Dual-mode signal indicating lamp for air refueling system

Abstract

The invention provides a dual-mode signal indicating lamp for an air refueling system, and belongs to the technical field of aircraft external illumination, and the dual-mode signal indicating lamp specifically comprises a light source assembly, the light source assembly is used for emitting visible light and infrared light, and the light source assembly comprises a visible light reflecting cover, a visible light source, an infrared light reflecting cover and an infrared light source; the visible light reflecting cover is annular, the visible light sources are annularly distributed in the annular inner ring of the visible light reflecting cover, the inner side light reflecting face of the visible light reflecting cover is located on the first paraboloid, and the visible light sources correspond to the focus of the first paraboloid. The infrared light reflecting cover is annular, the infrared light source is located on the inner ring of the annular infrared light reflecting cover, the inner side light reflecting face of the infrared light reflecting cover is located on the second paraboloid, and the infrared light source corresponds to the focus of the second paraboloid. And the scattering angle of infrared light spots reflected by the infrared light reflecting cover is 18-25 degrees. According to the processing scheme provided by the invention, the uniformity of the light spots of the signal indicating lamp and the anti-dazzle effect are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aircraft external lighting, in particular to a dual-mode signal indicator lamp for an aerial refueling system. BACKGROUND

[0002] The pod aerial refueling indicator lamp is a key visual aid device of the aerial refueling system, mainly used for conveying aerial refueling process instructions and pod state information to the pilot of the receiving aircraft, guiding the pilot of the receiving aircraft to complete the aerial refueling operation. The aerial refueling indicator lamp usually adopts multi-color high-brightness LED light sources, such as red, yellow and green LED light sources, in combination with an infrared auxiliary waveband to ensure visibility under complex weather conditions. However, the current refueling signal indicator lamp has the problems of uneven light spot, easy imaging and reflection of infrared light on the outer wall of the refueling channel, which is easy to cause the pilot of the receiving aircraft to misjudge during the refueling task. SUMMARY

[0003] Therefore, the present application provides a dual-mode signal indicator lamp for an aerial refueling system, which solves the problems in the prior art and improves the uniformity of the light spot of the signal indicator lamp and the anti-glare effect.

[0004] The dual-mode signal indicator lamp for an aerial refueling system provided by the present application adopts the following technical solution: A dual-mode signal indicator lamp for an aerial refueling system, comprising a light source assembly, the light source assembly being used to emit visible light and infrared light, the light source assembly comprising a visible light reflector, a visible light source, an infrared light reflector and an infrared light source; The visible light reflector is annular, the visible light source is annularly distributed in the inner ring of the visible light reflector, the visible light reflector and the visible light source are coaxially arranged, the inner side reflecting surface of the visible light reflector is located on a first parabolic surface, and the visible light source corresponds to the focal point of the first parabolic surface; The infrared light reflector is annular, and the infrared light reflector is located at the center of the inner ring of the visible light source, the infrared light source is located in the inner ring of the annular infrared light reflector, the inner side reflecting surface of the infrared light reflector is located on a second parabolic surface, and the infrared light source corresponds to the focal point of the second parabolic surface; The scattering angle of the infrared light spot reflected by the infrared light reflector is 18-25°.

[0005] Optionally, the light source assembly further comprises a light-transmitting glass screen, the light-transmitting glass screen covers the light-emitting end surface of the visible light reflector, the side of the light-transmitting glass screen facing away from the visible light reflector is a convex curved surface, the side of the light-transmitting glass screen facing the visible light reflector is a flat surface, and a plurality of arrayed spherical lenses are arranged on the side of the light-transmitting glass screen facing the visible light reflector and located outside the range of the infrared light reflector.

[0006] Optionally, the focal length of the generatrix of both the first and second parabolic surfaces is defined as... The aperture of the light-emitting end of the inner reflective surface of both the visible light reflector and the infrared reflector is defined as... The depth of the inner reflective surface of both the visible light reflector and the infrared reflector is... ,focal length ,caliber and depth The relationship satisfies the following equation: .

[0007] Optionally, the aperture of the light-emitting end of the inner reflective surface of the visible light reflector... The depth of the inner reflective surface of the visible light reflector is 42-43 mm, with a value range of 42-43 mm. The value range is 5-6mm.

[0008] Optionally, the aperture of the light-emitting end of the inner reflective surface of the infrared reflector... The value ranges from 12 to 13 mm, and the depth of the inner reflective surface of the infrared reflector is... The value range is 3-4mm.

[0009] Optionally, the visible light source includes several visible light LEDs that are circumferentially spaced and uniformly distributed. The distance between adjacent visible light LEDs is a, and the distance between the visible light LEDs and the light-emitting end of the reflective surface inside the visible light reflector is b. The value of a / b ranges from 0.85 to 0.95.

[0010] Optionally, the luminous transmittance of a single visible LED lamp is 60lm, the maximum output luminous intensity of a single visible LED lamp is 80-100cd, the minimum output luminous intensity is about 2-4cd, and the light spot scattering angle of a single visible LED lamp is 55-65°.

[0011] Optionally, the dual-mode signal indicator for the aerial refueling system also includes a cover plate and a housing. The light source assembly is provided in multiple forms, with each light source assembly having a different visible light source color and a different infrared light source wavelength. The light source components are installed at intervals inside the housing on the housing fixing cover plate. The cover plate is provided with an electrical connector for electrical connection with visible light source and infrared light source.

[0012] In summary, this application includes the following beneficial technical effects: This application's visible light mode light distribution scheme uses a ring-shaped visible light source and a parabolic visible light reflector to meet the lighting indication signal requirements of the signal light box, thereby achieving a visible light distribution scheme with uniform light spot, high light energy utilization, simple structure, and good floodlight effect. The infrared light mode light distribution scheme uses an infrared light source and a parabolic infrared light reflector. This scheme reduces the light emission angle to 18-25° through reflector design, effectively controlling the large-angle emission light from the infrared light source, resulting in good infrared focusing effect, and is suitable for infrared light distribution schemes in signal light boxes.

[0013] The application proposes to use multiple spherical lenses to form a frosted surface on the inner side of a transparent glass screen corresponding to the visible light emission range. This can disperse the emitted light, which is concentrated in a relatively small area. Because the surface of the frosted surface microstructure is not smooth enough, the light will be distorted and scattered, resulting in a decrease in the clarity of the image, thereby achieving the purpose of eliminating glare. Attached Figure Description

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

[0015] Figure 1 This is a schematic diagram of the structure of a dual-mode signal indicator light used in an aerial refueling system; Figure 2 This is a schematic diagram of the structure of the light source assembly and the light-transmitting glass screen of this application.

[0016] Explanation of reference numerals in the attached diagram: 1. Transparent glass screen; 2. Pressure plate; 3. Housing; 4. Sealing ring; 5. Visible light reflector; 6. Infrared light reflector; 61. Infrared light source; 7. Visible light source; 8. Cover plate; 9. Electrical connector; 10. Spherical lens; 11. Smooth surface. Detailed Implementation

[0017] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0018] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0020] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0022] This application provides a dual-mode signal indicator for an aerial refueling system.

[0023] like Figure 1 and Figure 2 As shown, a dual-mode signal indicator for an aerial refueling system includes a light source assembly for emitting visible light and infrared light. The light source assembly includes a visible light reflector 5, a visible light source 7, an infrared light reflector 6, and an infrared light source 61.

[0024] The visible light reflector 5 is annular, and the visible light source 7 is distributed in annular form within the inner ring of the visible light reflector. The visible light reflector 5 and the visible light source 7 are coaxially arranged. The inner reflective surface of the visible light reflector 5 is located on the first parabolic surface. The focal point of the visible light source 7 corresponds to that of the first parabolic surface. The visible light source 7 is reflected by the visible light reflector 5 and emitted as parallel light.

[0025] The infrared reflector 6 is annular and located at the center of the inner circle of the annular visible light source 7. The infrared light source 61 is located in the inner circle of the annular infrared reflector. The inner reflective surface of the infrared reflector 6 is located on the second parabolic surface. The focal points of the infrared light source 61 and the second parabolic surface correspond. The infrared light spot scattering angle reflected by the infrared reflector 6 is 18-25°. The infrared light source 61 is an infrared LED.

[0026] The visible light mode light distribution scheme of this application adopts a ring-shaped visible light source 7 and a parabolic visible light reflector 5 to meet the requirements of the signal light box to emit light indication signals, thereby achieving a visible light distribution scheme with uniform light spot, high light energy utilization, simple structure and good floodlight effect.

[0027] The infrared light distribution scheme adopts an infrared light source 61 and a parabolic infrared reflector 6. This scheme reduces the light output angle to 18-25° through the design of the infrared reflector 6, effectively controls the large-angle light output of the infrared light source 61, and has a good infrared focusing effect, making it suitable for infrared light distribution schemes of signal light boxes.

[0028] The light source assembly also includes a light-transmitting glass screen 1, which covers the light-emitting end face of the visible light reflector 5.

[0029] The dual-mode signal indicator for the aerial refueling system also includes a cover plate 8, a housing 3, and a pressure plate 2. Multiple light source components are provided, each with a different visible light source 7 color and a different wavelength of infrared light source 61. The housing 3 is fixed to the cover plate 8, and a sealing ring 4 is provided between the housing 3 and the cover plate 8. The light source components are installed at intervals within the housing 3. The cover plate 8 is provided with an electrical connector 9 for electrical connection with the visible light source 7 and the infrared light source 61. The pressure plate 2 is fixed to the housing 3 and is used to press the light-transmitting glass screen 1 firmly onto the housing 3. In this embodiment, there are three light source components. The visible light sources 7 of the three light source components are red, yellow, and green, respectively. The three light source components are infrared red light sources of different wavelengths, which can be processed to present different colors, such as through false-color synthesis technology.

[0030] The focal length of the generatrix of the first and second parabolic surfaces is defined as follows: The aperture of the light-emitting end of the inner reflective surface of both the visible light reflector 5 and the infrared reflector 6 is defined as... The depth of the inner reflective surfaces of both the visible light reflector 5 and the infrared reflector 6 is... ,focal length ,caliber and depth The relationship satisfies the following equation: .

[0031] The aperture of the light-emitting end of the inner reflective surface of the visible light reflector 5 The depth of the inner reflective surface of the visible light reflector 5 is 42-43 mm, with a value range of 42-43 mm. The value range is 5-6 mm. In this embodiment, the aperture of the light-emitting end of the inner reflective surface of the visible light reflector 5 is... The value is 42.8mm, which is the depth of the inner reflective surface of the visible light reflector 5. The value is 5.4mm, and the focal length of the first parabolic surface is approximately 21.2mm. In actual manufacturing, the focal length of the first parabolic surface can be directly taken as 21.2mm.

[0032] The aperture of the light-emitting end of the inner reflective surface of the infrared reflector 6 The depth of the inner reflective surface of the infrared reflector 6 is 12-13 mm, with a value range of 12-13 mm. The value range is 3-4 mm. The aperture of the light-emitting end of the inner reflective surface of the infrared reflector 6 described in this embodiment is... The value is 12.2 mm, which is the depth of the inner reflective surface of the infrared reflector 6. The value range is 3.45mm, and the focal length of the second parabolic surface is approximately 2.7mm. In actual manufacturing, the focal length of the second parabolic surface can be directly taken as 2.7mm.

[0033] The side of the translucent glass screen 1 facing away from the visible light reflector 5 is a convex curved surface, while the side of the translucent glass screen 1 facing the visible light reflector 5 is a flat surface. Several arrayed spherical lenses 10 are arranged on the side of the translucent glass screen 1 facing the visible light reflector 5, outside the range of the infrared reflector 6. This application uses multiple spherical lenses 10 to form a frosted surface on the inner side of the translucent glass screen 1 corresponding to the visible light emission range, which can disperse the concentrated emitted light. Because the surface of the frosted surface microstructure is not smooth enough, it will cause light distortion and scattering, resulting in a decrease in image clarity, thereby achieving the purpose of eliminating glare. This can better meet the light distribution requirements and eliminate glare spots. An infrared LED is placed at the center of the infrared reflector 6. Through the infrared reflector 6 and the smooth, unfrosted light-emitting surface 11, the large-angle emitted light of the infrared LED is effectively controlled, resulting in good light-gathering effect.

[0034] The visible light source 7 includes several circumferentially spaced and uniformly distributed visible light LEDs. The spacing between adjacent visible light LEDs is 'a', and the spacing between the visible light LEDs and the light-emitting end of the inner reflective surface of the visible light reflector is 'b'. The value of a / b ranges from 0.85 to 0.95, ensuring uniform light emission from the light-emitting surface. Combined with the frosted transparent glass screen 1 of this application, light energy can be evenly distributed within a 120° range. The transparent glass screen 1 redistributes the light energy, significantly reducing visual glare for the pilot and meeting the ergonomic design requirements of signal lights.

[0035] The light transmittance of a single visible light LED is 60 lm. The maximum output light intensity of the light emitted from a single visible light reflector 5 through the transparent glass screen 1 is 80-100 cd, and the minimum output light intensity is approximately 2-4 cd. The light spot scattering angle of the light emitted from a single visible light reflector 5 through the transparent glass screen 1 is 55-65°. This design ensures uniform distribution of the visible light spot and eliminates significant glare. In the embodiment of this application, the light spot scattering angle of the light emitted from a single visible light reflector 5 through the transparent glass screen 1 is 60°.

[0036] In this embodiment, the infrared LED chip has a size of 3.25mm × 3.25mm.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dual-mode signal indicator light for an aerial refueling system, characterized in that, It includes a light source assembly for emitting visible light and infrared light, the light source assembly including a visible light reflector, a visible light source, an infrared light reflector, and an infrared light source; The visible light reflector is annular, and the visible light source is distributed in annular form within the inner ring of the visible light reflector. The visible light reflector and the visible light source are coaxially arranged. The inner reflective surface of the visible light reflector is located on the first parabolic surface, and the focal point of the visible light source corresponds to that of the first parabolic surface. The infrared reflector is annular and located at the center of the inner circle of the visible light source. The infrared light source is located in the inner circle of the annular infrared reflector. The inner reflective surface of the infrared reflector is located on the second parabolic surface. The focal points of the infrared light source and the second parabolic surface correspond. The infrared light spot scattering angle reflected by the infrared reflector is 18-25°.

2. The dual-mode signal indicator for an aerial refueling system according to claim 1, characterized in that, The light source assembly also includes a light-transmitting glass screen, which covers the light-emitting end face of the visible light reflector. The side of the light-transmitting glass screen facing away from the visible light reflector is a convex curved surface, while the side of the light-transmitting glass screen facing the visible light reflector is a flat surface. Furthermore, a plurality of arrayed spherical lenses are provided on the side of the light-transmitting glass screen facing the visible light reflector in an area outside the range of the infrared light reflector.

3. The dual-mode signal indicator light for an aerial refueling system according to claim 1, characterized in that, The focal length of the generatrix of the first and second parabolic surfaces is defined as follows: The aperture of the light-emitting end of the inner reflective surface of both the visible light reflector and the infrared reflector is defined as... The depth of the inner reflective surface of both the visible light reflector and the infrared reflector is... ,focal length ,caliber and depth The relationship satisfies the following equation: .

4. The dual-mode signal indicator light for an aerial refueling system according to claim 3, characterized in that, The aperture of the light-emitting end of the inner reflective surface of the visible light reflector The depth of the inner reflective surface of the visible light reflector is 42-43 mm, with a value range of 42-43 mm. The value range is 5-6mm.

5. The dual-mode signal indicator light for an aerial refueling system according to claim 3, characterized in that, The aperture of the light-emitting end of the inner reflective surface of the infrared reflector The value ranges from 12 to 13 mm, and the depth of the inner reflective surface of the infrared reflector is... The value range is 3-4mm.

6. The dual-mode signal indicator for an aerial refueling system according to claim 1, characterized in that, The visible light source includes several visible light LEDs that are circumferentially spaced and uniformly distributed. The distance between adjacent visible light LEDs is 'a', and the distance between the visible light LEDs and the light-emitting end of the inner reflective surface of the visible light reflector is 'b'. The value of a / b ranges from 0.85 to 0.

95.

7. The dual-mode signal indicator light for an aerial refueling system according to claim 6, characterized in that... The light transmittance of a single visible LED lamp is 60lm, the maximum output light intensity of a single visible LED lamp is 80-100cd, the minimum output light intensity is about 2-4cd, and the light spot scattering angle of a single visible LED lamp is 55-65°.

8. The dual-mode signal indicator for an aerial refueling system according to claim 1, characterized in that... The dual-mode signal indicator for the aerial refueling system also includes a cover plate and a housing. The light source assembly is provided in multiple parts, each with a different visible light source color and a different infrared light source wavelength. The light source components are installed at intervals inside the housing on the housing fixing cover plate. The cover plate is provided with an electrical connector for electrical connection with visible light source and infrared light source.

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