Embedded multi-light source light adjusting module for camera module

Abstract

The utility model relates to camera module technical field discloses a kind of embedded multi-light source dimming module for camera module, including mounting bracket, the top of mounting bracket is fixedly connected with fixed cylinder, the front side of fixed cylinder is provided with light mechanism, the inner wall of fixed cylinder is provided with dimming mechanism, the outer wall of fixed cylinder is provided with damping mechanism, and the damping mechanism is for damping;The dimming mechanism includes stepper motor, the bottom of stepper motor is fixedly connected with the inner wall bottom of fixed cylinder, and the output of stepper motor is fixedly connected with bevel gear one. In the utility model, open stepper motor, drive bevel gear one rotation, since bevel gear one and bevel gear two are engaged connection state, bevel gear two in turn drive double-threaded rod rotation, baffle will be far from light mechanism or close to light mechanism, to realize the function of adjusting brightness according to demand, enhanced practicality.

Description

Technical Field

[0001] This utility model relates to the field of camera module technology, and in particular to an embedded multi-light source dimming module for camera modules. Background Technology

[0002] A camera module is a highly integrated precision optical electronic device that cleverly integrates key components such as a camera, lens, image sensor, and digital signal processor. Like the human eye, it gives various devices the ability to see. In today's digital and intelligent era, camera modules are ubiquitous, widely used in mobile phones, computers, security monitoring, smart homes, automotive electronics, and industrial sensing. In smartphones, camera modules have become an indispensable core component. The core component of a camera module is the image sensor, which, like the human retina, undertakes the crucial task of converting light signals into electrical signals, thereby capturing images. When light enters the camera module through the lens, it first passes through a light filter and an infrared filter to filter out unwanted light, allowing only specific wavelengths of light to pass through, ensuring color reproduction and image clarity. Then, the light is focused onto the image sensor, which uses the photoelectric effect to convert the energy carried by photons into electrons, generating electrical signals. To ensure that camera modules can capture clear, high-quality images in various environments, embedded multi-light source dimming modules have emerged. These are key technology components specifically designed for camera modules, capable of precisely controlling and adjusting multiple light sources around the camera according to different shooting scenarios and needs, providing the camera with just the right lighting conditions. Early camera modules often used plug-in type light-emitting elements to provide auxiliary illumination. These plug-in elements typically have pins, and because the bending angle and force of the pins are difficult to control precisely, different light-emitting elements may exhibit angular deviations after installation, resulting in inconsistent illumination directions and affecting image clarity and accuracy. To address this drawback, existing technologies adjust the center distance between the light source and the camera, allowing light to more accurately illuminate the shooting area and reducing light divergence and unevenness. They employ 2D and 4D micro-adjustment frames with micro-servo systems. These frames can precisely control the position and angle of the light source, achieving fine-tuning of the light illumination direction. However, existing technologies are complex in structure and cannot precisely adjust light intensity, resulting in low practicality. Summary of the Invention

[0003] To overcome the above shortcomings, this utility model provides an embedded multi-light source dimming module for camera modules, which aims to improve the problems of existing technologies having complex structures, being unable to accurately adjust light intensity, and having low practicality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an embedded multi-source dimming module for a camera module, including a mounting frame, a fixed cylinder fixedly connected to the top of the mounting frame, a light-emitting mechanism provided on the front side of the fixed cylinder, a dimming mechanism provided on the inner wall of the fixed cylinder, and a vibration damping mechanism provided on the outer wall of the fixed cylinder, the vibration damping mechanism being used for vibration damping; The dimming mechanism includes a stepper motor, the bottom of which is fixedly connected to the bottom of the inner wall of the fixed cylinder. A helical gear one is fixedly connected to the output end of the stepper motor. A helical gear two is meshed with the outer wall of the helical gear one. A rotating component is provided on the inner wall of the helical gear two.

[0005] As a further description of the above technical solution: The vibration damping mechanism includes a U-shaped seat. The left side of the U-shaped seat is fixedly connected to the outer wall of the fixed cylinder. A strip plate is rotatably connected to the inner wall of the U-shaped seat. Mounting seats are rotatably connected to the front and rear sides of the outer wall of the strip plate. A sliding component is provided at the bottom of the mounting seat. A telescopic component is provided at the top of the mounting frame. An elastic component is provided on the right side of the mounting seat.

[0006] As a further description of the above technical solution: The rotating assembly includes a double-threaded rod, the outer wall of which is fixedly connected to the inner wall of the second helical gear. A threaded sleeve is threadedly connected to the outer wall of the double-threaded rod, and a connecting assembly is provided on the outer wall of the threaded sleeve.

[0007] As a further description of the above technical solution: The connecting assembly includes a U-shaped plate, the rear side of which is fixedly connected to the front side of the threaded sleeve, a connecting plate rotatably connected to the inner wall of the U-shaped plate, and baffles fixedly connected to adjacent sides of multiple connecting plates.

[0008] As a further description of the above technical solution: The sliding assembly includes a slider, the top of which is fixedly connected to the bottom of the mounting base, and a slide rail is slidably connected to the outer wall of the slider.

[0009] As a further description of the above technical solution: The telescopic assembly includes a support plate, the bottom of which is fixedly connected to the top of the mounting frame. A sliding column one is fixedly connected to the right side of the support plate, and a sliding column two is slidably connected to the inner wall of the sliding column one.

[0010] As a further description of the above technical solution: The elastic component includes a spring post, the left side of which is fixedly connected to the right side of the mounting base, and a fixing plate is fixedly connected to the right side of the spring post.

[0011] As a further description of the above technical solution: The left side of the U-shaped seat is fixedly connected to the outer wall of the fixed cylinder, and the bottom of the mounting seat is fixedly connected to the top of the slider.

[0012] As a further description of the above technical solution: The right side of the sliding column 2 is fixedly connected to the left side of the mounting base.

[0013] As a further description of the above technical solution: The light-emitting mechanism includes a light-emitting beam, the rear side of which is fixedly connected to the front side of the fixed cylinder, and a controller is fixedly connected to the outer wall of the light-emitting beam.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the stepper motor is turned on, driving the first helical gear to rotate. Since the first helical gear and the second helical gear are meshed, the second helical gear drives the double-headed threaded rod to rotate. The first and second helical gears have stable transmission characteristics, which can reduce vibration and noise during the movement. The inner wall of the threaded sleeve is threaded, so the threaded sleeves on both sides can move closer or further away from each other. The corresponding baffle will move away from or closer to the light-emitting mechanism. When the baffle is close to the light-emitting mechanism, the light becomes weaker, and when the baffle is far away from the light-emitting mechanism, the light becomes stronger, thereby realizing the function of adjusting the brightness according to the needs and enhancing practicality.

[0015] 2. In this utility model, when the fixed cylinder vibrates, the vibration is transferred to the U-shaped seat and the strip plate in sequence, which in turn causes the mounting seat to drive the slider to slide along the slide rail, compressing the spring column to absorb the vibration. When the vibration disappears, the second sliding column slowly contracts along the first sliding column to reduce the rebound force of the spring column and enhance its practicality. Attached Figure Description

[0016] Figure 1 This is a front perspective view of a mounting bracket for an embedded multi-light source dimming module for a camera module proposed in this utility model. Figure 2 This is a partial structural exploded view of the fixing cylinder of an embedded multi-light source dimming module for a camera module proposed in this utility model; Figure 3 This is a partial structural diagram of a stepper motor for an embedded multi-light source dimming module for a camera module proposed in this utility model; Figure 4 This is a partial structural diagram of a U-shaped base for an embedded multi-light source dimming module for a camera module proposed in this utility model; Figure 5This is a partial structural diagram of the slider of an embedded multi-light source dimming module for a camera module proposed in this utility model.

[0017] Legend: 1. Mounting bracket; 2. Dimming mechanism; 201. Stepper motor; 202. Helical gear one; 203. Helical gear two; 204. Rotating assembly; 2041. Double-ended threaded rod; 2042. Threaded sleeve; 205. Connecting assembly; 2051. U-shaped plate; 2052. Connecting plate; 2053. Baffle; 3. Vibration damping mechanism; 301. U-shaped seat; 302. Strip plate; 303. Mounting base; 304. Telescopic assembly; 3041. Support plate; 3042. Sliding column one; 3043. Sliding column two; 305. Sliding assembly; 3051. Slider; 3052. Slide rail; 306. Elastic assembly; 3061. Spring column; 3062. Fixing plate; 4. Fixing cylinder; 5. Light display mechanism; 501. Light display beam; 502. Controller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see the appendix Figure 1 - Appendix Figure 3 The present invention provides an embodiment of an embedded multi-source dimming module for a camera module, comprising a mounting bracket 1, a fixed cylinder 4 fixedly connected to the top of the mounting bracket 1, the fixed cylinder 4 being a hollow columnar structure, which serves to accommodate and protect the internal dimming mechanism 2, preventing external dust and impurities from contaminating or damaging the dimming components, and to provide mounting support for the light display mechanism 5, ensuring stable light display direction. The light display mechanism 5 is provided on the front side of the fixed cylinder 4, the dimming mechanism 2 is provided on the inner wall of the fixed cylinder 4, and the vibration damping mechanism 3 is provided on the outer wall of the fixed cylinder 4, the vibration damping mechanism 3 being used for vibration damping. The dimming mechanism 2 includes a stepper motor 201. The bottom of the stepper motor 201 is fixedly connected to the bottom of the inner wall of the fixed cylinder 4. The output end of the stepper motor 201 is fixedly connected to a helical gear 202. The outer wall of the helical gear 202 is meshed with a helical gear 203. The helical gear 203 and the helical gear 202 cooperate to realize power steering and transmission, and at the same time drive the rotating component 204 fixed on the inner wall to rotate synchronously. The inner wall of the helical gear 203 is provided with the rotating component 204. The light display mechanism 5 includes a light display beam 501. The rear side of the light display beam 501 is fixedly connected to the front side of the fixed cylinder 4. The outer wall of the light display beam 501 is fixedly connected to a controller 502. The controller 502 is the control core of the module and can receive the light demand signal of the camera module. The left side of the left U-shaped seat 301 is fixedly connected to the outer wall of the fixed cylinder 4. The bottom of the mounting base 303 is fixedly connected to the top of the slider 3051. The right side of the sliding column 3043 is fixedly connected to the left side of the mounting base 303. Specifically, mounting bracket 1 serves as the basic load-bearing component of the entire dimming module, providing a stable mounting platform for all components, including the fixed cylinder 4 and vibration damping mechanism 3, ensuring that each component remains relatively fixed during operation. A light-emitting mechanism 5 is located on the front of the fixed cylinder 4; this mechanism is the core of the module's light source output, providing the necessary illumination to the camera module. A dimming mechanism 2 is located on the inner wall of the fixed cylinder 4; this mechanism is the core component for adjusting light brightness, controlling the output light intensity by altering the degree of light blocking on the light-emitting mechanism 5 through the linkage of internal components. A vibration damping mechanism 3 is located on the outer wall of the fixed cylinder 4; this mechanism absorbs vibrations generated by the fixed cylinder 4 during operation or under external environmental influences, preventing vibration from being transmitted to the light-emitting mechanism 5 or the dimming mechanism 2, thus avoiding decreased light stability or component damage. A stepper motor 201 serves as the power source for the dimming mechanism 2. The power source can accurately output the rotation angle according to the control signal. The bottom of the stepper motor 201 is fixedly connected to the bottom of the inner wall of the fixed cylinder 4. The output end of the stepper motor 201 is fixedly connected to the helical gear 202. The helical gear 202 is the first gear component for power transmission. It is used to transmit the rotational power of the stepper motor 201 to the helical gear 203. Its helical tooth structure can increase the gear meshing area and improve the transmission smoothness. The inner wall of the helical gear 203 is provided with a rotating component 204. The rotating component 204 is used to convert the rotational motion of the gear into the linear motion of the threaded sleeve 2042, providing a basis for the movement of the baffle 2053. The light-emitting mechanism 5 includes a light-emitting beam 501. The light-emitting beam 501 is a channel component for light output. It integrates a light source element and can stably emit illumination light to ensure that the light is concentrated and the direction is accurate. The rear side of the light-emitting beam 501 is fixedly connected to the front side of the fixed cylinder 4.

[0020] Please see the appendix Figure 3 - Appendix Figure 5The vibration damping mechanism 3 includes a U-shaped seat 301. The left side of the right U-shaped seat 301 is fixedly connected to the outer wall of the fixed cylinder 4. A strip plate 302 is rotatably connected to the inner wall of the U-shaped seat 301. The strip plate 302 serves as an intermediate carrier for vibration transmission. It can convert the vibration transmitted from the U-shaped seat 301 into a horizontal sliding tendency of the mounting base 303 through its own rotation, while buffering part of the vibration energy. The mounting base 303 is rotatably connected to the front and rear sides of the outer wall of the strip plate 302. A sliding component 305 is provided at the bottom of the mounting base 303. 5 provides guidance for the movement of the mounting base 303, ensuring that the mounting base 303 can only slide in a fixed direction to avoid vibration causing component displacement. The top of the mounting bracket 1 is provided with a telescopic component 304, and the right side of the mounting base 303 is provided with an elastic component 306. The sliding component 305 includes a slider 3051, which is fixedly connected to the mounting base 303 and can move synchronously with the mounting base 303. The top of the slider 3051 is fixedly connected to the bottom of the mounting base 303, and the outer wall of the slider 3051 is slidably connected with a slide rail 3052. Specifically, the vibration damping mechanism 3 includes a U-shaped seat 301, which is the connecting component between the vibration damping mechanism 3 and the fixed cylinder 4. Its U-shaped structure can flexibly receive the vibration transmitted by the fixed cylinder 4 and evenly transmit the vibration to the strip plate 302. The outer wall of the strip plate 302 is rotatably connected to the front and rear sides of the mounting base 303. The mounting base 303 is used to connect the strip plate 302 and the sliding component 305, converting the vibration transmitted by the strip plate 302 into the sliding power of the slider 3051, and at the same time providing a mounting base for the elastic component 306. The top of the mounting frame 1 is provided with a telescopic component 304, which is used to limit the sliding amplitude of the mounting base 303 and assist the mounting base 303 in resetting after the vibration disappears. To reduce the rebound impact of the elastic component 306, an elastic component 306 is provided on the right side of the mounting base 303. The elastic component 306 is the core actuator for vibration reduction. It absorbs the kinetic energy generated by the sliding of the mounting base 303 through its own elastic deformation, and converts the vibration energy into elastic potential energy, thereby achieving the vibration reduction effect. Its outer wall is tightly fitted with the inner wall of the slide rail 3052 to ensure accurate movement direction. The top of the slider 3051 is fixedly connected to the bottom of the mounting base 303. The outer wall of the slider 3051 is slidably connected to the slide rail 3052. The slide rail 3052 is fixed to the top of the mounting frame 1 to provide a fixed sliding track for the slider 3051, limit the movement range of the slider 3051, and prevent it from leaving the track during vibration.

[0021] Please see the appendix Figure 2 - Appendix Figure 4The rotating component 204 includes a double-threaded rod 2041. The outer wall of the double-threaded rod 2041 is fixedly connected to the inner wall of the helical gear 203. A threaded sleeve 2042 is threadedly connected to the outer wall of the double-threaded rod 2041. The inner wall of the threaded sleeve 2042 is provided with a thread that matches the double-threaded rod 2041, which is used to convert the rotational motion of the double-threaded rod 2041 into its own linear motion. A connecting component 205 is provided on the outer wall of the threaded sleeve 2042. The connecting component 205 includes a U-shaped plate 2051. The U-shaped plate 2051 serves as the basic component of the connecting component 205 and is fixedly fixed to the front side of the threaded sleeve 2042. At the same time, it provides a rotation mounting point for the connecting plate 2052. The rear side of the U-shaped plate 2051 is fixedly connected to the front side of the threaded sleeve 2042. The inner wall of the U-shaped plate 2051 is rotatably connected to the connecting plate 2052. A baffle 2053 is fixedly connected to the adjacent side of multiple connecting plates 2052. Specifically, the rotating assembly 204 includes a double-threaded rod 2041, which is the core transmission component of the rotating assembly 204. The double-threaded rod 2041 has threads in opposite directions at both ends of its outer wall, allowing it to drive the threaded sleeves 2042 on both sides to move simultaneously or in opposite directions during rotation. Simultaneously, it drives the baffle 2053 to move via a connecting assembly 205 fixed at the front. The connecting assembly 205 is provided on the outer wall of the threaded sleeve 2042, connecting the threaded sleeve 2042 and the baffle 2053 to ensure that the movement of the threaded sleeve 2042 is synchronously transmitted to the baffle 2053. Furthermore, its rotating connection structure prevents the baffle 2053 from shifting during movement. The rear side of the U-shaped plate 2051 is fixedly connected to the front side of the threaded sleeve 2042. The inner wall of the U-shaped plate 2051 is rotatably connected to the connecting plate 2052. The connecting plate 2052 is a flexible connecting component that can rotate around the connection point of the inner wall of the U-shaped plate 2051 to ensure that the baffle 2053 always maintains the blocking angle corresponding to the beam 501 during the movement, avoiding the blocking offset caused by component processing errors. The adjacent sides of multiple connecting plates 2052 are fixedly connected to the baffle 2053. The baffle 2053 is a light-shielding component, and its material has good light-shielding properties. By moving closer to or further away from the beam 501, the blocking area of ​​the light is changed, thereby adjusting the output light intensity.

[0022] Please see the appendix Figure 2 - Appendix Figure 4The telescopic component 304 includes a support plate 3041, the bottom of which is fixedly connected to the top of the mounting frame 1. A sliding column 3042 is fixedly connected to the right side of the support plate 3041. The sliding column 3042 is a hollow tubular structure and serves as the sliding carrier for the sliding column 3043. Its inner wall is smooth, which can reduce the friction when the sliding column 3043 moves and ensure smooth telescopic process. The inner wall of the sliding column 3042 is slidably connected to the sliding column 3043. The elastic component 306 includes a spring column 3061, the left side of which is fixedly connected to the right side of the mounting base 303. A fixing plate 3062 is fixedly connected to the right side of the spring column 3061. The fixing plate 3062 is fixed to the top of the mounting frame 1 and serves as the fixed end of the spring column 3061. This ensures that the spring column 3061 can be stably compressed or stretched when the mounting base 303 moves, and avoids the spring column 3061 from shifting and causing vibration damping failure. Specifically, the telescopic component 304 includes a support plate 3041, which serves as the fixed base for the telescopic component 304. The support plate 3041 is used to stably mount the telescopic component 304 on the top of the mounting frame 1 and provides fixed support for the sliding column 3042, ensuring the structural stability of the telescopic component 304. The bottom of the support plate 3041 is fixedly connected to the top of the mounting frame 1. A sliding column 3043 is slidably connected to the inner wall of the sliding column 3042. One end of the sliding column 3043 is connected to the mounting base 303 and can extend and retract along the inner wall of the sliding column 3042 as the mounting base 303 moves. This restricts the direction of movement of the mounting base 303 and, after the vibration disappears, assists the mounting base 303 in slowly resetting through its own weight or slight damping, reducing the rebound force of the elastic component 306. The elastic component 306 includes a spring column 3061, which is an elastic component with an integrated spring structure. It has good elastic deformation capability and can absorb vibration energy through compression or stretching, achieving a vibration reduction effect.

[0023] Working principle: By turning on the stepper motor 201, the helical gear 1 202 is driven to rotate. The helical gear 1 202 meshes with the helical gear 203, so the helical gear 203 drives the double-headed threaded rod 2041 to rotate. The helical gear 1 202 and the helical gear 203 have smooth transmission characteristics, reducing vibration and noise during the movement. The inner wall of the threaded sleeve 2042 is threaded, so the threaded sleeves 2042 on both sides can move closer and further away from each other. The baffle 2053 is corresponding to moving away from the light-emitting mechanism 5 and closer to the light-emitting mechanism 5. When it is close to the light-emitting mechanism 5, the light becomes weaker, and when it is far away from the light-emitting mechanism 5, the light becomes stronger, which achieves the function of adjusting the brightness according to the needs, thus enhancing practicality. When the fixed cylinder 4 vibrates, the vibration is transferred to the U-shaped seat 301, and then to the strip plate 302. Subsequently, the mounting seat 303 drives the slider 3051 to slide along the slide rail 3052, compressing the spring column 3061 and absorbing the vibration. When the vibration disappears, the second sliding column 3043 slowly contracts along the first sliding column 3042, reducing the rebound force of the spring column 3061 and enhancing its practicality.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

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