Camera module and electronic equipment

Abstract

The utility model relates to the technical field of camera shooting, in particular to a camera module and electronic equipment. According to the camera module and the electronic equipment disclosed by the invention, the mounting part is provided with the first light through hole, the lens is arranged in the first light through hole, the lens is provided with the light filtering film layer, and the light filtering film layer is configured to filter invisible light; the driving assembly comprises a moving part and a fixed part, the moving part bears the mounting part to drive the mounting part and the lens to move in the optical axis direction, the fixed part is located on the periphery of the moving part, and in the first direction, a gap is formed between the fixed part and the moving part; the photosensitive assembly is located on the image side of the lens assembly in the optical axis direction and located on the side, away from the lens assembly, of the driving assembly. According to the camera module, invisible light can be filtered without additionally arranging an optical filter, and due to the fact that the space exists between the movable part and the fixed part, foreign matter can be prevented from entering the photosensitive assembly by arranging the dustproof film in the space between the fixed part and the movable part.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of camera, in particular to a camera module and electronic equipment. BACKGROUND

[0002] With the development of science and technology, the functions of electronic equipment (such as mobile phones) are increasingly rich, and the design and optimization of the camera module, as one of the core components, are particularly important. However, the traditional camera module has a complex structure, which is stacked by multiple elements such as multiple lenses, filters, image sensor modules, and circuit boards. This stacking method not only significantly increases the overall thickness of the camera module, but also makes the overall volume of the camera module larger, which is not conducive to the miniaturization design of electronic equipment. CONTENT OF THE UTILITY MODEL

[0003] The present application discloses a camera module and electronic equipment, which can improve the imaging quality of the camera module and reduce the overall volume of the camera module.

[0004] In order to achieve the above purpose, in a first aspect, the present application discloses a camera module, comprising:

[0005] A lens assembly, the lens assembly comprising a mounting component and at least one lens, the mounting component having a first light passing hole, the lens being arranged in the first light passing hole, and a filter film layer being arranged on the lens, the filter film layer being configured to filter invisible light;

[0006] A driving assembly, the driving assembly comprising a moving part and a fixed part, the moving part carrying the mounting component to drive the mounting component and the lens to move along the optical axis direction, the fixed part being located at the outer periphery of the moving part and along a first direction, and the fixed part and the moving part having a spacing therebetween;

[0007] A light sensing assembly, the light sensing assembly being located on the image side of the lens assembly along the optical axis direction, and the light sensing assembly being located on the side of the driving assembly away from the lens assembly; and

[0008] A dustproof film, the dustproof film being connected to the moving part and the fixed part and located in the spacing, the dustproof film being configured to block foreign matter from entering the light sensing assembly;

[0009] Wherein, the first direction intersects the optical axis direction.

[0010] In some possible implementations, the fixing member has an internal space, the moving member and the lens assembly are at least partially located in the internal space, the fixing member is provided with a second light passing hole which is open along the optical axis direction and which is in communication with the internal space, and the photosensitive assembly is arranged corresponding to the second light passing hole, and the dustproof film is arranged adjacent to the second light passing hole along the optical axis direction.

[0011] In some possible implementations, the second light passing hole penetrates through the internal space along the optical axis direction, and the first light passing hole is arranged corresponding to the second light passing hole.

[0012] The photosensitive assembly comprises a photosensitive element and a circuit board, the circuit board is arranged on a side of the fixing member which is away from the lens assembly and covers the second light passing hole, the photosensitive element is located in the internal space, and the photosensitive element is arranged on a side of the circuit board which is close to the lens assembly, and the photosensitive element is electrically connected with the circuit board.

[0013] In some possible implementations, the driving assembly comprises an elastic connecting member, two ends of the elastic connecting member are connected with the moving member and the fixing member respectively, and the elastic connecting member is located in the interval, and the dustproof film is located on a side of the elastic connecting member which is close to the photosensitive assembly along the optical axis direction.

[0014] In some possible implementations, the dustproof film has opposite first and second ends, the first end is connected to an end of the moving member which is close to the photosensitive assembly, and the second end is connected to an end of the fixing member which is close to the photosensitive assembly.

[0015] The dustproof film has a buffer section which is located between the first and second ends and is configured to provide a margin for the moving member to move relative to the fixing member along the optical axis direction.

[0016] In some possible implementations, the buffer section comprises one or more combinations of an arc-shaped section and a sawtooth section.

[0017] In some possible implementations, the dustproof film has flexibility, and a material of the dustproof film comprises any one of silica gel, rubber, plastic, fiber or graphene; and / or,

[0018] The dustproof film has a thickness of 0.5 um to 25 um.

[0019] In some possible implementations, the lens assembly comprises a plurality of lenses, the plurality of lenses are sequentially arranged from an object side to an image side along the optical axis direction, the light filtering film layer is arranged on a lens which is closest to the object side of the lens assembly, and the light filtering film layer is arranged on an object side surface of the lens.

[0020] In some possible implementation manners, the light filtering film layer is configured to filter ultraviolet light and / or infrared light; and / or,

[0021] The light filtering film layer comprises a protective film layer arranged on a side surface of the light filtering film layer away from the lens.

[0022] In a second aspect, the present application further includes an electronic device comprising a housing and the camera module as described in the first aspect above, wherein the camera module is at least partially arranged in the housing.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] The camera module and the electronic device disclosed in the present application comprise a lens assembly, a driving assembly, a photosensitive assembly, and a dustproof film. The lens assembly comprises a mounting component and at least one lens. The mounting component has a first light passing hole, and the lens is arranged in the first light passing hole. A light filtering film layer is arranged on the lens. The light filtering film layer is configured to filter invisible light. The driving assembly comprises a moving part and a fixed part. The moving part carries the mounting component to drive the mounting component and the lens to move along the optical axis direction. The fixed part is located at the outer periphery of the moving part and has a spacing with the moving part along the first direction. The photosensitive assembly is located on the image side of the lens assembly along the optical axis direction, and the photosensitive assembly is located on the side of the driving assembly away from the lens assembly. The camera module of the present application does not need to additionally set a filter to filter invisible light. Since there is a spacing between the moving part and the fixed part, the dustproof film arranged between the fixed part and the moving part can block foreign matter from entering the photosensitive assembly. Therefore, the present application can thin the thickness of the camera module while preventing foreign matter from entering the photosensitive assembly through the spacing in the driving assembly, thereby improving the imaging quality of the camera module and reducing the overall volume of the camera module. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 FIG. 1 is a structural schematic diagram of a camera module in the related art;

[0027] Figure 2 FIG. 2 is a structural schematic diagram of a camera module provided in an embodiment of the present application;

[0028] Figure 3 FIG. 3 is a sectional view of a lens provided in an embodiment of the present application;

[0029] Figure 4 For Figure 2 A local enlarged view at the middle of the camera module;

[0030] Figure 5 Another structural schematic view of the camera module provided by the embodiment of the present application;

[0031] Figure 6 Another structural schematic view of the camera module provided by the embodiment of the present application;

[0032] Figure 7 A structural schematic view of the electronic device provided by the embodiment of the present application.

[0033] Explanation of reference signs:

[0034] a- filter; b- photosensitive assembly; c- lens assembly; d- driving assembly;

[0035] 100- camera module; 1- lens assembly; 11- mounting part; 111- first light passing hole; 12- lens; 121- filter film layer; 122- protective film layer; 2- driving assembly; 21- moving piece; 22- fixed piece; 221- inner space; 222- second light passing hole; 23- interval; 24- elastic connecting piece; 3- photosensitive assembly; 31- photosensitive element; 32- circuit board; 4- dustproof film; 41- first end; 42- second end; 43- buffer section; 5- connector;

[0036] 200- electronic device; 201- shell;

[0037] F1- first direction; F2- optical axis direction. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] In the present application, the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0040] Moreover, the aforementioned partial terms, in addition to being used to represent the positional or locational relationship, can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0041] In addition, the terms "mount", "set", "provided with", and "connected" should be broadly understood. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0042] In addition, the terms "first", "second", and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0043] With the rapid progress and rapid development of science and technology, modern electronic devices (such as smart phones) have increasingly rich and diverse functions, bringing users an unprecedented convenient experience. As one of the indispensable core components in these electronic devices, the design and optimization of the camera module are particularly important, as they are directly related to the quality of the device's imaging and the satisfaction of the user experience.

[0044] However, as Figure 1 shown, the traditional camera module structure is relatively complex, usually consisting of multiple key elements such as multiple layers of precise lens assemblies c, optical filters a, photosensitive assemblies b, and driving assemblies d, which are stacked one upon another to form a highly integrated optical system. This layer-by-layer stacking construction method, while ensuring that the camera module can have excellent imaging performance to some extent, also brings a series of problems that cannot be ignored. The most intuitive one is that it significantly increases the overall thickness of the camera module, making the electronic device, which originally pursues a thin and light design, have to compromise in the camera area, affecting the overall aesthetics and portability. In addition, the stacking method also makes the overall volume of the camera module larger, which poses a considerable challenge to the current trend of miniaturization and lightweight of electronic devices, and is not conducive to achieving a more compact and small product design.

[0045] Therefore, the application discloses a camera module and an electronic device, which can thin the thickness of the camera module and prevent foreign matter from entering the photosensitive assembly through the gap in the driving assembly, thereby improving the imaging quality of the camera module and reducing the overall volume of the camera module.

[0046] The technical solutions of the application will be further described below with reference to the embodiments and drawings.

[0047] Please refer to Figure 2 , Figure 2 A structural schematic diagram of the camera module provided by the embodiments of the application is shown. The embodiments of the application disclose a camera module 100, which comprises a lens assembly 1, a driving assembly 2, a photosensitive assembly 3 and a dustproof film 4. The lens assembly 1 comprises a mounting part 11 and at least one lens 12. The mounting part 11 has a first light passing hole 111, and the lens 12 is arranged in the first light passing hole 111. An optical filter layer 121 is arranged on the lens 12, and the optical filter layer 121 is configured to filter invisible light.

[0048] The driving assembly 2 comprises a moving part 21 and a fixed part 22. The moving part 21 carries the mounting part 11 to drive the mounting part 11 and the lens 12 to move along the optical axis direction F2. The fixed part 22 is located at the outer periphery of the moving part 21 and along the first direction F1. The fixed part 22 and the moving part 21 have a gap 23 therebetween. The photosensitive assembly 3 is located on the image side of the lens assembly 1 along the optical axis direction F2, and the photosensitive assembly 3 is located on the side of the driving assembly 2 away from the lens assembly 1. The first direction F1 intersects the optical axis direction F2.

[0049] The camera module 100 of the application filters the invisible light by arranging the optical filter layer 121 on the lens 12, so that no additional optical filter is needed. In addition, since the optical filter is cancelled, no additional bracket for placing the optical filter is needed inside the camera module 100. Such a design not only effectively thins the thickness of the camera module 100, but also simplifies the structural design inside the camera module 100, so that the design cost of the camera module 100 is effectively reduced.

[0050] In addition, considering that in the related art, the filter is usually arranged between the lens assembly 1 and the photosensitive assembly 3, the filter can be used to prevent foreign matter from falling onto the photosensitive assembly 3, and based on this, the dustproof problem of the photosensitive assembly 3 is considered on the basis of canceling the filter, and the dustproof film 4 arranged between the fixed part 22 and the moving part 21 can block foreign matter from entering the photosensitive assembly 3. Therefore, the application can realize thinning the thickness of the camera module 100 while preventing foreign matter from entering the photosensitive assembly 3 through the gap 23 in the driving assembly 2, thereby improving the imaging quality of the camera module 100 and reducing the overall volume of the camera module 100, thereby realizing the pursuit of miniaturization and thinness of the electronic device 200 and improving the shooting quality of the electronic device 200.

[0051] It can be understood that the filter film layer 121 is configured to filter invisible light, including but not limited to ultraviolet light, infrared light, and polarized light that cannot be recognized by the naked eye. The presence of invisible light will cause the photosensitive assembly 3 to be unable to accurately restore the color seen by the human eye when imaging, and moreover, invisible light will interfere with the imaging process, affecting the clarity and contrast of the image, thereby affecting the overall quality of the image. Based on this, the filter film layer 121 filters out invisible light, which can effectively reduce the influence of invisible light on imaging quality, thereby effectively improving the clarity and accuracy of the image.

[0052] It can be understood that the above-mentioned foreign matter is an object that will affect the imaging quality of the camera module 100 and cause black shadows when taking pictures. The foreign matter can include but is not limited to external dirt, particles, dust, water droplets, etc., or debris generated by friction and impact during the movement of the moving part 21 driving the lens assembly 1 relative to the fixed part 22, or dust, hair, mold, and other particles suspended in the air.

[0053] Please refer again to Figure 2 In some embodiments, the lens assembly 1 includes a plurality of lenses 12, and the plurality of lenses 12 are arranged in order along the optical axis direction F2 from the object side to the image side. For example, the lens assembly can include three or more lenses.

[0054] The filter film layer 121 is arranged on the lens 12 closest to the object side of the lens assembly 1, and the filter film layer 121 is arranged on the object side surface of the lens 12. It can be understood that the filter film layer 121 can be directly formed on the surface of the lens 12 by a coating process. In the embodiment of the present application, the filter film layer 121 is arranged on the lens 12 closest to the object side of the lens assembly 1, and the filter film layer 121 is also arranged on the object side surface of the lens 12. That is to say, the filter film layer 121 is arranged on the outer side surface of the lens 12 on the outermost side of the camera module 100, which is closest to the object side, and the filter film layer 121 is used to filter invisible light. Therefore, the camera module 100 of the embodiment of the present application can selectively block the incident light on the outermost side of the lens assembly 1, so that the invisible light does not participate in the light path of the incident light from the beginning, thereby improving the imaging effect and imaging quality of the camera module 100.

[0055] Of course, as other embodiments, the filter film layer 121 can be arranged on any one side surface of any one lens 12. In addition, the filter film layer 121 can be multiple, and the arrangement positions of the multiple filter film layers 121 can also be arranged on any one side surface of any one lens 12, or the multiple filter film layers 121 can be stacked, which is not limited in the present application.

[0056] Optionally, the filter film layer 121 is configured to filter ultraviolet light and / or infrared light. Since infrared light and ultraviolet light can make it difficult for the photosensitive component 3 to calculate correct color information, resulting in inaccurate color of displayed image information, filtering ultraviolet light and / or infrared light by the filter film layer 121 helps to reduce the influence of reflected light and stray light, so that the camera module 100 obtains accurate and clear image color.

[0057] Please refer to Figure 3 , Figure 3 The cross-sectional view of the lens provided by the embodiment of the present application. Optionally, the filter film layer 121 includes a protective film layer 122, and the protective film layer 122 is arranged on the side surface of the filter film layer 121 away from the lens 12. That is to say, the filter film layer 121 is arranged between the protective film layer 122 and the lens 12. Since the filter film layer 121 is arranged on the object side surface of the outermost lens 12 of the camera module 100, the filter film layer 121 at this position is most likely to be worn. Therefore, by arranging the protective film layer 122 on the outside of the filter film layer 121, the filter film layer 121 can be effectively protected from wear, thereby improving the imaging quality and use reliability of the camera module 100.

[0058] Optionally, the material of the protective film layer 122 can include, but is not limited to, oxides, fluorides, etc., such as silicon dioxide, aluminum oxide, magnesium fluoride, magnesium fluoride, etc., which are not limited in the present application. Among them, the silicon dioxide as the material of the protective film layer 122 can effectively isolate the light filtering film layer 121 from the external environment, ensure the light filtering effect of the light filtering film layer 121, and also improve the wear resistance and mechanical strength of the surface of the lens 12, thereby improving the imaging quality and use reliability of the camera module 100.

[0059] Please refer again to Figure 2 In some embodiments, the fixing member 22 has an internal space 221, the moving member 21 and the lens assembly 1 are at least partially located in the internal space 221, the fixing member 22 is provided with a second light passing hole 222 which is open along the optical axis direction F2 and communicates with the internal space 221, the photosensitive assembly 3 is arranged corresponding to the second light passing hole 222, and the dustproof film 4 is arranged adjacent to the second light passing hole 222 along the optical axis direction F2. It can be understood that, since the second light passing hole 222 communicates with the internal space 221 and the photosensitive assembly 3 is arranged corresponding to the second light passing hole 222, the dustproof film 4 is arranged close to the second light passing hole 222 along the optical axis direction F2, which can minimize the internal space 221 of the fixing member 22, so that the air content of the internal space 221 is less, thereby further reducing the dust suspended in the air and the possibility of dust falling on the photosensitive assembly 3, and thus improving the imaging quality and imaging effect of the camera module 100.

[0060] Optionally, the second light passing hole 222 penetrates the internal space 221 along the optical axis direction F2, and the first light passing hole 111 and the second light passing hole 222 are arranged corresponding to each other; the photosensitive assembly 3 includes a photosensitive element 31 and a circuit board 32, the circuit board 32 is arranged on the side of the fixing member 22 away from the lens assembly 1 and covers the second light passing hole 222, the photosensitive element 31 is located in the internal space 221, and the photosensitive element 31 is arranged on the side of the circuit board 32 close to the lens assembly 1, and the photosensitive element 31 is electrically connected with the circuit board 32.

[0061] Along the optical axis direction F2, the lens assembly 1, the driving assembly 2, the photosensitive element 31 and the circuit board 32 are arranged in sequence to form the camera module 100 for imaging. The photosensitive element 31 of the camera module 100 is located in the internal space 221 of the fixing member 22 and is arranged corresponding to the lens assembly 1 to perform photoelectric conversion on the received incident light and send the color image to the display for display through the circuit board 32, thereby realizing the shooting and imaging functions of the camera module 100. Among them, the circuit board 32 and the fixing member 22 can be bonded by glue. The circuit board 32 is provided with a connector 5, the connector 5 is electrically connected with the circuit board 32, and the connector 5 is used for connecting the camera module 100 with external devices.

[0062] Please refer to Figure 2 and Figure 4 , Figure 4 for Figure 2 a local enlarged view of A in FIG. 1. In some embodiments, the driving assembly 2 includes an elastic connecting member 24, two ends of the elastic connecting member 24 are connected to the moving member 21 and the fixed member 22 respectively, and the elastic connecting member 24 is located in the interval 23, the elastic connecting member 24 is used to provide a rebound force for the lens assembly 1 when the lens assembly 1 moves relative to the fixed member 22. In the direction of the optical axis F2, the dustproof film 4 is located on the side of the elastic connecting member 24 close to the photosensitive assembly 3, that is, the dustproof film 4 is arranged closer to the photosensitive assembly 3 than the elastic connecting member 24. Because the elastic connecting member 24 is located in the interval 23, and the elastic connecting member 24 needs a certain displacement amount, there is an interval 23 between the fixed member 22 and the moving member 21, and this interval 23 cannot be sealed by the elastic connecting member 24. By arranging the dustproof film 4 on the side of the elastic connecting member 24 close to the photosensitive assembly 3, the dustproof film 4 can effectively block foreign matter from entering the internal space 221 of the fixed member 22 through the interval 23, thereby improving the imaging quality and imaging effect of the camera module 100. In addition, by arranging the dustproof film 4 on the side of the elastic connecting member 24 close to the photosensitive assembly 3, because the photosensitive assembly 3 is arranged in the internal space 221 of the fixed member 22, the dustproof film 4 can be closer to the photosensitive assembly 3 and the internal space 221 is smaller, thereby effectively reducing the problem of foreign matter falling onto the photosensitive assembly 3, thereby improving the imaging quality and imaging effect of the camera module 100.

[0063] It can be understood that the elastic connecting member 24 includes but is not limited to a spring, a reed, etc., which can provide a reverse pulling force for the lens assembly 1 to drive the lens assembly 1 to quickly return to the initial position. It can be understood that the initial position refers to the preset position of the lens assembly 1 when it is not focusing or focusing.

[0064] Please refer to Figure 4In some embodiments, the dustproof film 4 has a first end 41 and a second end 42, the first end 41 is connected to the mobile part 21 near one end of the photosensitive assembly 3, and the second end 42 is connected to the fixed part 22 near one end of the photosensitive assembly 3. Since the above-mentioned spacing 23 is formed by the fixed part 22 and the mobile part 21, the first end 41 of the dustproof film 4 and the second end 42 of the dustproof film 4 are respectively connected to the mobile part 21 and the fixed part 22, and the first end 41 of the dustproof film 4 and the second end 42 of the dustproof film 4 are both arranged near the photosensitive assembly 3, which can effectively block foreign matter from entering the internal space 221 and prevent foreign matter from falling onto the photosensitive assembly 3, thereby improving the imaging quality and imaging effect. In addition, the dustproof film 4 has a buffer section 43 between the first end 41 and the second end 42, and the buffer section 43 is configured to provide a margin for the movement of the mobile part 21 relative to the fixed part 22 along the optical axis direction F2. Since the mobile part 21 needs to drive the lens assembly 1 to move relative to the fixed part 22 along the optical axis direction F2, the dustproof film 4 connected between the mobile part 21 and the fixed part 22 will also be pulled by the displacement of the mobile part 21. Therefore, the buffer section 43 on the dustproof film 4 can provide a certain margin for the movement of the mobile part 21 relative to the fixed part 22 along the optical axis direction F2, and the dustproof film 4 with the buffer section 43 will not limit the movement stroke of the lens assembly 1, which can avoid the tearing and breaking of the dustproof film 4 caused by pulling, thereby improving the imaging quality and use reliability of the camera module 100.

[0065] Please refer to Figure 2 , Figure 5 and Figure 6 , Figure 5 Another structural schematic diagram of the camera module provided by the embodiments of the present application is shown in Figure 6 Another structural schematic diagram of the camera module provided by the embodiments of the present application is shown in. Optionally, the buffer section 43 includes one or more combinations of an arc-shaped section and a sawtooth section, so that the dustproof film 4 can provide a certain redundancy for the movement of the lens assembly 1 and will not hinder the movement of the lens assembly 1 along the optical axis direction F2, thereby effectively improving the imaging effect and imaging quality of the camera module 100.

[0066] As shown in Figure 2 , Figure 4 when the buffer section 43 includes an arc-shaped section, the radial cross-sectional shape of the buffer section 43 can include but is not limited to a concave shape, a convex shape, or a combination of a concave shape and a convex shape. As shown in Figure 5 when the buffer section 43 includes a sawtooth section, the radial cross-sectional shape of the buffer section 43 can be a corrugated shape. Of course, as other examples, the buffer section 43 can also be a combination of an arc-shaped section and a sawtooth section, which is not limited in the present application as long as the purpose of the present application can be achieved.

[0067] Optionally, the dustproof film 4 has flexibility, and the material of the dustproof film 4 includes any one of silica gel, rubber, plastic, fiber or graphene. Since the dustproof film 4 has flexibility, that is, the dustproof film 4 can be deformed, when the dustproof film 4 is connected between the moving part 21 and the fixed part 22, and the moving part 21 drives the lens assembly 1 to move relative to the fixed part 22 to cause the dustproof film 4 to be pulled, the dustproof film 4 can be deformed to offset the pulling force of the dustproof film 4, so that the movement of the lens assembly 1 is not hindered, thereby effectively improving the imaging effect and imaging quality of the camera module 100.

[0068] The graphene material of the dustproof film 4 has good heat conduction performance and ductility, which can effectively resist the pulling force of the lens assembly 1 on the dustproof film 4, that is, even if the lens assembly 1 moves back and forth along the optical axis direction F2, the dustproof film 4 can still maintain the sealing and dustproof effect, thereby improving the imaging effect and imaging quality of the camera module 100, and further improving the use reliability of the electronic device 200.

[0069] Optionally, the thickness of the dustproof film 4 is 0.5um-25um. For example, the thickness of the dustproof film 4 can include but is not limited to 0.5um-4.0um, 4.0um-7.5um, 7.5um-11.0um, 11.0um-14.5um, 14.5um-18.0um, 21.5um-25.0um, etc. For example, the thickness of the dustproof film 4 can include but is not limited to 0.5um, 1.0um, 1.5um, 2.0um, 2.5um, 3.0um, 3.5um, 4.0um, 4.5um, 5.0um, 5.5um, 6.0um, 6.5um, 7.0um, 7.5um, 8.0um, 8.5um, 9.0um, 9.5um, 10.0um, 10.5um, 11.0um, 11.5um, 12.0um, 12.5um, 13.0um, 13.5um, 14.0um, 14.5um, 15.0um, 15.5um, 16.0um, 16.5um, 17.0um, 17.5um, 18.0um, 18.5um, 19.0um, 19.5um, 20.0um, 20.5um, 21.0um, 21.5um, 22.0um, 22.5um, 23.0um, 23.5um, 24.0um, 24.5um, 25um, etc. The present application does not make specific limitations on this.

[0070] In this way, the dustproof film 4 has a certain mechanical strength and is not easy to be damaged or broken when it is pulled by the moving part 21. In addition, the thickness of the dustproof film 4 is within a certain reasonable range, which can make the movement of the lens assembly 1 smooth and reduce the weight and space occupied by the camera module 100.

[0071] When the thickness of the dustproof film 4 is less than 0.5 um, the mechanical strength of the dustproof film 4 is too small, and the dustproof film 4 is easily deformed or broken when the lens assembly 1 is moved relative to the fixed part 22 by the moving part 21, so that the camera module 100 is damaged and the imaging quality of the camera module 100 is affected; when the thickness of the dustproof film 4 is greater than 25 um, the dustproof film 4 with too large thickness will increase its own weight, so that the movement of the lens assembly 1 during focusing or focusing is blocked, and the shooting quality of the camera module 100 is affected. In addition, the volume of the dustproof film 4 also increases, which increases the occupancy rate of the internal space 221 of the fixed part 22, thereby being not conducive to the miniaturization and thinning of the camera module 100.

[0072] Please refer to Figure 7 , Figure 7 The structure schematic diagram of the electronic device provided by the embodiment of the present application is shown. In a second aspect, the embodiment of the present application also discloses an electronic device 200, which comprises a shell 201 and a camera module 100 as described in the first aspect above, and the camera module 100 is at least partially arranged in the shell 201. The electronic device 200 with the camera module 100 can also achieve the above-mentioned first aspect, which can reduce the thickness of the camera module 100 and prevent foreign matter from entering the photosensitive assembly 3 through the gap 23 in the driving assembly 2, thereby improving the imaging quality of the camera module 100 and reducing the overall volume of the camera module 100, and further realizing the miniaturization and thinning of the electronic device 200 and improving the shooting quality of the electronic device 200.

[0073] Specifically, the electronic device 200 can include but is not limited to a smart phone, a smart watch, a camera, a monitor, a sports camera, a notebook computer, a driving recorder, a tablet computer, a palm computer, a game device, a drone and other electronic devices 200, and the embodiment of the present application does not make specific limitation.

[0074] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A camera module (100), characterized in that, The application relates to a lens assembly, which comprises a lens component (1) and a driving component (2). The lens component (1) comprises a mounting part (11) and at least one lens (12), the mounting part (11) has a first light passing hole (111), and the lens (12) is arranged in the first light passing hole (111), and a light filtering film layer (121) is arranged on the lens (12), and the light filtering film layer (121) is configured to filter invisible light. The driving component (2) comprises a moving part (21) and a fixed part (22), the moving part (21) carries the mounting part (11) to drive the mounting part (11) and the lens (12) to move along an optical axis direction (F2), the fixed part (22) is located at the periphery of the moving part (21) and along a first direction (F1), and a space (23) is formed between the fixed part (22) and the moving part (21). A light sensing component (3) is located on the image side of the lens component (1) along the optical axis direction (F2), and the light sensing component (3) is located on the side of the driving component (2) away from the lens component (1). A dustproof film (4) is connected to the moving part (21) and the fixed part (22) and located in the space (23), and the dustproof film (4) is configured to prevent foreign matters from entering the light sensing component (3). The first direction (F1) intersects the optical axis direction (F2).

2. The camera module (100) according to claim 1, characterized in that, The fixed part (22) has an internal space (221), the moving part (21) and the lens component (1) are at least partially located in the internal space (221), the fixed part (22) is provided with a second light passing hole (222) which is open along the optical axis direction (F2) and communicates with the internal space (221), and the light sensing component (3) is arranged corresponding to the second light passing hole (222) along the optical axis direction (F2), and the dustproof film (4) is arranged adjacent to the second light passing hole (222).

3. The camera module (100) according to claim 2, characterized in that, The second light passing hole (222) penetrates the internal space (221) along the optical axis direction (F2), and the first light passing hole (111) is arranged corresponding to the second light passing hole (222). The light sensing component (3) comprises a light sensing element (31) and a circuit board (32), the circuit board (32) is arranged on the side of the fixed part (22) away from the lens component (1) and covers the second light passing hole (222), the light sensing element (31) is located in the internal space (221), and the light sensing element (31) is arranged on the side of the circuit board (32) close to the lens component (1), and the light sensing element (31) is electrically connected to the circuit board (32).

4. The camera module (100) according to claim 1, characterized in that, The driving assembly (2) comprises an elastic connecting piece (24), two ends of the elastic connecting piece (24) are connected with the moving piece (21) and the fixed piece (22) respectively, and the elastic connecting piece (24) is located in the interval (23) along the optical axis direction (F2), and the dustproof film (4) is located on the side of the elastic connecting piece (24) close to the photosensitive assembly (3).

5. The camera module (100) according to claim 1, characterized in that, The dustproof film (4) has opposite first and second ends (41) and (42), the first end (41) is connected to one end of the moving piece (21) close to the photosensitive assembly (3), and the second end (42) is connected to one end of the fixed piece (22) close to the photosensitive assembly (3). The dustproof film (4) has a buffer section (43) located between the first and second ends (41) and (42), and the buffer section (43) is configured to provide a margin for the moving piece (21) to move relative to the fixed piece (22) along the optical axis direction (F2).

6. The camera module (100) according to claim 5, characterized in that, The buffer section (43) comprises one or more combinations of an arc-shaped section, a sawtooth section, etc.

7. The camera module (100) according to claim 6, characterized in that, The dustproof film (4) has flexibility, and the material of the dustproof film (4) comprises any one of silica gel, rubber, plastic, fiber or graphene; and / or, The thickness of the dustproof film (4) is 0.5-25um.

8. The camera module (100) according to any one of claims 1-7, characterized in that, The lens assembly (1) comprises a plurality of lenses (12), and the plurality of lenses (12) are sequentially arranged from the object side to the image side along the optical axis direction (F2), the filter film layer (121) is arranged on the lens (12) closest to the object side of the lens assembly (1), and the filter film layer (121) is arranged on the object side surface of the lens (12).

9. The camera module (100) according to claim 8, characterized in that, The filter film layer (121) is configured to filter ultraviolet light and / or infrared light; and / or, The filter film layer (121) comprises a protective film layer (122) arranged on the side surface of the filter film layer (121) away from the lens (12).

10. An electronic device (200), characterized by The electronic device (200) comprises a housing (201) and a camera module (100) as claimed in any one of claims 1-9, and the camera module (100) is at least partially arranged in the housing (201).

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