Optical lens, camera module, and electronic device

Abstract

An optical lens (11), a camera module, and an electronic device, for use in achieving a miniaturized zoom optical lens having a large zoom ratio. The optical lens (11) comprises a first refractive element (31), a first zoom lens group (21), and a second zoom lens group (22) which are sequentially arranged. The first zoom lens group (21) comprises a first lens group (110) having a first optical axis (a1) and a second lens group (120) having a second optical axis (a2). At least one of the first lens group (110) and the second lens group (120) is arranged on a light incident side of the first refractive element (31). The first lens group (110) can move in a direction perpendicular to the first optical axis (a1), and the second lens group (120) can move in a direction perpendicular to the second optical axis (a2), thereby changing the focal length of the optical lens (11). The second zoom lens group (22) comprises a third lens group (130) having a third optical axis (a3). The third lens group (130) can move along the third optical axis (a3) to change the distance between the third lens group (130) and the first refractive element (31), so that an optical path distance of light emitted from the first refractive element (31) and incident to the third lens group (130) can be changed, thereby changing the focal length of the optical lens (11).

Description

Optical lenses, camera modules and electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202411352342.X, filed with the State Intellectual Property Office of China on September 25, 2024, entitled "Optical Lens, Camera Module and Electronic Device", and Chinese Patent Application No. 202411554502.9, filed with the State Intellectual Property Office of China on October 31, 2024, entitled "Optical Lens, Camera Module and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of camera technology, and more particularly to an optical lens, camera module, and electronic device. Background Technology

[0003] With the development of electronic devices, people's demands for photography are also increasing. In order to meet people's photography experience, zoom lenses are gradually being applied to electronic devices.

[0004] However, the application of zoom lenses is limited due to their large size and the size limitations of electronic devices. Summary of the Invention

[0005] This application provides an optical lens, a camera module, and an electronic device for realizing a miniaturized optical lens with a large zoom ratio.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A first aspect of this application provides an optical lens, including a first refracting element, a first zoom lens group disposed on the light-incident side of the first refracting element, and a second zoom lens group disposed on the light-outceasing side of the first refracting element. The first zoom lens group includes a first lens group having a first optical axis and a second lens group having a second optical axis, the first and second optical axes being parallel. At least one of the first and second lens groups is disposed on the light-incident side of the first refracting element. At least one of the first and second lens groups is movable along a direction perpendicular to the first optical axis. The second zoom lens group includes a third lens group having a third optical axis, the first and second optical axes being perpendicular to the third optical axis. The third lens group is movable along the third optical axis to change the distance between the third lens group and the first refracting element, thereby changing the optical path distance of light emitted from the first refracting element to the third lens group, and thus changing the focal length of the optical lens. Wherein, when the first lens group or the second lens group is located on the light-incident side of the first refracting element, the first lens group and the second lens group do not overlap along the direction of the first optical axis.

[0008] The optical lens provided in this application can effectively control the contribution of the first and second zoom lens groups to the zoom ratio of the optical lens by changing the optical power of the lens group in the first zoom lens group on the light-incident side of the first refracting element and by moving at least one of the lens groups in the second zoom lens group, thereby changing the focal length of the optical lens and achieving a large zoom ratio. Furthermore, by controlling whether at least a portion of the lens groups in the first zoom lens group are positioned on the optical path and by controlling the movement of at least a portion of the lens groups in the second zoom lens group along the optical axis, the zoom ratio of the optical lens can be increased, enabling the optical lens to meet different shooting scenarios and needs, and increasing the applicability of the optical lens.

[0009] The optical lens provided in this application embodiment can effectively utilize space, has a small size, high zoom color consistency, and low cost, thus improving optical competitiveness. Furthermore, the solution provided in this application embodiment is simple and has low complexity.

[0010] In one possible implementation, at least one of the first lens group and the second lens group moves along a direction perpendicular to the first optical axis from the light-incident side of the first refractive element toward the image side of the optical lens, or moves from the image side of the optical lens toward the light-incident side of the first refractive element. In this way, lens groups in the first zoom lens group that are not located in the optical path do not occupy space in the optical lens, thus reducing the size of the optical lens.

[0011] In one possible implementation, the first lens group has positive optical power, and the second lens group also has positive optical power. When the optical lens is in a first state, both the first and second lens groups are located on the light-incident side of the first refracting element, and the first and second optical axes coincide. The focal length of the first zoom lens group located on the light-incident side of the first refracting element is fw1, and the focal length of the optical lens is fw. When the optical lens is in a second state, the second lens group is located on the light-incident side of the first refracting element. The focal length of the first zoom lens group located on the light-incident side of the first refracting element is ft1, and the focal length of the optical lens is ft; where ft > fw, ft1 > fw1. This provides an implementation of an optical lens. By controlling the first lens group to move in a direction perpendicular to the first optical axis, the contribution of the first zoom lens group to the zoom ratio of the optical lens can be changed, thereby increasing the zoom ratio of the optical lens.

[0012] In one possible implementation, the first lens group has negative optical power, and the second lens group has positive optical power. When the optical lens is in a first state, the second lens group is located on the light-incident side of the first refracting element. When the optical lens is in a second state, both the first and second lens groups are located on the light-incident side of the first refracting element, and the first and second optical axes coincide. This provides an implementation of an optical lens. By controlling the movement of the first lens group along a direction perpendicular to the first optical axis, the contribution of the first zoom lens group to the zoom ratio of the optical lens can be changed, thereby increasing the zoom ratio of the optical lens.

[0013] In one possible implementation, both the first lens group and the second lens group have positive optical power. When the optical lens is in a first state, the second lens group is located on the light-incident side of the first refractive element; when the optical lens is in a second state, the first lens group is located on the light-incident side of the first refractive element. This provides an implementation of an optical lens. By controlling the movement of the first and second lens groups along a direction perpendicular to the first optical axis, the contribution of the first zoom lens group to the zoom ratio of the optical lens can be changed, thereby increasing the zoom ratio of the optical lens.

[0014] In one possible implementation, the second zoom lens group includes a fourth lens group, a fifth lens group, and a third lens group arranged sequentially along a third optical axis. During the zooming process of the optical lens switching from a first state to a second state, both the fifth and third lens groups move along the third optical axis towards the first refracting element; during the zooming process of the optical lens switching from a second state to a first state, both the fifth and third lens groups move along the third optical axis away from the first refracting element. This provides an implementation of an optical lens. By controlling the movement distance of the lens groups in the second zoom lens group, the cascade magnification of the second zoom lens group relative to the first zoom lens group located on the light-incident side of the first refracting element can be changed, effectively controlling the contribution of the second zoom lens group to the focal length of the optical lens, which is beneficial for controlling the focal length of the optical lens.

[0015] In one possible implementation, the second zoom lens group includes multiple lens groups arranged along the third optical axis; the lens group furthest from the first refracting element in the second zoom lens group has a negative optical power. This allows the light rays emitted through the second zoom lens group to diffuse, increasing the target surface area and improving image quality.

[0016] In one possible implementation, the fourth lens group has negative optical power, the fifth lens group has positive optical power, and the third lens has negative optical power. This provides a method for implementing an optical lens. By controlling the movement of either the fifth or third lens group along the third optical axis, the contribution of the second zoom lens group to the zoom ratio of the optical lens can be changed, thereby increasing the zoom ratio of the optical lens.

[0017] In one possible implementation, the fourth lens group has positive optical power, the fifth lens group has positive optical power, and the third lens has negative optical power. This provides an embodiment of an optical lens. By controlling the movement of either the fifth or third lens group along the third optical axis, the contribution of the second zoom lens group to the zoom ratio of the optical lens can be changed, thereby increasing the zoom ratio of the optical lens.

[0018] In one possible implementation, the second zoom lens group consists of a fourth lens group, a fifth lens group, and a third lens group arranged sequentially along the third optical axis; the fifth lens group is movable along the third optical axis; the fourth lens group has negative optical power, the fifth lens group has positive optical power, and the third lens group has negative optical power. This provides a method for implementing an optical lens. By controlling the movement of either the fifth or third lens group along the third optical axis, the contribution of the second zoom lens group to the zoom ratio of the optical lens can be changed, thereby increasing the zoom ratio of the optical lens.

[0019] In one possible implementation, at least one of the first lens group and the second lens group is disposed on the light-incident side of the first refracting element, comprising: when the optical lens is in a first state, both the first lens group and the second lens group are located on the light-incident side of the first refracting element, and the first optical axis and the second optical axis coincide; when the optical lens is in a second state, the first lens group is located on the light-incident side of the first refracting element; during the zooming process of the optical lens switching from the first state to the second state, the second lens group is moved out of the light-incident side of the first refracting element along a direction perpendicular to the first optical axis; during the zooming process of the optical lens switching from the second state to the first state, the second lens group is moved to the light-incident side of the first refracting element along a direction perpendicular to the first optical axis, so that the first optical axis and the second optical axis coincide. This provides a zooming method for an optical lens.

[0020] In one possible implementation, at least one of the first lens group and the second lens group is disposed on the light-incident side of the first refracting element, including: when the optical lens is in a first state, the first lens group is located on the light-incident side of the first refracting element; when the optical lens is in a second state, both the first lens group and the second lens group are located on the light-incident side of the first refracting element, and the first optical axis and the second optical axis coincide; during the zooming process of the optical lens switching from the first state to the second state, the second lens group is moved to the light-incident side of the first refracting element along a direction perpendicular to the first optical axis, so that the first optical axis and the second optical axis coincide; during the zooming process of the optical lens switching from the second state to the first state, the second lens group is moved out of the light-incident side of the first refracting element along a direction perpendicular to the first optical axis. This provides a zooming method for an optical lens.

[0021] In one possible implementation, the focal lengths of the first lens group and the second lens group are different; at least one of the first and second lens groups is disposed on the light-incident side of the first refractive element, including: when the optical lens is in a first state, the first lens group is located on the light-incident side of the first refractive element; when the optical lens is in a second state, the second lens group is located on the light-incident side of the first refractive element; during the zooming process of the optical lens switching from the first state to the second state, the second lens group moves to the light-incident side of the first refractive element along a direction perpendicular to the first optical axis, and the first lens group moves out of the light-incident side of the first refractive element along a direction perpendicular to the first optical axis; during the zooming process of the optical lens switching from the second state to the first state, the first lens group moves to the light-incident side of the first refractive element along a direction perpendicular to the first optical axis, and the second lens group moves out of the light-incident side of the first refractive element along a direction perpendicular to the first optical axis. This provides a zooming method for an optical lens.

[0022] In one possible implementation, the optical lens further includes a second refracting element located on the image side of the second zoom lens group. This allows the second refracting element to deflect the light path from the second zoom lens group multiple times, which helps to further reduce the size of the optical lens.

[0023] In one possible implementation, the first refractive element includes a prism or a mirror. This design, by incorporating the first refractive element, helps prevent the second zoom lens group from stacking in the direction perpendicular to the object plane, thereby reducing the size of the optical lens in that direction.

[0024] In one possible implementation, the second refracting element includes a prism or a mirror. This design helps prevent the second zoom lens group from stacking in the direction parallel to the object plane, thereby reducing the size of the optical lens in that direction.

[0025] In one possible implementation, the first state of the optical lens is the wide-angle end, and the second state is the telephoto end. This provides a zoom implementation method for an optical lens.

[0026] In one possible implementation, when the optical lens is in either the first or second state, the first optical axis and the second optical axis overlap. In this way, both the first lens group and the second lens group are positioned on the light-incident side of the first refracting element.

[0027] In one possible implementation, when the optical lens is in either the first or second state, the first lens group and the second lens group do not overlap along the direction of the first optical axis. In this way, only the first lens group or only the second lens group is located on the light-incident side of the first refracting element.

[0028] In a possible implementation, when the optical lens is at the telephoto end, the focal length of the optical lens is ft; when the optical lens is at the wide-angle end, the focal length of the optical lens is fw; ft and fw satisfy: 1 < ft / fw ≤ 4. In this way, by reasonably allocating the focal lengths of the optical lens at the telephoto end and the wide-angle end, the application scenarios of the optical lens can be increased, making the application of the optical lens more extensive.

[0029] In a possible implementation, when the optical lens is at the telephoto end, the focal length of the optical lens is ft; when the optical lens is at the wide-angle end, the focal length of the optical lens is fw; ft and fw satisfy: 1.5 ≤ ft / fw ≤ 2.5. In this way, the performance of the optical lens can be better and the imaging quality can be better.

[0030] In a possible implementation, when the optical lens is at the telephoto end, the focal length of the first zoom lens group located on the incident light side of the first refractive member is ft1; when the optical lens is at the wide-angle end, the focal length of the first zoom lens group located on the incident light side of the first refractive member is fw1; ft1 and fw1 satisfy: 1 < ft1 / fw1 ≤ 1.5. In this way, by reasonably allocating the focal lengths of the first zoom lens group located on the incident light side of the first refractive member when the optical lens is at the telephoto end and the wide-angle end, the contribution of the first zoom lens group located on the incident light side of the first refractive member to the zoom ratio of the optical lens can be effectively controlled, increasing the zoom ratio of the optical lens, enabling the optical lens to meet different shooting scenarios and shooting requirements, and increasing the applicability of the optical lens.

[0031] In a possible implementation, when the optical lens is at the telephoto end, the cascaded magnification ratio of the second zoom lens group to the first zoom lens group located on the incident light side of the first refractive member is Mt; when the optical lens is at the wide-angle end, the cascaded magnification ratio of the second zoom lens group to the first zoom lens group located on the incident light side of the first refractive member is Mw; Mt and Mw satisfy: 1.5 ≤ Mt / Mw ≤ 3.5. In this way, by reasonably allocating the cascaded magnification ratios of the optical lens when the optical lens is at the telephoto end and the wide-angle end, the contribution of the second zoom lens group to the zoom ratio of the optical lens can be effectively controlled, increasing the zoom ratio of the optical lens, enabling the optical lens to meet different shooting scenarios and shooting requirements, and increasing the applicability of the optical lens.

[0032] In one possible implementation, when the optical lens is at its telephoto end, the focal length of the first zoom lens group located on the light-incident side of the first refractive element is ft1, and the focal length of the second lens group is f11, where ft1 and f11 satisfy |f11 / ft1|≤28. Thus, by moving the lens group towards the light-incident side of the first refractive element to change the focal length of the optical lens, a reasonable allocation of the focal length of the first zoom lens group located on the light-incident side of the first refractive element when the optical lens is at its telephoto end, along with the focal length of the lens group moved towards the light-incident side of the first refractive element, can alter the contribution of the first zoom lens group on the light-incident side of the first refractive element to the zoom ratio of the optical lens, thereby increasing the zoom ratio of the optical lens.

[0033] In one possible implementation, when the optical lens is at the wide-angle end, the focal length of the first zoom lens group located on the light-incident side of the first refractive element is fw1, and the focal length of the second lens group is f11, where fw1 and f11 satisfy |f11 / fw1|≤30. Thus, by moving the lens group towards the light-incident side of the first refractive element to change the focal length of the optical lens, a reasonable allocation of the focal length of the first zoom lens group located on the light-incident side of the first refractive element and the focal length of the lens group moved there when the optical lens is at the wide-angle end can alter the contribution of the first zoom lens group on the light-incident side of the first refractive element to the zoom ratio of the optical lens, thereby increasing the zoom ratio of the optical lens.

[0034] In one possible implementation, when the optical lens is at its wide-angle end, its focal length is fw, where fw satisfies: 15mm ≤ fw ≤ 30mm. In this way, by controlling the focal length of the optical lens at its wide-angle end, the contribution of the first zoom lens group located on the light-incident side of the first refractive element to the wide-angle focal length of the optical lens can be effectively controlled, thereby expanding the shooting range of the optical lens, increasing its application scenarios, and making its applications more widespread.

[0035] In one possible implementation, when the optical lens is at its telephoto end, the focal length of the optical lens is ft, where ft satisfies: 35mm ≤ ft ≤ 55mm. In this way, by controlling the focal length of the optical lens at its telephoto end, the contribution of the first zoom lens group located on the light-incident side of the first refractive element to the focal length of the optical lens at its telephoto end can be effectively controlled, thereby expanding the shooting range of the optical lens, increasing its application scenarios, and making its applications more widespread.

[0036] In one possible implementation, when the optical lens is at its wide-angle end, the focal length of the first zoom lens group located on the light-incident side of the first refractive element is fw1, where fw1 satisfies: 15mm ≤ fw1 ≤ 30mm. In this way, by controlling the focal length of the first zoom lens group located on the light-incident side of the first refractive element when the optical lens is at its wide-angle end, the contribution of the first zoom lens group on the light-incident side of the first refractive element to the wide-angle focal length of the optical lens can be effectively controlled. This expands the shooting range of the optical lens, increases its zoom ratio, and enables the optical lens to meet different shooting scenarios and needs, thereby increasing its applicability.

[0037] In one possible implementation, when the optical lens is at its telephoto end, the focal length of the first zoom lens group located on the light-incident side of the first refracting element is ft1, where ft1 satisfies: 15mm ≤ ft1 ≤ 30mm. In this way, by controlling the focal length of the first zoom lens group located on the light-incident side of the first refracting element when the optical lens is at its telephoto end, the contribution of the first zoom lens group on the light-incident side of the first refracting element to the focal length of the optical lens can be effectively controlled. This expands the telephoto capability of the optical lens, increases its zoom ratio, and enables the optical lens to meet different shooting scenarios and needs, thereby increasing its versatility.

[0038] In one possible implementation, when the optical lens is at the wide-angle end, the cascaded magnification of the second zoom lens group to the first zoom lens group located on the light-incident side of the first refracting element is Mw, where Mw satisfies: 0.5 ≤ Mw ≤ 1.5. In this way, by controlling the cascaded magnification of the optical lens when it is at the wide-angle end, the contribution of the second zoom lens group to the focal length of the optical lens can be effectively controlled, which is beneficial for controlling the focal length at the wide-angle end.

[0039] In one possible implementation, when the optical lens is at its telephoto end, the cascaded magnification of the second zoom lens group relative to the first zoom lens group located on the light-incident side of the first refracting element is Mt, where Mt satisfies: 1.2 ≤ Mt ≤ 2.8. In this way, by controlling the cascaded magnification of the optical lens when it is at its telephoto end, the contribution of the second zoom lens group to the focal length of the optical lens can be effectively controlled, which is beneficial for controlling the focal length at the telephoto end.

[0040] In one possible implementation, the total optical length (TTL) of the optical lens satisfies: TTL ≤ 51mm. This allows for the miniaturization of the optical lens by controlling its total optical length.

[0041] In one possible implementation, the second zoom lens group includes multiple lens groups arranged along a third optical axis; the lens group with the largest moving distance in the second zoom lens group has a moving distance of dm, and the distance between the first and second refracting elements is d1, where dm and d1 satisfy: 0.25 ≤ dm / d1 ≤ 0.9. In this way, by moving at least some of the lens groups in the second zoom lens group, the position of that lens group between the first and second refracting elements is changed, thereby altering the focal length of the optical lens. Furthermore, by reasonably allocating the maximum moving distance and the distance between the first and second refracting elements, the moving distance of each lens group in the second zoom lens group can be effectively controlled, thereby controlling the zoom ratio of the optical lens and facilitating the change of the focal length of the optical lens.

[0042] In one possible implementation, the second zoom lens group includes multiple lens groups arranged along the third optical axis; the lens group with the largest moving distance in the second zoom lens group has a moving distance of dm, and the imaging target surface size of the optical lens is IH, where dm and IH satisfy: dm / IH ≥ 0.4. In this way, by controlling the relationship between the maximum moving distance of the lens groups in the second zoom lens group and the imaging target surface size, the zoom ratio of the optical lens can be effectively increased, enabling the optical lens to achieve high-quality imaging.

[0043] In one possible implementation, the distance between the first and second refracting elements is d1, and the imaging target surface size of the optical lens is IH, where d1 and IH satisfy: d1 / IH ≤ 2.5. In this way, by controlling the relationship between the imaging target surface size and the distance between the first and second refracting elements, the size of the optical lens can be controlled, thereby achieving miniaturization of the optical lens.

[0044] In one possible implementation, the maximum moving distance of the lens group in the second zoom lens group is dm, where dm satisfies: 5mm ≤ dm ≤ 15mm. This increases the zoom ratio of the optical lens by controlling the moving distance of the lens group in the second zoom lens group, which is beneficial for miniaturizing the optical lens.

[0045] In one possible implementation, the distance d1 between the first and second refracting elements is less than or equal to 30mm. This allows for better control of the optical lens size by adjusting the distance between the first and second refracting elements, increasing the zoom ratio and thus achieving miniaturization of the optical lens.

[0046] In one possible implementation, the second zoom lens group includes multiple lens groups arranged along a third optical axis; the sum of the movement distances of the lens groups in the same direction is greater than or equal to 10mm. This allows for the miniaturization of the optical lens by controlling the movement distance of the lens groups in the second zoom lens group.

[0047] In one possible implementation, the second zoom lens group includes multiple lens groups arranged along the third optical axis; the focal length of the lens group furthest from the first refracting element in the second zoom lens group is f22, and the focal length of the optical lens at the telephoto end is ft; f22 and ft satisfy: 2≤|ft / f22|≤8. In this way, by reasonably allocating the focal length of the lens group furthest from the first refracting element in the second zoom lens group and the focal length of the optical lens at the telephoto end, the optical power of the lens group furthest from the first refracting element in the second zoom lens group can be reasonably controlled, thereby facilitating the increase of the target surface area of ​​the optical lens.

[0048] In one possible implementation, the second zoom lens group includes multiple lens groups arranged along the third optical axis; the focal length of the lens group furthest from the first refractive element in the second zoom lens group is f22, and the focal length of the optical lens is fw when the optical lens is at the wide-angle end; f22 and fw satisfy: 1≤|fw / f22|≤4. In this way, by reasonably allocating the focal length of the lens group furthest from the first refractive element in the second zoom lens group and the focal length when the optical lens is at the wide-angle end, the optical power of the lens group furthest from the first refractive element in the second zoom lens group can be reasonably controlled, which is beneficial for increasing the target surface area of ​​the optical lens.

[0049] In one possible implementation, the total optical length of the optical lens is TTL, the imaging target size is IH, the field of view (FOVw) at the wide-angle end is FOVw, and the field of view (FOVt) at the telephoto end is FOVt. TTL, IH, FOVw, and FOVt satisfy: (TTL / IH)×(FOVt / FOVw)≤2.5. By rationally allocating the field of view at the wide-angle and telephoto ends, and considering the relationship between the total optical length and the target size, a smaller total optical length and a larger imaging target size can be achieved, which improves the applicability and competitiveness of the optical lens.

[0050] A second aspect of the embodiments of this application provides a camera module, including an optical sensor and an optical lens according to any one of the first aspects, wherein the optical sensor is disposed on the image side of the optical lens.

[0051] The camera module provided in the second aspect of the embodiments of this application includes the optical lens of any one of the first aspects, and its beneficial effects are the same as those of the optical lens, which will not be repeated here.

[0052] A third aspect of this application provides an electronic device, including a camera module and a printed circuit board as described in the second aspect, wherein the camera module is electrically connected to the printed circuit board.

[0053] The electronic device provided in the third aspect of the embodiments of this application includes the camera module of the second aspect, and its beneficial effects are the same as those of the camera module, which will not be repeated here. Attached Figure Description

[0054] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0055] Figure 2A is a schematic diagram of the structure of a camera module provided in an embodiment of this application;

[0056] Figure 2B is a schematic diagram of an optical lens provided in an embodiment of this application;

[0057] Figure 3 is a schematic diagram of another optical lens provided in an embodiment of this application;

[0058] Figure 4 is a schematic diagram of the structure of another optical lens provided in an embodiment of this application;

[0059] Figure 5 is a structural schematic diagram of another optical lens provided in an embodiment of this application;

[0060] Figure 6A is a schematic diagram of the structure of another optical lens provided in an embodiment of this application;

[0061] Figure 6B is a schematic diagram of the structure of another optical lens provided in an embodiment of this application;

[0062] Figure 6C is a schematic diagram of the structure of another optical lens provided in an embodiment of this application;

[0063] Figure 7A is a schematic diagram of the structure of another optical lens provided in an embodiment of this application;

[0064] Figure 7B is a schematic diagram of the structure of another optical lens provided in an embodiment of this application;

[0065] Figure 8A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 1 of this application;

[0066] Figure 8B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 1 of this application;

[0067] Figure 8C is a modulation transfer function curve of an optical lens in the wide-angle end state provided in Embodiment 1 of this application;

[0068] Figure 8D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 1 of this application;

[0069] Figure 9A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 2 of this application;

[0070] Figure 9B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 2 of this application;

[0071] Figure 9C is a modulation transfer function curve of an optical lens in the wide-angle end state according to Embodiment 2 of this application;

[0072] Figure 9D is a modulation transfer function curve of an optical lens in the telephoto end state according to Embodiment 2 of this application;

[0073] Figure 10A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 3 of this application;

[0074] Figure 10B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 3 of this application;

[0075] Figure 10C is a modulation transfer function curve of an optical lens in the wide-angle end state provided in Embodiment 3 of this application;

[0076] Figure 10D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 3 of this application;

[0077] Figure 11A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 4 of this application;

[0078] Figure 11B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 4 of this application;

[0079] Figure 11C is a modulation transfer function curve of an optical lens in the wide-angle end state according to Embodiment 4 of this application;

[0080] Figure 11D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 4 of this application;

[0081] Figure 12A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 5 of this application;

[0082] Figure 12B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 5 of this application;

[0083] Figure 12C is a modulation transfer function curve of an optical lens in the wide-angle end state according to Embodiment 5 of this application;

[0084] Figure 12D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 5 of this application;

[0085] Figure 13A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment Six of this application;

[0086] Figure 13B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment Six of this application;

[0087] Figure 13C is a modulation transfer function curve of an optical lens in the wide-angle end state provided in Embodiment Six of this application;

[0088] Figure 13D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 6 of this application;

[0089] Figure 14A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 7 of this application;

[0090] Figure 14B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 7 of this application;

[0091] Figure 14C is a modulation transfer function curve of an optical lens in the wide-angle end state provided in Embodiment 7 of this application;

[0092] Figure 14D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 7 of this application;

[0093] Figure 15A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 8 of this application;

[0094] Figure 15B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 8 of this application;

[0095] Figure 15C is a modulation transfer function curve of an optical lens in the wide-angle end state provided in Embodiment 8 of this application;

[0096] Figure 15D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 8 of this application;

[0097] Figure 16A is a simulation structure diagram of an optical lens in the wide-angle end state provided in Embodiment 9 of this application;

[0098] Figure 16B is a simulation structure diagram of an optical lens in the telephoto end state provided in Embodiment 9 of this application;

[0099] Figure 16C is a modulation transfer function curve of an optical lens in the wide-angle end state according to Embodiment 9 of this application;

[0100] Figure 16D is a modulation transfer function curve of an optical lens in the telephoto end state provided in Embodiment 9 of this application.

[0101] Reference numerals in the attached figures: 1-Electronic device; 2-Display module; 3-Middle frame; 4-Housing; 5-Cover plate; 10-Camera module; 11-Optical lens; 12-Photosensitive element; 13-Filter; 21-First zoom lens group; 22-Second zoom lens group; 31-First refracting element; 32-Second refracting element; 110-First lens group; 120-Second lens group; 130-Third lens group; 140-Fourth lens group; 150-Fifth lens group; 101-First lens; 102-Second lens; 103-Third lens; 104-Fourth lens; 105-Fifth lens; 106-Sixth lens; 107-Seventh lens; 108-Eighth lens; 109-Ninth lens; 1010-Tenth lens; 1011-Eleventh lens. Detailed Implementation

[0102] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0103] Hereinafter, the terms "second," "first," etc., are used for descriptive convenience only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "second," "first," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0104] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" may be defined relative to the orientation in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and can change accordingly based on the orientation of the components in the accompanying drawings.

[0105] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, the term "coupled connection" can be a direct electrical connection or an indirect electrical connection through an intermediate medium. The term "contact" can be direct contact or indirect contact through an intermediate medium.

[0106] In this embodiment of the application, "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0107] To facilitate understanding of the technical solutions, the technical terms used in this application are explained below.

[0108] The incident light side and the exit light side are the areas through which the imaging rays pass. The imaging rays include the chief ray and the marginal ray. The incident light side is the side facing the object, and the exit light side is the side facing the image. The light rays are transmitted from the incident light side to the exit light side.

[0109] Optical power: equal to the difference between the image-side beam convergence and the object-side beam convergence, characterizing the refractive power of an optical lens for incident parallel beams of light. Optical power is generally expressed in... express, The higher the value, the more the parallel beam of light is refracted. At that time, bending is convergent; At that time, the bending is divergent. When the refraction occurs, it is called plane refraction, which means that the axially parallel beam remains axially parallel after refraction and no bending phenomenon occurs.

[0110] Total track length (TTL): The total track length is the length along the optical axis from the object-side surface of the first optical element facing the object in the lens to the image plane. In other words, it's the total length from the lens barrel head to the image plane. The total track length is used to characterize the size of the lens.

[0111] Aperture stop: This is a device used to control the amount of light passing through the lens and entering the sensor inside the camera body. The aperture number (F#) is a relative value obtained by dividing the lens's focal length by its aperture diameter (the reciprocal of the relative aperture). A smaller F# value allows more light to enter the lens in the same unit of time, resulting in better lens performance in low-light conditions. A larger F# value results in a shallower depth of field, blurring the background in the photo.

[0112] Focal length (f), also known as focal length, is a measure of the convergence or divergence of light in an optical lens. It refers to the vertical distance from the optical center of a lens or lens group to the imaging plane when a scene at infinity is formed into a clear image on the imaging plane.

[0113] Effective focal length (EFL): The distance between the rear principal plane of a lens or lens group and the image plane. For thin lenses, the focal length is the distance from the center of the lens to the image plane.

[0114] The optical axis is a ray that passes perpendicularly through the center of an ideal lens. When rays parallel to the optical axis enter a convex lens, an ideal convex lens should have all rays converging at a single point behind the lens; this point of convergence is the focal point.

[0115] Abbe number: The Abbe number of a lens is its dispersion coefficient, which refers to the ratio of the differences in the refractive index of the lens at different wavelengths. It is used to characterize the degree of dispersion of the lens. Generally, the higher the refractive index of the medium, the more severe the dispersion, and the smaller the Abbe number. Conversely, the lower the refractive index of the medium, the less severe the dispersion, and the larger the Abbe number.

[0116] Aberrations refer to the discrepancies between the results obtained from non-paraxial ray tracing and paraxial ray tracing in a lens, deviating from the ideal state of Gaussian optics (first-order approximation theory or paraxial rays). Aberrations are divided into two main categories: chromatic aberration and monochromatic aberration. Chromatic aberration occurs because the refractive index of the lens material is a function of wavelength. Different wavelengths of light passing through the lens cause dispersion due to the different refractive indices. Dispersion where the refractive index decreases with increasing wavelength is called normal dispersion, while dispersion where the refractive index increases with increasing wavelength is called negative dispersion (or anomalous dispersion). Monochromatic aberration refers to aberrations that occur even with highly monochromatic light. Based on the effect, monochromatic aberrations are divided into two categories: those that "blur the image" and those that "distort the image." The former includes spherical aberration and astigmatism, while the latter includes field curvature and distortion. Chromatic aberration includes axial chromatic aberration and off-axis chromatic aberration. Axial chromatic aberration refers to the aberration along the optical axis. Because the lens has different refractive indices for different wavelengths of light, different colors of light have different focal points.

[0117] Object plane: The object is simplified to a point on the optical axis (object distance point), and a plane passing through this point and perpendicular to the optical axis.

[0118] The technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0119] This application provides an electronic device. This electronic device can be, for example, a consumer electronics product, a home electronics product, an in-vehicle electronics product, or a financial terminal product. Consumer electronics products include mobile phones, tablets, laptops, e-readers, personal computers (PCs), personal digital assistants (PDAs), desktop monitors, smart wearable products (e.g., smartwatches, smart bracelets), virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, drones, etc. Home electronics products include smart door locks, televisions, remote controls, refrigerators, and small rechargeable household appliances (e.g., soymilk makers, robot vacuum cleaners), etc. In-vehicle electronics products include in-vehicle navigation systems, in-vehicle DVDs, etc. Financial terminal products include ATMs, self-service terminals, etc. This application does not impose special limitations on the specific form of the above-mentioned electronic device. For ease of explanation, the following embodiments all use mobile phones as an example for illustration.

[0120] An example of the structure of an electronic device is shown in Figure 1. The electronic device 1 mainly includes a display module 2, a middle frame 3, a housing (or battery cover, back cover) 4, and a cover plate 5.

[0121] The display module 2 has a light-emitting side that allows the display image to be seen and a non-light-emitting side that is opposite to the light-emitting side. The back of the display module 2 is close to the middle frame 3, and the cover plate 5 is disposed on the light-emitting side of the display module 2.

[0122] The cover plate 5 is located on the side of the display module 2 away from the middle frame 3. The cover plate 5 can be, for example, a cover glass (CG), which can have a certain degree of toughness.

[0123] The middle frame 3 is located between the display module 2 and the housing 4. The surface of the middle frame 3 away from the display module 2 is used to mount internal components such as batteries, printed circuit boards (PCBs), cameras, and antennas. After the housing 4 is closed with the middle frame 3, the aforementioned internal components are located between the housing 4 and the middle frame 3.

[0124] The aforementioned display module 2 includes a display panel (DP).

[0125] The aforementioned electronic device 1 may further include an integrated circuit disposed on a printed circuit board. The printed circuit board is used to carry the integrated circuit and is electrically connected to the integrated circuit to enable signal communication.

[0126] In some embodiments, the electronic device 1 further includes a processor (CPU) chip, a radio frequency chip, a radio frequency power amplifier (PA), a system on a chip (SOC), a power management integrated circuit (PMIC), a memory chip (e.g., high bandwidth memory (HBM)), an audio processor, a touch screen controller, NAND flash, an image processor, a camera, and a microphone, etc., disposed on a printed circuit board. The printed circuit board is used to carry the above-mentioned electronic devices and to complete signal interaction with the above-mentioned electronic devices.

[0127] For example, an image processor is communicatively connected to a camera. The image processor acquires image data from the camera and processes the image data. The communication connection between the camera and the image processor can include data transmission via electrical connections such as wiring, or data transmission via coupling or other methods. It is understood that the camera and the image processor can also achieve a communication connection through other means capable of data transmission.

[0128] The image processor optimizes the digital image signal and transmits the processed signal to the display module 2. The image processor can be an image processing chip or a digital signal processing chip. Its function is to transmit the data obtained by the photosensitive chip to the processor chip in a timely and fast manner and refresh the photosensitive chip. Therefore, the performance of the image processor directly affects the image quality (such as color saturation, sharpness, etc.).

[0129] In some embodiments, the camera of the electronic device 1 includes a first camera and a second camera. For example, the first camera serves as the front-facing camera of the electronic device and is disposed on the printed circuit board near the display module 2. The second camera serves as the rear-facing camera of the electronic device 1 and is disposed on the printed circuit board near the housing 4. In this embodiment, the number and placement of the cameras are not limited; they can be reasonably configured according to actual conditions.

[0130] Based on this, this application embodiment also provides a camera module, which is any one of the cameras included in the above-mentioned electronic device 1. As shown in FIG2A, the camera module 10 includes an optical lens 11, a photosensitive element 12, and a filter 13.

[0131] As shown in Figure 2A, the photosensitive element 12 is disposed on the image side of the optical lens 11. For example, the photosensitive element 12 is disposed on the focal plane of the optical lens 11 to present a clear image.

[0132] For example, the photosensitive element 12 may include an optical sensor. For instance, the optical sensor is an image sensor.

[0133] In some embodiments, as shown in FIG2A, the camera module 10 further includes a filter 13. The filter 13 is disposed between the optical lens 11 and the photosensitive element 12.

[0134] For example, filter 13 is used to filter out unwanted wavelengths in the light to prevent the photosensitive element 12 from producing false colors or ripples, thereby improving effective resolution and color reproduction.

[0135] The optical lens 11 mainly uses the refraction principle of the lens to form an image, that is, light passes through the optical lens to form a clear image on the focal plane, and forms an image through the photosensitive element 12 located on the focal plane.

[0136] As users demand increasingly higher photographic performance from electronic devices, the use of medium-to-long telephoto optical lenses has become a development trend in camera modules. Based on this, as shown in Figure 2B, an optical lens 11 is illustrated, capable of meeting the needs of medium-to-long telephoto photography.

[0137] However, due to the large total track length (TTL) of the aforementioned optical lens 11, the size of the optical lens 11 is also large. The fact that the photosensitive element 12 is located on the focal plane of the optical lens 11 results in an even larger size for the camera module 10.

[0138] The optical lens 11 may include multiple lenses with fixed focal lengths, and zoom is achieved by combining the multiple lenses with fixed focal lengths during shooting. However, such an optical lens 11 will result in an increased size, which is not conducive to achieving a thinner and lighter electronic device 1.

[0139] Furthermore, users are now more eager for electronic devices with telephoto lenses that have large focal lengths and high zoom ratios. Zoom lenses have become an important part of the user's photography experience. As telephoto photography on electronic devices becomes more and more common, users' requirements for zoom lenses are gradually increasing.

[0140] For example, a zoom effect can be achieved by combining one or more fixed-focus optical lenses.

[0141] However, the above-mentioned zoom can only be performed between a few fixed focal lengths, and the color consistency between different optical lenses is poor, resulting in high costs.

[0142] Alternatively, zoom can be achieved by moving the lens elements of the optical lens. However, this would require a larger additional size to meet the zoom requirement, making it difficult to meet the need for miniaturization of the electronic settings.

[0143] Based on this, in order to achieve a miniaturized optical lens with a large zoom ratio, this application provides an optical lens that is applied in the aforementioned camera module 10. As shown in FIG3, the optical lens 11 includes a first zoom lens group 21, a first refracting element 31, and a second zoom lens group 22 arranged in sequence.

[0144] As shown in Figure 3, the first zoom lens group 21 includes a first lens group 110 and a second lens group 120. The first lens group 110 has a first optical axis a1, and the second lens group 120 has a second optical axis a2. The first optical axis a1 and the second optical axis a2 are parallel.

[0145] At least one of the first lens group 110 and the second lens group 120 can be moved in a direction perpendicular to the first optical axis a1, so that at least one of the first lens group 110 and the second lens group 120 is disposed on the light-incident side of the first refracting element 31.

[0146] In this way, the focal length of the lens group on the light-incident side of the first refracting element 31 can be changed, thereby changing the focal length of the optical lens 11.

[0147] It is clarified here that at least one of the first lens group 110 and the second lens group 120 is disposed on the light-incident side of the first refractive element 31, which can be understood as light rays emitted from at least one of the first lens group 110 and the second lens group 120 being incident on the first refractive element 31.

[0148] For example, as shown in FIG3, the first lens group 110 is disposed on the light-incident side of the first refracting element 31, that is, the light emitted through the first lens group 110 is incident on the first refracting element 31, and at this time the light does not pass through the second lens group 120.

[0149] Alternatively, as exemplarily shown in FIG4, the second lens group 120 is disposed on the light-incident side of the first refracting element 31, that is, the light emitted through the second lens group 120 is incident on the first refracting element 31, while the light does not pass through the first lens group 110.

[0150] Alternatively, as exemplarily shown in Figure 5, both the first lens group 110 and the second lens group 120 are disposed on the light-incident side of the first refractive element 31. That is, both the first lens group 110 and the second lens group 120 are disposed on the light-incident side of the first refractive element 31, and light rays are emitted sequentially through the first lens group 110 and the second lens group 120, and the emitted light rays are incident on the first refractive element 31. This embodiment does not limit the position of the first lens group 110 and the second lens group 120; either the first lens group 110 or the second lens group 120 can be closer to the first refractive element 31.

[0151] In this embodiment, the first lens group 110 and the first refractive element 31 have a first distance, and the second lens group 120 and the first refractive element 31 have a second distance, wherein the first distance and the second distance are different. That is, when both the first lens group 110 and the second lens group 120 are disposed on the light-incident side of the first refractive element 31, the first lens group 110 and the second lens group 120 are stacked. At this time, the first optical axis a1 and the second optical axis a2 coincide.

[0152] In this embodiment, the number of lens groups included in the first zoom lens group 21 is not limited. For example, the number of lens groups in the first zoom lens group 21 can be 2, 3, or 4. When the first zoom lens group 21 includes more than 2 lens groups, the description of the other lens groups is similar to the description of the first lens group 110 and the second lens group 120 described above. For details, please refer to the above description of the first lens group 110 and the second lens group 120.

[0153] Referring again to Figure 3, the second zoom lens group 22 is disposed on the image side of the first refracting element 31. The second zoom lens group 22 includes one or more lens groups. For example, the second zoom lens group 22 may include one lens group, two lens groups, three lens groups, or four lens groups, etc. In this embodiment, the number of lens groups included in the second zoom lens group 22 is not limited, and can be reasonably set according to the actual situation.

[0154] In some embodiments, the second zoom lens group 22 includes a third lens group 130 having a third optical axis a3.

[0155] The third lens group 130 can move along the third optical axis a3 to change the distance between the third lens group 130 and the first refracting element 31, thereby changing the optical path distance of the light emitted from the first refracting element 31 to the third lens group 130, and thus changing the focal length of the optical lens 11.

[0156] In this embodiment of the application, the first optical axis a1 and the second optical axis a2 are perpendicular to the third optical axis a3, respectively. That is, the first optical axis a1 is perpendicular to the third optical axis a3, and the second optical axis a2 is perpendicular to the third optical axis a3.

[0157] For example, as shown in Figure 3, the second zoom lens group 22 is composed of a third lens group 130, a fourth lens group 140 and a fifth lens group 150.

[0158] The fourth lens group 140 has a third optical axis a3, and the fifth lens group 150 also has a third optical axis a3. That is to say, the fifth lens group 150, the fourth lens group 140, and the third lens group 130 all share the same optical axis (third optical axis a3).

[0159] In this embodiment, the positions of the third lens group 130, the fourth lens group 140, and the fifth lens group 150 are not limited. For example, as shown in FIG3, the fourth lens group 140, the fifth lens group 150, and the third lens group 130 are arranged sequentially from the object side to the image side.

[0160] For example, the fifth lens group 150 can move along the third optical axis a3 to change the distance between the fifth lens group 150 and the first refracting element 31, so that the light path distance of the light emitted from the first refracting element 31 to the fifth lens group 150 is changed, thereby changing the focal length of the optical lens 11.

[0161] For example, the fourth lens group 140 can move along the third optical axis a3 to change the distance between the fourth lens group 140 and the first refracting element 31, so that the light path distance from the first refracting element 31 to the fourth lens group 140 is changed, thereby changing the focal length of the optical lens 11.

[0162] Alternatively, as an example, in some embodiments, the position of the lens group closest to the first refractive element 31 in the second zoom lens group 22 (i.e., the fourth lens group 140) remains unchanged, while only the fifth lens group 150 and the third lens group 130 are moved. By moving the positions of the fifth lens group 150 and the third lens group 130, the contribution of the second zoom lens group 22 to the zoom ratio of the optical lens 11 can be effectively controlled, increasing the zoom ratio of the optical lens 11 and enabling the optical lens 11 to meet different shooting scenarios and shooting needs, thereby increasing the applicability of the optical lens 11.

[0163] For example, the lens group furthest from the first refractive element 31 in the second zoom lens group 22 has negative optical power. As shown in FIG3, the third lens group 130 is the lens group furthest from the first refractive element 31 in the second zoom lens group 22, and the third lens group 130 has negative optical power.

[0164] In this way, the light emitted through the second zoom lens group 22 can be diffused, increasing the target surface and improving the image quality.

[0165] For example, the fourth lens group 140 has negative optical power, the fifth lens group 150 has positive optical power, and the third lens group 130 has negative optical power.

[0166] In this way, by controlling at least one of the fifth lens group and the third lens group to move along the third optical axis a3, the contribution of the second zoom lens group 22 to the zoom ratio of the optical lens 11 can be changed, thereby increasing the zoom ratio of the optical lens 11.

[0167] For example, the second zoom lens group 22 may include more than 3 lens groups. This application embodiment does not limit this, and can be reasonably set according to the actual situation.

[0168] When the second zoom lens group 22 includes three or more lens groups, the description of the other lens groups is similar to that of the third lens group 130, the fourth lens group 140 and the fifth lens group 150 described above. For details, please refer to the relevant introduction of the third lens group 130, the fourth lens group 140 and the fifth lens group 150 described above.

[0169] As shown in Figure 3, the first lens group 110 and the second lens group 120 may each include one lens, and the third lens group 130, the fourth lens group 140, and the fifth lens group 150 may each include at least two lenses. Of course, in some other examples, the first lens group 110 and the second lens group 120 may each include multiple lenses, and the third lens group 130, the fourth lens group 140, and the fifth lens group 150 may each include one lens. In this embodiment, the number of lenses in the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 is not limited.

[0170] Regarding the method of changing the focal length of the first zoom lens group 21, the following is an illustrative example: the first zoom lens group 21 includes two lens groups, namely, the first zoom lens group 21 includes a first lens group 110 and a second lens group 120.

[0171] In some embodiments, the first lens group 110 has positive optical power, the second lens group 120 has positive optical power, and when the optical lens 11 is in the first state, as shown in FIG3, the first lens group 110 is located on the light-incident side of the first refractive element 31. When the optical lens 11 is in the second state, as shown in FIG4, the second lens group 120 is located on the light-incident side of the first refractive element 31.

[0172] To achieve different shooting scenarios, the optical lens 11 can have a telephoto end and a wide-angle end. Specifically, in either the first state or the second state of the optical lens 11, one is the wide-angle end and the other is the telephoto end. For example, the first state of the optical lens 11 is the wide-angle end, and the second state is the telephoto end. Alternatively, for example, the first state of the optical lens 11 is the telephoto end, and the second state is the wide-angle end. This embodiment does not limit the specific configuration; it can be reasonably set according to actual conditions. For ease of illustration, the following description uses the first state of the optical lens 11 as the wide-angle end and the second state as the telephoto end.

[0173] For example, during the zooming process of the optical lens 11 switching from the first state to the second state, as shown in Figures 3 and 4, the first zoom lens group 21 shown in Figure 3 is switched to the first zoom lens group 21 shown in Figure 4. That is, the second lens group 120 is moved to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the first lens group 110 is moved out from the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1.

[0174] Alternatively, for example, during the zooming process of the optical lens 11 switching from the second state to the first state, as shown in Figures 3 and 4, the first zoom lens group 21 shown in Figure 4 is switched to the first zoom lens group 21 shown in Figure 3, that is, the first lens group 110 is moved to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the second lens group 120 is moved out from the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1.

[0175] During the switching process from the first state to the second state, the lens group that was originally located in the optical path is moved out of the optical path, and the lens group that was not originally in the optical path is moved into the optical path. That is, the positions of the first lens group 110 and the second lens group 120 are interchanged.

[0176] As shown in Figure 3, the first lens group 110 is located on the optical path and on the light-incident side of the first refractive element 31, while the second lens group 120 is not located on the optical path and is located closer to the image side. In this case, the lens group not located on the optical path is positioned on one side of the second zoom lens group 22 and does not occupy the size of the optical lens 11. When either the first lens group 110 or the second lens group 120 is located on the light-incident side of the first refractive element 31, the first lens group 110 and the second lens group 120 do not overlap along the direction of the first optical axis a1.

[0177] For example, the optical power of the first lens group 110 is greater than that of the second lens group 120. That is, the focal length of the first lens group 110 is greater than that of the second lens group 120.

[0178] When the optical lens 11 switches from the wide-angle end to the telephoto end, the first zoom lens group 21 of the optical lens 11 switches from Figure 3 to Figure 4. When the optical lens 11 is at the wide-angle end (first state), the focal length of the optical lens 11 is fw, and the focal length of the first zoom lens group 21 (first lens group 110) located on the light-incident side of the first refractive element 31 is fw1. When the optical lens 11 is at the telephoto end (second state), the focal length of the optical lens 11 is ft, and the focal length of the first zoom lens group 21 (second lens group 120) located on the light-incident side of the first refractive element 31 is ft1. At this time, fw... <ft,fw1<ft1。

[0179] In other embodiments, the first lens group 110 has positive optical power, and the second lens group 120 has positive optical power. When the optical lens 11 is in the first state, as shown in FIG5, the first lens group 110 and the second lens group 120 are both located on the light-incident side of the first refractive element 31, and the first optical axis a1 and the second optical axis a2 coincide, that is, the first lens group 110 and the second lens group 120 are stacked on the light-incident side of the first refractive element 31.

[0180] When the optical lens 11 is in the second state, as shown in Figure 3, the first lens group 110 is located on the light-incident side of the first refracting element 31.

[0181] During the zooming process of the optical lens 11 switching from the first state to the second state, it is a process of switching from the first zoom lens group 21 shown in Figure 5 to the first zoom lens group 21 shown in Figure 3, and moving the second lens group 120 out of the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1.

[0182] During the zooming process of the optical lens 11 switching from the second state to the first state, it is a process of switching from the first zoom lens group 21 shown in Figure 3 to the first zoom lens group 21 shown in Figure 5. The second lens group 120 is moved to the light-incident side of the first refracting element 31 in a direction perpendicular to the first optical axis a1, so that the first optical axis a1 and the second optical axis a2 coincide.

[0183] In the above embodiments, the focal length of the optical lens 11 is changed by moving the lens group (e.g., the second lens group 120) into or out of the light-incident side of the first refracting element 31. For example, when the optical lens 11 is at the wide-angle end, the focal length of the first zoom lens group 21 (the focal length of the combination of the first lens group 110 and the second lens group 120) located on the light-incident side of the first refracting element 31 is ft1, and the focal length of the second lens group 120 is f11. At this time, the ratio of ft1 to f11 satisfies the condition: |f11 / ft1|≤28. For example, the absolute value of the ratio of f11 to ft1 can be 7, 9, 13, 16, 24, or 28, etc. In this way, by moving the lens group into the light-incident side of the first refracting element 31 to change the focal length of the optical lens 11, the focal length of the first zoom lens group 21 located on the light-incident side of the first refracting element 31 and the focal length of the lens group moved into the light-incident side of the first refracting element 31 when the optical lens 11 is at the telephoto end can be reasonably allocated. This changes the contribution of the first zoom lens group 21 on the light-incident side of the first refracting element 31 to the zoom ratio of the optical lens 11, thereby increasing the zoom ratio of the optical lens 11. For example, 9 ≤ |f11 / ft1| ≤ 25. In this way, the contribution of the first zoom lens group 21 on the light-incident side of the first refracting element 31 to the zoom ratio of the optical lens 11 can be further changed, further increasing the zoom ratio of the optical lens 11.

[0184] When the optical lens 11 is at its telephoto end, the focal length of the first zoom lens group 21 (the focal length of the combination of the first lens group 110 and the second lens group 120) located on the light-incident side of the first refractive element 31 is fw1, and the focal length of the second lens group 120 is f11. At this time, the ratio of fw1 to f11 satisfies the condition: |f11 / fw1|≤30. For example, the absolute value of the ratio of f11 to fw1 can be 8, 9, 12, 15, 23, 27, or 30, etc. In this way, by moving the lens group into the light-incident side of the first refractive element 31, the focal length of the optical lens 11 is changed. This allows for a reasonable allocation of the focal length of the first zoom lens group 21 located on the light-incident side of the first refractive element 31, compared to the focal length of the lens group moved into the light-incident side of the first refractive element 31 when the optical lens 11 is at the wide-angle end. This alters the contribution of the first zoom lens group 21 on the light-incident side of the first refractive element 31 to the zoom ratio of the optical lens 11, thereby increasing the zoom ratio of the optical lens 11. For example, 10 ≤ |f11 / fw1| ≤ 26. This further alters the contribution of the first zoom lens group 21 on the light-incident side of the first refractive element 31 to the zoom ratio of the optical lens 11, further increasing the zoom ratio of the optical lens 11.

[0185] In some other embodiments, the first lens group 110 has negative optical power, and the second lens group 120 has positive optical power. When the optical lens 11 is in the first state, as shown in FIG4, the second lens group 120 is located on the light-incident side of the first refractive element 31.

[0186] When the optical lens 11 is in the second state, as shown in Figure 5, the first lens group 110 and the second lens group 120 are both located on the light-incident side of the first refracting element 31.

[0187] During the zooming process of the optical lens 11 switching from the first state to the second state, it is a process of switching from the first zoom lens group 21 shown in Figure 4 to the first zoom lens group 21 shown in Figure 5. The first lens group 110 is moved to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, so that the first optical axis a1 and the second optical axis a2 coincide.

[0188] During the zooming process of the optical lens 11 switching from the second state to the first state, it is a process of switching from the first zoom lens group 21 shown in Figure 5 to the first zoom lens group 21 shown in Figure 4, and moving the first lens group 110 out of the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1.

[0189] In the above embodiments, the focal length of the optical lens 11 is changed by moving the lens group (e.g., the first lens group 110) into or out of the light-incident side of the first refracting element 31. For example, when the optical lens 11 is at the wide-angle end, the focal length of the first zoom lens group 21 (the focal length of the combination of the first lens group 110 and the second lens group 120) located on the light-incident side of the first refracting element 31 is ft1, and the focal length of the first lens group 110 is f11. At this time, the ratio of ft1 to f11 satisfies the condition: |f11 / ft1|≤28. For example, 9≤|f11 / ft1|≤25. When the optical lens 11 is at the telephoto end, the focal length of the first zoom lens group 21 (the focal length of the combination of the first lens group 110 and the second lens group 120) located on the light-incident side of the first refracting element 31 is fw1, and the focal length of the second lens group 120 is f11. At this point, the ratio of fw1 to f11 satisfies the condition: |f11 / fw1|≤30. For example, 10≤|f11 / fw1|≤26. In this way, the contribution of the first zoom lens group 21 on the light-incident side of the first refracting element 31 to the zoom ratio of the optical lens 11 can be further changed, thereby further increasing the zoom ratio of the optical lens 11.

[0190] Regarding the movement of the lens groups in the second zoom lens group 22, an example is provided where the second zoom lens group 22 comprises three lens groups: a third lens group 130, a fourth lens group 140, and a fifth lens group 150. The fourth lens group 140, the fifth lens group 150, and the third lens group 130 are arranged sequentially from the object side to the image side. For example, the third lens group 130 has negative optical power, the fourth lens group 140 has negative optical power, and the fifth lens group 150 has positive optical power.

[0191] In some embodiments, as shown in FIG6A, when the optical lens 11 is in the first state, there is a first distance d1 between the fourth lens group 140 and the fifth lens group 150, and a second distance d2 between the fifth lens 150 and the third lens 130.

[0192] As shown in Figure 6B, when the optical lens 11 is in the second state, there is a third distance d31 between the fourth lens group 140 and the fifth lens group 150, and a fourth distance d41 between the fifth lens 150 and the third lens 130.

[0193] As shown in Figures 6A and 6B, the first distance d1 is greater than the third distance d31, and the second distance d2 is greater than the fourth distance d41.

[0194] During the zooming process of the optical lens 11 switching from the first state to the second state, the fifth lens group 150 and the third lens group 130 move along the third optical axis a3 towards the first refractive element 31. For example, the fifth lens group 150 and the third lens group 130 move towards the object side along the third optical axis a3. The distance moved by the fifth lens group 150 is less than the distance moved by the third lens group 130. At this time, the position of the fourth lens group 140 remains unchanged.

[0195] It is clarified here that the position of the fourth lens group 140 can remain unchanged, or the fourth lens group can also move along the third optical axis a3 toward the image side or the object side, which is not limited in this embodiment.

[0196] During the zooming process of the optical lens 11 switching from the second state to the first state, the fifth lens group 150 and the third lens group 130 move away from the first refractive element 31 along the third optical axis a3. The distance that the fifth lens group 150 moves is less than the distance that the third lens group 130 moves.

[0197] It should be noted here that, as shown in Figures 6A and 6B, during the zooming process of the optical lens 11 switching from the first state to the second state, the first zoom lens group 21 located on the light-incident side of the first refracting element 31 is also moved.

[0198] In some other embodiments, as shown in FIG6A, when the optical lens 11 is in the first state, there is a first distance d1 between the fourth lens group 140 and the fifth lens group 150, and a second distance d2 between the fifth lens 150 and the third lens 130.

[0199] As shown in Figure 6C, when the optical lens 11 is in the second state, there is a third distance d32 between the fourth lens group 140 and the fifth lens group 150, and a fourth distance d42 between the fifth lens 150 and the third lens 130.

[0200] For example, as shown in Figures 6A and 6C, the first distance d1 is greater than the third distance d32, and the second distance d2 is less than the fourth distance d42.

[0201] During the zooming process of the optical lens 11 switching from the first state to the second state, the fifth lens group 150 and the third lens group 130 move along the third optical axis a3 toward the direction closer to the first refractive element 31, and the distance moved by the fifth lens group 150 is greater than the distance moved by the third lens group 130.

[0202] During the zooming process of the optical lens 11 switching from the second state to the first state, the fifth lens group 150 and the third lens group 130 move away from the first refracting element 31 along the third optical axis a3, and the distance moved by the fifth lens group 150 is greater than the distance moved by the third lens group 130.

[0203] In this embodiment, the moving distance and direction of each lens group in the second zoom lens group 22 are not limited; they can be set reasonably according to the actual situation.

[0204] For example, during the zooming process of optical lens 11 switching from the first state to the second state, the moving distance of the fifth lens group 150 is d5, and the moving distance of the third lens group 130 is d3. The maximum value between the moving distance d5 of the fifth lens group 150 and the moving distance d3 of the third lens group is dm, that is, dm is the moving distance of the lens group with the largest moving distance in the second zoom lens group 22. The imaging target surface size of optical lens 11 is IH. At this time, the ratio of dm to IH satisfies the condition: dm / IH≥0.4. For example, the ratio of dm to IH is 0.4, 0.5, 0.7, or 0.8, etc. In this way, by controlling the relationship between the maximum moving distance dm of the lens group in the second zoom lens group 22 and the imaging target surface size IH, the zoom ratio of optical lens 11 can be effectively increased, so that optical lens 11 can achieve high-quality imaging. For example, 0.4≤dm / IH≤0.8. This allows for a further increase in the zoom ratio of the optical lens 11, resulting in better performance and image quality.

[0205] For example, the sum of the moving distances of the lens groups in the second zoom lens group 22 along the same direction is ∑m, where ∑m ≥ 10mm. For instance, the sum of the moving distance d5 of the fifth lens group 150 and the moving distance d3 of the third lens group, ∑m, is greater than or equal to 10mm, i.e., the sum of d5 and d3 is greater than or equal to 10mm. For example, the sum of the moving distance d5 of the fifth lens group 150 and the moving distance d3 of the third lens group can be 10mm, 13mm, 17mm, 19mm, or 21mm, etc. In this way, by controlling the moving distance of the lens groups in the second zoom lens group 22, it is beneficial to miniaturize the optical lens 11. For example, 10mm ≤ ∑m ≤ 20mm. This further achieves miniaturization of the optical lens 11.

[0206] For example, the moving distance of the lens group with the largest moving distance in the second zoom lens group 22 is dm, where dm satisfies: 5mm ≤ dm ≤ 15mm. In this way, by controlling the moving distance of the lens group in the second zoom lens group 22, the zoom ratio of the optical lens 11 is increased, which is beneficial for the miniaturization of the optical lens 11. For example, 6mm ≤ dm ≤ 10mm. This further increases the zoom ratio of the optical lens 11, which is even more beneficial for the miniaturization of the optical lens 11.

[0207] For example, the focal length of the lens group furthest from the first refractive element 31 in the second zoom lens group 22 is f22, that is, the focal length of the third lens group 130 is f22. When the optical lens 11 is at the telephoto end, the focal length of the optical lens 11 is ft. At this time, the ratio of f22 to ft satisfies the condition: 2≤|ft / f22|≤8. For example, the ratio of ft to f22 is -2, -4, -5, -7, or -8, etc. In this way, by reasonably allocating the focal length of the lens group furthest from the first refractive element 31 in the second zoom lens group 22 and the focal length of the optical lens 11 when it is at the telephoto end, the optical power of the lens group furthest from the first refractive element 31 in the second zoom lens group 22 can be reasonably controlled, which is beneficial to increasing the target surface of the optical lens 11. For example, 3≤|ft / f22|≤6. In this way, it is more beneficial to increase the target surface of the optical lens 11, which can improve the performance of the optical lens 11.

[0208] When the optical lens 11 is at its wide-angle end, its focal length is fw. At this time, the ratio of f22 to fw satisfies the condition: 1 ≤ |fw / f22| ≤ 4. For example, the ratio of fw to f22 can be -1, -2, -3, or -4. In this way, by rationally allocating the focal length of the lens group furthest from the first refractive element 31 in the second zoom lens group 22 and the focal length of the optical lens 11 at its wide-angle end, the optical power of the lens group furthest from the first refractive element 31 in the second zoom lens group 22 can be reasonably controlled, thereby increasing the target surface area of ​​the optical lens 11. For example, 1.5 ≤ |fw / f22| ≤ 2.4. This further increases the target surface area of ​​the optical lens 11, resulting in better performance of the optical lens 11.

[0209] In this embodiment of the application, as shown in FIG7A, the first zoom lens group 21 is used to transmit light to the first refracting element 31. The first refracting element 31 is used to refract and reflect the light from the first zoom lens group 21 to the second zoom lens group 22. The second zoom lens group 22 is used to transmit the light from the first refracting element 31 to the second refracting element 32. The second refracting element 32 is used to refract and output the light from the second zoom lens group 22.

[0210] Regarding the first refracting element 31, exemplarily, the first refracting element 31 is used to change the transmission path of light. For example, as shown in FIG7A, light is incident on the first refracting element 31 in a direction parallel to the second optical axis a2, and after being refracted by the first refracting element 31, it exits in a direction parallel to the third optical axis a3, so that the light is incident on the second zoom lens group 22 in a direction parallel to the third optical axis a3. The first refracting element 31 is disposed on the light-incident side of the second zoom lens group 22, and the first refracting element 31 is disposed on the light-exit side of the first zoom lens group 21.

[0211] The first refractive element 31 may include a prism, a mirror, or a Schmidt prism. For example, the prism may include any one of the following: a right-angle prism, a triangular prism, a square prism, or a pentaangular prism.

[0212] For example, as shown in FIG7A, the first refracting element 31 may include a first surface 311, a second surface 312, and a third surface 313. The first surface 311 is disposed opposite to the first zoom lens group 21, and the third surface 313 is disposed opposite to the second zoom lens group 22. For example, if the first refracting element 31 is a right-angle prism, the first surface 311 and the third surface 313 are the two right-angled sides of the right-angle prism, and the second surface 312 is the hypotenuse of the right-angle prism.

[0213] In this design, the second surface 312 is a reflective surface, while the first surface 311 and the third surface 313 are transmissive surfaces. After being transmitted through the first surface 311, incident light rays can be deflected at the second surface 312 and then exit through the third surface 313. For example, when incident light rays from the subject enter the first refracting element 31, the incident light rays can be deflected at 90° at the second surface 312, and the deflected incident light rays can reach the photosensitive element 12 through the second zoom lens group 22. By setting the first refracting element 31, it is beneficial to avoid the second zoom lens group 22 from stacking in the direction parallel to the object plane, thereby helping to reduce the size of the optical lens 11 in the direction parallel to the object plane.

[0214] As shown in Figure 7A, the lens group that is not in the optical path in the first zoom lens group 21 (the first lens group 110 in Figure 7A) is located on the same side of the first refracting element 31 as the second zoom lens group 22.

[0215] In this way, the unused lens group in the first zoom lens group 21 will not occupy the size of the optical lens 11 along the third optical axis a3, thus reducing the size of the optical lens 11.

[0216] In some embodiments, as shown in FIG7A, the optical lens 11 further includes a second refracting element 32. The second refracting element 32 is disposed on the light-emitting side of the second zoom lens group 22, that is, the second refracting element 32 is disposed on the image side of the second zoom lens group 22.

[0217] The second refracting element 32 is used to change the transmission path of light. The direction in which light enters the second refracting element 32 is different from the direction in which light leaves the second refracting element 32. For example, as shown in FIG7A, the light emitted from the second zoom lens group 22 enters the second refracting element 32 in a direction parallel to the third optical axis a3, and after being refracted by the second refracting element 32, it exits in a direction intersecting the third optical axis a3 (for example, it can be a direction parallel to the first optical axis a1).

[0218] As exemplarily shown in FIG7A, a photosensitive element 12 and a filter 13 are also provided on the light-emitting side of the optical lens 11. In some embodiments, the photosensitive element 12 and the filter 13 may be integrated into the optical lens 11. This application embodiment does not limit this, and can be reasonably set according to the actual situation.

[0219] The second refractive element 32 may include a prism, a mirror, or a Schmidt prism. For example, the prism may include any one of the following: a right-angle prism, a triangular prism, a square prism, or a pentaangular prism.

[0220] For example, as shown in FIG7A, the second refracting element 32 may include a first surface 321, a second surface 322, and a third surface 323. The first surface 321 is disposed opposite to the second zoom lens group 22, and the third surface 323 is disposed opposite to the photosensitive element 12. For example, if the second refracting element 32 is a right-angle prism, the first surface 321 and the third surface 323 are the two right-angled sides of the right-angle prism, and the second surface 322 is the hypotenuse of the right-angle prism.

[0221] In this design, the second surface 322 is a reflective surface, while the first surface 321 and the third surface 323 are transmissive surfaces. After being transmitted through the first surface 321, the incident light can be deflected at the second surface 322 and then exit through the third surface 323. For example, when the incident light from the subject enters the second refractive element 32, the incident light can be deflected at 90° at the second surface 322, and the deflected incident light can reach the photosensitive element 12.

[0222] With the above configuration, the photosensitive element 12 can be arranged parallel to the object plane, and even when the size of the photosensitive element 12 is large, it does not affect the thickness of the electronic device 1. In other words, the size of the photosensitive element 12 is no longer limited by the thickness of the electronic device 1, thus allowing for the setting of a larger photosensitive element 12, which is beneficial to improving image quality.

[0223] Alternatively, for example, the second refracting element 32 may include multiple reflective surfaces. As shown in FIG7B, the second refracting element 32 may include two reflective surfaces. For example, both the second surface 322 and the third surface 323 of the second refracting element 32 are reflective surfaces. The second surface 322 is configured to transmit light with an angle smaller than a preset angle and reflect light with an angle greater than or equal to the preset angle. This application embodiment does not limit the preset angle and can be reasonably set according to the actual situation. In this case, the photosensitive element 12 is disposed on the light-emitting side of the second surface 322, which can reduce the size of the optical lens 11. The two reflective surfaces, namely the second surface 322 and the third surface 323, have an angle between them facing the second zoom lens group 22. In this way, when the incident light of the subject enters the second refracting element 32, the incident light is deflected at the second surface 322, and the deflected light is deflected again by the third surface 323, and then transmitted to the second surface 322, and after being transmitted by the second surface 322, it reaches the photosensitive element 12.

[0224] In this way, the second refracting element 32 can bend the light path from the second zoom lens group 22 multiple times, which is beneficial to further reduce the size of the optical lens 11.

[0225] For example, the distance d1 between the first refracting element 31 and the second refracting element 32 is less than or equal to 30mm. For instance, d1 can be 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, or 30mm, etc. In this way, by controlling the distance between the first refracting element 31 and the second refracting element 32, the size of the optical lens 11 can be reasonably controlled, which is beneficial for miniaturization of the optical lens 11. For example, 20mm ≤ d1 ≤ 25mm. This is even more conducive to the miniaturization of the optical lens 11.

[0226] For example, the distance between the first refractive element 31 and the second refractive element 32 is d1, and the imaging target surface size of the optical lens 11 is IH. In this case, the ratio of d1 to IH satisfies the relationship: d1 / IH ≤ 2.5. For example, the ratio of d1 to IH can be 1, 1.5, 1.7, 1.8, or 2. In this way, by controlling the imaging target surface size and the distance between the first refractive element 31 and the second refractive element 32, the size of the optical lens 11 can be reasonably controlled, which is beneficial for miniaturization of the optical lens 11. For example, 1.5 ≤ d1 / IH ≤ 1.8. This further facilitates the miniaturization of the optical lens 11.

[0227] For example, the maximum distance the third lens group 130 can move is dm, and the distance between the first refractive element 31 and the second refractive element 32 is d1. In this case, the ratio of dm to d1 satisfies the condition: 0.25 ≤ dm / d1 ≤ 0.9. For example, the ratio of dm to d1 can be 0.25, 0.31, or 0.4, etc. In this way, moving the third lens group 130 changes its position between the first refractive element 31 and the second refractive element 32, thereby changing the focal length of the optical lens 11. By reasonably allocating the maximum distance the third lens group 130 can move and the distance between the first refractive element 31 and the second refractive element 32, the moving distance of each lens group in the second zoom lens group 22 can be effectively controlled, thereby controlling the zoom ratio of the optical lens 11, which is beneficial for changing the focal length of the optical lens 11. For example, 0.3 ≤ dm / d1 ≤ 0.45. This allows for more effective control over the zoom ratio of the optical lens 11, and makes it easier to change the focal length of the optical lens 11.

[0228] In this embodiment, the concave and convex shapes of the image side and object side of each lens in the lens group are not limited. The part of the image side of the lens that corresponds to the optical axis can be convex or concave. The part of the object side of the lens that corresponds to the optical axis can be convex or concave. The specific shape can be selected and set according to the actual lens matching requirements.

[0229] It should be clarified here that the convex or concave surfaces mentioned in the embodiments of this application refer to those that are convex or concave near the optical axis. It should be noted that "convex or concave near the optical axis" refers to whether the surface is convex or concave at a position infinitely close to the optical axis of the lens. That is, "paraxial" refers to a position infinitely close to the optical axis. It should also be noted that the shape of the lens and the degree of convexity or concavity of the object-side and image-side surfaces are merely illustrative and do not impose any limitations on the embodiments of this application. The embodiments of this application do not impose any limitations on the convexity or concavity of the portions of the object-side and image-side surfaces away from the optical axis. For example, a positive radius of curvature of the object-side surface indicates that the surface shape is convex, and a negative radius of curvature indicates that the surface shape is concave. Similarly, a positive radius of curvature of the image-side surface indicates that the surface shape is concave, and a negative radius of curvature indicates that the surface shape is convex.

[0230] In this embodiment, the molding material of each lens in the lens assembly is not limited. For example, the molding material of the lens can be plastic or glass, which helps to reduce the cost of the optical lens 11 and has high design flexibility, making it easy to promote and realize in production.

[0231] In this embodiment, the shape of each lens in the lens group is not limited. For example, the shape of the lens can be circular or elliptical, which has a wide range of applications and is easy to manufacture.

[0232] In this embodiment of the application, during the transition of the optical lens 11 between the first state and the second state, the movement trajectory of the lenses in the lens group is not restricted. For example, the lenses in the lens group can move in a straight line along the optical axis, or the lenses in the lens group can rotate around the optical axis while moving relative to each other along the optical axis.

[0233] In this embodiment, when the lens group includes multiple lenses, the movement of all lenses in the lens group is not limited during the transition between the first and second states of the optical lens 11. For example, the optical lens 11 may also include a moving device, and all lenses in the lens group can be treated as a whole, with the moving device driving the entire lens group to move together along the optical axis.

[0234] In some embodiments, when the optical lens 11 is at the telephoto end, the focal length of the optical lens 11 is ft. When the optical lens 11 is at the wide-angle end, the focal length of the optical lens 11 is fw. At this time, the ratio of ft to fw satisfies the conditional expression: 1 < ft / fw ≤ 4. For example, the ratio of ft to fw can be 1.5, 2, 3, or 4. In this way, by reasonably allocating the focal lengths of the optical lens 11 at the telephoto end and the wide-angle end, the application scenarios of the optical lens 11 can be increased, making the optical lens 11 more widely applicable.

[0235] Exemplarily, the ratio of ft to fw satisfies the conditional expression: 1.5 ≤ ft / fw ≤ 2.5. For example, the ratio of ft to fw can be 1.5, 2, or 2.5, etc. In this way, the performance of the optical lens 11 can be better and the imaging quality can be better.

[0236] Exemplarily, when the optical lens 11 is at the wide-angle end, the focal length of the optical lens 11 is fw, and fw satisfies: 15 mm ≤ fw ≤ 30 mm. In this way, by controlling the focal length of the optical lens 11 at the wide-angle end, the contribution of the wide-angle end focal length of the first zoom lens group 21 located on the light incident side of the first refractive member 31 can be effectively controlled, thereby expanding the shooting range of the optical lens 11. Exemplarily, 19 mm ≤ fw ≤ 26 mm. In this way, the shooting range of the optical lens 11 can be further expanded.

[0237] Exemplarily, when the optical lens 11 is at the telephoto end, the focal length of the optical lens 11 is ft, and ft satisfies: 35 mm ≤ ft ≤ 55 mm. In this way, by controlling the focal length of the optical lens 11 at the telephoto end, the contribution of the first zoom lens group 21 located on the light incident side of the first refractive member 31 to the telephoto end focal length of the optical lens 11 can be effectively controlled, thereby expanding the shooting range of the optical lens 11. Exemplarily, 41 mm ≤ ft ≤ 48.5 mm. In this way, the shooting range of the optical lens 11 is further expanded.

[0238] In some embodiments, when the optical lens 11 is at the telephoto end, the focal length of the first zoom lens group 21 located on the incident light side of the first refractive member 31 is ft1. When the optical lens 11 is at the wide-angle end, the focal length of the first zoom lens group 21 located on the incident light side of the first refractive member 31 is fw1. At this time, the ratio of ft1 to fw1 satisfies the conditional formula: 1 < ft1 / fw1 ≤ 1.5. For example, the ratio of ft1 to fw1 can be 1.1, 1.3, or 1.5, etc. In this way, by reasonably allocating the focal lengths of the first zoom lens group 21 located on the incident light side of the first refractive member 31 when the optical lens 11 is at the telephoto end and the wide-angle end, the contribution of the first zoom lens group 21 on the incident light side of the first refractive member 31 to the zoom ratio of the optical lens 11 can be changed, and the zoom ratio of the optical lens 11 can be increased. Exemplarily, 1 < ft1 / fw1 ≤ 1.3. In this way, the shooting range of the optical lens 11 can be further expanded, and thus the zoom ratio of the optical lens 11 can be increased.

[0239] Exemplarily, when the optical lens 11 is at the wide-angle end, the focal length of the first zoom lens group 21 located on the incident light side of the first refractive member 31 is fw1, and fw1 satisfies: 15 mm ≤ fw1 ≤ 30 mm. In this way, by controlling the focal length of the first zoom lens group 21 located on the incident light side of the first refractive member 31 when the optical lens 11 is at the wide-angle end, the contribution of the first zoom lens group 21 on the incident light side of the first refractive member 31 to the focal length of the wide-angle end of the optical lens 11 can be effectively controlled, and thus the shooting range of the optical lens 11 can be expanded, and the zoom ratio of the optical lens 11 can be increased. Exemplarily, 19 mm < fw1 ≤ 24 mm. In this way, the shooting range of the optical lens 11 can be further expanded, and thus the zoom ratio of the optical lens 11 can be increased.

[0240] Exemplarily, when the optical lens 11 is at the telephoto end, the focal length of the first zoom lens group 21 located on the incident light side of the first refractive member 31 is ft1, and ft1 satisfies: 15 mm ≤ ft1 ≤ 30 mm. In this way, by controlling the focal length of the first zoom lens group 21 located on the incident light side of the first refractive member 31 when the optical lens 11 is at the telephoto end, the contribution of the first zoom lens group 21 on the incident light side of the first refractive member 31 to the focal length of the telephoto end of the optical lens 11 can be effectively controlled, and thus the shooting range of the optical lens can be expanded, and the zoom ratio of the optical lens 11 can be increased. Exemplarily, 20 mm ≤ ft1 ≤ 27 mm. In this way, the shooting range of the optical lens 11 can be further expanded, and thus the zoom ratio of the optical lens 11 can be increased.

[0241] In some embodiments, when the optical lens 11 is at the telephoto end, the cascaded magnification of the second zoom lens group 22 to the first zoom lens group 21 located on the light-incident side of the first refractive element 31 is Mt. When the optical lens 11 is at the wide-angle end, the cascaded magnification of the second zoom lens group 22 to the first zoom lens group 21 located on the light-incident side of the first refractive element 31 is Mw. In this case, the ratio of Mt to Mw satisfies the condition: 1.5 ≤ Mt / Mw ≤ 3.5. For example, the ratio of Mt to Mw can be 1.5, 2, 3, or 3.5, etc. Thus, by reasonably allocating the cascaded magnification of the optical lens 11 when it is at the telephoto and wide-angle ends, the contribution of the second zoom lens group 22 to the zoom ratio of the optical lens 11 can be changed, increasing the zoom ratio of the optical lens 11. For example, 1.6 ≤ Mt / Mw ≤ 2.3. This further increases the zoom ratio of the optical lens 11.

[0242] For example, when the optical lens 11 is at the wide-angle end, the cascaded magnification of the second zoom lens group 22 to the first zoom lens group 21 located on the light-incident side of the first refractive element 31 is Mw, where Mw satisfies: 0.5 ≤ Mw ≤ 1.5. In this way, by controlling the cascaded magnification of the optical lens 11 when it is at the wide-angle end, the contribution of the second zoom lens group 22 to the focal length of the optical lens 11 can be effectively controlled, which is beneficial for controlling the focal length at the wide-angle end. For example, 0.8 ≤ Mw ≤ 1.3. This allows for more effective control of the contribution of the second zoom lens group 22 to the focal length of the optical lens 11, which is beneficial for controlling the focal length at the wide-angle end.

[0243] For example, when the optical lens 11 is at the telephoto end, the cascaded magnification of the second zoom lens group 22 to the first zoom lens group 21 located on the light-incident side of the first refractive element 31 is Mt, where Mt satisfies: 1.2 ≤ Mt ≤ 2.8. In this way, by controlling the cascaded magnification of the optical lens 11 when it is at the telephoto end, the contribution of the second zoom lens group 22 to the focal length of the optical lens 11 can be effectively controlled, which is beneficial for controlling the focal length at the telephoto end. For example, 1.5 ≤ Mt ≤ 2.4. This allows for more effective control of the contribution of the second zoom lens group 22 to the focal length of the optical lens 11, which is beneficial for controlling the focal length at the telephoto end.

[0244] In some embodiments, the total optical length of the optical lens 11 is TTL, the imaging target size of the optical lens 11 is IH, the field of view of the optical lens 11 at the wide-angle end is FOVw, and the field of view of the optical lens 11 at the telephoto end is FOVt. In this case, TTL, IH, FOVw, and FOVt satisfy the condition: (TTL / IH)×(FOVt / FOVw)≤2.5. For example, (TTL / IH)×(FOVt / FOVw) can be 1, 1.4, 1.6, 1.8, 1.9, 2.1, 2.4, or 2.5, etc. In this way, by reasonably allocating the field of view of the optical lens 11 at the wide-angle and telephoto ends, and the relationship between the total optical length and the target size, a smaller total optical length and a larger imaging target size can be achieved for the optical lens 11, which is beneficial to improving the competitiveness of the optical lens 11. For example, 1.4 ≤ (TTL / IH) × (FOVt / FOVw) ≤ 2. This makes it easier to miniaturize the optical lens 11 and improve its competitiveness.

[0245] For example, the total optical length (TTL) of the optical lens 11 satisfies: TTL ≤ 51mm. This allows for miniaturization of the optical lens 11 by controlling its total optical length. For example, 40mm ≤ TTL ≤ 47mm. This further facilitates miniaturization of the optical lens 11.

[0246] The optical lens 11 provided in this embodiment can effectively control the contribution of the first zoom lens group 21 and the second zoom lens group 22 to the zoom ratio of the optical lens 11 by changing the optical power of the lens group in the first zoom lens group 21 on the light-incident side of the first refracting element 31 and by moving at least one of the lens groups in the second zoom lens group 22, thereby changing the focal length of the optical lens 11 and achieving a large zoom ratio. Furthermore, by controlling whether at least a portion of the lens group in the first zoom lens group 21 is positioned on the optical path and by controlling the movement of at least a portion of the lens group in the second zoom lens group 22 along the optical axis, the zoom ratio of the optical lens 11 can be increased, enabling the optical lens 11 to meet different shooting scenarios and needs, thus increasing the applicability of the optical lens 11. The optical lens 11 provided in this application embodiment can change the focal length of the optical lens 11 by cutting into or out of the optical path of at least one of the first lens group 110 and the second lens group 120 in the first zoom lens group 21, and by moving at least the third lens group 130 in the second zoom lens group 22, thereby achieving a large zoom ratio.

[0247] The optical lens 11 provided in this application embodiment can effectively utilize space, has a small size, high zoom color consistency, and low cost, thus improving optical competitiveness. Furthermore, the solution provided in this application embodiment is simple and has low complexity.

[0248] The structure and performance of the optical lens 11 provided in this application will be described below with reference to specific embodiments. It should be noted that the first refracting element 31 and the second refracting element 32 in the figures are only schematic diagrams of a simulated structure and do not show the specific optical path folding path. The optical path folding path is consistent with the specific description of the optical lens 11 above.

[0249] Example 1

[0250] In this embodiment of the application, as shown in Figures 8A and 8B, the first zoom lens group 21 includes a first lens group 110 and a second lens group 120. The first lens group 110 includes a first lens 101, and the second lens group 120 includes a second lens 102. The second zoom lens group 22 includes a third lens group 130, a fourth lens group 140, and a fifth lens group 150. The fourth lens group 140, the fifth lens group 150, and the third lens group 130 are arranged sequentially from the object side to the image side. The fourth lens group 140 includes a third lens 103 and a fourth lens 104 arranged sequentially from the object side to the image side. The fifth lens group 150 includes a fifth lens 105, a sixth lens 106, a seventh lens 107, and an eighth lens 108 arranged sequentially from the object side to the image side. The third lens group 130 includes a ninth lens 109, a tenth lens 1010, and an eleventh lens 1011 arranged sequentially from the object side to the image side.

[0251] When the optical lens 11 is in the wide-angle end state, as shown in Figure 8A, both the first lens group 110 and the second lens group 120 are located on the light-incident side of the first refractive element 31, and the first lens group 110 is located on the light-incident side of the second lens group 120. When the optical lens 11 is in the telephoto end state, as shown in Figure 8B, the second lens group 120 is located on the light-incident side of the first refractive element 31, and the first lens group 110 is not located on the light-incident side of the first refractive element 31.

[0252] For example, the first lens group 110 has positive optical power, the second lens group 120 has positive optical power, the fourth lens group has negative optical power, the fifth lens group 150 has positive optical power, and the third lens group 130 has negative optical power.

[0253] As shown in Figures 8A and 8B, when the optical lens 11 switches from the wide-angle end to the telephoto end, the first lens group 110 moves out of the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the fifth lens group 150 and the third lens group 130 move towards the object side along the third optical axis a3. When the optical lens 11 switches from the telephoto end to the wide-angle end, the first lens group 110 moves to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the fifth lens group 150 and the third lens group 130 move towards the image side along the third optical axis a3.

[0254] Table 1.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 1 of this application.

[0255] Table 1.1

[0256] Wherein, G1 is the first lens 101, G2 is the second lens 102, G3 is the third lens 103, G4 is the fourth lens 104, G5 is the fifth lens 105, G6 is the sixth lens 106, G7 is the seventh lens 107, G8 is the eighth lens 108, G9 is the ninth lens 109, G10 is the tenth lens 1010, G11 is the eleventh lens 1011, A1 is the first refractive element 31, and A2 is the second refractive element 32.

[0257] S11 and S12 are the object-side and image-side surfaces of the first lens 101, respectively; S21 and S22 are the object-side and image-side surfaces of the second lens 102, respectively; S31 and S32 are the object-side and image-side surfaces of the third lens 103, respectively; S41 and S42 are the object-side and image-side surfaces of the fourth lens 104, respectively; S51 and S52 are the object-side and image-side surfaces of the fifth lens 105, respectively; S61 and S62 are the object-side and image-side surfaces of the sixth lens 106, respectively; S71 and S72 are the object-side and image-side surfaces of the seventh lens 107, respectively; S81 and S82 are the object-side and image-side surfaces of the eighth lens 108, respectively; S91 and S92 are the object-side and image-side surfaces of the ninth lens 109, respectively; S101 and S102 are the object-side and image-side surfaces of the tenth lens 1010, respectively; and S111 and S112 are the object-side and image-side surfaces of the eleventh lens 1011, respectively. S1 and S2 are the object side and image side of the first refracting element 31, respectively; S3 and S4 are the object side and image side of the second refracting element 32, respectively; and S5 and S6 are the object side and image side of the filter 13, respectively.

[0258] In Table 1.1, "-" indicates infinite curvature, meaning the surface is a plane. Thickness refers to the thickness of the optical element along the optical axis or the thickness of the air gap between optical elements. The thickness corresponding to the row containing the object side of the first lens 101 is the thickness of the first lens 101 along the optical axis; the thickness corresponding to the row containing the image side of the first lens 101 is the distance from the image side of the first lens 101 to the object side of the second lens 102 along the optical axis, and so on. P1 represents the thickness of the air gap between optical elements when the optical lens 11 is in the wide-angle state; P2 represents the thickness of the air gap between optical elements when the optical lens 11 is in the telephoto state.

[0259] Table 1.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 1 of this application.

[0260] Table 1.2

[0261] As shown in Table 1.2, all lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface shape Z of each lens in the optical lens 11 can be calculated by the following aspherical formula (1):

[0262] Wherein, parameter c = 1 / R, c is the spherical curvature of the vertex of the aspherical surface, R is the radius of curvature, r is the distance from a point on the optical surface to the optical axis, Z is the aspherical sag of the point along the optical axis, K is the conic coefficient of the surface, i is the aspherical coefficient term, and Ai represents the i-th order aspherical coefficient.

[0263] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 1.3 below.

[0264] Table 1.3 shows the optical parameters of an optical lens provided in Embodiment 1 of this application.

[0265] Table 1.3

[0266] In Embodiment 1 of this application, the ratio of ft to fw is 1.87, and the ratio of ft1 to fw1 is 1.10. Mt is 2.16, Mw is 1.27, and the ratio of Mt to Mw is 1.70. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 10.35, and the ratio of the focal length f11 to ft1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 9.39. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.38, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.64. The ratio of the focal length of ft to the third lens group 130 is -3.9829, and the ratio of fw to the focal length of the third lens group 130 is -2.13. The ratio of TTL to IH is 3.40, the ratio of FOVt to FOVw is 0.54, and (TTL / IH)×(FOVt / FOVw) is 1.82.

[0267] As shown in Figures 8C and 8D, Figure 8C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 8D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 8C and 8D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 8C and 8D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0268] Example 2

[0269] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. When the optical lens 11 is in the wide-angle end state, as shown in FIG9A, the second lens group 120 is located on the light-incident side of the first refractive element 31, and the first lens group 110 is not on the light-incident side of the first refractive element 31. When the optical lens 11 is in the telephoto end state, as shown in FIG9B, both the first lens group 110 and the second lens group 120 are located on the light-incident side of the first refractive element 31, and the first lens group 110 is located on the light-incident side of the second lens group 120.

[0270] The difference between Example 2 and Example 1 above is that:

[0271] For example, the first lens group 110 has negative optical power, the second lens group 120 has positive optical power, the fourth lens group has negative optical power, the fifth lens group 150 has positive optical power, and the third lens group has negative optical power.

[0272] As shown in Figures 9A and 9B, when the optical lens 11 switches from the wide-angle end to the telephoto end, the first lens group 110 is moved along a direction perpendicular to the first optical axis a1 to the light-incident side of the first refracting element 31, and the fifth lens group 150 and the third lens group 130 are moved along the third optical axis a3 towards the object side. When the optical lens 11 switches from the telephoto end to the wide-angle end, the first lens group 110 is moved away from the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the fifth lens group 150 and the third lens group 130 are moved along the third optical axis a3 towards the image side.

[0273] Table 2.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 2 of this application.

[0274] Table 2.1

[0275] The description of Table 2.1 is the same as the related description of Table 2.1. For details, please refer to the description of Table 1.1 in the above embodiment 1.

[0276] Table 2.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 2 of this application.

[0277] Table 2.2

[0278] As shown in Table 2.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0279] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 2.3 below.

[0280] Table 2.3 shows the optical parameters of an optical lens provided in Embodiment 2 of this application.

[0281] Table 2.3

[0282] In Embodiment 2 of this application, the ratio of ft to fw is 2.00, and the ratio of ft1 to fw1 is 1.09. Mt is 2.08, Mw is 1.13, and the ratio of Mt to Mw is 1.84. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is -11.58, and the ratio of the focal length f11 to ft1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is -10.63. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.38, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.64. The ratio of the focal length of ft to the third lens group 130 is -3.11, and the ratio of fw to the focal length of the third lens group 130 is -1.55. The ratio of TTL to IH is 3.45, the ratio of FOVt to FOVw is 0.49, and (TTL / IH)×(FOVt / FOVw) is 1.70.

[0283] As shown in Figures 9C and 9D, Figure 9C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 9D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 9C and 9D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 9C and 9D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0284] Example 3

[0285] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. When the optical lens 11 is in the wide-angle end state, as shown in FIG10A, both the first lens group 110 and the second lens group 120 are located on the light-incident side of the first refractive element 31, and the first lens group 110 is located on the light-incident side of the second lens group 120. When the optical lens 11 is in the telephoto end state, as shown in FIG10B, the first lens group 110 is located on the light-incident side of the first refractive element 31, and the second lens group 120 is not on the light-incident side of the first refractive element 31.

[0286] The difference between Example 3 and Example 1 above is that:

[0287] For example, the first lens group 110 has positive optical power, the second lens group 120 has positive optical power, the fourth lens group has positive optical power, the fifth lens group 150 has positive optical power, and the third lens group has negative optical power.

[0288] As shown in Figures 10A and 10B, when the optical lens 11 switches from the wide-angle end to the telephoto end, the second lens group 120 is moved out of the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the fifth lens group 150 and the third lens group 130 are moved towards the object side along the third optical axis a3. When the optical lens 11 switches from the telephoto end to the wide-angle end, the second lens group 120 is moved to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the fifth lens group 150 and the third lens group 130 are moved towards the image side along the third optical axis a3.

[0289] Table 3.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 3 of this application.

[0290] Table 3.1

[0291] The description of Table 2.1 is the same as the related description of Table 2.1. For details, please refer to the description of Table 1.1 in the above embodiment 1.

[0292] Table 3.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 3 of this application.

[0293] Table 3.2

[0294] As shown in Table 3.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0295] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 3.3 below.

[0296] Table 3.3 shows the optical parameters of an optical lens provided in Embodiment 3 of this application.

[0297] Table 3.3

[0298] In Embodiment 3 of this application, the ratio of ft to fw is 2.00, and the ratio of ft1 to fw1 is 1.08. Mt is 1.61, Mw is 0.87, and the ratio of Mt to Mw is 1.85. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 12.57, and the ratio of the focal length f11 to ft1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 11.65. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.31, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.48. The ratio of the focal length of ft to the third lens group 130 is -3.18, and the ratio of fw to the focal length of the third lens group 130 is -1.59. The ratio of TTL to IH is 3.32, the ratio of FOVt to FOVw is 0.49, and (TTL / IH)×(FOVt / FOVw) is 1.64.

[0299] As shown in Figures 10C and 10D, Figure 10C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 10D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 10C and 10D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 10C and 10D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0300] Example 4

[0301] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. When the optical lens 11 is in the wide-angle end state, as shown in FIG11A, the second lens group 120 is located on the light-incident side of the first refractive element 31. When the optical lens 11 is in the telephoto end state, as shown in FIG11B, the first lens group 110 is located on the light-incident side of the first refractive element 31.

[0302] The difference between Example 4 and Example 1 above is that:

[0303] As shown in Figures 11A and 11B, when the optical lens 11 switches from a wide-angle state to a telephoto state, the second lens group 120 moves out of the light-incident side of the first refracting element 31 along the first optical axis a1, and the first lens group 110 moves to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1. The fourth lens group 140 moves towards the image side along the third optical axis a3, and the fifth lens group 150 and the third lens group 130 move towards the object side along the third optical axis a3. When the optical lens 11 switches from a telephoto state to a wide-angle state, the first lens group 110 moves out of the light-incident side of the first refracting element 31 along the first optical axis a1, and the second lens group 120 moves to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1. The fourth lens group 140 moves towards the object side along the third optical axis a3, and the fifth lens group 150 and the third lens group 130 move towards the image side along the third optical axis a3.

[0304] Table 4.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 4 of this application.

[0305] Table 4.1

[0306] The description of Table 2.1 is the same as the related description of Table 1.1, and for details, please refer to the description of Table 1.1 in Embodiment 1 above.

[0307] Table 4.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 4 of this application.

[0308] Table 4.2

[0309] As shown in Table 4.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0310] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 4.3 below.

[0311] Table 4.3 shows the optical parameters of an optical lens provided in Embodiment 4 of this application.

[0312] Table 4.3

[0313] In Embodiment 4 of this application, the ratio of ft to fw is 2.00, and the ratio of ft1 to fw1 is 1.10. Mt is 1.82, Mw is 1.01, and the ratio of Mt to Mw is 1.81. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.33, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.52. The focal length ratio of ft to the third lens group 130 is -4.86, and the focal length ratio of fw to the third lens group 130 is -2.43. The ratio of TTL to IH is 3.31, the ratio of FOVt to FOVw is 0.49, and (TTL / IH)×(FOVt / FOVw) is 1.63.

[0314] As shown in Figures 11C and 11D, Figure 11C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 11D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 11C and 11D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 11C and 11D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0315] Example 5

[0316] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. When the optical lens 11 is in the wide-angle end state, as shown in FIG12A, the second lens group 120 is located on the light-incident side of the first refractive element 31. When the optical lens 11 is in the telephoto end state, as shown in FIG12B, the first lens group 110 is located on the light-incident side of the first refractive element 31.

[0317] The difference between Example 5 and Example 1 above is that:

[0318] As shown in Figures 12A and 12B, when the optical lens 11 switches from a wide-angle state to a telephoto state, the second lens group 120 moves out of the light-incident side of the first refracting element 31 along the first optical axis a1, the first lens group 110 moves to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the fifth lens group 150 and the third lens group 130 move towards the object side along the third optical axis a3. When the optical lens 11 switches from a telephoto state to a wide-angle state, the second lens group 120 moves to the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, the first lens group 110 moves out of the light-incident side of the first refracting element 31 along a direction perpendicular to the first optical axis a1, and the fifth lens group 150 and the third lens group 130 move towards the image side along the third optical axis a3.

[0319] Table 5.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 5 of this application.

[0320] Table 5.1

[0321] The description of Table 2.1 is the same as the related description of Table 2.1. For details, please refer to the description of Table 1.1 in the above embodiment 1.

[0322] Table 5.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 5 of this application.

[0323] Table 5.2

[0324] As shown in Table 5.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0325] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 5.3 below.

[0326] Table 5.3 shows the optical parameters of an optical lens provided in Embodiment 5 of this application.

[0327] Table 5.3

[0328] In Embodiment 5 of this application, the ratio of ft to fw is 2.16, and the ratio of ft1 to fw1 is 1.26. Mt is 1.76, Mw is 1.03, and the ratio of Mt to Mw is 1.72. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is -11.58. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.38, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.67. The ratio of the focal length of ft to the third lens group 130 is -4.82, and the ratio of fw to the focal length of the third lens group 130 is -2.23. The ratio of TTL to IH is 3.29, the ratio of FOVt to FOVw is 0.47, and (TTL / IH)×(FOVt / FOVw) is 1.55.

[0329] As shown in Figures 12C and 12D, Figure 12C is the modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 12D is the MTF curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 12C and 12D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 12C and 12D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0330] Example 6

[0331] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. When the optical lens 11 is in the wide-angle end state, as shown in FIG13A, both the first lens group 110 and the second lens group 120 are located on the light-incident side of the first refractive element 31, and the first lens group 110 is located on the light-incident side of the second lens group 120. When the optical lens 11 is in the telephoto end state, as shown in FIG13B, the second lens group 120 is located on the light-incident side of the first refractive element 31, and the first lens group 110 is not on the light-incident side of the first refractive element 31.

[0332] In Embodiment Six, the state switching of the optical lens 11 is the same as in Embodiment One. For details, please refer to the above description of the state switching of the optical lens 11 in Embodiment One.

[0333] Table 6.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 6 of this application.

[0334] Table 6.1

[0335] The description of Table 2.1 is the same as the related description of Table 2.1. For details, please refer to the description of Table 1.1 in the above embodiment 1.

[0336] Table 6.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 6 of this application.

[0337] Table 6.2

[0338] As shown in Table 6.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0339] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 6.3 below.

[0340] Table 6.3 shows the optical parameters of an optical lens provided in Embodiment Six of this application.

[0341] Table 6.3

[0342] In Embodiment Six of this application, the ratio of ft to fw is 2.3, and the ratio of ft1 to fw1 is 1.05. Mt is 1.05, Mw is 2.29, and the ratio of Mt to Mw is 2.19. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 25.75, and the ratio of the focal length f11 to ft1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 24.50. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.40, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.71. The ratio of the focal length of ft to the third lens group 130 is -5.18, and the ratio of fw to the focal length of the third lens group 130 is -2.25. The ratio of TTL to IH is 3.38, the ratio of FOVt to FOVw is 0.46, and (TTL / IH)×(FOVt / FOVw) is 1.56.

[0343] As shown in Figures 13C and 13D, Figure 13C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 13D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 13C and 13D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 13C and 13D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0344] Example 7

[0345] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. When the optical lens 11 is in the wide-angle end state, as shown in FIG14A, both the first lens group 110 and the second lens group 120 are located on the light-incident side of the first refractive element 31, and the first lens group 110 is located on the light-incident side of the second lens group 120. When the optical lens 11 is in the telephoto end state, as shown in FIG14B, the second lens group 120 is located on the light-incident side of the first refractive element 31, and the first lens group 110 is not on the light-incident side of the first refractive element 31.

[0346] In Embodiment 7, the state switching of the optical lens 11 is the same as in Embodiment 1 above. For details, please refer to the above description of the state switching of the optical lens 11 in Embodiment 1.

[0347] Table 7.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 7 of this application.

[0348] Table 7.1

[0349] The description of Table 2.1 is the same as the related description of Table 2.1. For details, please refer to the description of Table 1.1 in the above embodiment 1.

[0350] Table 7.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 7 of this application.

[0351] Table 7.2

[0352] As shown in Table 7.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0353] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 7.3 below.

[0354] Table 7.3 shows the optical parameters of an optical lens provided in Embodiment 7 of this application.

[0355] Table 7.3

[0356] In Embodiment Seven of this application, the ratio of ft to fw is 2.4, and the ratio of ft1 to fw1 is 1.07. Mt is 2.29, Mw is 1.02, and the ratio of Mt to Mw is 2.24. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 19.37, and the ratio of the focal length f11 to ft1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 18.10. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.41, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.73. The ratio of the focal length of ft to the third lens group 130 is -5.90, and the ratio of fw to the focal length of the third lens group 130 is -2.46. The ratio of TTL to IH is 3.39, the ratio of FOVt to FOVw is 0.45, and (TTL / IH)×(FOVt / FOVw) is 1.51.

[0357] As shown in Figures 14C and 14D, Figure 14C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 14D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 14C and 14D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 14C and 14D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0358] Example 8

[0359] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. As shown in Figures 15A and 15B, when the optical lens 11 is in the wide-angle end state, as shown in Figure 15A, both the first lens group 110 and the second lens group 120 are located on the light-incident side of the first refractive element 31, and the first lens group 110 is located on the light-incident side of the second lens group 120. When the optical lens 11 is in the telephoto end state, as shown in Figure 15B, the second lens group 120 is located on the light-incident side of the first refractive element 31, and the first lens group 110 is not on the light-incident side of the first refractive element 31.

[0360] In Embodiment Six, the state switching of the optical lens 11 is the same as in Embodiment One. For details, please refer to the above description of the state switching of the optical lens 11 in Embodiment One.

[0361] Table 8.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 8 of this application.

[0362] Table 8.1

[0363] The description of Table 2.1 is the same as the related description of Table 2.1. For details, please refer to the description of Table 1.1 in the above embodiment 1.

[0364] Table 8.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 8 of this application.

[0365] Table 8.2

[0366] As shown in Table 8.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0367] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 8.3 below.

[0368] Table 8.3 shows the optical parameters of an optical lens provided in Embodiment 8 of this application.

[0369] Table 8.3

[0370] In Embodiment 8 of this application, the ratio of ft to fw is 2.60, and the ratio of ft1 to fw1 is 1.08. Mt is 2.20, Mw is 0.92, and the ratio of Mt to Mw is 2.40. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 16.82, and the ratio of the focal length f11 to ft1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 15.5. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.42, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.76. The ratio of the focal length of ft to the third lens group 130 is -6.19, and the ratio of fw to the focal length of the third lens group 130 is -2.38. The ratio of TTL to IH is 3.42, the ratio of FOVt to FOVw is 0.42, and (TTL / IH)×(FOVt / FOVw) is 1.42.

[0371] As shown in Figures 15C and 15D, Figure 15C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 15D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 15C and 15D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 15C and 15D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0372] Example 9

[0373] In this embodiment, the lens composition of the first lens group 110, the second lens group 120, the third lens group 130, the fourth lens group 140, and the fifth lens group 150 can refer to the above-described embodiment one. When the optical lens 11 is in the wide-angle end state, as shown in FIG16A, both the first lens group 110 and the second lens group 120 are located on the light-incident side of the first refractive element 31, and the first lens group 110 is located on the light-incident side of the second lens group 120. When the optical lens 11 is in the telephoto end state, as shown in FIG16B, the second lens group 120 is located on the light-incident side of the first refractive element 31, and the first lens group 110 is not on the light-incident side of the first refractive element 31.

[0374] In Embodiment Six, the state switching of the optical lens 11 is the same as in Embodiment One. For details, please refer to the above description of the state switching of the optical lens 11 in Embodiment One.

[0375] Table 9.1 shows the optical parameters of each lens and reflective element in an optical lens 11 provided in Embodiment 9 of this application.

[0376] Table 9.1

[0377] The description of Table 2.1 is the same as the related description of Table 2.1. For details, please refer to the description of Table 1.1 in the above embodiment 1.

[0378] Table 9.2 shows the aspherical coefficients of each lens element in an optical lens 11 provided in Embodiment 9 of this application.

[0379] Table 9.2

[0380] As shown in Table 9.2, all the lenses in the first zoom lens group 21 and the second zoom lens group 22 are aspherical lenses, that is, the optical lens 11 includes 22 aspherical surfaces. The aspherical surface type Z of each lens in the optical lens 11 can be calculated by the aspherical formula (1) in the above embodiment.

[0381] By employing the aforementioned lenses, the optical lens 11 achieves features such as small size and large target surface by combining the number of lenses and the focal length, thickness, refractive index, Abbe number, etc. of each lens. The optical parameters of the optical lens 11 composed of the aforementioned lenses can be found in Table 9.3 below.

[0382] Table 9.3 shows the optical parameters of an optical lens provided in Embodiment 9.2.1 of this application.

[0383] Table 9.3

[0384] In Embodiment 9 of this application, the ratio of ft to fw is 2.76, and the ratio of ft1 to fw1 is 1.10. Mt is 2.08, Mw is 0.82, and the ratio of Mt to Mw is 2.54. The ratio of the focal length f11 to fw1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 18.38, and the ratio of the focal length f11 to ft1 of the first lens group 110 moved to the light-incident side of the first refractive element 31 is 16.77. The ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to d1 is 0.42, and the ratio of the maximum moving distance of the lens group in the second zoom lens group 22 to IH is 0.77. The ratio of the focal length of ft to the third lens group 130 is -6.28, and the ratio of fw to the focal length of the third lens group 130 is -2.26. The ratio of TTL to IH is 3.43, the ratio of FOVt to FOVw is 0.41, and (TTL / IH)×(FOVt / FOVw) is 1.40.

[0385] As shown in Figures 16C and 16D, Figure 16C is a modulation transfer function (MTF) curve of the optical lens 11 when it is at the wide-angle end. Figure 16D is a modulation transfer function curve of the optical lens 11 when it is at the telephoto end. The horizontal axis of Figures 16C and 16D represents spatial frequency, and the vertical axis represents modulation contrast. The solid line in the figures represents the sagittal field of view, and the dashed line represents the meridional field of view. The diff.limit in the figures represents the modulation transfer function of the imaging system for an infinitesimal point; the closer the curve is to the diff.limit, the better the image quality. As can be seen from Figures 16C and 16D, the optical lens 11 provided in this application can achieve superior performance at commonly used frequencies, with good imaging effect, and can achieve high-quality imaging at both the wide-angle and telephoto ends.

[0386] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope 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, characterized in that, include: The first zoom lens group, the first refracting element, and the second zoom lens group; The first zoom lens group includes a first lens group and a second lens group, and at least one of the first lens group and the second lens group is disposed on the light-incident side of the first refracting element; The first lens group has a first optical axis, and the second lens group has a second optical axis; The first optical axis is parallel to the second optical axis; At least one of the first lens group and the second lens group can move in a direction perpendicular to the first optical axis to change the focal length of the optical lens; wherein, when the first lens group or the second lens group is located on the light-incident side of the first refractive element, the first lens group and the second lens group do not overlap in the direction of the first optical axis; The second zoom lens group is disposed on the image side of the first refracting element; the second zoom lens group includes a third lens group; the third lens group has a third optical axis; the first optical axis and the second optical axis are respectively perpendicular to the third optical axis; the third lens group can move along the third optical axis to change the focal length of the optical lens.

2. The optical lens according to claim 1, characterized in that, At least one of the first lens group and the second lens group moves from the light-incident side of the first refractive element toward the image side of the optical lens in a direction perpendicular to the first optical axis; or, It moves from the image side of the optical lens toward the light-incident side of the first refracting element.

3. The optical lens according to claim 1 or 2, characterized in that, The first lens group has positive optical power, and the second lens group has positive optical power; When the optical lens is in the first state, both the first lens group and the second lens group are located on the light-incident side of the first refracting element, and the first optical axis and the second optical axis coincide. The focal length of the first zoom lens group located on the light-incident side of the first refracting element is fw1, and the focal length of the optical lens is fw; When the optical lens is in the second state, the second lens group is located on the light-incident side of the first refracting element; the focal length of the first zoom lens group located on the light-incident side of the first refracting element is ft1, and the focal length of the optical lens is ft; wherein, ft>fw, ft1>fw1.

4. The optical lens according to claim 1 or 2, characterized in that, The first lens group has negative optical power, and the second lens group has positive optical power; When the optical lens is in the first state, the second lens group is located on the light-incident side of the first refracting element; When the optical lens is in the second state, both the first lens group and the second lens group are located on the light-incident side of the first refracting element, and the first optical axis and the second optical axis coincide.

5. The optical lens according to claim 1 or 2, characterized in that, The first lens group has positive optical power, and the second lens group has positive optical power; When the optical lens is in the first state, the second lens group is located on the light-incident side of the first refracting element; When the optical lens is in the second state, the first lens group is located on the light-incident side of the first refracting element.

6. The optical lens according to any one of claims 3-5, characterized in that, The second zoom lens group includes a fourth lens group, a fifth lens group, and the third lens group arranged sequentially along the third optical axis; During the zooming process of the optical lens switching from the first state to the second state, both the fifth lens group and the third lens group move towards the first refracting element along the third optical axis; During the zooming process of the optical lens switching from the second state to the first state, both the fifth lens group and the third lens group move away from the first refractive element along the third optical axis.

7. The optical lens according to any one of claims 1-6, characterized in that, The second zoom lens group includes a plurality of lens groups arranged along the third optical axis; the lens group furthest from the first refracting element in the second zoom lens group has negative optical power.

8. The optical lens according to any one of claims 1-7, characterized in that, The second zoom lens group consists of a fourth lens group, a fifth lens group, and the third lens group arranged sequentially along the third optical axis; the fifth lens group is movable along the third optical axis. The fourth lens group has negative optical power, the fifth lens group has positive optical power, and the third lens has negative optical power.

9. The optical lens according to any one of claims 1-8, characterized in that, At least one of the first lens group and the second lens group is disposed on the light-incident side of the first refracting element, including: When the optical lens is in the first state, both the first lens group and the second lens group are located on the light-incident side of the first refracting element, and the first optical axis and the second optical axis coincide. When the optical lens is in the second state, the first lens group is located on the light-incident side of the first refracting element; During the zooming process of the optical lens switching from the first state to the second state, the second lens group is moved out of the light-incident side of the first refracting element in a direction perpendicular to the first optical axis; During the zooming process of the optical lens switching from the second state to the first state, the second lens group is moved along a direction perpendicular to the first optical axis to the light-incident side of the first refracting element so that the first optical axis and the second optical axis coincide.

10. The optical lens according to any one of claims 1-8, characterized in that, At least one of the first lens group and the second lens group is disposed on the light-incident side of the first refracting element, including: When the optical lens is in the first state, the first lens group is located on the light-incident side of the first refracting element; When the optical lens is in the second state, both the first lens group and the second lens group are located on the light-incident side of the first refracting element, and the first optical axis and the second optical axis coincide. During the zooming process of the optical lens switching from the first state to the second state, the second lens group is moved along a direction perpendicular to the first optical axis to the light-incident side of the first refracting element so that the first optical axis and the second optical axis coincide. During the zooming process of the optical lens switching from the second state to the first state, the second lens group is moved out of the light-incident side of the first refracting element in a direction perpendicular to the first optical axis.

11. The optical lens according to any one of claims 1-8, characterized in that, The focal lengths of the first lens group and the second lens group are different; At least one of the first lens group and the second lens group is disposed on the light-incident side of the first refracting element, including: When the optical lens is in the first state, the first lens group is located on the light-incident side of the first refracting element; When the optical lens is in the second state, the second lens group is located on the light-incident side of the first refracting element; During the zooming process of the optical lens switching from the first state to the second state, the second lens group moves to the light-incident side of the first refracting element along a direction perpendicular to the first optical axis, and the first lens group moves out from the light-incident side of the first refracting element along a direction perpendicular to the first optical axis. During the zooming process of the optical lens switching from the second state to the first state, the first lens group moves to the light-incident side of the first refracting element along a direction perpendicular to the first optical axis, and the second lens group moves out from the light-incident side of the first refracting element along a direction perpendicular to the first optical axis.

12. The optical lens according to any one of claims 1-11, characterized in that, The optical lens also includes a second refracting element; the second refracting element is located on the image side of the second zoom lens group.

13. The optical lens according to any one of claims 1-12, characterized in that, The first refracting element includes a prism or a reflector.

14. The optical lens according to any one of claims 1-13, characterized in that, When the optical lens is at its telephoto end, its focal length is ft; when the optical lens is at its wide-angle end, its focal length is fw; ft and fw satisfy: 1 <ft / fw≤4。 15. The optical lens according to any one of claims 1-14, characterized in that, When the optical lens is at the telephoto end, the focal length of the optical lens is ft; when the optical lens is at the wide-angle end, the focal length of the optical lens is fw; ft and fw satisfy: 1.5≤ft / fw≤2.

5.

16. The optical lens according to any one of claims 1-15, characterized in that, When the optical lens is at the telephoto end, the focal length of the first zoom lens group located on the light-incident side of the first refracting element is ft1; when the optical lens is at the wide-angle end, the focal length of the first zoom lens group located on the light-incident side of the first refracting element is fw1; ft1 and fw1 satisfy: 1 <ft1 / fw1≤1.5。 17. The optical lens according to any one of claims 1-16, characterized in that, When the optical lens is at the telephoto end, the cascade magnification of the second zoom lens group to the first zoom lens group located on the light-incident side of the first refracting element is Mt. When the optical lens is at the wide-angle end, the cascade magnification of the second zoom lens group to the first zoom lens group located on the light-incident side of the first refracting element is Mw. Mt and Mw satisfy: 1.5≤Mt / Mw≤3.

5.

18. The optical lens according to claim 9 or 10, characterized in that, When the optical lens is at the telephoto end, the focal length of the first zoom lens group located on the light-incident side of the first refracting element is ft1, and the focal length of the second lens group is f11. ft1 and f11 satisfy: |f11 / ft1|≤28.

19. The optical lens according to claim 9 or 10, characterized in that, When the optical lens is at the wide-angle end, the focal length of the first zoom lens group located on the light-incident side of the first refracting element is fw1, and the focal length of the second lens group is f11. fw1 and f11 satisfy: |f11 / fw1|≤30.

20. The optical lens according to any one of claims 1-19, characterized in that, When the optical lens is at the wide-angle end, the focal length of the optical lens is fw, and fw satisfies: 15mm≤fw≤30mm; And / or, When the optical lens is at the telephoto end, the focal length of the optical lens is ft, and ft satisfies: 35mm≤ft≤55mm.

21. The optical lens according to any one of claims 1-20, characterized in that, When the optical lens is at the wide-angle end, the focal length of the first zoom lens group located on the light-incident side of the first refracting element is fw1, and fw1 satisfies: 15mm≤fw1≤30mm; And / or, When the optical lens is at the telephoto end, the focal length of the first zoom lens group located on the light-incident side of the first refracting element is ft1, and ft1 satisfies: 15mm≤ft1≤30mm.

22. The optical lens according to any one of claims 1-21, characterized in that, When the optical lens is at the wide-angle end, the cascade magnification of the second zoom lens group to the first zoom lens group located on the light-incident side of the first refracting element is Mw, where Mw satisfies: 0.5≤Mw≤1.5; And / or, When the optical lens is at the telephoto end, the cascade magnification of the second zoom lens group to the first zoom lens group located on the light-incident side of the first refracting element is Mt, where Mt satisfies: 1.2≤Mt≤2.

8.

23. The optical lens according to any one of claims 1-22, characterized in that, The total optical length (TTL) of the optical lens satisfies: TTL≤51mm.

24. The optical lens according to any one of claims 1-23, characterized in that, The second zoom lens group includes multiple lens groups arranged along the third optical axis; the lens group with the largest moving distance in the second zoom lens group has a moving distance of dm, and the distance between the first refracting element and the second refracting element is d1, wherein dm and d1 satisfy: 0.25≤dm / d1≤0.

9.

25. The optical lens according to any one of claims 1-24, characterized in that, The second zoom lens group includes multiple lens groups arranged along the third optical axis; the lens group with the largest moving distance in the second zoom lens group has a moving distance of dm, and the imaging target surface size of the optical lens is IH, where dm and IH satisfy: dm / IH≥0.

4.

26. The optical lens according to any one of claims 1-25, characterized in that, The distance between the first refracting element and the second refracting element is d1, and the imaging target surface size of the optical lens is IH. d1 and IH satisfy: d1 / IH≤2.

5.

27. The optical lens according to any one of claims 1-26, characterized in that, The moving distance of the lens group with the largest moving distance in the second zoom lens group is dm, and dm satisfies: 5mm≤dm≤15mm.

28. The optical lens according to any one of claims 1-27, characterized in that, The distance d1 between the first refracting element and the second refracting element is less than or equal to 30mm.

29. The optical lens according to any one of claims 1-28, characterized in that, The second zoom lens group includes a plurality of lens groups arranged along the third optical axis; the sum of the moving distances of the lens groups in the same direction is greater than or equal to 10 mm.

30. The optical lens according to any one of claims 1-29, characterized in that, The second zoom lens group includes multiple lens groups arranged along the third optical axis; the focal length of the lens group furthest from the first refracting element in the second zoom lens group is f22, and the focal length of the optical lens is ft when the optical lens is at the telephoto end; f22 and ft satisfy: 2≤|ft / f22|≤8.

31. The optical lens according to any one of claims 1-30, characterized in that, The second zoom lens group includes a plurality of lens groups arranged along the third optical axis; the focal length of the lens group furthest from the first refracting element in the second zoom lens group is f22, and the focal length of the optical lens is fw when the optical lens is at the wide-angle end; f22 and fw satisfy: 1≤|fw / f22|≤4.

32. The optical lens according to any one of claims 1-31, characterized in that, The total optical length of the optical lens is TTL, the imaging target size of the optical lens is IH, the field of view of the optical lens at the wide-angle end is FOVw, and the field of view of the optical lens at the telephoto end is FOVt; TTL, IH, FOVw, and FOVt satisfy: (TTL / IH)×(FOVt / FOVw)≤2.

5.

33. A camera module, characterized in that, It includes an optical sensor and an optical lens as described in any one of claims 1-32; the optical sensor is disposed on the image side of the optical lens.

34. An electronic device, characterized in that, It includes the camera module and printed circuit board as described in claim 33; the camera module and the printed circuit board are electrically connected.

Images