In-vehicle camera structure based on soft light technology

Abstract

The utility model provides a kind of vehicle interior camera structure based on soft light technology belongs to automobile parts technical field.The structure includes pedestal, camera and soft light ring module, camera and soft light ring module are arranged on pedestal with interval, soft light ring module includes LED lamp plate and light guide plate, a plurality of lamp beads are provided on LED lamp plate, light guide plate is set on LED lamp plate, the side of light guide plate close to LED lamp plate is provided with the aspherical microlens matched with lamp bead.The vehicle interior camera structure based on soft light technology provided by the utility model embodiment can solve the problem of low quality of the captured image caused by uneven light of the light supplementing lamp in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to an in-vehicle camera structure based on soft light technology. Background Technology

[0002] For some commercial vehicles, it is often necessary to install cameras inside the vehicle to monitor the situation inside and provide evidence for subsequent disputes, lost items retrieval, etc.

[0003] In existing technologies, in-vehicle cameras often suffer from reduced image quality due to insufficient light, so supplementary lights are usually installed on one side of the camera.

[0004] However, existing fill lights typically only use LED beads for illumination, resulting in harsh light that is prone to uneven lighting. This can lead to shadows or overexposure on the surface of people or objects, resulting in low image quality. Utility Model Content

[0005] This utility model embodiment provides an in-vehicle camera structure based on soft light technology, which can solve the problem of low image quality caused by uneven illumination from supplementary lighting in existing technologies. The technical solution is as follows: An in-vehicle camera structure based on soft light technology includes: a base, a camera, and a soft light ring module. The camera and the soft light ring module are arranged at intervals on the base. The soft light ring module includes an LED light board and a light guide plate. The LED light board is provided with multiple LED beads. The light guide plate is disposed on the LED light board. An aspherical microlens matching the LED beads is disposed on the side of the light guide plate near the LED light board.

[0006] Optionally, the LED beads are arranged in a rectangular array on the LED light panel.

[0007] Optionally, the lamp beads include a first lamp bead and a second lamp bead with different color temperatures, and the first lamp bead and the second lamp bead are arranged alternately.

[0008] Optionally, a limiting groove is formed on the side of the LED light panel near the light guide plate, and a limiting protrusion is provided on the side of the light guide plate near the LED light panel. The limiting protrusion and the limiting groove are interlocked.

[0009] Optionally, the soft light ring module further includes a light scattering plate, which is disposed on the light guide plate.

[0010] Optionally, a reflective hole is provided in the middle of the light scattering plate, and a reflective cloth is arranged in the reflective hole.

[0011] Optionally, the base has a module mounting hole, the soft light ring module is disposed in the module mounting hole, the light scattering plate is fixedly disposed around the periphery with a mounting ear plate, the mounting ear plate has a first mounting hole, the base has a second mounting hole that matches the first mounting hole, and screws are inserted into the first mounting hole and the second mounting hole.

[0012] Optionally, a light sensor is provided on the base, and the light sensor is signal-connected to the lamp bead.

[0013] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: This utility model provides an in-vehicle camera structure based on soft light technology. The base provides a mounting foundation for the camera and the soft light ring module. The soft light ring module can provide supplementary lighting for the camera. By setting an aspherical microlens at the bottom of the light guide plate, the total internal reflection of the light emitted by the LED beads in the light guide plate can be broken, and the light can be guided to be emitted evenly from the light-emitting surface facing the object. This makes the light emitted from the soft light ring module more uniform, which can effectively solve the problem of low image quality caused by uneven supplementary light in the prior art. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view schematic diagram of the overall structure provided in an embodiment of this utility model; Figure 2 This is a top view of the overall structure provided in an embodiment of the present utility model; Figure 3 This is a top view schematic diagram of the base provided in an embodiment of this utility model; Figure 4 This is a schematic diagram of the LED light board structure provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the light guide plate structure provided in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the cross-sectional structure of the soft light ring module provided in this embodiment of the utility model.

[0016] In the diagram: 1-Base; 11-Module mounting hole; 12-Second mounting hole; 2-Camera; 3-Soft light ring module; 31-LED light board; 311-LED bead; 3111-First LED bead; 3112-Second LED bead; 312-Limiting groove; 32-Light guide plate; 321-Aspherical microlens; 322-Limiting protrusion; 33-Light scattering plate; 331-Reflective hole; 332-Reflective cloth; 333-Mounting ear plate; 3331-First mounting hole; 4-Screw; 5-Light sensor. Detailed Implementation

[0017] 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.

[0018] Figure 1 This is a front view schematic diagram of the overall structure provided in an embodiment of this utility model; Figure 2 This is a top view of the overall structure provided in an embodiment of the present utility model; Figure 3 This is a top view schematic diagram of the base provided in an embodiment of this utility model; Figure 4 This is a schematic diagram of the LED light board structure provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the light guide plate structure provided in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the cross-sectional structure of the soft light ring module provided in an embodiment of this utility model. Figures 1 to 6 The in-vehicle camera structure based on soft light technology shown includes: a base 1, a camera 2, and a soft light ring module 3. The camera 2 and the soft light ring module 3 are arranged at intervals on the base 1. The soft light ring module 3 includes an LED light panel 31 and a light guide plate 32. The LED light panel 31 is provided with a plurality of LED beads 311. The light guide plate 32 is provided on the LED light panel 31. An aspherical microlens 321 matching the LED beads 311 is provided on the side of the light guide plate 32 near the LED light panel 31.

[0019] For example, in this embodiment of the present invention, the base 1 is fixed inside the vehicle body, and the camera 2 and the soft light ring module 3 are mounted on the base 1 and face the inside of the vehicle to take pictures. Both the camera 2 and the soft light ring module 3 can be detachably connected and mounted on the base 1, which facilitates the disassembly of the components for maintenance or replacement. The LED light board 31 is mounted on the base 1, and the LED beads 311 are located on the side away from the base 1. The LED beads 311 adopt COB (Chip-on-Board) technology to ensure uniform light emission. The light guide plate 32 is made of a high-transparency optical material (such as PMMA, polymethyl methacrylate) and is disposed on the LED light panel 31. An aspherical microlens 321 is disposed on the side of the light guide plate 32 closest to the LED light panel 31. The aspherical microlens 321 is positioned according to the arrangement of the LED beads 311 on the LED light panel 31. By setting the aspherical microlens 321, the total internal reflection of the light emitted by the LED beads 311 within the light guide plate 32 can be broken, guiding the light to be emitted uniformly from the light-emitting surface facing the object, thus solving the problem of uneven light emission from each LED bead 311 in traditional technology. In another embodiment, other microstructures different from the aspherical microlens 321 can be disposed at the bottom of the light guide plate 32, such as dots, prisms, or V-grooves.

[0020] This utility model provides an in-vehicle camera structure based on soft light technology. The base 1 provides a mounting foundation for the camera 2 and the soft light ring module 3. The soft light ring module 3 can provide supplementary lighting for the camera 2. By setting an aspherical microlens 321 at the bottom of the light guide plate 32, the total internal reflection of the light emitted by the lamp bead 311 within the light guide plate 32 can be broken, and the light can be guided to be emitted evenly from the light-emitting surface facing the object. This makes the light emitted from the soft light ring module 3 more uniform, which can effectively solve the problem of low image quality caused by uneven supplementary light in the prior art.

[0021] Optionally, multiple LEDs 311 are arranged in a rectangular array.

[0022] For example, in this embodiment of the present invention, by arranging multiple LED beads 311 in a rectangular array, the light emitted by the multiple LED beads 311 is made more uniform, thereby improving the quality of the images captured by the camera 2.

[0023] Optionally, the lamp bead 311 includes a first lamp bead 3111 and a second lamp bead 3112 with different color temperatures, and the first lamp bead 3111 and the second lamp bead 3112 are arranged alternately.

[0024] For example, in this embodiment of the present invention, the first LED bead 3111 and the second LED bead 3112 can be warm yellow and cool white LED beads respectively, so that the soft light ring module 3 can adjust the color temperature of the emitted light according to the environment, thereby enabling the camera structure to adapt to various different lighting environments and improving the applicability of the camera structure.

[0025] Optionally, a limiting groove 312 is provided on the side of the LED light panel 31 near the light guide plate 32, and a limiting protrusion 322 is provided on the side of the light guide plate 32 near the LED light panel 31. The limiting protrusion 322 and the limiting groove 312 are inserted and engaged.

[0026] Exemplarily, in this embodiment of the present invention, by providing a limiting groove 312 and a limiting protrusion 322 for insertion and engagement, the relative rotation of the LED light panel 31 and the light guide plate 32 can be restricted, thereby ensuring the relative positions of the LED bead 311 and the aspherical microlens 321. This ensures that the aspherical microlens 321 can guide light to be emitted uniformly from the light-emitting surface. By setting this structure, the stability of the camera structure is improved. In this embodiment, multiple limiting grooves 312 and limiting protrusions 322 are provided. The limiting grooves 312 are evenly spaced along the circumferential edge of the LED light panel 31, and the limiting protrusions 322 are evenly spaced along the circumferential edge of the light guide plate 32, thereby making the engagement between the LED light panel 31 and the light guide plate 32 more stable.

[0027] Optionally, the soft light ring module 3 also includes a light scattering plate 33, which is disposed on the light guide plate 32.

[0028] For example, in this embodiment of the present invention, the light scattering plate 33 is located on the outermost side of the soft light ring module 3 and is the final output layer of light. The light scattering plate 33 is made of soft light cloth, diffuser plate or frosted PET film material, which further scatters the light emitted by the light guide plate 32, eliminates residual small bright spots or light path traces, and finally forms a non-directional uniform surface light source, thereby further improving the uniformity of the light emitted by the soft light ring module 3.

[0029] Optionally, a reflective hole 331 is provided in the middle of the light scattering plate 33, and a reflective cloth 332 is arranged in the reflective hole 331.

[0030] For example, in this embodiment of the invention, a reflective fabric 332 is placed over the central region of the scattering layer. This effectively adjusts the light distribution in that region, preventing localized overexposure due to excessive light concentration in the central area. This arrangement not only balances the overall brightness levels of the image but also avoids detail loss or overexposure caused by a bright spot in the center. The reflective fabric 332, through its diffuse reflection, gently disperses the incident light, resulting in more uniform illumination of the outgoing light, thereby improving image quality and visual comfort.

[0031] Optionally, the base 1 has a module mounting hole 11, the soft light ring module 3 is disposed in the module mounting hole 11, and the light scattering plate 33 is fixedly provided with a mounting ear plate 333 on the periphery. The mounting ear plate 333 has a first mounting hole 3331, and the base 1 has a second mounting hole 12 that matches the first mounting hole 3331. Screws 4 are inserted into the first mounting hole 3331 and the second mounting hole 12.

[0032] For example, in this embodiment of the present invention, a camera mounting hole is also provided on the base 1, and the camera 2 is recessed and installed inside the base 1, thereby providing physical protection for the camera 2. The mounting ear plate 333 is a square plate, and by setting screws 4 to be inserted into the first mounting hole 3331 and the second mounting hole 12, the soft light ring module 3 is stably fixed in the module mounting hole 11. A recessed groove matching the mounting ear plate 333 can be opened on the base 1, so that the mounting ear plate 333 is embedded therein, thereby reducing the protrusion height of the soft light ring module 3 on the surface of the base, thereby making the external integrity of the camera structure higher.

[0033] Optionally, a light sensor 5 is provided on the base 1, and the light sensor 5 is connected to the LED bead 311 via a signal.

[0034] For example, in this embodiment of the invention, the light sensor 5 can collect the color temperature and brightness of ambient light and transmit signals to the LED bead 311, enabling the LED bead 311 to adjust its brightness according to different ambient light conditions. The color temperature output by the LED bead 311 can be adjusted by changing the ratio of the first LED bead 3111 to the second LED bead 3112. The light sensor 5 can transmit ambient light data to the in-vehicle central control system, where the AI ​​algorithm calculates the optimal light intensity and color temperature required for the face in the current environment, thereby controlling the LED bead 311. This structure improves the automation level of the camera structure.

[0035] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. 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.

Claims

1. An in-vehicle camera structure based on soft light technology, characterized in that, include: Base (1), camera (2) and soft light ring module (3). The camera (2) and the soft light ring module (3) are arranged at intervals on the base (1). The soft light ring module (3) includes an LED light board (31) and a light guide plate (32). The LED light board (31) is provided with a plurality of LED beads (311). The light guide plate (32) is provided on the LED light board (31). An aspherical microlens (321) matching the LED beads (311) is provided on the side of the light guide plate (32) close to the LED light board (31).

2. The in-vehicle camera structure based on soft light technology according to claim 1, characterized in that, The multiple LED beads (311) are arranged in a rectangular array.

3. The in-vehicle camera structure based on soft light technology according to claim 1, characterized in that, The lamp beads (311) include a first lamp bead (3111) and a second lamp bead (3112) with different color temperatures, and the first lamp bead (3111) and the second lamp bead (3112) are arranged alternately.

4. The in-vehicle camera structure based on soft light technology according to claim 1, characterized in that, The LED light panel (31) has a limiting groove (312) on the side near the light guide plate (32), and the light guide plate (32) has a limiting protrusion (322) on the side near the LED light panel (31). The limiting protrusion (322) and the limiting groove (312) are inserted into each other.

5. The in-vehicle camera structure based on soft light technology according to claim 1, characterized in that, The soft light ring module (3) also includes a light scattering plate (33), which is disposed on the light guide plate (32).

6. The in-vehicle camera structure based on soft light technology according to claim 5, characterized in that, The light scattering plate (33) has a reflective hole (331) in the middle, and a reflective cloth (332) is arranged in the reflective hole (331).

7. The in-vehicle camera structure based on soft light technology according to claim 5, characterized in that, The base (1) is provided with a module mounting hole (11), the soft light ring module (3) is disposed in the module mounting hole (11), the light scattering plate (33) is fixedly provided with a mounting ear plate (333) on the periphery, the mounting ear plate (333) is provided with a first mounting hole (3331), the base (1) is provided with a second mounting hole (12) that matches the first mounting hole (3331), and screws (4) are inserted in the first mounting hole (3331) and the second mounting hole (12).

8. The in-vehicle camera structure based on soft light technology according to claim 1, characterized in that, A light sensor (5) is provided on the base (1), and the light sensor (5) is connected to the lamp bead (311) via signal.

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