Distributed optical fiber lighting system with concentrated light source and carrier

Abstract

The invention relates to a distributed optical fiber lamplight illumination system with a concentrated light source and a carrier. The distributed optical fiber lamplight illumination system comprises terminal illumination lamp bodies distributed on the carrier, concentrated light source equipment and a wire harness. The centralized light source equipment comprises a first female end optical interface and a lamp bead capable of transmitting light to the first female end optical interface; the wire harness comprises a transmission optical fiber, one end of the transmission optical fiber is connected to the first female end optical interface, and the other end of the transmission optical fiber is connected to the terminal illuminating lamp body. The terminal illuminating lamp bodies are used as illuminating devices on the carrier, whole-body arrangement can be carried out, the light source adopts the centralized light source equipment, light generated by the centralized light source equipment is transmitted to the terminal illuminating lamp bodies at different positions of the carrier through the transmission optical fibers, and lamplight illumination at different positions of the carrier is achieved. The light source is highly integrated, repeated arrangement of parts is reduced, and the cost of the carrier is reduced.

Description

Technical Field

[0001] This application relates to the field of fiber optic lighting technology, and in particular to a distributed fiber optic lighting system and carrier with a centralized light source. Background Technology

[0002] Currently in the automotive industry, the light source of car lights is distributed in various lamp bodies. For example, the front and rear headlights of a car have multiple LED beads inside each lamp body as the light source. In addition, a driver circuit board, a control circuit board, and a heat dissipation system for the LED beads, such as a fan and heat sink, are required to cooperate with the LED beads.

[0003] The light source, drive, control, and heat dissipation components are basically repeated on each light body. For example, the left and right front headlights of a car are two independent sets of different light sources, drives, controls, and heat dissipation systems.

[0004] This approach has some drawbacks, such as: (1) The lamp source, driver, control and heat dissipation of each lamp are set repeatedly, resulting in high cost and material waste; (2) Because the light source, driver, control and heat dissipation are dispersed in different lamp bodies, the energy utilization efficiency is not high, resulting in energy waste.

[0005] (3) Since the light source, drive, control, heat dissipation and other modules are generally located inside the front and rear headlights, and the front and rear headlights are generally located at the front and rear of the car, these positions are more likely to be involved in collisions, and the headlights are more likely to be damaged in car accidents. The light source, drive, control, heat dissipation and other modules located inside the headlights are more expensive, and once they are damaged in a collision, the repair costs are also higher. Summary of the Invention

[0006] This application provides a distributed fiber optic lighting system and carrier with a centralized light source to solve the problem of high cost in related lighting systems.

[0007] In a first aspect, a distributed fiber optic lighting system with a centralized light source is provided, comprising: Terminal lighting units distributed on vehicles; A centralized light source device, comprising a first female optical interface and LEDs capable of transmitting light to the first female optical interface; The wiring harness includes a transmission optical fiber, one end of which is connected to the first female optical interface and the other end of which is connected to the terminal lighting body.

[0008] In some implementations, the centralized light source device further includes a light converging device located between the first female optical interface and the LED, with one end of the light converging device facing the LED to receive light, and the other end of the light converging device connected to the first female optical interface.

[0009] In some implementations, the optical convergent is connected to the first female optical interface via a first optical fiber.

[0010] In some embodiments, the centralized light source device further includes an electrical interface connected to the lamp beads; And / or, centralized light source devices also include driving and control circuitry, which is connected to the lamp beads; And / or, centralized light source devices also include heat dissipation modules for connection to the heat dissipation system of the vehicle; And / or, the centralized light source device also includes a light source housing, the lamp beads are located inside the light source housing, and the first female optical interface is located on the light source housing.

[0011] In some embodiments, the transmission optical fiber is connected to male optical interfaces at both ends for insertion into the first female optical interface or the second female optical interface of the terminal lighting body.

[0012] In some embodiments, the cable harness includes multiple transmission optical fibers and a cable splitter, which splits the multiple transmission optical fibers into multiple branch bundles, each of which is connected to a different terminal lighting body.

[0013] In some embodiments, the terminal lighting body includes a lighting terminal component, a second female optical interface, and a second optical fiber, with one end of the second optical fiber connected to the lighting terminal component and the other end connected to the second female optical interface.

[0014] In some embodiments, the terminal lighting lamp body has multiple lighting terminal components; The terminal lighting body also includes a visible light wavelength splitter, one end of which is connected to the second mother optical interface, and the other end is connected to each lighting terminal component through multiple second optical fibers.

[0015] In some embodiments, the terminal lighting body further includes a lamp housing, the lighting terminal component is located inside the lamp housing, and the second female optical interface is located on the lamp housing.

[0016] In a second aspect, a vehicle is provided that includes a distributed fiber optic lighting system with a centralized light source as described in any of the above.

[0017] The beneficial effects of the technical solution provided in this application include: This application uses terminal lighting units as lighting devices on the vehicle, which can be arranged throughout the entire vehicle. The light source is a centralized light source device, and the light generated by the centralized light source device is transmitted to the terminal lighting units at different positions on the vehicle using optical fiber to achieve lighting at different positions on the vehicle. It can be seen that this application has highly integrated the light source, reduced the redundant setting of components, and reduced the cost of the vehicle.

[0018] This application removes the light sources from the original lamps located in different positions on the vehicle and instead centralizes them into a single, centralized light source device. By using optical fiber, the light source is kept away from the front and rear corners of the vehicle, which are prone to collisions, while ensuring illumination. This reduces the probability of these high-cost components being damaged in a collision. Even if damaged, only the terminal lighting unit needs to be replaced, not the light source, thus reducing maintenance costs. Furthermore, by transmitting the illumination light to each terminal lighting unit through optical fiber, the length of the copper cable in the original vehicle's lamps is significantly reduced, resulting in a substantial reduction in the weight of the wiring harness. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0020] Figure 1 A schematic diagram of a vehicle for a distributed fiber optic lighting system including a centralized light source, provided for an embodiment of this application; Figure 2 A schematic diagram of a centralized light source device provided in an embodiment of this application; Figure 3 This is a schematic diagram of a terminal lighting lamp body provided in an embodiment of this application; Figure 4 A schematic diagram of a wire harness provided in an embodiment of this application; Figure 5 A schematic diagram of a distributed fiber optic lighting system with a centralized light source provided in an embodiment of this application (excluding cable splitters); Figure 6 A schematic diagram of a wire harness with a cable splitter provided in an embodiment of this application; Figure 7 A schematic diagram of a distributed fiber optic lighting system with a centralized light source (including a cable splitter) provided in an embodiment of this application. Figure 8 This is a schematic diagram of a visible light wavelength splitter provided in an embodiment of this application; Figure 9A schematic diagram of a distributed fiber optic lighting system with a centralized light source (including a visible light wavelength demultiplexer) provided in an embodiment of this application. Figure 10 A schematic diagram of a distributed fiber optic lighting system with a centralized light source (using a light reflector layer) provided in an embodiment of this application. Figure 11 Another schematic diagram of a distributed fiber optic lighting system with a centralized light source provided in an embodiment of this application (using a light reflector layer); Figure 12 Another schematic diagram of a distributed fiber optic lighting system with a centralized light source provided in an embodiment of this application (using a main device and a backup device). Figure 13 Another schematic diagram of a distributed fiber optic lighting system with a centralized light source provided in an embodiment of this application (using a light collector).

[0021] In the picture: 1. Centralized light source equipment; 101. First female optical interface; 102. Lamp chip; 102a. Main lamp chip; 102b. Backup lamp chip; 103. First optical fiber; 104. Electrical interface; 105. Drive and control circuit; 106. Heat dissipation module; 107. Light source housing; 108. Optical convergent; 109. Photodetector; 1a. Main equipment; 1b. Backup equipment; 3. Terminal lighting body; 301. Second female optical interface; 302. Second optical fiber; 303. Lighting body housing; 4. Lighting terminal component; 401. Light reflective layer; 3a. Optical combiner; 301a. Optical combiner input terminal; 302a. Optical combiner output terminal; 5. Wire harness; 501. Male optical interface; 502. Cable splitter; 2. Transmission optical fiber; 5a. Monitoring fiber optic cable; 6. Visible light wavelength splitter; 601. Filter input end of the splitter; 602. Filter output end of the splitter; 603. Optical wavelength separation component; 6a. Light collector. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] See Figure 1As shown, this application provides a distributed fiber optic lighting system with a centralized light source, which includes a terminal lighting body 3, a centralized light source device 1, and a wiring harness 5.

[0024] Terminal lighting units 3 are used to be distributed on a vehicle, which can be a mobile vehicle such as a car or a fixed vehicle such as a building. For example, when applied to a car, terminal lighting units 3 can be used as headlights, taillights, turn signals, reading lights, starry sky dome lights, etc.

[0025] The centralized light source device 1 includes a first female optical interface 101 and an LED 102 that can transmit light to the first female optical interface 101.

[0026] Understandably, in this example, LED lamp 102 can be used to generate an LED light source.

[0027] Understandably, in this example, the number of LEDs 102 can be determined according to actual needs. For example, one LED 102 can be set, and correspondingly, the first female optical interface 101 can adopt a single-core optical interface. Alternatively, multiple LEDs 102 can be set, and correspondingly, the first female optical interface 101 can adopt a multi-core optical interface. Or, each LED 102 can adopt a single-core optical interface.

[0028] It is understandable that a single-core optical interface can allow one optical fiber to pass through, while a multi-core optical interface can allow multiple optical fibers to pass through.

[0029] The wiring harness 5 includes a transmission optical fiber 2, one end of which is connected to the first female optical interface 101, and the other end is connected to the terminal lighting body 3. The visible light emitted by the lamp bead 102 is transmitted to the terminal lighting body through the optical fiber to form lighting.

[0030] This application uses terminal lighting units as lighting devices on the vehicle, which can be arranged throughout the entire vehicle. The light source is a centralized light source device, and the light generated by the centralized light source device is transmitted to the terminal lighting units at different positions on the vehicle using optical fiber to achieve lighting at different positions on the vehicle. It can be seen that this application has highly integrated the light source, reduced the redundant setting of components, and reduced the cost of the vehicle.

[0031] This application removes the light sources from the original lamps located in different positions on the vehicle and instead centralizes them into a single, centralized light source device. By using optical fiber, the light source is kept away from the front and rear corners of the vehicle, which are prone to collisions, while ensuring illumination. This reduces the probability of these high-cost components being damaged in a collision. Even if damaged, only the terminal lighting unit needs to be replaced, not the light source, thus reducing maintenance costs. Furthermore, by transmitting the illumination light to each terminal lighting unit through optical fiber, the length of the copper cable in the original vehicle's lamps is significantly reduced, resulting in a substantial reduction in the weight of the wiring harness.

[0032] See Figure 2 As shown, the centralized light source device 1 also includes a light converging device 108, which is located between the first female optical interface 101 and the lamp bead 102. One end of the light converging device 108 faces the lamp bead 102 to receive light, and the other end of the light converging device 108 is connected to the first female optical interface 101.

[0033] One end of the light converging device 108 can receive the light emitted by the lamp bead 102, converge the light, and then emit it from the other end.

[0034] The aforementioned optical converging device is an optical focusing device, and includes several types based on different principles: Refraction principle: such as convex lenses, spherical mirrors, and combinations of multiple concave and convex lenses.

[0035] Reflection principle: For example, a concave mirror (used in the FAST astronomical telescope) focuses light through reflection.

[0036] Diffraction principle: For example, the light focusing mirror inside a lithography machine.

[0037] Gradient refractive index: such as the aspherical lens of an eyeglass.

[0038] In one example, the light emitted by the LED 102 is collected and focused directly onto the first female optical interface 101 or directly onto the transmission optical fiber 2 via an optical converging device.

[0039] In another example, the optical convergent 108 is connected to the first female optical interface 101 via the first optical fiber 103, thereby transmitting the light from the LED 102 to the first female optical interface 101.

[0040] The centralized light source device 1 also includes an electrical interface 104, which is connected to the lamp bead 102 to provide power to the lamp bead 102.

[0041] The centralized light source device 1 also includes a drive and control circuit 105, which is connected to the electrical interface 104 and the lamp beads 102 to realize the current regulation and control of the power supply to the lamp beads 102.

[0042] The centralized light source device 1 also includes a heat dissipation module 106 to dissipate heat from the device. For example, the heat dissipation module can use a fan to blow air outwards towards the LED beads 102, etc., to achieve heat dissipation. The heat dissipation module can also use heat dissipation pipes arranged within the centralized light source device 1, thereby allowing the heat dissipation module 106 to be connected to the vehicle's heat dissipation system. For example, the heat dissipation module 106 is interconnected with the heat dissipation pipes of the vehicle's power battery, and the heat generated within the centralized light source device 1 is conducted to the heat dissipation pipes, utilizing the power battery's liquid cooling system for efficient heat dissipation.

[0043] The centralized light source device 1 also includes a light source housing 107, with the lamp beads 102 located inside the light source housing 107 and the first female optical interface 101 located on the light source housing 107. The light source housing 107 is used to protect the internal lamp beads, optical fibers and other devices.

[0044] By integrating the light source, control board, driver board, heat dissipation module, etc., and then transmitting the signal to each terminal lighting unit via optical fiber, the system integration can be significantly improved, the duplication of components can be reduced, and the cost of the vehicle can be lowered.

[0045] By integrating the heat dissipation modules that were originally scattered in each lamp body, and further integrating them with the vehicle's heat dissipation system, the energy consumption of the heat dissipation components of the original vehicle lighting system can be significantly reduced, thereby lowering the overall vehicle energy consumption.

[0046] Integrating high-cost light sources, control drive circuits, and heat dissipation modules into a unified, centralized light source device, and using optical fibers to keep these components away from the front and rear corners of the vehicle where they are prone to collisions, can further reduce the probability of these high-cost components being damaged in a collision and lower maintenance costs.

[0047] By integrating the light source, control board, driver board, heat dissipation module, etc., and transmitting the lighting light to each centralized light source device through optical fiber, the length of the copper cable of the original vehicle lights is further reduced significantly, and the weight of the wiring harness is greatly reduced.

[0048] See Figure 3 , Figure 4 and Figure 5 As shown, the transmission optical fiber 2 is connected at both ends to male optical interfaces 501 for plugging into the first female optical interface 101 or the second female optical interface 301 of the terminal lighting body 3.

[0049] The first female optical interface 101 or the second female optical interface 301 can be easily plugged into the male optical interface 501, which improves assembly efficiency and facilitates disassembly and maintenance.

[0050] Among them, one of the first female optical interface 101 and the male optical interface 501 can be a fiber optic connector, and the other can be an adapter for plugging in to realize fiber optic splicing.

[0051] Similarly, in the second female optical interface 301 and the male optical interface 501, one can be a fiber optic connector and the other can be an adapter for plugging in to achieve fiber optic splicing.

[0052] As an example, the first female optical interface 101 and the second female optical interface 301 can be an adapter, while the male optical interface 501 can be a fiber optic connector.

[0053] It is understandable that a male optical interface 501 can also be provided at the end of the first optical fiber 103 to enable insertion with the first female optical interface 101.

[0054] It is understood that the wire harness 5 may include multiple transmission optical fibers 2, each of which is connected to a single-core male optical interface 501 at both ends, or the ends of multiple transmission optical fibers 2 may be connected to a multi-core male optical interface 501.

[0055] Understandably, the centralized light source device 1 may be far from the terminal lighting fixture 3, and the connection distance of a single wiring harness 5 may not be sufficient. In this case, it can be done as follows: Figure 5 As shown, multiple fiber bundles 5 are used for splicing. In one example, the transmission optical fibers 2 in two adjacent fiber bundles 5 can be spliced ​​using the male optical interface 501 at the end and a female optical interface (such as the first female optical interface 101 or the second female optical interface 301). In another example, in two adjacent fiber bundles 5, the interface at the end of one transmission optical fiber 2 and the interface at the end of the other transmission optical fiber 2 are a pair of fiber optic connectors that can be directly plugged in.

[0056] Since there may be multiple terminal lighting units 3, in order to facilitate wiring, avoid messy wiring harnesses, and facilitate subsequent maintenance, please refer to... Figure 6 and Figure 7 As shown, the cable harness 5 includes multiple transmission optical fibers 2 and a cable splitter 502. The cable splitter 502 splits the multiple transmission optical fibers 2 into multiple branch bundles, and each branch bundle is connected to a different terminal lighting body 3.

[0057] See Figure 3 As shown, the terminal lighting body 3 includes a lighting terminal component 4, a second female optical interface 301, and a second optical fiber 302. One end of the second optical fiber 302 is connected to the lighting terminal component 4, and the other end is connected to the second female optical interface 301.

[0058] The end of the second optical fiber 302 can also be provided with a male optical interface 501 to enable it to be plugged into the second female optical interface 301.

[0059] Understandably, the second female optical interface 301 can be a single-core optical interface or a multi-core optical interface, depending on the actual design requirements.

[0060] It is understood that the terminal lighting body 3 may include a lighting terminal component 4, and the light from a lamp bead 102 enters the lighting terminal component 4 through a first optical fiber 103, a transmission optical fiber 2, and a second optical fiber 302.

[0061] It is understood that the terminal lighting body 3 may include multiple lighting terminal components 4, such as... Figure 5 and Figure 7 As shown, the light from each LED 102 passes through a corresponding first optical fiber 103, transmission optical fiber 2, and second optical fiber 302 before entering the corresponding lighting terminal component 4.

[0062] Understandably, since the light coming out of the optical fiber is a point source (or an approximate point source), and a point source is difficult to illuminate a large area, the lighting terminal component 4 can use a diverging lens or a reflector bowl to diverge the light emitted from the second optical fiber 302 into the angle and shape required for lighting.

[0063] The terminal lighting body 3 also includes a visible light wavelength splitter 6, which splits the light to achieve different colors of lighting light.

[0064] Specifically, see Figure 8 and Figure 9 As shown, the terminal lighting body 3 has multiple lighting terminal components 4; the terminal lighting body 3 also includes a visible light wavelength splitter 6, one end of which is connected to the second female optical interface 301, and the other end is connected to each lighting terminal component 4 through multiple second optical fibers 302.

[0065] The visible light wavelength splitter 6 includes a wavelength splitter component 603, a splitter input end 601 connected to one end of the wavelength splitter component 603, and multiple splitter output ends 602 connected to the other end of the wavelength splitter component 603.

[0066] The input end 601 of the splitter is connected to the second female optical interface 301 through the second optical fiber 302, and the output end 602 of the splitter is connected to the lighting terminal component 4 through the second optical fiber 302.

[0067] The optical wavelength separation component 603 can split the light input from the input end 601 of the demultiplexer into multiple parts according to different wavelengths, and output them respectively from the output end 602 of the demultiplexer.

[0068] In the centralized light source device 1, the white light emitted by the lamp bead 102 is guided into the visible light wavelength splitter 6 through optical fiber. The light wavelength separation component 603 splits the light input from the input end 601 of the splitter into multiple parts according to different wavelengths, and outputs them from the output end 602 of the splitter respectively, so that different lighting terminal components 4 emit different colors of lighting light.

[0069] This example demonstrates how adding a visible light wavelength splitter enables the use of white LED beads 102 to achieve different colored lighting, such as ambient lighting of different colors in different locations inside a vehicle, and brake lights, turn signals, etc. outside the vehicle, thus saving on the number of LED beads required.

[0070] In this example, the visible light wavelength splitter 6 can use a prism to split white light into different colors, thereby obtaining light of different wavelengths; the visible light wavelength splitter 6 can use the diffraction and interference principle of a grating to obtain light of different wavelengths; the visible light wavelength splitter 6 can use the thin film interference principle and use a dichroic mirror to separate light into red, green and blue, thereby obtaining light of different wavelengths; the visible light wavelength splitter 6 can use an arrayed waveguide grating to obtain light of different wavelengths.

[0071] See Figure 3 As shown, the terminal lighting body 3 also includes a lamp body shell 303, the lighting terminal component 4 is located inside the lamp body shell 303, and the second female optical interface 301 is located on the lamp body shell 303. The lamp body shell 303 is used to protect the internal lighting terminal component, optical fiber and other devices.

[0072] It is understood that in this application, optical transmission connections of components are basically made through optical fibers. For example, the optical convergent 108 is connected to the first female optical interface 101 through optical fiber, the first female optical interface 101 is connected to the second female optical interface 301 through optical fiber, the second female optical interface 301 is connected to the visible light wavelength splitter 6 through optical fiber, and the visible light wavelength splitter 6 is connected to the lighting terminal component 4 through optical fiber.

[0073] Currently, in the automotive industry, copper cables are mainly used to transmit electrical energy to LED beads for illumination. Typically, each functional light has only one or a group of LED beads. When the power supply to this one or a group of LED beads is interrupted, or the beads are damaged, the lighting function will be lost. If the headlight power supply system suddenly fails while driving at high speeds at night, the vehicle will lose its headlight illumination function, which is extremely dangerous.

[0074] To solve the above problem, see Figure 10As shown in the embodiment of this application, the distributed fiber optic lighting system with a centralized light source has a backup function. The lamp beads 102 adopt a lamp bead group, which includes a main lamp bead 102a and a spare lamp bead 102b.

[0075] The optical combiner 3a has a light-combining output end 302a and multiple light-combining input ends 301a. Its light-combining output end 302a is connected to the lighting terminal component 4, specifically, via a transmission optical fiber 2. The actual function and principle of the optical combiner is that it has an internal waveguide structure that combines light entering from two or more light-combining input ends into a single light-combining output end.

[0076] The centralized light source device 1 includes a drive and control circuit 105, a photodetector 109, a first female optical interface 101, and a main lamp 102a and a spare lamp 102b that can transmit light to the first female optical interface 101.

[0077] The first female optical interface 101 is connected to the two light-combining input terminals 301a of the optical combiner 3a via two transmission optical fibers 2, so that the light emitted by the main lamp bead 102a and the spare lamp bead 102b is respectively introduced into the optical combiner 3a via the two transmission optical fibers 2. After the light is combined by the optical combiner 3a, it is transmitted to the same lighting terminal component 4 via the transmission optical fibers 2.

[0078] One end of the monitoring fiber optic cable 5a is used to acquire the light from the lighting terminal component 4, and the other end is connected to the photodetector 109 via the first female optical interface 101.

[0079] The drive and control circuit 105 is connected to the main lamp bead 102a, the spare lamp bead 102b and the photodetector 109, and is used to control the spare lamp bead 102b to be powered on when the main lamp bead 102a is powered on and the light intensity detected by the photodetector 109 is lower than the light intensity threshold.

[0080] When the fiber optic lighting system is operating normally, the main lamp bead 102a emits light, while the backup lamp bead 102b does not emit light. The photodetector 109 can continuously detect the light emitted by the main lamp bead 102a and reflected back through the lighting terminal component 4.

[0081] When the main lamp bead 102a or the transmission optical fiber 2 connecting the main lamp bead 102a and the optical combiner 3a is damaged, the lighting terminal component 4 cannot receive the light emitted by the main lamp bead 102a, and the photodetector 109 cannot detect the light reflected from the lighting terminal component 4 (i.e., the detected light intensity is 0). Or even if it is not damaged, the light intensity detected by the photodetector 109 is lower than the light intensity threshold, resulting in poor lighting and danger. At this time, the fiber optic lighting system starts the backup lamp bead 102b, that is, the light emitted from the backup lamp bead 102b can be transmitted to the lighting terminal component 4 through the transmission optical fiber 2, so that the fiber optic lighting system continues to operate.

[0082] This application employs two sets of light sources, one main and one backup. Visible light is transmitted to an optical combiner via optical fiber, and after combining, the light is output to the lighting terminal component via optical fiber. The light intensity of the lighting terminal component is detected by a photodetector. When there is a problem with the main light source, such as damage or power outage, the backup light source is activated to achieve backup lighting, ensuring that lighting needs can be met and reducing the risk of danger.

[0083] It is understandable that the aforementioned photodetector 109 converts the received optical signal into an electrical signal, thereby facilitating signal processing within the device. Many devices can be selected for the photodetector 109, including photodiodes, photomultipliers, photoresistors, CCDs, and CMOS sensors.

[0084] Furthermore, the drive and control circuit 105 is also connected to an alarm, which is used to control the alarm to sound when the spare lamp bead 102b is powered on and the light intensity detected by the photodetector 109 is lower than the light intensity threshold.

[0085] The purpose of setting up an alarm is to monitor the backup LED 102b. If the light intensity detected is still lower than the light intensity threshold after the backup LED 102b has been activated, it indicates that the backup LED 102b may also have a problem and needs to be repaired. If the vehicle is in operation, it can remind the driver to pay attention to safety because the backup LED also has a problem and the lighting effect is poor.

[0086] Understandably, the aforementioned light intensity threshold can be set manually according to actual needs.

[0087] To enable the light detector 109 to successfully detect light, see, as an example, Figure 10 , Figure 11 and Figure 12 As shown, the lighting terminal component 4 is provided with a light reflective layer 401 for reflecting the light received by the lighting terminal component 4; the monitoring optical fiber 5a is connected to the lighting terminal component 4 to receive the light reflected by the light reflective layer 401.

[0088] The lighting terminal component 4 is connected to the photodetector 109 via the monitoring optical fiber 5a. It can reflect the light from the main lamp bead 102a through the light reflection layer 401 into the monitoring optical fiber 5a and transmit it to the photodetector 109.

[0089] It is understandable that glass reflects light from air due to the difference in refractive index, so the light-reflecting layer 401 can be the surface of the glass itself. Of course, to improve the reflection effect, a coating can be applied, which is usually a metal coating, to form the light-reflecting layer 401.

[0090] To enable the light detector 109 to successfully detect light, see another example. Figure 13 As shown, the monitoring fiber optic cable 5a is connected to a light collector 6a for collecting the light received by the lighting terminal component 4.

[0091] By replacing the light reflector layer 401 on the lighting terminal component 4 with a light collector 6a, the light from the lighting terminal component 4 is collected and fed back to the light detector 109.

[0092] It is understandable that the aforementioned light collector 6a can use a lens group or a tapered optical waveguide to focus external light and guide it into an optical fiber.

[0093] Understandably, since the light coming out of the optical fiber is a point source (or an approximate point source), and a point source is difficult to illuminate a large area, the lighting terminal component 4 can use a diverging lens or a reflector bowl to diverge the light into the angle and shape required for lighting.

[0094] See Figure 10 As shown, the main LED 102a, the spare LED 102b, and the photodetector 109 are each individually configured with a single-core first female optical interface 101, so that the main LED 102a, the spare LED 102b, and the photodetector 109 can transmit light individually through the transmission fiber 2 or the monitoring fiber 5a via the corresponding single-core first female optical interface 101.

[0095] See Figure 11 As shown, the main LED 102a, the spare LED 102b, and the photodetector 109 share a multi-core first female optical interface 101, so that the main LED 102a, the spare LED 102b, and the photodetector 109 all transmit light through the multi-core first female optical interface 101 via the transmission optical fiber 2 or the monitoring optical fiber 5a.

[0096] Alternatively, among the main LED 102a, the spare LED 102b, and the photodetector 109, one of them may be configured with a single-core first female optical interface 101, while the rest may share a multi-core first female optical interface 101.

[0097] It should be noted that in this application, when using optical fiber for connection, the optical fiber can be connected to the object to be connected by using optical fiber connectors and adapters, so as to achieve the purpose of connection while facilitating disassembly, assembly, and maintenance.

[0098] For example, the optical output terminal 302a and the optical input terminal 301a of the optical combiner 3a can both be equipped with a female optical interface (such as the first female optical interface 101) that is compatible with the male optical interface 501 of the transmission optical fiber 2 to achieve plug-in. The female optical interface can be a single-core or multi-core optical interface, which can be selected according to actual needs.

[0099] When backing up the main LED 102a in this application, the following method can be used: Figure 10 and Figure 11 The diagram shows a scheme that uses a single light source device for internal light source backup.

[0100] Alternatively, two light source devices can be used, with one light source device serving as a backup for the other. In this case, the two light source devices are similar in composition, with the main difference being that one light source device has a monitoring fiber optic cable 5a and a photodetector 109.

[0101] Specifically, such as Figure 12 As shown, the centralized light source device 1 includes a main device 1a and a backup device 1b; the main device 1a includes a first female optical interface 101 and a main lamp bead 102a that can transmit light to the first female optical interface 101. The drive and control circuit 105 in the main device 1a mainly realizes the current regulation and control of the power supply to the main lamp bead 102a.

[0102] The backup device 1b includes a first female optical interface 101, a backup LED 102b that can transmit light to the first female optical interface 101, a drive and control circuit 105, and a photodetector 109. In addition to regulating and controlling the current supply to the backup LED 102b, the drive and control circuit 105 in the backup device 1b also receives the power-on status of the main LED 102a from the drive and control circuit 105 in the main device 1a. When the main LED 102a is powered on normally and the light intensity detected by the photodetector 109 is lower than the light intensity threshold, the backup LED 102b is powered on.

[0103] See Figure 10 As shown, the centralized light source device 1 also includes a light concentrator 108.

[0104] A light converging device 108 is provided between the main lamp bead 102a and the first female optical interface 101. One end of the light converging device 108 faces the main lamp bead 102a to receive light, and the other end of the light converging device 108 is connected to the first female optical interface 101.

[0105] A light converging device 108 is provided between the spare LED 102b and the first female optical interface 101. One end of the light converging device 108 faces the spare LED 102b to receive light, and the other end of the light converging device 108 is connected to the first female optical interface 101.

[0106] See Figure 1 As shown in the figure, this application embodiment also provides a vehicle that includes the aforementioned distributed fiber optic lighting system with a centralized light source.

[0107] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0108] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0109] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A distributed fiber optic lighting system with a centralized light source, characterized in that, It includes: (3) Terminal lighting units distributed on the vehicle; A centralized light source device (1) includes a first female optical interface (101) and an LED (102) that can transmit light to the first female optical interface (101). The wiring harness (5) includes a transmission optical fiber (2), one end of which is connected to the first female optical interface (101) and the other end is connected to the terminal lighting body (3).

2. The distributed fiber optic lighting system with a centralized light source as described in claim 1, characterized in that: The centralized light source device (1) also includes a light converging device (108), which is located between the first female end light interface (101) and the lamp bead (102). One end of the light converging device (108) faces the lamp bead (102) to receive light, and the other end of the light converging device (108) is connected to the first female end light interface (101).

3. The distributed fiber optic lighting system with a centralized light source as described in claim 2, characterized in that: The optical convergent (108) is connected to the first female optical interface (101) via the first optical fiber (103).

4. The distributed fiber optic lighting system with a centralized light source as described in claim 1, characterized in that: The centralized light source device (1) also includes an electrical interface (104) which is connected to the lamp beads (102); And / or, the centralized light source device (1) further includes a drive and control circuit (105) connected to the lamp beads (102); And / or, the centralized light source device (1) also includes a heat dissipation module (106) for connection to the heat dissipation system of the vehicle. And / or, the centralized light source device (1) further includes a light source housing (107), the lamp beads (102) are located inside the light source housing (107), and the first female optical interface (101) is located on the light source housing (107).

5. The distributed fiber optic lighting system with a centralized light source as described in claim 1, characterized in that: The transmission optical fiber (2) has male optical interfaces (501) at both ends for plugging into the first female optical interface (101) or the second female optical interface (301) of the terminal lighting body (3).

6. The distributed fiber optic lighting system with a centralized light source as described in claim 1, characterized in that: The cable bundle (5) includes multiple transmission optical fibers (2) and a cable splitter (502), which splits the multiple transmission optical fibers (2) into multiple branch bundles, each of which is connected to a different terminal lighting body (3).

7. The distributed fiber optic lighting system with a centralized light source as described in claim 1, characterized in that: The terminal lighting body (3) includes a lighting terminal component (4), a second female optical interface (301), and a second optical fiber (302). One end of the second optical fiber (302) is connected to the lighting terminal component (4), and the other end is connected to the second female optical interface (301).

8. The distributed fiber optic lighting system with a centralized light source as described in claim 7, characterized in that: The terminal lighting body (3) contains multiple lighting terminal components (4); The terminal lighting body (3) also includes a visible light wavelength splitter (6), one end of which is connected to the second mother optical interface (301), and the other end is connected to each lighting terminal component (4) through multiple second optical fibers (302).

9. The distributed fiber optic lighting system with a centralized light source as described in claim 1, characterized in that: The terminal lighting body (3) also includes a lamp body shell (303), the lighting terminal component (4) is located inside the lamp body shell (303), and the second female end optical interface (301) is located on the lamp body shell (303).

10. A vehicle, characterized in that, It includes a distributed fiber optic lighting system with a centralized light source as described in any one of claims 1 to 9.

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