Optical lens, camera module and electronic equipment

Abstract

The invention relates to the field of optical lenses, in particular to an optical lens, a camera module and electronic equipment. The optical lens comprises a first lens group with positive focal power; the second lens group has positive focal power; the third lens group has negative focal power; the fourth lens group has positive focal power; the fifth lens group has negative focal power; and an optical path switching element; wherein the third lens group, the fourth lens group and the fifth lens group are sequentially arranged in the direction from the object side to the image side, and when the optical lens is in a first shooting mode, the optical lens has a first focal length; when the optical lens is in the second shooting mode, the optical lens has a second focal length; in the process of switching the optical lens from the first shooting mode to the second shooting mode, at least two of the third lens group, the fourth lens group and the fifth lens group move along the optical axis, and the optical lens is switched from the first focal length to the second focal length, so that the optical lens has relatively high optical path adjusting capability; and the miniaturization design of the optical lens is facilitated.

Description

Technical Field

[0001] This application relates to the field of optical lenses, and more particularly to an optical lens, a camera module, and an electronic device. Background Technology

[0002] Compared to digital zoom, which suffers from image quality loss, optical zoom offers lossless image quality and significantly improves image quality, making it a key research direction for enhancing the photography performance of electronic devices. Currently, to achieve optical zoom functionality in portable electronic devices such as mobile phones, multiple camera modules with different focal lengths are typically installed inside the device. However, these camera modules are generally large, occupying a significant amount of internal space. Therefore, there is an urgent need to provide alternative optical zoom solutions to address these technical challenges. Summary of the Invention

[0003] The purpose of this application is to provide an optical lens, a camera module, and an electronic device.

[0004] Firstly, the optical lens includes a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group, and an optical path switching element. The first lens group has positive optical power; the second lens group has positive optical power; the third lens group has negative optical power; the fourth lens group has positive optical power; and the fifth lens group has negative optical power. The third, fourth, and fifth lens groups are arranged sequentially from the object side to the image side. When the optical lens is in a first shooting mode, the optical path switching element is located on the image side of the first lens group and on the object side of the third lens group, and the optical lens has a first focal length. When the optical lens is in a second shooting mode, the optical path switching element is located on the image side of the second lens group and on the object side of the third lens group, and the optical lens has a second focal length. During the switching process from the first shooting mode to the second shooting mode, at least two of the third, fourth, and fifth lens groups move along the optical axis, and the optical lens switches from the first focal length to the second focal length.

[0005] The first lens group may include at least one lens. The second lens group may include at least one lens. The third lens group may include at least one lens. The fourth lens group may include at least one lens. The fifth lens group may include at least one lens.

[0006] For example, the optical path switching element may have light-guiding capabilities to enable the propagation of light. The optical path switching element is located on the object side of the third lens group. The optical path switching element can be used to receive light beams from the first lens group and propagate them to the third lens group. The optical path switching element can also be used to receive light beams from the second lens group and propagate them to the third lens group. For example, the optical path switching element may include at least one element that changes the direction of light propagation, such as a prism, a mirror, etc.

[0007] In this embodiment, different lens groups are used to receive object light, so that different lens groups have different focal lengths. By setting an optical path switching element, the optical lens receives the object light of the object through the first lens group and the second lens group respectively, and then propagates it to the third lens group, the fourth lens group and the fifth lens group for imaging. It is equivalent to integrating two lenses into one optical lens, and giving the optical lens two different focal lengths. This allows the optical lens to use different focal lengths (i.e., using the first lens group or the second lens group, entering the first shooting mode or the second shooting mode) in different shooting scenarios, realizing optical zoom with different focal lengths, that is, achieving lossless optical zoom, which is beneficial for obtaining higher quality images, improving the scene adaptability of the optical lens, and greatly improving the user's shooting experience; and it eliminates the need to set up multiple camera modules in the electronic device to achieve shooting with different focal lengths, thereby reducing the size of the camera module.

[0008] By rationally configuring the optical power of the first, second, third, fourth, and fifth lens groups, the cooperation of multiple lens groups with optical power is beneficial for correcting aberrations during optical lens imaging. Furthermore, by moving at least two lens groups, a strong ability to adjust the optical path can be achieved, which allows the movable lens groups to have a smaller movement distance. This helps to further shorten the overall optical length of the optical lens, thereby facilitating the miniaturization design of the optical lens, that is, realizing a small-sized optical lens with zoom capability, which in turn helps to reduce the size of the camera module.

[0009] In some implementations, during the process of switching the optical lens from the first shooting mode to the second shooting mode, the third lens group and the fifth lens group move in the same direction along the optical axis of the third lens group, and the optical lens switches from the first focal length to the second focal length.

[0010] In this embodiment, the third and fifth lens groups are movable, and in conjunction with the optical path switching element, the optical lens is adjusted to a set focal length. Since the third, fourth, and fifth lens groups are arranged sequentially, the third and fifth lens groups are relatively far apart, allowing for ample space on both sides of each group. Therefore, the larger space between the third and fifth lens groups simplifies their design and installation, and also provides them with greater mobility.

[0011] In some embodiments, when the optical lens is in the first shooting mode, the optical path switching element changes the direction of the light beam from the optical axis direction of the first lens group to the optical axis direction of the third lens group; when the optical lens is in the second shooting mode, the optical path switching element changes the direction of the light beam from the optical axis direction of the second lens group to the optical axis direction of the third lens group. The second lens group is located on the side of the first lens group away from the third lens group. During the process of the optical lens switching from the first shooting mode to the second shooting mode, the optical path switching element moves along the optical axis direction of the third lens group.

[0012] In this embodiment, the arrangement directions of the first lens group and the second lens group, the arrangement direction of the third lens group, the fourth lens group, and the fifth lens group, and the moving direction of the optical path switching element are the same. By setting the structure of the optical lens and moving the optical path switching element, the switching between the first shooting mode and the second shooting mode is realized. With fewer moving components, it is beneficial to improve the accuracy of the movement of the optical lens and make the structure of the optical lens simpler, which is beneficial to improving the reliability of the optical lens.

[0013] In some embodiments, the focal length of the first lens group is less than the focal length of the second lens group.

[0014] Among them, because the focal length of the first lens group is smaller than that of the second lens group. Thus, it is easier for the optical lens to have different focal lengths in the first shooting mode and the second shooting mode.

[0015] Among them, the first lens group is arranged on the side close to the third lens group, and the second lens group is located on the side of the first lens group away from the third lens group; the first lens group can make more full use of the distance between the second lens group and the third lens group in the second direction, so there is basically no need to separately provide an accommodation space for the first lens group.

[0016] In this embodiment, by setting the relative sizes of the focal lengths through the positions of the first lens group and the second lens group, it is beneficial to further reasonably utilize the space and to reasonably distribute the focal lengths of the lens groups on the object side of the optical path switching element, which is beneficial to reducing the design difficulty of the optical lens.

[0017] In some embodiments, the optical lens satisfies: 0.2 < P / TTL < 0.3; where P is the moving distance of the optical path switching element during the process of the optical lens switching from the first shooting mode to the second shooting mode, and TTL is the total optical length of the optical lens.

[0018] In this embodiment, by setting a suitable moving distance of the optical path switching element, the optical path switching element can move to receive the light beams of the first lens group and the second lens group respectively, and occupies a relatively small length space, so as to provide sufficient accommodation space and moving space for components such as the third lens group, the fourth lens group, and the fifth lens group.

[0019] In some embodiments, the optical lens satisfies: a < P; where, in the second shooting mode, the optical path switching element and the third lens group have a first distance a; during the process of the optical lens switching from the first shooting mode to the second shooting mode, the moving distance of the optical path switching element is P, and the third lens group moves towards the optical path switching element.

[0020] In this embodiment, the position of the third lens group in the second shooting mode partially overlaps with the position of the optical path switching element in the first shooting mode. The third lens group intrudes into the position of the optical path switching element in the first shooting mode, so as to reuse the overlapping space, thus saving the space of the third lens group in the optical axis direction, which is beneficial to reducing the total optical length TTL, and thus beneficial to the miniaturization design of the optical lens, and will not affect the zoom performance of the optical lens.

[0021] In some embodiments, the optical lens further includes an optical path reflection element. The optical path reflection element is located on the image side of the fifth lens group. The optical path reflection element is used to change the beam from the optical axis direction of the fifth lens group to a third direction. The third direction has an included angle with the optical axis direction of the fifth lens group; the third direction is parallel to the optical axis direction of the first lens group. The optical path reflection element has an exit surface, and the exit surface is perpendicular to the third direction. The exit surface and the first lens group are on the same side of the optical axis of the third lens group.

[0022] In this embodiment, by arranging the optical path reflection element, the optical path can be folded to reduce the total optical length TTL of the optical lens, thus facilitating the miniaturization of the optical lens; and, the optical path reflection element can also facilitate the setting of the position of the imaging surface, thus facilitating the setting of the position of the photosensitive element in the camera module, and is also beneficial to setting a photosensitive element with a larger area, so as to make the imaging quality higher.

[0023] Moreover, since the light beam exits along the third direction from the exit surface of the optical path reflection element, and the exit surface and the first lens group are on the same side of the optical axis of the third lens group, the imaging surface is also on the same side of the optical axis of the third lens group as the first lens group; it is equivalent to reusing the height space occupied by the first lens group in its optical axis direction, so there is no need to reserve additional space for the imaging surface and the photosensitive element, which is beneficial to the position setting of the photosensitive element, and thus beneficial to reducing the height of the optical lens in the third direction and facilitating the miniaturization design.

[0024] In some embodiments, the optical lens satisfies: F2 > F1, and 5 < (|f3 / SK1| + |f5 / SK2|) / M < 20; where SK1 is the distance that the third lens group moves during the process of the optical lens switching from the first shooting mode to the second shooting mode, SK2 is the distance that the fifth lens group moves during the process of the optical lens switching from the first shooting mode to the second shooting mode, f3 is the focal length of the third lens group, f5 is the focal length of the fifth lens group, F1 is the first focal length, F2 is the second focal length, M is the zoom ratio of the optical lens, and M = F2 / F1.

[0025] Exemplarily, 5 < (|f3 / SK1| + |f5 / SK2|) / M < 7; or 10 < (|f3 / SK1| + |f5 / SK2|) / M < 11; or, 15 < (|f3 / SK1| + |f5 / SK2|) / M < 16.

[0026] In this embodiment, when the system focal length of the optical lens changes, the contribution of the zoom elements (such as the third lens group and the fifth lens group) to the total focal length is related to the focal lengths and positions of the zoom elements. By reasonably designing M and reasonably allocating f3 and f5, when the optical lens satisfies the above formula, the optical lens can be designed as a large-zoom-ratio lens with a small size.

[0027] In some embodiments, the optical lens satisfies: 0.15 < f4 / F2 < 0.3; where f4 is the focal length of the fourth lens group and F2 is the second focal length.

[0028] In this embodiment, since the position of the fourth lens group is relatively fixed and the third lens group and the fifth lens group are movable lens groups, the focal length of the fourth lens group is reasonably allocated, which is convenient for further reasonably allocating the focal lengths of the third lens group and the fifth lens group, thereby simplifying the design of the optical lens.

[0029] In some embodiments, the optical lens satisfies: 0.3 < -f3 / F2 < 0.4; where f3 is the focal length of the third lens group and F2 is the second focal length.

[0030] In this embodiment, since the optical lens has a relatively small total optical length TTL, the space provided for the third lens group to move during zooming or focusing is limited. Therefore, setting an appropriate focal length of the third lens group is beneficial for the third lens group to have an appropriate moving distance, so as to be better applied to the optical lens.

[0031] In some embodiments, the optical lens satisfies: 0.3 < -f� / F2 < 0.45; where f5 is the focal length of the fifth lens group and F2 is the second focal length.

[0032] In this embodiment, the optical lens has a relatively small total optical length TTL, providing limited space for the fifth lens group to move during zooming or focusing. Therefore, setting an appropriate focal length for the fifth lens group is beneficial for the fifth lens group to have an appropriate moving distance, thus being better applied to the optical lens.

[0033] In some embodiments, the optical lens satisfies: F2 > F1, and 15 < TTL / M < 20; where TTL is the total optical length of the optical lens, F1 is the first focal length, F2 is the second focal length, and M is the zoom ratio of the optical lens, and M = F2 / F1.

[0034] Exemplarily, when designing the optical lens, the closer TTL / M is to the end value 15, at this time, the optical lens can have a larger zoom ratio M under a certain total optical length TTL; or, at this time, the optical lens can have a smaller total optical length TTL under a certain zoom ratio M. The closer TTL / M is to the end value 20, the lower the design difficulty of the optical lens.

[0035] In this embodiment, by reasonably setting the total optical length TTL and the zoom ratio M, the optical lens has appropriate structure and performance.

[0036] In some embodiments, the optical lens satisfies: F2 / TTL > 0.8.

[0037] In this embodiment, by reasonably setting the second focal length F2 and the total optical length TTL, the optical lens can have a larger second focal length F2 under a certain total optical length TTL, thereby enabling the optical lens to have stronger telephoto capabilities; or, the optical lens can have a smaller total optical length TTL under a certain second focal length F2, making the optical lens have a smaller size.

[0038] In some embodiments, the optical lens satisfies: 6 < (F1 + F2) / I MH < 10; where I MH is the semi-image height of the optical lens, F1 is the first focal length, and F2 is the second focal length.

[0039] In this embodiment, by reasonably designing the first focal length F1, the second focal length F2, and the semi-image height I MH, the optical lens has relatively large first and second focal lengths F1 and F2, and has an appropriate semi-image height I MH, making the three parameters relatively balanced. It can be understood that the photosensitive element needs to be adapted to the semi-image height I MH. Therefore, an appropriate semi-image height is beneficial for selecting a photosensitive element of an appropriate size. By designing appropriate first and second focal lengths F1 and F2, and semi-image height I MH, the equivalent focal lengths corresponding to the first focal length F1 and the second focal length F2 can be obtained.

[0040] In some embodiments, the optical lens satisfies: M = F2 / F1, where 1 < M < 2; where M is the zoom ratio of the optical lens; F1 is the first focal length, and F2 is the second focal length.

[0041] Exemplarily, the first focal length F1 and the second focal length F2 in this embodiment are effective focal lengths, and the zoom in this embodiment is a lossless optical zoom, and the equivalent zoom ratio is the same as the effective zoom ratio.

[0042] In this embodiment, a suitable zoom ratio M is set, which is beneficial to balancing the relationship between a smaller total optical length TTL and a larger zoom ratio M, thereby making the design of the optical lens easier.

[0043] In some embodiments, the optical lens satisfies: 1 < f2 / f1 < 2; where f1 is the focal length of the first lens group, and f2 is the focal length of the second lens group.

[0044] Exemplarily, the value of the ratio f2 / f1 of the focal length f2 of the second lens group to the focal length f1 of the first lens group can also be within the range of 1 to 1.5.

[0045] In this embodiment, the optical lens multiplexes the third lens group, the fourth lens group, and the fifth lens group in the first shooting mode and the second shooting mode. By reasonably setting the zoom ratio M, the first lens group and the second lens group can have a larger zoom ratio, and can be better compatible with the third lens group, the fourth lens group, and the fifth lens group, thereby reducing the design difficulty and enabling the optical lens to have a better imaging effect.

[0046] In some embodiments, the optical lens is configured such that during the focusing process of the optical lens, at least one lens in the third lens group, the fourth lens group, and the fifth lens group moves along the optical axis.

[0047] In this embodiment, by moving at least one of the three for focusing, it is possible to achieve clear imaging of the optical lens from macro to infinity distances (i.e., the optical lens can be used for both telephoto shooting and macro shooting), making the shooting distance range of the optical lens larger and the application range wider.

[0048] In some embodiments, the optical lens is configured such that during the focusing process of the optical lens, the third lens group and the fifth lens group move along the optical axis direction of the third lens group.

[0049] In this embodiment, since the third lens group and the fifth lens group can be used for zooming the optical lens by moving, and the third lens group and the fifth lens group also move during focusing, the driving components for the third lens group and the driving components for the fifth lens group can be multiplexed respectively, that is, the driving components during the zooming and focusing processes can be the same, which is beneficial to simplifying the setting of the driving structure of the optical lens and is also beneficial to the miniaturization design of the optical lens.

[0050] Secondly, embodiments of this application provide a camera module, including a photosensitive element and an optical lens as provided in any of the above embodiments, wherein the photosensitive element is located on the image side of the optical lens.

[0051] In this embodiment, the camera module is small in size and has strong zoom capability.

[0052] In some implementations, the photosensitive element is configured such that during camera module image stabilization, the photosensitive element moves in a direction perpendicular to the optical axis of the photosensitive element.

[0053] In this embodiment, by moving the photosensitive element, the light incident on the photosensitive element can be kept relatively stable, thereby reducing image jitter and improving the image quality of the camera module.

[0054] Thirdly, embodiments of this application provide an electronic device, characterized in that it includes an image processor and a camera module as provided in the second aspect, the image processor being communicatively connected to the camera module, and the image processor being used to acquire image data from the camera module and process the image data.

[0055] In this embodiment, the electronic device has strong adaptability to the shooting environment, strong shooting capabilities, and a good user experience. Attached Figure Description

[0056] To illustrate the technical solutions in the embodiments or background art of this application, the accompanying drawings used in the embodiments or background art of this application will be described below.

[0057] In the attached image:

[0058] Figure 1 This is a schematic diagram of the structure of the electronic device provided in some embodiments of this application;

[0059] Figure 2 yes Figure 1 A partially exploded structural diagram of the electronic device shown.

[0060] Figure 3 yes Figure 1 The diagram shown is a simplified structural representation of the camera module.

[0061] Figure 4 yes Figure 3 The diagram shown is a simplified structural representation of a camera module in some embodiments.

[0062] Figure 5 yes Figure 4 The diagram shown is a simplified structural representation of the camera module in both the first and second shooting modes.

[0063] Figure 6 yes Figure 5 The diagram shows the structure of the camera module in some embodiments, in the first shooting mode and the second shooting mode.

[0064] Figure 7a yes Figure 6 The axial chromatic difference curve of the camera module shown in some embodiments in the first shooting mode;

[0065] Figure 7b yes Figure 6 The image bokeh curve of the camera module shown in some embodiments in the first shooting mode;

[0066] Figure 7c yes Figure 6 The image shown is a distorted image of the camera module in a first shooting mode in some embodiments.

[0067] Figure 8a yes Figure 6 The axial chromatic difference curve of the camera module shown in some embodiments in the second shooting mode;

[0068] Figure 8b yes Figure 6 The image bokeh curve of the camera module shown in some embodiments in the second shooting mode;

[0069] Figure 8c yes Figure 6 The image shown is a distorted image of the camera module in a second shooting mode in some embodiments.

[0070] Figure 9 yes Figure 4 The diagram shows the structure of the camera module in a first shooting mode and a second shooting mode in some other embodiments.

[0071] Figure 10a yes Figure 9 The axial chromatic difference curve of the camera module shown in some embodiments in the first shooting mode;

[0072] Figure 10b yes Figure 9 The image bokeh curve of the camera module shown in some embodiments in the first shooting mode;

[0073] Figure 10c yes Figure 9 The image shown is a distorted image of the camera module in a first shooting mode in some embodiments.

[0074] Figure 11a yes Figure 9 The axial chromatic difference curve of the camera module shown in some embodiments in the second shooting mode;

[0075] Figure 11b yes Figure 9 The image bokeh curve of the camera module shown in some embodiments in the second shooting mode;

[0076] Figure 11c yes Figure 9 The image shown is a distorted image of the camera module in a second shooting mode in some embodiments.

[0077] Figure 12 yes Figure 4 The diagram shows the structure of the camera module in a first shooting mode and a second shooting mode in some embodiments.

[0078] Figure 13a yes Figure 12 The axial chromatic difference curve of the camera module shown in some embodiments in the first shooting mode;

[0079] Figure 13b yes Figure 12 The image bokeh curve of the camera module shown in some embodiments in the first shooting mode;

[0080] Figure 13c yes Figure 12 The image shown is a distorted image of the camera module in a first shooting mode in some embodiments.

[0081] Figure 14a yes Figure 12 The axial chromatic difference curve of the camera module shown in some embodiments in the second shooting mode;

[0082] Figure 14b yes Figure 12 The image bokeh curve of the camera module shown in some embodiments in the second shooting mode;

[0083] Figure 14c yes Figure 12 The image shown is a distorted image of the camera module in a second shooting mode in some embodiments.

[0084] Figure 15 yes Figure 4 The diagram shows the structure of the camera module in a first shooting mode and a second shooting mode in some embodiments.

[0085] Figure 16a yes Figure 15 The axial chromatic difference curve of the camera module shown in some embodiments in the first shooting mode;

[0086] Figure 16b yes Figure 15 The image bokeh curve of the camera module shown in some embodiments in the first shooting mode;

[0087] Figure 16c yes Figure 15 The image shown is a distorted image of the camera module in a first shooting mode in some embodiments.

[0088] Figure 17a yes Figure 15 The axial chromatic difference curve of the camera module shown in some embodiments in the second shooting mode;

[0089] Figure 17b yes Figure 15 The image bokeh curve of the camera module shown in some embodiments in the second shooting mode;

[0090] Figure 17c yes Figure 15 The image shown is a distortion diagram of the camera module in a second shooting mode in some embodiments. Detailed Implementation

[0091] For ease of understanding, the English abbreviations and related technical terms used in the embodiments of this application will be explained and described below.

[0092] Optical power is equal to the difference between the convergence of the image-side beam and the convergence of the object-side beam; it characterizes the ability of an optical system to deflect light rays.

[0093] A lens or lens group with positive optical power, having a positive focal length, and having the effect of converging light.

[0094] A lens or lens group with negative optical power has a negative focal length and has the effect of diverging light.

[0095] 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 perpendicular distance from the optical center of a lens or lens group to the focal plane when a scene at infinity is projected into a sharp image. From a practical perspective, it can be understood as the distance from the center of the lens to the focal plane when the object is at infinity. For prime lenses, the position of their optical center remains constant; for telephoto lenses, changes in the optical center result in changes in the focal length.

[0096] The object side is defined by the lens; the side where the object is located is called the object side, and the surface of the lens closest to the object side is called the object side surface.

[0097] The image side is the side on which the image of the object is located, with the lens as the boundary. The surface of the lens closest to the image side is called the image side surface.

[0098] An aperture diaphragm is a device used to control the amount of light passing through the lens and entering the sensor inside the camera body; it is usually located inside the lens.

[0099] Aperture value, also known as F-number (Fno), is a relative value derived from the lens's focal length divided by the lens's entrance pupil diameter (the reciprocal of the relative aperture). A smaller aperture value allows more light to enter the lens in the same unit of time. A smaller aperture value results in a shallower depth of field, blurring the background and creating an effect similar to a telephoto lens.

[0100] Total track length (TTL) refers to the total length from the surface of the lens closest to the object to the imaging plane. TTL is a major factor in determining the height of the camera.

[0101] The imaging plane is located on the image side of all lenses in a telephoto lens, and is the plane on which the image is formed after light passes through each lens in the telephoto lens in sequence.

[0102] The optical axis is a perpendicular axis passing through the center of a lens; it also refers to the center line of a light beam (light column) or the axis of symmetry of an optical system. The optical axis of a lens is the axis passing through the centers of all the individual lenses within the lens. When light rays parallel to the optical axis enter a convex lens, an ideal convex lens should converge all the light rays to a single point behind the lens; this point where all the light rays converge is called the focal point.

[0103] The focal point is the point where parallel light rays converge after being refracted by a lens or lens group.

[0104] The image-side focal plane, also known as the back focal plane or the second focal plane, is a plane that passes through the image-side focal point (also known as the back focal point or the second focal point) and is perpendicular to the optical axis of the system.

[0105] The Abbe number, also known as the 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.

[0106] The field of view (FOV) in optical instruments is the angle between the two edges of the lens, representing the maximum range through which the image of the target object can pass through the lens. The size of the FOV determines the field of view of the optical instrument; a larger FOV results in a wider field of view but a lower optical magnification.

[0107] Half-image height (ImH): refers to the height of the half-image formed by the lens.

[0108] Maximum Image Circle Diameter (MIC) is the diameter of the largest circle imaged by a circular optical system. It depends on or is determined by the size of the sensor used in conjunction with the system.

[0109] Aberrations are the properties of an ideal optical system in the paraxial region. Paraxial rays emitted from a point on an object intersect the image plane at a single point (i.e., the paraxial image point). However, in reality, rays passing through different apertures of a lens rarely intersect perfectly at a single point. Instead, they deviate from the position of the paraxial image point. These differences are collectively referred to as aberrations.

[0110] Axial chromatic aberration, also known as longitudinal chromatic aberration, positional chromatic aberration, or axial aberration, occurs when a beam of light parallel to the optical axis converges at different positions after passing through a lens. This aberration is called positional chromatic aberration or axial chromatic aberration. This is because the lens images different wavelengths of light at different positions, causing the image-side focal planes of different colors of light to not coincide, resulting in the dispersion of polychromatic light.

[0111] Distortion, also known as distortion, refers to the degree of distortion in the image formed by an optical system relative to the object itself. Distortion occurs due to the spherical aberration of the aperture; the height of the intersection point between the principal ray from different fields of view and the Gaussian image plane is not equal to the ideal image height, and this difference is the distortion. Therefore, distortion only changes the imaging position of an off-axis object point on the ideal plane, causing distortion in the image shape, but it does not affect the image's sharpness.

[0112] Astigmatism occurs because the object point is not on the optical axis of the optical system, and the emitted beam of light has an angle with the optical axis. After refraction by a lens, the convergence points of the meridional and sagittal beams are not at the same point. That is, the beam cannot be focused at a single point, resulting in an unclear image, hence astigmatism. The meridional and sagittal beams are the names of beams in two perpendicular planes within a rotationally symmetric optical system.

[0113] The meridional plane is the plane formed by the principal ray (principal beam) of an object point outside the optical axis and the optical axis.

[0114] The sagittal surface is the plane that passes through the principal ray (principal beam) of an object point outside the optical axis and is perpendicular to the meridional plane.

[0115] Field curvature refers to the difference in optical axis between the position of the sharpest image point after rays from the off-center field of view pass through an optical lens assembly and the position of the sharpest image point in the central field of view. When field curvature exists in a lens, the intersection of the entire beam does not coincide with the ideal image point. Although a sharp image point can be obtained at each specific point, the entire image plane is a curved surface.

[0116] Optical image stabilization (OIS) relies on the structure and movement of special lenses or image sensors to minimize image instability caused by operator shake during use.

[0117] Auto focus (AF) is a method that uses the principle of light reflection from an object to receive the reflected light from the sensor on the camera (module), process it through a computer, and drive the motorized focusing device to focus.

[0118] The embodiments of this application are described below with reference to the accompanying drawings.

[0119] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Multiple" refers to at least two.

[0120] The directional terms mentioned in the embodiments of this application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side", etc., are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0121] In the embodiments of this application, the relative positional relationships mentioned, such as parallel, perpendicular, and aligned, are defined in relation to the current technological level, rather than being absolutely strict. Slight deviations are permissible; approximations of parallelism, perpendicularity, or alignment are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0122] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0123] Please see Figure 1 and Figure 2 , Figure 1This is a schematic diagram of the structure of the electronic device 100 provided in some embodiments of this application. Figure 2 yes Figure 1 This is a partially exploded structural diagram of the electronic device 100. In this embodiment, the electronic device 100 is described as a mobile phone. It is understood that... Figure 1 and Figure 2 The electronic device 100 is shown only schematically, and the actual shape, size, location, and construction of these components are not subject to change. Figure 1 and Figure 2 Due to limitations, electronic device 100 may also include, compared to Figure 1 and Figure 2 More or fewer parts.

[0124] In some embodiments, the electronic device 100 may include a screen 10, a housing 20, and a camera module 30. The screen 10 is used to display images, videos, etc. The screen 10 includes a light-transmitting cover 101 and a display screen 102. The light-transmitting cover 101 and the display screen 102 are stacked and fixedly connected. The light-transmitting cover 101 mainly serves to protect the display screen 102 and prevent dust. The material of the light-transmitting cover 101 includes, but is not limited to, glass. The display screen 102 can be a flexible display screen or a rigid display screen. For example, the display screen 102 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MLED) display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD) display screen, etc.

[0125] For example, the housing 20 is used to protect the internal electronic components of the electronic device 100. The housing 20 includes a back cover 201, a frame 202, and a camera decorative cover 203. The back cover 201 is located on the side of the display screen 102 away from the light-transmitting cover plate 101, and is stacked with the light-transmitting cover plate 101 and the display screen 102. The frame 202 is fixed to the back cover 201. For example, the frame 202 can be fixedly connected to the back cover 201 by adhesive. The frame 202 can also be integrally formed with the back cover 201, that is, the frame 202 and the back cover 201 are a single structure. The frame 202 is located between the back cover 201 and the light-transmitting cover plate 101. The light-transmitting cover plate 101 can be fixed to the frame 202 by adhesive. The light-transmitting cover plate 101, the back cover 201, and the frame 202 form an internal receiving space for the electronic device 100. This internal receiving space houses the display screen 102.

[0126] For example, the camera module 30 is used to capture photos / videos. For example, the camera module 30 may be located within the internal storage space of the electronic device 100. The number of camera modules 30 can be one or more; for example, two are illustrated in this embodiment. The camera module 30 can be used as a rear camera module 30 or as a front camera module 30.

[0127] For example, the light-incident surface of the camera module 30 faces the back cover 201. The back cover 201 has a mounting opening 2011, and the camera decorative cover 203 covers and is fixed to the mounting opening 2011. The camera decorative cover 203 is used to protect the camera module 30. In some embodiments, the camera decorative cover 203 protrudes to the side of the back cover 201 away from the light-transmitting cover plate 101. In this way, the camera decorative cover 203 can increase the mounting space of the camera module 30 in the thickness direction of the electronic device 100. In other embodiments, the camera decorative cover 203 may also be flush with the back cover 201 or recessed into the internal receiving space of the electronic device 100.

[0128] For example, the camera cover 203 may have a light-transmitting window 2031. The light-transmitting window 2031 allows light from the scene to enter the light-receiving surface of the camera module 30. That is, light passes through the back cover and enters the camera module 30.

[0129] In this embodiment, the camera module 30 serves as the rear camera module 30 of the electronic device 100. For example, the two camera modules 30 can be camera module 301 and camera module 302, respectively. Camera module 301 can serve as the rear main camera module 30, and camera module 302 can serve as the rear telephoto camera module 30. In other embodiments, the electronic device 100 may also include another camera module 30, serving as the rear wide-angle camera module 30.

[0130] In other embodiments, the light-incident surface of the camera module 30 faces the light-transmitting cover plate 101. The display screen 102 has a light-path-avoiding hole. This light-path-avoiding hole allows light from the scene to pass through the light-transmitting cover plate 101 and then enter the light-incident surface of the camera module 30. Thus, the camera module 30 serves as a front-facing camera module 30 for the electronic device 100.

[0131] In some embodiments, such as Figure 2 As shown, the electronic device 100 also includes a circuit board 50 and an image processor 60. The circuit board 50 and image processor 60 are located within the internal storage space of the electronic device 100. The image processor 60 is fixed to and electrically connected to the circuit board 50. The image processor 60 is communicatively connected to the camera module 30. The image processor 60 is used to acquire image data from the camera module 30 and process the image data. The communication connection between the camera module 30 and the image processor 60 can include data transmission via electrical connections such as wiring, or data transmission via coupling. It is understood that the camera module 30 and the image processor 60 can also achieve communication through other methods capable of data transmission.

[0132] In some embodiments, the electronic device 100 may further include an analog-to-digital converter (also known as an A / D converter, not shown in the figure). The analog-to-digital converter is connected between the camera module 30 and the image processor 60. The analog-to-digital converter is used to convert the signal generated by the camera module 30 into a digital image signal and transmit it to the image processor 60, whereby the image processor 60 processes the digital image signal and finally displays the image or video on the screen 10.

[0133] In some embodiments, the electronic device 100 may further include a memory (not shown in the figure), which is communicatively connected to the image processor 60. The image processor 60 processes the digital image signal and then transmits the image to the memory so that the image can be retrieved from the memory and displayed on the screen 10 at any time when it is needed to view the image. In some embodiments, the image processor 60 may also compress the processed digital image signal before storing it in the memory to save memory space.

[0134] In other embodiments, the electronic device 100 may also exclude the screen 10 and / or camera cover 203.

[0135] The electronic device 100 may have a width direction X, a length direction Y, and a thickness direction Z, where the length direction Y is perpendicular to the width direction X, and the thickness direction Z is perpendicular to both the width direction X and the length direction Y. The display screen 102 and the housing 20 may be arranged relative to each other in the thickness direction Z of the electronic device 100. In this case, the housing 20 may be perpendicular to the thickness direction Z of the electronic device 100.

[0136] Understandable Figure 1 and Figure 2 The installation position of the camera module 30 in the illustrated embodiment of the electronic device 100 is merely illustrative, and this application does not strictly limit the installation position of the camera module 30. In some other embodiments, the camera module 30 may also be installed in other locations on the electronic device 100, such as the upper middle or upper right corner of the back of the electronic device 100. In some other embodiments, the electronic device 100 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 30 may also be disposed on the auxiliary component.

[0137] Please refer to the following: Figure 2 and Figure 3 , Figure 3 yes Figure 1 The diagram shows a simplified structural representation of the camera module 30.

[0138] In some embodiments, the camera module 30 may include an optical lens 1 and a photosensitive element 2, the photosensitive element 2 being located on the image side of the optical lens 1.

[0139] Among them, the photosensitive element 2 (also known as the image sensor) is a semiconductor chip with hundreds of thousands to millions of photodiodes on its surface, which generate charges when exposed to light.

[0140] Photosensitive element 2 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 photosensitive element 2 faces the optical lens 1. Photosensitive element 2 can be a charge-coupled device (CCD), a complementary metal-oxide-semiconductor (CMOS) device, a phototransistor, or a thin-film transistor, etc. A CCD is made of a highly sensitive semiconductor material that converts light into electrical charge. A CCD consists of many photosensitive units, typically in megapixel units. When the surface of a CCD is illuminated, each photosensitive unit reflects a charge onto the component. The signals generated by all the photosensitive units are added together to form a complete image. Complementary metal-oxide-semiconductor devices mainly utilize semiconductors made of silicon and germanium, allowing N-type (negative) and P-type (positive) semiconductors to coexist on the CCD. The current generated by these complementary effects can be recorded and interpreted by the processing chip as an image.

[0141] The optical lens 1 primarily utilizes the refraction principle of lenses for imaging. Light from the scene passes through the optical lens 1, forming a clear image on the focal plane, which is then recorded by the photosensitive element 2 located on the focal plane. For example, the optical lens 1 can be a telephoto lens, capable of better capturing objects at greater distances.

[0142] The optical lens 1 can be a vertical lens or a periscope lens. This embodiment describes the optical lens 1 as a periscope lens. When the optical lens 1 is a periscope lens, it is better suited for use in thin electronic devices.

[0143] In some embodiments, the camera module 30 may further include a filter 3. The filter 3 may be located between the optical lens 1 and the photosensitive element 2.

[0144] The filter 3 is used to filter out unwanted wavelengths of light, preventing false colors or ripples from the photosensitive element 2, thereby improving its effective resolution and color reproduction. For example, the filter 3 can be an infrared filter 3. In this embodiment, the filter 3 is a separate component. In other embodiments, the filter 3 may be omitted, and filtering may be achieved by surface treatment or material treatment of at least one optical element of the telephoto lens. This application does not strictly limit the specific embodiments of the structure or component used to achieve filtering.

[0145] In some embodiments, the camera module 30 may further include a housing 4. The photosensitive element 2 and the optical lens 1, etc., may be installed inside the housing 4. A light-transmitting opening 41 may be provided on the housing 4 to transmit light, allowing external scene light to enter the optical lens 1. There may be multiple light-transmitting openings 41, allowing scene light to enter the optical lens 1 from different openings 41.

[0146] In this embodiment, external light can pass through the optical lens 1 and illuminate the photosensitive surface of the photosensitive element 2. Exemplarily, the working principle of the camera module 30 is as follows: light reflected from the subject passes through the optical lens 1 and the filter 3 to generate an optical image, which is then projected onto the photosensitive surface of the photosensitive element 2. The photosensitive element 2 converts the optical image into an electrical signal (i.e., an analog image signal) and transmits it to the analog-to-digital converter (ADC), which then converts it into a digital image signal for the image processor 60 (see [link to image processor]). Figure 2 ).

[0147] Please see Figure 4 , Figure 4 yes Figure 3 The diagram shown is a simplified structural representation of the camera module 30 in some embodiments.

[0148] In some embodiments, the optical lens 1 includes a first lens group G1, a second lens group G2, a third lens group G3, a fourth lens group G4, a fifth lens group G5, and an optical path switching element 5. The optical lens 1 has a first shooting mode and a second shooting mode. It is understood that when the optical lens 1 is in the first shooting mode, the camera module 30 is also in the first shooting mode; when the optical lens 1 is in the second shooting mode, the camera module 30 is also in the second shooting mode. It is understood that in the camera module 30, the light emitted from the optical lens 1 can be received and captured by the photosensitive element 2, thereby forming an image.

[0149] The first lens group G1 may include at least one lens. The optical power of the first lens group G1 is positive. The first lens group G1 may not change the direction of the optical axis and can converge light rays, thereby facilitating the focusing of the optical lens 1. The first lens group G1 may include one lens. The first lens group G1 may also include multiple lenses, such as 2, 3, or 4 lenses. When the first lens group G1 has multiple lenses, aberrations can be eliminated or reduced by combining different materials of the multiple lenses; aberrations can also be eliminated or reduced by combining lenses with positive optical power and lenses with negative optical power, but the total optical power of the first lens group G1 is positive. This embodiment does not strictly limit the number of lenses in the first lens group G1.

[0150] The second lens group G2 may include at least one lens. The optical power of the second lens group G2 is positive. The second lens group G2 may not change the direction of the optical axis and can converge light rays, thereby facilitating the focusing of the optical lens 1. The second lens group G2 may include one lens. The second lens group G2 may also include multiple lenses, such as 2, 3, or 4 lenses. When the second lens group G2 has multiple lenses, aberrations can be eliminated or reduced by combining different materials of the multiple lenses; aberrations can also be eliminated or reduced by combining lenses with positive optical power and lenses with negative optical power, but the total optical power of the second lens group G2 is positive. This embodiment does not strictly limit the number of lenses in the second lens group G2.

[0151] The focal length of the second lens group G2 can be different from that of the first lens group G1. Therefore, the second lens group G2 and the first lens group G1 have different focusing capabilities, which is advantageous for forming optical systems with different focal lengths using the first lens group G1 and the second lens group G2 respectively. In some other embodiments, the focal length of the second lens group G2 can be the same as that of the first lens group G1.

[0152] The third lens group G3 may include at least one lens. The optical power of the third lens group G3 is negative. The third lens group G3 may not change the direction of the optical axis, and it can diverge light rays, thereby helping to reduce aberrations in the optical lens 1. The third lens group G3 may include one lens. The third lens group G3 may also include multiple lenses, such as 2, 3, or 4 lenses. When the third lens group G3 has multiple lenses, aberrations can be eliminated or reduced by combining different materials of the multiple lenses; aberrations can also be eliminated or reduced by combining lenses with positive optical power and lenses with negative optical power, but the total optical power of the third lens group G3 is negative. This embodiment does not strictly limit the number of lenses in the third lens group G3.

[0153] The fourth lens group G4 may include at least one lens. The optical power of the fourth lens group G4 is positive. The fourth lens group G4 can focus light without changing the direction of the optical axis, further improving the focusing of the optical lens 1. The fourth lens group G4 may include one lens. The fourth lens group G4 may also include multiple lenses, such as 2, 3, or 4 lenses. When the fourth lens group G4 has multiple lenses, aberrations can be eliminated or reduced by combining different materials of the lenses; aberrations can also be eliminated or reduced by combining lenses with positive optical power and lenses with negative optical power, but the total optical power of the fourth lens group G4 is positive. This embodiment does not strictly limit the number of lenses in the fourth lens group G4.

[0154] The fifth lens group G5 may include at least one lens. The optical power of the fifth lens group G5 is negative. The fifth lens group G5 may not change the direction of the optical axis, and it can diverge light rays, thereby helping to reduce aberrations in the optical lens 1. The fifth lens group G5 may include one lens. The fifth lens group G5 may also include multiple lenses, such as 2, 3, or 4 lenses. When the fifth lens group G5 has multiple lenses, aberrations can be eliminated or reduced by combining different materials of the multiple lenses; aberrations can also be eliminated or reduced by combining lenses with positive optical power and lenses with negative optical power, but the total optical power of the fifth lens group G5 is negative. This embodiment does not strictly limit the number of lenses in the fifth lens group G5.

[0155] The third lens group G3, the fourth lens group G4, and the fifth lens group G5 can be arranged sequentially from the object side to the image side. For example, the axes of the third lens group G3, the fourth lens group G4, and the fifth lens group G5 can be collinear to facilitate imaging by the optical lens 1. It is easy to understand that the first lens group G1 and the second lens group G2 cannot occupy the same position. In the optical axis direction of the third lens group G3, the distance between the first lens group G1 and the third lens group G3 is different from the distance between the second lens group G2 and the third lens group G3; the distance between the first lens group G1 and the third lens group G3 can be closer.

[0156] In this system, the first lens group G1 receives the incident object light and, in conjunction with the third lens group G3, the fourth lens group G4, and the fifth lens group G5, refracts the incident object light to form an image. The second lens group G2 also receives the incident object light and, in conjunction with the third lens group G3, the fourth lens group G4, and the fifth lens group G5, refracts the incident object light to form an image. That is, the first lens group G1 and the second lens group G2 can each receive the object light and form an image; however, because their focal lengths are different, they generally do not receive the object light and form an image simultaneously.

[0157] The optical path switching element 5 can have light-guiding capabilities to enable light propagation. The optical path switching element 5 is located on the object side of the third lens group G3. The optical path switching element 5 can be used to receive light beams from the first lens group G1 and propagate them to the third lens group G3. The optical path switching element 5 can also be used to receive light beams from the second lens group G2 and propagate them to the third lens group G3. Exemplarily, the optical path switching element 5 may include at least one element that changes the direction of light propagation, such as a prism, a mirror, etc.

[0158] To enable the first lens group G1 and the second lens group G2 to be used for imaging, an optical path switching element 5 is provided, which acts as a switch in the optical path. The first lens group G1 and the second lens group G2 serve as the front lens groups of the optical path switching element 5, forming two upstream optical paths. The third lens group G3, the fourth lens group G4, and the fifth lens group G5 can collectively serve as the rear lens group of the optical path switching element 5. The optical path containing the rear lens group is considered as the downstream optical path. These multiple upstream optical paths are connected in parallel to the object side of the optical path switching element 5, and the downstream optical path is connected to the image side of the optical path switching element 5. The optical path switching element 5 is used to enable one of the two upstream optical paths to be connected to the downstream optical path, so that the light in the upstream optical path is transmitted to the downstream optical path. In other words, by operating the optical path switching element 5, any one of the two upstream optical paths can be connected to the downstream optical path, while the other upstream optical paths can be disconnected from the downstream optical path. Alternatively, the optical path switching element 5 can transmit light from any one of the front lens groups to the rear lens group, while preventing light from the remaining front lens groups from being transmitted to the rear lens group. The optical path switching can be achieved by moving the position of the optical path switching element 5 in the optical path, rotating the angle of the optical path switching element 5 in the optical path, or replacing different optical path switching elements 5 in the optical path.

[0159] Under the switching action of the optical path switching element 5, the optical lens 1 can transmit light from one of the first lens group G1 and the second lens group G2 to the rear lens group (such as the third lens group G3, the fourth lens group G4 and the fifth lens group G5). That is, the optical lens 1 can receive object light through different front lens groups to form an image. Furthermore, the optical lens 1 has different effective focal lengths when forming an image through different front lens groups. That is, the optical lens 1 has different effective focal lengths when the rear lens group receives light from different front lens groups, thereby enabling the optical lens 1 to have optical zoom capability.

[0160] Therefore, the optical lens 1 can have a first shooting mode and a second shooting mode. When the optical lens 1 is in the first shooting mode, the optical path switching element 5 is located on the image side of the first lens group G1 and on the object side of the third lens group G3, and the optical lens 1 has a first focal length; when the optical lens 1 is in the second shooting mode, the optical path switching element 5 is located on the image side of the second lens group G2 and on the object side of the third lens group G3, and the optical lens 1 has a second focal length.

[0161] In both the first and second shooting modes, optical lens 1 effectively reuses the third lens group G3, the fourth lens group G4, and the fifth lens group G5. Since the focal length and surface shape of the third lens group G3, the fourth lens group G4, and the fifth lens group G5 remain unchanged, and because the first and second focal lengths differ, the distances between the first lens group G1 and the third lens group G3, and between the second lens group G2 and the third lens group G3, differ. Therefore, it is necessary to adjust the positions of the third lens group G3, the fourth lens group G4, and / or the fifth lens group G5 to correct the optical path, ensuring that the imaging surface of optical lens 1 is the same in both shooting modes. This facilitates imaging by optical lens 1, enabling focusing of optical lens 1 and achieving the same image height in both modes, thus achieving lossless zoom.

[0162] During the switching process from the first shooting mode to the second shooting mode, at least two of the third lens group G3, the fourth lens group G4, and the fifth lens group G5 move along the optical axis of the third lens group G3, and the optical lens 1 switches from the first focal length to the second focal length. Similarly, during the switching process from the second shooting mode to the first shooting mode, at least two of the third lens group G3, the fourth lens group G4, and the fifth lens group G5 move along the optical axis of the third lens group G3. The direction of movement can be opposite to the direction of movement when the optical lens 1 switches from the first shooting mode to the second shooting mode, and the optical lens 1 switches from the first focal length to the second focal length. At this time, by moving at least two lens groups, a strong ability to adjust the optical path can be achieved, which is beneficial to having a smaller moving distance for the movable lens groups, thereby shortening the overall optical length of the optical lens 1 and thus facilitating the miniaturization design of the optical lens 1.

[0163] For example, the total optical length of optical lens 1 can be less than 32 mm, but is not strictly limited to this.

[0164] In this embodiment, different lens groups are set to receive object light, so that different lens groups have different focal lengths. By setting the optical path switching element 5, the optical lens 1 receives the object light of the object through the first lens group G1 and the second lens group G2 respectively, and propagates it to the third lens group G3, the fourth lens group G4 and the fifth lens group G5 respectively for imaging. It is equivalent to integrating two lenses into one optical lens 1, and giving the optical lens 1 two different focal lengths. This allows the optical lens 1 to use different focal lengths (i.e., using the first lens group G1 or the second lens group G2, entering the first shooting mode or the second shooting mode) to shoot in different shooting scenarios, realizing optical zoom with different focal lengths, that is, realizing lossless optical zoom, which is conducive to obtaining higher quality images. The scene adaptability of the optical lens 1 is better, and the user's shooting experience is greatly improved. Moreover, it is not necessary to set multiple camera modules 30 in the electronic device to achieve shooting with different focal lengths, thereby reducing the size of the camera module 30.

[0165] By rationally configuring the optical power of the first lens group G1, the second lens group G2, the third lens group G3, the fourth lens group G4, and the fifth lens group G5, the cooperation of multiple lens groups with optical power is beneficial to correcting aberrations during imaging by the optical lens 1. Furthermore, by moving at least two lens groups, a strong ability to adjust the optical path can be achieved, which is beneficial to allow the movable lens groups to have a smaller moving distance. This is conducive to further shortening the total optical length of the optical lens 1, and thus facilitates the miniaturization design of the optical lens 1, that is, to realize the design of a small-sized optical lens 1 with zoom capability, thereby reducing the size of the camera module 30.

[0166] In some embodiments, the optical path switching element 5 is used to change the propagation direction of the optical axis; the third lens group G3, the fourth lens group G4 and the fifth lens group G5 are arranged along the optical axis direction of the third lens group G3, and the second lens group G2 is located on the side of the first lens group G1 away from the third lens group G3 in the optical axis direction of the third lens group G3.

[0167] The optical axis of the first lens group G1 and the optical axis of the second lens group G2 can both be the first direction, and the first lens group G1 and the second lens group G2 can be arranged along the second direction, which is perpendicular to the first direction.

[0168] When the optical lens 1 is in the first shooting mode, the optical path switching element 5 is located on the image side of the first lens group G1 along the second direction. The optical path switching element 5 is used to change the propagation direction of the light beam from the optical axis direction of the first lens group G1 to the optical axis direction of the third lens group G3, that is, from the first direction to the second direction. At this time, the optical path switching element 5 can be located at the intersection of the optical axes of the first lens group G1 and the third lens group G3. The optical path switching element 5 transmits the light emitted from the first lens group G1 to the third lens group G3. When the optical lens 1 is in the second shooting mode, the optical path switching element 5 is located on the image side of the second lens group G2. The optical path switching element 5 is used to change the propagation direction of the light beam from the optical axis direction of the second lens group G2 to the optical axis direction of the third lens group G3, that is, from the first direction to the second direction. At this time, the optical path switching element 5 is located at the intersection of the optical axes of the second lens group G2 and the third lens group G3. The optical path switching element 5 transmits the light emitted from the second lens group G2 to the third lens group G3. By moving the optical path switching element 5 along the second direction, the optical lens 1 switches between the first shooting mode and the second shooting mode.

[0169] In this embodiment, the positions of the first lens group G1, the second lens group G2, the third lens group G3, the fourth lens group G4, and the fifth lens group G5 in the first direction can be relatively fixed. The optical path switching element 5 can change the propagation direction of the light beam through reflection. The number of reflections of the light beam at the optical path switching element 5 can be one, two, three, etc. The movement of the optical path switching element 5 can be achieved through a structure such as a voice coil motor; this embodiment does not impose strict limitations on this.

[0170] In this example, the arrangement directions of the first lens group G1 and the second lens group G2, the arrangement directions of the third lens group G3, the fourth lens group G4, and the fifth lens group G5, and the moving direction of the optical path switching element 5 are the same. By setting the structure of the optical lens 1 and switching between the first shooting mode and the second shooting mode by moving the optical path switching element 5, fewer moving parts are used, which helps to improve the accuracy of the movement of the optical lens 1 and makes the structure of the optical lens 1 simpler, which helps to improve the reliability of the optical lens 1.

[0171] In other embodiments, the optical path switching element 5 can switch between the first shooting mode and the second shooting mode in other ways. For example, the optical path switching element 5 can be rotated to connect with the first lens group G1 and the second lens group G2 respectively, thereby realizing the switching between the first shooting mode and the second shooting mode.

[0172] Please refer to the following: Figure 4 and Figure 5 , Figure 5 yes Figure 4The diagram shows a simplified structural representation of the camera module 30 in both the first and second shooting modes.

[0173] In some embodiments, during the switching process from a first shooting mode to a second shooting mode, the third lens group G3 and the fifth lens group G5 move along the optical axis of the third lens group G3, and the optical lens 1 switches from a first focal length to a second focal length. At this time, the third lens group G3 and the fifth lens group G5 are movable, cooperating with the optical path switching element 5 to change the optical lens 1 to a set focal length. Since the third lens group G3, the fourth lens group G4, and the fifth lens group G5 are arranged sequentially, the third lens group G3 and the fifth lens group G5 are relatively far apart, allowing for ample space on both sides. Therefore, when configuring the driving components for the third lens group G3 and the fifth lens group G5, the larger space between them makes the design of the driving components easier and facilitates their installation. Furthermore, the larger space on both sides of the third lens group G3 and the fifth lens group G5 provides them with greater mobility.

[0174] It is understandable that the first lens group G1, the second lens group G2, and the fourth lens group G4 in the optical lens 1 can be relatively fixed at this time, but are not strictly limited to this.

[0175] It is understandable that during the process of switching from the first shooting mode to the second shooting mode, that is, during the zooming process, the third lens group G3 and the fifth lens group G5 can move in the same direction.

[0176] In some examples, the focal length of the first lens group G1 is less than the focal length of the second lens group G2. This is because the second lens group G2 is farther from the third lens group G3 in the second direction; in the second direction, the distance between the second lens group G2 and the third lens group G3 is greater than the distance between the first lens group G1 and the third lens group G3.

[0177] Since the focal length of the first lens group G1 is smaller than that of the second lens group G2, it is easier to make the optical lens 1 have different focal lengths in the first shooting mode and the second shooting mode.

[0178] In this configuration, the first lens group G1 is positioned on the side closer to the third lens group G3, and the second lens group G2 is located on the side of the first lens group G1 away from the third lens group G3. The first lens group G1 can make full use of the distance between the second lens group G2 and the third lens group G3 in the second direction, thus basically eliminating the need to create additional space for the first lens group G1.

[0179] In this shooting mode, the second focal length can be greater than the first focal length of the first shooting mode. In this case, the second focal length is greater than the first focal length, the focal length of the second lens group G2 is greater than the focal length of the first lens group G1, and the second lens group G2 is closer to the third lens group G3 than the first lens group G1. This means that the focal lengths of the first lens group G1, the second lens group G2, and the first and second focal lengths are more well-matched, and the focal lengths of the first lens group G1 and the second lens group G2 are also more well-matched with the actual spatial arrangement, facilitating compatibility with the rear lens group and simplifying the design of the optical lens 1.

[0180] For example, both the optical lens 1 in the second shooting mode and the optical lens 1 in the first shooting mode can be telephoto lenses, but the focal length in the second shooting mode is greater than that in the first shooting mode, so that the optical lens 1 can adapt to more shooting environments and have higher image quality. In some other embodiments, the optical lens 1 in the second shooting mode can be a telephoto lens, and the optical lens 1 in the first shooting mode can be a wide-angle lens.

[0181] In this example, setting the relative size of the focal lengths of the first lens group G1 and the second lens group G2 by their positions is beneficial for further rational use of space and for rationally allocating the focal lengths of the lens groups on the object side of the optical path switching element 5, which helps to reduce the design difficulty of the optical lens 1.

[0182] For example, such as Figure 5 As shown, when the optical lens 1 is in the first shooting mode, the optical path switching element 5 is located on the image side of the first lens group G1 and on the object side of the third lens group G3. External light rays can enter through the first lens group G1, pass through the optical path switching element 5, and change the direction of light propagation from the optical axis of the first lens group G1 to the optical axis of the third lens group G3. The light then sequentially passes through the third lens group G3, the fourth lens group G4, and the fifth lens group G5. Specifically, the optical path switching element 5 is in the first position, the third lens group G3 is in the second position, and the fifth lens group G5 is in the third position.

[0183] When optical lens 1 is in the second shooting mode, the optical path switching element 5 is located on the image side of the second lens group G2 and on the object side of the third lens group G3. External light rays can enter through the second lens group G2, pass through the optical path switching element 5, and change the direction of light propagation from the optical axis of the second lens group G2 to the optical axis of the third lens group G3. The light then sequentially passes through the third lens group G3, the fourth lens group G4, and the fifth lens group G5. Specifically, the optical path switching element 5 is in the fourth position, the third lens group G3 is in the fifth position, and the fifth lens group G5 is in the sixth position. The optical path switching element 5 and the third lens group G3 have a first distance 'a'.

[0184] The optical lens 1 can switch between a first shooting mode and a second shooting mode. For example, when the optical lens 1 switches from the first shooting mode to the second shooting mode, the optical path switching element 5 moves from the first position to the fourth position, the third lens group G3 moves from the second position to the fifth position, and the fifth lens group G5 moves from the third position to the sixth position. Among them, the moving distance of the optical path switching element 5 is P.

[0185] Exemplarily, the optical lens 1 can satisfy: 0.2 < P / TTL < 0.3. Among them, TTL is the total optical length of the optical lens 1. At this time, by setting the appropriate moving distance of the optical path switching element 5, the optical path switching element 5 can receive the light beams of the first lens group G1 and the second lens group G2 respectively through movement, and occupies a relatively small length space, so as to provide sufficient accommodation space and moving space for components such as the third lens group G3, the fourth lens group G4, and the fifth lens group G5. Among them, the total optical length TTL of the optical lens 1 can be less than 35 mm. Further, the total optical length TTL can satisfy: TTL < 32 mm. The value of the total optical length TTL can be 28 mm, 29 mm, 30 mm, 31 mm, 31.5 mm, 31.54 mm or 32 mm. It can be understood that the total optical length of the optical lens 1 in the second shooting mode is longer and has a greater impact on the physical length of the optical lens. Therefore, the total optical length TTL in this example refers to the total optical length of the optical lens 1 in the second shooting mode.

[0186] Exemplarily, the optical lens 1 can satisfy: a < P. At this time, the position of the third lens group G3 in the second shooting mode partially overlaps with the position of the optical path switching element 5 in the first shooting mode. The third lens group G3 invades the position of the optical path switching element 5 in the first shooting mode, which is equivalent to multiplexing the overlapping space, thus saving the space of the third lens group G3 in the optical axis direction, being beneficial to reducing the total optical length TTL, and thus being beneficial to the miniaturization design of the optical lens 1 without affecting the zoom performance of the optical lens 1.

[0187] For example, the range of the first distance a can be within the range of 5 mm to 9 mm. For example, the first distance a can take values of 5 mm, 6 mm, 6.764 mm, 7 mm, 7.5742 mm, 8 mm, 8.202 mm, 9 mm.

[0188] For example, the range of the moving distance P of the optical path switching element 5 can be within the range of 7 mm to 10 mm. For example, P can take values of 7 mm, 7.7 mm, 8 mm, 8.849 mm, 8.95 mm, 9 mm, 9.2 mm, 10 mm.

[0189] In some examples, the first focal length F1 may satisfy: 15 mm < F1 < 19 mm. F1 is the first focal length. For example, F1 may take values such as 15 mm, 16 mm, 16.49 mm, 17 mm, 17.05 mm, 17.06 mm, 17.10 mm, 18 mm or 19 mm. Further, the optical lens 1 may satisfy: 16 < F1 < 18.

[0190] In some examples, the second focal length F2 may satisfy: 27 mm < F2 < 31 mm. F2 is the second focal length. For example, F2 may take values such as 27 mm, 28.09 mm, 28.1 mm, 28.15 mm, 29 mm, 29.50 mm, 30 mm or 31 mm. Further, the optical lens 1 may satisfy: 28 mm < F2 < 30 mm. In some embodiments, the distance that the third lens group G3 moves during the process of the optical lens 1 switching from the first shooting mode to the second shooting mode is SK1, the distance that the fifth lens group G5 moves during the process of the optical lens 1 switching from the first shooting mode to the second shooting mode is SK2, the focal length of the third lens group G3 is f3, the focal length of the fifth lens group G5 is f5, the first focal length is F1, the second focal length is F2, and the zoom ratio of the optical lens 1 is M, M = F2 / F1; the optical lens 1 satisfies Equation (1): 5 < (|f3 / SK1| + |f5 / SK2|) / M < 20.

[0191] Among them, SK1, SK2, f3, f5, F1, and F2 of the optical lens 1 are interrelated, and the above parameters also affect the overall optical length TTL of the optical lens 1. To solve the problem of the overly large volume of the camera module 30, after determining the zoom ratio M, the values of each parameter can be designed to make the TTL smaller.

[0192] Among them, in Equation (1), when the system focal length of the optical lens 1 changes, the contribution of the zoom elements (such as the third lens group G3 and the fifth lens group G5) to the total focal length is related to the focal lengths and positions of the zoom elements. By reasonably designing M and reasonably allocating f3 and f5, when the optical lens 1 satisfies the above Equation (1), the optical lens 1 can be designed as a large-zoom-ratio lens with a small size.

[0193] It should be understood that in formula (1), when the value of (|f3 / SK1| + |f5 / SK2|) / M is closer to the end point value of 5, the total optical length TTL of the optical lens 1 is smaller, which is easy to realize the miniaturization design of the optical lens 1; when the value of (|f3 / SK1| + |f5 / SK2|) / M is closer to the end point value of 20, the TTL of the optical lens 1 is relatively larger, but the design difficulty is smaller. Exemplarily, 5 < (|f3 / SK1| + |f5 / SK2|) / M < 7; or 10 < (|f3 / SK1| + |f5 / SK2|) / M < 11; or 14 < (|f3 / SK1| + |f5 / SK2|) / M < 15. For example, the value of (|f3 / SK1| + |f5 / SK2|) / M can be 5, 6.76, 7.13, 8, 9, 10.08, 11, 12, 13, 14.37, 15, 16, 17, 18, 19, 20.

[0194] In some examples, the optical lens 1 can satisfy: 0.15 < f4 / F2 < 0.3. Where f4 is the focal length of the fourth lens group G4. At this time, since the position of the fourth lens group G4 is relatively fixed, and the third lens group G3 and the fifth lens group G5 are movable lens groups, therefore, the focal length of the fourth lens group G4 is reasonably allocated, so as to facilitate the further reasonable allocation of the focal lengths of the third lens group G3 and the fifth lens group G5, thereby simplifying the design of the optical lens 1. Exemplarily, the value of the ratio f4 / F2 of the focal length f4 of the fourth lens group G4 to the second focal length F2 can be 0.15, 0.17, 0.19, 0.21, 0.23, 0.24, 0.25, 0.26, 0.28, 0.30.

[0195] In some examples, the optical lens 1 can satisfy: 1 < f2 / f1 < 2. In this example, the optical lens 1 multiplexes the third lens group G3, the fourth lens group G4, and the fifth lens group G5 in the first shooting mode and the second shooting mode. By reasonably setting the zoom ratio M, the first lens group G1 and the second lens group G2 can have a larger zoom ratio, and can be better compatible with the third lens group G3, the fourth lens group G4, and the fifth lens group G5, thereby reducing the design difficulty, and can also make the optical lens 1 have a better imaging effect. Exemplarily, the value of the ratio f2 / f1 of the focal length f2 of the second lens group G2 to the focal length f1 of the first lens group G1 can be 1, 1.1, 1.2, 1.32, 1.44, 1.45, 1.48, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0. Further, the value of the ratio f2 / f1 of the focal length f2 of the second lens group G2 to the focal length f1 of the first lens group G1 can also be within the range of 1 to 1.5.

[0196] In some examples, optical lens 1 can satisfy: 0.3 < -f3 / F2 < 0.4. Since the optical power of the third lens group G3 is negative, its focal length is also negative. In this case, because optical lens 1 has a relatively small total optical length (TTL), the space provided for the third lens group G3 to move during zooming or focusing is limited. Therefore, setting a suitable focal length for the third lens group G3 is beneficial for allowing it to have a suitable moving distance, thus enabling better application in optical lens 1. For example, the ratio of the negative of the focal length f3 of the third lens group G3 to the second focal length -f3 / F2 can be 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, or 0.4.

[0197] In some examples, optical lens 1 can satisfy: 0.3 < -f5 / F2 < 0.45. Since the optical power of the fifth lens group G5 is negative, its focal length is also negative. In this case, optical lens 1 has a relatively small total optical length (TTL), providing limited space for the fifth lens group G5 to move during zooming or focusing. Therefore, setting a suitable focal length for the fifth lens group G5 is beneficial for allowing it to have an appropriate moving distance, thus enabling better application in optical lens 1. For example, the ratio of the negative of the focal length f5 of the fifth lens group G5 to the second focal length -f5 / F2 can be 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.4, 0.41, 0.42, 0.43, 0.44, or 0.45.

[0198] It is understood that the aforementioned ratios of focal length f4 to second focal length F2 for the fourth lens group G4, the ratio of focal length f2 to focal length f1 for the second lens group G2, the ratio of focal length f3 to second focal length F2 for the third lens group G3, and the ratio of focal length f5 to second focal length F2 for the fifth lens group G5 can exist independently or in combination. When the above multiple ratio ranges are combined, the optical lens 1 can obtain better aperture value, focusing ability, image quality, and manufacturability. In some embodiments, the camera module 30 can achieve both long-distance shooting and macro shooting through the optical lens 1. For example, the closest object distance for macro shooting can be 10cm, 5cm, or 3cm. For example, macro shooting can be achieved by further focusing in the first shooting mode.

[0199] In some embodiments, the optical lens 1 may satisfy: 1 < M < 2. Here, the zoom ratio M is the ratio of the second focal length F2 to the first focal length F1. Here, the first focal length F1 and the second focal length F2 in this embodiment are the effective focal lengths, and the zoom in this embodiment is a lossless optical zoom, and the equivalent zoom ratio is the same as the effective zoom ratio. In this embodiment, a suitable zoom ratio M is set, which is beneficial to balance the relationship between a smaller total optical length TTL and a larger zoom ratio M, thereby making the design of the optical lens 1 easier. Exemplarily, the value of the zoom ratio M may be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.65, 1.7, 1.79, 1.8, 1.9, 2.0. Further, the value of the zoom ratio M may be within the range of 1.5 to 2.

[0200] In some embodiments, the optical lens 1 may satisfy: F2 > F1, and 15 < TTL / M < 20. Here, M = F2 / F1. Here, when designing the optical lens 1, the closer TTL / M is to the end value 15, at this time, the optical lens 1 can have a larger zoom ratio M under a certain total optical length TTL; or, at this time, the optical lens 1 can have a smaller total optical length TTL under a certain zoom ratio M. The closer TTL / M is to the end value 20, the lower the design difficulty of the optical lens 1. By reasonably setting the total optical length TTL and the zoom ratio M, the optical lens 1 has a suitable structure and performance. Exemplarily, the optical lens 1 may also satisfy: F2 > F1, 15 < TTL / M < 16, or, 16 < TTL / M < 17, or, 17 < TTL / M < 18, or, 18 < TTL / M < 19, or, 19 < TTL / M < 20. For example, the ratio TTL / M of the total optical length TTL to the zoom ratio M may be 15, 16, 16.76, 17, 18, 18.18, 19, 19.09, 19.12, 20.

[0201] Further, the optical lens 1 may satisfy: F2 / TTL > 0.8. At this time, by reasonably setting the second focal length F2 and the total optical length TTL, the optical lens 1 can have a larger second focal length F2 under a certain total optical length TTL, thereby making the optical lens 1 have stronger telephoto capabilities; or, the optical lens 1 can have a smaller total optical length TTL under a certain second focal length F2, making the optical lens 1 have a smaller size. Exemplarily, the ratio F2 / TTL of the second focal length F2 to the total optical length TTL may be 0.8, 0.89, 0.94, 0.98.

[0202] In some embodiments, the optical lens 1 satisfies: 6 < (F1 + F2) / IMH < 10. Here, IMH is the half-image height of the optical lens 1. In this case, by rationally designing the first focal length F1, the second focal length F2, and the half-image height IMH, the optical lens 1 can achieve a relatively large first focal length F1, a large second focal length F2, and a suitable half-image height IMH, thus balancing the three parameters. It is understood that the photosensitive element 2 needs to be adapted to the half-image height IMH; therefore, a suitable half-image height is beneficial for selecting a photosensitive element 2 of appropriate size. By designing suitable first focal length F1, second focal length F2, and half-image height IMH, the equivalent focal length corresponding to the first focal length F1 and the equivalent focal length corresponding to the second focal length F2 can be obtained.

[0203] For example, the ratio of the sum of the first focal length F1 and the second focal length F2 to the half-image height (F1+F2) / I MH can be 6, 7, 8, 8.18, 8.20, 8.82, 8.98, 9, or 10. Further, the ratio of the sum of the first focal length F1 and the second focal length F2 to the half-image height (F1+F2) / I MH can be in the range of 8 to 9.

[0204] For example, the half-image height IMH can meet: 4mm

[0205] In some embodiments, the optical lens 1 is configured such that, during the focusing process of the optical lens 1, at least one of the third lens group G3, the fourth lens group G4, and the fifth lens group G5 moves along the optical axis. For example, autofocus can be performed by moving one of the three lens groups G3, G4, and G5. Autofocus can also be performed by moving two or three of them. The movement of the lens groups can be achieved using a driving component such as a voice coil motor, thereby enabling autofocus.

[0206] At this time, by moving at least one of the three lens groups G3, G4 and G5 to focus, the optical lens 1 can achieve clear imaging from macro to infinity (that is, the optical lens 1 can be used for both telephoto and macro shooting), making the shooting distance range of the optical lens 1 larger and its application range wider.

[0207] ​For example, the optical lens 1 can be further configured such that, during the focusing process of the optical lens 1, the third lens group G3 and the fifth lens group G5 move along the optical axis. In this case, since the third lens group G3 and the fifth lens group G5 can be moved to zoom the optical lens 1, the driving components for the third lens group G3 and the fifth lens group G5 can be reused during focusing. That is, the driving components during zooming and focusing can be the same, which simplifies the setting of the driving structure of the optical lens 1 and also facilitates the miniaturization design of the optical lens 1.

[0208] In some embodiments, the camera module 30 may also have image stabilization.

[0209] For example, the photosensitive element 2 is configured such that during the image stabilization process of the camera module 30, the photosensitive element 2 moves along a direction perpendicular to the optical axis of the photosensitive element 2. The photosensitive element 2 can be driven by an image stabilization motor to achieve image stabilization; this embodiment does not strictly limit the structure by which the photosensitive element 2 achieves image stabilization.

[0210] At this time, by moving the photosensitive element 2, the light incident on the photosensitive element 2 can be kept relatively stable with the photosensitive element 2, thereby reducing image jitter and improving the image quality of the camera module 30.

[0211] For example, during the image stabilization process of the camera module 30, the photosensitive element 2 can also rotate around its optical axis to achieve image stabilization.

[0212] In other examples, the camera module 30 can also achieve image stabilization by driving the optical path switching element 5 to move. For example, the optical path switching element 5 can rotate about the optical axis of its incident light (also called head-shaking), or rotate about the direction perpendicular to its incident and outgoing light (also called head-nodding). This embodiment does not strictly limit the image stabilization method of the optical path switching element 5.

[0213] In some embodiments, please refer to Figure 5 The optical lens 1 may also include an optical path reflecting element 6, which is located on the image side of the fifth lens group G5. The optical path reflecting element 6 is used to change the optical axis direction of the fifth lens group G5 to a third direction, and the third direction has an angle with the optical axis direction of the fifth lens group G5.

[0214] For example, the third direction can be parallel to the optical axis of the first lens group G1. The optical path reflecting element 6 can have an incident surface 61, a reflecting surface 62, and an exit surface 63. The incident surface 61 can be perpendicular to the optical axis of the third lens group G3, and the exit surface 63 is perpendicular to the third direction (i.e., the exit surface 63 is perpendicular to the optical axis of the first lens group G1). The exit surface 63 and the first lens group G1 are located on the same side of the optical axis of the third lens group G3.

[0215] In the optical axis direction of the first lens group G1, the highest point of the optical lens 1 is easily affected by the first lens group G1 or the second lens group G2. At this time, the light is emitted from the exit surface 63 of the optical path reflecting element 6 in the third direction. Since the exit surface 63 and the first lens group G1 are located on the same side of the optical axis of the third lens group G3, the imaging surface is also located on the same side of the optical axis of the third lens group G3 as the first lens group G1. This is equivalent to reusing the height space occupied by the first lens group G1 in its optical axis direction, so there is no need to reserve additional space for the imaging surface and the photosensitive element 2. This is beneficial for the position setting of the photosensitive element, which helps to reduce the height of the optical lens 1 in the third direction and facilitates miniaturization design.

[0216] In this embodiment, by setting the optical path reflection element 6, the optical path can be folded to reduce the total optical length (TTL) of the optical lens 1, thereby facilitating the miniaturization of the optical lens 1; in addition, the optical path reflection element 6 can also facilitate the setting of the position of the imaging surface, thereby facilitating the setting of the position of the photosensitive element 2 in the camera module 30, and also facilitating the setting of a larger photosensitive element 2, thereby resulting in higher imaging quality.

[0217] Understandably, in the camera module 30, the photosensitive element 2 can be perpendicular to a third direction for better imaging. At this time, the light beam is emitted by the optical path reflecting element 6 of the optical lens 1 and received by the photosensitive element 2, thereby forming an image.

[0218] In some other embodiments, the third direction may form an angle with both the optical axis of the fifth lens group G5 and the optical axis of the first lens group G1. In this case, the photosensitive element 2 is perpendicular to the third direction, and the photosensitive element 2 is equivalent to being tilted. This embodiment does not strictly limit the structure of the optical path reflecting element 6.

[0219] The following will combine four examples. Figures 6 to 17c This application provides some specific, but not limiting, examples that will be described in more detail.

[0220] Example 1

[0221] Please refer to Tables 1a, 1b, and 1c, where Table 1a is... Figure 4The optical lens 1 of the camera module 30 shown is configured in one possible embodiment with values ​​for the radius of curvature (R), spacing (D), refractive index (at a wavelength of 587.56 nm), Abbe number, half-aperture, and cone factor (k) of each lens and reflector when in the first shooting mode and the second shooting mode. Specifically, when the camera module 30 is in the first shooting mode, parameters of surfaces 1a to 20 are shown. When the camera module 30 is in the second shooting mode, only parameters of surfaces 1b to 4b are shown; it is understood that when the camera is in the second shooting mode, the parameters of surfaces 5 to 20 can be referenced from the parameters of the first shooting mode and will not be repeated. The spacing includes the thickness of the structure itself and the distance between structures. Tables 1b and 1c are... Figure 4 The aspherical coefficients of each lens in one possible embodiment of the optical lens 1 of the camera module 30 shown.

[0222] Table 1a

[0223]

[0224]

[0225] Table 1b

[0226]

[0227] Table 1c

[0228]

[0229]

[0230] The aspherical surfaces in optical lens 1 in Tables 1a, 1b and 1c can be defined using, but not limited to, the following aspherical curve equations:

[0231]

[0232] Where z is a point on the aspherical surface at a distance r from the optical axis, and its relative distance to the tangent plane at the intersection point on the optical axis; r is the perpendicular distance between a point on the aspherical curve and the optical axis; c is the curvature; k is the conic coefficient; αi is the i-th order aspherical coefficient, which can be found in Tables 1b and 1c. The first lens L1, second lens L2, third lens L3, fourth lens L4, fifth lens L5, sixth lens L6, seventh lens L7, eighth lens L8, and ninth lens L9 are all aspherical lenses.

[0233] Please refer to Table 1d, which is... Figure 4The basic parameters of the camera module 30 shown in one possible embodiment are as follows: In Table 1d, F.no is the aperture value, 1 MH is the half-image height, TTL is the total optical length of the optical lens 1, SK1 is the distance moved by the third lens group G3 during the switching of the optical lens 1 from the first shooting mode to the second shooting mode, SK2 is the distance moved by the fifth lens group G5 during the switching of the optical lens 1 from the first shooting mode to the second shooting mode, f1 is the focal length of the first lens group G1, f2 is the focal length of the second lens group G2, f3 is the focal length of the third lens group G3, f4 is the focal length of the fourth lens group G4, f5 is the focal length of the fifth lens group G5, F1 is the focal length of the optical lens 1 in the first shooting mode, F2 is the focal length of the optical lens 1 in the second shooting mode, P is the distance moved by the optical path switching element 5 during the switching of the optical lens 1 from the first shooting mode to the second shooting mode, and a is the first distance between the optical path switching element 5 and the third lens group G3 in the second shooting mode. Among them, the values ​​of f1, f2, f3, f4, f5, F1, and F2 are all valid values.

[0234] Table 1d

[0235]

[0236] Among them, F.no has two values: the first value is the value when optical lens 1 is in the first shooting mode, and the second value is the value when optical lens 1 is in the second shooting mode.

[0237] Please see Figure 6 , Figure 6 yes Figure 5 The diagram shows the structure of the camera module 30 in some embodiments, in a first shooting mode and a second shooting mode.

[0238] In this embodiment, the optical lens 1 includes a first lens group G1, a second lens group G2, a third lens group G3, a fourth lens group G4, a fifth lens group G5, and an optical path switching element 5. The third lens group G3, the fourth lens group G4, and the fifth lens group G5 can be arranged sequentially along the direction from the object side to the image side.

[0239] When the optical lens 1 is in the first shooting mode, the optical path switching element 5 is located on the image side of the first lens group G1 and on the object side of the third lens group G3, and the optical lens 1 has a first focal length.

[0240] When the optical lens 1 is in the second shooting mode, the optical path switching element 5 is located on the image side of the second lens group G2 and on the object side of the third lens group G3, and the optical lens 1 has a second focal length.

[0241] During the process of switching from the first shooting mode to the second shooting mode, the third lens group G3 and the fifth lens group G5 move in the same direction along the optical axis of the third lens group G3, and the optical lens 1 switches from the first focal length to the second focal length.

[0242] The first lens group G1 comprises one lens, namely the first lens L1. The optical power of the first lens group G1 is positive. The second lens group G2 comprises one lens, namely the second lens L2. The optical power of the second lens group G2 is positive. The third lens group G3 comprises two lenses, namely the third lens L3 and the fourth lens L4, wherein the third lens L3 and the fourth lens L4 are arranged along the direction from the object side to the image side, and the two can be fixed relative to each other. The fourth lens group G4 comprises three lenses, namely the fifth lens L5, the sixth lens L6, and the seventh lens L7, wherein the fifth lens L5, the sixth lens L6, and the seventh lens L7 are arranged along the direction from the object side to the image side, and the three can be fixed relative to each other. The fifth lens group G5 comprises two lenses, namely the eighth lens L8 and the ninth lens L9, wherein the eighth lens L8 and the ninth lens L9 are arranged along the direction from the object side to the image side, and the two can be fixed relative to each other.

[0243] The optical path switching element 5 can be a prism. The optical path switching element 5 has an incident surface, a reflecting surface, and an exiting surface. The incident surface can be perpendicular to the optical axis of the first lens group G1, and the exiting surface can face the third lens group G3 and be perpendicular to the optical axis of the third lens group G3. The incident surface and the exiting surface can be perpendicular, and the reflecting surface can have an angle with the incident surface and the exiting surface.

[0244] In this design, the first lens group G1, the second lens group G2, and the fourth lens group G4 can be fixed components. The third lens group G3, the fifth lens group G5, and the optical path switching element 5 can be movable components, and their movement direction can be parallel to the optical axis of the third lens group G3. The optical path switching element 5 can move to receive light beams from the first lens group G1 and the second lens group G2 respectively, thereby switching the optical lens 1 between the first shooting mode and the second shooting mode. Simultaneously, the third lens group G3 and the fifth lens group G5 move synchronously during the switching process to complete the switching between the first shooting mode and the second shooting mode.

[0245] The optical lens 1 also includes a light path reflecting element 6. Exemplarily, the third direction can be perpendicular to the optical axis of the fifth lens group G5. For example, the light path reflecting element 6 can be a prism, and it can have an incident surface 61, a reflecting surface 62, and an exit surface 63, with the incident surface 61 perpendicular to the exit surface 63. The exit surface 63 of the light path reflecting element 6 is located on the same side of the optical axis of the third lens group G3 as the first lens group G1. The light beam can enter the light path reflecting element 6 through the incident surface 61, be reflected by the reflecting surface 62, and exit the light path reflecting element 6 through the exit surface 63.

[0246] At this time, the light beam can be received and imaged by the photosensitive element 2 after it is emitted from the optical path reflection element 6. Therefore, by controlling the emission direction of the light beam from the optical path reflection element 6, the emission direction of the light beam from the optical lens 1 is also controlled, reducing the influence of the height of the optical lens 1 on the height of the imaging surface. This is beneficial for setting a larger photosensitive element 2, thereby achieving a better imaging effect.

[0247] Additionally, the photosensitive element 2 of the camera module 30 can be perpendicular to a third direction. For example, the photosensitive element 2 can be positioned opposite to the exit surface 63 of the light path reflector 6.

[0248] In this embodiment, the third lens group G3 and the fifth lens group G5 are movable, working in conjunction with the optical path switching element 5 to change the focal length of the optical lens 1. Since the third lens group G3, the fourth lens group G4, and the fifth lens group G5 are arranged sequentially, the third lens group G3 and the fifth lens group G5 are relatively far apart, allowing for ample space on both sides of each group. Therefore, the larger space between the third lens group G3 and the fifth lens group G5 facilitates their design and installation, and also provides them with greater mobility.

[0249] The value of the zoom ratio M is 1.65.

[0250] The value of (|f3 / SK1|+|f5 / SK2|) / M is 6.76.

[0251] The ratio of the focal length f2 of the second lens group G2 to the focal length f1 of the first lens group G1, f2 / f1, is 1.32.

[0252] The ratio of the total optical length TTL zoom ratio M, TTL / M, is 18.18.

[0253] The ratio of the second focal length F2 to the total optical length TTL, F2 / TTL, is 0.94.

[0254] The ratio of the sum of the first focal length F1 and the second focal length F2 to the image height (F1+F2) / IMH is 8.82.

[0255] Among them, the ratio of the negative of the focal length f3 of the third lens group G3 to the second focal length, -f3 / F2, is 0.38.

[0256] Among them, the ratio of the focal length f4 of the fourth lens group G4 to the second focal length, f4 / F2, is 0.26.

[0257] Among them, the ratio of the negative of the focal length f5 of the fifth lens group G5 to the second focal length, -f5 / F2, is 0.39.

[0258] The ratio of the distance P that the optical path switching element 5 moves to the total optical length, P / TTL, is 0.26.

[0259] Please refer to the following: Figures 7a to 7c , Figure 7a yes Figure 6 The diagram shows the axial chromatic aberration curve of the camera module 30 in some embodiments when it is in the first shooting mode. Figure 7b yes Figure 6 The image bokeh curve of the camera module 30 in some embodiments in the first shooting mode is shown. Figure 7c yes Figure 6 The image shown is a distortion diagram of the camera module 30 in a first shooting mode in some embodiments.

[0260] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 7a The values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. X represents the sagittal beam, and Y represents the meridional beam. The horizontal axis represents the deviation along the optical axis, and the vertical axis represents the image height. When a value in a certain field of view is too large, the image quality of that field of view is poor or high-level aberrations exist. Figure 7b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 7c All values ​​shown are within 2.5%, ensuring that there is no obvious distortion in the image.

[0261] Please refer to the following: Figures 8a to 8c , Figure 8a yes Figure 6 The axial chromatic aberration curve of the camera module 30 in some embodiments in the second shooting mode is shown. Figure 8b yes Figure 6 The image bokeh curve of the camera module 30 in some embodiments in the second shooting mode is shown. Figure 8c yes Figure 6 The image shown is a distorted image of the camera module 30 in a second shooting mode in some embodiments.

[0262] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 8a The values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. X represents the sagittal beam, and Y represents the meridional beam. The horizontal axis represents the deviation value along the optical axis, and the vertical axis represents the corresponding field of view. When a value in a certain field of view is too large, the image quality of that field of view is poor or there are advanced aberrations. Figure 8b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 8c All values ​​shown are within 2.5%, ensuring that there is no obvious distortion in the image.

[0263] Example 2

[0264] Please refer to Tables 2a, 2b, and 2c, where Table 2a is... Figure 4 The values ​​of the radius of curvature (R), spacing (D), refractive index (at a wavelength of 587.56 nm), Abbe number, half-aperture, and cone factor (k) of each lens and reflector in another possible embodiment of the camera module 30 in both the first and second shooting modes are shown. Specifically, when the camera module 30 is in the first shooting mode, parameters of facets 1a to 22 are shown. When the camera module 30 is in the second shooting mode, only parameters of facets 1b to 4b are shown; it is understood that when the camera is in the second shooting mode, the parameters of facets 5 to 22 can be referenced from the parameters of the first shooting mode and will not be repeated. The spacing includes the thickness of the structure itself and the distance between structures. Tables 2b and 2c are... Figure 4 The aspherical coefficients of the lenses in another possible embodiment of the camera module 30 shown.

[0265] Table 2a

[0266]

[0267]

[0268] Table 2b

[0269]

[0270]

[0271] Table 2c

[0272]

[0273] The aspherical surfaces in optical lens 1 in Tables 2a, 2b and 2c can be defined using, but not limited to, the following aspherical curve equations:

[0274]

[0275] Where z is a point on the aspherical surface at a distance r from the optical axis, and its relative distance to the tangent plane at the intersection point on the optical axis; r is the perpendicular distance between a point on the aspherical curve and the optical axis; c is the curvature; k is the conic coefficient; αi is the i-th order aspherical coefficient, which can be found in Tables 2b and 2c. The first lens L1, second lens L2, third lens L3, fourth lens L4, fifth lens L5, sixth lens L6, seventh lens L7, eighth lens L8, and ninth lens L9 are all aspherical lenses.

[0276] Please refer to Table 2d, which is... Figure 4 The basic parameters of the camera module 30 shown in another possible embodiment are as follows: In Table 2d, F.no is the aperture value, 1 MH is the half-image height, TTL is the total optical length of the optical lens 1, SK1 is the distance moved by the third lens group G3 during the switching of the optical lens 1 from the first shooting mode to the second shooting mode, SK2 is the distance moved by the fifth lens group G5 during the switching of the optical lens 1 from the first shooting mode to the second shooting mode, f1 is the focal length of the first lens group G1, f2 is the focal length of the second lens group G2, f3 is the focal length of the third lens group G3, f4 is the focal length of the fourth lens group G4, f5 is the focal length of the fifth lens group G5, F1 is the focal length of the optical lens 1 in the first shooting mode, F2 is the focal length of the optical lens 1 in the second shooting mode, P is the distance moved by the optical path switching element 5 during the switching of the optical lens 1 from the first shooting mode to the second shooting mode, and a is the first distance between the optical path switching element 5 and the third lens group G3 in the second shooting mode. Among them, the values ​​of f1, f2, f3, f4, f5, F1, and F2 are all valid values.

[0277] Table 2d

[0278]

[0279] Among them, F.no has two values: the first value is the value when optical lens 1 is in the first shooting mode, and the second value is the value when optical lens 1 is in the second shooting mode.

[0280] Please see Figure 9 , Figure 9 yes Figure 4 The diagram shows the structure of the camera module 30 in a first shooting mode and a second shooting mode in some other embodiments.

[0281] In this embodiment, the optical lens 1 includes a first lens group G1, a second lens group G2, a third lens group G3, a fourth lens group G4, a fifth lens group G5, and an optical path switching element 5. The third lens group G3, the fourth lens group G4, and the fifth lens group G5 can be arranged sequentially along the direction from the object side to the image side.

[0282] When the optical lens 1 is in the first shooting mode, the optical path switching element 5 is located on the image side of the first lens group G1 and on the object side of the third lens group G3, and the optical lens 1 has a first focal length.

[0283] When the optical lens 1 is in the second shooting mode, the optical path switching element 5 is located on the image side of the second lens group G2 and on the object side of the third lens group G3, and the optical lens 1 has a second focal length.

[0284] During the process of switching from the first shooting mode to the second shooting mode, the third lens group G3 and the fifth lens group G5 move in the same direction along the optical axis of the third lens group G3, and the optical lens 1 switches from the first focal length to the second focal length.

[0285] The first lens group G1 comprises one lens, namely the first lens L1. The optical power of the first lens group G1 is positive. The second lens group G2 comprises one lens, namely the second lens L2. The optical power of the second lens group G2 is positive. The third lens group G3 comprises two lenses, namely the third lens L3 and the fourth lens L4, wherein the third lens L3 and the fourth lens L4 are arranged along the direction from the object side to the image side, and the two can be fixed relative to each other. The fourth lens group G4 comprises three lenses, namely the fifth lens L5, the sixth lens L6, and the seventh lens L7, wherein the fifth lens L5, the sixth lens L6, and the seventh lens L7 are arranged along the direction from the object side to the image side, and the three can be fixed relative to each other. The fifth lens group G5 comprises two lenses, namely the eighth lens L8 and the ninth lens L9, wherein the eighth lens L8 and the ninth lens L9 are arranged along the direction from the object side to the image side, and the two can be fixed relative to each other.

[0286] The optical path switching element 5 can be a prism. The optical path switching element 5 has an incident surface, a reflecting surface, and an exiting surface. The incident surface can be perpendicular to the optical axis of the first lens group G1, and the exiting surface can face the third lens group G3 and be perpendicular to the optical axis of the third lens group G3. The incident surface and the exiting surface can be perpendicular, and the reflecting surface can have an angle with the incident surface and the exiting surface.

[0287] In this design, the first lens group G1, the second lens group G2, and the fourth lens group G4 can be fixed components. The third lens group G3, the fifth lens group G5, and the optical path switching element 5 can be movable components, and their movement direction can be parallel to the optical axis of the third lens group G3. The optical path switching element 5 can move to receive light beams from the first lens group G1 and the second lens group G2 respectively, thereby switching the optical lens 1 between the first shooting mode and the second shooting mode. Simultaneously, the third lens group G3 and the fifth lens group G5 move synchronously during the switching process to complete the switching between the first shooting mode and the second shooting mode.

[0288] The optical lens 1 also includes a light path reflecting element 6. Exemplarily, the third direction can be perpendicular to the optical axis of the fifth lens group G5. For example, the light path reflecting element 6 can be a prism, and it can have an incident surface 61, a reflecting surface 62, and an exit surface 63, with the incident surface 61 perpendicular to the exit surface 63. The exit surface 63 of the light path reflecting element 6 is located on the same side of the optical axis of the third lens group G3 as the first lens group G1. The light beam can enter the light path reflecting element 6 through the incident surface 61, be reflected by the reflecting surface 62, and exit the light path reflecting element 6 through the exit surface 63.

[0289] At this time, the light beam can be received and imaged by the photosensitive element 2 after it is emitted from the optical path reflection element 6. Therefore, by controlling the emission direction of the light beam from the optical path reflection element 6, the emission direction of the light beam from the optical lens 1 is also controlled, reducing the influence of the height of the optical lens 1 on the height of the imaging surface. This is beneficial for setting a larger photosensitive element 2, thereby achieving a better imaging effect.

[0290] Additionally, the photosensitive element 2 of the camera module 30 can be perpendicular to a third direction. For example, the photosensitive element 2 can be positioned opposite to the exit surface 63 of the light path reflector 6.

[0291] In this embodiment, the third lens group G3 and the fifth lens group G5 are movable, working in conjunction with the optical path switching element 5 to change the focal length of the optical lens 1. Since the third lens group G3, the fourth lens group G4, and the fifth lens group G5 are arranged sequentially, the third lens group G3 and the fifth lens group G5 are relatively far apart, allowing for ample space on both sides of each group. Therefore, the larger space between the third lens group G3 and the fifth lens group G5 facilitates their design and installation, and also provides them with greater mobility.

[0292] The value of the zoom ratio M is 1.65.

[0293] The value of (|f3 / SK1|+|f5 / SK2|) / M is 14.37.

[0294] The ratio of the focal length f2 of the second lens group G2 to the focal length f1 of the first lens group G1, f2 / f1, is 1.48.

[0295] The ratio of the total optical length TTL zoom ratio M, TTL / M, is 19.12.

[0296] The ratio of the second focal length F2 to the total optical length TTL, F2 / TTL, is 0.89.

[0297] The ratio of the sum of the first focal length F1 and the second focal length F2 to the image height (F1+F2) / IMH is 8.2.

[0298] Among them, the ratio of the negative of the focal length f3 of the third lens group G3 to the second focal length, -f3 / F2, is 0.34.

[0299] Among them, the ratio of the focal length f4 of the fourth lens group G4 to the second focal length, f4 / F2, is 0.25.

[0300] Among them, the ratio of the negative of the focal length f5 of the fifth lens group G5 to the second focal length, -f5 / F2, is 0.39.

[0301] The ratio of the distance P that the optical path switching element 5 moves to the total optical length, P / TTL, is 0.29.

[0302] Please refer to the following: Figures 10a to 10c , Figure 10a yes Figure 9 The diagram shows the axial chromatic aberration curve of the camera module 30 in some embodiments when it is in the first shooting mode. Figure 10b yes Figure 9 The image bokeh curve of the camera module 30 in some embodiments in the first shooting mode is shown. Figure 10c yes Figure 9 The image shown is a distortion diagram of the camera module 30 in a first shooting mode in some embodiments.

[0303] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 10a The values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. S represents the sagittal beam, and T represents the meridional beam. The horizontal axis represents the deviation along the optical axis, and the vertical axis represents the image height. When a value in a certain field of view is too large, the image quality of that field of view is poor or high-level aberrations exist. Figure 10b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 10c All values ​​shown are within 2.5%, ensuring that there is no obvious distortion in the image.

[0304] Please refer to the following: Figures 11a to 11c , Figure 11a yes Figure 9 The image shows the axial chromatic aberration curve of the camera module 30 in some embodiments when it is in the second shooting mode. Figure 11b yes Figure 9 The image bokeh curve of the camera module 30 in some embodiments in the second shooting mode is shown. Figure 11c yes Figure 9 The image shown is a distorted image of the camera module 30 in a second shooting mode in some embodiments.

[0305] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 11aThe values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. X represents the sagittal beam, and Y represents the meridional beam. The horizontal axis represents the deviation value along the optical axis, and the vertical axis represents the corresponding field of view. When a value in a certain field of view is too large, the image quality of that field of view is poor or there are advanced aberrations. Figure 11b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 11c All values ​​shown are within 2.5%, ensuring that there is no obvious distortion in the image.

[0306] Example 3

[0307] Please refer to Tables 3a, 3b, and 3c, where Table 3a is... Figure 4 The values ​​of the radius of curvature (R), spacing (D), refractive index (at a wavelength of 587.56 nm), Abbe number, half-aperture, and cone factor (k) of each lens and reflector in another possible embodiment of the camera module 30 in both the first and second shooting modes are shown. Specifically, when the camera module 30 is in the first shooting mode, parameters of facets 1a to 22 are shown. When the camera module 30 is in the second shooting mode, only parameters of facets 1b to 4b are shown; it is understood that when the camera is in the second shooting mode, the parameters of facets 5 to 22 can be referenced from the parameters of the first shooting mode and will not be repeated. The spacing includes the thickness of the structure itself and the distance between structures. Tables 3b and 3c are... Figure 4 The aspherical coefficients of the lenses in another possible embodiment of the camera module 30 shown.

[0308] Table 3a

[0309]

[0310] Table 3b

[0311]

[0312]

[0313] Table 3c

[0314]

[0315]

[0316] The aspherical surfaces in optical lens 1 in Tables 3a, 3b and 3c can be defined using, but not limited to, the following aspherical curve equations:

[0317]

[0318] Where z is a point on the aspherical surface at a distance r from the optical axis, and its relative distance to the tangent plane at the intersection point on the optical axis of the aspherical surface; r is the perpendicular distance between a point on the aspherical curve and the optical axis; c is the curvature; k is the conic coefficient; αi is the i-th order aspherical coefficient, which can be found in Tables 3b and 3c. The first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, the sixth lens L6, the seventh lens L7, the eighth lens L8, and the ninth lens L9 are all aspherical lenses.

[0319] Please refer to Table 3d, Table 3d is Figure 4 The basic parameters of the camera module 30 shown in another possible embodiment are as follows. In Table 3d, F.no is the aperture value, 1 MH is the half-image height, TTL is the total optical length of the optical lens 1, SK1 is the distance moved by the third lens group G3 during the process of switching the optical lens 1 from the first shooting mode to the second shooting mode, SK2 is the distance moved by the fifth lens group G5 during the process of switching the optical lens 1 from the first shooting mode to the second shooting mode, f1 is the focal length of the first lens group G1, f2 is the focal length of the second lens group G2, f3 is the focal length of the third lens group G3, f4 is the focal length of the fourth lens group G4, f5 is the focal length of the fifth lens group G5, F1 is the focal length of the optical lens 1 in the first shooting mode, F2 is the focal length of the optical lens 1 in the second shooting mode, P is the distance moved by the optical path switching element 5 during the process of switching the optical lens 1 from the first shooting mode to the second shooting mode, and a is the first distance between the optical path switching element 5 and the third lens group G3 in the second shooting mode. Among them, the values ​​of f1, f2, f3, f4, f5, F1, and F2 are all valid values.

[0320] Table 3d

[0321]

[0322] Among them, F.no has two values: the first value is the value when optical lens 1 is in the first shooting mode, and the second value is the value when optical lens 1 is in the second shooting mode.

[0323] Please see Figure 12 , Figure 12 yes Figure 4 The diagram shows the structure of the camera module 30 in a first shooting mode and a second shooting mode in some other embodiments.

[0324] In this embodiment, the optical lens 1 includes a first lens group G1, a second lens group G2, a third lens group G3, a fourth lens group G4, a fifth lens group G5, and an optical path switching element 5. The third lens group G3, the fourth lens group G4, and the fifth lens group G5 can be arranged sequentially along the direction from the object side to the image side.

[0325] When the optical lens 1 is in the first shooting mode, the optical path switching element 5 is located on the image side of the first lens group G1 and on the object side of the third lens group G3, and the optical lens 1 has a first focal length.

[0326] When the optical lens 1 is in the second shooting mode, the optical path switching element 5 is located on the image side of the second lens group G2 and on the object side of the third lens group G3, and the optical lens 1 has a second focal length.

[0327] During the process of switching from the first shooting mode to the second shooting mode, the third lens group G3 and the fifth lens group G5 move in the same direction along the optical axis of the third lens group G3, and the optical lens 1 switches from the first focal length to the second focal length.

[0328] The first lens group G1 comprises one lens, namely the first lens L1. The optical power of the first lens group G1 is positive. The second lens group G2 comprises one lens, namely the second lens L2. The optical power of the second lens group G2 is positive. The third lens group G3 comprises two lenses, namely the third lens L3 and the fourth lens L4, wherein the third lens L3 and the fourth lens L4 are arranged along the direction from the object side to the image side, and the two can be fixed relative to each other. The fourth lens group G4 comprises three lenses, namely the fifth lens L5, the sixth lens L6, and the seventh lens L7, wherein the fifth lens L5, the sixth lens L6, and the seventh lens L7 are arranged along the direction from the object side to the image side, and the three can be fixed relative to each other. The fifth lens group G5 comprises two lenses, namely the eighth lens L8 and the ninth lens L9, wherein the eighth lens L8 and the ninth lens L9 are arranged along the direction from the object side to the image side, and the two can be fixed relative to each other.

[0329] The optical path switching element 5 can be a prism. The optical path switching element 5 has an incident surface, a reflecting surface, and an exiting surface. The incident surface can be perpendicular to the optical axis of the first lens group G1, and the exiting surface can face the third lens group G3 and be perpendicular to the optical axis of the third lens group G3. The incident surface and the exiting surface can be perpendicular, and the reflecting surface can have an angle with the incident surface and the exiting surface.

[0330] In this design, the first lens group G1, the second lens group G2, and the fourth lens group G4 can be fixed components. The third lens group G3, the fifth lens group G5, and the optical path switching element 5 can be movable components, and their movement direction can be parallel to the optical axis of the third lens group G3. The optical path switching element 5 can move to receive light beams from the first lens group G1 and the second lens group G2 respectively, thereby switching the optical lens 1 between the first shooting mode and the second shooting mode. Simultaneously, the third lens group G3 and the fifth lens group G5 move synchronously during the switching process to complete the switching between the first shooting mode and the second shooting mode.

[0331] The optical lens 1 also includes a light path reflecting element 6. Exemplarily, the third direction can be perpendicular to the optical axis of the fifth lens group G5. For example, the light path reflecting element 6 can be a prism, and it can have an incident surface 61, a reflecting surface 62, and an exit surface 63, with the incident surface 61 perpendicular to the exit surface 63. The exit surface 63 of the light path reflecting element 6 is located on opposite sides of the optical axis of the third lens group G3 from the first lens group G1. The light beam can enter the light path reflecting element 6 through the incident surface 61, be reflected by the reflecting surface 62, and exit the light path reflecting element 6 through the exit surface 63.

[0332] At this time, the light beam can be received and imaged by the photosensitive element 2 after it is emitted from the optical path reflection element 6. Therefore, by controlling the emission direction of the light beam from the optical path reflection element 6, the emission direction of the light beam from the optical lens 1 is also controlled, reducing the influence of the height of the optical lens 1 on the height of the imaging surface. This is beneficial for setting a larger photosensitive element 2, thereby achieving a better imaging effect.

[0333] Additionally, the photosensitive element 2 of the camera module 30 can be perpendicular to a third direction. For example, the photosensitive element 2 can be positioned opposite to the exit surface 63 of the light path reflector 6.

[0334] In this embodiment, the third lens group G3 and the fifth lens group G5 are movable, working in conjunction with the optical path switching element 5 to change the focal length of the optical lens 1. Since the third lens group G3, the fourth lens group G4, and the fifth lens group G5 are arranged sequentially, the third lens group G3 and the fifth lens group G5 are relatively far apart, allowing for ample space on both sides of each group. Therefore, the larger space between the third lens group G3 and the fifth lens group G5 facilitates their design and installation, and also provides them with greater mobility.

[0335] The value of the zoom ratio M is 1.65.

[0336] The value of (|f3 / SK1|+|f5 / SK2|) / M is 10.08.

[0337] The ratio of the focal length f2 of the second lens group G2 to the focal length f1 of the first lens group G1, f2 / f1, is 1.44.

[0338] The ratio of the total optical length TTL zoom ratio M, TTL / M, is 19.09.

[0339] The ratio of the second focal length F2 to the total optical length TTL, F2 / TTL, is 0.89.

[0340] The ratio of the sum of the first focal length F1 and the second focal length F2 to the image height (F1+F2) / IMH is 8.18.

[0341] Among them, the ratio of the negative of the focal length f3 of the third lens group G3 to the second focal length, -f3 / F2, is 0.32.

[0342] Among them, the ratio of the focal length f4 of the fourth lens group G4 to the second focal length, f4 / F2, is 0.24.

[0343] Among them, the ratio of the negative of the focal length f5 of the fifth lens group G5 to the second focal length, -f5 / F2, is 0.37.

[0344] The ratio of the distance P that the optical path switching element 5 moves to the total optical length, P / TTL, is 0.24.

[0345] Please refer to the following: Figures 13a to 13c , Figure 13a yes Figure 12 The diagram shows the axial chromatic aberration curve of the camera module 30 in some embodiments when it is in the first shooting mode. Figure 13b yes Figure 12 The image bokeh curve of the camera module 30 in some embodiments in the first shooting mode is shown. Figure 13c yes Figure 12 The image shown is a distortion diagram of the camera module 30 in a first shooting mode in some embodiments.

[0346] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 13aThe values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. S represents the sagittal beam, and T represents the meridional beam. The horizontal axis represents the deviation along the optical axis, and the vertical axis represents the image height. When a value in a certain field of view is too large, the image quality of that field of view is poor or high-level aberrations exist. Figure 13b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 13c All values ​​shown are within 0.5%, ensuring that there is no obvious distortion in the image.

[0347] Please refer to the following: Figures 14a to 14c , Figure 14a yes Figure 12 The axial chromatic aberration curve of the camera module 30 in some embodiments in the second shooting mode is shown. Figure 14b yes Figure 12 The image bokeh curve of the camera module 30 in some embodiments in the second shooting mode is shown. Figure 14c yes Figure 12 The image shown is a distorted image of the camera module 30 in a second shooting mode in some embodiments.

[0348] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 14a The values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. X represents the sagittal beam, and Y represents the meridional beam. The horizontal axis represents the deviation value along the optical axis, and the vertical axis represents the corresponding field of view. When a value in a certain field of view is too large, the image quality of that field of view is poor or there are advanced aberrations. Figure 14b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 14c All values ​​shown are within 2.5%, ensuring that there is no obvious distortion in the image.

[0349] Example 4

[0350] Please refer to Tables 4a, 4b, and 4c, among which Table 4a is... Figure 4The values ​​of the radius of curvature (R), spacing (D), refractive index (at a wavelength of 587.56 nm), Abbe number, half-aperture, and cone factor (k) of each lens and reflector in the camera module 30 shown in another possible embodiment, when in the first shooting mode and the second shooting mode, are given. Specifically, when the camera module 30 is in the first shooting mode, parameters of facets 1a to 22 are shown. When the camera module 30 is in the second shooting mode, only parameters of facets 1b to 4b are shown; it is understood that when the camera is in the second shooting mode, the parameters of facets 5 to 22 can be referenced from the parameters of the first shooting mode and will not be repeated. The spacing includes the thickness of the structure itself and the distance between structures. Tables 4b and 4c are... Figure 4 The aspherical coefficients of the lenses in another possible embodiment of the camera module 30 shown.

[0351] Table 4a

[0352]

[0353]

[0354] Table 4b

[0355]

[0356] Table 4c

[0357]

[0358]

[0359] The aspherical surfaces in optical lens 1 in Tables 4a, 4b and 4c can be defined using, but are not limited to, the following aspherical curve equations:

[0360]

[0361] Where z is a point on the aspherical surface at a distance r from the optical axis, and its relative distance to the tangent plane at the intersection point on the optical axis; r is the perpendicular distance between a point on the aspherical curve and the optical axis; c is the curvature; k is the conic coefficient; αi is the i-th order aspherical coefficient, which can be found in Tables 4b and 4c. The first lens L1, second lens L2, third lens L3, fourth lens L4, fifth lens L5, sixth lens L6, seventh lens L7, eighth lens L8, ninth lens L9, and tenth lens L10 are all aspherical lenses.

[0362] Please refer to Table 4d, which is... Figure 4The basic parameters of the camera module 30 shown in another possible embodiment are as follows. In Table 4d, F.no is the aperture value, 1 MH is the half-image height, TTL is the total optical length of the optical lens 1, SK1 is the distance moved by the third lens group G3 during the process of switching the optical lens 1 from the first shooting mode to the second shooting mode, SK2 is the distance moved by the fifth lens group G5 during the process of switching the optical lens 1 from the first shooting mode to the second shooting mode, f1 is the focal length of the first lens group G1, f2 is the focal length of the second lens group G2, f3 is the focal length of the third lens group G3, f4 is the focal length of the fourth lens group G4, f5 is the focal length of the fifth lens group G5, F1 is the focal length of the optical lens 1 in the first shooting mode, F2 is the focal length of the optical lens 1 in the second shooting mode, P is the distance moved by the optical path switching element 5 during the process of switching the optical lens 1 from the first shooting mode to the second shooting mode, and a is the first distance between the optical path switching element 5 and the third lens group G3 in the second shooting mode. Among them, the values ​​of f1, f2, f3, f4, f5, F1, and F2 are all valid values.

[0363] Table 4d

[0364]

[0365] Among them, F.no has two values: the first value is the value when optical lens 1 is in the first shooting mode, and the second value is the value when optical lens 1 is in the second shooting mode.

[0366] Please see Figure 15 , Figure 15 yes Figure 4 The diagram shows the structure of the camera module 30 in a first shooting mode and a second shooting mode in some embodiments.

[0367] In this embodiment, the optical lens 1 includes a first lens group G1, a second lens group G2, a third lens group G3, a fourth lens group G4, a fifth lens group G5, and an optical path switching element 5. The third lens group G3, the fourth lens group G4, and the fifth lens group G5 can be arranged sequentially along the direction from the object side to the image side.

[0368] When the optical lens 1 is in the first shooting mode, the optical path switching element 5 is located on the image side of the first lens group G1 and on the object side of the third lens group G3, and the optical lens 1 has a first focal length.

[0369] When the optical lens 1 is in the second shooting mode, the optical path switching element 5 is located on the image side of the second lens group G2 and on the object side of the third lens group G3, and the optical lens 1 has a second focal length.

[0370] During the process of switching from the first shooting mode to the second shooting mode, the third lens group G3 and the fifth lens group G5 move in the same direction along the optical axis of the third lens group G3, and the optical lens 1 switches from the first focal length to the second focal length.

[0371] The first lens group G1 comprises one lens, namely the first lens L1. The optical power of the first lens group G1 is positive. The second lens group G2 comprises one lens, namely the second lens L2. The optical power of the second lens group G2 is positive. The third lens group G3 comprises three lenses, namely the third lens L3, the fourth lens L4, and the fifth lens L5, wherein the third lens L3, the fourth lens L4, and the fifth lens L5 are arranged along the direction from the object side to the image side, and the three can be relatively fixed. The fourth lens group G4 comprises three lenses, namely the sixth lens L6, the seventh lens L7, and the eighth lens L8, wherein the sixth lens L6, the seventh lens L7, and the eighth lens L8 are arranged along the direction from the object side to the image side, and the three can be relatively fixed. The fifth lens group G5 comprises two lenses, namely the ninth lens L9 and the tenth lens L10, wherein the ninth lens L9 and the tenth lens L10 are arranged along the direction from the object side to the image side, and the two can be relatively fixed.

[0372] The optical path switching element 5 can be a prism. The optical path switching element 5 has an incident surface, a reflecting surface, and an exiting surface. The incident surface can be perpendicular to the optical axis of the first lens group G1, and the exiting surface can face the third lens group G3 and be perpendicular to the optical axis of the third lens group G3. The incident surface and the exiting surface can be perpendicular, and the reflecting surface can have an angle with the incident surface and the exiting surface.

[0373] In this design, the first lens group G1, the second lens group G2, and the fourth lens group G4 can be fixed components. The third lens group G3, the fifth lens group G5, and the optical path switching element 5 can be movable components, and their movement direction can be parallel to the optical axis of the third lens group G3. The optical path switching element 5 can move to receive light beams from the first lens group G1 and the second lens group G2 respectively, thereby switching the optical lens 1 between the first shooting mode and the second shooting mode. Simultaneously, the third lens group G3 and the fifth lens group G5 move synchronously during the switching process to complete the switching between the first shooting mode and the second shooting mode.

[0374] The optical lens 1 also includes a light path reflecting element 6. Exemplarily, the third direction can be perpendicular to the optical axis of the fifth lens group G5. For example, the light path reflecting element 6 can be a prism, and it can have an incident surface 61, a reflecting surface 62, and an exit surface 63, with the incident surface 61 perpendicular to the exit surface 63. The exit surface 63 of the light path reflecting element 6 is located on the same side of the optical axis of the third lens group G3 as the first lens group G1. The light beam can enter the light path reflecting element 6 through the incident surface 61, be reflected by the reflecting surface 62, and exit the light path reflecting element 6 through the exit surface 63.

[0375] At this time, the light beam can be received and imaged by the photosensitive element 2 after it is emitted from the optical path reflection element 6. Therefore, by controlling the emission direction of the light beam from the optical path reflection element 6, the emission direction of the light beam from the optical lens 1 is also controlled, reducing the influence of the height of the optical lens 1 on the height of the imaging surface. This is beneficial for setting a larger photosensitive element 2, thereby achieving a better imaging effect.

[0376] Additionally, the photosensitive element 2 of the camera module 30 can be perpendicular to a third direction. For example, the photosensitive element 2 can be positioned opposite to the exit surface 63 of the light path reflector 6.

[0377] In this embodiment, the third lens group G3 and the fifth lens group G5 are movable, working in conjunction with the optical path switching element 5 to change the focal length of the optical lens 1. Since the third lens group G3, the fourth lens group G4, and the fifth lens group G5 are arranged sequentially, the third lens group G3 and the fifth lens group G5 are relatively far apart, allowing for ample space on both sides of each group. Therefore, the larger space between the third lens group G3 and the fifth lens group G5 facilitates their design and installation, and also provides them with greater mobility.

[0378] The value of the zoom ratio M is 1.79.

[0379] The value of (|f3 / SK1|+|f5 / SK2|) / M is 7.13.

[0380] The ratio of the focal length f2 of the second lens group G2 to the focal length f1 of the first lens group G1, f2 / f1, is 1.45.

[0381] The ratio of the total optical length TTL zoom ratio M, TTL / M, is 16.79.

[0382] The ratio of the second focal length F2 to the total optical length TTL, F2 / TTL, is 0.98.

[0383] The ratio of the sum of the first focal length F1 and the second focal length F2 to the image height (F1+F2) / I MH is 8.98.

[0384] Among them, the ratio of the negative of the focal length f3 of the third lens group G3 to the second focal length, -f3 / F2, is 0.36.

[0385] Among them, the ratio of the focal length f4 of the fourth lens group G4 to the second focal length, f4 / F2, is 0.24.

[0386] Among them, the ratio of the negative of the focal length f5 of the fifth lens group G5 to the second focal length, -f5 / F2, is 0.35.

[0387] The ratio of the distance P that the optical path switching element 5 moves to the total optical length, P / TTL, is 0.29.

[0388] Please refer to the following: Figures 16a to 16c , Figure 16a yes Figure 15 The axial chromatic aberration curve of the camera module 30 in some embodiments in the first shooting mode is shown. Figure 16b yes Figure 15 The image bokeh curve of the camera module 30 in some embodiments in the first shooting mode is shown. Figure 16c yes Figure 15 The image shown is a distortion diagram of the camera module 30 in a first shooting mode in some embodiments.

[0389] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 16a The values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. S represents the sagittal beam, and T represents the meridional beam. The horizontal axis represents the deviation along the optical axis, and the vertical axis represents the image height. When a value in a certain field of view is too large, the image quality of that field of view is poor or high-level aberrations exist. Figure 16b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 16c All values ​​shown are within 2.5%, ensuring that there is no obvious distortion in the image.

[0390] Please refer to the following: Figures 17a to 17c , Figure 17a yes Figure 15 The axial chromatic aberration curve of the camera module 30 in some embodiments in the second shooting mode is shown. Figure 17b yes Figure 15 The image bokeh curve of the camera module 30 in some embodiments in the second shooting mode is shown. Figure 17c yes Figure 15 The image shown is a distorted image of the camera module 30 in a second shooting mode in some embodiments.

[0391] The axial chromatic aberration curve includes spherical aberration curves corresponding to different wavelengths of the system (the illustration includes 650nm, 610nm, 555nm, 510nm, and 470nm); its physical meaning is the deviation of light of the corresponding wavelength emitted in the 0-degree field of view from the ideal image point after passing through the optical system; its horizontal axis is the deviation value along the optical axis, and the vertical axis is the normalized coordinate at the pupil. Figure 17a The values ​​shown are all relatively small, indicating that the on-axis aberrations (spherical aberration, chromatic aberration, etc.) of optical lens 1 are well corrected. The astigmatism field curve is used to illustrate the deviation of the convergence point (image height) of the fine beam from the ideal imaging plane in different fields of view. X represents the sagittal beam, and Y represents the meridional beam. The horizontal axis represents the deviation value along the optical axis, and the vertical axis represents the corresponding field of view. When a value in a certain field of view is too large, the image quality of that field of view is poor or there are advanced aberrations. Figure 17b The field curvature in both directions shown is small, indicating that the system has good depth of focus. The distortion diagram is used to characterize the relative deviation between the beam convergence point (actual image height) and the ideal image height in different fields of view. Figure 17c All values ​​shown are within 5%, ensuring that there is no obvious distortion in the image.

[0392] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0393] It should be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0394] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An optical lens (1), characterized in that, include: The first lens group (G1) has positive optical power; The second lens group (G2) has positive optical power; The third lens group (G3) has negative optical power; The fourth lens group (G4) has positive optical power; The fifth lens group (G5) has negative optical power; as well as Optical path switching element (5); The third lens group (G3), the fourth lens group (G4), and the fifth lens group (G5) are arranged sequentially from the object side to the image side. When the optical lens (1) is in the first shooting mode, the optical path switching element (5) is located on the image side of the first lens group (G1) and on the object side of the third lens group (G3), and the optical lens (1) has a first focal length. When the optical lens (1) is in the second shooting mode, the optical path switching element (5) is located on the image side of the second lens group (G2) and on the object side of the third lens group (G3), and the optical lens (1) has a second focal length. During the process of switching the optical lens (1) from the first shooting mode to the second shooting mode, at least two of the third lens group (G3), the fourth lens group (G4), and the fifth lens group (G5) move along the optical axis, and the optical lens (1) switches from the first focal length to the second focal length.

2. The optical lens (1) according to claim 1, characterized in that, During the process of switching the optical lens (1) from the first shooting mode to the second shooting mode, the third lens group (G3) and the fifth lens group (G5) move in the same direction along the optical axis of the third lens group (G3), and the optical lens (1) switches from the first focal length to the second focal length.

3. The optical lens (1) according to claim 1 or 2, characterized in that, When the optical lens (1) is in the first shooting mode, the optical path switching element (5) changes the optical beam from the optical axis direction of the first lens group (G1) to the optical axis direction of the third lens group (G3); When the optical lens (1) is in the second shooting mode, the optical path switching element (5) changes the optical beam from the optical axis direction of the second lens group (G2) to the optical axis direction of the third lens group (G3); The second lens group (G2) is located on the side of the first lens group (G1) away from the third lens group (G3). During the process of the optical lens (1) switching from the first shooting mode to the second shooting mode, the optical path switching element (5) moves along the optical axis of the third lens group (G3).

4. The optical lens (1) according to claim 3, characterized in that, The focal length of the first lens group (G1) is less than the focal length of the second lens group (G2).

5. The optical lens (1) according to claim 3, characterized in that, The optical lens (1) satisfies: 0.2 <P / TTL<0.3; Wherein, P is the moving distance of the optical path switching element (5) during the process of the optical lens (1) switching from the first shooting mode to the second shooting mode, and TTL is the total optical length of the optical lens (1).

6. The optical lens (1) according to claim 3, characterized in that, The optical lens (1) satisfies: a <P; In the second shooting mode, the optical path switching element (5) and the third lens group (G3) have a first distance a; during the process of the optical lens (1) switching from the first shooting mode to the second shooting mode, the optical path switching element (5) moves a distance P, and the third lens group (G3) moves toward the optical path switching element (5).

7. The optical lens (1) according to any one of claims 3 to 6, characterized in that, The optical lens (1) further includes a light path reflecting element (6), which is located on the image side of the fifth lens group (G5). The light path reflecting element (6) is used to change the light beam from the optical axis direction of the fifth lens group (G5) to a third direction, which has an angle with the optical axis direction of the fifth lens group (G5). The third direction is parallel to the optical axis of the first lens group (G1), the optical path reflecting element (6) has an exit surface (63), the exit surface (63) is perpendicular to the third direction, and the exit surface (63) and the first lens group (G1) are located on the same side of the optical axis of the third lens group (G3).

8. The optical lens (1) according to any one of claims 2 to 7, characterized in that, The optical lens (1) satisfies: F2>F1, and 5<(|f3 / SK1|+|f5 / SK2|) / M<20; Wherein, SK1 is the distance that the third lens group (G3) moves during the process of the optical lens (1) switching from the first shooting mode to the second shooting mode, SK2 is the distance that the fifth lens group (G5) moves during the process of the optical lens (1) switching from the first shooting mode to the second shooting mode, f3 is the focal length of the third lens group (G3), f5 is the focal length of the fifth lens group (G5), F1 is the first focal length, F2 is the second focal length, M is the zoom ratio of the optical lens (1), and M = F2 / F1.

9. The optical lens (1) according to any one of claims 2 to 8, characterized in that, The optical lens (1) satisfies: 0.15 <f4 / F2<0.3; Wherein, f4 is the focal length of the fourth lens group (G4), and F2 is the second focal length.

10. The optical lens (1) according to any one of claims 2 to 9, characterized in that, The optical lens (1) satisfies: 0.3 < -f3 / F2 < 0.4; Where f3 is the focal length of the third lens group (G3) and F2 is the second focal length.

11. The optical lens (1) according to any one of claims 2 to 10, characterized in that, The optical lens (1) satisfies: 0.3 < -f5 / F2 < 0.45; Wherein, f5 is the focal length of the fifth lens group (G5), and F2 is the second focal length.

12. The optical lens (1) according to any one of claims 1 to 11, characterized in that, The optical lens (1) satisfies: F2>F1, and 15 <TTL / M<20; Wherein, TTL is the total optical length of the optical lens (1), F1 is the first focal length, F2 is the second focal length, M is the zoom ratio of the optical lens (1), and M = F2 / F1.

13. The optical lens (1) according to claim 12, characterized in that, The optical lens (1) satisfies: F2 / TTL>0.

8.

14. The optical lens (1) according to any one of claims 1 to 13, characterized in that, The optical lens (1) satisfies: 6 < (F1 + F2) / IMH < 10; Wherein, IMH is the half-image height of the optical lens (1), F1 is the first focal length, and F2 is the second focal length.

15. The optical lens (1) according to any one of claims 1 to 14, characterized in that, The optical lens (1) satisfies: M = F2 / F1, 1 <M<2; Where M is the zoom ratio of the optical lens (1); F1 is the first focal length, and F2 is the second focal length.

16. The optical lens (1) according to any one of claims 1 to 15, characterized in that, The optical lens (1) satisfies: 1 <f2 / f1<2; Where f1 is the focal length of the first lens group (G1) and f2 is the focal length of the second lens group (G2).

17. The optical lens (1) according to any one of claims 1 to 16, characterized in that, The optical lens (1) is configured such that, during the focusing process of the optical lens (1), at least one lens of the third lens group (G3), the fourth lens group (G4), and the fifth lens group (G5) moves along the optical axis.

18. The optical lens (1) according to claim 19, characterized in that, The optical lens (1) is configured such that, during the focusing process of the optical lens (1), the third lens group (G3) and the fifth lens group (G5) move along the optical axis direction of the third lens group (G3).

19. A camera module (30), characterized in that, It includes a photosensitive element (2) and an optical lens (1) as claimed in any one of claims 1 to 18, wherein the photosensitive element (2) is located on the image side of the optical lens (1).

20. The camera module (30) according to claim 19, characterized in that, The photosensitive element (2) is configured such that during the image stabilization process of the camera module (30), the photosensitive element (2) moves along a direction perpendicular to the optical axis of the photosensitive element (2).

21. An electronic device (100), characterized in that, Includes an image processor (60) and a camera module (30) as described in claim 19 or 20, wherein the image processor (60) is communicatively connected to the camera module (30), and the image processor (60) is used to acquire image data from the camera module (30) and process the image data.

Images