Camera module and electronic device

Abstract

The application discloses a camera module and an electronic device, and belongs to the technical field of electronic devices. The camera module comprises a zoom assembly, a lens and a photosensitive chip which are stacked, the zoom assembly comprises a light driving mechanism and at least one zoom lens, the zoom lens is arranged on the side of the lens away from the photosensitive chip, wherein the light driving mechanism is arranged at one end of the zoom lens and is connected with at least one zoom lens respectively, and the light driving mechanism is used for driving at least one zoom lens to move, so as to change the direction of light entering the lens.

Description

Technical Field

[0001] This application belongs to the field of electronic devices, specifically relating to a camera module and an electronic device. Background Technology

[0002] In recent years, with the rapid development of electronic devices, users have increasingly higher requirements for them. Most existing electronic devices now have camera functions.

[0003] Existing camera modules typically include a glass cover, a lens, a motor, and a photosensitive chip. The lens is positioned between the glass cover and the photosensitive chip. The motor can be connected to the lens to drive it and adjust the focal length of the camera module. The lens can collect light through the glass cover and focus the collected light onto the photosensitive chip for photoelectric conversion into an image.

[0004] However, in environments with strong lasers, the laser energy tends to concentrate on the surface of the image sensor due to the focusing effect of the lens and the automatic focusing effect of the motor. This can generate high temperatures and damage the image sensor, resulting in images with dead pixels or streaks, thus reducing the image quality of the camera module. Summary of the Invention

[0005] The purpose of this application is to provide a camera module and electronic device that can prevent the laser from converging on the surface of the photosensitive chip and generating high temperatures that could damage the photosensitive chip in environments with strong lasers, thereby avoiding the appearance of dead pixels or stripes in the captured images and improving the shooting quality of the camera module.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] In a first aspect, embodiments of this application provide a camera module, including: a zoom component, a lens, and a photosensitive chip stacked together, wherein the zoom component includes a light driving mechanism and at least one zoom lens, wherein...

[0008] The light driving mechanism is disposed at one end of the zoom lens and is connected to at least one of the zoom lenses respectively. The light driving mechanism is used to drive at least one of the zoom lenses to move, so as to change the direction of light entering the lens.

[0009] Secondly, embodiments of this application provide an electronic device including the aforementioned camera module.

[0010] In this embodiment, the light driving mechanism is connected to at least one zoom lens, and the light driving mechanism can be used to drive at least one of the zoom lenses to move. In this way, in an environment with strong laser, the light driving mechanism can drive at least one of the zoom lenses to move, thereby changing the direction of the laser entering the lens. This causes the laser to diffuse at the point where it is focused on the photosensitive chip after passing through the lens, which can prevent the laser from converging on the surface of the photosensitive chip, thereby avoiding the generation of high temperature that could damage the photosensitive chip and improving the shooting quality of the camera module. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a zoom component according to an embodiment of this application;

[0012] Figure 2 This is a schematic diagram of another zoom component according to an embodiment of this application;

[0013] Figure 3A This is a schematic diagram of the structure of an optical driving mechanism according to an embodiment of this application;

[0014] Figure 3B This is a schematic diagram of another optical driving mechanism according to an embodiment of this application;

[0015] Figure 4A This is a schematic diagram of the structure of a zoom lens according to an embodiment of this application;

[0016] Figure 4B This is a schematic diagram of another zoom lens structure according to an embodiment of this application;

[0017] Figure 4C This is a schematic diagram of the structure of another zoom lens according to an embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the structure of a camera module according to an embodiment of this application;

[0019] Figure 6 This is a schematic diagram of another camera module structure according to an embodiment of this application;

[0020] Figure 7 This is a schematic diagram of the structure of another camera module according to an embodiment of this application;

[0021] Figure 8 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100-Zoom assembly, 1-Light drive mechanism, 11-Light absorption layer, 12-Thermal expansion layer, 2-Transmission mechanism, 21-U-tube, 22-First piston, 23-Fluid, 24-First connector, 3-Zoom lens, 31-Planar side, 32-Curved side, 321-First curved portion, 322-Second curved portion, 4-Connecting assembly, 41-Straight tube, 42-Second piston, 43-Second connector, 5-Fixing mechanism, 61-Glass cover plate, 62-Lens, 63-Photosensitive chip, 64-Filter assembly, 65-Circuit board, 66-Motor, 71-Housing, 72-Light-transmitting area. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] The following is in conjunction with the appendix Figure 1-8 The camera module and electronic device provided in this application will be described in detail through specific embodiments and application scenarios.

[0027] It should be noted that the camera module described in this application embodiment can be applied to electronic devices such as mobile phones, computers, or cameras. This application embodiment only uses a mobile phone as an example for explanation; other situations can be referred to the settings. Specifically, users carry mobile phones during daily travel, and can use their phones to take photos, record and share their lives. When users enter scenes such as music festivals, light shows, and concerts, these scenes are usually accompanied by strong lasers or high-energy beams. Common lasers are mainly visible light such as red, green, and blue light, which have the characteristics of high brightness, good monochromaticity, and concentrated beams. Since the camera module described in this application embodiment can adjust the direction of laser emission to the lens 62, it can protect the photosensitive chip 63 and prevent the photosensitive chip 63 from being burned by the laser.

[0028] Reference Figure 1This application specifically discloses a camera module, which may include: a zoom component 100, a lens 62, and a photosensitive chip 63 stacked together. The zoom component 100 may include a light driving mechanism 1 and at least one zoom lens 3. The zoom lens 3 may be disposed on the side of the lens 62 away from the photosensitive chip 63. The light driving mechanism 1 may be disposed at one end of the zoom lens 3 and connected to at least one zoom lens 3. The light driving mechanism 1 may be used to drive at least one zoom lens 3 to move, thereby changing the direction of light entering the lens 62.

[0029] In this embodiment, the light driving mechanism 1 is connected to at least one zoom lens 3, and the light driving mechanism 1 can be used to drive at least one zoom lens 3 to move. In this way, in an environment with strong laser, the light driving mechanism 1 can drive at least one zoom lens 3 to move, thereby changing the direction of the laser entering the lens 62. This causes the laser to diffuse after passing through the lens 62 and focusing on the photosensitive chip 63, thus avoiding the laser from converging on the surface of the photosensitive chip 63, thereby avoiding the generation of high temperature that could damage the photosensitive chip 63 and improving the shooting quality of the camera module.

[0030] Specifically, lens 62 can refract light, causing it to converge onto photosensitive chip 63. Photosensitive chip 63 can be an image sensor. After lens 62 converges light onto photosensitive chip 63, photosensitive chip 63 can convert the light signal into an electrical signal, which, after analog-to-digital conversion and effect adjustment, yields the final captured image. Furthermore, photosensitive chip 63 can include CCD (Charge Coupled Device) and CMOS (Complementary Metal-Oxide Semiconductor).

[0031] Specifically, the zoom component 100 can directly sense light and absorb light to generate driving force. Compared with magnetoelectric devices, it does not require light detection and motor drive structures, saving space and reducing power consumption. Moreover, in strong laser environments, for example, when the light intensity is greater than the preset threshold, the zoom component 100 can perform zooming. In weak laser environments, for example, when the light intensity is less than or equal to the preset threshold, the zoom component 100 may not function, giving it strong environmental adaptability. The preset threshold can be set according to actual conditions, and this application embodiment does not specifically limit it.

[0032] The light-driving mechanism 1 described in this embodiment can deform and generate driving force upon absorbing light. The light-driving mechanism 1 is connected to at least one zoom lens 3 and can be used to provide driving force to the zoom lens 3. The light-driving mechanism 1 can drive one zoom lens 3 to move, or it can drive at least two zoom lenses 3 to move simultaneously, depending on actual needs. This embodiment does not specifically limit this. Specifically, the speed of the light-driving mechanism 1 is affected by factors such as its material, size, and temperature rise.

[0033] Specifically, when the light-driving mechanism 1 absorbs light, it can undergo bending deformation, contraction deformation, or extension deformation. For example, the light-driving mechanism 1 can be a photo-deformation layer made of a photo-deformation material, or it can be a combination of two layers with different thermal expansion coefficients: a light-absorbing layer and a thermal expansion layer. This application does not specifically limit this aspect.

[0034] Furthermore, the light driving mechanism 1 can include a working state and a non-working state. In the non-working state, the light driving mechanism 1 does not function. When the light intensity exceeds a preset threshold, the light driving mechanism 1 can absorb light and switch to the working state. In this working state, the light driving mechanism 1 can drive the zoom lens 3 to move, thereby changing the direction of light entering the lens 62. The preset threshold can be set according to actual needs, and this embodiment does not specifically limit it.

[0035] The zoom lens 3 in this embodiment can be an optical element, such as a concave lens, a convex lens, or a combination lens formed by concave and convex lenses, or a lens element, etc., and is a component of the zoom lens. Specifically, the number of zoom lenses 3 can be one, two, three, or four, etc., and can be set according to actual needs. This embodiment does not specifically limit this.

[0036] Specifically, taking the number of zoom lenses 3 as one as an example: the zoom lens 3 can be a convex lens or a concave lens. When the light intensity does not exceed the preset threshold, the light driving mechanism 1 may not deform, and the zoom lens 3 may be hidden inside the camera module; when the light intensity exceeds the preset threshold, the light driving mechanism 1 may extend and deform to drive the zoom lens 3 to move to a position opposite to the lens 62, so that the zoom lens 3 can change the direction of light entering the lens 62.

[0037] Specifically, taking two zoom lenses 3 as an example: the two zoom lenses 3 may include a concave lens and a convex lens respectively. When the light intensity is less than or equal to a preset threshold, the two zoom lenses 3 can be arranged opposite each other, and the zoom lenses 3 can be arranged opposite to the lens 62; when the light intensity is greater than the preset threshold, the light driving mechanism 1 can drive at least one zoom lens 3 to move, so that the two zoom lenses 3 are misaligned.

[0038] Optionally, the number of zoom lenses 3 can be two; the light driving mechanism 1 can include a working state and a non-working state. In the non-working state, the two zoom lenses 3 can be arranged opposite each other. In the working state, the light driving mechanism 1 can drive at least one zoom lens 3 to move so that the two zoom lenses 3 are misaligned.

[0039] In this embodiment, in the non-working state, the two zoom lenses 3 are arranged opposite each other. This ensures that the emission direction of light after passing through the two zoom lenses 3 remains unchanged, allowing the zoom lenses 3 to maintain the direction of light entering the lens 62. This facilitates the focusing of light onto the photosensitive chip 63 after passing through the lens 62, enabling the camera module to be used for normal shooting. In the working state, the two zoom lenses 3 can be staggered. This changes the emission direction of light after passing through the two zoom lenses 3, allowing the zoom lenses 3 to alter the direction of light entering the lens 62. The light, after passing through the lens 62, can diffuse onto the photosensitive chip 63, preventing light focusing and burn-in on the photosensitive chip 63.

[0040] Specifically, the light driving mechanism 1 can drive only one zoom lens 3 to move while the other zoom lens 3 remains stationary, thereby misaligning the two stacked zoom lenses 3 and changing the direction of light entering the lens 62. Alternatively, the light driving mechanism 1 can drive both zoom lenses 3 to move simultaneously in opposite directions, also misaligning them and changing the direction of light entering the lens 62. The specific configuration can be determined according to actual needs, and this embodiment of the invention does not impose specific limitations on this.

[0041] Furthermore, taking the lower zoom lens 3 disposed between the upper zoom lens 3 and the lens 62 as an example, the lower zoom lens 3 is fixed, and the light driving mechanism 1 drives the upper zoom lens 3 to move in a preset direction, which is perpendicular to the stacking direction of the lens 62 and the photosensitive chip 63.

[0042] Alternatively, the lower zoom lens 3 is fixed, and the light driving mechanism 1 drives one end of the upper zoom lens 3 to move away from the lower zoom lens 3, so that the included angle between the two zoom lenses 3 changes from 0 degrees to an acute angle.

[0043] Alternatively, the light driving mechanism 1 drives the upper zoom lens 3 and the lower zoom lens 3 to move along a first direction and the opposite direction of the first direction, respectively. The first direction is perpendicular to the stacking direction of the lens 62 and the photosensitive chip 63.

[0044] Specifically, the two zoom lenses 3 are misaligned in the following ways: 1. Parts of the two zoom lenses 3 are opposite each other along their length; 2. Parts of the two zoom lenses 3 are opposite each other along their width; 3. The included angle between the two zoom lenses 3 is an acute angle.

[0045] Specifically, when the light intensity exceeds the preset threshold, the light driving mechanism 1 can switch to the working state; when the light intensity is less than or equal to the preset threshold, the light driving mechanism 1 can switch to the non-working state.

[0046] Specifically, the light-driven mechanism 1 can directly drive the zoom lens 3 to move, or it can indirectly drive the zoom lens 3 to move through a transmission component. Further, the transmission component may include a U-shaped tube storing fluid and a piston. For example, two pistons may be disposed at both ends of the U-shaped tube to block the fluid inside. The two pistons may be connected to two zoom lenses 3 respectively, allowing the light-driven mechanism 1 to simultaneously drive the two zoom lenses 2 to move. Alternatively, the transmission mechanism 2 may include a straight tube and a piston. The piston may be disposed inside the straight tube, with one end connected to one of the zoom lenses 3 via a connector, and the other end connected to the light-driven mechanism 1 via a connector, allowing the light-driven mechanism 1 to drive one zoom lens 3 to move. Alternatively, the transmission mechanism 2 may include a U-shaped tube, a straight tube, and a piston, as described above. Or, the transmission mechanism 2 may include a gear and a chain. For example, the chain may mesh with the gear, and both ends of the chain may be connected to two zoom lenses 3 respectively, allowing the light-driven mechanism 1 to simultaneously drive the two zoom lenses 3 to move.

[0047] Specifically, two zoom lenses 3 are stacked to form a zoom lens. Relative movement between the two zoom lenses 3 enables zooming, changing the laser focusing position and reducing heat concentration. Specifically, in the non-operating state, the zoom lens can be positioned opposite the lens 62, and the zoom lens can be located on the side of the lens 62 furthest from the photosensitive chip 63, allowing light to pass sequentially through the zoom lens and the lens 62 before focusing onto the photosensitive chip 63.

[0048] like Figure 1 As shown, in a weak laser environment, the light-driven mechanism 1 absorbs less light and does not deform, thus placing the light-driven mechanism 1 in the non-working state. The zoom lens 3 can then be in its initial position, with the two zoom lenses 3 positioned opposite each other. Figure 4AAs shown, the direction of light emission through zoom lens 3 remains unchanged, and zoom lens 3 does not change the direction in which light enters lens 62. Figure 5 and 7 As shown, light passing through the zoom lens 3 is transmitted to the lens 62, and the light passing through the lens 62 can be focused onto the photosensitive chip 63 to realize the shooting function of the camera module.

[0049] like Figure 2 As shown, in a strong laser environment, when the light intensity reaches a preset threshold, the light driving mechanism 1 is in the working state. Irradiated by the laser, the light driving mechanism 1 can bend and deform, pulling one of the zoom lenses 3 to the right. One end of the transmission mechanism 2 moves to the right along with one of the zoom lenses 3, while the other end pulls the other zoom lens 3 to the left. Thus, the relative positions of the two zoom lenses 3 change, as shown... Figure 4B As shown, the laser's emission direction changes after passing through the zoom lens 3, thus altering the direction in which the light enters the lens 62. Figure 6 As shown, the laser transmitted through the zoom lens 3 is transmitted to the lens 62 of the camera module. The laser emitted through the lens 62 falls onto the photosensitive chip 63, which changes the convergence position of the laser and can prevent the energy on the surface of the photosensitive chip 63 from being too concentrated and causing burn-in failure.

[0050] Optionally, the zoom assembly 100 may further include a transmission mechanism 2, which may be disposed at the end of the zoom lens 3 away from the light driving mechanism 1. The two ends of the transmission mechanism 2 may be respectively connected to the ends of the two zoom lenses 3 near their respective locations. In the working state, the light driving mechanism 1 may drive the two zoom lenses 3 to move in a first direction and the opposite direction of the first direction through the transmission mechanism 2. The first direction may be perpendicular to the stacking direction of the lens 62 and the photosensitive chip 3.

[0051] In this embodiment, the transmission mechanism 2 is connected to two zoom lenses 3 respectively, and the transmission mechanism 2 is located at the same end of the two zoom lenses 3, so that the transmission mechanism 2 can be connected to the same end of the two zoom lenses 3 respectively. This makes it easier for the transmission mechanism 2 to change the direction of movement and realize the misalignment between the two zoom lenses 3.

[0052] Specifically, in the operating state, the light driving mechanism 1 can drive a zoom lens 3 to move in the first direction, so that the zoom lens 3 drives the transmission mechanism 2 to move, and the transmission mechanism 2 can further drive another zoom lens 3 to move in the opposite direction of the first direction.

[0053] Optionally, one side of the zoom lens 3 can be a flat side 31, and the other side can be an arc-shaped side 32; the arc-shaped side 32 can include a first arc-shaped portion 321 and a second arc-shaped portion 322, the first arc-shaped portion 321 can be recessed away from the flat side 31, and the second arc-shaped portion 322 can be recessed toward the flat side 31; wherein, the flat sides 31 of the two zoom lenses 3 can be arranged opposite to each other.

[0054] In this embodiment, since the planar sides 31 of the two zoom lenses 3 are arranged opposite each other, in the non-working state, such as Figure 4A As shown, the first arc-shaped portion 321 of one zoom lens 3 can face the second arc-shaped portion 322 of another zoom lens 3, and the second arc-shaped portion 322 of one zoom lens 3 can face the first arc-shaped portion 321 of another zoom lens 3. Since the first arc-shaped portion 321 is recessed away from the plane side 31, and the second arc-shaped portion 322 is recessed towards the plane side 31, the zoom lens 3 does not change the direction of light emission under the combined action of the two zoom lenses 3. In the described operating state, as... Figure 4B As shown, the first arcuate portion 321 of one zoom lens 3 can be opposite to the first arcuate portion 321 of the other zoom lens 3, or, as... Figure 4C As shown, the second arcuate portion 322 of one zoom lens 3 can be opposite to the second arcuate portion 322 of the other zoom lens 3, so that the zoom lens 3 can change the emission direction of the laser.

[0055] Specifically, the first arc-shaped portion 321 and the second arc-shaped portion 322 have opposite concave directions and the same degree of curvature.

[0056] Specifically, the planar sides 31 of the two zoom lenses 3 can be arranged opposite each other, or the curved sides 32 of the two zoom lenses 3 can be arranged opposite each other. The specific arrangement can be made according to actual needs, and this application embodiment does not make specific limitations on this.

[0057] Optionally, the light driving mechanism 1 may include a light absorption layer 11 and a thermal expansion layer 12 stacked together; the coefficient of thermal expansion of the light absorption layer 11 may be less than the coefficient of thermal expansion of the thermal expansion layer 12.

[0058] In this embodiment, the light absorption layer 11 absorbs light and its temperature rises. The heat from the light absorption layer 11 can be transferred to the thermal expansion layer 12. Since the thermal expansion coefficient of the light absorption layer 11 is less than that of the thermal expansion layer 12, the light absorption layer 11 and the thermal expansion layer 12 undergo asymmetrical volume expansion, which in turn generates a driving force.

[0059] Specifically, the light absorption layer 11 and the thermal expansion layer 12 are stacked, as follows: Figure 2-3B As shown, the light absorption layer 11 can be located on top of the thermal expansion layer 12, which facilitates the absorption of light by the light absorption layer 11.

[0060] Furthermore, such as Figure 3B As shown, when the light intensity reaches a preset threshold, the light absorption layer 11 absorbs light and its temperature rises, causing the light absorption layer 11 and the thermal expansion layer 12 to undergo asymmetrical volume expansion, which in turn generates a driving force, allowing the light driving mechanism 1 to switch to the aforementioned working state; as Figure 3A As shown, when the light intensity is less than a preset threshold, the light absorption layer 11 and the thermal expansion layer 12 can return to their initial state, allowing the light driving mechanism 1 to switch to the non-working state, thus enabling the light driving mechanism 1 to have cyclic stability.

[0061] Optionally, the material of the light absorption layer 11 may include any one of carbon black, carbon nanotubes, graphite and two-dimensional inorganic compounds; the material of the thermal expansion layer 12 may include any one of polydimethylsiloxane and polyimide.

[0062] In this embodiment, the light absorption layer 11 is made of any one of carbon black, carbon nanotubes, graphite, and two-dimensional inorganic compounds, which can enhance the strong absorption of laser light by the light absorption layer 11. The thermal expansion layer 12 is made of any one of polydimethylsiloxane and polyimide, which can enhance the thermal expansion effect of the thermal expansion layer 12.

[0063] Specifically, the light absorption layer 11 can be made of carbon-based materials such as carbon black, carbon nanotubes, graphite, or two-dimensional inorganic compounds, which have a strong absorption effect on common red, green, and blue lasers.

[0064] Optionally, the light-driven mechanism 1 may include a photodeformation layer, and the material of the photodeformation layer may include any one of photoextensive ferroelectric ceramics and photodeformation polymers.

[0065] In this embodiment, the material of the photodeformation layer includes any one of photostrictive ferroelectric ceramics and photodeformation polymers, which facilitates the deformation of the photodeformation layer after absorbing light and generating driving force.

[0066] Specifically, the material of the photodeformation layer can be a photoextensive ferroelectric ceramic, such as lead lanthanum zirconate titanate ceramic (PLZT); the material of the photodeformation layer can also be a photodeformation polymer, such as a photodeformation liquid crystal elastomer.

[0067] In another optional embodiment of this application, the transmission mechanism 2 may include a U-shaped tube 21 storing fluid 23 and two first pistons 22 movably connected inside the U-shaped tube 21; the two first pistons 22 may be respectively disposed at both ends of the U-shaped tube 21 for sealing the fluid 23 inside the U-shaped tube 21; the two first pistons 22 may be respectively connected to two zoom lenses 3.

[0068] In this embodiment, two first pistons 22 are respectively disposed at both ends of the U-shaped tube 21, facilitating the sealing of the fluid 23 within the U-shaped tube 21 using the first pistons 22. Since both the first pistons 22 and the fluid 23 can move within the U-shaped tube 21, connecting two second pistons 42 to the two zoom lenses 3 respectively improves the transmission effect and convenience of the transmission mechanism 2, and allows for misalignment between the two zoom lenses 3.

[0069] Specifically, the first piston 22 is connected to the fluid 23 and the zoom lens 3 respectively, and both the first piston 22 and the fluid 23 are used to transmit driving force.

[0070] Specifically, the fluid 23 can be a gas or a liquid. This application embodiment does not specifically limit this, and it can be set according to actual needs.

[0071] Specifically, such as Figure 2 As shown, when the light-driven mechanism 1 experiences intense laser irradiation, it can bend and contract. After the light-driven mechanism 1 drives one of the zoom lenses 3 to move, the two first pistons 22 and the fluid 23 can transmit power and pull the other zoom lens 3 to move, thus changing the focusing position of the laser. Figure 1 As shown, when the light drive mechanism 1 senses a weak laser intensity, the light drive mechanism 1 can extend and return to its original position, and drive one of the zoom lenses 3 to return to its initial position. The two first pistons 22 and the fluid 23 can be transmitted and pull the other zoom lens 3 to return to its initial position.

[0072] Optionally, the transmission mechanism 2 may also include a first connector 24, which may be disposed between the first piston 22 and the zoom lens 3, and the two ends of the first connector 24 may be connected to the first piston 22 and the zoom lens 3 respectively.

[0073] In this embodiment, the first connector 24 is used to connect the first piston 22 and the zoom lens 3, which can improve the convenience of setting up the U-tube 21 and the zoom lens 3.

[0074] Specifically, at least a portion of the first connector 24 may be embedded within the U-shaped tube 21.

[0075] Specifically, the first connector 24 is connected to the first piston 22 and the zoom lens 3 respectively, and is used to transmit driving force. One end of the connector can be fixed to the first piston 22 by means of bonding, threaded connection or other means, and the other end of the connector can be fixed to the zoom lens 3 by means of bonding, threaded connection or other means.

[0076] Optionally, a connecting component 4 may be provided at one end of the zoom lens 3 near the light driving mechanism 1. The zoom lens 3 can be connected to the light driving mechanism 1 through the connecting component 4. The connecting component 4 may include a straight tube 41, a second piston 42, and a second connector 43. The second piston 42 may be disposed inside the straight tube 41 and may be slidably connected to the straight tube 41. At least a portion of the second connector 43 is embedded inside the straight tube 41, and both ends of the second connector 43 are respectively connected to the second piston 42 and the zoom lens 3.

[0077] In this embodiment, using the second connector 43 to connect the zoom lens 3 and the second piston 42 improves the ease of setting up the straight tube 41 and the zoom lens 3. Furthermore, the second piston 42 can move within the straight tube 41, improving the ease of movement of the zoom lens 3.

[0078] For example, when the camera module is applied to a mobile phone, the straight tube 41 can be fixed inside the mobile phone casing.

[0079] Specifically, the zoom lens 3 can be connected to the light drive mechanism 1 via the connecting component 4, such as... Figure 1 As shown in Figure 2, at least a portion of the light-driven mechanism 1 can be embedded in the straight tube 41 and connected to the end of the second piston 42 away from the second connector 43.

[0080] Optionally, the transmission mechanism 2 includes a rotating shaft, a gear, and a rack, with the gear sleeved outside the rotating shaft; the two ends of the rack are respectively connected to two zoom lenses 3, and the rack meshes with the gear.

[0081] In this embodiment, the two ends of the rack are respectively connected to two zoom lenses 3, and the rack can also mesh with a gear, which can improve the transmission effect of the transmission mechanism 2 and facilitate the misalignment between the two zoom lenses 3.

[0082] Specifically, one end of the rack can be connected to one of the zoom lenses 3, and the other end can be connected to another zoom lens 3 around the rotating shaft.

[0083] Optionally, the camera module may further include a camera support; the end of the light driving mechanism 1 away from the zoom lens 3 may be fixedly connected to the camera support; or, the end of the light driving mechanism 1 away from the zoom lens may be fixedly connected to the camera support through a fixing mechanism 5.

[0084] In this embodiment, the end of the light driving mechanism 1 that is away from the zoom lens 3 can be fixedly connected to the camera support. In this way, when the light driving mechanism 1 is deformed, it is convenient for the light driving mechanism 1 to drive the zoom lens 3 to move.

[0085] Specifically, the end of the light driving mechanism 1 away from the zoom lens 3 can be directly fixed to the camera bracket; or the end of the light driving mechanism 1 away from the zoom lens 3 can be fixed by the fixing mechanism 5, which can be a fixing plate or a fixing rod, etc. This application embodiment does not specifically limit this.

[0086] Specifically, the camera support can be the basic structure of the camera module, and can be used to arrange and install the zoom component 100, lens 62, photosensitive chip 63, etc.

[0087] Specifically, the camera module may also include a glass cover plate 61, which can be used to protect the lens 62 and to transmit light.

[0088] Specifically, the camera module may also include a motor 66, which can be connected to the lens 62 to drive the lens 62 to move and achieve focusing.

[0089] Specifically, the camera module may further include a light filter assembly 64, which can be disposed between the photosensitive chip 63 and the lens 62 for filtering light. Further, the light filter assembly 64 may include a stacked support carrier and a filter, which can be used to filter infrared light, green light, or blue light while ensuring visible light passes through. For example, the filter can be an infrared filter, a visible light filter, etc.

[0090] Specifically, the camera module may further include a circuit board 65, which can serve as a carrier for the electrical wiring of the camera module. The circuit board 65 may be a printed circuit board or a flexible circuit board, etc., and can be set according to actual needs. This application embodiment does not make specific limitations in this regard.

[0091] Specifically, the camera support may include a base, on which components such as the photosensitive chip 63, lens 62, and motor 66 of the camera module may be mounted. The base may be used to support components such as the photosensitive chip 63, lens 62, and motor 66 of the camera module.

[0092] The camera module described in this application embodiment has at least the following advantages:

[0093] In this embodiment, the light driving mechanism is connected to at least one zoom lens, and the light driving mechanism can be used to drive at least one of the zoom lenses to move. In this way, in an environment with strong laser, the light driving mechanism can drive at least one of the zoom lenses to move, thereby changing the direction of the laser entering the lens. This causes the laser to diffuse at the point where it is focused on the photosensitive chip after passing through the lens, which can prevent the laser from converging on the surface of the photosensitive chip, thereby avoiding the generation of high temperature that could damage the photosensitive chip and improving the shooting quality of the camera module.

[0094] Secondly, this application also discloses an electronic device that may include the aforementioned camera module.

[0095] The electronic devices described in the embodiments of this application include, but are not limited to, mobile phones, computers, tablets, digital cameras, etc.

[0096] Specifically, the electronic device includes a camera module and a device body. The camera module may include a zoom component 100. The end of the light driving mechanism 1 of the zoom component 100 away from the zoom lens 3 may be fixedly connected to the device body. In this way, after the light driving mechanism 1 absorbs light and deforms, the end of the light driving mechanism 1 connected to the zoom lens 3 may generate a driving force to drive the zoom lens 3 to move.

[0097] Specifically, such as Figure 8 As shown, the device body includes a housing 71, and a through hole is provided on the housing 71 at a position corresponding to the camera module. The glass cover plate 61 of the camera module is embedded in the through hole.

[0098] Furthermore, a light-transmitting area 72 is provided at the position corresponding to the light-driving mechanism 1 on the housing 71. The light-transmitting area 72 is used to transmit laser light so that the laser light can pass through the light-transmitting area 72 and irradiate the light-driving mechanism 1.

[0099] Specifically, the light-transmitting area 72 can be a glass plate or a transparent plastic plate, etc., and can be set according to actual needs. This application embodiment does not make specific limitations in this regard.

[0100] Specifically, taking a mobile phone as an example, when the back of the phone is exposed to strong laser light, the light-driven mechanism 1 can absorb the light and bend and contract, then drive one of the zoom lenses 3 to move in the first direction. Under the transmission action of the transmission mechanism 2, the other zoom lens 3 can move in the opposite direction to the first direction, so that the two zoom lenses 3 can achieve a zoom effect, avoiding the laser from focusing on the photosensitive chip 63 of the camera module, thus protecting the photosensitive chip 63. When the laser intensity is weak, the light-driven mechanism 1 can extend and return to its original position, pushing the two zoom lenses 3 back to their initial position. The two zoom lenses 3 are set opposite each other, which can effectively ensure that the light is focused on the photosensitive chip 63, ensuring that the camera module can take pictures normally.

[0101] The electronic device described in this application has at least the following advantages:

[0102] In this embodiment, the light driving mechanism is connected to at least one zoom lens, and the light driving mechanism can be used to drive at least one of the zoom lenses to move. In this way, in an environment with strong laser, the light driving mechanism can drive at least one of the zoom lenses to move, thereby changing the direction of the laser entering the lens. This causes the laser to diffuse at the point where it is focused on the photosensitive chip after passing through the lens, which can prevent the laser from converging on the surface of the photosensitive chip, thereby avoiding the generation of high temperature that could damage the photosensitive chip and improving the shooting quality of the camera module.

[0103] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0104] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A camera module, characterized in that, The camera module comprises a zoom assembly, a lens and a photosensitive chip arranged in a stack, the zoom assembly comprising a light driving mechanism and at least one zoom lens arranged on a side of the lens away from the photosensitive chip, wherein the light driving mechanism is arranged at one end of the zoom lens and connected with the at least one zoom lens respectively, the light driving mechanism being configured to drive the at least one zoom lens to move so as to change the direction of light entering the lens; the end of the zoom lens close to the light driving mechanism is further provided with a connecting assembly, the zoom lens being connected with the light driving mechanism through the connecting assembly; the connecting assembly comprises a flat tube, a second piston and a second connecting piece; the second piston is arranged in the flat tube and is connected with the flat tube in a sliding manner; at least a part of the second connecting piece is embedded in the flat tube, and two ends of the second connecting piece are connected with the second piston and the zoom lens respectively; the number of the zoom lenses is two, and the light driving mechanism comprises an operating state and a non-operating state, in the non-operating state, the two zoom lenses are arranged oppositely, and in the operating state, the light driving mechanism drives at least one zoom lens to move so as to cause the two zoom lenses to be misaligned, wherein when the light intensity is greater than a preset threshold, the light driving mechanism is in the operating state; the light driving mechanism comprises a light absorption layer and a thermal expansion layer arranged in a stack, and the thermal expansion coefficient of the light absorption layer is less than the thermal expansion coefficient of the thermal expansion layer. The zoom assembly further comprises a transmission mechanism, the transmission mechanism being arranged at an end of the zoom lens away from the light driving mechanism, and two ends of the transmission mechanism being connected with the ends of the two zoom lenses close to the ends respectively; 2. The camera module of claim 1, wherein, in the operating state, the light driving mechanism drives the two zoom lenses to move towards a first direction and a direction opposite to the first direction respectively through the transmission mechanism, the first direction being perpendicular to the stacking direction of the lens and the photosensitive chip. one side of the zoom lens is a flat side, and the other side is an arc-shaped side; 3. The camera module of claim 1, wherein, the arc-shaped side comprises a first arc-shaped part and a second arc-shaped part, the first arc-shaped part being recessed away from the flat side, and the second arc-shaped part being recessed towards the flat side; wherein the flat sides of the two zoom lenses can be arranged oppositely. the transmission mechanism comprises a U-shaped tube storing a fluid and two first pistons movably connected in the U-shaped tube; 4. The camera module of claim 2, wherein, the two first pistons are arranged at two ends of the U-shaped tube respectively, and are configured to seal the fluid in the U-shaped tube; the two first pistons are connected with the two zoom lenses respectively. the transmission mechanism further comprises a first connecting piece arranged between the first pistons and the zoom lenses, and two ends of the first connecting piece are connected with the first pistons and the zoom lenses respectively.

5. The camera module of claim 4, wherein, the transmission mechanism comprises a rotating shaft, a gear and a rack, the gear being sleeved outside the rotating shaft; 6. The camera module of claim 2, wherein, two ends of the rack are connected with the two zoom lenses respectively, and the rack is engaged with the gear. the camera module further comprises a camera support.

7. The camera module of claim 1, wherein, ​ The light driving mechanism is fixedly connected to the camera holder at an end away from the zoom lens. Alternatively, the light driving mechanism is fixedly connected to the camera holder at an end away from the zoom lens through a fixing mechanism.

8. An electronic device, comprising: The camera module comprises the camera module as claimed in any one of claims 1-7.

Images