Anti-glare downlight
Patent Information
- Application Number
- CN202511104669.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2045-08-07
AI Technical Summary
[0003]常见的防眩光筒灯的遮光结构为增加遮光角度或使用磨砂透镜来减少眩光,无法根据环境光照需求或用户偏好调节,难以适应不同场景的光线分布要求,不仅影响照明舒适度,还可能造成不必要的能量浪费
1、本发明通过加设的光效推进器、菲涅尔镜片及遮光罩的协同作用,实现了高效防眩与光效优化的平衡,光效推进器有效提升光源利用率,减少能量损耗,而菲涅尔镜片可将光线柔和聚焦并均匀扩散,避免直射光造成的视觉不适,最后加设的遮光罩进一步遮挡残余直射光,从物理层面降低眩光风险,同时可通过驱动件带动遮光板的转动,从而可改变遮光板的倾斜角度,使得可根据环境光照需求或用户偏好自动调节挡板角度,动态适应办公、家居、商业等不同场景的光线分布要求,不仅提升了照明舒适度,还通过精准控光减少了不必要的能量浪费,兼顾节能与功能性需求;
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Figure CN120845710B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of lighting equipment applications, and in particular to an anti-glare downlight. Background Technology
[0002] With the continuous development of lighting technology, people's needs for indoor lighting are no longer limited to basic brightness requirements, but also place greater emphasis on lighting comfort and energy efficiency. Glare is one of the important factors affecting lighting comfort; excessive glare can lead to visual fatigue and even health problems.
[0003] Common anti-glare downlights reduce glare by increasing the shading angle or using frosted lenses, but these methods cannot be adjusted according to ambient lighting requirements or user preferences. This makes them unsuitable for adapting to different lighting distribution requirements in various scenarios, impacting lighting comfort and potentially causing unnecessary energy waste. Furthermore, existing downlights lack the ability to comprehensively capture and intelligently control ambient lighting conditions, human activity, light quality parameters, and human dynamic information. They cannot achieve dynamic matching of lighting parameters to scene requirements, resulting in poor adaptability and failing to meet the operational requirements of lighting equipment applications. Therefore, an anti-glare downlight is proposed. Summary of the Invention
[0004] This invention provides the following technical solution: an anti-glare downlight, comprising: The outer shell has a light-effect thruster installed on its mounting surface. The mounting end of the light-effect thruster is connected to a light shield. The outside of the light shield is fitted with a first fitting. The outer shell provides support and protection for the overall structure. The light-effect thruster can improve the light efficiency of the light source and reduce energy loss. The light shield can block direct light to reduce glare. The first fitting fixes the light shield to ensure structural stability. The first connector is installed on both sides of the outside of the first assembly. The first connector has a light shield hinged inside. The light effect actuator has a light source generator installed inside. The light shield has a Fresnel lens inserted inside. The first connector provides a mounting base for the light shield. The hinged light shield can be flexibly adjusted to adapt to different scenes. The light source generator provides illumination light. The Fresnel lens can softly focus and diffuse light to avoid visual discomfort caused by direct light. The second connector is installed outside the first connector. The outer end of the second connector is connected to a driving component. The output end of the driving component is connected to the rotating shaft of the light shield located inside the first connector. The second connector fixes the driving component. The driving component drives the light shield to rotate through the rotating shaft, thereby realizing the automatic adjustment of the light shielding angle and meeting the anti-glare requirements in different environments. The second assembly is installed on the upper side inside the first assembly. The first assembly is equipped with an ambient light sensor, a human infrared sensor, a multispectral light quality sensor, and a human posture and eye tracking sensor in sequence on the outer periphery. The second assembly enhances the structural integration, and the various sensors can capture environmental and human information from all directions, providing accurate data for adjusting lighting parameters. The main controller, integrated inside the housing, is connected via a data cable to an ambient light sensor, a human infrared sensor, a multispectral light quality sensor, and a human posture and gaze tracking sensor.
[0005] Preferably, the Fresnel lens is made of PMMA material, and the number of Fresnel lenses is 2-4 layers. The thickness of a single Fresnel lens is 2-4mm. The Fresnel lens uses PMMA material and is set as a multi-layer structure. PMMA material has excellent light transmittance, which can reduce light loss. The multi-layer design can enhance the light focusing and diffusion effect, make the light distribution more uniform, and improve the lighting comfort. At the same time, the thinner single-layer thickness helps to control the overall size of the lamp.
[0006] Preferably, the light shield is funnel-shaped and made of matte black aluminum alloy. The angle of the inclined surface of the light shield is set at 45-60 degrees. The funnel-shaped light shield is made of matte black aluminum alloy. The funnel shape can guide the direction of light projection, and the matte black material can absorb stray light and reduce reflected glare. The aluminum alloy material has both structural stability and heat dissipation. The inclined surface with a specific angle further optimizes the light shielding range and enhances the anti-glare effect.
[0007] Preferably, the upper surface of the second assembly is provided with a third connector on both sides, and the inner side of the third connector is provided with an elastic component through a pivot. The outer end of the elastic component is connected with a snap-fit component. The snap-fit structure facilitates quick installation and disassembly, and improves installation and maintenance efficiency.
[0008] Preferably, the mounting surface of the light effect thruster is circumferentially fitted with a mating component, and grooves are provided on the lower inner side of the outer shell at positions corresponding to the mating component. Fasteners are screwed into the grooves and the interior of the mating component. The light effect thruster is connected to the outer shell through the mating component, the grooves, and the fasteners. This structural design ensures that the light effect thruster is firmly installed, avoids displacement caused by vibration during use that affects the light effect, and facilitates disassembly and maintenance, ensuring the fitting accuracy of each component and maintaining stable lighting performance.
[0009] Preferably, the light-shielding plate is made of a prismatic plate, and both the upper and lower surfaces of the light-shielding plate are covered with a PET anti-reflective high-transmittance film. Both the upper and lower surfaces of the light-shielding plate are provided with a microprism structure. The light-shielding plate made of prismatic plate, together with the PET anti-reflective high-transmittance film and the microprism structure, can effectively block direct light and reduce glare, and can also improve light transmittance and avoid light efficiency loss. The microprism structure can further optimize the light diffusion direction, making the light softer and improving the comfort and uniformity of lighting.
[0010] Preferably, heat dissipation fins are inserted circumferentially on the outer side of the housing, and the number of heat dissipation fins is 20-40 sets. The surface of each heat dissipation fin is covered with an anodized layer. The heat dissipation fins and the anodized layer on the surface of the housing can increase the heat dissipation area and improve the heat dissipation efficiency, accelerate the dissipation of heat inside the lamp, avoid high temperature affecting the performance of the light source and electronic components, extend the service life of the lamp, and ensure the stability of the lighting effect.
[0011] Preferably, the outer periphery of the light source generator is fitted with an annular heat sink made of oxygen-free copper. The outer surface of the annular heat sink is uniformly distributed with needle-shaped heat sinks. A phase change thermal pad is sandwiched between the bottom of the heat dissipation bracket and the light effect actuator. The annular heat sink on the outer periphery of the light source generator is made of oxygen-free copper. Together with the needle-shaped heat sinks and the phase change thermal pad, the heat generated by the light source during operation can be quickly dissipated, preventing the light source from decaying or being damaged due to overheating, ensuring stable luminous efficiency of the light source, and extending its service life.
[0012] Preferably, the main controller is surrounded by an electromagnetic shielding cover made of tinplate. The inner wall of the electromagnetic shielding cover is lined with wave-absorbing cotton. The electromagnetic shielding cover is connected to the inner wall of the outer shell by an insulating pad. The electromagnetic shielding cover, wave-absorbing cotton, and insulating pad around the main controller work together to effectively block external electromagnetic interference, prevent the main controller from being affected, ensure the accuracy of sensor data transmission and control command execution, and improve safety during use due to the insulation design.
[0013] Preferably, a maintenance cover is attached to the bottom edge of the housing via a snap fastener. The inner side of the maintenance cover is provided with a sealing ring, and the surface of the maintenance cover has a strip-shaped ventilation hole. A dustproof mesh is provided inside the strip-shaped ventilation hole. The maintenance cover at the bottom of the housing is connected by a snap fastener. Together with the sealing ring and the dustproof mesh, it facilitates quick opening and maintenance of internal components, prevents dust and moisture from entering the lamp, protects electronic components, and the ventilation hole helps dissipate heat and maintain a stable internal environment of the lamp.
[0014] In summary, compared with the prior art, the present invention provides an anti-glare downlight with the following beneficial effects: 1. This invention achieves a balance between high-efficiency anti-glare and optimized light effect through the synergistic effect of the added light effect thruster, Fresnel lens, and light shield. The light effect thruster effectively improves the utilization rate of the light source and reduces energy loss, while the Fresnel lens can softly focus and evenly diffuse the light, avoiding visual discomfort caused by direct light. Finally, the added light shield further blocks residual direct light, reducing the risk of glare from a physical perspective. At the same time, the light shield can be rotated by the drive component, thereby changing the tilt angle of the light shield. This allows the angle of the shield to be automatically adjusted according to the ambient light requirements or user preferences, dynamically adapting to the light distribution requirements of different scenarios such as offices, homes, and commercial spaces. This not only improves lighting comfort but also reduces unnecessary energy waste through precise light control, taking into account both energy saving and functional requirements. 2. By adding an ambient light sensor, a human infrared sensor, a multispectral light quality sensor, and a human posture and gaze tracking sensor, this invention can capture ambient light status, human activity, light quality parameters, and human dynamic information in all aspects. This allows the main controller to accurately control the emission color and intensity of the light source generator based on this multidimensional data, while flexibly adjusting the tilt angle of the light shield driven by the external drive component of the light shield, thereby achieving dynamic matching of lighting parameters with scene requirements. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the present invention.
[0016] Figure 2 This is a schematic diagram of the assembly of the outer shell and the light-effect thruster structure of the present invention.
[0017] Figure 3 This is a schematic diagram of the assembly structure of the second assembly and the first assembly of the present invention.
[0018] Figure 4 This is a schematic diagram of the light-shielding plate structure of the present invention.
[0019] Figure 5 This is a cross-sectional schematic diagram of the light-effect propulsion device and light shield structure of the present invention.
[0020] Figure 6 This is a schematic diagram of the structure of the first assembly of the present invention.
[0021] Figure 7 This is a schematic diagram of the structure of the first connector and the second connector of the present invention.
[0022] Explanation of reference numerals in the attached figures: 1. Housing; 2. Light-effect thruster; 3. Light shield; 4. First assembly; 5. First connector; 6. Light shield; 7. Light source generator; 8. Fresnel lens; 9. Ambient light sensor; 10. Human infrared sensor; 11. Multispectral light quality sensor; 12. Human posture and gaze tracking sensor; 13. Second connector; 14. Drive unit; 15. Second assembly; 16. Third connector; 17. Elastic component; 18. Snap-fit component; 19. Groove; 20. Mating component; 21. Fastener; 22. Heat sink fins. Detailed Implementation
[0023] This invention provides a technical solution: an anti-glare downlight, comprising a housing 1, a light effect actuator 2, a light shield 3, a first assembly 4, a first connector 5, a light shield 6, a light source generator 7, a Fresnel lens 8, an ambient light sensor 9, a human infrared sensor 10, a multispectral light quality sensor 11, a human posture and gaze tracking sensor 12, a second connector 13, a driving component 14, a second assembly 15, a third connector 16, an elastic component 17, a snap-fit component 18, a groove 19, a mating component 20, a fastener 21, and heat dissipation fins 22. Please see Figure 1 A light-effect thruster 2 is mounted on the mounting surface of the outer casing 1, and a light shield 3 is connected to the mounting end of the light-effect thruster 2. Please refer to [link / reference]. Figure 2 The light shield 3 is fitted with a first fitting 4, which is a ring-shaped assembly. The light shield 3 is funnel-shaped and made of matte black aluminum alloy. The angle of the inclined surface of the light shield 3 is set at 45-60 degrees. The funnel-shaped design and matte black aluminum alloy material can effectively guide the direction of light projection and reduce stray light. The matte black surface can absorb excess direct light and reflected light, avoiding glare caused by secondary reflection. The aluminum alloy material has both structural stability and heat dissipation, which can ensure the long-term stability of the shape of the light shield 3 and assist in heat dissipation. The specific range of inclined surface angles can precisely control the light shielding range, effectively preventing glare without affecting the lighting coverage area and improving lighting comfort. The mounting surface of the light effect thruster 2 is circumferentially equipped with a mating part 20. The mating part 20 has a columnar structure. The lower inner side of the outer shell 1 has grooves 19 corresponding to the mating part 20. Fasteners 21, which are bolt structures, are screwed into the grooves 19 and the mating part 20. The light effect thruster 2 is connected to the outer shell 1 through the mating part 20, the grooves 19 and the fasteners 21. This ensures that the light effect thruster 2 is installed in a precise and firm position, avoids displacement due to vibration during operation, and ensures that its relative position with components such as the light source generator 7 and Fresnel lens 8 is stable, maintaining consistent optical performance. The screw-on connection of the fasteners 21 is reliable and easy to disassemble. The corresponding setting of the mating part 20 and the groove 19 can also be positioned during installation, improving assembly efficiency and ensuring stable lighting effect of the lamp. Please see Figure 1 The outer casing 1 is provided with heat dissipation fins 22 inserted around its outer periphery. The number of heat dissipation fins 22 is 20-40 sets. The surface of each heat dissipation fin 22 is covered with an anodized layer. The heat dissipation fins 22 and the anodized layer on the surface of the outer periphery of the casing 1 significantly increase the contact area with the air, accelerate heat exchange, and allow internal heat to dissipate quickly. The uniform distribution of the heat dissipation fins ensures uniform heat dissipation and avoids local heat accumulation that may affect the performance of the components. The anodized layer improves the hardness, wear resistance, and heat radiation capacity of the fins, further improving heat dissipation efficiency and effectively preventing the performance degradation of the light source and electronic components due to high temperature, thus extending the service life of the lamp. A maintenance cover is attached to the bottom edge of the housing 1 via a snap fastener. The inside of the maintenance cover has a sealing ring, and the surface of the maintenance cover has strip-shaped ventilation holes. A dustproof mesh is installed inside the ventilation holes. The maintenance cover at the bottom edge of the housing 1 is connected via a snap fastener for easy and quick opening and closing, providing a convenient passage for the inspection and maintenance of internal components, reducing maintenance time and costs. The inner sealing ring prevents dust and moisture from entering, protecting electronic components and optical parts. The surface strip-shaped ventilation holes assist in heat dissipation, and the internal dustproof mesh filters impurities, preventing accumulation that could affect component operation, extending the lamp's lifespan, and reducing maintenance frequency. Please see Figure 4 and Figure 5The first connector 5 is installed on both sides of the outside of the first assembly 4. The first connector 5 is an L-shaped bracket. A light shield 6 is hinged inside the first connector 5. The light shield 6 is a semi-circular plate structure. The light effect pusher 2 is equipped with a light source generator 7, which is an LED lamp. A Fresnel lens 8 is inserted inside the light shield 3. The Fresnel lens 8 is made of PMMA material. The number of Fresnel lenses 8 is 2-4 layers. The thickness of a single Fresnel lens 8 is 2-4mm. The Fresnel lens 8 is made of PMMA material and has a multi-layer structure. PMMA has excellent light transmittance, which reduces light transmission loss and ensures light efficiency. The multi-layer design optimizes the focusing and diffusion effect through multiple refractions and superpositions of light, making the light projection more uniform and avoiding visual fatigue caused by uneven brightness in some areas. The thinner single-layer thickness helps to control the overall size of the lamp, achieving high-efficiency optical performance while maintaining a thin and light body, improving installation flexibility and applicability. The light-shielding plate 6 is made of a prismatic plate, and both its upper and lower surfaces are covered with a PET anti-reflective high-transmittance film. Both the upper and lower surfaces of the light-shielding plate 6 are equipped with microprism structures. The prismatic plate itself can effectively block direct light and reduce glare; the PET anti-reflective high-transmittance film increases light transmittance and avoids excessive light loss, achieving a balance between anti-glare and light efficiency; the microprism structure refracts and diffuses light again, making the light softer and more uniform, improving lighting comfort. This allows the light-shielding plate 6 to participate in light optimization while blocking light, adapting to different scene requirements. Please see Figure 7 The second connector 13 is installed outside the first connector 5. The second connector 13 is an L-shaped bracket. The outer ends of the second connector 13 are connected to the drive component 14. The drive component 14 is a stepper motor. The output end of the drive component 14 is connected to the rotating shaft of the light shield 6 located inside the first connector 5. Please see Figure 3 The second assembly 15 is installed inside the upper side of the first assembly 4. The second assembly 15 is a ring-shaped plate structure. Please refer to [link / reference]. Figure 6 The first assembly 4 is sequentially equipped with an ambient light sensor 9, a human infrared sensor 10, a multispectral light quality sensor 11, and a human posture and gaze tracking sensor 12 on its outer periphery. Please refer to [link / reference]. Figure 3The second assembly 15 has a third connector 16 on both sides of its upper surface. The third connector 16 is a plate-shaped structure. The inner side of the third connector 16 is inserted with an elastic component 17 through a pivot. The elastic component 17 is a torsion spring. The outer end of the elastic component 17 is connected to a snap-fit component 18, which is a U-shaped metal rod. The third connector 16, the elastic component 17 and the snap-fit component 18 on the second assembly 15 cooperate to provide a stable and flexible connection between the lamp and the mounting base. The third connector 16 is connected to the elastic component 17 through the pivot, so that the snap-fit component 18 has an adjustment margin during installation, which can adapt to dimensional deviations, improve installation convenience, simplify the disassembly and assembly process, and improve installation efficiency and maintenance convenience. The main controller, integrated inside the housing 1, connects to the ambient light sensor 9, human infrared sensor 10, multispectral light quality sensor 11, and human posture and gaze tracking sensor 12 via data cables. The main controller is surrounded by an electromagnetic shielding cover made of tinplate, with absorbent cotton lined to the inner wall. The electromagnetic shielding cover is connected to the inner wall of the housing 1 via insulating pads. The tinplate shielding cover blocks external electromagnetic interference, preventing it from affecting the main controller's operation and ensuring the accuracy of sensor data processing and control command output. The absorbent cotton absorbs internal electromagnetic radiation, enhancing the shielding effect. The insulating pads provide electrical insulation, reducing vibration transmission, protecting the main controller, and ensuring its long-term stable operation. The light source generator 7 is surrounded by an annular heat sink made of oxygen-free copper. The outer surface of the annular heat sink is uniformly distributed with needle-shaped heat sinks. A phase change thermally conductive pad is sandwiched between the bottom of the heat sink bracket and the light effect actuator 2. The annular heat sink around the light source generator 7 is made of oxygen-free copper with needle-shaped heat sinks on its outer surface. A phase change thermally conductive pad is sandwiched between the bottom of the light source generator 7 and the light effect actuator 2. Oxygen-free copper has a high thermal conductivity and can quickly absorb the heat from the light source. The needle-shaped heat sinks increase the heat dissipation area and accelerate heat dissipation. The phase change thermally conductive pad fills the gaps, eliminates contact thermal resistance, ensures efficient heat transfer, controls the temperature of the light source within a reasonable range, avoids light decay, color temperature shift, or shortened lifespan, and ensures stable luminous performance and color quality.
[0024] The specific implementation steps of this solution regarding the ambient light sensor 9, human infrared sensor 10, multispectral light quality sensor 11, and human posture and gaze tracking sensor 12, along with the main controller, are as follows: When the anti-glare downlight is powered on, the ambient light sensor 9, human infrared sensor 10, multispectral light quality sensor 11, and human posture and gaze tracking sensor 12, integrated into the external circumferential region of the first assembly 4, are simultaneously activated and begin to collect their respective environmental and human information in real time. Specifically, the ambient light sensor 9 continuously monitors the surrounding lighting conditions and captures changes in light intensity; the human infrared sensor 10 detects whether there is human activity in the target area and the range of that activity; the multispectral light quality sensor 11 analyzes the spectral composition, color rendering characteristics, and other light quality parameters of the ambient light; and the human posture and gaze tracking sensor 12 identifies the posture (e.g., standing, sitting) and gaze direction (e.g., whether looking directly at the light fixture) of the people within the area. Four sets of sensors simultaneously collect data from different dimensions, achieving comprehensive coverage of ambient light, personnel status, light quality, and human dynamics, avoiding the limitations of information collected by a single sensor. This multi-dimensional data acquisition mode provides more comprehensive and detailed raw data for subsequent control, ensuring that the main controller's judgment of the scene is more in line with actual needs, laying the foundation for precise lighting control; Each sensor transmits the real-time data it collects to the main controller integrated inside the housing 1 via a data cable. The illumination status data from the ambient light sensor 9, the human activity data from the human infrared sensor 10, the light quality parameter data from the multispectral light quality sensor 11, and the human dynamic data from the human posture and gaze tracking sensor 12 are aggregated to the main controller at a stable transmission rate to ensure that there is no data loss or delay during transmission. Wired transmission via data cable avoids electromagnetic interference that may occur with wireless transmission, ensuring the stability and accuracy of data transmission. Real-time data transmission enables the main controller to promptly acquire scene change information, ensuring rapid response to dynamic scenes and avoiding control delays caused by data lag, thereby maintaining real-time matching between lighting status and scene requirements. After receiving and storing the data transmitted by each sensor, the main controller performs comprehensive analysis and logical judgment on the data. For example, when the ambient light sensor 9 detects that the ambient light has become brighter and the human infrared sensor 10 detects human activity in the area, the main controller combines the light quality data from the multispectral light quality sensor 11 to determine whether the brightness of the light source generator 7 needs to be reduced to avoid excessive light. If the human posture and gaze tracking sensor 12 detects that a person's gaze is directly looking at the light fixture, the main controller fuses this information with other data to determine whether the angle of the light shield 6 needs to be adjusted to reduce direct glare. The main controller's comprehensive processing of multi-dimensional data enables cross-validation and logical correlation of information, avoiding potential deviations that may occur when control is driven by a single data source. For example, adjusting brightness solely based on data from the ambient light sensor 9 might overlook the activity status of personnel, while combining data from the human infrared sensor 10 allows for control that better matches the actual needs of personnel. This multi-data fusion judgment mode improves the main controller's accuracy in understanding the scene, ensuring that the control logic is more reasonable and intelligent. Based on the data processing results, the main controller sends control commands to the light source generator 7 to adjust its emission color and intensity. If the multispectral light quality sensor 11 detects poor ambient light color rendering, the main controller will instruct the light source generator 7 to optimize the emission spectrum and improve the illumination color rendering. If the ambient light sensor 9 indicates that the environment is getting darker and the human infrared sensor 10 detects human activity, the main controller will control the light source generator 7 to appropriately increase the brightness to ensure sufficient lighting. If the human posture and gaze tracking sensor 12 detects that a person is resting, the main controller may instruct the light source generator 7 to switch to warm-toned light to create a more comfortable atmosphere. The dynamic control of the light source generator 7 allows the light to flexibly adapt to changes in the scene—ensuring sufficient brightness and good color rendering when people are active, while adjusting the light state when people are resting or when the ambient light changes, avoiding visual fatigue caused by excessively strong, weak, or unsuitable light colors. This on-demand control mode not only improves lighting comfort but also reduces unnecessary energy consumption, balancing comfort and energy saving. While controlling the light source generator 7, the main controller, based on the data judgment results, sends a command to the drive unit 14 connected to the outside of the second connector 13. The drive unit 14 drives the rotating shaft of the light shield 6 located inside the first connector 5 to rotate, thereby changing the tilt angle of the light shield 6. For example, when the human posture and gaze tracking sensor 12 detects that a person is looking directly at the light fixture, the main controller commands the drive unit 14 to increase the tilt angle of the light shield 6 to block more direct light; if the ambient light sensor 9 shows that the ambient light is weak and the range of human activity has expanded, the main controller controls the light shield 6 to decrease the tilt angle to expand the lighting range and ensure light coverage. The dynamic adjustment of the tilt angle of the light shield 6 achieves a flexible balance between anti-glare effect and lighting range. The mechanical adjustment driven by the drive component 14 ensures the stability and accuracy of the angle change of the light shield 6, and can optimize the light shielding range according to real-time scene requirements such as human line of sight and ambient light. This avoids the glare or insufficient lighting problems that may occur in dynamic scenes with a fixed light shielding angle, and further improves the comfort and scene adaptability of lighting. During the operation of the lighting fixtures, each sensor continuously collects data and transmits it to the main controller. The main controller repeats the above data processing and control steps to dynamically optimize the light emission state of the light source generator 7 and the tilt angle of the light shield 6. For example, when a person leaves the area (the human infrared sensor 10 detects no one), the main controller will gradually reduce the brightness of the light source generator 7 and increase the angle of the light shield 6; if a person returns later, the sensor detects activity information again, and the main controller responds quickly to restore the appropriate lighting state. Continuous monitoring and dynamic optimization enable the luminaires to adapt to scene changes at different times and under different user conditions, maintaining ideal lighting effects without human intervention. This closed-loop logic of "perception-judgment-control-re-perception" ensures that the lighting status is always synchronized with scene requirements, significantly improving the intelligence and ease of use of the luminaires. At the same time, precise control further reduces energy waste and extends the lifespan of the luminaires.
[0025] This solution achieves a balance between efficient anti-glare and optimized light effect through the synergistic effect of the added light effect actuator 2, Fresnel lens 8, and light shield 3. The light effect actuator 2 effectively improves the utilization rate of the light source and reduces energy loss, while the Fresnel lens 8 can softly focus and evenly diffuse the light, avoiding visual discomfort caused by direct light. Finally, the added light shield 3 further blocks residual direct light, reducing the risk of glare from a physical perspective. At the same time, the drive component 14 can drive the rotation of the light shield 6, thereby changing the tilt angle of the light shield 6. This allows the angle of the shield to be automatically adjusted according to the ambient light requirements or user preferences, dynamically adapting to the light distribution requirements of different scenarios such as offices, homes, and commercial spaces. This not only improves lighting comfort but also reduces unnecessary energy waste through precise light control, taking into account both energy saving and functional requirements.
[0026] This solution, through the addition of an ambient light sensor 9, a human infrared sensor 10, a multispectral light quality sensor 11, and a human posture and gaze tracking sensor 12, can capture ambient light status, human activity, light quality parameters, and human dynamic information in all aspects. This allows the main controller to accurately control the emission color and intensity of the light source generator 7 based on this multidimensional data, while flexibly adjusting the tilt angle of the light shield 6 driven by the external drive component 14 of the light shield 3, thereby achieving dynamic matching of lighting parameters with scene requirements.
Claims
1. An anti-glare downlight, characterized in that, include: The outer shell (1) has a light effect thruster (2) installed on its mounting surface. The mounting end of the light effect thruster (2) is connected to a light shield (3). The outer side of the light shield (3) is fitted with a first fitting (4). The first connector (5) is installed on both sides of the outer side of the first fitting (4). The interior of the first connector (5) is hinged with a light shield (6). The interior of the light effect thruster (2) is fitted with a light source generator (7). The interior of the light shield (3) is fitted with a Fresnel lens (8). The second connector (13) is installed outside the first connector (5). The outer ends of the second connector (13) are connected to the drive unit (14). The output end of the drive unit (14) is connected to the rotating shaft of the light shield (6) located inside the first connector (5). The second assembly (15) is installed on the upper side inside the first assembly (4). The first assembly (4) is sequentially equipped with an ambient light sensor (9), a human infrared sensor (10), a multispectral light quality sensor (11), and a human posture and eye tracking sensor (12) in the outer circumferential direction. The main controller is integrated inside the housing (1). The main controller is connected to the ambient light sensor (9), human infrared sensor (10), multispectral light quality sensor (11), and human posture and eye tracking sensor (12) via a data cable. The shape of the light shield (3) is funnel-shaped. The light shield (3) is made of black matte aluminum alloy. The inclined angle of the inclined surface of the light shield (3) is set at 45-60 degrees. The light shield plate (6) is made of rhombic plate. Both the upper and lower surfaces of the light shield plate (6) are covered with PET anti-reflection high-transparency film. Both the upper and lower surfaces of the light shield plate (6) are provided with microprism structure. The light shield plate (6) is a semi-circular plate structure. The light shield plate (6) is symmetrically arranged on the first connector (5). The rotating shaft of the light shield plate (6) is set on the arc edge of the light shield plate (6). The driving component (14) drives the light shield plate (6) to unfold from the middle to the outer periphery to adjust the tilt angle.
2. The anti-glare downlight according to claim 1, characterized in that: The Fresnel lens (8) is made of PMMA material, and the number of Fresnel lenses (8) is 2-4 layers, with a thickness of 2-4 mm for a single Fresnel lens (8).
3. The anti-glare downlight according to claim 1, characterized in that: The second assembly (15) has a third connector (16) installed on both sides of its upper surface. The inner side of the third connector (16) is provided with an elastic component (17) inserted through a rotating shaft. The outer end of the elastic component (17) is connected to a snap-fit component (18).
4. The anti-glare downlight according to claim 1, characterized in that: The mounting surface of the light effect thruster (2) is circumferentially fitted with a mating part (20). The lower inner side of the outer shell (1) is provided with a groove (19) corresponding to the mating part (20). The groove (19) and the interior of the mating part (20) are screwed with fasteners (21).
5. The anti-glare downlight according to claim 1, characterized in that: The outer shell (1) is provided with heat dissipation fins (22) in the outer circumferential direction. The number of heat dissipation fins (22) is 20-40 sets, and the surface of each heat dissipation fin (22) is covered with an anodized layer.
6. The anti-glare downlight according to claim 1, characterized in that: The light source generator (7) is fitted with an annular heat sink, which is made of oxygen-free copper. Needle-shaped heat sinks are evenly distributed on the outer surface of the annular heat sink. A phase change heat conduction pad is sandwiched between the bottom of the annular heat sink and the light effect actuator (2).
7. The anti-glare downlight according to claim 1, characterized in that: The main controller is surrounded by an electromagnetic shielding cover made of tinplate. The inner wall of the electromagnetic shielding cover is lined with wave-absorbing cotton. The electromagnetic shielding cover is connected to the inner wall of the outer shell (1) by an insulating pad.
8. The anti-glare downlight according to claim 1, characterized in that: The bottom edge of the outer casing (1) is fitted with a maintenance cover by a snap fastener. The inner side of the maintenance cover is provided with a sealing ring. The surface of the maintenance cover is provided with a strip-shaped ventilation hole, and the inside of the strip-shaped ventilation hole is provided with a dustproof net.
Citation Information
Patent Citations
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