Optical lens, lens module and terminal

Abstract

The application provides an optical lens, a lens module and a terminal. The optical lens comprises a first group of elements, a second group of elements, a third group of elements and a fourth group of elements arranged in sequence from an object side to an image side, each of the first group of elements to the fourth group of elements comprises at least one lens, the second group of elements comprises a light folding element, the light folding element is used for changing the transmission route of light transmitted from the first group of elements, the third group of elements and the fourth group of elements are coaxially arranged, the optical axis of the third group of elements and the fourth group of elements is at an angle with the optical axis of the first group of elements, the position of the second group of elements relative to the imaging surface of the optical lens is fixed, and the first group of elements, the third group of elements and the fourth group of elements can move relative to the second group of elements. The optical lens provided by the application aims to achieve good imaging effect while obtaining an optical lens with small thickness.

Description

Technical Field

[0001] This application relates to the field of lenses, specifically to an optical lens, a lens module, and a terminal. Background Technology

[0002] In recent years, with the advancement of electronic technology and the rapid development of mobile communication, portable smart devices such as mobile phones have become an indispensable part of people's lives, with cameras being an essential standard feature. At the same time, consumers have increasingly higher demands for mobile phone camera photography, requiring wider zoom ranges, higher resolution, and better image quality. Furthermore, the trend towards ultra-thin mobile phones necessitates saving internal installation space while achieving high imaging performance from optical lenses. Summary of the Invention

[0003] This application provides an optical lens, a lens module including the optical lens, and a terminal including the lens module, aiming to achieve good imaging effects while obtaining an optical lens and lens module with a small thickness, as well as a terminal with a small thickness.

[0004] In a first aspect, an optical lens is provided. It includes a first element, a second element, a third element, and a fourth element arranged sequentially from the object side to the image side. Each of the first to fourth elements includes at least one lens element. The second element includes a refractive element used to change the transmission path of light transmitted from the first element. The third and fourth elements are coaxially arranged, and their optical axes form an angle with the optical axis of the first element. The position of the second element relative to the imaging plane of the optical lens is fixed. The first, third, and fourth elements are all movable relative to the second element, allowing the optical lens to switch between a telephoto, a medium telephoto, a wide-angle, and a macro focus state.

[0005] It should be noted that, in the embodiments of this application, the side where the object is located is called the object side, and the surface of the lens facing the object side can be called the object side surface; the side where the image obtained after the object is imaged by the lens is called the image side, and the surface of the lens facing the image side can be called the image side surface.

[0006] In this embodiment, the third and fourth elements are coaxially arranged, and the optical axes of the third and fourth elements form an angle with the optical axis of the first element. The position of the second element relative to the imaging surface of the optical lens is fixed. The first, third, and fourth elements can all move relative to the second element, so that the optical lens can change between telephoto, medium telephoto, wide-angle, and macro telephoto states. In other words, the third and fourth elements move in coordination with the first element during zooming, so as to achieve the requirement of continuous zooming of the object distance of the optical lens from telephoto to macro telephoto while obtaining high imaging performance.

[0007] Meanwhile, since the position of the second element relative to the imaging surface of the optical lens is fixed, the total optical length of the optical lens changes with the distance between the first and second elements. Specifically, the farther the first element is from the second element, the longer the total optical length of the optical lens. That is, the change in the total optical length is achieved by changing the distance between the first and second elements. The optical lens can increase its total optical length, improve its zoom range, and enhance its image quality by moving the distance between the first and second elements. Furthermore, the second element includes a refractive element, which alters the transmission path of light from the first element, causing the optical axes of the third and fourth elements to form an angle with the optical axis of the first element. Therefore, the distance the first element moves relative to the second element does not increase the distance between the second element and the imaging surface of the optical lens; it only increases the distance between the first and second elements. When this optical lens is applied to a terminal, the first element can extend outside the terminal without increasing its thickness, saving internal space and achieving a thinner terminal including the optical lens.

[0008] In some embodiments, when the optical lens is in a telephoto state, the optical lens satisfies the following relationship:

[0009] 1.0 ≤ TTL / EFLmax ≤ 1.7;

[0010] Wherein, TTL is the total optical length of the optical lens, that is, the total length from the object side of the lens closest to the object side to the imaging plane. EFLmax is the effective focal length of the optical lens when it is in telephoto mode.

[0011] Generally, the effective focal length of an optical lens in telephoto mode is directly proportional to its total optical length. To achieve miniaturization, the total optical length should be as small as possible, therefore the ratio should be as small as possible. In this embodiment, by specifying the range of the ratio between the total optical length of the optical lens and its effective focal length in telephoto mode, the thickness of the optical lens is ensured to be sufficiently small, which is beneficial for miniaturization. When the optical lens is applied to a terminal, it occupies less space, thus achieving a thinner terminal.

[0012] In some embodiments, the optical lens satisfies the following relationship:

[0013] 0.01≤IH / EFLmax≤0.1;

[0014] Wherein, IH is the image height of the optical lens.

[0015] The ratio of the image height to the effective focal length when the optical lens is in telephoto mode, as specified above, represents the telephoto capability of the optical lens, that is, its ability to capture images of objects located at a distance from the lens. This ratio ensures the telephoto capability of the optical lens, meeting the needs of various shooting scenarios and improving the user experience.

[0016] In some embodiments, the first component has positive optical power, and the first component satisfies the following relationship:

[0017] 1.0 ≦|fs1 / ft| ≦1.7;

[0018] Where fs1 is the focal length of the first element, and ft is the focal length of the optical lens in telephoto mode.

[0019] The above-mentioned relationship defines the range of the ratio of the focal length of the first element to the focal length of the optical lens in the telephoto state. In this embodiment, when the range of the ratio of the focal length of the first element to the focal length of the optical lens in the telephoto state satisfies the above-mentioned relationship, it is convenient for the first element to be combined with other lenses to obtain the required optical lens, so that the optical lens has a wider zoom range and can obtain better imaging.

[0020] In some embodiments, the second component has negative optical power, and the second component satisfies the following relationship:

[0021] 0.1 ≦|fs2 / ft| ≦0.7;

[0022] Where fs2 is the focal length of the second element, and ft is the focal length of the optical lens in telephoto mode.

[0023] The above-mentioned relationship defines the range of the ratio between the focal length of the second element and the focal length of the optical lens in the telephoto state. In this embodiment, when the range of the ratio between the second element and the focal length of the optical lens in the telephoto state satisfies the above-mentioned relationship, it is convenient for the second element to be combined with other lenses to obtain the required optical lens, so that the optical lens has a wider zoom range and can obtain better imaging.

[0024] In some embodiments, the third element has positive optical power, and the third element satisfies the following relationship:

[0025] 0.1 ≦|fs3 / ft| ≦0.7;

[0026] Where fs3 is the focal length of the third element, and ft is the focal length of the optical lens in telephoto mode.

[0027] The above formula defines the range of the ratio of the focal length of the third element to the focal length of the optical lens in telephoto mode. In this embodiment, when the range of the ratio of the focal length of the third element to the focal length of the optical lens in telephoto mode satisfies the above formula, it is convenient for the third element to cooperate with other lenses to correct or reduce aberrations, so that the optical lens has a wider zoom range and can obtain better imaging.

[0028] In some embodiments, the fourth element has positive optical power, and the fourth element satisfies the following relationship:

[0029] 0.3 ≦|fs4 / ft| ≦0.9;

[0030] Where fs4 is the focal length of the fourth element, and ft is the focal length of the optical lens in telephoto mode.

[0031] The aforementioned formula defines the range of the ratio between the focal length of the fourth element and the focal length of the optical lens in its telephoto state. The fourth element is mainly used to correct aberrations in the optical system, thereby improving image quality. Furthermore, in this embodiment, when the range of the ratio between the fourth element and the focal length of the optical lens in its telephoto state satisfies the aforementioned formula, it facilitates the combination of the fourth element with other lenses to obtain the desired optical lens, thereby enabling the optical lens to have a wider zoom range and achieve better imaging.

[0032] In some embodiments, the optical lens satisfies the following relationship:

[0033] 4mm≤φmax≤15mm;

[0034] Wherein, φmax is the diameter of the largest lens among the first group, the second group, the third group, and the fourth group.

[0035] The size of the largest lens in an optical lens is represented by the range of diameters of the largest lens in the first, second, third, and fourth elements as specified above. When the diameter range of the largest lens in the first, second, third, and fourth elements satisfies the above relationship, it is beneficial to miniaturize the optical lens, allowing it to occupy less space in the terminal when applied, thus achieving a thinner terminal.

[0036] In some embodiments, the first, second, third, and fourth components collectively have N lenses with optical power, where N is an integer greater than or equal to 7 and less than or equal to 15, and at least 7 of the N lenses with optical power are aspherical. By limiting the number of lenses with optical power in the optical lens to 7 to 15 (inclusive), a better imaging effect with a wide zoom range is achieved while ensuring a sufficiently small optical lens size. Simultaneously, limiting the number of aspherical elements in the N lenses with optical power to at least 7 effectively corrects aberrations, ensures the photographic quality of the optical lens, and improves the user experience.

[0037] In some embodiments, the difference between the principal ray angle of the optical lens in wide-angle mode and the principal ray angle in telephoto mode is less than or equal to 3 degrees, so as to ensure that the image does not show color distortion and improve the imaging quality of the optical lens.

[0038] In some embodiments, the difference between the principal ray angle of the optical lens in telephoto mode and the principal ray angle in macrophoto mode is less than or equal to 5 degrees, so as to ensure that the image does not show color distortion and improve the imaging quality of the optical lens.

[0039] In some embodiments, the fourth component includes a cemented lens. By incorporating a cemented lens in the fourth component, it is beneficial to correct chromatic aberration in the optical lens, thereby enabling the optical lens to achieve better image quality.

[0040] In some embodiments, the optical lens includes an aperture stop located on the object side of the third element, that is, the aperture stop is located between the second and third elements to limit the size of the light beam transmitted from the second element to the third element, thereby ensuring that the optical lens achieves better imaging results.

[0041] Secondly, this application provides a lens module, the lens module including a photosensitive element, a driving element and an optical lens as described in any of the above embodiments, the photosensitive element being located on the image side of the optical lens and on the imaging plane of the optical lens, and the driving element being used to drive the first element, the third element and the fourth element to move relative to the second element.

[0042] The lens module of this application includes an optical lens, a driving component, and a photosensitive element. The driving component achieves zoom by moving a first element, a third element, and a fourth element relative to a second element. When the lens module is working, the driving component can move the first element away from the second element, increasing the total optical length of the optical lens, allowing the optical lens to reach a telephoto state and thus capture images of distant objects. When the lens module is not working, the driving component can move the first element closer to the second element. During the operation of the lens module, the first element can extend outside the lens module. When the lens module is applied to a terminal, the first element can extend outside the terminal without increasing the terminal's thickness, saving internal space and achieving a thinner terminal including the optical lens. Compared to the thickness of a typical lens module (where the total optical length of the optical lens is fixed, increasing the total optical length requires increasing the thickness of the optical lens), the thickness of this lens module is significantly reduced, and it has a wider zoom range, improving telephoto quality.

[0043] Thirdly, this application provides a terminal. The terminal includes an image processor and the aforementioned lens module. The image processor is communicatively connected to the lens module. The lens module is used to acquire image data and input the image data into the image processor. The image processor is used to process the output image data. The lens module of this application can achieve a wide zoom range and good imaging effect, enabling the terminal of this application to be used in wide-range zoom shooting scenarios.

[0044] In some embodiments, the terminal further includes a housing, in which the lens module and the image processor are both housed. The housing has a light-transmitting hole, and a first component of the lens module faces the light-transmitting hole. When the driving member drives the first component away from the second component, the first component can extend out of the housing through the light-transmitting hole.

[0045] When a lens module is used in a terminal, the first element can be moved away from the second element during operation, extending out of the outer casing through the light-transmitting hole. This increases the overall optical length of the lens module, allowing the optical lens to reach a telephoto state and capture images of distant objects. In other words, the first element extends out of the terminal's outer casing as the overall optical length of the lens module increases. This means that the change in the overall optical length of the lens module does not affect its internal space within the terminal, eliminating the need for reserved space for zoom capabilities and saving internal space, thus contributing to a thinner terminal design. Attached Figure Description

[0046] Figure 1 This is a structural diagram of a terminal;

[0047] Figure 2 This is a structural diagram of another type of terminal;

[0048] Figure 3 This is an exploded view of the lens module according to an embodiment of this application;

[0049] Figure 4 yes Figure 3 The diagram shows another state structure of the lens module.

[0050] Figure 5 This is a partial structural schematic diagram of the lens module of this application;

[0051] Figure 6 yes Figure 3 The diagram shows the structure of the optical lens of the lens module shown.

[0052] Figure 7 yes Figure 6 A partial structural diagram of the optical lens is shown.

[0053] Figure 8 yes Figure 3 A partial structural diagram of the provided camera module from another perspective;

[0054] Figure 9 yes Figure 6 The diagram shows the zoom process of the optical lens.

[0055] Figure 10 yes Figure 6 The diagram shows another zoom process of the optical lens.

[0056] Figure 11 This is a schematic diagram of the structure of the optical lens according to the first embodiment of this application;

[0057] Figure 12 yes Figure 11 The diagram shows the zoom process of the optical lens.

[0058] Figure 13 yes Figure 11 The diagram shows another zoom process of the optical lens.

[0059] Figure 14 This is a schematic diagram of axial chromatic aberration of the optical lens in the first embodiment of this application when it is in telephoto mode;

[0060] Figure 15 This is a schematic diagram of axial chromatic aberration of the optical lens in the mid-focus state according to the first embodiment of this application;

[0061] Figure 16 This is a schematic diagram of axial chromatic aberration of the optical lens in the wide-angle state according to the first embodiment of this application;

[0062] Figure 17 This is a schematic diagram of axial chromatic aberration of the optical lens in the first embodiment of this application when it is in a micro-focus state;

[0063] Figure 18 This is a schematic diagram of lateral chromatic aberration of the optical lens in the first embodiment of this application when it is in telephoto mode;

[0064] Figure 19 This is a schematic diagram of lateral chromatic aberration of the optical lens in the mid-focus state according to the first embodiment of this application;

[0065] Figure 20 This is a schematic diagram of lateral chromatic aberration of the optical lens in the wide-angle state according to the first embodiment of this application;

[0066] Figure 21 This is a schematic diagram of lateral chromatic aberration of the optical lens in the first embodiment of this application when it is in a micro-focus state;

[0067] Figure 22 This is a schematic diagram of field curvature and optical distortion of the optical lens in the first embodiment of this application in the telephoto state;

[0068] Figure 23 This is a schematic diagram of field curvature and optical distortion of the optical lens in the mid-focus state according to the first embodiment of this application;

[0069] Figure 24 This is a schematic diagram of field curvature and optical distortion of the optical lens in the wide-angle state according to the first embodiment of this application;

[0070] Figure 25 This is a schematic diagram of field curvature and optical distortion of the optical lens in the first embodiment of this application when it is in a micro-focus state;

[0071] Figure 26 This is a schematic diagram of the structure of the optical lens according to the second embodiment of this application;

[0072] Figure 27 yes Figure 26 The diagram shows the zoom process of the optical lens.

[0073] Figure 28 yes Figure 26 The diagram shows another zoom process of the optical lens.

[0074] Figure 29 This is a schematic diagram of axial chromatic aberration of the optical lens in the telephoto state according to the second embodiment of this application;

[0075] Figure 30 This is a schematic diagram of axial chromatic aberration of the optical lens in the mid-focus state according to the second embodiment of this application;

[0076] Figure 31This is a schematic diagram of axial chromatic aberration of the optical lens in the wide-angle state according to the second embodiment of this application;

[0077] Figure 32 This is a schematic diagram of axial chromatic aberration of the optical lens in the micro-focus state according to the second embodiment of this application;

[0078] Figure 33 This is a schematic diagram of lateral chromatic aberration of the optical lens in the telephoto state according to the second embodiment of this application;

[0079] Figure 34 This is a schematic diagram of lateral chromatic aberration of the optical lens in the mid-focus state according to the second embodiment of this application;

[0080] Figure 35 This is a schematic diagram of lateral chromatic aberration of the optical lens in the wide-angle state according to the second embodiment of this application;

[0081] Figure 36 This is a schematic diagram of lateral chromatic aberration of the optical lens in the second embodiment of this application when it is in a micro-focus state;

[0082] Figure 37 This is a schematic diagram of field curvature and optical distortion of the optical lens in the telephoto state according to the second embodiment of this application;

[0083] Figure 38 This is a schematic diagram of field curvature and optical distortion of the optical lens in the mid-focus state according to the second embodiment of this application;

[0084] Figure 39 This is a schematic diagram of field curvature and optical distortion of the optical lens in the wide-angle state according to the second embodiment of this application;

[0085] Figure 40 This is a schematic diagram of field curvature and optical distortion of the optical lens in the micro-focus state according to the second embodiment of this application;

[0086] Figure 41 This is a schematic diagram of the structure of the optical lens according to the third embodiment of this application;

[0087] Figure 42 yes Figure 41 The diagram shows the zoom process of the optical lens.

[0088] Figure 43 yes Figure 41 The diagram shows another zoom process of the optical lens.

[0089] Figure 44 This is a schematic diagram of axial chromatic aberration of the optical lens in the telephoto state according to the third embodiment of this application;

[0090] Figure 45This is a schematic diagram of axial chromatic aberration of the optical lens in the mid-focus state according to the third embodiment of this application;

[0091] Figure 46 This is a schematic diagram of axial chromatic aberration of the optical lens in the wide-angle state according to the third embodiment of this application;

[0092] Figure 47 This is a schematic diagram of axial chromatic aberration of the optical lens in the micro-focus state according to the third embodiment of this application;

[0093] Figure 48 This is a schematic diagram of lateral chromatic aberration of the optical lens in the telephoto state according to the third embodiment of this application;

[0094] Figure 49 This is a schematic diagram of lateral chromatic aberration of the optical lens in the mid-focus state according to the third embodiment of this application;

[0095] Figure 50 This is a schematic diagram of lateral chromatic aberration of the optical lens in the wide-angle state according to the third embodiment of this application;

[0096] Figure 51 This is a schematic diagram of lateral chromatic aberration of the optical lens in the micro-focus state according to the third embodiment of this application;

[0097] Figure 52 This is a schematic diagram of field curvature and optical distortion of the optical lens in the telephoto state according to the third embodiment of this application;

[0098] Figure 53 This is a schematic diagram of field curvature and optical distortion of the optical lens in the mid-focus state according to the third embodiment of this application;

[0099] Figure 54 This is a schematic diagram of field curvature and optical distortion of the optical lens in the wide-angle state according to the third embodiment of this application;

[0100] Figure 55 This is a schematic diagram of field curvature and optical distortion of the optical lens in the micro-focus state according to the third embodiment of this application. Detailed Implementation

[0101] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0102] For ease of understanding, the technical terms used in this application will be explained and described below.

[0103] Focal length, also known as focal length, is a measure of the convergence or divergence of light in an optical system. It refers to the perpendicular distance from the optical center of a lens or lens group to the image plane when a distant object is projected into a sharp image. For prime lenses, the position of their optical center remains constant; for zoom lenses, changes in the optical center result in changes in the focal length.

[0104] The optical axis is a ray of light that passes perpendicularly through the center of an ideal lens. When rays of light parallel to the optical axis enter a convex lens, the ideal convex lens should have all the rays converging at a single point behind the lens; this point where all the rays converge is called the focal point.

[0105] Aperture is a device used to control the amount of light passing through the lens and entering the camera's sensor. It is usually located inside the lens. Aperture size is expressed as F / number.

[0106] The aperture F-number is a relative value derived from the lens's focal length divided by its light-gathering diameter (the reciprocal of the relative aperture). A smaller F-number allows more light to enter the lens in the same unit of time. A smaller F-number also results in a shallower depth of field, blurring the background and creating an effect similar to a telephoto lens.

[0107] Back Focal Length (BFL) is the distance from the vertex of the image side of the lens closest to the image side to the imaging plane of the lens.

[0108] Positive optical power, also known as positive refractive power, indicates that a lens has a positive focal length and the effect of converging light.

[0109] Negative power, also known as negative refractive power, means that the lens has a negative focal length and a diverging effect on light.

[0110] Total Track Length (TTL) refers to the total length from the object side of the lens closest to the object side to the imaging plane, and is a major factor in determining the height of the camera.

[0111] The maximum chief ray angle (CRA) is the angle between the lens's chief ray and the optical axis. The smaller the chief ray angle, the sharper the image.

[0112] The Abbe number, or dispersion coefficient, is an index used to represent the dispersive ability of a transparent medium. 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. The field of view (FOV) in optical instruments is the angle between the two edges of the lens of the instrument, representing the maximum range through which the image of the target object can pass through the lens. The size of the FOV determines the field of view of the optical instrument; the larger the FOV, the larger the field of view, and the smaller the optical magnification.

[0113] The object side is defined by the lens; the side where the scene to be imaged is located is the object side.

[0114] Image side, with the lens as the boundary, is the side where the image of the scene to be imaged is located.

[0115] The object side surface is the surface of the lens closest to the object side.

[0116] The image side is the surface of the lens closest to the image.

[0117] Using the lens as a boundary, the side where the subject is located is called the object side, and the surface of the lens closest to the object side can be called the object side surface; using the lens as a boundary, the side where the image of the subject is located is called the image side, and the surface of the lens closest to the image side can be called the image side surface.

[0118] Axial chromatic aberration, also known as longitudinal chromatic aberration or positional chromatic aberration, occurs when a beam of light parallel to the optical axis converges at different positions after passing through a lens. This aberration is called positional chromatic aberration or axial chromatic aberration. This is because the lens converges light of different wavelengths at different positions, causing the images of different colors of light to not overlap during final imaging, resulting in the dispersion of polychromatic light.

[0119] Lateral chromatic aberration, also known as magnification chromatic aberration, refers to the difference in magnification of different colors of light by an optical system. Wavelength causes a change in the magnification of the optical system, and consequently, the size of the image changes.

[0120] Distortion, also known as image distortion, refers to the degree of distortion of the image formed by an optical system relative to the object itself. The height of the intersection point between the principal ray from different fields of view and the Gaussian image plane after passing through the optical system is not equal to the height of the ideal image; this difference is distortion. Therefore, distortion only changes the imaging position of an off-axis object point on the ideal plane, causing distortion in the image shape, but it does not affect the image's sharpness.

[0121] Optical distortion refers to the degree of deformation calculated in optical theory.

[0122] The diffraction limit refers to the phenomenon where, when an ideal object point is imaged by an optical system, an ideal image point cannot be obtained due to diffraction limitations; instead, a Fraunhofer diffraction image is obtained. Since the aperture of a typical optical system is circular, the Fraunhofer diffraction image is known as the Airy disk. Thus, the image of each object point is a diffuse spot, and two diffuse spots become difficult to distinguish when they are close together. This limits the system's resolution; the larger the spot, the lower the resolution.

[0123] This application provides a terminal, which can be a mobile phone, tablet computer, laptop computer, camcorder, video recorder, camera, or other device with photo or video recording capabilities. The terminal includes at least one optical lens, including a zoom lens, thereby enabling the terminal to achieve zoom shooting effects. Please refer to [link to relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of the back of a terminal according to one embodiment of this application. In this embodiment, the terminal 1000 is a mobile phone. This application describes the embodiment with the terminal 1000 being a mobile phone as an example.

[0124] Terminal 1000 includes a lens module 100, an image processor 200, and a housing 300. Both the lens module 100 and the image processor 200 are housed within the housing 300. The housing 300 has a light-transmitting hole 301. The light-incident side of the lens module 100 is positioned opposite to the light-transmitting hole 301 of the housing 300. When the lens module 100 is capturing an image, it can extend out of the housing 300 through the light-transmitting hole 301. The image processor 200 is communicatively connected to the lens module 100. The lens module 100 acquires image data and inputs it into the image processor 200, which then processes the output image data. The communication connection between the lens module 100 and the image processor 200 can include data transmission via electrical connections such as wiring, or via coupling. It is understood that the lens module 100 and the image processor 200 can also be connected via other methods capable of data transmission.

[0125] When the lens module 100 is applied in the terminal 1000, the lens module 100 zooms according to the scene requirements during operation. During zooming, the lens module 100 can partially extend out of the outer shell 300 through the light-transmitting hole 301, increasing the total optical length of the lens module 100 to achieve a telephoto state, thereby enabling the lens module 100 to capture images of distant objects. In other words, the lens module 100 can extend out of the outer shell 300 of the terminal 1000 when increasing its total optical length. This means that the change in the total optical length of the lens module 100 does not affect its space occupation within the terminal 1000, eliminating the need for the terminal 1000 to provide reserved space for the zoom of the lens module 100, thus saving internal space and achieving a thinner terminal 1000. Furthermore, the lens module 100 of this embodiment can achieve a wide zoom range and good imaging effect, enabling the terminal 1000 of this application to be used in scenarios requiring wide-range zoom shooting.

[0126] The image processor 200 optimizes digital image signals through a series of complex mathematical algorithms and then transmits the processed signals to the display. The image processor 200 can be a standalone image processing chip or a digital signal processing (DSP) chip. Its role is to transmit data obtained by the image sensor to the central processing unit (CPU) in a timely and rapid manner and refresh the image sensor. Therefore, the quality of the DSP chip directly affects image quality (such as color saturation and sharpness). The image processor 200 can also be integrated into other chips (such as a CPU chip).

[0127] Figure 1 In the illustrated embodiment, the lens module 100 is located on the back of the terminal 1000 and serves as the rear camera of the terminal 1000. It is understood that in some embodiments, the lens module 100 may also be located on the front of the terminal 1000, serving as the front camera of the terminal 1000. Both the front and rear cameras can be used for selfies or for the photographer to capture images of other objects.

[0128] In some embodiments, there are multiple lens modules 100, where "multiple" means two or more. Different lens modules 100 can serve different purposes, thus meeting the needs of different shooting scenarios. For example, in some embodiments, the multiple lens modules 100 include zoom lens modules or fixed-focus lens modules to respectively achieve zoom shooting and fixed-focus shooting. Figure 1In the illustrated embodiment, the terminal 1000 has two rear cameras, namely a standard lens module and a zoom lens module. The standard lens module can be used for everyday shooting, while the zoom lens module can be used in scenarios requiring zoom shooting. In some embodiments, multiple different lens modules 100 can all be communicatively connected to the image processor 200, allowing the image processor 200 to process the image data captured by each lens module 100.

[0129] It should be understood that Figure 1 The installation position of the lens module 100 of the terminal 1000 in the illustrated embodiment is merely illustrative. In some other embodiments, the lens module 100 may also be installed in other locations on the mobile phone, such as the upper center or upper right corner of the back of the mobile phone. Alternatively, the lens module 100 may not be mounted on the main body of the mobile phone, but on a component that is movable or rotatable relative to the mobile phone, such as a component that can extend outward, retract, or rotate from the main body of the mobile phone. This application does not impose any limitation on the installation position of the lens module 100.

[0130] Please see Figure 2 In some embodiments, the terminal 1000 further includes an analog-to-digital converter 400 (also known as an A / D converter). The analog-to-digital converter 400 is connected between the lens module 100 and the image processor 200. The analog-to-digital converter 400 is used to convert the signal generated by the lens module 100 into a digital image signal and transmit it to the image processor 200. The image processor 200 then processes the digital image signal and finally displays the image or video on a display screen or monitor.

[0131] In some embodiments, the terminal 1000 further includes a memory 500, which is communicatively connected to the image processor 200. The image processor 200 processes the digital image signal before transmitting the image to the memory 500, so that the image can be retrieved from storage and displayed on the screen when needed later. In some embodiments, the image processor 200 also compresses the processed digital image signal before storing it in the memory 500 to save memory space. It should be noted that... Figure 2 This is merely a schematic diagram of the structure of an embodiment of this application, and the positional structure of the lens module 100, image processor 200, analog-to-digital converter 400, memory 500, etc. shown are only for illustration.

[0132] Please see Figure 1 and Figure 3The lens module 100 includes an optical lens 10, a photosensitive element 20, a driving component, and a housing 30. The housing 30 includes a through-hole 31 and a receiving space 32. The through-hole 31 communicates with the receiving space 32 and is positioned opposite to the light-transmitting hole 301 of the housing 300. The driving component, the photosensitive element 20, and the optical lens 10 are all housed within the receiving space 32. The photosensitive element 20 is connected to the housing 300 and is located on the image side of the optical lens 10 and on the imaging plane of the optical lens 10. The driving component drives the components in the optical lens 10 to achieve zoom. The light-incident side of the optical lens 10 faces the through-hole 31. When zooming, the optical lens 10 can partially extend out of the receiving space 32 through the through-hole 31 (e.g., ...). Figure 4 The light-transmitting aperture 301 extends out of the housing 300. When the lens module 100 is working, the scene to be imaged passes through the optical lens 10 and is imaged on the photosensitive element 20. Specifically, as shown... Figure 5 As shown, the working principle of the lens module 100 is as follows: the light L reflected from the subject passes through the optical lens 10 to generate an optical image, which is projected onto the surface of the photosensitive element 20. The photosensitive element 20 converts the optical image into an electrical signal, i.e., an analog image signal S1, and transmits the converted analog image signal S1 to the analog-to-digital converter 400, which then converts it into a digital image signal S2 for the image processor 200. Of course, in other embodiments, the lens module 100 may not have a housing, and the photosensitive element 20 may be fixed on a bracket or other structure.

[0133] When the lens module 100 is working, the optical lens 10 can partially extend out of the housing space 32 during zooming, and then extend out of the housing 300 through the light-transmitting hole 301, increasing the total optical length of the optical lens 10 so that it can reach a telephoto state, thereby enabling the optical lens 10 to capture images of distant objects. When the lens module 100 is not working, the optical lens 10 is completely housed inside the housing space 32. During the operation of the lens module 100, the extension of part of the optical lens 10 out of the housing 30 does not affect the height of the housing 30. Compared to the thickness of a typical lens module 100 (the total optical length of the optical lens 10 in a typical module is fixed, and increasing the total optical length of the optical lens 10 requires increasing the thickness of the optical lens 10), the thickness of the lens module 100 is greatly reduced, and it has a wider zoom range, improving telephoto quality. When the lens module 100 is applied to the terminal 1000, it will not increase the thickness of the terminal 1000, saving internal space of the terminal 1000 and realizing the thinning of the terminal 1000 including the lens module 100.

[0134] The housing 30 includes a bottom wall 33, a peripheral wall 34, and a top wall 35. The peripheral wall 34 surrounds the bottom wall 33 and connects to the top wall 35, forming a receiving space 32. A through hole 31 is provided on the top wall 35, and the photosensitive element 20 is provided on the peripheral wall 34 away from the light-transmitting hole 301. Specifically, a circuit board is also provided between the photosensitive element 20 and the peripheral wall 34. The photosensitive element 20 is fixed to the circuit board by bonding or surface mounting, and the analog-to-digital converter 400, image processor 200, memory 500, etc. are also fixed to the circuit board by bonding or surface mounting, thereby realizing the communication connection between the photosensitive element 20, analog-to-digital converter 400, image processor 200, memory 500, etc. through the circuit board. The circuit board can be a flexible printed circuit (FPC) or a printed circuit board (PCB) for transmitting electrical signals. The FPC can be a single-sided flexible board, a double-sided flexible board, a multi-layer flexible board, a rigid-flexible board, or a hybrid flexible circuit board, etc.

[0135] The photosensitive element 20 is a semiconductor chip containing hundreds of thousands to millions of photodiodes on its surface. When illuminated by light, these photodiodes generate electrical charges, which are then converted into digital signals by the analog-to-digital converter (ADC) chip 400. The photosensitive element 20 can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) device. A CCD is made using a highly sensitive semiconductor material that converts light into electrical charges, which are then converted into digital signals by the ADC chip 400. A CCD consists of many photosensitive units, typically measured in megapixels. When light illuminates the CCD surface, each photosensitive unit reflects a charge onto its component. The signals generated by all the photosensitive units are combined to form a complete image. CMOS primarily utilizes semiconductors made of silicon and germanium, allowing N-type (negatively charged) and P-type (positively charged) semiconductors to coexist on the CMOS. The current generated by these complementary effects can be recorded and interpreted by the processing chip as an image.

[0136] The driving unit includes a first driving section, a second driving section, and a third driving section. The first driving section, the second driving section, and the third driving section are respectively used to drive the relevant elements of the optical lens 10 to achieve zooming and focusing of the lens module 100. Each of the first driving section, the second driving section, and the third driving section includes one or more driving sections, capable of driving the relevant elements of the optical lens 10 for focusing and / or optical image stabilization. When the first driving section, the second driving section, and the third driving section drive the relevant elements of the optical lens 10 for focusing, they drive relative movement between the relevant elements of the optical lens 10 to achieve focusing. When the first driving section, the second driving section, and the third driving section drive the relevant elements of the optical lens 10 for image stabilization, they drive the relevant elements of the optical lens 10 to move or rotate relative to the photosensitive element 20, and / or drive the relevant elements of the optical lens 10 to move or rotate relative to each other to achieve optical image stabilization. The first driving section, the second driving section, and the third driving section can be a motor, electric motor, or other driving structure.

[0137] The lens module 100 also includes an infrared filter 40, which can be fixed on the circuit board and located between the optical lens 10 and the photosensitive element 20. Light passing through the optical lens 10 illuminates the infrared filter 40 and is transmitted to the photosensitive element 20 via the infrared filter 40. The infrared filter 40 can eliminate unwanted light projected onto the photosensitive element 20, preventing the photosensitive element 20 from producing false colors or ripples, thereby improving its effective resolution and color reproduction. In some embodiments, the infrared filter 40 can also be fixed on the image-facing end of the optical lens 10. Other components included in the lens module 100 will not be described in detail here.

[0138] Please see Figure 6 The optical lens 10 affects image quality and effect. It primarily utilizes the refraction principle of lenses for imaging; that is, light from the scene passes through the optical lens 10 and forms a clear image on the imaging plane, which is then recorded by the photosensitive element 20 located on the imaging plane. The imaging plane refers to the plane on which the image of the scene is formed after being imaged by the optical lens 10. The optical lens 10 includes multiple components arranged sequentially from the object side to the image side. Each component includes at least one lens element, and the cooperation of these lenses forms an image with optimal imaging effect. The object side refers to the side where the subject is located, and the image side refers to the side where the imaging plane is located.

[0139] In this application, the optical lens 10 is a zoom lens. When the focal length of the optical lens 10 is changed, the optical lens 10 is moved relative to the photosensitive element 20 accordingly, which ensures that the optical lens 10 can achieve good imaging within the designed focal length range.

[0140] Please see Figure 4 , Figure 6 and Figure 7 In some embodiments of this application, the optical lens 10 includes a first element G1, a second element G2, a third element G3, and a fourth element G4 arranged sequentially from the object side to the image side. Each element from the first element G1 to the fourth element G4 includes at least one lens. Each lens in each element is arranged along the optical axis, and each lens includes an object side facing the object side and an image side facing the image side. Specifically, the image side of the fourth element G4 faces the photosensitive element 20. The second element G2, the third element G3, and the fourth element G4 are coaxial. The second element G2 includes a refractive element G21, which is located on the side of the second element G2 facing away from the third element G3. The first element G1 is located on the side of the refractive element G21 facing away from the bottom wall 33 and facing the through hole 31. The optical axes of the third element G3 and the fourth element G4 form an angle with the optical axis of the first element G1. It is understood that the optical path of the optical lens 10 includes a first optical path and a second optical path, which form an angle. Light is transmitted along the first optical path and, after passing through the refractive element G21, is transmitted along the second optical path. The first element G1 is located on the first optical path, and the third element G3 and the fourth element G4 are located on the second optical path. In this embodiment, the angle is 90 degrees, that is, the optical axes of the third element G3 and the fourth element G4 are perpendicular to the optical axis of the first element G1. Of course, the angle between the optical axes of the third element G3 and the fourth element G4 and the optical axis of the first element G1 can also be any other degree between 0 degrees and 180 degrees (excluding 0 degrees and 180 degrees).

[0141] Light from the outside world passes through the light-transmitting aperture 301 and the through-hole 31 into the first element G1, then is converted by the refractive element G21 and passes through the lens of the second element G2, the third element G3, and the fourth element G4, before finally being received by the photosensitive element 20. The refractive element G21 is used to change the transmission path of the light transmitted from the first element G1. The position of the second element G2 relative to the imaging surface of the optical lens 10 is fixed, while the first element G1, the third element G3, and the fourth element G4 can all move relative to the second element G2. When the first element G1 is a certain distance away from the second element G2, the first element G1 can extend out of the receiving space 32 through the through-hole 31, and then extend out of the outer shell 300 through the light-transmitting aperture 301. In this embodiment, the refractive element G21 is a prism. It can be understood that a prism is also a lens, and all the lenses in this application, except for the prism, are lenses with positive or negative optical power. Of course, in other embodiments, the refracting element G21 can also be a reflector or other element that can change the optical path.

[0142] The third element G3 and the fourth element G4 of this application can move relative to the second element G2 to cooperate with the first element G1, so that the optical lens 10 can change between telephoto, medium telephoto, wide-angle, and macro modes. That is, the third element G3 and the fourth element G4 move in coordination with the first element G1 during zooming, achieving high imaging performance while meeting the requirement of continuous zooming of the object distance of the optical lens 10 from telephoto to macro. It is understood that the telephoto, medium telephoto, wide-angle, or macro modes of the optical lens 10 are based on a 135 camera. Specifically, the equivalent focal length of the optical lens 10 is used to determine whether the optical lens 10 is in a telephoto, medium telephoto, wide-angle, or macro mode. The equivalent focal length of the optical lens 10 = (43.3 * focal length of the optical lens 10) / length of the diagonal of the image sensor 20. The focal length of the optical lens 10 mentioned in this document is the actual focal length of the optical lens 10. When the optical lens 10 is in telephoto mode, the equivalent focal length of the optical lens 10 is greater than or equal to 50cm. When the optical lens 10 is in medium telephoto mode, the equivalent focal length of the optical lens 10 is in the range of 25cm to 27cm (inclusive). When the optical lens 10 is in wide-angle mode, the equivalent focal length of the optical lens 10 is less than or equal to 24cm. When the optical lens 10 is in macro mode, the equivalent focal length of the optical lens 10 is less than or equal to 10cm.

[0143] In this embodiment, when the optical lens 10 is working, the first element G1, the third element G3, and the fourth element G4 can move relative to the second element G2 through the first driving unit, the second driving unit, and the third driving unit, respectively. Since the position of the second element G2 relative to the imaging surface of the optical lens 10 is fixed, the total optical length of the optical lens 10 changes with the distance between the first element G1 and the second element G2. The farther the first element G1 is from the second element G2, the longer the total optical length of the optical lens 10. In other words, the optical lens 10 can extend out of the receiving space 32 through the through hole 31 and then out of the outer shell 300 through the light-transmitting hole 301 by moving the distance between the first element G1 and the second element G2, thereby increasing the total optical length of the optical lens 10, improving the zoom range of the optical lens 10, and improving the imaging quality of the optical lens 10. During the zooming process of the optical lens 10, the second element G2 includes a refractive element G21, which changes the transmission path of light from the first element G1. This makes the optical axis of the first element G1 perpendicular to the optical axes of the third element G3 and the fourth element G4. The first element G1 can extend out of the receiving space 32 through the through-hole 31 and then out of the outer casing 300 through the light-transmitting hole 301. Therefore, the distance the first element G1 moves relative to the second element G2 does not increase the distance between the second element G2 and the imaging surface of the optical lens 10; it only increases the distance between the first element G1 and the second element G2. Since the first element G1 can extend outside the terminal 1000, the terminal 1000 does not need to provide additional space for the displacement of the first element G1 relative to the second element G2, saving internal space and achieving a thinner terminal 1000. When the optical lens 10 is not working, the first element G1 is housed inside the casing 30, making the terminal 1000 more convenient to use.

[0144] In some embodiments of this application, the optical lens 10 includes a first lens barrel 1, a second lens barrel 2, a third lens barrel 3, and a fourth lens barrel 4. The lens of the first component G1 is connected and fixed inside the first lens barrel 1. The lens and the refractive element G21 of the second component G2 are connected and fixed inside the second lens barrel 2. The lens of the third component G3 is fixedly connected inside the third lens barrel 3. The lens of the fourth component G4 is fixedly connected inside the fourth lens barrel 4. The first lens barrel 1, the second lens barrel 2, the third lens barrel 3, and the fourth lens barrel 4 are used to fix the first component G1, the second component G2, the third component G3, and the fourth component G4 respectively, so as to keep the first component G1, the second component G2, the third component G3, and the fourth component G4 stably fixed inside the housing 30 of the lens module 100.

[0145] In some embodiments, such as Figure 8 As shown, Figure 8 yes Figure 3A partial structural schematic diagram of the provided camera module from another perspective. The first lens barrel 1 of this application includes a first portion 11 and a second portion 12 connected to the first portion 11. A first component G1 is fixed to the first portion 11. A notch 121 is provided on the side wall of the second portion 12, through which the second lens barrel 2 is partially received within the second portion 12, such that the object side of the second component G2 is directly opposite the image side of the first component G1. The side of the second portion 12 away from the first portion 11 is connected to a first driving unit 50, so that the first driving unit 50 drives the first lens barrel 1 to move closer to or away from the second component G2. Of course, in other embodiments, the second portion 12 can also be a bracket connected between the first portion 11 and the first driving unit 50.

[0146] Specifically, the first drive unit 50 includes a first motor 51, a second motor 52, and a transmission component 53. The first end of the transmission component 53 is connected to the first motor 51, and the other end passes through the connecting block 122 on the side wall of the second part 12 and is confined to the top wall 35. The first motor 51 drives the transmission component 53 to rotate, and the rotation of the transmission component 53 causes the first lens barrel 1 to move axially along the transmission component 53, so that the first element G1 moves closer to or further away from the second element G2. The second motor 52 is connected between the first part 11 and the first element G1 for focusing the first element G1. In other words, the first motor 51 and the second motor 52 cooperate to improve the imaging quality of the optical lens 10. In this embodiment, the connecting block 122 and the second part 12 can be integrally formed or fixedly connected. The transmission component 53 is a transmission screw with an external thread on its outer circumference, and the corresponding connecting block 122 has an internal thread; the transmission screw is threadedly connected to the connecting block 122. Of course, in other embodiments, the first drive unit 50 is not limited to the structure described above, but can also be other structures, as long as it can drive the first lens barrel 1 away from or near the second component G2. The transmission member 53 can also be a transmission member 53 of other structures, and the connecting block 122 and the transmission member 53 can also be connected by other connection methods.

[0147] In some embodiments, the second part 12 has a connecting portion 123 on the side opposite to the connecting block 122, and a sliding rod 124 on the side opposite to the transmission member 53. The sliding rod 124 passes through the connecting portion 123 of the second part 12, and both ends of the sliding rod 124 are fixed to the housing 30. This allows the first lens barrel 1 to slide between the two ends of the sliding rod 124 as the transmission member 53 moves the first lens barrel 1 away from or towards the second component G2, preventing the first lens barrel 1 from shifting during movement. Simultaneously, the sliding rod 124 and the transmission member 53 are connected to both sides of the second part 12 respectively to maintain force balance during the movement of the first lens barrel 1, ensuring greater stability during movement. Of course, in other embodiments, another sliding rod can be provided on the outer side of the sidewall between the transmission member 53 and the sliding rod 124 of the second part 12, meaning the number of sliding rods is not limited to one. Alternatively, no sliding rod may be provided on the side of the second part 12 opposite to the transmission member 53.

[0148] Specifically, the first driving unit is connected to the first lens barrel 1 to drive the first element G1 located within the first lens barrel 1 to move closer to or further away from the second element G2. The second driving unit is connected to the third lens barrel 3 to drive the third element G3 located within the third lens barrel 3 to move relative to the second element G2. The third driving unit is connected to the fourth lens barrel 4 to drive the fourth element G4 located within the fourth lens barrel 4 to move the fourth element G4 between the third element G3 and the image side. The first, second, and third driving units adjust the positions of the first element G1, the third element G3, and the fourth element G4 as needed, so that the first element G1, the second element G2, the third element G3, and the fourth element G4 cooperate to adjust the total optical length of the optical lens 10 as needed, so that the optical lens 10 is in a telephoto, medium telephoto, wide-angle, or macro telephoto state, meeting the zoom range requirements of different application scenarios and improving the imaging quality of the optical lens 10.

[0149] When the first drive unit, the second drive unit, and the third drive unit drive the first element G1, the third element G3, and the fourth element G4 respectively for focusing, focusing is achieved by driving relative movement between the first element G1, the third element G3, and the fourth element G4. When the first drive unit, the second drive unit, and the third drive unit drive the first element G1, the third element G3, and the fourth element G4 respectively for image stabilization, optical image stabilization is achieved by driving the first element G1, the third element G3, and the fourth element G4 to move or rotate relative to the photosensitive element 20, and / or by driving relative movement or rotation between the first element G1, the third element G3, and the fourth element G4.

[0150] Please see Figure 9 and Figure 10When the optical lens 10 zooms, the first element G1, the third element G3, and the fourth element G4 move along the optical axis. Specifically, for example, when the optical lens 10 zooms from a wide-angle state to a telephoto state, the second element G2 remains stationary, while the first element G1, the third element G3, and the fourth element G4 move towards the object side. The distance between the first element G1 and the second element G2 increases, the distance between the second element G2 and the third element G3 decreases, and the distance between the third element G3 and the fourth element G4 first increases and then decreases, thus increasing the total optical length of the optical lens 10. When the optical lens 10 zooms from a wide-angle state to a macro focus state, the second element G2 remains stationary, the first element G1 moves towards the image side, and the third and fourth elements G4 move towards the object side. The distance between the first and second elements G1 and G2 decreases, the distance between the second and third elements G3 decreases, and the distance between the third and fourth elements G4 decreases, thus shortening the total optical length of the optical lens 10. In this embodiment, when the optical lens 10 is in telephoto and medium telephoto states, the first element G1 extends out of the outer shell 300 of the terminal 1000; when the optical lens 10 is in wide-angle and macro focus states, the first element G1 is housed inside the terminal 1000. This ensures that the optical lens 10 occupies a sufficiently small internal volume in the terminal 1000, which is beneficial for achieving a thinner terminal 1000. Of course, in other embodiments, the optical lens 10 may also extend out of the outer shell 300 of the terminal 1000 when in wide-angle state.

[0151] In some embodiments of this application, the difference between the principal ray angle of the optical lens 20 in wide-angle mode and the principal ray angle in telephoto mode is less than or equal to 3 degrees, so as to ensure that the image does not show color distortion and improve the imaging quality of the optical lens 20.

[0152] In some embodiments of this application, the difference between the principal ray angle of the optical lens 20 in the telephoto state and the principal ray angle in the micro-focus state is less than or equal to 5 degrees, so as to ensure that the image does not undergo color distortion and improve the imaging quality of the optical lens 20.

[0153] In some embodiments of this application, when the optical lens 10 is in a telephoto state, the optical lens 10 satisfies the following relationship:

[0154] 1.0 ≤ TTL / EFLmax ≤ 1.7;

[0155] Where TTL is the total optical length of the optical lens 10, that is, the total length from the object side of the lens closest to the object side to the imaging plane. EFLmax is the effective focal length of the optical lens when it is in telephoto mode.

[0156] Generally, the effective focal length of the optical lens 10 in telephoto mode is proportional to its total optical length. To achieve miniaturization, the total optical length should be as small as possible, therefore the ratio should be as small as possible. In this embodiment, by specifying the range of the ratio between the total optical length of the optical lens 10 and its effective focal length in telephoto mode, the thickness of the optical lens 10 is ensured to be sufficiently small, which is beneficial for miniaturization. When the optical lens 10 is applied to the terminal 1000, it occupies less space in the terminal 1000, thus achieving a thinner terminal 1000.

[0157] In some embodiments of this application, the optical lens 10 satisfies the following relationship:

[0158] 0.01≤IH / EFLmax≤0.1;

[0159] Wherein, IH is the image height of the optical lens 10.

[0160] The ratio of the image height of the optical lens 10 to its effective focal length in telephoto mode, as specified above, represents the telephoto capability of the optical lens 10, that is, its ability to capture images of objects located at a distance from it. This ratio ensures the telephoto capability of the optical lens 10, meeting the needs of various shooting scenarios and improving the user experience.

[0161] In some embodiments of this application, the first element G1, the second element G2, the third element G3, and the fourth element G4 collectively have N lenses with optical power, where N is an integer greater than or equal to 7 and less than or equal to 15, and at least 7 of the N lenses with optical power are aspherical. By limiting the number of lenses with optical power in the optical lens 10 to 7 to 15 (inclusive), a better imaging effect with a wide zoom range is achieved while ensuring that the size of the optical lens 10 is small enough. At the same time, limiting the number of aspherical elements in the N lenses with optical power to at least 7 effectively corrects aberrations, ensures the photographic effect of the optical lens 10, and improves the user experience.

[0162] In some embodiments of this application, the light transmission of some lenses in the first element G1, the second element G2, the third element G3, and the fourth element G4 can be increased by cutting off their edge portions. It is understood that, in a three-dimensional coordinate system established with the phone screen plane as the XY plane and the phone thickness as the Z direction, the lenses of a typical mobile phone optical lens are parallel to the XY plane. However, this application includes a refractive element G21, so the lenses of the second element G2, the third element G3, and the fourth element G4 will be parallel to the XZ plane. If the edge portions of some lenses are not cut off, the lens diameter is limited by the phone thickness; that is, the maximum size of the lens in the X and Z directions cannot exceed the phone thickness. If the edge portions of some lenses are cut off, a portion of the lens is cut along the Z-axis, and its size in the X direction is not limited by the Z-axis thickness, thus increasing the light transmission. Simultaneously, the size of the optical lens 10 is effectively reduced, which is beneficial for the miniaturization of the optical lens 10, thereby achieving a thinner terminal 1000.

[0163] In some embodiments of this application, the optical lens 10 satisfies the following relationship:

[0164] 4mm≤φmax≤15mm;

[0165] Wherein, φmax is the diameter of the largest lens among the first group G1, the second group G2, the third group G3, and the fourth group G4.

[0166] The size of the largest lens in the optical lens 10 is represented by the range of diameters of the largest lens in the first group G1, second group G2, third group G3, and fourth group G4 as specified above. When the range of diameters of the largest lens in the first group G1, second group G2, third group G3, and fourth group G4 satisfies the above relationship, it is beneficial to miniaturize the optical lens 10, so that when the optical lens 10 is applied to the terminal 1000, it occupies less space in the terminal 1000, thus achieving a thinner terminal 1000.

[0167] In this application, different components of the optical lens 10 (including the first component G1, the second component G2, the third component G3, and the fourth component G4) have different optical properties. Through the cooperation between components with different optical properties, the zoom range of the optical lens 10 is made sufficiently wide, and the optical lens 10 has a better imaging effect, while achieving the thinning of the terminal 1000. In some embodiments of this application, the first component G1 has positive optical power, the second component G2 has negative optical power, the third component G3 has positive optical power, and the fourth component G4 has positive optical power. The first component G1, the second component G2, the third component G3, and the fourth component G4 cooperate to obtain the desired optical lens 20, so that the optical lens 20 can obtain higher quality imaging.

[0168] In this application, in order to enable the optical lens 10 to achieve the required optical performance and to make the zoom range of the optical lens 10 sufficiently wide, the components cooperate with each other to enable the optical lens 10 to have a better imaging effect, while realizing the thinness of the terminal 1000. Each lens in each component has different optical performance.

[0169] In some embodiments of this application, the first element G1 satisfies the following relation:

[0170] 1.0 ≦|fs1 / ft| ≦1.7;

[0171] Where fs1 is the focal length of the first element G1, and ft is the focal length of the optical lens 10 in telephoto mode.

[0172] The above-mentioned relationship defines the range of the ratio of the focal length of the first element G1 to the focal length of the optical lens 10 in the telephoto state. In this embodiment, when the range of the ratio of the focal length of the first element G1 to the focal length of the optical lens 10 in the telephoto state satisfies the above-mentioned relationship, it is convenient for the first element G1 to cooperate with other lenses to obtain the required optical lens 10, so that the optical lens 10 has a wider zoom range and can obtain better imaging.

[0173] In some embodiments of this application, the second element G2 has a negative optical power, and the second element G2 satisfies the following relationship:

[0174] 0.1 ≦|fs2 / ft| ≦0.7;

[0175] Where fs2 is the focal length of the second element G2, and ft is the focal length of the optical lens 10 in telephoto mode.

[0176] The above-mentioned relationship defines the range of the ratio of the focal length of the second element G2 to the focal length of the optical lens 10 in the telephoto state. In this embodiment, when the range of the ratio of the second element G2 to the focal length of the optical lens 10 in the telephoto state satisfies the above-mentioned relationship, it is convenient for the second element G2 to cooperate with other lenses to obtain the required optical lens 10, so that the optical lens 10 has a wider zoom range and can obtain better imaging.

[0177] In some embodiments of this application, the third element G3 has positive optical power, and the third element G3 satisfies the following relationship:

[0178] 0.1 ≦|fs3 / ft| ≦0.7;

[0179] Where fs3 is the focal length of the third element G3, and ft is the focal length of the optical lens 10 in telephoto mode.

[0180] The above-mentioned relationship defines the range of the ratio between the focal length of the third element G3 and the focal length of the optical lens 10 in the telephoto state. In this embodiment, when the range of the ratio between the third element G3 and the focal length of the optical lens 10 in the telephoto state satisfies the above-mentioned relationship, it is convenient for the third element G3 to cooperate with other lenses to obtain the required optical lens 10, so that the optical lens 10 has a wider zoom range and can obtain better imaging.

[0181] In some embodiments of this application, the fourth element G4 has positive optical power, and the fourth element G4 satisfies the following relationship:

[0182] 0.3 ≦|fs4 / ft| ≦0.9;

[0183] Where fs4 is the focal length of the fourth element G4, and ft is the focal length of the optical lens 10 in telephoto mode.

[0184] The aforementioned formula defines the range of the ratio between the focal length of the fourth element G4 and the focal length of the optical lens 10 in its telephoto state. The fourth element G4 is mainly used to correct aberrations in the optical system, thereby improving image quality. Furthermore, in this embodiment, when the range of the ratio between the fourth element G4 and the focal length of the optical lens 10 in its telephoto state satisfies the aforementioned formula, it is convenient for the fourth element G4 to be combined with other lenses to obtain the desired optical lens 10, so that the optical lens 10 has a wider zoom range and can obtain better imaging.

[0185] In some embodiments of this application, the fourth element G4 includes a cemented lens. A cemented lens is formed by physically bonding two lenses together to create a single lens. By incorporating a cemented lens in the fourth element G4, it is beneficial to correct spherical aberration and chromatic aberration in the optical lens 10, thereby enabling the optical lens 10 to achieve better image quality.

[0186] In some embodiments of this application, the optical lens 10 includes an aperture stop located on the object side of the third element G3, that is, between the second element G2 and the third element G3, to limit the size of the light beam transmitted from the second element G2 to the third element G3, ensuring that the optical lens 10 achieves better imaging results. Of course, in other embodiments, the aperture stop can also be positioned between other adjacent elements. In some embodiments of this application, the image-side and object-side surfaces of each lens are aspherical, and each lens's image-side and object-side surface satisfies the formula:

[0187]

[0188] Where z is the aspherical elevation, r is the radial coordinate of the aspherical surface, c is the spherical curvature at the vertex of the aspherical surface, K is the quadratic surface constant, and A2, A3, A4, A5, and A6 are aspherical coefficients.

[0189] By using the above formulas, different aspherical lenses can be obtained, enabling different lenses to achieve different optical effects. Thus, by combining different aspherical lenses, a good shooting effect can be achieved.

[0190] According to the relationships and ranges given in some embodiments of this application, by the configuration of each lens in each component and the combination of lenses with specific optical designs, the zoom range of the optical lens 10 can be made sufficiently wide, and the optical lens 10 can have a better imaging effect, while realizing the thinning of the terminal 1000.

[0191] The following will combine Figures 11 to 55 Some specific, but not limiting, examples of embodiments of this application are described in more detail.

[0192] Please see Figure 11 , Figure 11 This is a schematic diagram of the structure of the optical lens 10 according to the first embodiment of this application. In this embodiment, the optical lens 10 has four components, namely the first component G1, the second component G2, the third component G3, and the fourth component G4, which are arranged sequentially from the object side to the image side. Figure 11 To facilitate understanding of the movement relationships of the first group element G1, the second group element G2, the third group element G3, and the fourth group element G4, they are set coaxially. Figure 11 The refracting element G21 does not represent the actual structure and is only an example. In reality, the second element G2, the third element G3, and the fourth element G4 are coaxial, the refracting element G21 is located on the side of the second element G2 facing away from the third element G3, and the first element G1 is located on the side of the refracting element G21 facing away from the bottom wall 33.

[0193] When the optical lens 10 is in telephoto mode, the ratio of the focal length of the first element G1 to the focal length of the optical lens 10 in telephoto mode (TTL / EFLmax) is 1.221. The ratio of the image height of the optical lens 10 to the focal length of the optical lens 10 in telephoto mode (IH / EFLmax) is 0.099. These limiting values ​​ensure that the thickness of the optical lens 10 is sufficiently small, which is beneficial to the miniaturization of the optical lens 10. When the optical lens 10 is applied to the terminal 1000, it occupies less space in the terminal 1000, realizing the thinness of the terminal 1000. At the same time, it also ensures that the optical lens 10 can maintain its telephoto capability to meet different shooting scenarios and improve the user experience.

[0194] The first element G1 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs1 / ft|, is 1.40. The second element G2 has negative optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs2 / ft|, is 0.28. The third element G3 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs3 / ft|, is 0.30. The fourth element G4 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs4 / ft|, is 0.67. Through the coordination of elements with different optical properties, the optical lens 10 achieves a sufficiently wide zoom range and good imaging effect, while also enabling the terminal 1000 to be made thinner.

[0195] The optical lens 10 comprises eleven lens elements. Specifically, the first element G1 includes a first lens element G11, and the first lens element of the first element G1 is the first lens element G11; the second element G2 includes a refractive element G21, a second lens element G22, and a third lens element G23, and the first lens element of the second element G2 is the refractive element G21, the second lens element of the second element G2 is the second lens element G22, and the third lens element of the second element G2 is the third lens element G23; the third element G3 includes a fourth lens element G31, a fifth lens element G32, a sixth lens element G33, and a seventh lens element G34, and the third element... The first lens element of element G3 is the fourth lens element G31, the second lens element of element G3 is the fifth lens element G32, the third lens element of element G3 is the sixth lens element G33, and the fourth lens element of element G3 is the seventh lens element G34. Element G4 includes an eighth lens element G41, a ninth lens element G42, and a tenth lens element G43. The first lens element of element G4 is the eighth lens element G41, the second lens element is the ninth lens element G42, and the third lens element is the tenth lens element G43. In this embodiment, the diameter of the largest lens element in the optical lens 10 is 13.74 mm to ensure the miniaturization of the optical lens 10.

[0196] Among them, the first lens G11 has positive optical power, the second lens G22 has positive optical power, the third lens G23 has negative optical power, the fourth lens G31 has positive optical power, the fifth lens G32 has positive optical power, the sixth lens G33 has negative optical power, the seventh lens G34 has negative optical power, the eighth lens G41 has positive optical power, the ninth lens G42 has negative optical power, and the tenth lens G43 has positive optical power. Through the cooperation of different lenses, the optical lens 10 achieves a sufficiently wide zoom range and good imaging effect, while also enabling the thinning of the terminal 1000.

[0197] Please see Figure 12 and Figure 13 In this embodiment, when the optical lens 10 zooms, the first element G1, the third element G3, and the fourth element G4 move along the optical axis. Specifically, for example, when the optical lens 10 zooms from a wide-angle state to a telephoto state, the second element G2 remains stationary, while the first element G1, the third element G3, and the fourth element G4 move towards the object side. The distance between the first element G1 and the second element G2 increases, the distance between the second element G2 and the third element G3 decreases, and the distance between the third element G3 and the fourth element G4 first increases and then decreases, thus increasing the total optical length of the optical lens 10. When the optical lens 10 zooms from a wide-angle state to a macro state, the second element G2 remains stationary, the first element G1 moves towards the image side, and the third element G3 and the fourth element G4 move towards the object side. The distance between the first element G1 and the second element G2 decreases, the distance between the second element G2 and the third element G3 decreases, and the distance between the third element G3 and the fourth element G4 decreases, thus shortening the total optical length of the optical lens 10.

[0198] Based on the above relationship, the basic parameters of the first embodiment of this application are shown in Table 1 below.

[0199] Table 1 Basic parameters of the optical lens 10 in the first embodiment

[0200]

[0201]

[0202] The meanings of the symbols in the table are as follows.

[0203] W: Optical lens 10 is in wide-angle mode.

[0204] C: Optical lens 10 is in the mid-range position.

[0205] T: Optical lens 10 is in telephoto mode.

[0206] M: Optical lens 10 is in a micro-focus state.

[0207] f: Total focal length of optical lens 10.

[0208] Extension length: The distance between the first group G1 and the second group G2.

[0209] Fixed length: The distance between the refracting element G21 and the photosensitive element 20.

[0210] It should be noted that, unless otherwise specified, the meanings of the symbols mentioned above in this application are the same when they appear again in the future, and will not be repeated hereafter.

[0211] Table 2 shows the radius of curvature, thickness, refractive index, and Abbe number of each component lens of the optical lens 10 in the first embodiment of this application.

[0212] Table 2. Radius of curvature, thickness, refractive index, and Abbe number of each component lens of the optical lens 10 in the first embodiment.

[0213]

[0214]

[0215] The meanings of the symbols in the table above are as follows.

[0216] R1: The radius of curvature of the object side surface of the first lens G11.

[0217] R2: Radius of curvature of the image side of the first lens G11.

[0218] R3: Radius of curvature of the object side surface of the refracting element G21.

[0219] R4: Radius of curvature of the image side of the refracting element G21.

[0220] R5: The radius of curvature of the object side surface of the second lens G22.

[0221] R6: Radius of curvature of the image side of the second lens G22.

[0222] R7: The radius of curvature of the object side surface of the third lens G23.

[0223] R8: Radius of curvature of the image side of the third lens G23.

[0224] R9: The radius of curvature of the object side surface of the fourth lens G31.

[0225] R10: Radius of curvature of the image side of the fourth lens G31.

[0226] R11: The radius of curvature of the object side surface of the fifth lens G32.

[0227] R12: Radius of curvature of the image side of the fifth lens G32.

[0228] R13: The radius of curvature of the object side surface of the sixth lens G33.

[0229] R14: Radius of curvature of the image side of the sixth lens G33.

[0230] R15: The radius of curvature of the object side surface of the seventh lens G34.

[0231] R16: Radius of curvature of the image side of the seventh lens G34.

[0232] R17: Radius of curvature of the object side surface of the eighth lens G41.

[0233] R18: Radius of curvature of the image side of the eighth lens G41.

[0234] R19: The radius of curvature of the object side surface of the ninth lens G42.

[0235] R20: Radius of curvature of the image side of the ninth lens G42.

[0236] R21: The radius of curvature of the object side surface of the tenth lens G43.

[0237] R22: Radius of curvature of the image side of the tenth lens G43.

[0238] R23: Radius of curvature of the object-side surface of infrared filter 40.

[0239] R24: Radius of curvature of the image side of infrared filter 40.

[0240] d1: On-axis thickness of the first lens G11.

[0241] d2: On-axis thickness of the refracting element G21.

[0242] d3: On-axis thickness of the second lens G22.

[0243] d4: On-axis thickness of the third lens G23.

[0244] d5: On-axis thickness of the fourth lens G31.

[0245] d6: On-axis thickness of the fifth lens G32.

[0246] d7: On-axis thickness of the sixth lens G33.

[0247] d8: On-axis thickness of the seventh lens G34.

[0248] d9: On-axis thickness of the eighth lens G41.

[0249] d10: On-axis thickness of the ninth lens G42.

[0250] d11: On-axis thickness of the tenth lens G43.

[0251] d12: Axial thickness of the filter.

[0252] a1: The axial distance between the image side of the first lens G11 and the object side of the refracting element G21.

[0253] a2: The on-axis distance between the image side of the refracting element G21 and the object side of the second lens G22.

[0254] a3: The on-axis distance between the image side of the second lens G22 and the object side of the third lens G23.

[0255] a4: The on-axis distance between the image side of the third lens G23 and the object side of the fourth lens G31.

[0256] a5: The on-axis distance between the image side of the fourth lens G31 and the object side of the fifth lens G32.

[0257] a6: The on-axis distance between the image side of the fifth lens G32 and the object side of the sixth lens G33.

[0258] a7: The on-axis distance between the image side of the sixth lens G33 and the object side of the seventh lens G34.

[0259] a8: The on-axis distance between the image side of the seventh lens G34 and the object side of the eighth lens G41.

[0260] a9: The on-axis distance between the image side of the eighth lens G41 and the object side of the ninth lens G42.

[0261] a10: The on-axis distance between the image side of the ninth lens G42 and the object side of the tenth lens G43.

[0262] a11: The on-axis distance between the image side of the tenth lens G43 and the object side of the infrared filter 40.

[0263] a12: The on-axis distance between the image side of the infrared filter 40 and the object side of the photosensitive element 20.

[0264] n1: The refractive index of the first lens G11.

[0265] n2: The refractive index of the refracting element G21.

[0266] n3: The refractive index of the second lens G22.

[0267] n4: The refractive index of the third lens G23.

[0268] n5: The refractive index of the fourth lens, G31.

[0269] n6: The refractive index of the fifth lens, G32.

[0270] n7: The refractive index of the sixth lens, G33.

[0271] n8: The refractive index of the seventh lens, G34.

[0272] n9: The refractive index of the eighth lens, G41.

[0273] n10: The refractive index of the ninth lens, G42.

[0274] n11: The refractive index of the tenth lens, G43.

[0275] n12: The refractive index of infrared filter 40.

[0276] v1: Abbe number of the first lens G11.

[0277] v2: Abbe number of the refractive element G21.

[0278] v3: Abbe number of the second lens G22.

[0279] v4: Abbe number of the third lens G23.

[0280] v5: Abbe number of the fourth lens G31.

[0281] v6: Abbe number of the fifth lens G32.

[0282] v7: Abbe number of the sixth lens G33.

[0283] v8: Abbe number of the seventh lens G34.

[0284] v9: Abbe number of the eighth lens G41.

[0285] v10: Abbe number of the ninth lens G42.

[0286] v11: Abbe number of the tenth lens G43.

[0287] v12: Abbe number of infrared filter 40.

[0288] It should be noted that, unless otherwise specified, the meanings of the symbols mentioned above in this application will have the same meaning when they reappear in the future, and will not be repeated hereafter. The sign of the radius of curvature indicates whether the optical surface is convex towards the object side or the image side. When the optical surface (including the object side or the image side) is convex towards the object side, the radius of curvature of the optical surface is a positive value; when the optical surface (including the object side or the image side) is convex towards the image side, it is equivalent to the optical surface being concave towards the object side, and the radius of curvature of the optical surface is a negative value.

[0289] Table 3 shows the aspherical coefficients of the optical lens 10 in this embodiment. The optical lens 10 in this embodiment has 14 aspherical surfaces, as shown in Table 3.

[0290] Table 3 Aspherical coefficients of the optical lens 10 in the first embodiment

[0291] type K A2 A3 A4 A5 A6 R1 even aspherical surface 0.00E+00 5.03E-05 1.95E-07 6.80E-09 -2.03E-10 1.16E-12 R2 even aspherical surface 0.00E+00 6.56E-05 1.77E-07 4.53E-09 -2.02E-10 1.37E-12 R5 even aspherical surface 0.00E+00 -4.38E-03 1.27E-04 5.52E-06 -6.16E-07 4.52E-08 R6 even aspherical surface 0.00E+00 -3.59E-03 -2.24E-06 1.54E-05 -9.07E-07 4.69E-08 R7 even aspherical surface 0.00E+00 -2.60E-03 1.34E-04 -1.47E-05 1.60E-06 -5.94E-08 R8 even aspherical surface 0.00E+00 -5.58E-03 4.59E-04 -4.44E-05 2.81E-06 -7.92E-08 R11 even aspherical surface 0.00E+00 2.47E-05 8.18E-05 3.67E-06 2.82E-07 -3.42E-08 R12 even aspherical surface 0.00E+00 1.88E-03 8.68E-05 1.77E-06 -1.23E-06 3.62E-08 R13 even aspherical surface 0.00E+00 3.56E-03 -3.28E-05 8.45E-06 -1.96E-06 3.82E-08 R14 even aspherical surface 0.00E+00 -1.32E-03 7.13E-04 7.22E-05 3.20E-06 -1.58E-07 R15 even aspherical surface 0.00E+00 8.63E-04 3.95E-04 6.81E-05 2.16E-06 -9.15E-07 R16 even aspherical surface 0.00E+00 7.88E-03 -3.22E-05 -5.18E-06 5.83E-07 -7.43E-07 R21 even aspherical surface 0.00E+00 1.40E-03 3.55E-07 2.98E-05 -3.41E-06 2.40E-07 R22 even aspherical surface 0.00E+00 1.85E-03 -4.37E-05 4.86E-05 -5.89E-06 4.02E-07

[0292] Where K is the quadratic surface constant, and the symbols A2, A3, A4, A5, A6, etc., represent aspherical coefficients. It should be noted that all parameters in the table are expressed in scientific notation. For example, -1.07E-01 means -1.07 × 10⁻⁶. -1 -4.11E-02 refers to -4.11 × 10⁻⁶. -2 It should be noted that the symbols K, A2, A3, A4, A5, A6, etc., in this application, when they appear again in subsequent applications, will have the same meaning as here unless otherwise explained, and will not be repeated hereafter.

[0293] By substituting the above parameters into the formula:

[0294]

[0295] That is, it is possible to design each lens of the optical lens 10 of this embodiment, wherein z is the sagitta of the aspherical surface, r is the radial coordinate of the aspherical surface, and c is the spherical curvature of the vertex of the aspherical surface.

[0296] In this embodiment, the different lenses of the optical lens 10 designed with the above parameters can each play a different role, thereby obtaining an optical lens 10 with good imaging quality through the cooperation of the lenses.

[0297] Table 4 shows the object distance and component spacing of the optical lens 10 in the telephoto, medium telephoto, wide-angle, and macro telephoto states of this embodiment.

[0298] Table 4 shows the object distance and component spacing of the optical lens 10 in the first embodiment when it is in telephoto, medium telephoto, wide-angle, and macro modes.

[0299] W C T M a0 Inf Inf Inf 50mm a1 1.07mm 6.84mm 9.30mm 0.10mm a4 7.16mm 3.35mm 0.83mm 6.94mm a8 3.30mm 4.71mm 3.40mm 0.81mm a11 0.53mm 2.93mm 6.76mm 3.25mm

[0300] Figures 14-25 This is a characterization diagram of the optical performance of the optical lens 10 according to the first embodiment.

[0301] Specifically, Figure 14 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in a telephoto state. Figure 15 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in the mid-focus state. Figure 16The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in a wide-angle state. Figure 17 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in a micro-focus state. Figures 14-17 The vertical axis represents the normalized pupil coordinates, and the horizontal axis represents the aberrations along the axial direction, in millimeters. From Figures 14-17 As can be seen from this embodiment, the axial aberration of the optical lens 10 in each state is controlled within a very small range.

[0302] Figure 18 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in telephoto mode. Figure 19 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in the mid-focus state. Figure 20 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in a wide-angle state. Figure 21 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the first embodiment when the optical lens 10 is in a micro-focus state. Figures 18-21 The vertical axis represents the field of view angle in degrees (°), and the horizontal axis is in micrometers (μm). The unmarked dashed line represents the diffraction limit. Figures 18-21 The dashed line represents the diffraction limit range of the optical lens 10. From Figures 18-21 As can be seen, the lateral chromatic aberration of light of each wavelength in each state after passing through the optical lens 10 of the first embodiment is basically within the diffraction limit. That is, the lateral chromatic aberration of light of each wavelength in each state after passing through the optical lens 10 of the first embodiment will not have a significant impact on the imaging quality of the optical lens 10.

[0303] Figures 22-25 Schematic diagrams of optical distortion of the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro focal length states are shown respectively, to illustrate the difference between the image distortion and the ideal shape after light passes through the optical lens 10. Figures 22-25The solid lines in the left-hand diagram represent the field curvature of 555nm light after passing through the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro modes, respectively. Figures 22-25 The dashed lines represent the field curvature diagrams of the sagittal direction of 555nm light after passing through the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro focal length states, respectively. Figures 22-25 The diagrams on the right show the optical distortion of 555nm light after passing through the optical lens 10 of the first embodiment in telephoto, medium telephoto, wide-angle, and macro focal length states. Figures 22-25 As can be seen, in this embodiment, the optical system controls the distortion within the range that can be perceived by the naked eye.

[0304] The optical lens 10 provided in this embodiment, through the configuration of each lens in each component and the combination of lenses with specific optical designs, can make the optical lens 10 miniaturized and have a sufficiently wide zoom range, and make the optical lens 10 have a better imaging effect, while realizing the thinning of the terminal 1000.

[0305] Please see Figure 26 , Figure 26 This is a schematic diagram of the structure of the optical lens 10 according to the second embodiment of this application. In this embodiment, the optical lens 10 has four components, namely the first component G1, the second component G2, the third component G3, and the fourth component G4, which are arranged sequentially from the object side to the image side. Figure 26 To facilitate understanding of the movement relationships of the first group element G1, the second group element G2, the third group element G3, and the fourth group element G4, they are set coaxially. Figure 26 The refracting element G21 does not represent the actual structure and is only an example. In reality, the second element G2, the third element G3, and the fourth element G4 are coaxial, the refracting element G21 is located on the side of the second element G2 facing away from the third element G3, and the first element G1 is located on the side of the refracting element G21 facing away from the bottom wall 33.

[0306] When the optical lens 10 is in telephoto mode, the ratio of the focal length of the first element G1 to the focal length of the optical lens 10 in telephoto mode (TTL / EFLmax) is 1.478. The ratio of the image height of the optical lens 10 to the focal length of the optical lens 10 in telephoto mode (IH / EFLmax) is 0.097. These limiting values ​​ensure that the thickness of the optical lens 10 is sufficiently small, which is beneficial to the miniaturization of the optical lens 10. When the optical lens 10 is applied to the terminal 1000, it occupies less space in the terminal 1000, realizing the thinness of the terminal 1000. At the same time, it also ensures that the optical lens 10 can maintain its telephoto capability to meet different shooting scenarios and improve the user experience.

[0307] The first element G1 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs1 / ft|, is 1.49. The second element G2 has negative optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs2 / ft|, is 0.301. The third element G3 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs3 / ft|, is 0.313. The fourth element G4 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs4 / ft|, is 0.723. Through the coordination of elements with different optical properties, the optical lens 10 achieves a sufficiently wide zoom range and good imaging effect, while also enabling the terminal 1000 to be made thinner.

[0308] The optical lens 10 comprises twelve lens elements. Specifically, the first element G1 includes a first lens element G11, and the first lens element of the first element G1 is the first lens element G11; the second element G2 includes a refractive element G21, a second lens element G22, a third lens element G23, and an eleventh lens element G24, and the first lens element of the second element G2 is the refractive element G21, the second lens element of the second element G2 is the second lens element G22, the third lens element of the second element G2 is the third lens element G23, and the fourth lens element of the second element G2 is the eleventh lens element G24; the third element G3 includes a fourth lens element G31, a fifth lens element G32, and a sixth lens element G31. The third element G3 includes the fourth element G31, the fifth element G32, the sixth element G33, and the seventh element G34. The fourth element G4 includes the eighth element G41, the ninth element G42, and the tenth element G43. The first element of the fourth element G4 is the eighth element G41, the second element is the ninth element G42, and the third element is the tenth element G43. In this embodiment, the diameter of the largest lens element in the optical lens 10 is 12.79 mm to ensure the miniaturization of the optical lens 10.

[0309] Among them, the first lens G11 has positive optical power, the second lens G22 has positive optical power, the third lens G23 has negative optical power, the fourth lens G31 has positive optical power, the fifth lens G32 has positive optical power, the sixth lens G33 has negative optical power, the seventh lens G34 has negative optical power, the eighth lens G41 has positive optical power, the ninth lens G42 has negative optical power, the tenth lens G43 has positive optical power, and the eleventh lens G24 has negative optical power. Through the cooperation of different lenses, the optical lens 10 achieves a sufficiently wide zoom range and good imaging effect, while also enabling the terminal 1000 to be thinner.

[0310] Please see Figure 27 and Figure 28In this embodiment, when the optical lens 10 zooms, the first element G1, the third element G3, and the fourth element G4 move along the optical axis. Specifically, for example, when the optical lens 10 zooms from a wide-angle state to a telephoto state, the second element G2 remains stationary, while the first element G1, the third element G3, and the fourth element G4 move towards the object side. The distance between the first element G1 and the second element G2 increases, the distance between the second element G2 and the third element G3 decreases, and the distance between the third element G3 and the fourth element G4 first increases and then decreases, thus increasing the total optical length of the optical lens 10. When the optical lens 10 zooms from a wide-angle state to a macro state, the second element G2 remains stationary, the first element G1 moves towards the image side, and the third element G3 and the fourth element G4 move towards the object side. The distance between the first element G1 and the second element G2 decreases, the distance between the second element G2 and the third element G3 decreases, and the distance between the third element G3 and the fourth element G4 decreases, thus shortening the total optical length of the optical lens 10.

[0311] Based on the above relationship, the basic parameters of the second embodiment of this application are shown in Table 5 below.

[0312] Table 5 Basic parameters of the optical lens 10 in the second embodiment

[0313]

[0314] Table 6 shows the radius of curvature, thickness, refractive index, and Abbe number of each component lens of the optical lens 10 in the second embodiment of this application.

[0315] Table 6 shows the radius of curvature, thickness, refractive index, and Abbe number of each component lens of the optical lens 10 in the second embodiment.

[0316]

[0317]

[0318] The meanings of the symbols in the table above are as follows.

[0319] R25: The radius of curvature of the object side surface of the eleventh lens, G24.

[0320] R26: Radius of curvature of the image side of the eleventh lens G24.

[0321] d13: On-axis thickness of the eleventh lens, G24.

[0322] a4: The on-axis distance between the image side of the third lens G23 and the object side of the eleventh lens G24.

[0323] a13: The on-axis distance between the image side of the eleventh lens G24 and the object side of the fourth lens G31.

[0324] n13: The refractive index of the eleventh lens, G24.

[0325] v13: Abbe number of the eleventh lens G24.

[0326] Table 7 shows the aspherical coefficients of the optical lens 10 in this embodiment. The optical lens 10 in this embodiment has 15 aspherical surfaces, as shown in Table 7.

[0327] Table 7 Aspherical coefficients of the optical lens 10 in the second embodiment

[0328] type K A2 A3 A4 A5 A6 R1 even aspherical surface 0.00E+00 5.03E-05 1.95E-07 6.80E-09 -2.03E-10 1.16E-12 R2 even aspherical surface 0.00E+00 6.56E-05 1.77E-07 4.53E-09 -2.02E-10 1.37E-12 R5 even aspherical surface 0.00E+00 -4.38E-03 1.27E-04 5.52E-06 -6.16E-07 4.52E-08 R6 even aspherical surface 0.00E+00 -3.59E-03 -2.24E-06 1.54E-05 -9.07E-07 4.69E-08 R7 even aspherical surface 0.00E+00 -2.60E-03 1.34E-04 -1.47E-05 1.60E-06 -5.94E-08 R8 even aspherical surface 0.00E+00 -5.58E-03 4.59E-04 -4.44E-05 2.81E-06 -7.92E-08 R11 even aspherical surface 0.00E+00 2.47E-05 8.18E-05 3.67E-06 2.82E-07 -3.42E-08 R12 even aspherical surface 0.00E+00 1.88E-03 8.68E-05 1.77E-06 -1.23E-06 3.62E-08 R13 even aspherical surface 0.00E+00 3.56E-03 -3.28E-05 8.45E-06 -1.96E-06 3.82E-08 R14 even aspherical surface 0.00E+00 -1.32E-03 7.13E-04 7.22E-05 3.20E-06 -1.58E-07 R15 even aspherical surface 0.00E+00 8.63E-04 3.95E-04 6.81E-05 2.16E-06 -9.15E-07 R16 even aspherical surface 0.00E+00 7.88E-03 -3.22E-05 -5.18E-06 5.83E-07 -7.43E-07 R21 even aspherical surface 0.00E+00 1.40E-03 3.55E-07 2.98E-05 -3.41E-06 2.40E-07 R22 even aspherical surface 0.00E+00 1.85E-03 -4.37E-05 4.86E-05 -5.89E-06 4.02E-07

[0329] By substituting the above parameters into the formula:

[0330]

[0331] That is, it is possible to design each lens of the optical lens 10 of this embodiment, wherein z is the sagitta of the aspherical surface, r is the radial coordinate of the aspherical surface, and c is the spherical curvature of the vertex of the aspherical surface.

[0332] In this embodiment, the different lenses of the optical lens 10 designed with the above parameters can each play a different role, thereby obtaining an optical lens 10 with good imaging quality through the cooperation of the lenses.

[0333] Table 8 shows the object distance and component spacing of the optical lens 10 in this embodiment when it is in telephoto, medium telephoto, wide-angle, and macro telephoto states, as shown in Table 8.

[0334] Table 8 shows the object distance and component spacing of the optical lens 10 in the second embodiment when it is in telephoto, medium telephoto, wide-angle, and macro modes.

[0335] W C T M a0 Inf Inf Inf 50mm a1 0.13mm 6.69mm 9.85mm 0.12mm a13 6.73mm 3.26mm 0.73mm 7.24mm a8 3.44mm 4.81mm 3.86mm 0.43mm a11 0.71mm 2.81mm 6.29mm 3.20mm

[0336] Figures 29-40 This is a characterization diagram of the optical performance of the optical lens 10 according to the second embodiment.

[0337] Specifically, Figure 29 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in a telephoto state. Figure 30 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in the mid-focus state. Figure 31The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in a wide-angle state. Figure 32 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in a micro-focus state. Figures 29-32 The vertical axis represents the normalized pupil coordinates, and the horizontal axis represents the aberrations along the axial direction, in millimeters. From Figures 29-32 As can be seen from this embodiment, the axial aberration of the optical lens 10 in each state is controlled within a very small range.

[0338] Figure 33 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in telephoto mode. Figure 34 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in the mid-focus state. Figure 35 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in a wide-angle state. Figure 36 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the second embodiment when the optical lens 10 is in a micro-focus state. Figures 33-36 The vertical axis represents the field of view angle, in degrees (°), and the horizontal axis is in micrometers (μm). Figures 32-35 The unmarked dashed lines indicate the diffraction limit of optical lens 10. From... Figures 33-36 As can be seen, the lateral chromatic aberration of light of each wavelength in each state after passing through the optical lens 10 of the second embodiment is basically within the diffraction limit. That is, the lateral chromatic aberration of light of each wavelength in each state after passing through the optical lens 10 of the second embodiment will not have a significant impact on the imaging quality of the optical lens 10.

[0339] Figures 37-40 Schematic diagrams of optical distortion of the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro focal length states are shown respectively, to illustrate the difference between the image distortion and the ideal shape after light passes through the optical lens 10. Figures 37-40The solid lines in the left-hand diagram represent the field curvature of 555nm light after passing through the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro modes, respectively. Figures 37-40 The dashed lines represent the field curvature diagrams of the sagittal direction of 555nm light after passing through the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro focal length states, respectively. Figures 37-40 The diagrams on the right show the optical distortion of 555nm light after passing through the optical lens 10 of the second embodiment in telephoto, medium telephoto, wide-angle, and macro focal length states. Figures 37-40 As can be seen, in this embodiment, the optical system controls the distortion within the range that can be perceived by the naked eye.

[0340] The optical lens 10 provided in this embodiment, through the configuration of each lens in each component and the combination of lenses with specific optical designs, can make the optical lens 10 miniaturized and have a sufficiently wide zoom range, and make the optical lens 10 have a better imaging effect, while realizing the thinning of the terminal 1000.

[0341] Please see Figure 41 , Figure 41 This is a schematic diagram of the structure of the optical lens 10 according to the third embodiment of this application. In this embodiment, the optical lens 10 has four components, namely the first component G1, the second component G2, the third component G3, and the fourth component G4, which are arranged sequentially from the object side to the image side. Figure 41 To facilitate understanding of the movement relationships of the first group element G1, the second group element G2, the third group element G3, and the fourth group element G4, they are set coaxially. Figure 41 The refracting element G21 does not represent the actual structure and is only an example. In reality, the second element G2, the third element G3, and the fourth element G4 are coaxial, the refracting element G21 is located on the side of the second element G2 facing away from the third element G3, and the first element G1 is located on the side of the refracting element G21 facing away from the bottom wall 33.

[0342] When the optical lens 10 is in telephoto mode, the ratio of the focal length of the first element G1 to the focal length of the optical lens 10 in telephoto mode (TTL / EFLmax) is 1.488. The ratio of the image height of the optical lens 10 to the focal length of the optical lens 10 in telephoto mode (IH / EFLmax) is 0.097. These limiting values ​​ensure that the thickness of the optical lens 10 is sufficiently small, which is beneficial to the miniaturization of the optical lens 10. When the optical lens 10 is applied to the terminal 1000, it occupies less space in the terminal 1000, realizing the thinness of the terminal 1000. At the same time, it also ensures that the optical lens 10 can maintain its telephoto capability to meet different shooting scenarios and improve the user experience.

[0343] The first element G1 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs1 / ft|, is 1.38. The second element G2 has negative optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs2 / ft|, is 0.27. The third element G3 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs3 / ft|, is 0.29. The fourth element G4 has positive optical power, and the ratio of its focal length to the focal length of the optical lens 10 in telephoto mode, |fs4 / ft|, is 0.65. Through the coordination of elements with different optical properties, the optical lens 10 achieves a sufficiently wide zoom range and good imaging effect, while also enabling the terminal 1000 to be made thinner.

[0344] The optical lens 10 comprises eleven lens elements. Specifically, the first element G1 includes a first lens element G11, and the first lens element of the first element G1 is the first lens element G11; the second element G2 includes a refractive element G21, a second lens element G22, and a third lens element G23, and the first lens element of the second element G2 is the refractive element G21, the second lens element of the second element G2 is the second lens element G22, and the third lens element of the second element G2 is the third lens element G23; the third element G3 includes a fourth lens element G31, a fifth lens element G32, a sixth lens element G33, and a seventh lens element G34, and the third element... The first lens element of element G3 is the fourth lens element G31, the second lens element of element G3 is the fifth lens element G32, the third lens element of element G3 is the sixth lens element G33, and the fourth lens element of element G3 is the seventh lens element G34. Element G4 includes an eighth lens element G41, a ninth lens element G42, and a tenth lens element G43. The first lens element of element G4 is the eighth lens element G41, the second lens element is the ninth lens element G42, and the third lens element is the tenth lens element G43. In this embodiment, the diameter of the largest lens element in the optical lens 10 is 13.78 mm to ensure the miniaturization of the optical lens 10. The eighth lens element G41 is a cemented lens, which helps to correct chromatic aberration in the optical lens 10, thereby enabling the optical lens 10 to achieve better image quality.

[0345] Among them, the first lens G11 has positive optical power, the second lens G22 has positive optical power, the third lens G23 has negative optical power, the fourth lens G31 has positive optical power, the fifth lens G32 has positive optical power, the sixth lens G33 has negative optical power, the seventh lens G34 has negative optical power, the eighth lens G41 has positive optical power, the ninth lens G42 has negative optical power, the tenth lens G43 has positive optical power, and the eleventh lens G24 has negative optical power. Through the cooperation of different lenses, the optical lens 10 achieves a sufficiently wide zoom range and good imaging effect, while also enabling the terminal 1000 to be thinner.

[0346] Please see Figure 42 and Figure 43In this embodiment, when the optical lens 10 zooms, the first element G1, the third element G3, and the fourth element G4 move along the optical axis. Specifically, for example, when the optical lens 10 zooms from a wide-angle state to a telephoto state, the second element G2 remains stationary, while the first element G1, the third element G3, and the fourth element G4 move towards the object side. The distance between the first element G1 and the second element G2 increases, the distance between the second element G2 and the third element G3 decreases, and the distance between the third element G3 and the fourth element G4 first increases and then decreases, thus increasing the total optical length of the optical lens 10. When the optical lens 10 zooms from a wide-angle state to a macro state, the second element G2 remains stationary, the first element G1 moves towards the image side, and the third element G3 and the fourth element G4 move towards the object side. The distance between the first element G1 and the second element G2 decreases, the distance between the second element G2 and the third element G3 decreases, and the distance between the third element G3 and the fourth element G4 decreases, thus shortening the total optical length of the optical lens 10.

[0347] Based on the above relationship, the basic parameters of the third embodiment of this application are shown in Table 9 below.

[0348] Table 9 Basic parameters of the optical lens 10 in the third embodiment

[0349]

[0350] Table 10 shows the radius of curvature, thickness, refractive index, and Abbe number of each component lens of the optical lens 10 in the third embodiment of this application.

[0351] Table 10 shows the radius of curvature, thickness, refractive index, and Abbe number of each component lens of the optical lens 10 in the third embodiment.

[0352]

[0353]

[0354] The meanings of the symbols in the table above are as follows.

[0355] R27: Radius of curvature of the object side of the bonding film of the eighth lens G41.

[0356] R17: Radius of curvature of the image side of the bonding film of the eighth lens G41.

[0357] R18: Radius of curvature of the image side of the eighth lens, G41.

[0358] d14: On-axis thickness of the bonding film for the eighth lens G41.

[0359] d9: On-axis thickness of the eighth lens, G41.

[0360] n14: The refractive index of the bonding film for the eighth lens G41.

[0361] n9: The refractive index of the eighth lens, G41.

[0362] v14: Abbe number of the bonding film for the eighth lens G41.

[0363] v9: Abbe number of the eighth lens, G41.

[0364] Table 11 shows the aspherical coefficients of the optical lens 10 in this embodiment. The optical lens 10 in this embodiment has 14 aspherical surfaces, as shown in Table 11.

[0365] Table 11 Aspherical coefficients of the optical lens 10 in the third embodiment

[0366]

[0367]

[0368] By substituting the above parameters into the formula:

[0369]

[0370] That is, it is possible to design each lens of the optical lens 10 of this embodiment, wherein z is the sagitta of the aspherical surface, r is the radial coordinate of the aspherical surface, and c is the spherical curvature of the vertex of the aspherical surface.

[0371] In this embodiment, the different lenses of the optical lens 10 designed with the above parameters can each play a different role, thereby obtaining an optical lens 10 with good imaging quality through the cooperation of the lenses.

[0372] Table 12 shows the object distance and component spacing of the optical lens 10 in this embodiment when it is in telephoto, medium telephoto, wide-angle, and macro telephoto states, as shown in Table 12.

[0373] Table 12 shows the object distance and component spacing of the optical lens 10 in the third embodiment when it is in telephoto, medium telephoto, wide-angle, and macro modes.

[0374] W C T M a0 Inf Inf Inf 50mm a1 0.17mm 6.46mm 10.54mm 1.45mm a4 6.13mm 3.16mm 0.75mm 6.65mm a8 3.41mm 4.06mm 3.21mm 0.48mm a11 0.72mm 3.04mm 6.30mm 3.14mm

[0375] Figures 44-55 This is a characterization diagram of the optical performance of the optical lens 10 according to the third embodiment.

[0376] Specifically, Figure 44The axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm, respectively, after passing through the optical lens 10 of the third embodiment in the telephoto state are shown. Figure 45 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the third embodiment when the optical lens 10 is in the mid-focus state. Figure 46 The diagram shows the axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the third embodiment when the optical lens 10 is in a wide-angle state. Figure 47 The axial aberrations of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm, respectively, after passing through the optical lens 10 of the third embodiment in a micro-focused state are shown. Figures 44-47 The vertical axis represents the normalized pupil coordinates, and the horizontal axis represents the aberrations along the axial direction, in millimeters. From Figures 44-47 As can be seen from this embodiment, the axial aberration of the optical lens 10 in each state is controlled within a very small range.

[0377] Figure 48 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the third embodiment when the optical lens 10 is in telephoto mode. Figure 49 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the third embodiment when the optical lens 10 is in the mid-focus state. Figure 50 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the third embodiment when the optical lens 10 is in a wide-angle state. Figure 51 The diagram shows the lateral chromatic aberration of light with wavelengths of 650nm, 610nm, 555nm, 510nm, and 470nm after passing through the optical lens 10 of the third embodiment when the optical lens 10 is in a micro-focus state. Figures 48-51 The vertical axis represents the field of view angle, in degrees (°), and the horizontal axis is in micrometers (μm). Figures 48-51 The unmarked dashed lines indicate the diffraction limit of optical lens 10. From... Figures 48-51As can be seen, the lateral chromatic aberration of light of each wavelength in each state after passing through the optical lens 10 of the third embodiment is within the diffraction limit. That is, the lateral chromatic aberration of light of each wavelength in each state after passing through the optical lens 10 of the third embodiment will not have a significant impact on the imaging quality of the optical lens 10.

[0378] Figures 52-55 Schematic diagrams of optical distortion of the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro focal length states are shown respectively, to illustrate the difference between the image distortion and the ideal shape after light passes through the optical lens 10. Figures 52-55 The solid lines in the left-hand diagram represent the field curvature of 555nm light after passing through the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro modes, respectively. Figures 52-55 The dashed lines represent the field curvature diagrams of the sagittal direction of 555nm light after passing through the optical lens 10 in telephoto, medium telephoto, wide-angle, and macro focal length states, respectively. Figures 52-55 The diagrams on the right show the optical distortion of 555nm light after passing through the optical lens 10 of the third embodiment in telephoto, medium telephoto, wide-angle, and macro focal length states. Figures 52-55 As can be seen, in this embodiment, the optical system controls the distortion within the range that can be perceived by the naked eye.

[0379] The optical lens 10 provided in this embodiment, through the configuration of each lens in each component and the combination of lenses with specific optical designs, can make the optical lens 10 miniaturized and have a sufficiently wide zoom range, and make the optical lens 10 have a better imaging effect, while realizing the thinning of the terminal 1000.

[0380] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An optical lens characterized in that, The optical lens comprises, from the object side to the image side, a first group of elements, a second group of elements, a third group of elements and a fourth group of elements, each of the first group of elements to the fourth group of elements comprises at least one lens, the second group of elements comprises a light folding member for changing the transmission route of light transmitted from the first group of elements, the third group of elements and the fourth group of elements are coaxially arranged, the optical axis of the third group of elements and the fourth group of elements forms an angle with the optical axis of the first group of elements, and the position of the second group of elements relative to the imaging surface of the optical lens is fixed; the first group of elements, the third group of elements and the fourth group of elements can move towards the object side relative to the second group of elements, the distance between the third group of elements and the fourth group of elements first increases and then decreases, the total length of the optical lens increases, and the optical lens is zoomed from a wide-angle state to a long-focus state; the first group of elements can move towards the image side relative to the second group of elements, the third group of elements and the fourth group of elements can move towards the object side relative to the second group of elements, the distance between the third group of elements and the fourth group of elements decreases, the total length of the optical lens decreases, and the optical lens is zoomed from a wide-angle state to a micro-focus state. The first group of elements has positive focal power, the second group of elements has negative focal power, the third group of elements has positive focal power, and the fourth group of elements has positive focal power; the first group of elements satisfies the following relationship: 1.0 ≦ |fs1 / ft| ≦ 1.7; wherein fs1 is the focal length of the first group of elements, and ft is the focal length of the optical lens in the long-focus state.

2. The optical lens of claim 1, wherein, When the optical lens is in the long-focus state, the optical lens satisfies the following relationship: 1.0 ≤ TTL / EFLmax ≤ 1.7; wherein TTL is the total length of the optical lens, and EFLmax is the effective focal length of the optical lens in the long-focus state.

3. The optical lens of claim 2, wherein, The optical lens satisfies the following relationship: 0.01 ≤ IH / EFLmax ≤ 0.1; wherein IH is the image height of the optical lens.

4. The optical lens of any of claims 1 to 3, wherein, The second group of elements satisfies the following relationship: 0.1 ≦ |fs2 / ft| ≦ 0.7; wherein fs2 is the focal length of the second group of elements, and ft is the focal length of the optical lens in the long-focus state.

5. The optical lens of any of claims 1 to 3, wherein, The third group of elements satisfies the following relationship: 0.1 ≦ |fs3 / ft| ≦ 0.7; wherein fs3 is the focal length of the third group of elements, and ft is the focal length of the optical lens in the long-focus state.

6. The optical lens of any one of claims 1 to 3, wherein, The fourth group of elements satisfies the following relationship: 0.3 ≦ |fs4 / ft| ≦ 0.9; wherein fs4 is the focal length of the fourth group of elements, and ft is the focal length of the optical lens in the long-focus state.

7. The optical lens of any one of claims 1 to 3, wherein, The optical lens satisfies the following relationship: 4 mm ≤ φmax ≤ 15 mm; wherein φmax is the diameter of the largest lens in the first group of elements, the second group of elements, the third group of elements and the fourth group of elements.

8. The optical lens of claim 7, wherein, The first group, the second group, the third group, and the fourth group have a total of N lenses with optical power, where N is an integer greater than or equal to 7 and less than or equal to 15, and at least 7 of the N lenses with optical power are aspherical lenses.

9. The optical lens of claim 1, wherein, The difference between the principal ray angle of the optical lens in wide-angle mode and the principal ray angle in telephoto mode is less than or equal to 3 degrees.

10. The optical lens of claim 1 or 9, wherein, The difference between the principal ray angle of the optical lens in telephoto mode and the principal ray angle in macro mode is less than or equal to 5 degrees.

11. The optical lens of claim 1, wherein, The fourth component includes laminated lenses.

12. The optical lens of claim 1, wherein, The optical lens includes an aperture stop located on the object side of the third element.

13. A lens module, characterized by, The device includes a photosensitive element, a driving element, and an optical lens as described in any one of claims 1 to 12, wherein the photosensitive element is located on the image side of the optical lens and on the imaging plane of the optical lens, and the driving element is used to drive the first element, the third element, and the fourth element to move relative to the second element.

14. A terminal, characterized by The system includes an image processor and a lens module as described in claim 13, wherein the image processor is communicatively connected to the lens module, the lens module is used to acquire image data and input the image data into the image processor, and the image processor is used to process the image data output therefrom.

15. The terminal according to claim 14, characterized by The terminal also includes a housing, in which the lens module and the image processor are housed. The housing has a light-transmitting hole, and the first component of the lens module faces the light-transmitting hole. When the driving member drives the first component away from the second component, the first component can extend out of the housing through the light-transmitting hole.

Images