Camera module and electronic device

Abstract

Embodiments of the present application provide a camera module and an electronic device. The camera module comprises a lens assembly and a variable aperture. The variable aperture comprises a base, a fixed support, a rotating support, a blade assembly and a driving assembly. The base has a first light transmission hole. The base and the lens barrel of the lens assembly are in an integrated structure. The fixed support is fixedly connected with the base and encloses an active accommodation cavity. The rotating support is movably arranged in the active accommodation cavity. The rotating support has a second light transmission hole in communication with the first light transmission hole and is rotatably connected with the base and / or the fixed support. The blade assembly comprises a plurality of aperture blades. The aperture blades are movably arranged in the fixed support and connected with the rotating support. The aperture blades are arranged in sequence along the circumferential direction of the rotating support and form an aperture hole with adjustable aperture size. The driving assembly is connected with the rotating support and is used to drive the rotating support to rotate. The camera module provided by the present application can enhance the optical performance of the lens assembly and improve the imaging quality.

Description

[0001] This application claims priority to Chinese patent application filed on August 27, 2025, with application number 202521837929X and entitled "Camera Module and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of photography, and more particularly to a camera module and electronic device. Background Technology

[0003] The camera module uses a variable aperture to adjust the aperture size, adapting to changes in ambient light and optimizing image quality. Existing variable apertures require bonding to the lens barrel of the lens assembly. After bonding, the adhesive shrinks during curing or temperature changes; this process is known as adhesive shrinkage. Adhesive shrinkage can negatively impact the optical performance of the lens assembly. Utility Model Content

[0004] This application provides a camera module and electronic device that can enhance the optical performance of a lens assembly.

[0005] In a first aspect, this application provides a camera module, including a lens assembly and a variable aperture disposed on the object side of the lens assembly. The lens assembly includes a lens barrel and optical lenses within the lens barrel. The variable aperture includes a base, a fixed bracket, a rotating bracket, a blade assembly, and a drive assembly. The base has a first light-transmitting hole, and the base and lens barrel are integrally formed. The fixed bracket is fixedly connected to the base, and the fixed bracket and the base together enclose a movable receiving cavity. The rotating bracket is movably disposed in the movable receiving cavity, and the rotating bracket has a second light-transmitting hole communicating with the first light-transmitting hole. The rotating bracket is rotatably connected to the base and / or the fixed bracket. The blade assembly includes multiple aperture blades, which are movably disposed on the fixed bracket and connected to the rotating bracket. These aperture blades are arranged in a ring along the circumferential direction of the rotating bracket, forming an aperture hole with an adjustable aperture size, which communicates with the second light-transmitting hole. The drive assembly is connected to the rotating bracket and is used to drive the rotating bracket to rotate relative to the base and drive all the aperture blades to rotate relative to the base, thereby adjusting the size of the aperture hole. Optical lenses are used to receive light that passes through the aperture.

[0006] In this embodiment, the base and lens barrel are an integral structure, eliminating the need for bonding and thus avoiding the impact of adhesive shrinkage on the optical performance of the lens assembly. Furthermore, in the camera module, the distance from the aperture blades to the first optical lens element near the object side of the lens assembly is fixed. Therefore, the height of the variable aperture relative to the overall height of the lens assembly is fixed. When the base and lens barrel are integrated, they are connected as one unit, eliminating the need for a separate base bottom wall and an adhesive layer between the base and lens barrel. This saves space for a larger drive assembly, enhancing its thrust and preventing rotational jamming caused by insufficient thrust on the rotating bracket.

[0007] In one implementation of the first aspect, the lens barrel includes a first lens barrel and a second lens barrel, and the optical lens includes a first optical lens and a second optical lens. The first optical lens is located inside the first lens barrel, and the second optical lens is located inside the second lens barrel. The first lens barrel and the base are an integral structure, and the second optical lens is used to receive light transmitted through the aperture and the first optical lens.

[0008] In this implementation, the lens assembly includes a first lens barrel and a first optical lens located within the first lens barrel, as well as a second lens barrel and a second optical lens located within the second lens barrel. The first lens barrel and the first optical lens within it can be collectively referred to as a first lens group, and the second lens barrel and the second optical lens within it can be collectively referred to as a second lens group. The arrangement of the first and second lens groups facilitates their relative movement along the optical axis, which is beneficial for adjusting the focal length of the camera module. The first lens barrel in the first lens group is integrated with the variable aperture base, which avoids the impact of shrinkage on the optical performance of the lens assembly, reduces the number of components in the camera module, and lowers assembly complexity.

[0009] In one implementation of the first aspect, the base includes a first annular portion and a first side portion, the first side portion protruding from the first annular portion and surrounding the outer periphery of the first annular portion. The fixing bracket includes a second annular portion and a second side portion, the second side portion protruding from the second annular portion and surrounding the outer periphery of the second annular portion. The first side portion and the second side portion are fixedly connected, and the first annular portion and the second annular portion are disposed opposite to each other.

[0010] In this implementation, the first side protrudes from the outer edge of the base, making the mating position of the fixing bracket and the base far away from all optical lenses. Even if the fixing bracket is fixed at the mating point by adhesive bonding, it will not affect the optical performance of the optical lenses.

[0011] In one implementation of the first aspect, the outer side of the first side portion is recessed or protruded along the height direction of the first side portion to form a first step; the outer side of the second side portion is protruded or recessed along the height direction of the second side portion to form a second step, and the second step is engaged with the first step.

[0012] In this implementation, the snap-fit ​​arrangement of the second step on the second side and the first step on the first side can realize the assembly guidance and limitation of the fixed bracket, and enhance the assembly reliability of the fixed bracket and the base.

[0013] In one implementation of the first aspect, the driving component includes a magnet and a coil, one of which is fixed to the outside of the rotating bracket, and the other of which is fixed to the base and / or the fixed bracket. The magnet and the coil are arranged in sequence along the radial direction of the rotating bracket, and the coil is used to drive the rotating bracket to rotate together with the magnet.

[0014] In this implementation, the magnets and coils are arranged sequentially along the radial direction of the rotating bracket, which makes full use of the space between the rotating bracket and the base. This allows the magnets and coils to be designed to be larger, which is beneficial for strengthening the thrust and avoiding the problem of the rotating bracket getting stuck due to insufficient thrust.

[0015] In this implementation, the magnet can be fixed to the rotating bracket, and the coil can be fixed to the base and / or the fixed bracket. With the coil in a fixed position, the magnet and the rotating bracket rotate together; this driving method can be called moving magnet (MM) drive. Moving magnet drive allows for a higher magnetic field strength, generating a stronger thrust, which is beneficial for the rotation of the rotating bracket. Furthermore, the coil, which requires power, does not need to be mounted on the rotating bracket; it can be directly electrically connected to the circuit board, thus simplifying the electrical connection structure of the variable aperture.

[0016] In this implementation, the coil can be fixed to a rotating bracket, and the magnet can be fixed to a base and / or a fixed bracket. With the magnet in a fixed position, the coil and the rotating bracket rotate together; this driving method can be called a moving coil (MC) drive. Because the coil is lightweight, the rotating bracket has a faster rotational response speed and lower inertia, allowing for more precise control of the aperture.

[0017] In one implementation of the first aspect, a first side portion is provided with a first notch extending through the first side portion along its thickness direction, the first notch extending through the side of the first side portion away from the first annular portion; a second side portion is provided with a second notch extending through the second side portion along its thickness direction, the second notch extending through the side of the second side portion away from the second annular portion; the first notch and the second notch communicate to form an installation space for placing one of a magnet and a coil; and / or, the outer wall of the rotating bracket is provided with a first groove for placing the other of a magnet and a coil.

[0018] In this implementation, one of the magnet and the coil is located in the installation space formed by the first notch and the second notch, while the other of the magnet and the coil is located in the first groove. This can further improve the space utilization rate and is conducive to designing the magnet and the coil to be larger within a limited space, thereby strengthening the thrust.

[0019] In one implementation of the first aspect, the driving component includes a magnet and a coil, one of which is fixed to a rotating bracket, and the other is fixed to a base. The magnet and the coil are arranged sequentially along the axial direction of the rotating bracket, and the coil is used to drive the rotating bracket to rotate together with the magnet.

[0020] In this implementation, the magnets and coils are arranged sequentially along the axial direction of the rotating bracket. This arrangement helps to save the dimensions of the base in the height direction and is beneficial for adapting to the structure of the first lens barrel with fewer or thinner first optical lenses.

[0021] In one implementation of the first aspect, the base includes a first annular portion and a first side portion, the first side portion protruding from the first annular portion and surrounding the outer periphery of the first annular portion; the rotating bracket is provided with a second groove facing the bottom wall of the first annular portion, and a magnet or coil is fixed in the second groove.

[0022] In this implementation, the magnet or coil is fixed in the second groove of the rotating bracket, which helps to save space and improve the stability of the connection between the magnet or coil and the rotating bracket.

[0023] In one implementation of the first aspect, a first cutting plane is provided on the outer edge of the second lens barrel, and a second cutting plane is provided on the outer edge of each second optical lens, with the position of the second cutting plane corresponding to the position of the first cutting plane.

[0024] In this implementation, the first cutting plane can be obtained by cutting the second lens barrel from its outer edge inwards, and the outer peripheral surface of the second lens barrel, excluding the first cutting plane, can be a curved surface; the second cutting plane can be obtained by cutting the outer edge of the second optical lens, and the outer peripheral surface of the second optical lens, excluding the second cutting plane, can be a curved surface. This processing technology can be called edge trimming. By trimming the second lens barrel and the second optical lens, the volume of the second lens barrel can be reduced, which is beneficial for miniaturizing camera modules and electronic devices.

[0025] Secondly, embodiments of this application provide an electronic device, including a main body and any of the aforementioned camera modules, with the camera module disposed on the main body. In these embodiments, configuring any of the aforementioned camera modules improves the shooting performance of the electronic device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an electronic device in one embodiment of this application;

[0027] Figure 2 yes Figure 1 A schematic diagram of the 3D structure of the camera module in the image;

[0028] Figure 3 yes Figure 1 A top view of the camera module in the middle;

[0029] Figure 4 yes Figure 3 A schematic diagram of the AA cross-sectional structure of the camera module in the diagram;

[0030] Figure 5 yes Figure 3 A schematic diagram of the exploded structure of the camera module in the image;

[0031] Figure 6 This is a schematic diagram of the structure of the base and lens assembly in one embodiment;

[0032] Figure 7 yes Figure 6 Enlarged schematic diagram of point B on the first side of the middle section;

[0033] Figure 8 yes Figure 6 Another structural diagram of the base and lens assembly;

[0034] Figure 9 This is a three-dimensional structural diagram of a fixed bracket in one embodiment;

[0035] Figure 10 This is a schematic diagram of the assembly structure of the fixed bracket and the base;

[0036] Figure 11 This is a three-dimensional structural schematic diagram of a guide ring in one embodiment;

[0037] Figure 12 It is the base and Figure 11 A schematic diagram of the assembly structure of the guide ring in the middle;

[0038] Figure 13 This is a three-dimensional structural schematic diagram of the rotating bracket in one embodiment;

[0039] Figure 14 yes Figure 13 A three-dimensional structural diagram of the rotating support from another perspective;

[0040] Figure 15 yes Figure 14 Enlarged schematic diagram of point C on the rotating bracket;

[0041] Figure 16 This is a schematic diagram of the assembly structure of the rotating bracket and the guide ring;

[0042] Figure 17 This is a schematic diagram of the assembly structure of the rotating support and the magnet;

[0043] Figure 18 This is a schematic diagram of the three-dimensional structure of the circuit board;

[0044] Figure 19 This is a schematic diagram of the aperture blade structure in one embodiment;

[0045] Figure 20 This is a schematic diagram showing the connection between the aperture blades and the fixed and rotating supports;

[0046] Figure 21 This is a three-dimensional structural diagram of the camera module in another embodiment;

[0047] Figure 22 yes Figure 21 A top view of the camera module in the middle;

[0048] Figure 23 yes Figure 22 A schematic diagram of the DD cross-sectional structure of the camera module in the middle;

[0049] Figure 24 yes Figure 21 A schematic diagram of the exploded structure of the camera module in the image;

[0050] Figure 25 yes Figure 24 A schematic diagram of the structure of the base, the first lens barrel, and the first optical lens;

[0051] Figure 26 yes Figure 24 A three-dimensional structural diagram of the fixed bracket 118 in the diagram;

[0052] Figure 27 yes Figure 24 A schematic diagram of the assembly structure of the fixed bracket and the base;

[0053] Figure 28 yes Figure 24 A three-dimensional structural diagram of the rotating support in the diagram;

[0054] Figure 29 yes Figure 28 A three-dimensional structural diagram of the rotating support from another perspective;

[0055] Figure 30 This is a schematic diagram of the assembly structure of the rotating support and the magnet;

[0056] Figure 31 It is a schematic diagram of the assembly structure of the base, circuit board and coil, etc.

[0057] Figure 32 This is a three-dimensional structural diagram of the camera module in another embodiment.

[0058] Explanation of reference numerals in the attached figures:

[0059] 1-Electronic devices;

[0060] 10-Camera module;

[0061] 11-Variable aperture; 12-Lens assembly;

[0062] 11d - Movable receiving cavity; 11e - Ball bearing;

[0063] 111-Cover plate; 112-Blade assembly; 113-Rotating bracket; 114-Drive assembly; 115-Position sensor; 116-Circuit board; 117-Guide ring; 118-Fixed bracket; 119-Base; 121-Lens barrel; 122-Optical lens;

[0064] 112a-Pushpad; 112b-Aperture blade; 112c-Pushpad; 113a-Second light-transmitting hole; 113b-First groove; 113c-Supporting part; 113d-Second limiting post; 113e-Boss; 113f-Side side; 113h-Lower surface; 113i-Second groove; 114a-Magnet; 114b-Coil; 116a-Reinforcing plate; 116b-Pin; 116c-Circuit board body; 118a-Second side; 118b-Second annular part; 119a-First side; 119b-Positioning groove; 119c-Magnetic suction piece; 119d-First light-transmitting hole; 119e-First annular part; 119f-Ball groove; 121a-First lens barrel; 121b-Second lens barrel; 122a-First optical lens; 122b-Second optical lens;

[0065] 1121b - Aperture hole; 1122b - Sliding guide groove; 1123b - Rotary connecting hole; 1181a - Second step; 1182a - Second notch; 1181b - First limiting post; 1182b - Third limiting post; 1191a - First step; 1192a - First notch; 1211b - First cutting plane;

[0066] 20 - Shell;

[0067] 201 - First shell; 202 - Second shell;

[0068] O-optical axis. Detailed Implementation

[0069] This application provides an electronic device, including but not limited to mobile phones, tablets, laptops, in-vehicle devices, wearable devices, augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses, VR helmets, laptop computers, personal digital assistants (PDAs), or cameras and other devices with camera functions.

[0070] Figure 1 This is a schematic diagram of the structure of an electronic device 1 in one embodiment. For example... Figure 1 As shown, electronic device 1 can be, for example, a mobile phone. Electronic device 1 may include a camera module 10, a housing 20, and a display screen (not shown). It is understood that the accompanying drawings in this embodiment only schematically show some components of electronic device 1, and the actual structure, size, position, and quantity of these components are not limited by the figures shown. In this embodiment, the part of electronic device 1 other than the camera module 10 can be referred to as the main body. It is readily understood that the main body includes the housing 20 and the display screen, etc., and the camera module 10 is installed in the main body.

[0071] like Figure 1 As shown, for example, the housing 20 may include a first housing 201 and a second housing 202. The first housing 201 may be, for example, a rear housing (hereinafter referred to as rear housing 201), and the second housing 202 may be, for example, a mid-frame (hereinafter referred to as mid-frame 202). The rear housing 201 and the display screen may be respectively connected to the two sides of the mid-frame 202. The rear housing 201 and the mid-frame 202 may enclose the internal space of the electronic device 1. Various devices, such as batteries, receivers, microphones, etc., may be arranged inside the electronic device 1.

[0072] Figure 1 The image shows one camera module 10 of the electronic device 1. This is merely an illustrative example and is not intended to limit the number of camera modules 10. The electronic device 1 may also have multiple camera modules 10 as needed.

[0073] In this embodiment, the camera module 10 can be a rear camera module that collects light from one side of the rear cover 201. Alternatively, the camera module 10 can be a front camera module that collects light from one side of the display screen.

[0074] In this embodiment, the optical axis direction of the camera module 10 can be the thickness direction of the electronic device 1.

[0075] Figure 2 for Figure 1 A three-dimensional structural diagram of the camera module 10. (See diagram below.) Figure 2As shown, the camera module 10 may include a lens assembly 12 and a variable aperture (VA) 11 disposed on the object side of the lens assembly 12.

[0076] Figure 3 for Figure 1 A top view of the camera module 10. Figure 4 for Figure 3 A schematic diagram of the AA cross-sectional structure of the camera module 10 is provided for easy observation. Figure 4 The cross-sectional lines of the structures other than the lens tube 121 are not shown.

[0077] like Figure 4 As shown, the lens assembly 12 may include a lens barrel 121 and optical lenses 122 fixed within the lens barrel 121. Exemplarily, there may be multiple optical lenses 122, which may be arranged sequentially along the optical axis O. In another embodiment, the number and structure of the optical lenses 122 are not limited to... Figure 4 As shown, for example, there may be only one optical lens 122.

[0078] refer to Figure 4 As shown, exemplarily, the lens assembly 12 may also include a photosensitive element (not shown) located on the image side of all optical lenses 122 for receiving and processing light passing through the optical lenses 122 to form an image.

[0079] Figure 5 for Figure 3 An exploded view of the camera module 10. (See diagram below.) Figure 5 As shown, the variable aperture 11 may include a base 119, a fixed bracket 118, a guide ring 117, a drive assembly 114, a rotating bracket 113, and a blade assembly 112, etc. The blade assembly 112 may include aperture blades 112b. The guide ring 117 may be fixed to the base 119, and the rotating bracket 113 may be rotatably connected to the base 119 via the guide ring 117; this is merely an illustrative example. In another embodiment, the variable aperture 11 may not have a guide ring 117, but instead may use a ball bearing and groove structure or other feasible structures to achieve the rotatable connection between the rotating bracket 113 and the base 119 and / or the fixed bracket 118.

[0080] Figure 6 This is a schematic diagram of the structure of the base 119 and lens assembly 12 in one embodiment.

[0081] like Figure 5 and Figure 6 As shown, the base 119 has a first light-transmitting hole 119d, which is used to transmit external light so that the light can pass through the optical lens 122 and be projected onto the surface of the photosensitive element to form an image.

[0082] like Figure 6 As shown, exemplarily, the base 119 may include a first annular portion 119e and a first side portion 119a. The first side portion 119a protrudes from the first annular portion 119e and surrounds the outer periphery of the first annular portion 119e, with the first side portion 119a facing the fixing bracket 118. The first side portion 119a can be used for fixed connection with the fixing bracket 118, as will be described below. In another embodiment, whether the base 119 is provided with the first side portion 119a can be determined according to product requirements.

[0083] like Figure 6 As shown, the first side portion 119a protrudes from the outer edge of the base 119, making the mating position of the fixing bracket 118 and the base 119 far from the optical lens 122. Even if the fixing bracket 118 is fixed at the mating point by adhesive bonding, the optical performance of the optical lens 122 will not be affected. In another embodiment, whether the base 119 is provided with the first side portion 119a can be determined according to product requirements.

[0084] like Figure 6 As shown, for example, the base 119 may include a positioning groove 119b. The positioning groove 119b can be used to position the guide ring 117 and also prevent lubricating oil from overflowing from the guide ring, as will be described below. In another embodiment, whether the base 119 is provided with a positioning groove 119b can be determined according to product requirements.

[0085] like Figure 6 As shown, the base 119 of the variable aperture 11 and the lens barrel 121 of the lens assembly 12 are integrally formed. For example, the base 119 and the lens barrel 121 can be integrally formed by injection molding.

[0086] refer to Figure 4 and Figure 6 As shown, in conventional solutions, after the base 119 of the variable aperture 11 is bonded to the lens barrel 121 of the lens assembly 12, the adhesive will shrink in volume during curing or temperature changes; this process can be called adhesive shrinkage. Adhesive shrinkage can cause stress deformation or displacement of the optical lens 122, thereby affecting the optical performance of the lens assembly 12. In this embodiment, the base 119 and the lens barrel 121 are an integral structure, eliminating the need for bonding and thus avoiding the impact of adhesive shrinkage on the optical performance of the lens assembly 12.

[0087] Combination Figure 4 and Figure 6As shown in this embodiment, in the camera module 10, the distance from the aperture blade 112b to the first optical lens 122 on the object side of the lens assembly 12 is fixed. Therefore, the overall height of the variable aperture 11 relative to the lens assembly 12 is fixed. When the base 119 and the lens barrel 121 are integrated, the first annular portion 119e of the base 119 is connected to the lens barrel 121. There is no need to set a separate bottom wall of the base 119 and an adhesive layer between the first annular portion 119e and the lens barrel 121. This can save space to set a larger drive assembly 114, which is beneficial to strengthen the thrust of the drive assembly 114 and avoid the rotation jamming problem of the rotating bracket 113 due to insufficient thrust.

[0088] Figure 7 for Figure 6 An enlarged schematic diagram of point B on the first side portion 119a. (See attached diagram.) Figure 6 and Figure 7 As shown, the outer side of the first side portion 119a may be recessed along the height direction of the first side portion 119a to form a first step 1191a, which is used to engage with the second step 1181a described below. In another embodiment, the outer side of the first side portion 119a may also protrude along the height direction of the first side portion 119a to form a first step 1191a. In another embodiment, whether the first side portion 119a is provided with a first step 1191a can be determined according to product requirements.

[0089] Figure 8 for Figure 6 A structural schematic diagram of the base 119 and lens assembly 12 from another perspective. (See diagram below.) Figure 8 As shown, exemplarily, the first side portion 119a may have a first notch 1192a extending through the first side portion 119a along its thickness direction, and the first notch 1192a extends through the side of the first side portion facing away from the first annular portion 119e. The number and position of the first notches 1192a can be determined as needed, for example, there may be two first notches 1192a arranged opposite each other. The first notches 1192a can be used to house a portion of the drive assembly 114, as will be described below. In another embodiment, whether or not to provide the first notches 1192a can be determined according to product requirements.

[0090] Combination Figure 5 and Figure 8 As shown, for example, the first annular portion 119e can be fixed with a magnetic absorbing piece 119c. The number and position of the magnetic absorbing pieces 119c can be determined as needed, for example, two magnetic absorbing pieces 119c can be arranged opposite each other. The magnetic absorbing pieces 119c can be used to limit the position of the rotating bracket 113 along the optical axis O, preventing the rotating bracket 113 from shaking, as will be explained below. In another embodiment, whether to provide magnetic absorbing pieces 119c can be determined according to product needs.

[0091] Figure 9 This is a three-dimensional structural diagram of the fixing bracket 118 in one embodiment. (In conjunction with...) Figure 5 and Figure 9 As shown, the fixing bracket 118 may include a second annular portion 118b and a second side portion 118a. The second side portion 118a protrudes from the second annular portion 118b and surrounds the outer periphery of the second annular portion 118b, with the second side portion 118a facing the base 119. The second side portion 118a can be used for fixed connection with the base 119, as will be described below. In another embodiment, whether or not to provide the second side portion 118a can be determined according to product requirements.

[0092] Combination Figure 5 and Figure 9 As shown, the outer side of the second side portion 118a may protrude along the height direction of the second side portion 118a to form a second step 1181a, which is used to engage with the first step 1191a. In another embodiment, the outer side of the second side portion 118a may also be recessed along the height direction of the second side portion 118a to form a second step 1181a. In another embodiment, whether the second side portion 118a is provided with a second step 1181a can be determined according to product requirements.

[0093] like Figure 9 As shown, exemplarily, the second side portion 118a may have a second notch 1182a extending through the second side portion 118a along its thickness direction, and the second notch 1182a extends through the side of the second side portion 118a facing away from the second annular portion 118b. The number and position of the second notches 1182a can be determined as needed, for example, there may be two oppositely arranged second notches 1182a. The second notches 1182a can be used to house a portion of the drive assembly 114, as will be described below. In another embodiment, whether to provide the second notches 1182a can be determined according to product requirements.

[0094] like Figure 9 As shown, exemplarily, the second annular portion 118b may include a plurality of first limiting posts 1181b evenly arranged circumferentially along the fixed bracket 118. Each first limiting post 1181b can be rotatably connected to an aperture blade 112b, as will be described below. In another embodiment, whether or not to provide first limiting posts 1181b can be determined according to product requirements.

[0095] Figure 10 This is a schematic diagram of the assembly structure of the fixing bracket 118 and the base 119. Figures 8-10As shown, the second side portion 118a of the fixing bracket 118 can engage with the first side portion 119a of the base 119, and the first annular portion 119e and the second annular portion 118b are disposed opposite to each other. The second step 1181a of the second side portion 118a can engage with the first step 1191a of the first side portion 119a. The arrangement of the second step 1181a of the second side portion 118a and the first step 1191a of the first side portion 119a enables assembly guidance and positioning of the fixing bracket 118, enhancing the assembly reliability of the fixing bracket 118 and the base 119.

[0096] It is understood that the second side portion 118a includes a second step 1181a, and the first side portion 119a includes a first step 1191a. The second step 1181a and the first step 1191a are engaged, but this is only an illustrative example. In another embodiment, the engagement structure of the second side portion 118a and the first side portion 119a may not be limited to what is described above, or the second side portion 118a and the first side portion 119a may not be engaged.

[0097] like Figure 10 As shown, for example, after the second side portion 118a and the first side portion 119a are snapped together, they can be further fixed by means of bonding or welding, so that the connection between the fixing bracket and the base 119 is more reliable.

[0098] like Figure 10 As shown, the second notch 1182a of the second side portion 118a can correspond to the position of the first notch 1192a of the first side portion 119a. The first notch 1192a and the second notch 1182a are connected to form an installation space, which is used to place a part of the drive assembly 114, as will be described below.

[0099] like Figure 10 As shown, the base 119 and the fixed bracket 118 can enclose a movable receiving cavity 11d, which is used to place the rotating bracket 113, the guide ring 117, the drive assembly 114, etc.

[0100] Figure 11 This is a three-dimensional structural schematic diagram of the guide ring 117 in one embodiment. For example... Figure 11 As shown, exemplarily, the guide ring 117 can be a continuous and closed integral ring structure. The guide ring 117 can be formed in one piece, resulting in a simple structure that simplifies the process and reduces the difficulty of assembling the guide ring 117 with other structures. Exemplarily, the guide ring 117 can be a circular ring, and its axis can coincide with the optical axis O. In another embodiment, the guide ring 117 can also be an elliptical ring, or its axis may not coincide with the optical axis O.

[0101] Figure 12 For base 119 and Figure 11 A schematic diagram of the assembly structure of the guide ring 117. (Combined with...) Figure 4 , Figure 5 and Figure 12 As shown, the guide ring 117 is fixed to the base 119 and located between the rotating bracket 113 and the base 119.

[0102] like Figure 12 As shown, for example, the guide ring 117 can be snapped into the positioning groove 119b, and the diameter of the guide ring 117 is less than or equal to the diameter of the positioning groove 119b.

[0103] refer to Figure 5 and Figure 12 As shown, the guide ring 117 serves as a guide and support structure for the rotating bracket 113. During the long-term rotation of the rotating bracket 113, it may experience wear. Therefore, lubricating oil can be added to the guide ring before and during use to reduce friction and make the rotation of the rotating bracket 113 smoother. The positioning groove 119b prevents lubricating oil from overflowing and seeping into the lens assembly 12 or other structures, thus avoiding any impact on the optical performance of the camera module 10.

[0104] like Figure 12 As shown, for example, the guide ring 117 can also be bonded to the base 119, making the fixation of the guide ring 117 more reliable.

[0105] It is understood that the above-described method of fixing the guide ring 117 to the base 119 is only an illustrative example and is not intended to limit the embodiments of this application.

[0106] like Figure 12 As shown, for example, the guide ring 117 can be made of ceramic, metal, or a plastic material with high wear resistance and high hardness. In another embodiment, the material of the guide ring 117 is not limited to those described above.

[0107] Figure 13 This is a three-dimensional structural schematic diagram of the rotating bracket 113 in one embodiment. (In conjunction with...) Figure 5 and Figure 13 As shown, the rotating bracket 113 is movably disposed in the movable receiving cavity 11d. The rotating bracket 113 has a second light-transmitting hole 113a, which is connected to the first light-transmitting hole 119d and is used to transmit external light.

[0108] Combination Figure 5 and Figure 13As shown, the rotating bracket 113 has a plurality of second limiting posts 113d on the side facing the aperture blade 112b. Each second limiting post 113d is used to slide with one aperture blade 112b, as will be described below. In another embodiment, whether or not to provide the second limiting posts 113d can be determined according to product requirements.

[0109] Combination Figure 5 and Figure 13 As shown, exemplarily, the outer wall of the rotating bracket 113 may be provided with a first groove 113b. The number and position of the first grooves 113b can be determined as needed, for example, there may be two first grooves 113b arranged opposite each other. The first groove 113b can be used to place a part of the drive assembly 114, which will be described below. In another embodiment, the outer wall of the rotating bracket 113 may not be provided with the first groove 113b.

[0110] Figure 14 for Figure 13 A three-dimensional structural diagram of the rotating support 113 from another perspective. Combined with... Figure 5 , Figure 13 and Figure 14 As shown, exemplarily, the lower surface 113h of the rotating bracket 113 may be provided with at least three abutment portions 113c. These abutment portions 113c may be spaced apart around the second light-transmitting hole 113a. The abutment portions 113c may be used to support the guide ring 117 to define the rotation trajectory of the rotating bracket 113. In another embodiment, the rotating bracket 113 may not have abutment portions 113c, and other guiding components may be provided to cooperate with the guide ring 117.

[0111] Figure 15 for Figure 14 An enlarged schematic diagram of point C on the rotating bracket 113. (Combined with...) Figure 14 and Figure 15 As shown, for example, the support portion 113c can be a cylindrical structure. The cylindrical shape of the support portion 113c helps to reduce the contact area between the support portion 113c and the guide ring 117, making the rotation of the rotating bracket 113 smoother, as will be explained below. In another embodiment, the shape of the support portion 113c can also be an elliptical cylinder, a cuboid, or a cube, etc.

[0112] Combination Figure 14 and Figure 15 As shown, for example, the support portion 113c can be integrally formed on the rotating bracket 113 using an integral injection molding process, which helps to simplify the process and reduce processing errors. In another embodiment, the forming process of the support portion 113c is not limited to that described above.

[0113] Combination Figure 14 and Figure 15As shown, exemplarily, the lower surface 113h of the rotating bracket 113 may be provided with at least three bosses 113e, each boss 113e being located between a bearing portion 113c and a second light-transmitting hole 113a. The bosses 113e can be used to contact the guide ring 117 to reduce the contact area between the guide ring 117 and the rotating bracket 113, thereby reducing the thrust required for the rotating bracket 113 to rotate. In another embodiment, the rotating bracket 113 may also be without bosses 113e.

[0114] Combination Figure 14 and Figure 15 As shown, for example, the boss 113e can be integrally formed on the rotating bracket 113 by a one-piece injection molding process, which helps to simplify the process and reduce processing errors. In another embodiment, the forming process of the boss 113e is not limited to that described above.

[0115] Combination Figure 14 and Figure 15 As shown, by way of example, each boss 113e can be connected to a support portion 113c, which facilitates manufacturing and provides a certain degree of support to the support portion 113c. In another embodiment, some or all of the bosses 113e may not be connected to the support portion 113c, but rather have a gap between them.

[0116] Combination Figure 5 , Figure 14 and Figure 15 As shown, exemplarily, each boss 113e may include multiple side surfaces 113f, each side surface 113f connecting the surface of the boss 113e facing the base 119 and the surface of the boss 113e facing away from the base 119. At least one side surface 113f of each boss 113e is a slope. The slope can be a sloping plane or a sloping rounded corner surface. The slope of the boss 113e can increase the strength of the boss 113e, prevent the boss 113e from breaking, and thus enhance the reliability of the boss 113e.

[0117] Figure 16 This is a schematic diagram of the assembly structure of the rotating bracket 113 and the guide ring 117. Figure 16 As shown, by way of example, along the direction perpendicular to the lower surface 113h, the height dimension of each bearing portion 113c can be greater than the radius of the cross-section of the guide ring 117 and smaller than the diameter of the cross-section of the guide ring 117.

[0118] Combination Figure 5 and Figure 16As shown, by making the height of the supporting portion 113c greater than the cross-sectional radius of the guide ring 117, sufficient contact between the supporting portion 113c and the guide ring 117 can be ensured; by making the height of the supporting portion 113c less than the cross-sectional diameter of the guide ring 117, contact between the supporting portion 113c and the base 119 can be avoided, thereby preventing interference between the supporting portion 113c and the rotating bracket 113. In another embodiment, the dimensional relationship between the supporting portion 113c and the guide ring 117 is not limited to that described above.

[0119] like Figure 16 As shown, by way of example, all the bearing parts 113c can be located on the outer ring side of the guide ring 117, so that the rotating bracket 113 can rotate along the trajectory of the guide ring 117.

[0120] like Figure 16 As shown, for example, at least one bearing portion 113c abuts against the outer ring side of the guide ring 117, that is, at least one bearing portion 113c abuts against the guide ring 117, which can avoid the influence of system tolerance on the rotation trajectory of the rotating bracket 113 and enhance the reliability of the rotating bracket 113 rotating along the trajectory of the guide ring 117.

[0121] like Figure 16 As shown, for example, each bearing portion 113c can abut against the outer ring side of the guide ring, that is, each bearing portion 113c can abut against the guide ring 117, which can increase the number of abutment points between the rotating bracket 113 and the guide ring 117, which is beneficial to the continuous rotation of the rotating bracket 113 and further reduces jamming; and, the multiple circumferentially spaced bearing portions 113c abut against the outer ring side of the guide ring 117, which is beneficial to control the movement trajectory of the aperture blades 112b, making the aperture hole more round, which is beneficial to reduce aberrations and improve imaging quality, as will be further explained below.

[0122] Combination Figures 14-16 As shown, each boss 113e can contact and abut against the guide ring 117, and the projection of the guide ring 117 and each boss 113e in the direction perpendicular to the lower surface 113h at least partially overlaps, so that there is a gap between the guide ring 117 and the lower surface 113h of the rotating bracket 113. That is, each boss 113e abuts against the guide ring 117 in the direction perpendicular to the lower surface 113h, which can reduce the contact area between the guide ring 117 and the rotating bracket 113, help reduce the friction force on the rotating bracket 113, and improve the jamming problem when the rotating bracket 113 rotates.

[0123] Understandable Figures 14-16As shown and described above, the guide ring 117 is fixed to the first annular portion 119e of the base 119. The lower surface 113h of the rotating bracket 113 is provided with at least three bearing portions 113c and at least three bosses 113e. This is only an illustrative example. In another embodiment, the guide ring 117 is fixed to the lower surface 113h, and the first annular portion 119e is provided with at least three bearing portions 113c and at least three bosses 113e. The bearing portions 113c are distributed at intervals around the first light-transmitting hole 119d. Each boss 113e is located between a bearing portion 113c and the first light-transmitting hole 119d. The bearing portions 113c are located on the outer ring side of the guide ring 117. The bosses 113e abut against the guide ring 117, and the projections of the guide ring 117 and each boss 113e in a direction perpendicular to the first annular portion 119e at least partially overlap, so that there is a gap between the guide ring 117 and the first annular portion 119e. The solution in this embodiment also allows the rotating bracket 113 to rotate along the trajectory of the guide ring 117, and improves the problem of the rotating bracket 113 getting stuck during rotation.

[0124] like Figure 4 and Figure 5 As shown, the drive assembly 114 is connected to the rotating bracket 113. The drive assembly 114 drives the rotating bracket 113 to rotate relative to the base 119 and drives the aperture blades 112b to rotate relative to the base 119, thereby adjusting the size of the aperture hole 1121b, as will be described below. For example, the drive assembly 114 may include a magnet 114a and a coil 114b. The number of magnets 114a and coils 114b can be determined as needed; for example, there may be two magnets 114a and two coils 114b.

[0125] Figure 17 This is a schematic diagram of the assembly structure of the rotating bracket 113 and the magnet 114a. (Combined with...) Figure 13 and Figure 17 As shown, magnet 114a can be fixed to the outside of rotating bracket 113. For example, magnet 114a can be fixed in the first groove 113b of rotating bracket 113, which helps to save space and improve the stability of the connection between magnet 114a and rotating bracket 113.

[0126] Combination Figures 4-5 and Figure 10As shown, coil 114b can be fixed to base 119 and mounting bracket 118. "Fixed to base 119 and mounting bracket 118" can mean coil 114b is directly fixed to base 119 and mounting bracket 118, or indirectly fixed to base 119 and mounting bracket 118 via circuit board 116 (described below). For example, coil 114b can be located within the mounting space formed by the second notch 1182a and the first notch 1192a. Magnet 114a and coil 114b can be arranged sequentially along the radial direction of rotating bracket 113, with a gap between them. Coil 114b can generate a magnetic field by being energized and interact with magnet 114a, thereby driving the movement of magnet 114a. Under the drive of magnet 114a, rotating bracket 113 can rotate along guide ring 117. "Rotating along guide ring 117" means that the rotating bracket 113 rotates against the guide ring 117, and the rotation trajectory of the rotating bracket 113 coincides with the shape of the guide ring 117.

[0127] It is understood that the coil 114b is fixed to the base 119 and the fixing bracket 118, which is only an illustrative example. In another embodiment, the coil 114b may also be fixed to the base 119 or the fixing bracket 118 separately.

[0128] Combination Figures 4-5 As shown, magnets 114a and coils 114b are arranged sequentially along the radial direction of the rotating bracket 113. This arrangement fully utilizes the groove of the rotating bracket 113 and the space enclosed by the fixed bracket 118 and the base 119, allowing magnets 114a and coils 114b to be designed to be larger. This enhances the thrust and prevents the rotating bracket 113 from jamming due to insufficient thrust. In another embodiment, magnets 114a and coils 114b can also be arranged sequentially along the axis (e.g., axis O) of the rotating bracket 113.

[0129] Combination Figures 4-5 As shown, magnet 114a is fixed on rotating bracket 113, and the position of coil 114b is fixed. Magnet 114a and rotating bracket 113 rotate together. This driving method can be called moving magnet (MM) drive. Moving magnet drive can result in a higher magnetic field strength, generating stronger thrust, which is beneficial to the rotation of rotating bracket 113. Furthermore, coil 114b, which requires power, does not need to be mounted on rotating bracket 113. Coil 114b can be directly electrically connected to circuit board 116 (described below), thereby simplifying the electrical connection structure of variable aperture 11.

[0130] refer to Figures 4-5 and Figure 10As shown, in another embodiment, the coil 114b can be fixed to the outside of the rotating bracket 113, for example, fixed in the first groove 113b of the rotating bracket 113. The magnet 114a can be fixed to the base 119 and the rotating bracket 113, for example, located in the mounting space formed by the second notch 1182a and the first notch 1192a. The coil 114b and the magnet 114a can be arranged sequentially along the radial direction of the rotating bracket 113. The coil 114b generates a magnetic field by being energized and interacts with the magnet 114a, thereby driving the rotating bracket 113 to rotate along the guide ring 117. In this embodiment, the position of the magnet 114a is fixed, and the coil 114b and the rotating bracket 113 rotate together. This driving method can be called moving coil (MC) drive. Because the coil 114b is relatively lightweight, the rotation response speed of the rotating bracket 113 is faster and the motion inertia is smaller, which allows for more precise control of the aperture.

[0131] It is understood that the magnet 114a is fixed to the base 119 and the fixing bracket 118, which is only an illustrative example. In another embodiment, the magnet 114a may also be fixed to the base 119 or the fixing bracket 118 separately.

[0132] It is understood that the structure of the driving component 114 described above is only a few illustrative examples, and the embodiments of this application do not specifically limit the structure of the driving component 114.

[0133] Figure 18 This is a three-dimensional structural diagram of circuit board 116. (For example...) Figure 5 and Figure 18 As shown, the variable aperture 11 may also include a circuit board 116. The circuit board 116 may be, for example, a flexible printed circuit (FPC).

[0134] Combination Figures 4-5 and Figure 18 As shown, circuit board 116 surrounds the outside of the mounting bracket 118 and base 119, and drive assembly 114 is electrically connected to circuit board 116. The circuit board 116 is located on the outside of the mounting bracket 118 and base 119, rather than on the bottom surface of base 119. This facilitates the integral injection molding of base 119 and lens barrel 121, thereby avoiding adhesion between base 119 and lens barrel 121 and preventing shrinkage from affecting the optical performance of lens assembly 12. In another embodiment, circuit board 116 may only surround the outside of the mounting bracket 118 or base 119. In another embodiment, circuit board 116 may also be fixed to the bottom surface of base 119.

[0135] Combination Figures 4-5 and Figure 18As shown, for example, circuit board 116 may include circuit board body 116c and pins 116b. Pins 116b may be connected to circuit board body 116c and form an angle. For example, pins 116b may be perpendicular or approximately perpendicular to circuit board body 116c. Pins may also be referred to as pads.

[0136] Combination Figures 4-5 and Figure 18 As shown, the structural design of the circuit board 116 described above can be referred to as a two-fold surrounding pin design. This structural design has extremely high space utilization, does not occupy the extra volume of the variable aperture 11, and is conducive to meeting the miniaturization requirements of the camera module 10. In another embodiment, the structure of the circuit board 116 is not limited to that described above.

[0137] Combination Figures 4-5 and Figure 17 As shown, a reinforcing plate 116a can be attached to the outside of the circuit board 116. The reinforcing plate 116a can be, for example, a SUS (steel use stainless steel) sheet. The reinforcing plate 116a can increase the strength of the circuit board 116 and improve its reliability. The position of the reinforcing plate 116a can correspond to the position of the magnet 114a of the drive assembly 114 described below, so as to fix the circuit board 116 by magnetic attraction.

[0138] It is understood that the circuit board 116 is fixed by magnetic attraction, which is only an illustrative example and not a limitation on the embodiments of this application. In another embodiment, whether to provide a reinforcing plate 116a can be determined as needed, and the position of the reinforcing plate 116a is not limited to that described above.

[0139] Combination Figure 4 and Figure 5 As shown, the variable aperture 11 may also include a position sensor 115. The position sensor 115 can be fixed inside the circuit board 116. For example, the position sensor 115 can be fixed inside the coil 114b, which is beneficial for efficient use of space. The position sensor 115 can detect the relative displacement of the magnet 114a on the rotating bracket 113, thereby monitoring the change in the rotation angle of the rotating bracket 113, and calculating the position of the aperture blade 112b and the size of the aperture hole 1121b, which is beneficial for the stepless continuous change of the aperture hole 1121b, as will be further explained below.

[0140] Combination Figure 4 and Figure 5As shown, for example, the position sensor 115 can be a Hall sensor, which is a semiconductor device that integrates a Hall element and signal processing circuitry onto the same integrated circuit (IC), and therefore can also be called an IC sensor. The Hall sensor can convert changes in magnetic field strength into electrical signals, thereby sensing the position of the magnet 114a. In another embodiment, the position sensor 115 can also be other types of sensors.

[0141] Figure 19 This is a schematic diagram of the structure of the aperture blade 112b in one embodiment. Figure 20 This is a schematic diagram showing the connection between the aperture blade 112b and the fixed bracket 118 and the rotating bracket 113.

[0142] like Figure 19 As shown, the number of aperture blades 112b can be determined as needed; for example, there can be 6 aperture blades 112b.

[0143] Combination Figure 5 , Figure 19 and Figure 20 As shown, all aperture blades 112b are movably mounted on the fixed bracket 118 and connected to the rotating bracket 113. All aperture blades 112b are arranged in a ring along the circumference of the rotating bracket 113, forming an aperture hole 1121b with an adjustable size. The aperture hole 1121b communicates with the second light-transmitting hole 113a to allow external light to pass through. The rotating bracket 113 drives the aperture blades 112b to rotate relative to the base 119 under the drive of the driving assembly 114, thereby adjusting the size of the aperture hole 1121b.

[0144] Combination Figure 19 and Figure 20 As shown, each aperture blade 112b may have a rotating connection hole 1123b and a sliding guide groove 1122b extending through the aperture blade 112b. Each first limiting post 1181b is disposed within a rotating connection hole 1123b, so that each aperture blade 112b is rotatably connected to the fixed bracket 118. Each second limiting post 113d is disposed within a sliding guide groove 1122b, so that each aperture blade 112b is movably connected to the rotating bracket 113.

[0145] Combination Figure 19 and Figure 20 As shown, along the rotating bracket 113 Figure 20In the direction of the arc-shaped arrow, during rotation relative to the fixed bracket 118, the second limiting post 113d on the rotating bracket 113 moves along the sliding guide groove 1122b on the aperture blade 112b, thereby pushing the blade 23 to rotate around the axis of the first limiting post 1181b. During the movement of the multiple aperture blades 112b, the size of the aperture hole 1121b changes accordingly. The two ends of the sliding guide groove 1122b are the two extreme positions of the second limiting post 113d. When the second limiting post 113d slides to either of these two extreme positions, the aperture diameter of the aperture hole 1121b can change to the maximum aperture diameter (e.g., 5.6 mm) or the minimum aperture diameter (e.g., 1.745 mm). The aperture diameter of the aperture hole 1121b can also be referred to as the aperture opening size.

[0146] like Figure 4 and Figure 5 As shown, exemplarily, the blade assembly 112 may further include spacers 112a and 112c, with spacers 112a, aperture blades 112b, and spacers 112c stacked sequentially along the optical axis O. Spacers 112a and 112c provide mechanical support for the aperture blades 112b. Exemplarily, spacers 112a and 112c may be SOMA light-shielding spacers, serving both light-shielding and mechanical support functions to prevent stray light from entering the camera module 10 and affecting image quality. In another embodiment, whether or not spacers 112a and 112c are provided can be determined according to product requirements.

[0147] like Figure 4 and Figure 5 As shown, exemplarily, the variable aperture 11 may also include a cover plate 111, which may be located at the top of the variable aperture 11 and fixedly connected to the fixing bracket 118. The cover plate 111 can protect the aperture blades 112b and other structures inside the variable aperture 11, prevent damage to the internal structure of the variable aperture 11 from external physical impacts, and also serve as a dustproof and sealing function. In another embodiment, whether to provide a cover plate 111 can be determined according to product requirements.

[0148] Combination Figures 2-20 As shown, in this embodiment, the guide ring 117 is a continuous closed integral ring structure, which is convenient for manufacturing and assembly and helps to simplify the process. This is just an illustrative example. In another embodiment, the guide ring 117 can also be a multi-segment structure. When the guide ring 117 experiences local wear, only a certain segment needs to be replaced, which helps to reduce maintenance costs.

[0149] It is understood that in the embodiments described above, the rotating bracket 113 is rotatably connected to the base 119 via the guide ring 117, which is only an illustrative example. In other embodiments, the base 119 may be provided with a ball groove and balls located in the ball groove, and the rotating bracket 113 may be rotatably connected to the base 119 via the balls.

[0150] It is understood that in the embodiments described above, the lens barrel 121 of the lens assembly 12 is a one-piece structure, and all optical lenses 122 are located inside the lens barrel 121; this is merely an illustrative example. In other embodiments, the number of lens barrels may be more than one, for example, there may be two or three lens barrels, each containing at least one optical lens.

[0151] The following explanation uses the lens assembly 12, which has two lens barrels, as an example.

[0152] Figure 21 This is a three-dimensional structural diagram of the camera module 10 in another embodiment. Figure 22 for Figure 21 A top view of the camera module 10 in the middle. Figure 23 for Figure 22 A schematic diagram of the DD cross-sectional structure of the camera module 10 in the image, for ease of observation. Figure 23 The cross-sectional lines of the structures other than the second lens tube 121b are not shown. Figure 24 for Figure 21 An exploded view of the camera module 10.

[0153] like Figure 23 and Figure 24 As shown, the lens barrel 121 may include a first lens barrel 121a and a second lens barrel 121b, and the optical lens 122 may include a first optical lens 122a and a second optical lens 122b. For example, there may be one first optical lens 122a, located within the first lens barrel 121a. For example, there may be multiple second optical lenses 122b, located within the second lens barrel 121b. The second optical lens 122b can be used to receive light transmitted through the aperture 1121b and the first optical lens 122a.

[0154] Understandable, Figures 23-24 The structures of the first lens barrel 121a and the second lens barrel 121b, as well as the structures and quantities of the first optical lens 122a and the second optical lens 122b, shown and described above, are merely illustrative examples and are not intended to limit the embodiments of this application. In another embodiment, the first optical lens 122a may be one or more, and the second optical lens 122b may also be one or more.

[0155] like Figure 23 and Figure 24 As shown, for example, the first lens barrel 121a and the first optical lens 122a within the first lens barrel 121a can be collectively referred to as the first lens group, and the second lens barrel 121b and the second optical lens 122b within the second lens barrel 121b can be collectively referred to as the second lens group. The first lens group and the second lens group can move relative to each other along the optical axis O to adjust the focal length of the camera module 10.

[0156] refer to Figure 24 As shown, exemplarily, the lens assembly 12 may also include a photosensitive element (not shown) located on the image side of all the second optical lenses 122b, for receiving and processing light passing through the first optical lens 122a and the second optical lens 122b to form an image.

[0157] like Figure 24 As shown, the variable aperture 11 may include a base 119, a fixed bracket 118, ball bearings 11e, a drive assembly 114, a rotating bracket 113, and a blade assembly 112, etc. The blade assembly 112 may include aperture blades 112b. For example, there may be four ball bearings 11e, which are disposed on the base 119 and are used to reduce the frictional force during the rotation of the rotating bracket 113 relative to the base 119. In another embodiment, the number of ball bearings 11e may not be limited to... Figure 24 As shown. In another embodiment, the variable aperture 11 may not have a ball bearing 11e, but instead uses... Figure 5 The guide ring or other feasible structure shown enables the rotatable connection between the rotating bracket 113 and the base 119 and / or the fixed bracket 118.

[0158] like Figure 23 and Figure 24 As shown, exemplarily, the variable aperture 11 may also include a cover plate 111, which may be located at the top of the variable aperture 11 and fixedly connected to the fixing bracket 118. The cover plate 111 can protect the aperture blades 112b and other structures inside the variable aperture 11, prevent damage to the internal structure of the variable aperture 11 from external physical impacts, and also serve as a dustproof and sealing function. In another embodiment, whether to provide a cover plate 111 can be determined according to product requirements.

[0159] Figure 25 for Figure 24 A schematic diagram of the structure of the base 119, the first lens barrel 121a, and the first optical lens 122a. (See attached diagram.) Figure 25As shown, exemplarily, the base 119 may include a first annular portion 119e and a first side portion 119a protruding from the first annular portion 119e and surrounding the outer periphery of the first annular portion 119e, with the first side portion 119a facing the fixing bracket 118. The first side portion 119a can be used for fixed connection with the fixing bracket 118, as will be described below. In another embodiment, whether the base 119 is provided with the first side portion 119a can be determined according to product requirements.

[0160] like Figure 24 and Figure 25 As shown, the base 119 has a first light-transmitting hole 119d, which is used to transmit external light so that the light can pass through the optical lens 122 and be projected onto the surface of the photosensitive element to form an image.

[0161] like Figure 25 As shown, the base 119 may include a first annular portion 119e and a first side portion 119a. The first side portion 119a protrudes from the first annular portion 119e and surrounds the outer periphery of the first annular portion 119e, with the first side portion 119a facing the fixing bracket 118. The first side portion 119a can be used for fixed connection with the fixing bracket 118, as will be described below. In another embodiment, whether the base 119 is provided with the first side portion 119a can be determined according to product requirements.

[0162] like Figure 25 As shown, the first side portion 119a protrudes from the outer edge of the base 119, making the mating position of the fixing bracket 118 and the base 119 far away from the first optical lens 122a and the second optical lens 122b. Even if the fixing bracket 118 is fixed at the mating point by adhesive bonding, the optical performance of the first optical lens 122a and the second optical lens 122b will not be affected. In another embodiment, whether the base 119 is provided with the first side portion 119a can be determined according to product requirements.

[0163] like Figure 25 As shown, for example, the base 119 may include ball grooves 119f, the number of which may correspond to the number of balls 11e. The ball grooves 119f can be used to position the balls 11e. In another embodiment, whether the base 119 is provided with ball grooves 11e can be determined according to product requirements.

[0164] like Figure 25 As shown, the base 119 of the variable aperture 11 and the first lens barrel 121a of the lens assembly 12 are integrally formed. Exemplarily, the base 119 and the first lens barrel 121a can be integrally formed by injection molding.

[0165] Combination Figures 23-25As shown, in this embodiment, the base 119 and the first lens barrel 121a are an integral structure, so that the base 119 and the first lens barrel 121a do not need to be glued, thereby avoiding the impact of glue shrinkage on the optical performance of the lens assembly 12, and also reducing the number of parts of the camera module and reducing the assembly complexity.

[0166] Combination Figure 23 and Figure 25 As shown, in this embodiment, in the camera module 10, the distance from the aperture blade 112b to the first optical lens 122a on the object side of the lens assembly 12 is fixed. Therefore, the overall height of the variable aperture 11 relative to the lens assembly 12 is fixed. When the base 119 and the first lens barrel 121a are integrated, the first annular portion 119e of the base 119 is connected to the first lens barrel 121a. There is no need to set a separate bottom wall of the base 119 and an adhesive layer between the first annular portion 119e and the first lens barrel 121a. This can save space to set a larger drive assembly 114, which is beneficial to strengthen the thrust of the drive assembly 114 and avoid the rotation jamming problem of the rotating bracket 113 due to insufficient thrust.

[0167] like Figure 25 As shown, exemplarily, the first side portion 119a may have a first notch 1192a extending through the first side portion 119a along its thickness direction, and the first notch 1192a extends through the side of the first side portion facing away from the first annular portion 119e. The number and position of the first notches 1192a can be determined as needed, for example, there may be two first notches 1192a arranged opposite each other. The first notches 1192a can be used to house a portion of the drive assembly 114, as will be described below. In another embodiment, whether or not to provide the first notches 1192a can be determined according to product requirements.

[0168] Combination Figure 24 and Figure 25 As shown, for example, the first annular portion 119e can be fixed with magnetic absorbing pieces 119c. The number and position of the magnetic absorbing pieces 119c can be determined as needed, for example, two magnetic absorbing pieces 119c can be arranged opposite each other. The magnetic absorbing pieces 119c can be used to limit the position of the rotating bracket 113 along the optical axis O, preventing the rotating bracket 113 from shaking. In another embodiment, whether to provide magnetic absorbing pieces 119c can be determined according to product needs.

[0169] Figure 26 for Figure 24 A three-dimensional structural diagram of the fixed bracket 118. (Combined with...) Figure 24 and Figure 26As shown, the fixing bracket 118 may include a second annular portion 118b and a second side portion 118a. The second side portion 118a protrudes from the second annular portion 118b and surrounds the outer periphery of the second annular portion 118b, with the second side portion 118a facing the base 119. The second side portion 118a can be used for fixed connection with the base 119, as will be described below. In another embodiment, whether or not to provide the second side portion 118a can be determined according to product requirements.

[0170] like Figure 26 As shown, for example, the second annular portion 118b may include a plurality of first limiting posts 1181b evenly arranged along the circumference of the fixed bracket 118, each first limiting post 1181b being rotatably connected to an aperture blade 112b. In another embodiment, whether or not to provide first limiting posts 1181b can be determined according to product requirements.

[0171] like Figure 26 As shown, by way of example, the second annular portion 118b may further include a plurality of third limiting posts 1182b evenly arranged along the circumference of the fixed bracket 118, each third limiting post 1182b being used to engage with the cover plate 111. In another embodiment, the third limiting posts 1182b may be omitted.

[0172] Figure 27 for Figure 24 A schematic diagram of the assembly structure of the fixed bracket 118 and the base 119. (See attached diagram.) Figures 25-27 As shown, the second side portion 118a of the fixed bracket 118 can be fixedly connected to the first side portion 119a of the base 119. The first annular portion 119e and the second annular portion 118b are arranged opposite to each other.

[0173] like Figure 27 As shown, the base 119 and the fixed bracket 118 can enclose a movable receiving cavity 11d, which is used to house the rotating bracket 113, the ball bearing 11e, the drive assembly 114, and the circuit board 116, etc.

[0174] Figure 28 for Figure 24 A three-dimensional structural diagram of the rotating bracket 113. (Combined with...) Figure 27 and Figure 28 As shown, the rotating bracket 113 is movably disposed in the movable receiving cavity 11d. The rotating bracket 113 has a second light-transmitting hole 113a, which is connected to the first light-transmitting hole 119d and is used to transmit external light.

[0175] Combination Figure 24 and Figure 28As shown, the rotating bracket 113 has a plurality of second limiting posts 113d on the side facing the aperture blade 112b, each second limiting post 113d being slidably connected to one aperture blade 112b. In another embodiment, whether or not to provide second limiting posts 113d can be determined according to product requirements.

[0176] Figure 29 for Figure 28 A three-dimensional structural diagram of the rotating support 113 from another perspective. Combined with... Figure 24 and Figure 29 As shown, the bottom wall of the rotating bracket 113 facing the first annular portion 119e may be provided with a second groove 113i. The number and position of the second grooves 113i can be determined as needed, for example, there may be two second grooves 113i arranged opposite each other. The second grooves 113i can be used to place a part of the drive assembly 114, which will be described below. In another embodiment, the bottom wall of the rotating bracket 113 may not be provided with the second grooves 113i.

[0177] like Figure 23 and Figure 24 As shown, the drive assembly 114 is connected to the rotating bracket 113. The drive assembly 114 drives the rotating bracket 113 to rotate relative to the base 119 and drives the aperture blade 112b to rotate relative to the base 119, thereby adjusting the size of the aperture hole 1121b. For example, the drive assembly 114 may include a magnet 114a and a coil 114b. The number of magnets 114a and coils 114b can be determined as needed; for example, there can be two magnets 114a and two coils 114b.

[0178] Figure 30 This is a schematic diagram of the assembly structure of the rotating bracket 113 and the magnet 114a. Figure 30 As shown, magnet 114a can be fixed to rotating bracket 113. For example, magnet 114a can be fixed in the second groove 113i of rotating bracket 113, which helps to save space and improve the stability of the connection between magnet 114a and rotating bracket 113.

[0179] Figure 31 This is a schematic diagram of the assembly structure of the base 119, circuit board 116, and coil 114b, etc. Figure 31As shown, coil 114b can be fixed to base 119. "Fixed to base 119" can mean that coil 114b's support is fixed to base 119, or that coil 114b is indirectly fixed to base 119 via circuit board 116 (described below). Magnets 114a and coil 114b can be arranged sequentially along the axial direction of rotating bracket 113, for example, sequentially along optical axis O. The supports for magnets 114a and coil 114b can have a gap. Coil 114b can generate a magnetic field by being energized and interact with magnet 114a, thereby driving the movement of magnet 114a. Under the influence of magnet 114a, rotating bracket 113 can rotate relative to base 119.

[0180] like Figure 23 and Figure 24 As shown, magnets 114a and coils 114b are arranged sequentially along the axial direction of the rotating bracket 113. This arrangement helps to save dimensions in the height direction of the base 119 and is beneficial for adapting to the structure of the first lens barrel 121a with fewer or thinner first optical lenses 122a. In another embodiment, for example, when the first lens barrel 121a has more or thicker first optical lenses 122a, magnets 114a and coils 114b can also be arranged sequentially along the radial direction of the rotating bracket 113. This allows magnets 114a and coils 114b to be designed to be larger, which helps to strengthen the thrust and avoid the problem of rotational jamming caused by insufficient thrust in the rotating bracket 113.

[0181] Combination Figure 23 and Figure 24 As shown, magnet 114a is fixed on rotating bracket 113, and the position of coil 114b is fixed. Magnet 114a and rotating bracket 113 rotate together. This driving method can be called moving magnet (MM) drive. Moving magnet drive can result in a higher magnetic field strength, generating stronger thrust, which is beneficial to the rotation of rotating bracket 113. Furthermore, coil 114b, which requires power, does not need to be mounted on rotating bracket 113. Coil 114b can be directly electrically connected to circuit board 116 (described below), thereby simplifying the electrical connection structure of variable aperture 11.

[0182] refer to Figures 23-24As shown, in another embodiment, the coil 114b can be fixed to the rotating bracket 113, for example, within the second groove 113i of the rotating bracket 113. The magnet 114a can be fixed to the base 119. The coil 114b and the magnet 114a can be arranged sequentially along the axial direction of the rotating bracket 113. The coil 114b generates a magnetic field by being energized and interacts with the magnet 114a, thereby driving the rotating bracket 113 to rotate relative to the base 119. In this embodiment, the position of the magnet 114a is fixed, and the coil 114b and the rotating bracket 113 rotate together. This driving method can be called moving coil (MC) drive. Because the coil 114b is relatively lightweight, the rotation response speed of the rotating bracket 113 is faster, and the motion inertia is smaller, allowing for more precise control of the aperture.

[0183] Figure 31 This is a schematic diagram of the assembly structure of the base 119, circuit board 116, coil 114b, and position sensor 115, etc. Figure 24 As shown, the variable aperture 11 may also include a circuit board 116. The circuit board 116 may, for example, be a flexible printed circuit board (FPC). Combined with... Figures 23-25 and Figure 31 As shown, circuit board 116 can be fixed to the first annular portion 119e, and drive assembly 114 is electrically connected to circuit board 116. For example, coil 114b can be fixed to and electrically connected to circuit board 116.

[0184] Combination Figure 27 and Figure 31 As shown, for example, the circuit board 116 may include an integral circuit board body 116c and pins 116b, the circuit board body 116c may be located in the movable accommodating cavity 11d, and the pins 116b may be exposed from the first notch 1192a.

[0185] Combination Figure 4 , Figure 5 and Figure 31 As shown, the variable aperture 11 may also include a position sensor 115. The position sensor 115 can be fixed to the circuit board 116. For example, the position sensor 115 can be fixed inside the coil 114b, which is beneficial for efficient space utilization. The position sensor 115 can detect the relative displacement of the magnet 114a on the rotating bracket 113, thereby monitoring the change in the rotation angle of the rotating bracket 113 and calculating the position of the aperture blade 112b and the size of the aperture hole 1121b, which is beneficial for the stepless continuous change of the aperture hole 1121b. For example, the position sensor 115 can be a Hall sensor. In another embodiment, the position sensor 115 can also be other types of sensors.

[0186] In this embodiment, the structure and working principle of the aperture blade 112b can be compared with... Figures 2-20 The embodiments shown are consistent with those described in this embodiment, but may not be limited to those described in this embodiment, and will not be elaborated further here.

[0187] Understandably, in Figures 21-31 Based on the embodiment shown, a cutting plane can be provided on the outer edge of the second mirror group, which will be described below with reference to the accompanying drawings.

[0188] Figure 32 This is a three-dimensional structural diagram of the camera module in another embodiment. (See diagram below.) Figure 32 As shown, the outer edge of the second lens barrel 121b may be provided with a first cutting plane 1211b, and the outer edge of each second optical lens may be provided with a second cutting plane (not shown). The position of the second cutting plane may correspond to the first cutting plane 1211b. For example, the outer edge of the second lens barrel 121b may be provided with four first cutting planes 1211b, which are opposite each other in pairs. Correspondingly, the outer edge of each second optical lens may be provided with four second cutting planes, which are also opposite each other in pairs. For example, these first cutting planes 1211b and second cutting planes may be parallel to the axial direction (e.g., the optical axis O direction) of the second lens barrel 121b.

[0189] It is understood that the first cutting plane 1211b and the second cutting plane are parallel to the axial direction of the second lens barrel 121b; this is merely an illustrative example. In another embodiment, the positional relationship between the first cutting plane 1211b and the second cutting plane and the axis of the second lens barrel 121b is not limited to that described above. For example, the first cutting plane 1211b and the second cutting plane may intersect with the axis of the second lens barrel 121b.

[0190] like Figure 32 As shown, for example, the first cutting plane 1211b can be obtained by cutting the second lens barrel 121b from the outer edge inward, and the outer peripheral surface of the second lens barrel 121b other than the first cutting plane 1211b can be a curved surface; the second cutting plane can be obtained by cutting the outer edge of the second optical lens, and the outer peripheral surface of the second optical lens other than the second cutting plane can be a curved surface. This processing technology can be called edge trimming.

[0191] In this embodiment, by chopping the second lens barrel 121b and the second optical lens, the volume of the second lens barrel 121b can be reduced, which is beneficial to the miniaturization of the camera module 10 and the electronic device 1.

[0192] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more.

[0193] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Features specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0194] The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," "top," and "bottom," are only for reference to the directions in the accompanying drawings. These directional terms are used to better and more clearly explain and understand the embodiments of this application, and are not intended to explicitly or implicitly suggest that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, etc., and therefore should not be construed as limiting the embodiments of this application.

[0195] In the description of the embodiments in this application, unless otherwise stated, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0196] The above description is merely a specific embodiment 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. A camera module, characterized in that, The lens assembly includes a lens assembly and a variable aperture disposed on the object side of the lens assembly. The lens assembly includes a lens barrel and optical lenses inside the lens barrel. The variable aperture includes a base, a fixed bracket, a rotating bracket, a blade assembly, and a drive assembly. The base has a first light-transmitting hole, and the base and the lens barrel are an integral structure; The fixed bracket is fixedly connected to the base, and the fixed bracket and the base together form a movable receiving cavity; The rotating bracket is movably disposed in the movable accommodating cavity and has a second light-transmitting hole, the second light-transmitting hole communicating with the first light-transmitting hole, and the rotating bracket being rotatably connected to the base and / or the fixed bracket; The blade assembly includes multiple aperture blades, which are movably mounted on the fixed bracket and connected to the rotating bracket; the multiple aperture blades are arranged in a ring along the circumferential direction of the rotating bracket and form an aperture with an adjustable aperture size; the aperture is connected to the second light-transmitting hole. The drive assembly is connected to the rotating bracket, and the drive assembly is used to drive the rotating bracket to rotate relative to the base and drive the plurality of aperture blades to rotate relative to the base, so as to adjust the size of the aperture hole; The optical lens is used to receive light passing through the aperture.

2. The camera module according to claim 1, characterized in that, The lens barrel includes a first lens barrel and a second lens barrel, and the optical lens includes a first optical lens and a second optical lens. The first optical lens is located inside the first lens barrel, and the second optical lens is located inside the second lens barrel. The first lens barrel and the base are an integral structure. The second optical lens is used to receive light passing through the aperture and the first optical lens.

3. The camera module according to claim 1, characterized in that, The base includes a first annular portion and a first side portion, wherein the first side portion protrudes from the first annular portion and surrounds the outer periphery of the first annular portion; The fixing bracket includes a second annular portion and a second side portion, wherein the second side portion protrudes from the second annular portion and surrounds the outer periphery of the second annular portion; The first side portion is fixedly connected to the second side portion, and the first annular portion and the second annular portion are disposed opposite to each other.

4. The camera module according to claim 3, characterized in that, The outer side of the first side portion is recessed or protruded along the height direction of the first side portion to form a first step; The outer side of the second side portion protrudes or recesses along the height direction of the second side portion to form a second step, and the second step engages with the first step.

5. The camera module according to claim 3, characterized in that, The driving component includes a magnet and a coil. One of the magnet and the coil is fixed to the outside of the rotating bracket, and the other of the magnet and the coil is fixed to the base and / or the fixed bracket. The magnet and the coil are arranged in sequence along the radial direction of the rotating bracket, and the coil is used to drive the rotating bracket to rotate together with the magnet.

6. The camera module according to claim 5, characterized in that, The first side portion has a first notch extending through the first side portion along its thickness direction, the first notch penetrating the side portion opposite to the first annular portion. The second side portion has a second notch extending through the second side portion along its thickness direction, the second notch penetrating the side portion opposite to the second annular portion. The first notch and the second notch communicate to form an installation space, the installation space being used to place one of the magnet and the coil; and / or The outer wall of the rotating bracket is provided with a first groove for placing the magnet and the other of the coil.

7. The camera module according to claim 2, characterized in that, The driving component includes a magnet and a coil. One of the magnet and the coil is fixed to the rotating bracket, and the other of the magnet and the coil is fixed to the base. The magnet and the coil are arranged sequentially along the axial direction of the rotating bracket, and the coil is used to drive the rotating bracket to rotate together with the magnet.

8. The camera module according to claim 7, characterized in that, The base includes a first annular portion and a first side portion, wherein the first side portion protrudes from the first annular portion and surrounds the outer periphery of the first annular portion; The rotating bracket has a second groove on the bottom wall facing the first annular part, and the magnet or the coil is fixed in the second groove.

9. The camera module according to claim 2, characterized in that, The outer edge of the second lens barrel is provided with a first cutting plane, and the outer edge of each of the second optical lenses is provided with a second cutting plane, the position of the second cutting plane corresponding to the position of the first cutting plane.

10. An electronic device, characterized in that, It includes a main body and a camera module as described in any one of claims 1-9, wherein the camera module is disposed on the main body.

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