Infrared directional control radiator, and infrared directional control system and control method

Abstract

An infrared directional control radiator 101, and an infrared directional control system and control method. The infrared directional control radiator 101 comprises a lens array 1. The lens array 1 comprises at least one radiator lens crystal unit 11. Each radiator lens crystal unit 11 comprises a lens body. A lower surface 112 of the lens body is a focal plane. An emission coating 2 is provided on the focal plane, and the emission coating 2 comprises coating units 21 made of materials having different emissivities. By using the principle of refraction of infrared light, infrared light emitted from different positions on the focal plane 112 can be refracted, and thus the light can be guided to scatter into space in predetermined directions.

Description

Infrared directional control radiator, infrared directional control system and control method

[0001] Cross-references to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 202411768681.6, filed in China on December 4, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of infrared radiation control technology, and in particular to an infrared directional control radiator, an infrared directional control system, and a control method. Background Technology

[0004] Since its inception, infrared radiation technology has undergone rapid development from single-unit scanning to staring focal plane arrays, achieving significant advancements in imaging quality, temperature resolution, spatial resolution, and operational reliability. Infrared imaging systems can receive the infrared radiation from objects and convert it into visible light images, greatly expanding the range of human visual perception and enabling us to observe infrared information that is invisible to the naked eye. Infrared radiation technology has been widely applied in numerous fields, including but not limited to target monitoring, stealth weapon system detection, and precision guidance in the military; fault diagnosis in industry; crop growth monitoring in agriculture; Earth observation in remote sensing; disease diagnosis and treatment in medicine; and security monitoring and prevention. These applications fully demonstrate the powerful potential and broad prospects of infrared radiation technology.

[0005] However, with the in-depth application of infrared radiation technology, higher requirements have been placed on the control of the direction and shape of infrared radiation. In the military field, precise control of the direction and shape of infrared radiation is crucial for improving the detection accuracy, survivability, and anti-jamming capabilities of weapon systems; in the medical field, temperature control of human body surface irradiation systems directly affects the safety and effectiveness of radiation; and in industrial production, precise control of infrared radiation helps improve production efficiency and product quality.

[0006] The development of infrared radiation direction and shape control technology will directly improve the performance of infrared imaging systems and related equipment. By precisely controlling the direction and shape of infrared radiation, the accuracy and precision of target detection can be significantly improved, reducing false alarm and false negative rates. Simultaneously, this technology also helps optimize the utilization efficiency of infrared radiation, reducing energy waste and improving the overall system performance. How to flexibly control the direction of infrared radiation is a problem that the industry urgently needs to solve. Summary of the Invention

[0007] To address the problems existing in related technologies, this disclosure provides an infrared directional control radiator, an infrared directional control system, and a control method.

[0008] The first aspect of this disclosure provides an infrared directional control radiator, the infrared directional control radiator comprising:

[0009] A lens array, comprising at least one radiator lens crystal unit, each radiator lens crystal unit comprising a lens body, the upper surface of the lens body being an upwardly convex arc surface, and the lower surface of the lens body being a focal plane; two adjacent radiator lens crystal units are fitted together at the side positions of their respective lens bodies.

[0010] It also includes an emissive coating disposed on the focal plane, the emissive coating comprising at least two coating units arranged side by side on the focal plane along the direction of the side of the lens body, and the emissivity of the materials used to prepare each coating unit is different.

[0011] Optionally, the coating unit includes a first coating unit and a second coating unit, wherein the emissivity of the material used to prepare the first coating unit is a first emissivity, the emissivity of the material used to prepare the second coating unit is a second emissivity, and the first emissivity is greater than the second emissivity.

[0012] Optionally, in the emission coating, the first coating unit is distributed on one side of the focal plane, and the second coating unit is distributed on the other side of the focal plane; or,

[0013] In the emission coating, the first coating unit and the second coating unit are distributed at intervals on the focal plane.

[0014] Optionally, the materials used to prepare the first coating unit and the second coating unit are magnetic powder particles; or

[0015] The materials used to prepare the first coating unit and the second coating unit are strip-shaped materials.

[0016] Optionally, the coating unit is movably disposed on the focal plane.

[0017] Optionally, the coating unit is fixedly disposed on the focal plane.

[0018] The second aspect of this disclosure provides an infrared directional control system, including the infrared directional control radiator, microcontroller, and focal plane coating adjuster provided in the first aspect above;

[0019] The microcontroller is used to send a coating adjustment signal to the focal plane coating adjuster, the coating adjustment signal being used to characterize the target distribution position of the coating units included in each emission coating;

[0020] The focal plane coating adjuster is used to adjust the current distribution position of the coating unit in each emission coating based on the target distribution position characterized by the coating adjustment signal.

[0021] Optionally, it also includes:

[0022] A focal plane coating sensor is used to receive the coating adjustment signal sent by the microcontroller, detect the position information of the coating unit in each emitting coating, and compare the detected position information with the target distribution position of the coating unit included in each emitting coating as characterized by the coating adjustment signal.

[0023] A third aspect of this disclosure provides an infrared direction control method for dynamically adjusting the distribution position of coating units in an infrared direction control radiator provided in the first aspect, the method comprising:

[0024] Acquire a coating adjustment signal, which is used to characterize the target distribution position of the coating units included in each emitting coating;

[0025] Based on the target distribution position represented by the coating adjustment signal, the current distribution position of the coating unit in each emission coating is adjusted.

[0026] Optionally, the method further includes:

[0027] The position information of the coating unit in each emission coating is detected, and the detected position information is compared with the target distribution position of the coating unit included in each emission coating as characterized by the coating adjustment signal.

[0028] This disclosure provides an infrared directional control radiator, an infrared directional control system, and a control method. The infrared directional control radiator, through a built-in lens system, has an emission coating on its focal plane. This emission coating comprises coating units made of materials with different emissivity. Utilizing the principle of infrared light refraction, it can refract infrared rays emitted from different positions on the focal plane, thereby guiding these rays to scatter into space in a predetermined direction. By adjusting the emissivity of different regions on the focal plane, the intensity of infrared radiation in different directions can be precisely controlled, achieving more accurate and flexible radiation mode modulation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 is one of the schematic diagrams of an infrared directional control radiator structure provided in an embodiment of this disclosure.

[0031] Figure 2 is a second schematic diagram of the infrared directional control radiator structure provided in the embodiments of this disclosure.

[0032] Figure 3 is one of the schematic diagrams of the focal plane pattern provided in the embodiments of this disclosure.

[0033] Figure 4 is a second schematic diagram of the focal plane pattern provided in the embodiments of this disclosure.

[0034] Figure 5 is a schematic diagram of the lens design provided in an embodiment of this disclosure.

[0035] Figure 6 is a schematic diagram of the focal plane design provided in an embodiment of this disclosure.

[0036] Figure 7 is a schematic diagram of optical simulation results for different focal plane designs provided in the embodiments of this disclosure.

[0037] Figure 8 is a schematic diagram showing the relationship between spatial radiation intensity and direction provided in an embodiment of this disclosure.

[0038] Figure 9 is a schematic diagram of optical simulation at different focal plane angles provided in the embodiments of this disclosure.

[0039] Figure 10 is a schematic diagram of the infrared directional control system structure provided in an embodiment of this disclosure.

[0040] Figure 11 is a schematic flowchart of the infrared direction control method provided in the embodiments of this disclosure. Detailed Implementation

[0041] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive. To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions in this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0042] Infrared radiation, as a widely used non-contact energy transfer method, inherently exhibits a hemispherical distribution in space, and its intensity varies with angle according to the cosine law. This inherent characteristic poses significant limitations in many applications. Specifically, this distribution means that once the emissivity of an object's surface material is determined at a specific temperature, the intensity of infrared radiation emitted into the surrounding space follows a fixed and difficult-to-adjust pattern. This lack of flexibility is particularly inadequate in applications requiring precise control of infrared radiation direction to enhance detection accuracy, improve energy efficiency, or achieve specific functional layouts. For example, in infrared communication systems, the inability to precisely control the radiation direction can lead to signal crosstalk and energy waste; in infrared-guided weapons, inaccurate radiation direction can reduce hit probability; and in the field of medical infrared therapy, it can affect treatment efficacy and safety.

[0043] In view of the above limitations, the embodiments of this disclosure propose a novel infrared directional control radiator design to solve the technical problem of the difficulty in flexibly adjusting the direction of infrared radiation. The core of the embodiments of this disclosure lies in utilizing the refraction principle of infrared light, combined with precise control of the emissivity of the focal plane, to achieve dynamic adjustment of the infrared radiation direction. Specifically, the infrared directional control radiator, through a built-in lens system, can refract infrared rays emitted from different positions on the focal plane, thereby guiding these rays to scatter into space in a predetermined direction. More importantly, by adjusting the emissivity of different regions on the focal plane, the intensity of infrared radiation in different directions can be further refined, achieving more precise and flexible radiation mode control. By directionally controlling the emission and reflection of infrared radiation, heat can be efficiently radiated to cold sources (such as the sky) for heat dissipation, while reducing heat absorption from hot environments (such as the ground), thereby achieving efficient heat dissipation and energy saving.

[0044] Figure 1 is a schematic diagram of one of the infrared direction control radiators provided in this embodiment, and Figure 2 is a schematic diagram of another infrared direction control radiator provided in this embodiment. As shown in Figures 1 and 2, the infrared direction control radiator includes a lens array and an emitting coating. The lens array 1 includes at least one radiator lens crystal unit 11. Each radiator lens crystal unit 11 includes a lens body, the upper surface 111 of which is an upwardly convex arc surface, and the lower surface 112 of which is a focal plane. Adjacent radiator lens crystal units 11 are fitted together at their respective lens body side surfaces 113. Specifically, the radiator lens crystal unit 11 can be a cylindrical lens, which is made of a high-refractive-index infrared material and can control the propagation direction of infrared light through refraction. The lens array 1 can include one radiator lens crystal unit 11 or multiple radiator lens crystal units 11, that is, the lens array 1 is composed of multiple combined cylindrical lens units 11, for example, multiple fixed, non-adjustable combined cylindrical lenses.

[0045] As shown in Figure 1, the lower half of the lens body in the radiator lens crystal unit 11 can be square prism-shaped, and the upper half can be cylindrical cut surface.

[0046] In the case where the lens array 1 may include multiple radiator lens crystal units 11, the multiple radiator lens crystal units 11 can be spliced ​​together in the horizontal direction as shown in Figure 2. That is, the infrared direction controller lens part structure is formed by periodically arranging the radiator lens crystal units into an array.

[0047] Furthermore, the emitting coating 2 is disposed on the focal plane 112 of the lens body. The emitting coating 2 includes at least two coating units 21 arranged side-by-side on the focal plane 112 along the direction of the lens body side surface 113, and the emissivity of each coating unit 21 is different. As shown in Figure 2, the emitting coating 2 is disposed on the focal plane 112 and includes two or more coating units 21, which are arranged side-by-side on the focal plane 112, and the extending direction of the coating units 21 is the same as the extending direction of the lens body side surface 113. Furthermore, to better control the direction of infrared light, each coating unit 21 included in the emitting coating 2 can be prepared using materials with different emissivity. The purpose of using different emissivity materials is to ensure that different coating units 21 have different emissivity. The infrared direction control radiator, through the design of high / low emissivity coating units in conjunction with the cylindrical lens, can control the infrared radiation direction in different directions.

[0048] The infrared directional control radiator provided in this embodiment controls the infrared direction based on the refraction principle of infrared light. The radiator can refract infrared rays emitted from different positions of the focal plane through a lens and emit them to different directions in space. By controlling the emissivity of different positions of the focal plane, the infrared radiation intensity in different directions can be ultimately adjusted.

[0049] Based on the above embodiments, the emissive coating may include multiple coating units. This disclosure describes an example of an emissive coating comprising two coating units. The two coating units are a first coating unit and a second coating unit. The material used to prepare the first coating unit has an emissivity of a first emissivity, and the material used to prepare the second coating unit has an emissivity of a second emissivity. Furthermore, the first emissivity is greater than the second emissivity; that is, the first coating unit has a higher emissivity than the second coating unit.

[0050] Furthermore, the portions of the two coating units in the emission coating can include various patterns, resulting in multiple focal plane patterns. Figure 3 is a schematic diagram of one focal plane pattern provided in an embodiment of this disclosure, and Figure 4 is a schematic diagram of another focal plane pattern provided in an embodiment of this disclosure. As shown in Figure 3, in the emission coating, for example, the first coating unit a is distributed on one side of the focal plane (shown in dark color in the figure), and the second coating unit b is distributed on the other side of the focal plane (shown in light color in the figure). As shown in Figure 4, for another example, the first coating unit a and the second coating unit b are distributed alternately on the focal plane.

[0051] Optionally, the material used to prepare the first coating unit and the second coating unit is a magnetic powder particle material; or, the material used to prepare the first coating unit and the second coating unit is a strip material.

[0052] Optionally, based on the above embodiments, the coating unit is movably disposed on the focal plane. That is, the coating unit is a plurality of movable high emissivity material units arranged on the focal plane. The position of the coating unit can be dynamically adjusted by control to form different focal plane patterns on the focal plane. The focal plane pattern is not fixed and can be dynamically changed according to actual needs.

[0053] Optionally, based on the above embodiments, the coating unit can be fixedly disposed on the focal plane. In this embodiment, the focal plane pattern remains unchanged. For example, the focal plane is prepared by spraying high-emissivity stripes onto a low-emissivity substrate.

[0054] The infrared directional control radiator provided in this embodiment uses a built-in lens system to create an emission coating on the focal plane. This emission coating comprises coating units made of materials with different emissivity. Utilizing the principle of infrared light refraction, it can refract infrared rays emitted from different positions on the focal plane, thereby guiding these rays to scatter into space in a predetermined direction. By adjusting the emissivity of different regions on the focal plane, the intensity of infrared radiation in different directions can be precisely controlled, achieving more accurate and flexible radiation mode modulation.

[0055] Figure 5 is a schematic diagram of the lens design provided in an embodiment of this disclosure, and Figure 6 is a schematic diagram of the focal plane design provided in an embodiment of this disclosure. As shown in Figure 5, the XY plane cross-section of the lens has a width of W, a height of H, and a top arc with radius R, corresponding to a central angle of θ1. The position of the focal plane determines the size of H, which is determined by the focal length of the lens for incident light perpendicular to the X-axis. When a beam of parallel light perpendicular to the X-axis is incident from a vacuum onto the radiator, the light is refracted and focused onto the focal plane by the lens. For incident light at the edge of the lens, the angle of incidence is θ1 / 2, and the angle of refraction after refraction is θ2. The relationship satisfies:

[0056] Where n is the refractive index of the lens.

[0057] Furthermore, the formula for calculating the lens thickness H can be obtained:

[0058] As the incident angle of the light changes, the focusing position and width of the light on the focal plane will change, as shown in Figure 6. When a beam of parallel light with an angle α to the horizontal plane is incident on the radiator, its incident angles (β1, β2) at both ends of a single cylindrical lens are respectively: β1=90°-a-sin(θ1 / 2) (3) β2=90°-a+sin(θ1 / 2) (4)

[0059] Furthermore, after incident on the lens, the refraction angles γ1 and γ2 are respectively:

[0060] Furthermore, the width (f) of the light spot formed by the incident light in the focal plane is:

[0061] Furthermore, the distance g from the center of the light spot to the center of the focal plane is:

[0062] As the incident angle changes, the focusing position of the light on the focal plane and the width of the light spot will change. Optionally, the device design results for different radiation directions calculated using the above method are shown in Table 1.

[0063] Table 1

[0064] Optionally, simulation can be performed using the COMSOL ray optics module, employing a material with an infrared refractive index of 4.0, and setting R = W = 3.5 mm. The calculated lens height H is 4.628 mm.

[0065] Figure 7 is a schematic diagram of optical simulation results for different focal plane designs provided in the embodiments of this disclosure, and Figure 8 is a schematic diagram of the relationship between radiation intensity and direction in space provided in the embodiments of this disclosure. As shown in Figures 7 and 8, Case 1 and Case 2 represent two cases where the left and right sides of the focal plane are set to low / high emissivity and high / low emissivity, respectively. The lighter-colored areas represent low-emissivity materials, and the darker-colored areas represent high-emissivity materials. It is determined that the distribution of high and low emissivity materials on the focal plane can be flexibly adjusted. Optical simulations show that this device can concentrate infrared radiation into a quarter-sphere within a radius of 0–90° or 90–180° and radiate it outwards. A similar phenomenon can be observed from the relationship between radiation intensity and direction in space. By adjusting the distribution of high / low emissivity materials on the focal plane, the infrared radiation intensity in different directions can be controlled using this device.

[0066] Figure 9 is a schematic diagram of optical simulation at different focal plane angles provided in the embodiments of this disclosure. Furthermore, the focal plane pattern of the device is designed in greater detail to control the infrared radiation intensity at different angles. As shown in Figure 9, the simulation results demonstrate that the radiator can flexibly adjust the radiation direction.

[0067] Optionally, the focal plane fringes can be comprehensively designed to simultaneously control thermal radiation in multiple directions. The distribution of high and low emissivity materials at the focal plane can be flexibly adjusted.

[0068] Figure 10 is a schematic diagram of the infrared directional control system provided in an embodiment of this disclosure. As shown in Figure 10, the infrared directional control system includes an infrared directional control radiator 101, a microcontroller 102, and a focal plane coating adjuster 103. The infrared directional control radiator 101 can be the infrared directional control radiator provided in the above embodiments, and its specific structure will not be described in detail. The microcontroller 102 is used to send a coating adjustment signal to the focal plane coating adjuster 103. The coating adjustment signal is used to characterize the target distribution position of the coating units included in each emitting coating. The focal plane coating adjuster 103 is used to adjust the current distribution position of the coating units in each emitting coating based on the target distribution position characterized by the coating adjustment signal. The infrared directional control system provided in this embodiment can flexibly control the infrared radiation direction and radiation shape of the infrared directional control radiator within a spatial hemisphere.

[0069] As shown in Figure 10, the infrared directional control system may also include a command input device 104, a power management module 105, a drive circuit 106, a focal plane coating sensor 107, a signal acquisition and processing unit 108, a signal amplifier 109, and a focal plane status display 1010.

[0070] Specifically, the instruction input device 104 is connected to the microcontroller 102, and its function is to receive external control signals and input instructions to the microcontroller 102 to adjust the focal plane coating distribution. The microcontroller 102 is bidirectionally connected to the power management module 105, which is responsible for constantly inputting power to the microcontroller 102 to ensure that the microcontroller 102 can receive signals from the instruction input device 104 in real time. The microcontroller 102 is also connected to the drive circuit 106, and is responsible for transmitting control signals to the drive circuit 106. The microcontroller 102 is connected to the focal plane coating adjuster 103, and is responsible for transmitting coating adjustment signals to the focal plane coating adjuster 103. The power management module 105 is connected not only to the microcontroller 102 but also to the drive circuit 106, and is responsible for providing different levels of power to the drive circuit 106 when the microcontroller 102 sends different instructions. The focal plane coating adjuster 103 controls the external high-emissivity focal plane coating to adjust according to the coating adjustment signal content.

[0071] The focal plane coating adjuster 103 is also connected to the focal plane coating sensor 107, responsible for synchronizing the coating adjustment signal sent by the microcontroller 102 to the focal plane coating sensor 107. The focal plane coating sensor 107 is used to receive the coating adjustment signal sent by the microcontroller 102, detect the position information of the coating units in each emitting coating, and compare the detected position information with the target distribution position of the coating units included in each emitting coating as represented by the coating adjustment signal. Specifically, the focal plane coating sensor 107 is connected to an external focal plane to detect the real-time state of the focal plane, and compares it with the coating adjustment signal transmitted by the focal plane coating adjuster 103 to monitor whether the focal plane coating adjuster 103 has correctly distributed the high emissivity coating on the focal plane.

[0072] The focal plane coating sensor 107 is also connected to a signal amplifier 109 to transmit weak sensor signals. The signal amplifier 109 is also connected to a signal acquisition and processing unit 108 to amplify the weak signal from the focal plane coating sensor 107 with low noise before transmitting it to the signal acquisition and processing unit 108. The signal acquisition and processing unit 108 is also connected to a focal plane status display 1010, which transmits the processed signal to the focal plane status display 1010. Specifically, the focal plane status display 1010 receives and displays the focal plane status signal to show the current actual focal plane status and the input focal plane status command.

[0073] Figure 11 is a schematic flowchart of the infrared direction control method provided in the embodiments of this disclosure. As shown in Figure 11, the method is used to dynamically adjust the distribution position of the coating units in the infrared direction control radiator provided in the above embodiments. The method includes the following steps:

[0074] Step 1101: Obtain the coating adjustment signal, which is used to characterize the target distribution position of the coating unit included in each emitting coating;

[0075] Step 1102: Based on the target distribution position represented by the coating adjustment signal, adjust the current distribution position of the coating unit in each emitting coating.

[0076] In the above embodiments, the method may further include the following steps:

[0077] The position information of the coating unit in each emission coating is detected, and the detected position information is compared with the target distribution position of the coating unit included in each emission coating as characterized by the coating adjustment signal.

[0078] In this method, the system generates a coating adjustment signal based on user input. This signal characterizes the target distribution positions of the coating units in each emitting coating that the user desires. Then, the system adjusts the current distribution positions of the coating units in each emitting coating according to the target distribution positions characterized by the coating adjustment signal, thereby forming a focal plane pattern on the focal plane corresponding to the coating adjustment signal.

[0079] Furthermore, to ensure the accuracy of the coating adjustment, the system can also detect the position information of the coating units in each emission coating through sensors, and compare the detected position information with the target distribution position of the coating units included in each emission coating as represented by the coating adjustment signal. That is, by detecting and obtaining the adjusted focal plane pattern, the system compares it with the focal plane pattern represented by the coating adjustment signal to verify the accuracy of the adjustment.

[0080] In the above embodiments, if the high emissivity coating on the focal plane is a magnetic powder particle material (such as metallic chromium), an electronic magnet array unit can be directly used as a controller component on the focal plane controller. By adjusting the energization and discharge of the electronic magnet array unit, the distribution of the high emissivity magnetic powder particle material can be further adjusted, thereby changing its infrared characteristics.

[0081] In the above embodiments, if the high emissivity coating on the focal plane is a plurality of movable strip materials, a strip material moving device can be used on the focal plane controller to move the strip materials in real time as needed, thereby changing their infrared characteristics.

[0082] The infrared directional control system and method provided in this disclosure utilize an infrared directional control radiator that, through a built-in lens system, refracts infrared rays emitted from different positions on the focal plane, thereby guiding these rays to scatter into space in a predetermined direction. More importantly, by adjusting the emissivity of different regions on the focal plane, the intensity of infrared radiation in different directions can be further refined, achieving more precise and flexible radiation pattern control. This allows infrared radiation to be precisely directed to a target area, much like a laser, thereby improving the overall performance and efficiency of the system.

[0083] The design of this disclosed embodiment not only breaks the constraint of fixed radiation direction in traditional infrared radiation technology, but also greatly expands the application scope and potential of infrared radiation technology. It enables infrared radiation to be precisely directed to a target area, just like laser radiation, thereby improving the overall performance and efficiency of the system. At the same time, this design also provides strong technical support and guarantee for the in-depth application of infrared radiation technology in multiple fields such as military, medical, and industrial inspection.

[0084] The infrared directional control radiator and infrared directional control system provided in this disclosure possess unique infrared emissivity characteristics, enabling them to: directionally radiate heat for cooling, for example, by designing a device with high infrared emissivity towards the sky (cold source), allowing the target's outer surface to efficiently and directionally release heat into the sky in the form of infrared radiation, effectively reducing its own temperature; reflect thermal radiation, for example, by exhibiting low infrared emissivity towards the ground (heat source), effectively reflecting thermal radiation from the ground, reducing unnecessary heat absorption, and further improving cooling effect and energy utilization efficiency; enhance stealth and heat dissipation compatibility: in the field of military stealth, this technology achieves dual optimization of stealth performance and heat dissipation requirements by precisely controlling the direction of infrared radiation, improving the survivability and combat effectiveness of equipment; and enhance infrared detection capabilities: in the field of infrared detection, the directional control of infrared radiation allows the detection system to capture more dimensions of target information, such as temperature distribution and material properties, enhancing the accuracy and comprehensiveness of detection, etc.

[0085] The infrared directional control system and method provided in this disclosure can flexibly adjust the infrared radiation direction and shape of the infrared radiator within a spatial hemisphere. Although the infrared emission power and emission angle can be adjusted, the infrared emitting devices in related technologies are active emitting devices, which are fundamentally different from the passive devices provided in this disclosure. When emitting infrared signals using an active professional infrared emitting device, the infrared intensity can be adjusted by the power supply, and the emission direction can be adjusted mechanically, which is technically less difficult.

[0086] The infrared directional control radiator provided in the embodiments of this disclosure not only breaks the constraint of fixed radiation direction in related infrared radiation technologies, but also greatly expands the application scope and potential of infrared radiation technology. It enables infrared radiation to be precisely directed to a target area, much like laser radiation, thereby improving the overall performance and efficiency of the system. Simultaneously, the infrared directional control radiator provided in the embodiments of this disclosure not only opens up new avenues for passive and effective cooling of industrial equipment such as antenna housings and the outer surfaces of communication data centers, further improving energy utilization efficiency, but also provides strong technical support and guarantees for the in-depth application of infrared radiation technology in multiple fields such as military, medical, and industrial inspection (e.g., infrared detection, target stealth).

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. An infrared directional control radiator, the infrared directional control radiator comprising: A lens array, comprising at least one radiator lens crystal unit, each radiator lens crystal unit comprising a lens body, the upper surface of the lens body being an upwardly convex arc surface, and the lower surface of the lens body being a focal plane; two adjacent radiator lens crystal units are fitted together at the side positions of their respective lens bodies. It also includes an emissive coating disposed on the focal plane, the emissive coating comprising at least two coating units arranged side by side on the focal plane along the direction of the side of the lens body, and the emissivity of the materials used to prepare each coating unit is different.

2. The infrared direction-controlled radiator according to claim 1, wherein, The coating unit includes a first coating unit and a second coating unit. The material used to prepare the first coating unit has an emissivity of a first emissivity, and the material used to prepare the second coating unit has an emissivity of a second emissivity, wherein the first emissivity is greater than the second emissivity.

3. The infrared direction-controlled radiator according to claim 2, wherein, In the emission coating, the first coating unit is distributed on one side of the focal plane, and the second coating unit is distributed on the other side of the focal plane; or, In the emission coating, the first coating unit and the second coating unit are distributed at intervals on the focal plane.

4. The infrared direction-controlled radiator according to claim 2, wherein, The materials used to prepare the first coating unit and the second coating unit are magnetic powder particles; or The materials used to prepare the first coating unit and the second coating unit are strip-shaped materials.

5. The infrared direction-controlled radiator according to any one of claims 1 to 4, wherein, The coating unit is movably disposed on the focal plane.

6. The infrared direction-controlled radiator according to any one of claims 1 to 4, wherein, The coating unit is fixedly mounted on the focal plane.

7. An infrared directional control system, comprising the infrared directional control radiator, microcontroller, and focal plane coating adjuster as described in claim 5; The microcontroller is used to send a coating adjustment signal to the focal plane coating adjuster, the coating adjustment signal being used to characterize the target distribution position of the coating units included in each emission coating; The focal plane coating adjuster is used to adjust the current distribution position of the coating unit in each emission coating based on the target distribution position characterized by the coating adjustment signal.

8. The infrared direction control system of claim 7, wherein, Also includes: A focal plane coating sensor is used to receive the coating adjustment signal sent by the microcontroller, detect the position information of the coating unit in each emitting coating, and compare the detected position information with the target distribution position of the coating unit included in each emitting coating as characterized by the coating adjustment signal.

9. An infrared direction control method for dynamically adjusting the distribution position of coating units in an infrared direction control radiator as described in claim 5, the method comprising: Acquire a coating adjustment signal, which is used to characterize the target distribution position of the coating units included in each emitting coating; Based on the target distribution position represented by the coating adjustment signal, the current distribution position of the coating unit in each emission coating is adjusted.

10. The infrared direction control method according to claim 9, wherein The method further includes: The position information of the coating unit in each emission coating is detected, and the detected position information is compared with the target distribution position of the coating unit included in each emission coating as characterized by the coating adjustment signal.

Images