial coefficients that do not exist (such as 1st order, 2nd order, 3rd order, etc.) are all 0. It can be understood that each parameter in the table is expressed in scientific notation. For example, -5.34038E-05 means -5.34038 x 10 -5 -5. -8 .

[0279] It can be understood that among the 18 aspheric surfaces of the camera module 300 shown in Table 1a and Table 1b, all the even and odd aspheric surface types z can be defined by, but not limited to, the following aspheric formula:

[0280]

[0281] In the formula, z is the sag of the aspheric surface, r is the radial coordinate of the aspheric surface, c is the vertex spherical curvature of the aspheric surface, K is the quadratic surface constant, A irepresents the i-th aspherical surface coefficient, i.e. the i-th term. The surface shapes of the object side and the image side of the first lens L1 to the ninth lens L9 of the camera module 300 of the first embodiment of the present application can be obtained by substituting the design parameters of the first lens L1 to the ninth lens L9 of the camera module 300 into the above aspherical surface formula.

[0282] According to the data in Table 1a and Table 1b, the partial parameters of the camera module 300 of the first embodiment of the present application can be obtained, which are shown in Table 1c as follows.

[0283] Table 1c Partial parameters of the camera module 300 of the first embodiment

[0284] Super-tele end Half image height (mm) f1 f2 f3 Focal length (mm) Aperture 36.48 -13.272 -38.76 10.272 -11.436 31.2 43.2 FOV (°) FIG. 8A FIG. 1 FIG. 8A FIG. 8B FIG. 8A FIG. 9A -0.90 0.24 -0.26 26.11 -22.91 0.604398 0.53032

[0285] wherein fL1 can represent the focal length of the first lens L1; fL2 can represent the focal length of the second lens L2; ft can represent the focal length of the optical lens 10 at the telephoto end. It can be understood that in the present application, the same symbols representing the same meanings will not be described again when appearing again in subsequent tables.

[0286] wherein the focal length fL1 of the first lens L1 satisfies: fL1 = 36.48 mm, and the first lens L1 can have positive refractive power. It can be understood that the first lens group 1 can be used to shrink the light beam, and after passing through the first optical element G1 to reach the second optical element G2, the light rays have undergone a long optical path shrinkage, and the diameter of the light beam is small, and the second optical element G2 and the third optical element G3 are no longer the maximum limit of the clear aperture of the optical lens 10. Therefore, under a certain device thickness, even if the size of the second optical element G2 is limited by the device thickness, by setting the first lens group 1 with positive refractive power at the first optical element G1, the clear aperture of the optical lens 10 can be effectively increased while considering the module size, and a large aperture can be realized.

[0287] wherein the focal length fL2 of the second lens L2 satisfies: fL2 = -13.272 mm, and the second lens L2 can have negative refractive power. It can be understood that the second lens group 3 with negative refractive power can better compensate for aberrations and improve the imaging quality of the optical lens 10. In addition, the second lens group 3 can reduce the incidence angle of the light beam at the second optical element G2, reducing the design difficulty of the second optical element G2 and achieving better imaging effect.

[0288] Specifically, the focal length f1 of the first optical element G1 satisfies: f1 = -38.76mm, the focal length fs of the super-telephoto end of the optical lens 10 satisfies: fs = 43.2mm, and the optical lens 10 satisfies: |f1 / fs| = 0.90. It can be understood that by limiting the absolute value of the ratio of the focal length f1 of the first optical element G1 to the focal length fs of the super-telephoto end of the optical lens 10 to 0.90, the optical lens 10 can have good optical image stabilization performance. Simultaneously, the optical lens 10 can have a smaller module length, enabling miniaturization of the optical lens 10.

[0289] Specifically, the focal length f2 of the second optical element G2 satisfies f2 = 10.272 mm, the focal length fs at the super-telephoto end of the optical lens 10 satisfies fs = 43.2 mm, and the optical lens 10 satisfies |f2 / fs| = 0.24. It can be understood that by limiting the absolute value of the ratio of the focal length f2 of the second optical element G2 to the focal length fs at the super-telephoto end of the optical lens 10 to 0.24, the sensitivity of the second optical element G2 and the third optical element G3 is suitable. Simultaneously, the travel distances of both the second and third optical elements are relatively small.

[0290] The space required for both G2 and the third optical element G3 is relatively small, which is beneficial for achieving a miniaturized optical lens 10.

[0291] Among them, the focal length f3 of the third optical element G3 satisfies: f3 = -11.436mm, the focal length fs at the super-telephoto end of the optical lens 10 satisfies: fs = 43.2mm, and the optical lens 10 satisfies: |f3 / fs| = 0.26. It can be understood that by limiting the absolute value of the ratio of the focal length f3 of the third optical element G3 to the focal length fs at the super-telephoto end of the optical lens 10 to 0.26, the sensitivity of the second optical element G2 and the third optical element G3 is suitable. At the same time, the travel distances of both the second optical element G2 and the third optical element G3 are relatively small.

[0292] The space required for both G2 and the third optical element G3 is relatively small, which is beneficial for achieving a miniaturized optical lens 10.

[0293] The optical lens 10 satisfies: |L1S1R / fs|=0.604398. It can be understood that by limiting the absolute value of the ratio |L1S1R / fs| of the ratio of the radius of curvature L1S1R of the incident surface 11 of the first optical element G1 to the focal length fs of the super-telephoto end of the optical lens 10 to 0.604398, the optical lens 10 can better balance light-gathering performance and optical image stabilization performance.

[0294] The optical lens 10 satisfies: |L2S2R / fs| = 0.53032. It can be understood that by limiting the absolute value of the ratio of the curvature radius L2S2R of the exit surface 13 of the first optical element G1 and the focal length fs of the super-telephoto end of the optical lens 10, i.e., |L2S2R / fs| = 0.53032, the optical lens 10 can better balance the performance of divergent light and the optical anti-shake performance.

[0295] According to the data in Table 1a and Table 1b, part of the parameters of the camera module 300 of the first embodiment of the application can be obtained, which are shown in Table 1d as follows.

[0296] Table 1d Part of the parameters of the camera module 300 of the first embodiment

[0297] FIG. 1 FIG. 9A FIG. 9B FIG. 9B FIG. 10A 6.25 6.25 3.13 FIG. 1 31.2 22.56 43.2 FIG. 10A 2.4 1.8 3.4 FIG. 10B 22.6552 30.969614 8.2749064

[0298] The optical lens 10 satisfies: IHs < IHt. It can be understood that by limiting the image height IHs of the super-telephoto end of the optical lens 10 to be smaller than the image height IHt of the telephoto end of the optical lens 10, the image blur problem caused by shaking or vibration can be reduced, which helps to optimize the optical performance of the optical lens 10 (such as reducing distortion and chromatic aberration), and improve the imaging quality of the optical lens 10. The smaller image height IHs of the super-telephoto end means that the focusing stroke of the super-telephoto end is shorter, thereby realizing fast focusing. In addition, the smaller image height IHs of the super-telephoto end of the optical lens 10 can achieve higher imaging quality with simpler optical design. In other words, the optical lens 10 can use fewer or smaller optical elements, which can reduce the volume and weight of the optical lens 10, and reduce the production cost and assembly complexity of the optical lens 10.

[0299] The field of view FOV of the optical lens 10 is smaller, which can reduce or avoid distortion and distortion of the image edge. The field of view of the optical lens 10 is smaller, and the optical magnification is larger, which can better meet the long-focus design of the optical lens 10.

[0300] FIG. 10B is the simulation effect of the telephoto end of the camera module 300 of the first embodiment FIG. 11A .

[0301] It can be understood that, FIG. 11BThe curve represents the axial chromatic aberration curve of the camera module 300. The axial chromatic aberration curve represents the deviation of the focal point of light of different wavelengths after passing through the lenses of the optical system. The reference wavelengths for the axial chromatic aberration curve are 435nm, 470nm, 510nm, 555nm, 610nm, and 650nm. Its physical meaning is the deviation of light of the corresponding wavelength emitted in a 0-degree field of view from the ideal image point after passing through the optical lens 10. The horizontal axis represents the deviation value along the optical axis, and the vertical axis represents the normalized coordinate at the pupil. It is understood that in this application, when the coordinate system representing the axial chromatic aberration curve of the camera module 300 appears again, the horizontal and vertical axes with the same meaning, as well as the annotations in the figure, will not be repeated.

[0302] like FIG. 11A As shown, when the camera module 300 is at the telephoto end, the normalized coordinates of the camera module 300 are all small, the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) correction of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0303] FIG. 2A This is a simulation effect diagram of the telephoto end of the camera module 300 in the first embodiment.

[0304] Understandable FIG. 11B The curve represents the distortion curve of the camera module 300. The distortion curve represents the relative deviation between the convergence point of the beams (actual image height) and the ideal image height at different fields of view. The horizontal axis represents the optical distortion ratio, and the vertical axis represents the image height IH (mm). It is understood that in this application, when the coordinate system representing the distortion curve of the camera module 300 appears again, the horizontal and vertical axes and annotations with the same meaning will not be repeated.

[0305] like FIG. 11A As shown, when the camera module 300 is at the telephoto end, the optical distortion ratio of the camera module 300 at different image heights is less than 0.5%, which can ensure that there is no obvious distortion in the image, the degree of optical distortion of the image is small, and the imaging quality of the camera module 300 is high.

[0306] FIG. 11A This is a simulation effect of the ultra-telephoto end of the camera module 300 in the first embodiment. FIG. 11B .

[0307] like FIG. 11A As shown, when the camera module 300 is at the super telephoto end, the normalized coordinates of the camera module 300 are all small, the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) correction of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0308] FIG. 11B This is the second simulation image of the ultra-telephoto end of the camera module 300 in the first implementation method.

[0309] like FIG. 11C As shown, when the camera module 300 is at the super telephoto end, the optical distortion ratio of the camera module 300 at different image heights is less than 0.5%, which can ensure that there is no obvious distortion in the image, the degree of optical distortion of the image is small, and the imaging quality of the camera module 300 is high.

[0310] FIG. 11A This is a simulation effect of the macro mode at the telephoto end of the camera module 300 in the first embodiment. FIG. 11A .

[0311] like FIG. 11C As shown, when the camera module 300 is in macro mode at the telephoto end, the normalized coordinates of the camera module 300 are all small, the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) correction of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0312] FIG. 11A This is a simulation image 2 of the macro state of the telephoto end of the camera module 300 in the first embodiment.

[0313] like FIG. 11C As shown, when the camera module 300 is in macro mode at the telephoto end, the optical distortion ratio of the camera module 300 at different image heights is less than 1.0%, which can ensure that there is no obvious distortion in the image, the degree of optical distortion of the image is small, and the imaging quality of the camera module 300 is high.

[0314] Second implementation method: Please refer to fL1 and fL2 , ft yes fs The second schematic diagram shows a partial structural simplification of the camera module 300 in one embodiment. f1 / fs yes f2 / fs The diagram shows a simplified partial structural representation of the camera module 300 in one embodiment.

[0315] For example, the camera module 300 includes a first optical element G1, a second optical element G2, a third optical element G3, a filter 30, and an image sensor 20 arranged sequentially from the object side to the image side.

[0316] Exemplarily, the first optical element G1 comprises the first lens group 1, the turning element 2, and the second lens group 3, and the turning element 2 is a mirror. The first lens group 1 can comprise a first lens L1. The second lens group 3 can comprise a second lens L2. The second optical element G2 can comprise a third lens L3, a fourth lens L4, a fifth lens L5, and a sixth lens L6. The third optical element G3 can comprise a seventh lens L7, an eighth lens L8, and a ninth lens L9.

[0317] As shown in f3 / fs and L1S1R , in the process of zooming from the long-focus end to the super-long-focus end, the first optical element G1 can be a fixed optical element, and the second optical element G2 and the third optical element G3 can move along the first sub-direction. At this time, the distance between the second optical element G2 and the third optical element G3 decreases.

[0318] As shown in L2S2R and |L1S1R / fs| , in the process of zooming from the super-long-focus end to the long-focus end, the first optical element G1 can be a fixed optical element, and the second optical element G2 and the third optical element G3 can move along the second sub-direction. At this time, the distance between the second optical element G2 and the third optical element G3 increases.

[0319] |L2S2R / fs| As shown in Parameter , the camera module 300 in another embodiment is a part of the structure simplified schematic diagram.

[0320] As shown in Long end and Macro state at long end , in the process of zooming from the long-focus end to the macro state of the long-focus end, the first optical element G1 and the third optical element G3 can be fixed optical elements, and the second optical element G2 can move along the optical axis of the first sub-direction. The distance between the second optical element G2 and the third optical element G3 increases.

[0321] As shown in Super-tele end and Half image height (mm) , in the process of zooming from the macro state of the long-focus end to the long-focus end, the first optical element G1 and the third optical element G3 can be fixed optical elements, and the second optical element G2 can move along the optical axis of the second sub-direction. The distance between the second optical element G2 and the third optical element G3 decreases.

[0322] It can be understood that the optical lens 10 can realize continuous zooming, the optical lens 10 can realize zooming from the long-focus end to the macro state of the long-focus end, and can also realize zooming from the macro state of the long-focus end to the long-focus end. The shooting performance of the long-focus end and the shooting performance of the macro state of the long-focus end of the optical lens 10 are both good.

[0323] In some embodiments, the first optical element G1 and the second optical element G2 can be fixed optical elements, and the third optical element G3 can move along the optical axis of the second sub-direction during the zooming of the optical lens 10 from the macro state at the long focal end to the long focal end. In other embodiments, the camera module 300 has sufficient space inside, the distance between the first optical element G1 and the second optical element G2 is large, and the distance between the third optical element G3 and the optical filter 30 is large. In this case, the first optical element G1 can be a fixed optical element, the second optical element G2 can move along the optical axis of the first sub-direction, and the third optical element G3 can move along the optical axis of the second sub-direction during the zooming of the optical lens 10 from the macro state at the long focal end to the long focal end. The specific embodiments are not limited herein.

[0324] In some embodiments, the first optical element G1 and the second optical element G2 can be fixed optical elements, and the third optical element G3 can move along the optical axis of the first sub-direction during the zooming of the optical lens 10 from the macro state at the long focal end to the long focal end. In other embodiments, the camera module 300 has sufficient space inside, the distance between the first optical element G1 and the second optical element G2 is large, and the distance between the third optical element G3 and the optical filter 30 is large. In this case, the first optical element G1 can be a fixed optical element, the second optical element G2 can move along the optical axis of the second sub-direction, and the third optical element G3 can move along the optical axis of the first sub-direction during the zooming of the optical lens 10 from the macro state at the long focal end to the long focal end. The specific embodiments are not limited herein.

[0325] The partial design parameters of the camera module 300 of the second embodiment of the present application are shown in Table 2a.

[0326] Table 2a Partial design parameters of each lens of the camera module 300 of the second embodiment

[0327]

[0328]

[0329] Wherein, the Object can represent the object side of the camera module 300; S1 and S2 can represent the object side and the image side of the first lens L1 respectively; S3, S4 and S5 can represent the object side, the first reflecting surface 12 and the image side of the folding element 2 respectively; S6 can represent the second lens L2; S7 can represent the diaphragm 4; S8 and S9 can represent the object side and the image side of the third lens L3 respectively; S10 and S11 can represent the object side and the image side of the fourth lens L4 respectively; S12 and S13 can represent the object side and the image side of the fifth lens L5 respectively; S14 and S15 can represent the object side and the image side of the sixth lens L6 respectively; S16 and S17 can represent the object side and the image side of the seventh lens L7 respectively; S18 and S19 can represent the object side and the image side of the eighth lens L8 respectively; S20 and S21 can represent the object side and the image side of the ninth lens L9 respectively; S22 and S23 can represent the object side and the image side of the filter 30 respectively; S24 can represent the object side of the image sensor 20.

[0330] In addition, the thickness of the Object refers to the distance between the object and the object side surface of the camera module 300. The thickness of S1 refers to the distance between the object side surface of the first lens L1 and the image side surface of the first lens L1. The thickness of S2 refers to the distance between the image side surface of the first lens L1 and the object side surface of the turning element 2. The thickness of S3 refers to the distance between the object side surface of the turning element 2 and the first reflecting surface 12 of the turning element 2. The thickness of S4 refers to the distance between the first reflecting surface 12 of the turning element 2 and the image side surface of the turning element 2. The thickness of S5 refers to the distance between the image side surface of the turning element 2 and the object side surface of the second lens L2. The thickness of S6 refers to the distance between the image side surface of the second lens L2 and the object side surface of the diaphragm 4. The thickness of S7 refers to the distance between the image side surface of the diaphragm 4 and the object side surface of the third lens L3. The thickness of S8 refers to the distance between the object side surface of the third lens L3 and the image side surface of the third lens L3. The thickness of S9 refers to the distance between the image side surface of the third lens L3 and the object side surface of the fourth lens L4. The thickness of S10 refers to the distance between the object side surface of the fourth lens L4 and the image side surface of the fourth lens L4. The thickness of S11 refers to the distance between the image side surface of the fourth lens L4 and the object side surface of the fifth lens L5. The thickness of S12 refers to the distance between the object side surface of the fifth lens L5 and the image side surface of the fifth lens L5. The thickness of S13 refers to the distance between the image side surface of the fifth lens L5 and the object side surface of the sixth lens L6. The thickness of S14 refers to the distance between the object side surface of the sixth lens L6 and the image side surface of the sixth lens L6. The thickness of S15 refers to the distance between the image side surface of the sixth lens L6 and the object side surface of the seventh lens L7. The thickness of S16 refers to the distance between the object side surface of the seventh lens L7 and the image side surface of the seventh lens L7. The thickness of S17 refers to the distance between the image side surface of the seventh lens L7 and the object side surface of the eighth lens L8. The thickness of S18 refers to the distance between the object side surface of the eighth lens L8 and the image side surface of the eighth lens L8. The thickness of S19 refers to the distance between the image side surface of the eighth lens L8 and the object side surface of the ninth lens L9. The thickness of S20 refers to the distance between the object side surface of the ninth lens L9 and the image side surface of the ninth lens L9. The thickness of S21 refers to the distance between the image side surface of the ninth lens L9 and the object side surface of the filter 30. The thickness of S22 refers to the distance between the object side surface of the filter 30 and the image side surface of the filter 30. The thickness of S23 refers to the distance between the image side surface of the filter 30 and the object side surface of the image sensor 20. The thickness of S24 refers to the distance between the object side surface of the image sensor 20 and the imaging surface of the camera module 300.

[0331] In addition, the aspheric coefficients of each lens of the camera module 300 of the second embodiment of the present application are as follows in Table 2b.

[0332] Table 2b Asphericity coefficients of each lens of the camera module 300 of the second embodiment

[0333]

[0334]

[0335] It can be understood that among the 18 aspheric surfaces of the camera module 300 shown in Table 2a and Table 2b, all even and odd aspheric surface types z can be defined by, but not limited to, the following aspheric surface formula:

[0336]

[0337] wherein z is the sag of the aspheric surface, r is the radial coordinate of the aspheric surface, c is the vertex spherical curvature of the aspheric surface, K is the conic constant, A i represents the i-th order asphericity coefficient, that is, the i-th term. By substituting the design parameters of the first lens L1 to the ninth lens L9 of the camera module 300 into the above aspheric surface formula, the surface types of the object side and the image side of the first lens L1 to the ninth lens L9 of the camera module 300 of the second embodiment of the present application can be obtained.

[0338] According to the data in Table 2a and Table 2b, some parameters of the camera module 300 of the second embodiment of the present application can be obtained, which are shown in Table 2c as follows.

[0339] Table 2c Some parameters of the camera module 300 of the second embodiment

[0340] Focal length (mm) Aperture f1 f2 f3 FOV (°) FIG. 12A 60.0875 -30.36 -122.2 15.203 -15.479 27.025 35.65 FIG. 1 FIG. 12A FIG. 12B FIG. 12A FIG. 13A FIG. 1 FIG. 13A -3.43 0.43 -0.43 29.13 -50.17 0.817110799 1.407293128

[0341] It can be understood that the setting ranges of the related optical parameters in the present embodiment can refer to the setting ranges of the related optical parameters in the first embodiment.

[0342] wherein the focal length fL1 of the first lens L1 satisfies: fL1 = 60.0875 mm (millimeter), and the first lens L1 can have positive refractive power. It can be understood that the first lens group 1 can be used to shrink the light beam, and after passing through the first optical element G1 to reach the second optical element G2, the light has been shrunk through a long optical path, and the diameter of the light beam is small, and the second optical element G2 and the third optical element G3 are no longer the maximum limit of the light passing aperture of the optical lens 10. Therefore, under a certain device thickness, even if the size of the second optical element G2 is limited by the device thickness, by setting the first lens group 1 with positive refractive power at the first optical element G1, the light passing aperture of the optical lens 10 can be effectively increased while considering the module size, and a large aperture can be realized.

[0343] The focal length fL2 of the second lens L2 satisfies: fL2=-30.36 mm, and the second lens L2 can have negative refractive power. It can be understood that the second lens group 3 with negative refractive power can better compensate for aberration and improve the imaging quality of the optical lens 10. In addition, the second lens group 3 can reduce the incidence angle of the light beam on the second optical element G2, reduce the design difficulty of the second optical element G2, and achieve better imaging effect.

[0344] The focal length f1 of the first optical element G1 satisfies: f1=-122.2 mm, the focal length fs of the super-telephoto end of the optical lens 10 satisfies: fs=35.65 mm, and the optical lens 10 satisfies: |f1 / fs|=3.43. It can be understood that by limiting the absolute value of the ratio of the focal length f1 of the first optical element G1 to the focal length fs of the super-telephoto end of the optical lens 10 to be equal to 3.43, the optical lens 10 can have good optical anti-shake performance, and at the same time, the optical lens 10 can have a smaller module length, and the optical lens 10 can be miniaturized.

[0345] The focal length f2 of the second optical element G2 satisfies: f2=15.203 mm, the focal length fs of the super-telephoto end of the optical lens 10 satisfies: fs=35.65 mm, and the optical lens 10 satisfies: |f2 / fs|=0.43. It can be understood that by limiting the absolute value of the ratio of the focal length f2 of the second optical element G2 to the focal length fs of the super-telephoto end of the optical lens 10 to be equal to 0.43, the sensitivity of the second optical element G2 and the third optical element G3 is more appropriate, and at the same time, the moving stroke of the second optical element G2 and the moving stroke of the third optical element G3 are both small, and the moving space required by the second optical element G2 and the moving space required by the third optical element G3 are both small, which is conducive to the miniaturization of the optical lens 10.

[0346] The focal length f3 of the third optical element G3 satisfies: f3=-15.479 mm, the focal length fs of the super-telephoto end of the optical lens 10 satisfies: fs=35.65 mm, and the optical lens 10 satisfies: |f3 / fs|=0.43. It can be understood that by limiting the absolute value of the ratio of the focal length f3 of the third optical element G3 to the focal length fs of the super-telephoto end of the optical lens 10 to be equal to 0.43, the sensitivity of the second optical element G2 and the third optical element G3 is more appropriate, and at the same time, the moving stroke of the second optical element G2 and the moving stroke of the third optical element G3 are both small, and the moving space required by the second optical element G2 and the moving space required by the third optical element G3 are both small, which is conducive to the miniaturization of the optical lens 10.

[0347] The optical lens 10 satisfies: |L1S1R / fs| = 0.817110799. It can be understood that by limiting the absolute value |L1S1R / fs| of the ratio of the curvature radius L1S1R of the entrance surface 11 of the first optical element G1 and the focal length fs of the super-telephoto end of the optical lens 10 to be equal to 0.817110799, the optical lens 10 can better balance the light collection performance and the optical anti-shake performance.

[0348] The optical lens 10 satisfies: |L2S2R / fs| = 1.407293128. It can be understood that by limiting the absolute value |L2S2R / fs| of the ratio of the curvature radius L2S2R of the exit surface 13 of the first optical element G1 and the focal length fs of the super-telephoto end of the optical lens 10 to be equal to 1.407293128, the optical lens 10 can better balance the performance of divergent light and the optical anti-shake performance.

[0349] According to the data in Table 2a and Table 2b, part of the parameters of the camera module 300 of the second embodiment of the present application can be obtained, which are shown in Table 2d as follows.

[0350] Table 2d Part of the parameters of the camera module 300 of the second embodiment

[0351] FIG. 13B FIG. 13B FIG. 14A FIG. 1 FIG. 14A 6.25 6.25 3.13 FIG. 14B 27.025 25.07 35.65 FIG. 14B 2.415 1.725 3.335 ​ 26.043 27.99719 10.01923

[0352] The optical lens 10 satisfies: IHs < IHt. It can be understood that by limiting the image height IHs at the super-telephoto end of the optical lens 10 to be smaller than the image height IHt at the telephoto end of the optical lens 10, the image blur problem caused by shaking or vibration can be reduced, which helps to optimize the optical performance of the optical lens 10 (such as reducing distortion and chromatic aberration), and improve the imaging quality of the optical lens 10. The smaller image height IHs at the super-telephoto end means that the focusing stroke at the super-telephoto end is shorter, thereby realizing fast focusing. In addition, the smaller image height IHs at the super-telephoto end of the optical lens 10 can achieve higher imaging quality with simpler optical design. In other words, the optical lens 10 can use fewer or smaller optical elements, which can reduce the volume and weight of the optical lens 10, and reduce the production cost and assembly complexity of the optical lens 10.

[0353] The field of view FOV of the optical lens 10 is smaller, which can reduce or avoid distortion and distortion of the image edge. The field of view of the optical lens 10 is smaller, and the optical magnification is larger, which can better meet the long focal design of the optical lens 10.

[0354] ​ is the simulation effect of the telephoto end of the camera module 300 of the second embodiment ​ .

[0355] As shown in ​ , when the camera module 300 is at the long-focus end, the normalized coordinates of the camera module 300 are all small, the correction of the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0356] ​ is a simulation effect diagram two of the long-focus end of the camera module 300 of the second implementation.

[0357] As shown in ​ , when the camera module 300 is at the long-focus end, the optical distortion ratio of the camera module 300 at different image heights is less than 5%, which can ensure that the picture has no obvious deformation, the degree of optical distortion of the image is small, and the imaging quality of the camera module 300 is high.

[0358] ​ is a simulation effect diagram two of the long-focus end of the camera module 300 of the second implementation. ​ .

[0359] As shown in ​ , when the camera module 300 is at the long-focus end, the normalized coordinates of the camera module 300 are all small, the correction of the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0360] ​ is a simulation effect diagram two of the long-focus end of the camera module 300 of the second implementation.

[0361] As shown in ​ , when the camera module 300 is at the long-focus end, the optical distortion ratio of the camera module 300 at different image heights is less than 2%, which can ensure that the picture has no obvious deformation, the degree of optical distortion of the image is small, and the imaging quality of the camera module 300 is high.

[0362] ​ is a simulation effect diagram two of the long-focus end of the camera module 300 of the second implementation. ​ .

[0363] As shown in ​ , when the camera module 300 is at the long-focus end, the normalized coordinates of the camera module 300 are all small, the correction of the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0364] ​ is a simulation effect diagram two of the long-focus end of the camera module 300 of the second implementation.

[0365] As shown in ​ , when the camera module 300 is in the macro state at the long-focus end, the optical distortion of the camera module 300 at different image heights is less than 5%, which can ensure that the picture is not obviously deformed, the optical distortion degree of the image is small, and the imaging quality of the camera module 300 is high.

[0366] Third embodiment: please refer to ​ and ​ , ​ is ​ the partial structure simplified schematic diagram three of the camera module 300 shown in an embodiment. ​ is ​ the partial structure simplified schematic diagram of the camera module 300 shown in an embodiment.

[0367] Exemplarily, the camera module 300 comprises, in order from the object side to the image side, a first optical element G1, a second optical element G2, a third optical element G3, a filter 30 and an image sensor 20.

[0368] Exemplarily, the first optical element G1 comprises a first lens group 1, a turning element 2 and a second lens group 3, and the turning element 2 is a mirror. The first lens group 1 can comprise a first lens L1. The second lens group 3 can comprise a second lens L2. The second optical element G2 can comprise a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6. The third optical element G3 can comprise a seventh lens L7, an eighth lens L8 and a ninth lens L9.

[0369] As shown in ​ and ​ , in the process of zooming the optical lens 10 from the long-focus end to the super-long-focus end, the first optical element G1 can be a fixed optical element, and the second optical element G2 and the third optical element G3 can move along the first sub-direction. At this time, the distance between the second optical element G2 and the third optical element G3 decreases.

[0370] As shown in ​ and ​ , in the process of zooming the optical lens 10 from the super-long-focus end to the long-focus end, the first optical element G1 can be a fixed optical element, and the second optical element G2 and the third optical element G3 can move along the second sub-direction. At this time, the distance between the second optical element G2 and the third optical element G3 increases.

[0371] ​ is ​ the partial structure simplified schematic diagram of the camera module 300 in another embodiment.

[0372] As shown in ​ and ​ , in the process of zooming from the super-telephoto end to the macro state of the super-telephoto end, the first optical element G1 and the second optical element G2 can be fixed optical elements, the third optical element G3 can move along the optical axis of the second sub-direction, and the distance between the second optical element G2 and the third optical element G3 increases.

[0373] As shown in ​ and ​ , in the process of zooming from the macro state of the super-telephoto end to the super-telephoto end, the first optical element G1 and the second optical element G2 can be fixed optical elements, the third optical element G3 can move along the optical axis of the first sub-direction, and the distance between the second optical element G2 and the third optical element G3 decreases.

[0374] It can be understood that the optical lens 10 can realize continuous zooming, the optical lens 10 can realize zooming from the super-telephoto end to the macro state of the super-telephoto end, and can also realize zooming from the macro state of the super-telephoto end to the super-telephoto end, and the shooting performance of the super-telephoto end and the shooting performance of the macro state of the super-telephoto end of the optical lens 10 are both good.

[0375] In some embodiments, in the process of zooming from the super-telephoto end to the macro state of the super-telephoto end, the first optical element G1 and the third optical element G3 can be fixed optical elements, and the second optical element G2 can move along the optical axis of the first sub-direction. In other embodiments, the inside of the camera module 300 has sufficient space, the distance between the first optical element G1 and the second optical element G2 is large, and the distance between the third optical element G3 and the optical filter 30 is large. In the process of zooming from the super-telephoto end to the macro state of the super-telephoto end, the first optical element G1 can be a fixed optical element, the second optical element G2 can move along the optical axis of the first sub-direction, and the third optical element G3 can move along the optical axis of the second sub-direction. The specific application is not limited.

[0376] In some embodiments, during zooming of the optical lens 10 from the macro state at the super-telephoto end to the super-telephoto end, the first optical element G1 and the third optical element G3 can be fixed optical elements, and the second optical element G2 can move along the optical axis of the second sub-direction. In other embodiments, the camera module 300 has sufficient internal space, the distance between the first optical element G1 and the second optical element G2 is large, and the distance between the third optical element G3 and the optical filter 30 is large. During zooming of the optical lens 10 from the macro state at the super-telephoto end to the super-telephoto end, the first optical element G1 can be a fixed optical element, the second optical element G2 can move along the optical axis of the second sub-direction, and the third optical element G3 can move along the optical axis of the first sub-direction. The specific embodiments of the present application are not limited.

[0377] The partial design parameters of the camera module 300 of the third embodiment of the present application are shown in Table 3a.

[0378] Table 3a Partial design parameters of each lens of the camera module 300 of the third embodiment

[0379]

[0380]

[0381] Wherein, Object can represent the object side of the camera module 300; S1 and S2 can represent the object side and the image side of the first lens L1, respectively; S3 can represent the first reflecting surface 12 of the folding element 2; S4 and S5 can represent the object side and the image side of the second lens L2, respectively; S6 and S7 can represent the object side and the image side of the third lens L3, respectively; S8 and S9 can represent the object side and the image side of the fourth lens L4, respectively; S10 and S11 can represent the object side and the image side of the fifth lens L5, respectively; S12 and S13 can represent the object side and the image side of the sixth lens L6, respectively; S14 and S15 can represent the object side and the image side of the seventh lens L7, respectively; S16 and S17 can represent the object side and the image side of the eighth lens L8, respectively; S18 and S19 can represent the object side and the image side of the ninth lens L9, respectively; S20 and S21 can represent the object side and the image side of the optical filter 30, respectively; and S22 can represent the object side of the image sensor 20.

[0382] In addition, the thickness of the object refers to the distance between the object and the object side surface of the camera module 300. The thickness of S1 refers to the distance between the object side surface of the first lens L1 and the image side surface of the first lens L1. The thickness of S2 refers to the distance between the image side surface of the first lens L1 and the first reflecting surface 12 of the turning element 2. The thickness of S3 refers to the distance between the first reflecting surface 12 of the turning element 2 and the object side surface of the second lens L2. The thickness of S4 refers to the distance between the object side surface of the second lens L2 and the image side surface of the second lens L2. The thickness of S5 refers to the distance between the image side surface of the second lens L2 and the object side surface of the third lens L3. The thickness of S6 refers to the distance between the object side surface of the third lens L3 and the image side surface of the third lens L3. The thickness of S7 refers to the distance between the image side surface of the third lens L3 and the object side surface of the fourth lens L4. The thickness of S8 refers to the distance between the object side surface of the fourth lens L4 and the image side surface of the fourth lens L4. The thickness of S9 refers to the distance between the image side surface of the fourth lens L4 and the object side surface of the fifth lens L5. The thickness of S10 refers to the distance between the object side surface of the fifth lens L5 and the image side surface of the fifth lens L5. The thickness of S11 refers to the distance between the image side surface of the fifth lens L5 and the object side surface of the sixth lens L6. The thickness of S12 refers to the distance between the object side surface of the sixth lens L6 and the image side surface of the sixth lens L6. The thickness of S13 refers to the distance between the image side surface of the sixth lens L6 and the object side surface of the seventh lens L7. The thickness of S14 refers to the distance between the object side surface of the seventh lens L7 and the image side surface of the seventh lens L7. The thickness of S15 refers to the distance between the image side surface of the seventh lens L7 and the object side surface of the eighth lens L8. The thickness of S16 refers to the distance between the object side surface of the eighth lens L8 and the image side surface of the eighth lens L8. The thickness of S17 refers to the distance between the image side surface of the eighth lens L8 and the object side surface of the ninth lens L9. The thickness of S18 refers to the distance between the object side surface of the ninth lens L9 and the image side surface of the ninth lens L9. The thickness of S19 refers to the distance between the image side surface of the ninth lens L9 and the object side surface of the filter 30. The thickness of S20 refers to the distance between the object side surface of the filter 30 and the image side surface of the filter 30. The thickness of S21 refers to the distance between the image side surface of the filter 30 and the object side surface of the image sensor 20. The thickness of S22 refers to the distance between the object side surface of the image sensor 20 and the imaging surface of the camera module 300.

[0383] In addition, the aspheric coefficients of each lens of the camera module 300 of the third embodiment of the present application are as follows in Table 3b.

[0384] Table 3b Aspheric coefficients of each lens of the camera module 300 of the third embodiment

[0385]

[0386]

[0387] It can be understood that among the 16 aspheric surfaces of the camera module 300 shown in Table 3a and Table 3b, all even and odd aspheric surface types z can be defined by, but not limited to, the following aspheric surface formula:

[0388]

[0389] Wherein, z is the sag of the aspheric surface, r is the radial coordinate of the aspheric surface, c is the vertex spherical curvature of the aspheric surface, K is the quadratic surface constant, A i represents the i-th order aspheric surface coefficient, that is, the i-th term. By substituting the design parameters of the first lens L1 to the ninth lens L9 of the camera module 300 into the above aspheric surface formula, the surface types of the object side and the image side of the first lens L1 to the ninth lens L9 of the camera module 300 of the third embodiment of the present application can be obtained.

[0390] According to the data in Table 3a and Table 3b, some parameters of the camera module 300 of the third embodiment of the present application can be obtained, which are shown in Table 3c as follows.

[0391] Table 3c Some parameters of the camera module 300 of the third embodiment

[0392] ​ ​ f1 f2 f3 ​ ​ 40.87 -25.62 -132.6 12.652 -14.51 16.46 19.07 ​ ​ ​ ​ ​ ​ ​ -6.95 0.66 -0.76 22.33 -22.71 1.170949135 1.190875721

[0393] It can be understood that the setting range of the related optical parameters in the present embodiment can refer to the setting range of the related optical parameters in the first embodiment.

[0394] Wherein, the focal length fL1 of the first lens L1 satisfies: fL1 = 40.87mm (millimeter), and the first lens L1 can have positive refractive power. It can be understood that the first lens group 1 can be used to shrink the light beam, and after passing through the first optical element G1 to reach the second optical element G2, the light beam has been shrunk through a long optical path, and the diameter of the light beam is small, and the second optical element G2 and the third optical element G3 are no longer the maximum limit of the clear aperture of the optical lens 10. Therefore, under a certain device thickness, even if the size of the second optical element G2 is limited by the device thickness, by setting the first lens group 1 with positive refractive power at the first optical element G1, the clear aperture of the optical lens 10 can be effectively increased while considering the module size, and a large aperture can be realized.

[0395] The focal length fL2 of the second lens L2 satisfies fL2 = -25.62 mm, allowing the second lens L2 to have negative optical power. It is understandable that the second lens group 3 with negative optical power can better compensate for aberrations and improve the imaging quality of the optical lens 10. Furthermore, the second lens group 3 can reduce the incident angle of the light beam on the second optical element G2, reducing the design difficulty of the second optical element G2 and achieving better imaging results.

[0396] Specifically, the focal length f1 of the first optical element G1 satisfies: f1 = -132.6mm, the focal length fs of the super-telephoto end of the optical lens 10 satisfies: fs = 19.07mm, and the optical lens 10 satisfies: |f1 / fs| = 6.95. It can be understood that by limiting the absolute value of the ratio of the focal length f1 of the first optical element G1 to the focal length fs of the super-telephoto end of the optical lens 10 to 6.95, the optical lens 10 can have good optical image stabilization performance. Simultaneously, the optical lens 10 can have a smaller module length, enabling a miniaturized design of the optical lens 10.

[0397] Among them, the focal length f2 of the second optical element G2 satisfies: f2 = 12.652mm, the focal length fs at the super-telephoto end of the optical lens 10 satisfies: fs = 19.07mm, and the optical lens 10 satisfies: |f2 / fs| = 0.66. It can be understood that by limiting the absolute value of the ratio of the focal length f2 of the second optical element G2 to the focal length fs at the super-telephoto end of the optical lens 10 to 0.66, the sensitivity of the second optical element G2 and the third optical element G3 is suitable. At the same time, the travel distances of both the second optical element G2 and the third optical element G3 are relatively small.

[0398] The space required for both G2 and the third optical element G3 is relatively small, which is beneficial for achieving a miniaturized optical lens 10.

[0399] Among them, the focal length f3 of the third optical element G3 satisfies: f3 = -14.51mm, the focal length fs at the super-telephoto end of the optical lens 10 satisfies: fs = 19.07mm, and the optical lens 10 satisfies: |f3 / fs| = 0.76. It can be understood that by limiting the absolute value of the ratio of the focal length f3 of the third optical element G3 to the focal length fs at the super-telephoto end of the optical lens 10 to 0.76, the sensitivity of the second optical element G2 and the third optical element G3 is suitable. At the same time, the travel distances of both the second optical element G2 and the third optical element G3 are relatively small.

[0400] The space required for both G2 and the third optical element G3 is relatively small, which is beneficial for achieving a miniaturized optical lens 10.

[0401] The optical lens 10 satisfies: |L1S1R / fs| = 1.170949135. It can be understood that by limiting the absolute value |L1S1R / fs| of the ratio of the curvature radius L1S1R of the entrance surface 11 of the first optical element G1 and the focal length fs of the super-telephoto end of the optical lens 10 to be equal to 1.170949135, the optical lens 10 can better balance the light collection performance and the optical anti-shake performance.

[0402] The optical lens 10 satisfies: |L2S2R / fs| = 1.190875721. It can be understood that by limiting the absolute value |L2S2R / fs| of the ratio of the curvature radius L2S2R of the exit surface 13 of the first optical element G1 and the focal length fs of the super-telephoto end of the optical lens 10 to be equal to 1.190875721, the optical lens 10 can better balance the performance of divergent light and the optical anti-shake performance.

[0403] According to the data in Table 3a and Table 3b, part of the parameters of the camera module 300 of the third embodiment of the present application can be obtained, which are shown in Table 3d as follows.

[0404] Table 3d Part of the parameters of the camera module 300 of the third embodiment

[0405] ​ ​ ​ ​ ​ 6.25 3.13 3.13 ​ 16.46 19.07 14.99 ​ 2.4 3.1 2.3 ​ 29 12 25.6

[0406] The optical lens 10 satisfies: IHs < IHt. It can be understood that by limiting the image height IHs of the super-telephoto end of the optical lens 10 to be smaller than the image height IHt of the telephoto end of the optical lens 10, the image blur problem caused by shaking or vibration can be reduced by reducing the image height IHs of the super-telephoto end of the optical lens 10, which helps to optimize the optical performance of the optical lens 10 (such as reducing distortion and chromatic aberration) and improve the imaging quality of the optical lens 10. The smaller image height IHs of the super-telephoto end of the optical lens 10 means that the focusing stroke of the super-telephoto end is shorter, thereby achieving fast focusing. In addition, the smaller image height IHs of the super-telephoto end of the optical lens 10 means that simpler optical design can achieve higher imaging quality, in other words, the optical lens 10 can use fewer or smaller optical elements, which can reduce the volume and weight of the optical lens 10, and reduce the production cost and assembly complexity of the optical lens 10.

[0407] The field of view FOV of the optical lens 10 is smaller, which can reduce or avoid distortion and distortion of the image edge, and the field of view of the optical lens 10 is smaller and the optical magnification is larger, which can better meet the long focal design of the optical lens 10.

[0408] ​ is the simulation effect of the telephoto end of the camera module 300 of the third embodiment ​ .

[0409] As shown in ​ , when the camera module 300 is at the long-focus end, the normalized coordinates of the camera module 300 are all small, the correction of the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0410] ​ is a simulation effect diagram two of the long-focus end of the camera module 300 of the third implementation.

[0411] As shown in ​ , when the camera module 300 is at the long-focus end, the optical distortion ratio of the camera module 300 at different image heights is less than 5%, which can ensure that the picture has no obvious deformation, the optical distortion degree of the image is small, and the imaging quality of the camera module 300 is high.

[0412] ​ is a simulation effect diagram of the super long-focus end of the camera module 300 of the third implementation ​ .

[0413] As shown in ​ , when the camera module 300 is at the super long-focus end, the normalized coordinates of the camera module 300 are all small, the correction of the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0414] ​ is a simulation effect diagram two of the super long-focus end of the camera module 300 of the third implementation.

[0415] As shown in ​ , when the camera module 300 is at the super long-focus end, the optical distortion ratio of the camera module 300 at different image heights is less than 1%, which can ensure that the picture has no obvious deformation, the optical distortion degree of the image is small, and the imaging quality of the camera module 300 is high.

[0416] ​ is a simulation effect diagram of the macro state of the super long-focus end of the camera module 300 of the third implementation ​ .

[0417] As shown in ​ , when the camera module 300 is at the macro state of the super long-focus end, the normalized coordinates of the camera module 300 are all small, the correction of the axial chromatic aberration (spherical aberration, chromatic aberration, etc.) of the camera module 300 is good, and the imaging quality of the camera module 300 is high.

[0418] ​ is a simulation effect diagram two of the macro state of the super long-focus end of the camera module 300 of the third implementation.

[0419] As shown in ​ When the camera module 300 is in the macro state at the super-telephoto end, the optical distortion of the camera module 300 at different image heights is less than 5%, which can ensure that the picture is not obviously deformed, the optical distortion degree of the image is small, and the imaging quality of the camera module 300 is high.

[0420] 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 as needed. It should be noted that all the above drawings are exemplary drawings of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not limited to the actual product of the present application. 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 (10), characterized in that, The optical lens (10) comprises, in order from the object side to the image side, a first optical element (G1), a second optical element (G2) and a third optical element (G3), the first optical element (G1) is used for changing the propagation direction of the optical axis from a first direction to a second direction, the first direction is different from the second direction, the first optical element (G1) has a negative focal power, the second optical element (G2) has a positive focal power, and the third optical element (G3) has a negative focal power; The first optical element (G1) comprises, in order from the object side to the image side, an incident surface (11), a first reflection surface (12) and an exit surface (13), the incident surface (11) is a convex surface near the optical axis, the first reflection surface (12) changes the propagation direction of the optical axis from the first direction to the second direction, and the exit surface (13) is a concave surface near the optical axis; During the anti-shake process of the optical lens (10), the first optical element (G1) rotates around the first direction, and / or rotates around the second direction, and / or rotates around a third direction different from the first direction and the second direction; The optical lens (10) can realize continuous zooming, and during the zooming process of the optical lens (10), the first optical element (G1) is a fixed optical element, and the second optical element (G2) and the third optical element (G3) can move along the second direction; The optical lens (10) satisfies: 0.4≤|L2S2R / fs|≤6, L2S2R is the radius of curvature of the exit surface (13) of the first optical element (G1), and fs is the focal length of the super-telephoto end of the optical lens (10).

2. The optical lens (10) according to claim 1, characterized in that, The second direction includes a first sub-direction and a second sub-direction opposite in direction, and the first sub-direction is a direction in which the third optical element (G3) points to the second optical element (G2); During the zooming process of the optical lens (10) from the long-focus end to the super-telephoto end, the first optical element (G1) is a fixed optical element, and the second optical element (G2) and the third optical element (G3) move along the first sub-direction; During the zooming process of the optical lens (10) from the super-telephoto end to the long-focus end, the first optical element (G1) is a fixed optical element, and the second optical element (G2) and the third optical element (G3) move along the second sub-direction.

3. The optical lens (10) according to claim 2, characterized in that, During the zooming process of the optical lens (10) from the long-focus end to the long-focus end macro state, the first optical element (G1) and the third optical element (G3) are both fixed optical elements, the second optical element (G2) moves along the first sub-direction, or the first optical element (G1) and the second optical element (G2) are both fixed optical elements, the third optical element (G3) moves along the second sub-direction, or the first optical element (G1) is a fixed optical element, the second optical element (G2) moves along the first sub-direction, and the third optical element (G3) moves along the second sub-direction.

4. The optical lens (10) according to claim 2, characterized in that, During zooming of the optical lens (10) from the ultra-telephoto end to the macro state at the ultra-telephoto end, the first optical element (G1) and the third optical element (G3) are fixed optical elements, the second optical element (G2) moves along the first sub-direction, or the first optical element (G1) and the second optical element (G2) are fixed optical elements, the third optical element (G3) moves along the second sub-direction, or the first optical element (G1) is a fixed optical element, the second optical element (G2) moves along the first sub-direction, and the third optical element (G3) moves along the second sub-direction.

5. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) satisfies 0.1≤|f1 / fs|≤9, where f1 is the focal length of the first optical element (G1).

6. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) satisfies 0.05≤|f2 / fs|≤2, where f2 is the focal length of the second optical element (G2).

7. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) satisfies 0.05≤|f3 / fs|≤2, where f3 is the focal length of the third optical element (G3).

8. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) satisfies 0.4≤|L1S1R / fs|≤3, where L1S1R is the radius of curvature of the entrance surface (11) of the first optical element (G1).

9. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The first optical element (G1) comprises a turning element (2), the turning element (2) comprises a first reflecting surface (12), and the turning element (2) is a prism or a mirror.

10. The optical lens (10) according to claim 9, characterized in that, The turning element (2) satisfies Nd≤2.1, where Nd is the refractive index of the turning element (2).

11. The optical lens (10) according to claim 9, characterized in that, The turning element (2) comprises an exit surface (22), and the exit surface (22) of the turning element (2) is a spherical mirror, a cylindrical mirror or a free-form surface.

12. The optical lens (10) according to claim 9, characterized in that, The first optical element (G1) comprises a first lens group (1) and a second lens group (3), the image-side surface of the first lens group (1) is fixedly connected to the object-side surface of the turning element (2), and the object-side surface of the second lens group (3) is fixedly connected to the image-side surface of the turning element (2).

13. The optical lens (10) according to claim 12, characterized in that, The first lens group (1) comprises at least one lens, and the first lens group (1) has positive refractive power. The second lens group (3) comprises at least one lens, and the second lens group (3) has negative refractive power.

14. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) further comprises a fourth optical element (G4) located on the image side of the third optical element (G3), and the fourth optical element (G4) is used for changing the optical axis of the second direction to a fourth direction different from the first direction and the second direction.

15. The optical lens (10) according to claim 14, characterized in that, The fourth optical element (G4) comprises at least one light turning element (5), the light turning element (5) comprises a second reflecting surface (52), and the light turning element (5) is an oblique-angle prism or a right-angle prism.

16. The optical lens (10) according to claim 15, characterized in that, The light turning element (5) is an inclined-angle prism, and a minimum acute angle a of the light turning element (5) satisfies 17.5°≤a≤37.5°, where a is an angle of the minimum acute angle a of the light turning element (5).

17. The optical lens (10) according to claim 15 or 16, characterized in that, The light turning element (5) includes an exit surface (53), and the exit surface (53) of the light turning element (5) is a spherical mirror, a cylindrical mirror, or a free-form surface.

18. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) further includes at least one diaphragm (4) located on an image side of the first optical element (G1).

19. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) satisfies FOV≤40°, where FOV is a field of view of the optical lens (10).

20. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The optical lens (10) satisfies IHs<IHt, where IHs is an image height of a super-telephoto end of the optical lens (10), and IHt is an image height of a telephoto end of the optical lens (10).

21. The optical lens (10) according to any one of claims 1 to 4, characterized in that, The second optical element (G2) satisfies β≥0.3, where β is a magnification of the second optical element (G2) when the optical lens (10) is in a macro state at a telephoto end.

22. The optical lens (10) according to any one of claims 1 to 4, characterized in that, Different materials of different lenses of the optical lens (10) have different temperature characteristics.

23. A camera module (300) comprising: An image sensor (20) is located on an image side of the optical lens (10).

24. An electronic device (1000), characterized by, An image processor (400) is in communication connection with the camera module (300), and the image processor (400) is configured to acquire image data from the camera module (300) and process the image data.

Images