A navigational lighting device

Abstract

This application relates to the field of airport navigation aids technology, and more particularly to a navigation lighting device, including a lamp housing assembly, a composite optical assembly, and a power supply assembly. The lamp housing assembly includes a lampshade and a lamp tube. The lampshade is connected to the top of the lamp tube via a connecting plate. The lampshade has a first chamber, in which the composite optical assembly is disposed. A second chamber is formed inside the lamp tube, and the power supply assembly is disposed inside the second chamber. The composite optical assembly includes a light source, a spherical mirror, a reflector, and a diffractive optical element. The light source is connected to the connecting plate. The spherical mirror is a convex mirror, with its convex end facing the light source. The reflector has a through-type frustum design, with one end facing the spherical mirror and the other end connected to the diffractive optical element. The surface of the diffractive optical element is circular, and the diffractive optical element abuts against the light outlet of the lampshade. This application has the ability to improve the luminous efficiency of LEDs.

Description

Technical Field

[0001] This application relates to the field of airport navigation aids technology, and in particular to a navigation lighting device. Background Technology

[0002] In the aviation industry, with its rapid development, airport operational efficiency and safety have become crucial issues. Aircraft takeoffs and landings require precise guidance, especially at night, in low visibility, or in complex weather conditions. Navigational lighting equipment has emerged to address this need. With advancements in microelectronics, computer technology, and network communication technology, navigational lighting control systems have achieved remote control, real-time monitoring, and intelligent management. They can automatically adjust the brightness and color of the lights according to environmental and flight conditions to provide optimal navigational assistance.

[0003] In the prior art, navigation lighting equipment typically includes a light source assembly, a control panel, and a lampshade. The light source assembly includes a light source and a spherical mirror. The spherical mirror is used to focus the light emitted by the light source. The control panel is connected to the light source and controls the light source to turn on and off. The lampshade surrounds and protects the light source assembly and the control panel.

[0004] Regarding the aforementioned technologies, although focusing light with a single spherical lens can partially compress the beam divergence angle, it suffers from insufficient beam uniformity, resulting in poor luminous efficiency of the light source. Summary of the Invention

[0005] In order to improve the luminous efficiency of the light source, this application provides a navigation lighting device.

[0006] The navigation lighting device provided in this application adopts the following technical solution:

[0007] A navigation lighting device: comprising a lamp housing assembly, a composite optical assembly, and a power supply assembly;

[0008] The lamp housing assembly includes a lampshade and a lamp tube. The lampshade is connected to the top of the lamp tube via a connecting plate. The lampshade has a first chamber, and the composite optical component is disposed in the first chamber. The lamp tube has a second chamber, and the power supply component is disposed inside the second chamber.

[0009] The composite optical assembly includes a light source, a spherical mirror, a reflector, and a diffractive optical element. The light source, spherical mirror, reflector, and diffractive optical element are arranged sequentially along the same axis. The light source is connected to a connecting plate. The spherical mirror is a convex mirror with its convex end facing the light source. The reflector has a through-type frustum design, with one end of the reflector with a larger inner diameter facing the spherical mirror and the other end of the reflector with a smaller inner diameter connected to the diffractive optical element. The surface of the diffractive optical element is circular, and the diffractive optical element abuts against the light outlet of the reflector.

[0010] By employing the above technical solution, when the light source is illuminated, the light beam first passes through a spherical mirror. After initial focusing by the spherical mirror, the beam converges to a reflector for a second focusing. The reflector then reflects the edge beams back to the beam-converging area. The converged beam then passes through a diffractive optical element for a third focusing. The surface of the diffractive optical element has periodic microstructures, each of which modulates the light path by changing the phase of the light wave. By precisely designing the phase delay at each position, constructive interference occurs between light from different regions at the target point, thus focusing the beam. Finally, the focused beam exits through the light outlet of the lamp cover. This three-stage focusing effectively improves the luminous efficiency of the light source.

[0011] Optionally, the power supply assembly includes a battery pack, a control board, a display screen, and a device switch. The battery pack is connected to the light source via the control board. The display screen is connected to the control board. A display screen mounting slot is provided on the surface of the lamp tube, and the display screen is embedded in the surface of the lamp tube through the display screen mounting slot. The device switch is connected to the control board. A switch mounting slot is provided on the surface of the lamp tube, and the device switch is embedded in the surface of the lamp tube through the switch mounting slot. A charging port is provided on the surface of the lamp tube.

[0012] By adopting the above technical solution, the battery pack provides power to the light source, and the energy storage status of the battery pack is displayed on the screen via the control board. Furthermore, the navigation lights can be turned on via a switch, and if the battery pack runs out of power, the device can be charged through the charging port, thus achieving a recycling effect.

[0013] Optionally, the light source is an LED lamp.

[0014] By adopting the above technical solutions, LEDs have the characteristics of high brightness, high efficiency, energy saving and environmental protection, and long service life, which can effectively improve the economic efficiency of equipment.

[0015] Optionally, the connecting plate is provided with a lamp handle.

[0016] By adopting the above technical solution, workers can grasp and move the equipment using the lamp handle, which also makes the installation process more convenient.

[0017] Optionally, the lamp tube surface is provided with several heat dissipation holes.

[0018] By adopting the above technical solution, the heat dissipation holes enable the light source to dissipate heat effectively during long-term operation, thus preventing the light source from overheating and affecting the light output effect.

[0019] Optionally, the connection board is provided with a signal antenna, which is communicatively connected to the control board.

[0020] By adopting the above technical solution, staff can remotely turn the equipment on and off using a signal antenna, improving the convenience of the equipment.

[0021] Optionally, the bottom of the lamp tube is provided with a chassis to support the navigation lighting equipment, and the chassis is connected to the bottom of the lamp tube by a first bolt.

[0022] By adopting the above technical solution, the design allows the lamp to be opened by turning the first bolt when the internal equipment is damaged or needs to be replaced, so that the internal equipment can be inspected.

[0023] Optionally, the connecting plate is connected to the top of the lamp tube by a second bolt and provides support for the installation of the composite optical components.

[0024] By adopting the above technical solution, the composite optical component can be installed inside the lampshade and the lampshade can be set on the top of the connecting plate, thereby reducing the size of the equipment and protecting the composite optical component through the lampshade so that the composite optical component is not interfered with during operation.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. When the light source is turned on, the light beam first passes through a spherical mirror. After initial focusing by the spherical mirror, the beam converges to a reflector for a second focusing. The reflector then reflects the edge beams back to the beam-converging area. The converged beam then passes through a diffractive optical element for a third focusing. The surface of the diffractive optical element has periodic microstructures, each of which modulates the light path by changing the phase of the light wave. By precisely designing the phase delay at each position, constructive interference occurs between light from different regions at the target point, thus focusing the beam. Finally, the focused beam exits through the light outlet of the lamp cover. This three-stage focusing effectively improves the luminous efficiency of the light source.

[0027] 2. The battery pack provides power to the light source, and the energy storage status of the battery pack is displayed on the screen via the control board. Furthermore, the device can be switched on and off via a switch. If the battery pack is depleted, the device can be charged via the charging port, thus achieving a recycling effect.

[0028] 3. The heat dissipation holes allow the light source to effectively dissipate heat during long-term operation, preventing overheating and affecting the light output. Attached Figure Description

[0029] Figure 1 This is an overall schematic diagram of the navigation lighting equipment in Embodiment 1 of this application.

[0030] Figure 2This is a top view of the lamp housing assembly in Embodiment 1 of this application.

[0031] Figure 3 This is a front view of the navigation lighting device in Embodiment 1 of this application.

[0032] Figure 4 This is a cross-sectional schematic diagram of the navigation lighting equipment in Embodiment 1 of this application.

[0033] Figure 5 This is a rear view of the navigation lighting equipment in Embodiment 1 of this application.

[0034] Figure 6 This is a schematic diagram of the connection of the control board in Embodiment 2 of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Lamp housing assembly; 101. First chamber; 102. Second chamber; 103. Heat dissipation hole; 11. Lampshade; 12. Lamp tube; 13. Connecting plate; 14. Lamp handle; 15. Chassis; 16. First bolt; 17. Second bolt; 2. Composite optical assembly; 21. Light source lamp; 22. Spherical mirror; 23. Reflector; 24. Diffractive optical element; 3. Power supply assembly; 301. Display screen mounting slot; 302. Switch mounting slot; 303. Charging port; 31. Battery pack; 32. Control board; 33. Display screen; 34. Equipment switch; 35. Copper column; 36. Signal antenna. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0037] Example 1:

[0038] Embodiment 1 of this application discloses a navigation lighting device, referring to... Figure 1 The navigation lighting equipment includes a lamp housing assembly 1, a composite optical assembly 2, and a power supply assembly 3.

[0039] Reference Figure 1 and 2 The lamp housing assembly 1 includes a lampshade 11 and a lamp tube 12. The lampshade 11 is connected to the top of the lamp tube 12 via a connecting plate 13. The lampshade 11 is fixedly connected to the connecting plate 13, which is connected to the top of the lamp tube 12 via a second bolt 17 and provides support for the installation of the composite optical component 2. The connecting plate 13 also has a lamp handle 14, which allows workers to easily and safely transport the equipment, improving its portability. The lampshade 11 has a first chamber 101 for housing the composite optical component 2. The lampshade 11 not only protects the composite optical component 2 from external interference during operation but also reduces the size of the equipment, making it convenient for workers to carry and transport.

[0040] Reference Figure 2 The lamp tube 12 has a second chamber 102 inside, and the power supply component 3 is located inside the second chamber 102. A base 15 for supporting the navigation lighting equipment is also provided at the bottom of the lamp tube 12. The base 15 is connected to the bottom of the lamp tube 12 by a first bolt 16. The design of the base 15 not only protects the power supply component 3, but also allows for easy disassembly of the base 15 by turning the first bolt 16 in case of damage to the power supply component 3, exposing the power supply component 3 from the second chamber 102. This facilitates the maintenance and replacement of the power supply component 3, improving the convenience of the equipment. Furthermore, several heat dissipation holes 103 are also provided through the surface of the lamp tube 12, all of which are connected to the second chamber 102, to provide heat dissipation for the power supply component 3 during prolonged operation.

[0041] Reference Figure 3 and Figure 4 The composite optical component 2 includes a light source 21, a spherical mirror 22, a reflector 23, and a diffractive optical element 24. The light source 21, spherical mirror 22, reflector 23, and diffractive optical element 24 are arranged sequentially from the lamp tube 12 to the lamp cover 11 along the same axis. The light source 21 is fixedly connected to the connecting plate 13, and the light source 21 uses an LED light as its light source. LED lights have significant advantages, including energy saving, long lifespan, safety and stability, and environmental friendliness. They can be used for extended periods, operate at low temperatures without becoming hot to the touch, and reduce the risk of fire.

[0042] Reference Figure 3 and Figure 4 The spherical mirror 22 is a convex mirror, with its convex end facing the light source 21. The spherical mirror 22 can initially focus the light beam emitted by the light source 21. The reflector 23 has a through-type frustum design, with one end of the reflector 23 with a smaller inner diameter facing the spherical mirror 22. This allows the light beam initially focused by the spherical mirror 22 to converge into the interior of the reflector 23, where it is then focused a second time by the sidewalls inside the reflector 23. The other end of the reflector 23 with a larger inner diameter is connected to the diffractive optical element 24, which abuts against the light outlet of the lamp cover 11. The diffractive optical element (DOE) 24 has a circular surface and periodic microstructures. These microstructures are made by resin imprinting, and each microstructure modulates the light path through diffraction. This involves using the microstructure of the element's surface to rearrange the phase, amplitude, or polarization state of the incident light, causing a redistribution of the light wave during transmission. This allows the light wave to exit at a desired angle, thereby adjusting the size and shape of the illumination range and facilitating a third focusing of the light wave. The diffractive optical element 24 abuts against the light outlet of the lampshade 11.

[0043] Reference Figure 4 and Figure 5 The power supply assembly 3 includes a battery pack 31, a control board 32, a display screen 33, and a device switch 34. The battery pack 31 is electrically connected to the light source 21 via the control board 32, and is also connected to the control board 32. The control board 32 is connected to the light source 21 via copper pillars 35 and provides power to the light source 21, enabling it to emit a light beam. The display screen 33 is connected to the control board 32. A display screen mounting groove 301 is provided on the surface of the lamp tube 12, and the display screen 33 is embedded in the surface of the lamp tube 12 through the display screen mounting groove 301. The control board 32 monitors and transmits the battery power information of the battery pack 31 to the display screen 33 for display. The device switch 34 is connected to the control board 32. A switch mounting groove 302 is provided on the surface of the lamp tube 12, and the device switch 34 is embedded in the surface of the lamp tube 12 through the switch mounting groove 302. A charging port 303 is provided on the surface of the lamp tube 12. This allows the navigation lights to be turned on via the device switch 34. If the battery pack 31 is out of power, the device can be charged via the charging port 303, thus achieving a recycling effect.

[0044] The implementation principle of the navigation lighting device in Embodiment 1 of this application is as follows: the power supply component 3 illuminates the LED light source component and emits a light beam through the current. The light beam first passes through the spherical mirror 22. After being initially focused by the spherical mirror 22, the light beam converges to the reflector 23 and is focused a second time. The reflector 23 refracts the edge light beam back to the light convergence area. The converged light beam is then focused a third time through the diffraction optical element 24. Finally, the light beam is emitted from the light outlet of the lamp cover 11. The triple focusing design can effectively improve the luminous efficiency of the LED light source component.

[0045] Example 2:

[0046] Embodiment 2 of this application discloses a navigation lighting device, which, in addition to all the technical features of Embodiment 1, also includes the following technical features:

[0047] Reference Figure 5 and Figure 6 The control board 32 is also equipped with a Beidou positioning module, a light intensity adjustment module, and a signal antenna 36. The Beidou positioning module allows staff to locate the equipment via satellite, facilitating adjustments to the lighting type and enabling timely location during equipment maintenance. The light intensity adjustment module and signal antenna 36 allow staff to adjust the lighting intensity remotely. The signal antenna 36 receives communication signals transmitted by staff, and upon receiving the signal, the light intensity adjustment module adjusts the light intensity of the LED light source 21 to meet technical requirements.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A navigational lighting device, characterized in that: It includes a lamp housing assembly (1), a composite optical assembly (2), and a power supply assembly (3); The lamp housing assembly (1) includes a lampshade (11) and a lamp tube (12). The lampshade (11) is connected to the top of the lamp tube (12) via a connecting plate (13). The lampshade (11) has a first chamber (101). The composite optical component (2) is disposed in the first chamber (101). The lamp tube (12) has a second chamber (102). The power supply component (3) is disposed inside the second chamber (102). The composite optical component (2) includes a light source (21), a spherical mirror (22), a reflector (23), and a diffractive optical element (24). The light source (21), spherical mirror (22), reflector (23), and diffractive optical element (24) are arranged sequentially along the same axis. The light source (21) is connected to a connecting plate (13). The spherical mirror (22) is a convex mirror with its convex end facing the light source (21). The reflector (23) has a through-type frustum design. One end of the reflector (23) with a larger inner diameter faces the spherical mirror (22), and the other end of the reflector (23) with a smaller inner diameter is connected to the diffractive optical element (24). The surface of the diffractive optical element (24) is circular, and the diffractive optical element (24) abuts against the light outlet of the lamp cover (11).

2. The navigational lighting device according to claim 1, characterized in that: The power supply assembly (3) includes a battery pack (31), a control board (32), a display screen (33), and a device switch (34). The battery pack (31) is connected to the light source (21) through the control board (32). The display screen (33) is connected to the control board (32). The lamp tube (12) has a display screen mounting groove (301) on its surface. The display screen (33) is embedded in the surface of the lamp tube (12) through the display screen mounting groove (301). The device switch (34) is connected to the control board (32). The lamp tube (12) has a switch mounting groove (302) on its surface. The device switch (34) is embedded in the surface of the lamp tube (12) through the switch mounting groove (302). The lamp tube (12) has a charging port (303) on its surface.

3. The navigational lighting device according to claim 1, characterized in that: The light source (21) is an LED light fixture.

4. The navigational lighting device according to claim 1, characterized in that: The connecting plate (13) is provided with a lamp handle (14).

5. A navigational lighting device according to claim 1, characterized in that: The lamp tube (12) has several heat dissipation holes (103) on its surface.

6. The navigational lighting device according to claim 1, characterized in that: The connecting plate (13) is provided with a signal antenna (36), which is communicatively connected to the control plate (32).

7. The navigational lighting device according to claim 1, characterized in that: The bottom of the lamp tube (12) is provided with a chassis (15) for supporting the navigation lighting equipment. The chassis (15) is connected to the bottom of the lamp tube (12) by a first bolt (16).

8. A navigational lighting device according to claim 1, characterized in that: The connecting plate (13) is connected to the top of the lamp tube (12) by a second bolt (17) and provides support for the installation of the composite optical assembly (2).

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