An illumination lamp, a control method of the illumination lamp and an illumination camera

Abstract

This application discloses a supplementary lighting lamp, a control method for the supplementary lighting lamp, and a supplementary lighting camera. The supplementary lighting lamp includes a substrate, three first light-emitting units and six second light-emitting units arranged in a three-row, three-column, nine-square grid matrix, and a lens. The rated power of the first light-emitting units is greater than that of the second light-emitting units, so that their illumination areas correspond to the distant / road center and the near / road sides, respectively, achieving uniform illumination. Each light-emitting unit has a reflective structure, and its light-emitting ports are closely adjacent to eliminate illumination blind spots. The control method can independently adjust the switching and power of each light-emitting unit, dynamically adjust the number of lights according to the illumination distance, and adjust the brightness according to the ambient illuminance, achieving flexible supplementary lighting and energy saving. This invention solves the technical problems of uneven brightness, blind spots, poor flexibility, and high energy consumption in the prior art, significantly improving the road monitoring effect.

Description

Technical Field

[0001] This invention relates to the field of road traffic safety technology, specifically to a supplementary lighting lamp, a control method for the supplementary lighting lamp, and a supplementary lighting camera. Background Technology

[0002] When ambient light is insufficient, road traffic monitoring cameras need to be supplemented with additional lighting equipment to ensure clear monitoring images. However, existing supplementary lighting solutions all have varying degrees of defects, resulting in poor lighting effects, low energy efficiency, and high costs.

[0003] First, traditional supplementary lighting generally suffers from severe uneven brightness, specifically manifested as "near objects being brighter and distant objects being darker" and "the center of the image being brighter and the edges being darker." This makes it impossible for the surveillance footage to simultaneously capture clear details of both near and far scenes.

[0004] Secondly, existing technologies suffer from illumination blind spots or dark areas. Please refer to... Figure 1 A common solution is to use a densely arranged array of LEDs or lasers. However, this approach has inherent drawbacks: to connect a large number of light-emitting units, dense metal traces must be laid between them, resulting in unavoidable physical gaps between the units. These gaps cause discontinuities in the light-emitting surface, creating inherent blind spots and dark areas. Furthermore, because the beam expands conically with increasing distance, the coverage area of ​​these blind spots and dark areas also continuously expands, severely impacting the monitoring effect.

[0005] Furthermore, existing supplementary lighting solutions cannot flexibly adjust the illumination area and result in significant power waste. Typically, they can only uniformly increase the brightness of the entire monitored area. This crude supplementary lighting mode leads to over-lighting in areas with sufficient illuminance, while insufficient lighting remains in areas that need enhanced illumination, causing huge energy waste and exacerbating uneven brightness in the image.

[0006] Furthermore, to improve the supplementary lighting effect, existing technologies also employ separate high beam and low beam setups. However, this undoubtedly increases the system's complexity and hardware costs. Furthermore, solutions using large LED arrays are inherently costly and complex to control due to the sheer number of light sources.

[0007] Therefore, there is an urgent need in this field for a supplementary lighting solution that can simultaneously solve uneven brightness, eliminate blind spots, achieve flexible control, and reduce costs and energy consumption. Summary of the Invention

[0008] The main technical problem solved by this invention is how to simultaneously address uneven brightness of supplementary lighting, eliminate blind spots, achieve flexible control, and reduce costs and energy consumption.

[0009] According to a first aspect, one embodiment provides a supplementary light, comprising:

[0010] substrate;

[0011] Three first light-emitting units are arranged in a row on the substrate, and the three first light-emitting units are used to form three first irradiation areas A1-A3 on the irradiation surface;

[0012] Six second light-emitting units are arranged in two columns on the substrate. The two columns of second light-emitting units are respectively arranged on both sides of the first light-emitting unit, forming a three-row, three-column nine-square grid matrix.

[0013] The six second light-emitting units are used to form six second irradiation areas B1-B6 on the irradiation surface, so that the second irradiation areas are evenly distributed on both sides of the first irradiation area;

[0014] as well as

[0015] Lenses are arranged on the light-emitting side of the first and second light-emitting units and are used to focus, shape, collimate, and emit the light beam.

[0016] Wherein, the rated luminous power of the first luminous unit is greater than the rated luminous power of the second luminous unit, so that the first irradiation area A1-A3 is formed by the first luminous unit and corresponds to the distant view and / or the middle area of ​​the irradiation surface, and the second irradiation area B1-B6 is formed by the second luminous unit and corresponds to the near view and / or the two sides of the irradiation surface, so as to achieve supplementary lighting for the distant view and near view, and the middle and sides of the road.

[0017] In another embodiment, both the first light-emitting unit and the second light-emitting unit are provided with a reflective structure for converging light, and the reflective structure forms a light-emitting port above the first light-emitting unit and the second light-emitting unit;

[0018] The adjacent reflective structures are closely adjacent to or share the reflective structure at the light outlet to eliminate the illumination blind zone between the light outlets.

[0019] In another embodiment, the reflective structure is disposed around the first light-emitting unit and the second light-emitting unit, and the reflective structure is formed by filling with reflective material;

[0020] The reflective material surrounds the first light-emitting unit and the second light-emitting unit to form a first reflective cavity and a second reflective cavity, the light outlet is disposed at the opening of the first reflective cavity and the second reflective cavity, and the inner walls of the first reflective cavity and the second reflective cavity form a reflective surface.

[0021] In another embodiment, the reflective structure is disposed on the first light-emitting unit and the second light-emitting unit, and the reflective structure is formed by curing a light-transmitting adhesive; the periphery of the light-transmitting adhesive is configured as a cavity structure, and the interface between the light-transmitting adhesive and the cavity structure forms a reflective surface.

[0022] In another embodiment, an inner lens is provided at the light outlet.

[0023] In another embodiment, the first light-emitting unit is configured to emit infrared light, and the second light-emitting unit is configured to emit white light.

[0024] In another embodiment, the surfaces of the first light-emitting unit and the second light-emitting unit are covered with a fluorescent adhesive layer; the side of the fluorescent adhesive layer facing away from the first light-emitting unit and the second light-emitting unit is configured as an outward convex structure.

[0025] According to a second aspect, one embodiment provides a method for controlling a supplementary light, which is used to control the aforementioned supplementary light, comprising the following steps:

[0026] Independently control the on / off state or operating current of each of the first and / or second light-emitting units;

[0027] The number of light-emitting units activated is adjusted by executing the independent control steps according to the target illumination distance, wherein the greater the illumination distance, the fewer light-emitting units are activated;

[0028] The luminous power of the corresponding light-emitting unit is adjusted by adjusting the operating current according to the ambient illuminance and / or irradiation distance.

[0029] According to a third aspect, one embodiment provides a supplementary lighting camera, comprising:

[0030] Camera module;

[0031] and

[0032] Such as the fill light mentioned above.

[0033] In another embodiment, the fill light is communicatively connected to the camera module and configured to perform the control method described above.

[0034] According to the above embodiments, the supplementary light and supplementary camera, through the coordinated design of the limited "nine-square matrix arrangement" and "the power of the first light-emitting unit is greater than that of the second light-emitting unit", enable the supplementary light to naturally form an illumination pattern with strong light in the middle and weak light on both sides on the illumination surface, which fundamentally solves the problem of uneven brightness such as "near bright and far dark, center bright and surrounding dark".

[0035] According to the control method of the supplementary lighting in the above embodiments, the switching and brightness of each light-emitting unit can be independently controlled through a defined control method. This allows for dynamic adjustment of the number of light-emitting units activated based on the target illumination distance, or precise adjustment of the supplementary lighting intensity in each area based on ambient illuminance. This enables the supplementary lighting of the present invention to intelligently adapt to different road scenarios and monitoring needs, achieving flexible and precise control of the illumination area.

[0036] Compared to using two supplementary lights (one for near and one for far-field illumination), this invention achieves superior lighting effects with only one supplementary light device, significantly reducing hardware costs and system complexity. Furthermore, thanks to the flexible control method described above, ineffective full-area full-load illumination is avoided; the required illuminance is provided only at the necessary time and in the necessary areas, thereby significantly reducing power consumption and solving the problem of energy waste. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the light source arrangement for another type of existing supplementary lighting;

[0038] Figure 2 This is a schematic diagram of the light source arrangement of the supplementary lighting in this application;

[0039] Figure 3 This is a cross-sectional schematic diagram of a supplementary light in one embodiment;

[0040] Figure 4 This is a first schematic diagram of a supplementary light lamp providing supplementary lighting to an illuminated surface in one embodiment;

[0041] Figure 5 This is a cross-sectional schematic diagram of the supplementary lighting reflector structure in another embodiment;

[0042] Figure 6 A cross-sectional schematic diagram of another embodiment of the supplementary lighting lamp;

[0043] Figure 7 A cross-sectional schematic diagram of another embodiment of the supplementary lighting lamp;

[0044] Figure 8 A cross-sectional schematic diagram of another embodiment of the supplementary lighting lamp;

[0045] Figure 9 A cross-sectional schematic diagram of the fill light lens in another embodiment;

[0046] Figure 10 This is a control logic diagram of a method for controlling a supplementary light in one embodiment;

[0047] Figure 11 This is a second schematic diagram of a supplementary light lamp providing supplementary illumination to an irradiated surface in one embodiment;

[0048] Figure 12This is a third schematic diagram of a supplementary light lamp illuminating an illuminated surface in one embodiment.

[0049] Figure label:

[0050] 10. Fill lights;

[0051] 11. First light-emitting unit; 111. First light-emitting chip; 112. First reflective cavity;

[0052] 12. Second light-emitting unit; 121. Second light-emitting chip; 122. Second reflective cavity;

[0053] 13. Lens; 131. Optical component; 132. Support component; 133. First freeform surface; 134. Second freeform surface;

[0054] 14. Light-emitting cavity;

[0055] 15. Reflective structure; 151. Reflective material; 153. Cavity structure;

[0056] 100. Substrate;

[0057] 1000, Reflective surface;

[0058] 150. Internal lens;

[0059] 160. Fluorescent adhesive layer;

[0060] 200. Light outlet;

[0061] 300, bracket;

[0062] 400. Irradiated surface. Detailed Implementation

[0063] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0064] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0065] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0066] Road traffic monitoring systems require supplemental lighting to ensure the clarity of the monitored images at night or in low-light environments. Traditional supplemental lights generally suffer from uneven illumination, specifically, areas that are too bright in the foreground and too dark in the background, or areas that are too bright in the center and too dark around the edges. However, current technologies typically only increase the overall brightness of the monitored area, resulting in significant power waste, and there are still some scenarios where localized supplemental lighting is insufficient while other areas are excessively bright.

[0067] One existing solution is to use high beams and low beams separately for illumination of distant and near scenes. Undoubtedly, installing two lighting systems will increase costs, and the consistency of brightness across the entire area remains poor.

[0068] like Figure 1 The diagram shows a schematic of the light source arrangement of another existing supplementary light 10. This supplementary light 10 includes a substrate 100, several light-emitting units, and a lens 13. The light-emitting units are arranged in a matrix on the substrate 100. Each light-emitting unit includes a light-emitting chip and a reflective cavity. This solution only requires one supplementary light 10, but it necessitates the use of luminaires with a large number of LED array light sources or laser array light sources for supplementary lighting. While it allows for global monitoring and flexible control of the switching of point light sources in each monitored area, the use of numerous LED array light sources or laser array light sources results in a large number of metal traces between the light-emitting units. This leads to uneven brightness due to crosstalk between the light-emitting units, or large gaps between them due to the numerous metal traces, creating numerous blind spots or dark areas. Since the light beam emitted by the light-emitting units expands from near to far, the area of ​​blind spots or dark areas in the road traffic monitoring illumination also continuously expands. Moreover, the large number of light-emitting units in this solution results in a high cost.

[0069] Therefore, the existing supplementary lighting solutions for road traffic monitoring cameras have poor supplementary lighting effects and cannot achieve the ideal monitoring effect.

[0070] Therefore, this application discloses a supplementary light, a control method for the supplementary light, and a supplementary light camera, which can simultaneously solve the problems of uneven brightness, eliminate blind spots, achieve flexible adjustment, and reduce costs.

[0071] Example 1: Please refer to Figure 2 , Figure 3 and Figure 4 This embodiment provides a supplementary light, including: a substrate 100; three first light-emitting units 11 arranged in a row on the substrate 100, the three first light-emitting units 11 forming three first irradiation areas A1-A3 on an irradiation surface 400; six second light-emitting units 12, evenly arranged in two rows on the substrate 100, the two rows of second light-emitting units 12 respectively arranged on both sides of the first light-emitting units 11, together forming a three-row, three-column nine-square grid matrix; the six second light-emitting units 12 forming six second irradiation areas B1-B6 on the irradiation surface 400; so that the second irradiation areas are evenly distributed on the first light-emitting unit 11. The first illuminator 11 and the second illuminator 12 are positioned on the light-emitting side of the illuminator 11 and the second illuminator 12, and are used to focus, shape, collimate, and emit the light beam. The rated illuminant power of the first illuminator 11 is greater than that of the second illuminator 12, so that the first illuminator A1-A3 is formed by the first illuminator 11 and corresponds to the distant view and / or the middle area of ​​the illuminator 400, and the second illuminator B1-B6 is formed by the second illuminator 12 and corresponds to the near view and / or the two sides of the illuminator 400, so as to achieve supplementary lighting for the distant view and the near view, and the middle and sides of the road.

[0072] Please refer to Figure 2 and Figure 3 The substrate 100 serves as the mounting carrier for the light-emitting unit, providing stable support for each component and ensuring the arrangement accuracy of the light-emitting unit. Specifically, it is set as a rectangle, preferably a square structure.

[0073] Please refer to Figure 2 , Figure 3 and Figure 4 Three first light-emitting units 11 are arranged in a row in the middle of the substrate 100, and six second light-emitting units 12 are divided into two rows, arranged on both sides of the first light-emitting units 11, with three units in each row, forming a three-row, three-column nine-square grid matrix layout. This layout allows the supplementary light lamp 10 to naturally form an illumination pattern on the illumination surface 400 that is strong in the middle, weak on both sides, and fully covered.

[0074] In this embodiment, please refer to Figure 4The first light-emitting unit 11 adopts a high-power design, with a rated luminous power significantly greater than that of the second light-emitting unit 12. For example, the operating current of the first light-emitting unit 11 can be set to 10mA, while the operating current of the second light-emitting unit 12 can be set to 1mA, allowing them to adapt to different supplementary lighting scenarios. This power differentiation design enables the first illumination area A1-A3 formed by the first light-emitting unit 11 to cover a greater distance and a larger area, making it particularly suitable for supplementary lighting in the middle of the road and for distant views. Meanwhile, the second illumination area B1-B6 formed by the second light-emitting unit 12 is evenly distributed on both sides of the first illumination area A1-A3, responsible for supplementary lighting for near views and the sides of the road. Through this layout and power configuration, the supplementary light 10 can simultaneously meet the supplementary lighting needs for both near and distant views without adding additional lighting fixtures, while ensuring the brightness uniformity of the entire illumination surface 400.

[0075] Please refer to Figure 4 When the luminous power of the first light-emitting chip 111 is greater than that of the second light-emitting chip, A1, A2, and A3 are located in the middle area of ​​the road. The illumination area 400 and distance of a single area in these areas can be greater than the illumination area 400 and distance of a single area in B1, B2, B3, B4, B5, and B6 located on both sides. At the same time, through reasonable optical design, the brightness of each area can be kept basically consistent, so that the supplementary light 10 can still maintain uniform brightness in each area on the illumination surface 400 of the distant and near scenes, and the whole area has good brightness uniformity.

[0076] Please refer to Figure 3 Lens 13 is positioned on the light-emitting side of all light-emitting units. The coverage area of ​​lens 13 completely covers the nine light-emitting units. It is used to perform "focusing, shaping and collimation" processing on the light beam emitted by the light-emitting units, reduce beam divergence, ensure that the beam can accurately cover the target monitoring area, and improve the brightness uniformity of the beam.

[0077] This embodiment, through the coordinated design of a limited "nine-square matrix arrangement" and "the power of the first light-emitting unit 11 is greater than that of the second light-emitting unit 12", eliminates the need for additional high beams and low beams. A single supplementary light 10 can cover the middle (distant view) and both sides (near view) of the road. The high power characteristics of the first light-emitting unit 11 ensure sufficient light intensity in the distant view area, while the low power characteristics of the second light-emitting unit 12 are adapted to the needs of the near view. This allows the supplementary light 10 to naturally form an illumination pattern with strong light in the middle and weak light on both sides on the illumination surface 400, thus solving the problem of uneven brightness, such as "bright near and dark far, bright center and dark periphery".

[0078] For further details, please refer to... Figure 3 and Figure 5The first light-emitting unit 11 and the second light-emitting unit 12 are both provided with a reflective structure 15 for converging light. The reflective structure 15 forms a light outlet 200 above the first light-emitting unit 11 and the second light-emitting unit 12. Adjacent reflective structures 15 are closely adjacent to each other or share the reflective structure 15 at the light outlet 200 to eliminate the illumination blind zone between the light outlets 200.

[0079] In other embodiments, the fill light 10 can also be configured as a fill light 10 with four or other numbers of light-emitting units, which can also illuminate the distant area and the near area respectively. However, according to tests, its effect is not as large as the illumination area 400 and the illumination distance of the nine-square fill light 10, and it is not as flexible and controllable as the nine-square fill light 10 in terms of the illumination area.

[0080] In this embodiment, please refer to Figure 3 and Figure 5 The adjacent reflective structures 15 are designed to be closely adjacent at the light outlet 200, or they can directly share the same reflective structure 15, thereby completely eliminating the physical gaps caused by the spacing between light-emitting units in traditional supplementary lights 10. This seamless design ensures that the beam emitted from the supplementary light 10 forms a continuous and complete illumination surface 400, fundamentally solving the blind spot problem.

[0081] Please refer to Figure 3 In a preferred embodiment, a reflective structure 15 is disposed around the first light-emitting unit 11 and the second light-emitting unit 12, and the reflective structure 15 is formed by filling with a reflective material 151. The reflective material 151 forms a first reflective cavity 112 and a second reflective cavity 122 around the first light-emitting unit 11 and the second light-emitting unit 12. A light-emitting port 200 is disposed at the opening of the first reflective cavity 112 and the second reflective cavity 122. Its size and shape can be designed according to requirements to optimize the beam emission characteristics. The inner walls of the first reflective cavity 112 and the second reflective cavity 122 form a reflective surface 1000, thereby efficiently reflecting the light towards the light-emitting port 200.

[0082] In this embodiment, the reflective material 151 has a reflective effect. In other embodiments, when the reflective material 151 is used to reduce the physical gap between the light-emitting units but does not have a reflective effect, a reflective film with a reflective effect is correspondingly provided on the reflective surface 1000.

[0083] Please refer to Figure 5In another embodiment, the reflective structure 15 is formed by curing a light-transmitting adhesive. Specifically, the reflective structure 15 is disposed on the first light-emitting unit 11 and the second light-emitting unit 12, with the light-transmitting adhesive directly covering the surface of the light-emitting unit. A cavity structure 153 is formed around the periphery of the light-transmitting adhesive, and the interface between the light-transmitting adhesive and the cavity structure 153 forms a reflective surface 1000. By controlling the refractive index of the light-transmitting adhesive and the interface characteristics of the cavity structure 153, total internal reflection can be achieved, thereby converging the light beam. This method not only simplifies the manufacturing process but also provides better heat dissipation performance.

[0084] Furthermore, to further improve beam quality, please refer to... Figure 6 An inner lens 150 can be added at the light exit port 200. The inner lens 150 is usually made of optical-grade transparent material, and its curved surface is calculated to perform secondary shaping on the light beam emitted from the reflecting cavity, eliminating possible unevenness of the light spot and ensuring that the final irradiated area has a clear boundary and uniform brightness distribution.

[0085] Furthermore, in terms of spectral configuration, this embodiment configures the first light-emitting unit 11 to emit infrared light and the second light-emitting unit 12 to emit white light. This configuration fully utilizes the characteristic that infrared light has low attenuation during long-distance transmission, enabling effective supplementary lighting in the central region over a longer distance; while the white light on both sides ensures the color image quality in the near-field region. In addition, the infrared light supplementary lighting in the center will not cause glare interference to the driver, improving road driving safety.

[0086] Furthermore, regarding the packaging of the light-emitting unit, please refer to... Figure 7 and Figure 8 A phosphor layer 160 can be applied to the surfaces of the first light-emitting unit 11 and the second light-emitting unit 12, and the phosphor layer 160 is configured with an outward convex structure on the side facing away from the first light-emitting unit 11 and the second light-emitting unit 12. The phosphor layer 160 not only filters stray light and protects the chip, but its special outward convex structure design also provides additional light-gathering effect, reduces lateral light loss, and improves light energy utilization.

[0087] For further details, please refer to... Figure 9The lens 13 includes an optical part 131 and a support part 132. The lens 13 is configured as a freeform surface lens 13, including a first freeform surface 133 and a second freeform surface 134 disposed opposite to each other. The first freeform surface 133 is located on the side closer to the first light-emitting unit 11 and the second light-emitting unit 12, and the curvature of the second freeform surface 134 is greater than the curvature of the first freeform surface 133, so as to perform spot shaping and homogenization processing on the light beam. The support part 132 is disposed around the first light-emitting unit 11 and the second light-emitting unit 12, and one side of the support part 132 is connected to the substrate 100, and the other side is connected to the optical part 131, so as to form a light-emitting cavity 14 between the optical part 131 and the substrate 100.

[0088] In this embodiment, the first freeform surface 133 is located near the light-emitting unit and is used for preliminary beam shaping; the second freeform surface 134 is located away from the light-emitting unit and is a convex surface that corresponds to each light-emitting unit. Its curvature is greater than that of the first freeform surface 133, which can perform "spot energy homogenization" processing on the beam to ensure that the brightness of the spot formed by each light-emitting unit is consistent.

[0089] Example 2: Please refer to Figure 2 , Figure 4 , Figure 10 , Figure 11 and Figure 12 This embodiment provides a method for controlling a fill light, which is used to control the fill light 10 mentioned above, and includes the following steps:

[0090] Independent control: Independently control the on / off state or operating current of each first light-emitting unit 11 and / or second light-emitting unit 12.

[0091] The core of the control method lies in the independent control of each first light-emitting unit 11 and / or second light-emitting unit 12. Specifically, the control module can independently control the on / off state of each first light-emitting unit 11 and second light-emitting unit 12, and can finely adjust its operating current.

[0092] Dynamic switching control based on target illumination distance: The number of light-emitting units turned on is adjusted by executing independent control steps according to the target illumination distance. The farther the illumination distance, the fewer light-emitting units are turned on. Figure 4 and Figure 11 As shown, since the distances from the supplementary light 10 to regions A1, B1, B4, A2, B2, B5, and A3, B3, B6 gradually increase, the illumination area of ​​a single light-emitting unit will gradually increase.

[0093] The control module will first detect the distance information of the target area that needs supplemental lighting.

[0094] If the target area is relatively close, such as Figure 11 As shown, the beam coverage area is relatively small at this time, and the system will light up all nine light-emitting units to ensure complete coverage of the near-field area and avoid dark areas.

[0095] As the distance to the target area increases, the illumination spot of a single luminescent unit will expand accordingly. For example... Figure 12 As shown, when a more distant area needs to be illuminated, the coverage area of ​​each light spot increases, eliminating the need to illuminate all light-emitting units to cover the entire target area. The system gradually reduces the number of illuminated light-emitting units; for example, only seven units may be illuminated at a medium distance, and so on. When illuminating extremely distant areas, the number of illuminated units can be further reduced. This dynamic "on-demand illumination" strategy fundamentally avoids the enormous power waste caused by traditional supplemental lighting 10 operating at full capacity across the entire area, achieving significant energy savings.

[0096] Brightness adjustment based on environmental conditions and / or illumination distance: The luminous power of the corresponding light-emitting unit is adjusted by adjusting the operating current according to the ambient illuminance and / or illumination distance.

[0097] The control module adjusts the operating current of each light-emitting unit in real time according to the ambient illuminance and / or irradiation distance.

[0098] In areas with low ambient light (such as at night or in tunnels) and / or in areas with long illumination distances, the operating power of the light-emitting unit is increased accordingly to enhance the supplementary lighting effect. For areas with long illumination distances, the system will appropriately increase the operating power of its light-emitting unit to compensate for the attenuation of light during long-distance transmission. For example, the current of the first light-emitting unit 11 is adjusted to 10mA-15mA (to enhance the intensity of far-distance infrared light), and the current of the second light-emitting unit 12 is adjusted to 1mA-2mA (to enhance the intensity of near-distance white light) to ensure sufficient brightness in the target area.

[0099] In areas with bright ambient light (such as on cloudy days or at dusk) and / or in areas with close illumination distances, the power should be appropriately reduced. For example, when the ambient light in a certain area is bright, the operating current of the corresponding unit should be reduced to avoid overexposure and energy waste. For areas with close illumination distances, the power should be appropriately reduced to prevent overexposure.

[0100] In addition, differentiated adjustments are made for the different types of light sources: the infrared light of the first light-emitting unit 11 focuses on long-distance power adjustment to ensure that the monitoring requirements are still met after the light intensity attenuates at a distance; the white light of the second light-emitting unit 12 focuses on short-distance power adjustment to ensure color reproduction while avoiding glare.

[0101] In practical applications, the two control steps described above typically work in tandem. The control module of the supplementary lighting lamp 10 receives data, comprehensively assesses the target illumination distance and ambient illuminance, and then automatically executes the corresponding switching and dimming commands. This intelligent control method makes the supplementary lighting lamp 10 of this invention not merely a passive lighting device, but an intelligent system capable of actively adapting to complex road environments and achieving precise and efficient supplementary lighting.

[0102] This embodiment, through a defined control method, allows for independent control of the on / off state and brightness of each light-emitting unit. This enables dynamic adjustment of the number of activated light-emitting units based on the target illumination distance, or precise adjustment of the supplementary lighting intensity in each area based on ambient illuminance. This dual adjustment mechanism ensures that the brightness of each area in the entire monitoring screen remains optimal regardless of the environment and distance. This allows the supplementary lighting 10 of this invention to intelligently adapt to different road scenarios and monitoring needs, achieving flexible and precise control of the illumination area and effectively solving the problems of insufficient or excessive local supplementary lighting.

[0103] Example 3: Please refer to Figure 4 , Figure 11 and Figure 12 This embodiment provides a supplementary lighting camera, including a camera module and the aforementioned supplementary light 10, both integrated in the same housing. The lens of the camera module and the lens 13 of the supplementary light 10 face the same direction. The supplementary light 10 is mounted on a bracket 300 of the illumination surface 400 (e.g., road, highway). The supplementary lighting camera is equipped with a control module. The supplementary light 10 is communicatively connected to the camera module and controlled in conjunction with the control module. The camera module can be equipped with an ambient light sensor and a distance sensor, etc. The supplementary lighting camera is configured to execute the aforementioned control method.

[0104] Please refer to Figure 11 In this embodiment, the first illumination area of ​​the supplementary light 10 is A1, A2, A3, and the second illumination area is B1, B2, B3, B4, B5, B6. A1, A2, A3 are located in the middle area of ​​the illumination surface 400, and B1, B2, B3 and B4, B5, B6 are located on both sides of the three areas A1, A2, A3 respectively.

[0105] In this embodiment, please refer to Figure 10The control module establishes an independent circuit connection with each first light-emitting unit 11 and second light-emitting unit 12, supporting individual control of the "on / off" state and "operating current" of a single light-emitting unit. That is, it is not necessary to turn on all light-emitting units; light-emitting units at specific locations (such as the first light-emitting unit 11 in the middle of the road and the second light-emitting units 12 on both sides) can be selected according to needs. Furthermore, the current of each turned-on light-emitting unit can be adjusted individually to change the luminous power. As a result, the nine illumination areas of the supplementary light lamps 10A1, A2, A3, B1, B2, B3, B4, B5, and B6 of this application are not fixed on the illumination surface 400, but can be flexibly adjusted in terms of the distance between these nine illumination areas and the supplementary light lamps 10.

[0106] In this embodiment, the camera module can collect brightness information and target area location information of the monitoring screen in real time and transmit them to the control module. The control module adjusts the working state of the supplementary light 10 according to this information, such as the number of units turned on and the current magnitude, to achieve "linkage between supplementary lighting and monitoring".

[0107] The supplementary lighting camera is configured to execute the aforementioned control method. Specifically, the camera module can transmit the acquired distance and ambient brightness information to the control module of the supplementary lighting lamp 10 in real time. The control module then automatically adjusts the supplementary lighting strategy based on this information, achieving an intelligent supplementary lighting effect. This integrated design allows the supplementary lighting camera to adapt to various complex road monitoring scenarios. Whether on urban roads, highways, or rural roads, this supplementary lighting camera provides uniform, blind-spot-free, and energy-efficient supplementary lighting, significantly improving the performance and reliability of the monitoring system.

[0108] Compared to the approach of using two supplementary lights 10 (one for near and one for far-field illumination), this invention achieves superior supplementary lighting effects with only one supplementary light 10 device, significantly reducing hardware costs and system complexity. Furthermore, thanks to the flexible control method described above, ineffective full-area full-load supplementary lighting is avoided, providing the required illuminance only at the necessary time and in the necessary areas, thereby greatly reducing power consumption and solving the problem of energy waste.

[0109] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. A supplementary light, characterized in that, include: substrate(100); Three first light-emitting units (11) are arranged in a row on the substrate (100), and the three first light-emitting units (11) are used to form three first irradiation areas A1-A3 on the irradiation surface; Six second light-emitting units (12) are arranged in two columns on the substrate (100). The two columns of second light-emitting units (12) are arranged on both sides of the first light-emitting unit (11) to form a three-row, three-column nine-square grid matrix. The six second light-emitting units (12) are used to form six second irradiation areas B1-B6 on the irradiation surface, so that the second irradiation areas are evenly distributed on both sides of the first irradiation area; The first light-emitting unit (11) and the second light-emitting unit (12) are both provided with a reflective structure (15) for converging light, and the reflective structure (15) forms a light outlet (200) above the first light-emitting unit (11) and the second light-emitting unit (12). The adjacent reflective structures (15) are closely adjacent to or share the reflective structure (15) at the light outlet (200) to eliminate the illumination blind zone between the light outlets (200); as well as Lens (13) is disposed on the light-emitting side of the first light-emitting unit (11) and the second light-emitting unit (12), and is used to focus, shape and collimate the light beam before it is emitted; and the lens (13) is used to guide the light beam from the first light-emitting unit (11) mainly to the distant area and guide the light beam from the second light-emitting unit (12) mainly to the near area. Wherein, the rated luminous power of the first luminous unit (11) is greater than the rated luminous power of the second luminous unit (12), so that the first irradiation area A1-A3 is formed by the first luminous unit (11) and corresponds to the middle area of ​​the distant view and / or the irradiation surface, and the second irradiation area B1-B6 is formed by the second luminous unit (12) and corresponds to the near view and / or the two sides of the irradiation surface, so as to achieve supplementary lighting for the distant view and near view, the middle of the road and the two sides of the road.

2. The supplementary lighting as described in claim 1, characterized in that, The reflective structure (15) is disposed on the periphery of the first light-emitting unit (11) and the second light-emitting unit (12), and the reflective structure (15) is formed by filling with reflective material (151); The reflective material (151) forms a first reflective cavity (112) and a second reflective cavity (122) around the first light-emitting unit (11) and the second light-emitting unit (12). The light-emitting port (200) is disposed at the opening of the first reflective cavity (112) and the second reflective cavity (122). The inner walls of the first reflective cavity (112) and the second reflective cavity (122) form a reflective surface (1000).

3. The supplementary lighting as described in claim 1, characterized in that, The reflective structure (15) is disposed on the first light-emitting unit (11) and the second light-emitting unit (12), and the reflective structure (15) is formed by curing the light-transmitting adhesive; the periphery of the light-transmitting adhesive is configured as a cavity structure (153), and the interface between the light-transmitting adhesive and the cavity structure (153) forms a reflective surface (1000).

4. The supplementary lighting as described in claim 1, characterized in that, An inner lens (150) is provided at the light outlet (200).

5. The supplementary lighting as described in claim 1, characterized in that, The first light-emitting unit (11) is configured to emit infrared light, and the second light-emitting unit (12) is configured to emit white light.

6. The supplementary lighting as described in claim 1, characterized in that, The surfaces of the first light-emitting unit (11) and the second light-emitting unit (12) are covered with a fluorescent adhesive layer; the side of the fluorescent adhesive layer away from the first light-emitting unit (11) and the second light-emitting unit (12) is configured as an outward convex structure.

7. A method for controlling a fill light, used to control a fill light as described in any one of claims 1-6, characterized in that, Includes the following steps: Independently control the on / off state or operating current of each of the first light-emitting units (11) and / or the second light-emitting units (12); The number of light-emitting units activated is adjusted by executing the independent control steps according to the target illumination distance, wherein the greater the illumination distance, the fewer light-emitting units are activated; The luminous power of the corresponding light-emitting unit is adjusted by adjusting the operating current according to the ambient illuminance and / or irradiation distance.

8. A supplementary lighting camera, characterized in that, include: Camera module; and The fill light as described in any one of claims 1-6.

9. The supplementary lighting camera as described in claim 8, characterized in that, The fill light (10) is communicatively connected to the camera module and is configured to perform the control method as described in claim 7.

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