Camera and dimming module

Abstract

A dimming module of a camera comprises a substrate and a plurality of dimming components. The substrate is provided with a lens arrangement area. The multiple dimming assemblies are arranged at intervals and surround the lens arrangement area. Each dimming assembly comprises a light emitting unit, a light guide part and an actuating part. The light-emitting unit comprises a movable part and a light-emitting part, and the light-emitting part is arranged on the movable part. The light guide member has a reflective surface facing the light emitting member. The actuating piece can drive the movable piece to move relative to the light guide piece, so that the light-emitting piece gets close to or away from the light guide piece.

Description

Technical Field

[0001] This invention relates to an electronic device, and more particularly to a camera and a dimming module. Background Technology

[0002] Many cameras are equipped with light sources as auxiliary lighting, so that the camera can obtain clearer images when capturing images, and can also have sufficient brightness for shooting at night or in low-light environments.

[0003] However, cameras have different lighting requirements depending on the usage environment or time. Using a single, fixed light source may result in less than expected image quality. For example, if a camera is installed outdoors, the light source may provide sufficient illumination to obtain a clear image. However, if the camera is installed indoors, using the same light source may result in overexposed images. Summary of the Invention

[0004] In view of the above, in one embodiment, a dimming module for a camera is provided, including a substrate and a plurality of dimming components. The substrate has a lens mounting area. The plurality of dimming components are disposed on the substrate, spaced apart from each other and surrounding the lens mounting area. Each dimming component includes a light-emitting unit, a light guide, and an actuator. The light-emitting unit includes a movable member and a light-emitting element, the light-emitting element being disposed on the movable member. The light guide has a reflective surface facing the light-emitting element. The actuator is connected to the movable member, and the actuator can selectively drive the movable member to move relative to the light guide, causing the light-emitting element to approach or move away from the light guide.

[0005] In another embodiment, a camera is provided, including a camera body, the aforementioned dimming module, and a camera lens. The dimming module is disposed inside the camera body, and the camera lens is disposed in the lens setting area of ​​the substrate of the dimming module.

[0006] In summary, the dimming module of this invention can drive the light-emitting element to move closer to or away from the light guide element by an actuator according to the actual usage of the camera (e.g., usage environment, usage time, installation position or placement angle, etc.), so as to guide the light through the reflective surface and generate a suitable illumination field, so that the image acquired by the camera maintains good quality. Attached Figure Description

[0007] Figure 1 This is a perspective view of one embodiment of the camera of the present invention.

[0008] Figure 2 This is an exploded perspective view of one embodiment of the camera of the present invention.

[0009] Figure 3 This is a partially exploded perspective view of an embodiment of the dimming module of the present invention.

[0010] Figure 4 This is a top view of one embodiment of the camera of the present invention.

[0011] Figure 5 for Figure 4 A sectional view along line segment 5-5.

[0012] Figure 6 This is a cross-sectional view of the movable component of the dimming module of the present invention at the first position.

[0013] Figure 7 This is a cross-sectional view of the movable component of the dimming module of the present invention at the second position.

[0014] Figure 8 This is a schematic diagram of the illumination light field of the movable component of the dimming module of the present invention at the first position.

[0015] Figure 9 This is a schematic diagram of the illumination light field of the movable component of the dimming module of the present invention at the second position.

[0016] Figure 10 This is a schematic diagram of the camera of the present invention installed in an indoor space.

[0017] Figure 11 This is a schematic diagram of the camera of the present invention installed in an outdoor space.

[0018] Figure 12 This is a schematic diagram of the image acquisition method of the camera of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1: Camera

[0021] 2: Dimming module

[0022] 10: Substrate

[0023] 101: First conductive part

[0024] 11: Lens Settings Area

[0025] 12: Processor

[0026] 13: Angle sensor

[0027] 14: Memory

[0028] 15: Slide rail

[0029] 20: Dimming Components

[0030] 21: Light-emitting unit

[0031] 22: Active parts

[0032] 221: Second conductive part

[0033] 23: Light-emitting components

[0034] 25: Light guide component

[0035] 251: First reflecting surface

[0036] 252: Second reflecting surface

[0037] 253: Fixing plate

[0038] 254: Reflector

[0039] 255: Bending section

[0040] 256: First Slab

[0041] 257: Second plate

[0042] 26: Screws

[0043] 27: Actuator

[0044] 28: Drive motor

[0045] 281: Shaft

[0046] 29: Linkage components

[0047] 30: Camera body

[0048] 31: Camera lens

[0049] 40: Light-transmitting cover

[0050] A1: First included angle

[0051] A2: Second included angle

[0052] A: Central axis

[0053] G: Ground level

[0054] M: Acquire Image

[0055] C: Central Area

[0056] F1: First illumination field

[0057] F2: Second illumination field Detailed Implementation

[0058] Various embodiments are described in detail below; however, these embodiments are merely illustrative and do not limit the scope of protection intended for this invention. Furthermore, some elements are omitted from the accompanying drawings in the embodiments to clearly illustrate the technical features of the invention. The same reference numerals will be used to denote the same or similar elements in all the drawings.

[0059] Figure 1 This is a perspective view of one embodiment of the camera of the present invention. Figure 1 As shown, the camera 1 in this embodiment includes a camera body 30, a dimming module 2, and a camera lens 31. In some embodiments, the camera 1 may be a network camera (IP camera), closed-circuit television (CCTV), or analog surveillance camera, etc. Furthermore, the camera 1 can be installed in various locations (e.g., nurseries, offices, shops, highways, etc.) for security monitoring or recording of personnel activities.

[0060] Figure 2 This is an exploded perspective view of one embodiment of the camera of the present invention. Figure 3 This is a partially exploded perspective view of an embodiment of the dimming module of the present invention. Figures 1 to 3 As shown, the camera body 30 can be a hollow shell, and the dimming module 2 is disposed inside the camera body 30. The dimming module 2 includes a substrate 10 and a plurality of dimming components 20. In this embodiment, the number of dimming components 20 is four, but this is not a limitation. The substrate 10 has a lens mounting area 11 for the corresponding assembly of the camera lens 31. The plurality of dimming components 20 are disposed on the substrate 10, and the plurality of dimming components 20 are spaced apart from each other and surround the lens mounting area 11.

[0061] In some embodiments, the plurality of dimming components 20 may be arranged at equal angles (e.g., 30°, 45° or 60°) with the center of the lens setting area 11 of the substrate 10 as a reference, or the plurality of dimming components 20 may be arranged in an irregular manner.

[0062] like Figures 1 to 3 As shown, in this embodiment, the substrate 10 of the dimming module 2 is a circuit board, and the lens setting area 11 has a central opening, forming a ring-shaped circuit board on the substrate 10. The camera lens 31 is assembled on the camera body 30 and located within the lens setting area 11 of the substrate 10, so as to avoid the camera lens 31 being blocked by the substrate 10 and thus be able to acquire external images. In other embodiments, the lens setting area 11 of the substrate 10 may also be a solid area, and the camera lens 31 may be mounted on the surface of the lens setting area 11.

[0063] like Figure 2 and Figure 3As shown, each dimming component 20 of the dimming module 2 includes a light-emitting unit 21, a light guide 25, and an actuator 27. The light-emitting unit 21 includes a movable component 22 and a light-emitting element 23, with the light-emitting element 23 disposed on the movable component 22. In some embodiments, the movable component 22 may be a circuit board, and the light-emitting element 23 may be electrically connected to the movable component 22. For example, the light-emitting element 23 may be a light-emitting diode (LED) and electrically connected to the movable component 22 through conductive lines, or the light-emitting element 23 may also be mounted on the movable component 22 using surface-mount technology (SMT).

[0064] like Figures 1 to 3 As shown, in this embodiment, the camera 1 includes a light-transmitting cover 40, which is assembled on the camera body 30 and covers the camera lens 31 and the dimming module 2, so that the camera lens 31 and the dimming module 2 are protected, and external light can enter the light-transmitting cover 40 to be transmitted to the camera lens 31 to obtain an image. The light emitted by each light-emitting element 23 of the dimming module 2 can also pass through the light-transmitting cover 40 to achieve the effect of auxiliary lighting.

[0065] Figure 4 This is a top view of one embodiment of the camera of the present invention. Figure 5 for Figure 4 A sectional view along line segment 5-5. (e.g.) Figures 2 to 5 As shown, the light guide 25 of each dimming component 20 is located between the light-emitting unit 21 and the lens setting area 11. That is, the light-emitting unit 21 is closer to the periphery of the substrate 10 relative to the light guide 25. In this embodiment, the light guide 25 has a reflective surface (first reflective surface 251 and second reflective surface 252) facing the light-emitting element 23. The first reflective surface 251 is adjacent to the substrate 10 relative to the second reflective surface 252, and the second reflective surface 252 is connected to the first reflective surface 251. The first angle A1 between the first reflective surface 251 and the substrate 10 is greater than the second angle A2 between the second reflective surface 252 and the substrate 10. This invention is not limited to this, and the configuration of the reflective surface of the light guide 25 can be adjusted as needed, for example, a reflective surface with only a single angle. The light guide 25 is used to guide the light emitted by the light-emitting element 23 to generate a suitable illumination light field. In this embodiment, the light guide 25 is used to guide the light to the periphery of the camera 1. This invention is not limited to this.

[0066] In some embodiments, the length of the first reflective surface 251 and the length of the second reflective surface 252 may be the same or different, and the preferred length ratio between the first reflective surface 251 and the second reflective surface 252 may be determined according to the characteristics of the light-emitting element 23 or the actual required light field.

[0067] like Figures 3 to 5As shown, in this embodiment, the light guide 25 of each dimming component 20 is integrally bent from a plate. The light guide 25 includes a fixing plate 253 and a reflective plate 254. The fixing plate 253 is fixed to the substrate 10, for example, by screws 26. The reflective plate 254 is bent from one end of the fixing plate 253 away from the substrate 10, and has a bending portion 255 between its two ends, forming two plates 256 and 257 with different tilt angles. The first plate 256 is integrally connected between the fixing plate 253 and the second plate 257. The surface of the first plate 256 facing the light-emitting element 23 is the first reflective surface 251, and the surface of the second plate 257 facing the light-emitting element 23 is the second reflective surface 252. In other embodiments, the light guide 25 of each dimming component 20 may also be a single piece or an assembly composed of multiple components.

[0068] In some embodiments, the light guide 25 of each of the dimming components 20 described above may be made of a light-colored material, such as white or light yellow plastic, or dyed plastic (e.g., silver, gold, light blue, light green, or light gray), so that the first reflective surface 251 and the second reflective surface 252 of the light guide 25 have better light reflection function. Alternatively, the first reflective surface 251 and the second reflective surface 252 of the light guide 25 may have a reflective layer (not shown in the figure). For example, the reflective layer may be a light-colored ink layer printed or coated on the first reflective surface 251 and the second reflective surface 252. For example, the light-colored ink layer may be white, silver, gold, light blue, light green, light yellow, or light gray ink layer to have the function of reflecting light. Alternatively, the reflective layer may also be a light-colored film layer, such as glass reflective film, PET reflective film, PVC reflective film, or other light-colored films to have better light reflection function.

[0069] like Figures 3 to 5 As shown, actuator 27 is connected to movable member 22, and actuator 27 can drive movable member 22 to move relative to light guide member 25, so that light-emitting member 23 on movable member 22 can move closer to or away from light guide member 25. In this embodiment, actuator 27 includes drive motor 28 (e.g., stepper motor or linear motor) and linkage 29, wherein linkage 29 may be, for example, a gear transmission mechanism, worm gear mechanism, cam mechanism or linkage mechanism, etc. Drive motor 28 is connected to movable member 22 via linkage 29. When drive motor 28 is running, it can drive movable member 22 to move relative to light guide member 25 through linkage 29.

[0070] like Figure 2 , Figure 3 and Figure 5As shown, in this embodiment, the drive motor 28 has a rotating shaft 281, and the linkage 29 is a swing arm. One end of the linkage 29 (swing arm) is connected to the rotating shaft 281, and the other end of the linkage 29 (swing arm) is pivotally mounted on the movable member 22. The substrate 10 has a plurality of slide rails 15, which surround the lens setting area 11 and correspond to a plurality of dimming components 20 respectively. The movable member 22 of each dimming component 20 is movably disposed between each slide rail 15. Thus, when the drive motor 28 operates and the rotating shaft 281 rotates, the linkage 29 can swing relative to the substrate 10 to drive the movable member 22 to move linearly along the slide rail 15, so that the light-emitting element 23 on the movable member 22 moves closer to or away from the light guide element 25.

[0071] Therefore, according to the actual usage conditions (e.g., the usage environment, usage time, installation position or placement angle of the camera 1), the camera 1 of the present invention can drive the light-emitting element 23 to move closer to or away from the light guide element 25 through the actuator 27, so as to guide the light through the first reflective surface 251 and the second reflective surface 252 of the light guide element 25 to generate a suitable illumination field, so that the image acquired by the camera 1 maintains good quality. This is explained in conjunction with the accompanying drawings below.

[0072] Figure 6 This is a cross-sectional view of the movable component of the dimming module of the present invention at the first position. Figure 7 A cross-sectional view of the movable component of the dimming module of the present invention at the second position. Figure 8 This is a schematic diagram of the illumination light field of the movable component of the dimming module of the present invention at the first position. Figure 9 This is a schematic diagram of the illumination light field of the movable component of the dimming module of the present invention at the second position. Please refer to it. Figure 6 and Figure 8 As shown, when the light-emitting element 23 of each dimming component 20 approaches the light guide element 25 (e.g. Figure 6 As shown), most of the light emitted by the light-emitting element 23 of each dimming component 20 is reflected by the first reflecting surface 251 and the second reflecting surface 252 of each light guide 25 and propagated towards the periphery of the camera 1. A small portion of the light emitted by the light-emitting element 23 of each dimming component 20 is directed towards the light-emitting direction (i.e., the optical axis direction) of the light-emitting element 23, thereby forming a first illumination light field F1 with a darker central area and a brighter surrounding area (as shown). Figure 8 (As shown). Conversely, when the light-emitting element 23 of each dimming component 20 is far away from the light guide element 25 (as shown). Figure 7 As shown), a small portion of the light emitted by the light-emitting element 23 of each dimming component 20 is reflected by the first reflective surface 251 and the second reflective surface 252 of each light guide 25 and propagates towards the periphery of the camera 1. Most of the light emitted by the light-emitting element 23 is directed towards the light-emitting direction (i.e., the optical axis direction) of the light-emitting element 23, thus forming a second illumination field F2 (as shown). This field is brighter in the center and darker in the surrounding area. Figure 9(As shown). In this way, when the light-emitting element 23 of each dimming component 20 moves to different positions, different lighting fields can be generated to match the different usage scenarios of the camera 1.

[0073] like Figure 3 , Figure 6 and Figure 7 As shown, the substrate 10 has a first conductive portion 101, which is an elongated conductive portion and extends along the moving direction of the movable member 22. Each dimming assembly 20's movable member 22 has a second conductive portion 221, which is a dot-shaped conductive portion. The light-emitting element 23 of each dimming assembly 20 is electrically connected to the second conductive portion 221. During the movement of the movable member 22 relative to the substrate 10, the second conductive portion 221 can move along the first conductive portion 101 and continuously make electrical contact with the first conductive portion 101. Thus, the light-emitting element 23 of each dimming assembly 20 can be electrically connected to the substrate 10 so that power is provided by the substrate 10. However, the above embodiment is merely an example. In other embodiments, the first conductive portion 101 may also be a dot-shaped conductive portion, and the second conductive portion 221 may be an elongated conductive portion. Alternatively, the light-emitting element 23 of each dimming assembly 20 may also be powered by other power sources.

[0074] In some embodiments, the camera 1 can control the actuator 27 to drive the movable member 22 to move relative to the substrate 10 according to its set angle. That is, when the camera 1 is at different set angles, the light-emitting elements 23 of each dimming component 20 can be located at different positions to generate different illumination light fields. For example, such as Figure 2 and Figure 3 As shown, in this embodiment, the substrate 10 has a processor 12 and an angle sensor 13. The processor 12 is connected to the angle sensor 13 and the actuator 27. The angle sensor 13 senses and obtains tilt angle information, and the processor 12 can control the actuator 27 to drive the moving member 22 to move according to the tilt angle information. In some embodiments, the angle sensor 13 may be a gyroscope, a rotary variable differential transformer (RVDT), or an inductive angle sensor. The processor 12 may be, for example, a central processing unit (CPU) composed of a single core or multiple cores, or other programmable general-purpose or special-purpose microprocessors, digital signal processors (DSPs), etc.

[0075] Following on, such asFigure 6 and Figure 7 As shown, the processor 12 can control the actuators 27 of each dimming component 20 to drive the movable component 22 and the light-emitting component 23 to move to the first position (e.g., Figure 6 The position shown) and the second position (as shown) Figure 7 The positions shown are between the first and second positions, with the first position adjacent to the light guide 25. As previously described, when the movable member 22 is in the first position, the plurality of dimming components 20 can generate a first illumination field F1 (e.g., a darker central area and a brighter surrounding area) between the positions shown, where the first position is adjacent to the light guide 25 relative to the second position. Figure 8 (As shown). When the movable part 2 is in the second position, the multiple dimming components 20 can generate a second illumination field F2 with a brighter central area and a darker surrounding area (as shown). Figure 9 (As shown). When the tilt angle information is a first angle, the processor 12 controls the actuator 27 to drive the movable member 22 to move to the first position. When the tilt angle information is a second angle different from the first angle, the processor 12 controls the actuator 27 to drive the movable member 22 to move to the second position. In this way, the processor 12 can generate different illumination light fields corresponding to the camera 1 being located at different tilt angles.

[0076] For example, the first angle and the second angle mentioned above can be the angle between the central axis A of the lens setting area 11 of camera 1 and the ground plane G. Figure 10 As shown, in this embodiment, camera 1 is located in an indoor space, and is mounted on the ceiling facing the ground, such that the angle (first angle) between the central axis A of camera 1 and the ground plane G is approximately 90 degrees. Generally, the height from the floor to the ceiling of an indoor space is only about 2-3 meters. Therefore, if the brightness of the central area of ​​the illumination field generated by the multiple dimming components 20 is high, the image acquired by camera 1 is prone to overexposure in the central area. Therefore, processor 12 can control actuator 27 to drive movable component 22 and light-emitting component 23 to the aforementioned first position (e.g., when camera 1 is at the aforementioned first angle (approximately 90 degrees)). Figure 6 (as shown in the image) to generate the first illumination field F1 (e.g., ... Figure 8 (as shown), in order to avoid the aforementioned image overexposure.

[0077] Following on, such as Figure 11 As shown, in this embodiment, the camera 1 is located in an outdoor space and is mounted on a side wall, making the angle (second angle) between the central axis A of the camera 1 and the ground plane G approximately 0 degrees. This results in a relatively long shooting distance for the camera lens 31 of the camera 1. Therefore, if the central brightness of the illumination field generated by the multiple dimming components 20 is low, the image acquired by the camera 1 is prone to being too dark and unclear in the central area. Thus, the processor 12 can control the actuator 27 to drive the movable component 22 to move to the aforementioned second position (e.g., when the camera 1 is at the second angle (approximately 0 degrees)). Figure 7(as shown in the image) to generate a second illumination field F2 (as shown in the image) Figure 9 (As shown), to avoid the aforementioned situation where the image is too dark. However, the values ​​of the first angle and the second angle in the above embodiment are merely examples, and the present invention is not limited thereto.

[0078] In some embodiments, the camera 1 may also control the actuator 27 to drive the moving part 22 and the light-emitting part 23 to move relative to the substrate 10 according to the brightness value of the acquired image. For example, the processor 12 can continuously detect the brightness value of the acquired image. When the brightness value changes, the processor 12 can immediately control the actuator 27 to change the position of the light-emitting part 23 of each dimming component 20 to generate a suitable illumination field.

[0079] Following on, such as Figure 12 As shown, the processor 12 of camera 1 controls the actuator 27 to drive the movable member 22 to move based on the brightness value of the central region C of the acquired image M. In some embodiments, the processor 12 may control the actuator 27 to drive the movable member 22 to the aforementioned first position (e.g., when the central region C of the acquired image M has a first brightness value). Figure 6 When the processor 12 acquires a second brightness value (less than the first brightness value) in the central region C of the image M, it controls the actuator 27 to drive the movable member 22 to move to the second position (as shown). Figure 7 (The location shown).

[0080] For example, the substrate 10 may have a memory 14, which is connected to the processor 12 and stores a predetermined brightness range corresponding to the central region C of the acquired image M. When the first brightness value is greater than the predetermined brightness range, it indicates that the central region C of the acquired image M is too bright. Therefore, the processor 12 controls the actuator 27 to drive the movable member 22 to move to the first position (e.g., Figure 6 (as shown in the image) to generate the first illumination field F1 (e.g., ... Figure 8 As shown), this reduces the brightness of the central region C of the acquired image M. Conversely, when the second brightness value is less than a predetermined brightness range, it indicates that the central region C of the acquired image M is too dark, so the processor 12 can control the actuator 27 to drive the movable member 22 to the second position (as shown). Figure 7 (as shown in the image) to generate a second illumination field F2 (as shown in the image) Figure 9 (as shown), thereby increasing the brightness of the central region C of the acquired image M.

[0081] In some embodiments, the memory 14 described above is, for example, any type of fixed or removable random access memory (RAM), read-only memory (ROM), or flash memory.

[0082] In some embodiments, the processor 12 can determine whether the movable member 22 has indeed moved to the first position or the second position based on the image information stored in the memory 14. For example, the movable member 22 may have a travel distance. The processor 12 can control the actuator 27 to drive the movable member 22 to move. During the travel distance of the movable member 22, when the movable member 22 moves a predetermined distance (e.g., 0.01mm-1mm) and is located at a different position, the processor 12 can detect the image brightness value of the acquired image M at each position (e.g., the brightness value of the central region C of the acquired image M) and store it in the memory 14. For example, the memory 14 can store a first image brightness value corresponding to the first position and a second image brightness value corresponding to the second position, and the first image brightness value is different from the second image brightness value. In this way, the processor 12 can determine whether the movable member 22 has indeed moved to the first position based on the first image brightness value and whether the movable member 22 has indeed moved to the second position based on the second image brightness value.

[0083] In some embodiments, the processor 12 of the camera 1 can also drive the movable part 22 to move to change the position of the light-emitting element 23 according to the user's control commands. For example, the processor 12 can be connected to the user's mobile device (e.g., a mobile phone or tablet) via a wired or wireless communication interface. The user can issue control commands through the mobile device according to the actual usage situation (e.g., image brightness value or the placement angle of the camera 1). The processor 12 can receive the control commands via the wired or wireless communication interface and drive the movable part 22 and the light-emitting element 23 to move accordingly, allowing the user to set the optimal lighting field.

[0084] Although the technical content of the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention should be included within the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A dimming module for a video camera, characterized by, include: The substrate has a lens mounting area; as well as Multiple dimming components are disposed on the substrate, spaced apart from each other and surrounding the lens mounting area. Each dimming component includes: The light-emitting unit includes a movable component and a light-emitting component, wherein the light-emitting component is disposed on the movable component; A light guide having a reflective surface facing the light-emitting element; and An actuator, connected to the movable member, can selectively drive the movable member to move relative to the light guide member, so that the light-emitting member approaches or moves away from the light guide member.

2. The light module of claim 1, wherein, The actuator can selectively drive the movable element to move between a first position and a second position, the first position being adjacent to the light guide relative to the second position.

3. The light module of claim 1, wherein, The reflective surface includes a first reflective surface and a second reflective surface. The first reflective surface is adjacent to the substrate relative to the second reflective surface. The second reflective surface is connected to the first reflective surface. The angle between the first reflective surface and the substrate is greater than the angle between the second reflective surface and the substrate.

4. The light module of claim 1, wherein, The substrate has a processor and an angle sensor. The processor is connected to the angle sensor and the actuator. The angle sensor senses and obtains tilt angle information. The processor controls the actuator to drive the moving part to move according to the tilt angle information.

5. The dimming module for a video camera of claim 4, wherein, The actuator can selectively drive the movable member to move between a first position and a second position, wherein the first position is adjacent to the light guide relative to the second position; when the tilt angle information is a first angle, the processor controls the actuator to drive the movable member to move to the first position; when the tilt angle information is a second angle, the processor controls the actuator to drive the movable member to move to the second position, wherein the first angle is different from the second angle.

6. The light module of claim 5, wherein the light module is configured to be mounted on a camera. The first angle and the second angle are the angles between the central axis of the lens setting area and the ground plane, and the first angle is greater than the second angle.

7. The light module of claim 1, wherein, The substrate has a processor that controls the actuator to drive the moving part to move based on the brightness value of the central region of the acquired image.

8. The light module of claim 7, wherein the light module is configured to be mounted on a camera. The actuator can selectively drive the movable member to move between a first position and a second position, wherein the first position is adjacent to the light guide relative to the second position; when the central region has a first brightness value, the processor controls the actuator to drive the movable member to move to the first position; when the central region has a second brightness value, the processor controls the actuator to drive the movable member to move to the second position, wherein the first brightness value is greater than the second brightness value.

9. The light module of claim 8, wherein the light module is a camera light module. The substrate has a memory connected to the processor. The memory stores an image brightness value corresponding to the first position. The processor determines whether the movable part has moved to the first position based on the image brightness value.

10. The light module of claim 1, wherein, The actuator includes a drive motor and a linkage, with the drive motor connected to the moving part via the linkage.

11. The dimming module for a video camera of claim 10, wherein, The drive motor has a rotating shaft, and the linkage is a swing arm. One end of the swing arm is connected to the rotating shaft, and the other end of the swing arm is pivotally mounted on the movable component.

12. The light module of claim 1, wherein, The substrate has multiple slide rails that surround the lens setting area and correspond to multiple dimming components. The movable part of each dimming component is slidably connected to each slide rail.

13. The dimming module for a video camera of claim 1, wherein, The substrate has a first conductive part, the movable member of each light-adjusting component has a second conductive part, and the light-emitting member is electrically connected to the second conductive part; during movement of the movable member relative to the substrate, the first conductive part continuously electrically contacts the second conductive part.

14. A video camera, characterized by Comprise: a camera body; a light-adjusting module as claimed in any one of claims 1 to 13, disposed inside the camera body; and a camera lens, disposed in the lens setting area of the substrate of the light-adjusting module.

Images