Dimmable backlight source assembly

Abstract

The utility model relates to the field of backlight assemblies, in particular to a dimmable backlight source assembly which comprises a base, a support, a rotating frame, an annular guide rail and a rotating block, the support is fixed at the upper end of the base, the rotating frame is rotatably installed at the upper end of the support, the annular guide rail is fixed on one side of the rotating frame, and a moving block is arranged in the annular guide rail. And a mounting frame is fixed to one side of the moving block, a mounting ring is arranged on one side of the mounting frame, rotating blocks distributed in an annular array are rotationally mounted on the surface of the mounting ring, and lamplight modules are mounted in the rotating blocks in an embedded mode. The height-adjustable light supplementing device is provided, different light supplementing requirements can be flexibly met, the visual effect and the shooting quality of a backlight plate are obviously improved, and the problems that existing backlight visual light supplementing is not sensitive, and the overall quality of backlight illumination is affected are solved.

Description

A dimmable backlight assembly Technical Field

[0001] This utility model relates to the field of backlight components, and more particularly to a dimmable backlight component. Background Technology

[0002] Backlighting is primarily used to address issues such as dullness and loss of detail in subjects caused by backlighting or insufficient light. In photography, videography, or display devices, backlighting (such as LED light strips) illuminates the subject from behind, while fill light uses additional light sources (such as sidelighting or front lighting) to balance overall brightness, reduce shadows, and enhance depth. It improves image clarity, color reproduction, and three-dimensionality, making it suitable for portrait photography, product displays, stage lighting, and other scenarios. It ensures the subject is bright and natural, avoids overexposed backgrounds or overly dark subjects, and enhances visual appeal.

[0003] While existing technologies can achieve a certain backlighting effect, they suffer from a drawback: the visual light compensation of existing backlights is not sensitive enough, which affects the overall quality of the backlight illumination. In view of this, we propose an adjustable backlight component to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an adjustable backlight assembly.

[0005] The technical solution of this utility model is as follows: An adjustable backlight assembly includes a base, a bracket, a rotating frame, an annular guide rail, and a rotating block. The bracket is fixed to the upper end of the base, and the rotating frame is rotatably mounted on the upper end of the bracket. An annular guide rail is fixed to one side of the rotating frame. A movable block is provided inside the annular guide rail. A mounting frame is fixed to one side of the movable block. A mounting ring is provided on one side of the mounting frame. Rotating blocks arranged in a circular array are rotatably mounted on the surface of the mounting ring. A light module is embedded inside the rotating block.

[0006] When in use, this device uses motor one to drive the entire circular guide rail to rotate at a certain angle, and light source three to achieve the overall lighting effect. Then, motor two drives the connecting frame to rotate, causing the mounting ring to rotate on the circular guide rail. When the backlight panel reaches the appropriate area, it will provide supplementary lighting. To make the supplementary lighting more layered, motor three can drive the rotating block to adjust the angles of light sources one and two, achieving light focusing. This allows for supplementary lighting of the areas on the backlight panel surface that need to be highlighted. Light sources one and two provide different lighting effects, and using them together will produce a more excellent effect. This device has a conveniently adjustable supplementary lighting effect and is highly practical.

[0007] Preferably, rollers are rotatably mounted on both sides inside the movable block, and the rollers are in contact with the inner wall of the annular guide rail. A connecting rod is fixed on one side of the movable block, and the connecting rod is rotatably connected to one side of the rotating frame. The addition of rollers can enhance the stability and smoothness of the device, and make the adjustment of the supplementary lighting position more precise and reliable.

[0008] Preferably, a second motor is fixed to one outer wall of the rotating frame, and the output shaft of the second motor is fixedly connected to the rotation center of one side of the connecting rod. The second motor can drive the connecting rod to rotate at a certain angle and fix its position, which simplifies manual operation and improves the efficiency and accuracy of the supplementary lighting position adjustment.

[0009] Preferably, a motor is fixed to one side of the outer wall of the rotating frame, and the output shaft of the motor is fixedly connected to one side of the bracket. The motor can adjust the rotation angle of the entire annular guide rail and fix its position, thus realizing the targeted positioning of the overall supplementary lighting.

[0010] Preferably, a motor is embedded in the surface of the mounting ring, and the output shaft of the motor is fixedly connected to the rotation center on one side of the rotating block. The motor can drive the rotating block to rotate at a certain angle, providing more precise lighting control and enhancing the sense of layering and expressiveness of the fill light.

[0011] Preferably, the lighting module includes light source one, light source two, and light source three. Light source one and light source two are respectively embedded and installed inside the rotating block. A controller is fixed at one end of the rotating block. Light source three is installed on one side of the annular guide rail. The controller can be connected to the back-end control system to facilitate the control of the rotation of each motor inside the device.

[0012] Preferably, a bracket is fixed to one side of the outer wall of the bracket, and a backlight plate is placed on the upper end of the bracket. The thickness of the backlight plate is slightly smaller than the spacing between the bracket buckles. The backlight plate can be directly inserted into the middle of the bracket buckles, which simplifies the installation process of the backlight plate and improves the practicality and ease of operation of the device.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] I. This utility model achieves flexible adjustment of the supplementary lighting angle, position and light effect through multi-motor coordinated drive and modular design. The combination of the ring guide rail and the rotating block provides a multi-level supplementary lighting effect.

[0015] Second, based on the first beneficial effect, the combination of the lighting module and controller further enhances the diversity and accuracy of lighting. The overall structure is stable and easy to operate, which can significantly improve the fill light effect of the backlight panel and is suitable for various scenarios such as photography and film and television production.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall installation of this utility model;

[0018] Figure 2 is a three-dimensional schematic diagram of this utility model;

[0019] Figure 3 is a partial schematic diagram of this utility model;

[0020] Figure 4 is a rear view of this utility model;

[0021] Figure 5 is an enlarged schematic diagram of structure A in Figure 2 of this utility model.

[0022] Figure label:

[0023] 1. Base; 2. Bracket; 3. Backlight panel; 4. Mounting bracket; 5. Circular guide rail; 6. Rotating bracket; 7. Connecting rod; 8. Card holder; 9. Controller; 10. Roller; 11. Moving block; 12. Motor 1; 13. Motor 2; 14. Motor 3; 15. Mounting ring; 16. Light source 1; 17. Light source 2; 18. Rotating block; 19. Light source 3. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please refer to Figures 1-5. This embodiment is an adjustable backlight assembly, including a base 1, a bracket 2, a rotating frame 6, an annular guide rail 5, and a rotating block 18. The bracket 2 is fixed to the upper end of the base 1, and the rotating frame 6 is rotatably mounted on the upper end of the bracket 2. An annular guide rail 5 is fixed to one side of the rotating frame 6. A moving block 11 is provided inside the annular guide rail 5. A mounting frame 4 is fixed to one side of the moving block 11. A mounting ring 15 is provided on one side of the mounting frame 4. Rotating blocks 18 arranged in a circular array are rotatably mounted on the surface of the mounting ring 15. A light module is embedded inside the rotating block 18.

[0030] When using this device, motor 12 drives the entire circular guide rail 5 to rotate at a certain angle, and light source 3 19 achieves the overall lighting effect. Then, motor 2 13 drives the connecting frame to rotate, causing the mounting ring 15 to rotate on the circular guide rail 5. When the backlight panel 3 reaches the appropriate position, it will achieve a supplementary lighting effect. In order to make the supplementary lighting more layered, motor 3 14 drives the rotating block 18 to adjust the angle of light source 1 16 and light source 2 17 to achieve light focusing. This allows the areas on the surface of the backlight panel 3 that need to be highlighted to be supplemented with light. Light source 1 16 and light source 2 17 have different lighting effects, and the effect is even better when used together. This device has a conveniently adjustable supplementary lighting effect and is highly practical.

[0031] Example 2

[0032] Please refer to Figures 1-5. This embodiment, based on embodiment 1, further includes: rollers 10 rotatably mounted on both sides inside the moving block 11, the rollers 10 fitting against the inner wall of the annular guide rail 5, a connecting rod 7 fixed on one side of the moving block 11, and the connecting rod 7 rotatably connected to one side of the rotating frame 6. The addition of rollers 10 can enhance the stability and smoothness of the device, making the adjustment of the supplementary lighting position more precise and reliable.

[0033] A second motor 13 is fixed to one side of the outer wall of the rotating frame 6. The output shaft of the second motor 13 is fixedly connected to the rotation center of one side of the connecting rod 7. The second motor 13 can drive the connecting rod 7 to rotate at a certain angle and fix its position, which simplifies manual operation and improves the efficiency and accuracy of the supplementary light position adjustment.

[0034] A motor 12 is fixed to one side of the outer wall of the rotating frame 6. The output shaft of the motor 12 is fixedly connected to one side of the bracket 2. The motor 12 can adjust the rotation angle of the entire annular guide rail 5 and fix its position, thus realizing the targeted positioning of the overall supplementary lighting.

[0035] Motor 3 14 is embedded in the surface of mounting ring 15. The output shaft of motor 3 14 is fixedly connected to the rotation center of one side of rotating block 18. Motor 3 14 can drive rotating block 18 to rotate a certain angle, providing more precise lighting control and enhancing the sense of layering and expressiveness of fill light.

[0036] The lighting module includes light source one 16, light source two 17 and light source three 19. Light source one 16 and light source two 17 are respectively embedded in the rotating block 18. A controller 9 is fixed at one end of the rotating block 18. Light source three 19 is installed on one side of the ring guide rail 5. The controller 9 can be connected to the back-end control system to facilitate the control of the rotation of each motor inside the device.

[0037] A bracket 8 is fixed to one side of the outer wall of the bracket 2. A backlight plate 3 is placed on the upper end of the bracket 8. The thickness of the backlight plate 3 is slightly smaller than the spacing between the buckles of the bracket 8. The backlight plate 3 can be directly inserted into the middle of the buckles of the bracket 8, which simplifies the installation process of the backlight plate 3 and improves the practicality and ease of operation of the device.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A dimmable backlight assembly, comprising a base (1), a bracket (2), a rotating frame (6), an annular guide rail (5), and a rotating block (18), characterized in that: The base (1) is fixed with a bracket (2) at its upper end. A rotating frame (6) is rotatably mounted on the upper end of the bracket (2). A ring guide rail (5) is fixed on one side of the rotating frame (6). A moving block (11) is provided inside the ring guide rail (5). A mounting frame (4) is fixed on one side of the moving block (11). A mounting ring (15) is provided on one side of the mounting frame (4). Rotating blocks (18) arranged in a ring array are rotatably mounted on the surface of the mounting ring (15). A light module is embedded inside the rotating block (18).

2. A dimmable backlight assembly as recited in claim 1, wherein: Rollers (10) are rotatably installed on both sides inside the movable block (11). The rollers (10) are in contact with the inner wall of the annular guide rail (5). A connecting rod (7) is fixed on one side of the movable block (11). The connecting rod (7) is rotatably connected to one side of the rotating frame (6).

3. The adjustable backlight assembly according to claim 2, characterized in that: Motor 2 (13) is fixed to one side of the outer wall of the rotating frame (6), and the output shaft of motor 2 (13) is fixedly connected to the rotation center of one side of the connecting rod (7).

4. The adjustable backlight assembly according to claim 1, characterized in that: A motor (12) is fixed to one side of the outer wall of the rotating frame (6), and the output shaft of the motor (12) is fixedly connected to one side of the bracket (2).

5. The adjustable backlight assembly according to claim 1, characterized in that: The mounting ring (15) has a motor three (14) embedded in its surface, and the output shaft of the motor three (14) is fixedly connected to the rotation center on one side of the rotating block (18).

6. The adjustable backlight assembly according to claim 1, characterized in that: The lighting module includes light source one (16), light source two (17) and light source three (19). Light source one (16) and light source two (17) are respectively embedded in the rotating block (18). A controller (9) is fixed at one end of the rotating block (18). Light source three (19) is installed on one side of the annular guide rail (5).

7. The adjustable backlight assembly according to claim 1, characterized in that: A card holder (8) is fixed to one side of the outer wall of the bracket (2), and a backlight plate (3) is placed on the upper end of the card holder (8). The thickness of the backlight plate (3) is slightly smaller than the spacing between the buckles of the card holder (8).

Images