VEHICLE LAMP WITH ROTATING LIGHT SOURCE

Abstract

Vehicle lamp with a rotating light source, comprising: a signal transmitter configured to receive a signal from one or more sensors mounted inside a vehicle, a light-emitting diode (LED) unit which is equipped with one or more LED elements configured to emit light outside the vehicle; a controller that is configured to receive the signal from the signal transmitter; a power transmitter and a power receiver configured to receive an applied voltage from the controller, which is to be applied to one or more LED elements, and to apply the applied voltage to each of the one or more LED elements, and a driver configured to rotate the LED unit, wherein the controller is configured to determine an image shape according to the signal, and to calculate the applied voltage to be applied to one or more of the LED elements according to the calculated image shape, wherein the LED unit is fixed to a rotating shaft that protrudes from the driver to the outside of the vehicle, the power receiver is mounted on the LED unit, which is to be electrically connected to one or more of the LED elements, and the power transmitter, the control unit and the signal transmitter are located and fixed on one side of the driver, wherein the signal contains one or more angles of a front vehicle, a front image of the vehicle and a rear image of the vehicle from the center line of the front and rear of the vehicle, the signal transmitter is configured to receive a lamp switching operating signal, an upward light operating signal and a speed (RPM) of the driver, in addition to the signal and the controller is configured to select any one of one or more image shapes that are stored according to different signals received from the signal transmitter, wherein the applied voltage to one or more LED elements from the power transmitter is applied by electromagnetic induction, which is generated between the power transmitter and the power receiver when the LED unit rotates.

Description

BACKGROUND Area of ​​Revelation

[0001] The present disclosure relates to a vehicle lamp with a rotating light source, and more specifically to a vehicle lamp with a rotating light source in which the number of light-emitting diodes (LEDs) provided is reduced and heat dissipation performance is improved. based on related state of the art

[0002] Matrix headlight technology is currently being applied to vehicle headlights. To implement this technology, one or more LED elements are concentrated within the headlight. By controlling the light emission of the LED element, only the light expected to reach the driver of an oncoming vehicle during high beam operation is removed or switched off. A further technology for projecting a specific type of light onto the front surface of the vehicle has also been developed, achieved by locating a liquid crystal display (LCD) screen on the front surface of one or more LED elements and modifying the transparency of the LCD screen to achieve a specific shape.

[0003] To implement matrix headlight technology, a circuit for independently controlling each LED element is required. Additionally, a significant number of large and small LED elements, such as micro-LEDs and pixel lighting, are necessary. However, the LED element generates heat during light emission. When an increased number of large and small LED elements are concentrated on a circuit board (PCB), the generated heat becomes excessive, reducing the auxiliary resistance efficiency of both the PCB and the LED element. Furthermore, because the interval between the LED elements is minimized, but the LED elements do not overlap, the emitted light inevitably exhibits a boundary.

[0004] The content described in this section is intended only to aid in understanding the background of the present revelation and may contain information that is not previously known to experts in the field to which the present revelation belongs.

[0005] German patent application DE 10 2016 214 397 A1 discloses a light source that illuminates a distant area in front of a vehicle at a specific point. The on / off switch supplies a drive current to activate the light source. The swivel mechanism swivels the light source. The on / off switch reduces the amount of light emitted by the light source when the swivel angle θ of the swivel mechanism is large. SUMMARY

[0006] Accordingly, one objective of the present disclosure, considering the above point, is to provide a vehicle lamp with a rotating light source which can improve the thermal resistance performance when the number of LED elements is reduced, and generate surface emission without a boundary line.

[0007] The problem is solved by the independent claims. For example, a vehicle lamp with a rotating light source according to the present disclosure can include a signal transmitter configured to receive a signal from one or more sensors mounted inside a vehicle, an LED unit comprising one or more LED elements configured to emit light outside the vehicle, a controller configured to receive the signal from the signal transmitter, a power transmitter and a power receiver configured to receive an applied voltage from the controller and to apply the applied voltage to each of the one or more LED elements, and a driver configured to rotate the LED unit.The controller can be configured to determine an image shape according to the signal and to calculate the applied voltage to be applied to one or more of the LED elements according to the determined image shape.

[0008] Additionally, the LED unit can be fixed to a rotating shaft extending from the driver to the outside of the vehicle. The power receiver can be mounted on the LED unit and electrically connected to one or more of the LED elements. The power transmitter, controller, and signal transmitter can be located and fixed on one side of the driver. The signal can include one or more angles of a front view of the vehicle, a front view of the vehicle, and a rear view of the vehicle measured from the center line of the front and rear of the vehicle. The signal transmitter can be configured to receive a lamp switching operating signal, an upward light operating signal, and the driver's rotational speed (RPM) in addition to the signal. The controller can be configured to select any one of several stored image shapes based on various signals received from the signal transmitter.

[0009] Additionally, the applied voltage can be applied to one or more LED elements from the power transmitter via a slip ring or a gear located between the power transmitter and the power receiver. The applied voltage can also be applied to one or more LED elements from the power transmitter by electromagnetic induction generated between the power transmitter and the power receiver when the LED unit rotates.

[0010] The power transmitter and power receiver can contain a PCB, and the PCB can include two or more pattern surfaces on which a circuit pattern is printed, and an insulating filler placed between the two or more pattern surfaces. The circuit surfaces printed on the two or more pattern surfaces can be connected to form a coil shape. The circuit pattern can include a first side-end region projecting from the lower part of the pattern surface, a second side-end region projecting from the upper part of the pattern surface, and a central region connecting the first and second side-end regions, located on the pattern surface as a ring shape.

[0011] Additionally, the vehicle lamp with the rotating light source can further include an optical system arranged on the front surface of the LED unit, which serves to direct light generated by one or more LED elements in a specific direction. The vehicle lamp with the rotating light source can also include a reflector and a screen, arranged on the front surface of the LED unit, for directing light generated by the one or more LED elements in a specific direction.

[0012] Furthermore, a vehicle lamp with a rotating light source according to the present disclosure can include a signal transmitter configured to receive a signal from one or more sensors provided in a vehicle, an LED unit comprising one or more LED elements configured to emit light outside the vehicle, a controller configured to receive the signal from the signal transmitter, a power transmitter and a power receiver configured to receive an applied voltage from the controller to be applied to the one or more LED elements and to apply the applied voltage to each of the one or more LED elements, a drive guide to which the LED unit can be fixed, and a driver configured to move the drive guide, and the controller can be configured to determine an image shape based on the signal and to apply the applied voltage.which are to be applied to one or more LED elements, according to the calculated image shape.

[0013] The drive unit can include a rail with an end section fixed to a rotating shaft extending from the driver to the outside of the vehicle. One or more LED elements can be fixed to the rail. The power receiver can be mounted on the rail to be electrically connected to the one or more LED elements. The power transmitter can be formed along the trajectory of the rail, which is generated when the rotating shaft rotates.

[0014] When the rotating shaft rotates, a voltage can be applied to one or more LED elements from the power transmitter via the contact between the power receiver and the power transmitter. Additionally, when the rotating shaft rotates, a voltage can also be applied to one or more LED elements from the power receiver via electromagnetic induction generated between the power receiver and the power transmitter.

[0015] According to the vehicle lamp with the rotating light source, as described in an exemplary embodiment of the present disclosure and configured as above, it may be possible to improve the thermal resistance performance of the PCB and the LED elements by reducing the number of LED elements. Additionally, since the LED element rotates and emits light, the residual image can be generated along the rotating path of the LED element, and an infinite number of LED elements can emit light simultaneously. Finally, it may be possible to generate surface emission without a boundary line. Furthermore, one or more rotating plates can be arranged in the LED unit, and these rotating plates can be positioned at different distances from the driver, thus implementing a three-dimensional light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features of the present disclosure will now be described in detail with reference to certain exemplary embodiments thereof, which are illustrated in the accompanying drawings, as shown below for illustrative purposes only, and are therefore not limiting to the present invention, wherein: Fig. 1 is a block diagram showing a vehicle lamp with a rotating light source according to a first exemplary embodiment of the present disclosure; Fig. 2 and Fig. Three exemplary diagrams are shown, illustrating the vehicle lamp with the rotating light source according to the first exemplary embodiment of the present disclosure of Fig. 1 show; Fig. 4, Fig. 5, Fig. 6 to Fig. Seven exemplary diagrams are shown, depicting a power transmitter and a power receiver located in the vehicle lamp with the rotating light source according to the first exemplary embodiment of the present disclosure of Fig. 1 are provided; Fig. Figure 8 is an example diagram showing a PCB mounted on the power transmitter and power receiver of Fig. 7 according to the first exemplary embodiment of the present disclosure; Fig. 9 is a block diagram showing a vehicle lamp with a rotating light source according to a second exemplary embodiment of the present disclosure; Fig. 10 and Fig. Eleven exemplary diagrams are shown, illustrating the vehicle lamp with the rotating light source according to the second exemplary embodiment of the present disclosure of Fig. 9 show; Fig. 12, Fig. 13 to Fig. 14 exemplary diagrams are shown, illustrating an LED unit installed in the vehicle lamp with the rotating light source according to the first exemplary embodiment of the present disclosure of Fig. 1 is provided for; and Fig. 15 is a circuit diagram showing a PCB provided on the power transmitter or power receiver according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0017] It is understood that the term “vehicle” or “vehicle-” or any other similar expression, as used herein, includes motor vehicles in general, such as passenger cars including sports utility vehicles (SUVs), buses, trucks, various commercial vehicles, watercraft including a variety of boats and ships, aircraft and the like, and hybrid vehicles, electric vehicles, internal combustion engine vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (for example, fuels derived from resources other than petroleum).

[0018] Although one exemplary embodiment is described as using a plurality of units to carry out the exemplary process, it is understood that the exemplary processes can also be carried out by one or a plurality of modules. Furthermore, it is understood that the term controller / control unit refers to a hardware device containing a memory and a processor.

[0019] The memory is configured to store the modules, and the processor is specifically configured to execute the modules to perform one or more processes described below.

[0020] Furthermore, the control logic of this disclosure can be implemented as non-transient computer-readable media on a computer-readable medium containing executable program instructions that are executed by a processor, controller, or the like. Examples of computer-readable media include, but are not limited to, ROM, RAM, compact disc (CD-)-ROMs, magnetic tapes, floppy disks, flash drives, smart cards, and optical data storage devices. The computer-readable recording medium can also be distributed in network-connected computer systems, such that the computer-readable media are stored and executed in a distributed manner, for example, by a telematics server or a controller area network (CAN).

[0021] The terminology used herein serves only to describe certain embodiments and is not intended to limit disclosure. As used herein, the singular forms "a," "an," and "the" shall also include the plural forms unless the context clearly indicates otherwise. Furthermore, the terms "includes" and / or "comprehensive," when used in this specification, shall specify the presence of the named features, integers, steps, operations, elements, and / or components, but shall not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed elements.

[0022] Unless specifically stated or evident from the context, as used herein, the term "approximately" means within a range of normal tolerance in the field, for example, within two standard deviations of the mean. "Approximately" may be understood as within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the stated value. Unless otherwise stated in the context, all numerical values ​​provided herein are modified by the term "approximately".

[0023] A vehicle lamp with a rotating light source according to an exemplary embodiment of the present disclosure is described below with reference to the accompanying drawings.

[0024] As in Fig. 1, Fig. 2 to Fig. As shown in Figure 3, a vehicle lamp with a rotating light source according to a first exemplary embodiment of the present disclosure can include a signal transmitter 100 configured to receive a signal from one or more sensors (S) mounted inside a vehicle; an LED unit 200 with one or more LED elements 210 configured to emit light to the outside of the vehicle; a controller 300 configured to receive a signal from the signal transmitter 100; a power transmitter 600 and a power receiver 700 configured to receive an applied voltage from the controller 300 to be applied to one or more of the LED elements 210, and to apply the applied voltage to each of the one or more LED elements 210; and a driver 400 configured to rotate the LED unit 200.The controller 300 can be configured to determine an image shape according to the signal and to calculate the applied voltage to one or more of the LED elements 210 according to the calculated image shape.

[0025] For example, the LED unit 200 can be fixed to a rotating shaft 410 that projects from the driver 400 outwards from the vehicle. The power receiver 700 can be mounted on the LED unit 200 so that it is electrically connected to one or more of the LED elements 210. The power transmitter 600, the controller 300, and the signal transmitter 100 can be arranged and fixed on one side of the driver 400.

[0026] The signal transmitter 100 can be configured to send a signal to the controller 300 containing one or more angles of a front vehicle, a front view of the vehicle, and a rear view of the vehicle, measured from the center line of the front and rear of the vehicle. In addition to this signal, the signal transmitter 100 can be configured to receive a lamp switching operating signal, an upward lighting operating signal, and the RPM of the driver 400, and to send the received signals to the controller 300. The signal transmitter 100 can then be configured to send the signal to the controller 300 using pulse width modulation (PWM) or Controller Area Network (CAN) communication.

[0027] As another exemplary embodiment, the signal transmitter 100 can be configured to stop transmitting a signal to the controller 300, select any one of one or more stored operating patterns based on various signals, and send the selected operating pattern to the controller 300 using PWM or CAN communication. Meanwhile, the controller 300 can be configured to select any one of one or more image shapes stored based on various signals received from the signal transmitter 100. When a lamp-on signal is applied, the controller 300 can be configured to adjust the rotation angle of the LED unit 200 so that it is a reference state.

[0028] For example, the controller 300 can be configured to measure a time or RPM that is adjusted to adjust the rotation angle of the LED unit 200, becoming the reference state, and to select the measured time or RPM as a cycle. The controller 300 can be configured to derive the operating pattern of one or more LED elements 210, which can implement the selected image shape for each cycle, and to calculate the magnitude of the applied voltage to the one or more LED elements 210 for each cycle such that the operating pattern can be implemented.

[0029] The vehicle lamp with the rotating light source according to an exemplary embodiment of the present disclosure can be configured to continuously control the on, off, and light output of one or more LED elements 210 such that an operating pattern can be implemented. The operating pattern can include an on position and an off position, based on the rotation angle and the RPM of the rotating plate 220. If the on position is included in the operating pattern, the LED element 210 can be switched on at the on position and can be switched off when it is not in the on position. If the off position is included in the operating pattern (P), the LED element 210 can be switched off at the off position and can be switched on when it is not in the off position.

[0030] The controller 300 can be configured to send the calculated applied voltage for each cycle to the power transmitter. The power transmitter can be configured to apply a voltage to the power receiver, based on the received applied voltage for each cycle, and the power receiver can be configured to apply the voltage to each of the one or more LED elements 210. Accordingly, the image shape selected by the controller 300 can be implemented outside the vehicle by the light shining onto the front of the LED unit 200.

[0031] As in Fig. As shown in 2, the power transmitter and the power receiver can be electrically connected via a slip ring or a gear. As in Fig. 4 and Fig. As shown in section 5, the power transmitter and the power receiver can be electrically connected via a slip ring or the gear.

[0032] As in Fig. 2 and Fig. As shown in Figure 4, the power transmitter 600 can be formed from a brush wire behind the LED unit 200, and the power receiver 700 can be formed from a slip ring behind the LED unit 200 to make contact with the brush wire. The slip ring can be in a disc or tube shape. The brush wire can be parallel or perpendicular to the rotating shaft 410, according to the shape of the slip ring.

[0033] As in Fig. 2 and Fig. As shown in Figure 5, the power transmitter 600 can include a +transmission gear 610 and a -transmission gear 620 located behind or above the LED unit 200, and the power receiver 700 can also include a +receiving gear 710 located behind or next to (for example, close to) the LED unit 200 to engage with the +transmission gear 610 and a -receiving gear 720 located behind or next to (for example, close to) the LED unit 200 to engage with the -transmission gear 620.

[0034] As another example, how in Fig. 6 and Fig. As shown in Figure 7, the power transmitter and the power receiver can be electrically connected by electromagnetic induction. Fig. 3 and Fig. As shown in Figure 6, the power transmitter 600 can be formed from an electromagnet located behind the LED unit 200, and the power receiver 700 can be formed from a coil on the rear surface of the LED unit 200 pointing towards the electromagnet.

[0035] As in Fig. 3 and Fig. As shown in Figure 7, the power transmitter 600 can be formed from an electromagnet located behind the LED unit 200, and the power receiver 700 can be formed from a PCB containing a coil pointing towards the electromagnet. As shown in Fig. As shown in Figure 8, the PCB can contain two or more pattern surfaces B, on which a circuit pattern C is printed, and an insulating filler R arranged between the two or more pattern surfaces B. The circuit patterns C printed on the two or more pattern surfaces B can be connected to form the coil shape.

[0036] The circuit pattern C can include a first side-end region projecting from the lower region of the pattern surface B, a second side-end region projecting from the upper region of the pattern surface B, and a central region connecting the first and second side-end regions and arranged in a ring shape on the pattern surface B. Two or more circuit patterns C can be formed on the pattern surface B at equal intervals.

[0037] Meanwhile, the driver 400 can be configured to receive power from a drive force generator 500. The drive force generator 500 can be configured to select a drive level based on various signals received from the controller 300 or the signal transmitter 100 and apply the selected drive level to the driver 400. The driver 400 can be configured to change the RPM of the LED unit 200 at the rotary shaft 410 according to the drive level. Additionally, the driver 400 can be configured to send the RPM of the rotary shaft 410 to the signal transmitter 100.

[0038] For example, the drive force generator 500 can be configured to receive external power and apply a voltage, adjusted according to the drive level, to the driver 400, which is intended to be a motor.

[0039] In particular, the drive force generator 500 can be configured to adjust a PWM load ratio using a component such as a smart switch to apply a constant voltage to the driver 400. In another example, the drive force generator 500 can include a computing unit configured to select a drive level and an operating unit configured to generate a rotational force according to the drive level, or to receive the rotational force from the motor and modify it to a specific RPM (not shown), for example, a gear assembly connected to the motor. Specifically, the driver 400 can be configured to receive the rotational force as a drive level from the operating unit and rotate at a specific RPM.

[0040] As in Fig. 9, Fig. 10 to Fig. As shown in Figure 11, a vehicle lamp with a rotating light source according to a second exemplary embodiment of the present disclosure can include the signal transmitter 100, which is configured to receive a signal from one or more sensors S mounted inside the vehicle, wherein the LED unit 200 has one or more LED elements 210 configured to emit light outside the vehicle, wherein the controller 300 is configured to receive a signal from the signal transmitter 100, wherein the power transmitter 600 and the power receiver 700 are configured to receive the applied voltage from the controller 300 to be applied to the one or more LED elements 210 and to apply the applied voltage to each of the one or more LED elements 210, a drive guide 800 to which the LED unit 200 is fixed, and the driver 400 is configured to move the drive guide 800.The controller 300 can be configured to determine an image shape based on the signal and to calculate the applied voltage to be applied to one or more LED elements 210 according to the determined image shape.

[0041] As described above, signal transmitter 100 can be configured to send a signal containing the angle of the front of the vehicle, a front image of the vehicle, and a rear image of the vehicle to controller 300. In addition to this signal, signal transmitter 100 can be configured to receive a lamp switching operating signal, a forward light operating signal, and the RPM of driver 400, and to send the received signal to controller 300. Signal transmitter 100 can then be configured to send the signal to controller 300 using PWM or CAN communication.

[0042] As another exemplary embodiment, the signal transmitter 100 can be configured to stop transmitting a signal to the controller 300, select any one of one or more operating patterns (P) stored based on various signals, and send the selected operating pattern to the controller 300 using PWM or CAN communication. Alternatively, the controller 300 can be configured to select any one of one or more image shapes stored based on various signals received from the signal transmitter 100. When the lamp-on signal is applied, the controller 300 can be configured to adjust the rotation angle of the LED unit 200 so that it becomes a reference state.

[0043] For example, the controller 300 can be configured to measure a time or RPM that is adjusted to set the rotation angle of the LED unit 200 to the reference state, and to select the measured time or RPM as a cycle. Additionally, the controller 300 can be configured to determine the operating pattern of the one or more LED elements 210 that can implement the selected image shape for each cycle, and to calculate the magnitude of the applied voltage to the one or more LED elements 210 for each cycle so that the operating pattern can be implemented.

[0044] The controller 300 can be configured to send the calculated applied voltage for each cycle to the power transmitter. The power transmitter can be configured to apply a voltage to the power receiver according to the received applied voltage for each cycle, and the power receiver can be configured to apply the voltage to each of the one or more LED elements 210. Accordingly, the image shape selected by the controller 300 is implemented outside the vehicle by the light emitted towards the front of the LED unit 200.

[0045] Meanwhile, the drive unit 800 can contain a rail, one end of which is fixed to the rotating shaft 410, which projects from the drive unit 400 outwards from the vehicle. One or more LED elements 210 can be fixed to the rail for illumination. The power receiver 700 can be mounted on the rail to be electrically connected to the one or more LED elements 210. Additionally, the power transmitter 600 can be positioned along the trajectory of the rail, which is generated when the rotating shaft 410 rotates. The one or more LED elements 210 can be moved along the rail.

[0046] As in Fig. As shown in Figure 10, the power transmitter 600 and the power receiver 700 can contact each other when the rotating shaft 410 rotates. Since the power transmitter 600 and the power receiver 700 are in contact when the rotating shaft 410 rotates, the applied voltage from the power transmitter 600 can be applied to one or more LED elements 210.

[0047] As in Fig. As shown in Figure 11, the power transmitter 600 and the power receiver 700 can be configured to cause an electromagnetic induction that is generated between the power receiver 700 and the power transmitter 600 when the rotating shaft 410 rotates. When the rotating shaft 410 rotates, the electromagnetic induction can be generated between the power transmitter 600 and the power receiver 700, thus applying the applied voltage from the power receiver 700 to one of the LED elements 210.

[0048] Meanwhile, as in Fig. 12, Fig. 13 to Fig. As shown in Figure 14, the LED unit 200 mounted on the vehicle lamp with the rotating light source, according to an exemplary embodiment of the present disclosure, can be fixed to the rotating shaft 410, which projects from the driver 400 towards the front of the vehicle. The LED unit 200 can include one or more rotating plates 220 that form an angle of approximately 0 degrees to 180 degrees with the rotating shaft 410 extending forward from the vehicle. According to the light path design, the one or more rotating plates 220 can be curved to exhibit a curvature.

[0049] Each of the one or more rotating plates 220 can be arranged at different distances from a rotating unit. Since the one or more rotating plates 220 are spaced apart from each other at different distances from a rotating unit, a three-dimensional light source can be implemented. In particular, since the one or more LED elements 210 rotate and generate light, the surface emission generated at the front of the vehicle can also form a three-dimensional image.

[0050] For example, the one or more rotating plates 220 can be rectangular in shape and can have a first end region bonded to the rotating shaft 410. One or more LED elements 210 can be mounted in a row on each of the one or more rotating plates 220, extending from the rotating shaft 410 to its second end region. The one or more LED elements 210 can be mounted at specific intervals that differ from one another for each rotating plate 220. Since the intervals of the LED elements 210 can differ from one another for each rotating plate 220, the light produced by each of the LED elements 210 has an overlapping area when the one or more rotating plates 221 rotate. Accordingly, the surface emission, which is light in a planar shape without a boundary line, can be emitted in front of the vehicle.

[0051] Meanwhile, according to another example, the arc-shaped wing plate 230 can be arranged on the side of the rotating plate 220 opposite to the direction of rotation of the rotating shaft 410. This improves the heat dissipation and humidity control effects of the rotating plate 220. Additionally, one or more LED elements 210 can be mounted along the curvature of the wing plate 230. Because the LED element 210 is mounted along the curvature of the wing plate 230, the gap between the LED elements 210 can be widened, thus maximizing the heat dissipation area.

[0052] According to the vehicle lamp with the rotating light source as described in an exemplary embodiment of the present disclosure, configured as described above, the thermal resistance performance of the PCB and the LED element 210 can be improved, since the number of LED elements 210 is reduced. Additionally, since the LED element 210 can be configured to emit light, the effects in which a residual image is generated along the rotating path of the LED element 210 and infinite LED elements 210 emit light simultaneously can be achieved. Ultimately, surface emission without a boundary line can be generated.

[0053] Additionally, one or more rotating plates 220 can be provided in the LED unit 200, and these rotating plates 220 can be positioned at different distances from the driver 400, thus implementing a three-dimensional light source. Because the LED unit 200 rotates, the light generated from each LED element 210 can emit a soft linear light source to minimize the appearance of dark areas on the illumination surface in front of the vehicle.

[0054] Furthermore, since a soft surface light source can be generated using the phase difference between the LED elements 210, the appearance of the dark area on the light-illuminating surface in front of the vehicle can be minimized. Because the three-dimensional light source can be generated using the phase difference between the LED elements 210, various optical patterns can be implemented. Additionally, if the color of the light generated by each of the one or more LED elements 210 is adjusted, it may be possible to implement an optical pattern of different colors.

[0055] Additionally, only the red LED element 210 emits light, or the green and red LED element 210 can be configured to emit light simultaneously, thus serving as a brake light, a turn signal, or the like. By varying the color temperature of one or more LED elements 210 mounted on the LED unit 200, it is possible to project light of different color temperatures to the front of the vehicle. Since the large area in front of the vehicle can be illuminated by a small number of LED elements 210, costs and operating voltage are reduced, and the vehicle's fuel efficiency can be improved.

[0056] If the vehicle lamp with the rotating light source can be applied to a headlight according to an exemplary embodiment of the present disclosure, the optical system can be arranged on the front surface of the LED unit 200, and a screen for implementing downward illumination during operation can be arranged between the LED unit 200 and the optical system. Additionally, two or more optical systems can also be arranged on the front surface of the LED unit 200.

[0057] In particular, the light emission of one or more LED elements 210 can also be adjusted to prevent light from reaching a specific optical system.

[0058] Instead of the optical system, a reflector can also be arranged on the front surface of the LED unit 200. Specifically, the screen can be located on one side of the LED unit 200, and the reflector can be positioned above the LED unit 200 and the screen. Additionally, two or more reflectors can be arranged on the front surface of the LED unit 200. The light emission of one or more LED units 200 can be adjusted to prevent light from reaching a specific reflector.

[0059] A functional lamp, to which the vehicle lamp with the rotating light source according to an exemplary embodiment of the present disclosure is applied, can also be embedded in a vehicle front grille. Light of a specific image can be generated through the opening of the grille. When a wireless key is activated, an icon or a letter expressing "Welcome" can be displayed as a three-dimensional optical image. In particular, the LED unit 200 can also be arranged in a cooling fan located within the vehicle front grille. In this case, since it is unnecessary to add a separate device, the LED unit can be applied to an existing vehicle.

[0060] In the preceding description, although it has been described that the LED elements 210 are arranged uniformly, one or more LED elements 210 can also be arranged irregularly in the LED unit 200. In particular, to implement the operating pattern P, the on, off and the amount of light output of each LED element 210 can be adjusted based on the RPM and rotation angle of each LED element 210.

[0061] Additionally, the preceding description has provided an example of the vehicle lamp with the rotating light source being applied to a headlight according to an exemplary embodiment of the present disclosure. However, the vehicle lamp with the rotating light source according to an exemplary embodiment of the present disclosure can also be applied to a recombination lamp (RCL). In particular, if the one or more LED elements 210 are capable of emitting green and red in combination, it is unnecessary to distinguish between a flashing light and a brake light. If the one or more rotating plates 220 are fixed to the rotating shaft 410 such that they have a phase difference, a three-dimensional optical image (a letter or an icon) can be generated in the recombination lamp (RCL).

[0062] Additionally, three rectangular rotating plates 220 can be mounted at the same angle to the rotating shaft 410. One rotating plate 220 can be fitted with a green LED element 210, another rotating plate 220 can be fitted with a blue LED element 210, and yet another rotating plate 220 can be fitted with a red LED element 210. In particular, light of various colors can be projected onto the front surface of the vehicle by combining green, blue, and red light.

[0063] Additionally, one or more PCBs electrically connected to the LED elements 210 can be mounted on their rotating plate 220. When the one or more PCBs are mounted, a first PCB can be connected to the green LED element, a second PCB to the blue LED element, and a third PCB to the red LED element. Accordingly, the LED element 210 can be operated and adjusted for each emission color.

[0064] Furthermore, as in case A of Fig. 15. The PCB provided in the power transmitter 600 or the power receiver 700 can be configured to selectively emit the LED element 210 according to the on / off of the externally applied current. As in case B of Fig.15, the current can be supplied continuously from outside, but only when a signal is received from the controller 300, a signal sensor switch can also be provided on the PCB, which is provided in the power transmitter 600 or the power receiver 700 to apply current to the LED element 210.

Claims

[1] Vehicle lamp with a rotating light source, comprising: a signal transmitter configured to receive a signal from one or more sensors mounted inside a vehicle, a light-emitting diode (LED) unit which is equipped with one or more LED elements configured to emit light outside the vehicle; a controller that is configured to receive the signal from the signal transmitter; a power transmitter and a power receiver configured to receive an applied voltage from the controller, which is to be applied to one or more LED elements, and to apply the applied voltage to each of the one or more LED elements, and a driver configured to rotate the LED unit, wherein the controller is configured to determine an image shape according to the signal, and to calculate the applied voltage to be applied to one or more of the LED elements according to the calculated image shape, wherein the LED unit is fixed to a rotating shaft that protrudes from the driver to the outside of the vehicle, the power receiver is mounted on the LED unit, which is to be electrically connected to one or more of the LED elements, and the power transmitter, the control unit and the signal transmitter are located and fixed on one side of the driver, wherein the signal contains one or more angles of a front vehicle, a front image of the vehicle and a rear image of the vehicle from the center line of the front and rear of the vehicle, the signal transmitter is configured to receive a lamp switching operating signal, an upward light operating signal and a speed (RPM) of the driver, in addition to the signal and the controller is configured to select any one of one or more image shapes that are stored according to different signals received from the signal transmitter, wherein the applied voltage to one or more LED elements from the power transmitter is applied by electromagnetic induction, which is generated between the power transmitter and the power receiver when the LED unit rotates. [2] Vehicle lamp with the rotating light source according to claim 1, wherein the applied voltage to one or more LED elements from the power transmitter is applied by means of a slip ring or a gear arranged between the power transmitter and the power receiver. [3] Vehicle lamp with the rotating light source according to claim 1 or 2, wherein the power transmitter and the power receiver comprise a printed circuit board (PCB), and wherein the PCB comprises: two or more pattern surfaces on which a circuit pattern is printed, and an insulating filler positioned between the two or more pattern surfaces, wherein the circuit surfaces printed on the two or more pattern surfaces are connected to form a coil shape. [4] Vehicle lamp with the rotating light source according to claim 3, wherein the circuit pattern includes: a first side end area that protrudes from the lower area of ​​the pattern surface, a second side end area that protrudes from the upper area of ​​the pattern surface, and a central area that connects the first side end area and the second side end area and is located on the pattern surface as a ring shape. [5] Vehicle lamp with the rotating light source according to any one of claims 1 to 4, further comprising: an optical system that is located on the front surface of the LED unit and serves to induce light generated by one or more LED elements in a specific direction. [6] Vehicle lamp with the rotating light source according to one of claims 1 to 5, further comprising a reflector and a screen arranged on the front surface of the LED unit, and for inducing light generated by the one or more LED elements in a specific direction. [7] Vehicle lamp with a rotating light source, comprising: a signal transmitter configured to receive a signal from one or more sensors provided in a vehicle, a light-emitting diode (LED) unit comprising one or more LED elements configured to emit light outside the vehicle, a controller that is configured to receive the signal from the signal transmitter, a power transmitter and a power receiver configured to receive an applied voltage from the controller to be applied to one or more LED elements and to apply the applied voltage to each of the one or more LED elements, a drive guide to which the LED unit is attached, and a driver that is configured to move the drive guide, wherein the controller is configured to determine an image shape based on the signal and to calculate the applied voltage to be applied to the one or more LED elements according to the calculated image shape, wherein the drive guide includes a rail having an end section fixed to a rotating shaft projecting from the driver to the outside of the vehicle, where one or more LED elements are fixed to the rail to be listed, wherein the power receiver is mounted on the rail to be electrically connected to one or more LED elements, wherein the power transmitter is formed along the trajectory of the rail that is generated when the rotational wave rotates, and wherein, when the rotating shaft rotates, the applied voltage to one or more LED elements from the power receiver is applied by electromagnetic induction generated between the power receiver and the power transmitter. [8] Vehicle lamp with the rotating light source according to claim 7, wherein, when the rotating shaft rotates, the applied voltage is applied to one or more LED elements from the power transmitter through the contact between the power receiver and the power transmitter.

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