External display lighting device of vehicle

Abstract

The present invention relates to an external display lighting device of a vehicle, which displays the current driving condition and driving state of the vehicle to surrounding vehicles or pedestrians, thereby improving the trust in the vehicle and allowing surrounding vehicles or pedestrians to recognize the driving state of the vehicle in advance so that they can quickly respond to subsequent situations, thereby improving stability.

Description

Technical Field

[0001] The present invention relates to an external display lighting device for a vehicle for displaying the driving condition and state of the vehicle to surrounding vehicles or pedestrians. Background Art

[0002] Generally speaking, a vehicle has a lighting device for seeing objects in the traveling direction when traveling at night and for notifying other vehicles or other road users of the traveling status of the own vehicle.

[0003] This type of lighting device not only simply irradiates light, but also improves the driver's convenience by projecting a specific image, and is combined with a variety of functions.

[0004] Recently, autonomous vehicles are being developed and commercialized. In the case of autonomous vehicles, since the driver leaves the seat or performs other actions during autonomous driving, surrounding vehicles or pedestrians may feel uneasy about the autonomous vehicle.

[0005] However, providing information based on the current driving condition and driving state of the vehicle to surrounding vehicles or pedestrians only by using a lighting device for the vehicle is limited, and has the disadvantage that a specific image can only be projected into a specified lighting area.

[0006] The matters described as the background technology described above are only used to enhance the understanding of the background of the present invention and should not be considered as admitting that they belong to the prior art known to those skilled in the art.

[0007] Prior art literature

[0008] Patent Literature

[0009] (Patent Document 1) KR 10-2018-0041103 A (April 23, 2018) Summary of the invention

[0010] Technical problem to be solved by the invention

[0011] The present invention is proposed to solve such technical problems, and its purpose is to provide an external display lighting device for a vehicle, which displays the current driving condition and driving status of the vehicle to surrounding vehicles or pedestrians, thereby improving the trust in the vehicle, allowing surrounding vehicles or pedestrians to recognize the driving status of the vehicle in advance and be able to quickly respond to subsequent situations, thereby improving stability.

[0012] Technical solutions for solving technical problems

[0013] The first embodiment of the present invention involves an external display lighting device for a vehicle, comprising: a light source for irradiating light; a scanning mirror, configured to reflect the light irradiated by the light source so as to change the propagation path of the light, and configured to be rotatable at a predetermined angle so as to scan an image of the reflected light; and a reflector, which is formed so that the light reflected by the scanning mirror is incident on the reflector and the incident light is reflected onto the road surface, and is configured to be rotatable so as to project the incident light onto the road surface around the vehicle.

[0014] The exterior display lighting device of a vehicle is characterized in that a light source, a scanning mirror, and a reflector are arranged at a lower portion of the vehicle.

[0015] The exterior display lighting device of a vehicle is characterized in that the scanning mirror includes a micromirror which vibrates on an X-axis and a Y-axis to change a reflection angle of light irradiated by a light source, thereby generating an image.

[0016] The exterior display lighting device of a vehicle is characterized in that the reflector includes: a reflecting portion formed in a manner having an inclined surface or a curved surface; and a driving portion, on which the reflecting portion is arranged, and the driving portion transmits rotational power to the reflecting portion so that the reflecting portion rotates 360 degrees relative to a vertical axis.

[0017] The external display lighting device of the vehicle is characterized in that the light source is configured to irradiate light in the horizontal direction of the vehicle, the scanning mirror is arranged in the horizontal direction of the light source, and is configured to make the light irradiated by the light source reflected and propagated in the vertical direction of the vehicle, and the reflector is arranged in the vertical direction of the scanning mirror, and is configured to project the light reflected by the scanning mirror onto the road surface.

[0018] The exterior display lighting device of a vehicle is characterized in that a light source, a scanning mirror and a reflector are formed into a component, and the light source and the scanning mirror are rotated 360 degrees together with the reflector.

[0019] The external display lighting device of the vehicle is characterized in that it also includes a rotating frame, which is rotatably arranged on the vehicle, and the light source, the scanning mirror, and the reflector are arranged on the rotating frame. The external display lighting device of the vehicle is configured to arrange the light source at one end of the rotating frame and the scanning mirror at the other end, and the reflector is located on the upper side or the lower side of the light source and the scanning mirror.

[0020] The exterior display lighting device for a vehicle is characterized in that a working part for transmitting a rotational power is connected to an upper end portion or a lower end portion of a rotating frame, so that the rotating frame rotates relative to a vertical axis.

[0021] The vehicle's external display lighting device is characterized in that an extension portion is formed upward or downward at one end of a rotating frame, and a reflector is arranged on the extension portion, thereby being configured so that light irradiated by the light source propagates to the other side and illuminates the scanning mirror, and light reflected by the scanning mirror propagates to one side downward and enters the reflector.

[0022] The vehicle's exterior display lighting device is characterized in that it also includes a housing fixed to the vehicle and formed in a manner of covering the light source, the scanning mirror, and the reflector, and the outer peripheral surface of the housing is formed by a lens to transmit light.

[0023] The external display lighting device of the vehicle is characterized in that it also includes a control unit, which controls the turning on / off of the light source, the movement of the scanning mirror, and the rotational position of the reflector, and receives information based on the driving condition and driving status of the vehicle to control the light source, the scanning mirror, and the reflector, so that the information based on the current driving condition and driving status is projected onto the road surface around the vehicle in the form of an image.

[0024] The second embodiment of the present invention relates to an external display lighting device for a vehicle, comprising: a light source for irradiating light; a scanning mirror configured to reflect the light irradiated by the light source so as to change the propagation path of the light, and configured to be rotatable by a predetermined angle so as to scan an image of the reflected light; and a reflector, which is formed so that the light reflected by the scanning mirror is incident on the reflector and the incident light is reflected onto the road surface, and is formed in a manner having a curved surface so that the incident light is projected onto the road surface around the vehicle.

[0025] The exterior display lighting device of a vehicle is characterized in that a light source, a scanning mirror, and a reflector are arranged at a lower portion of the vehicle.

[0026] The exterior display lighting device of a vehicle is characterized in that the scanning mirror includes a micromirror which vibrates on an X-axis and a Y-axis to change a reflection angle of light irradiated by a light source, thereby generating an image.

[0027] The external display lighting device of a vehicle is characterized in that a light source is configured to irradiate light in a vertical direction toward the vehicle, a reflector is arranged in a vertical direction toward the light source, is formed in a through manner so that the light from the light source can pass through, and is formed to have a curved surface, and a scanning mirror is arranged in a vertical direction toward the reflector to reflect the light from the light source that has passed through the reflector so that it propagates toward the curved surface of the reflector.

[0028] The exterior display lighting device for a vehicle is characterized in that a through hole is formed in the reflector for passing light from a light source, and an inclined surface or a curved surface is formed radially around the through hole.

[0029] The vehicle's external display lighting device is characterized in that it also includes a shell, which is fixed to the vehicle and formed in a manner of covering the light source, the scanning mirror, and the reflector, and the outer peripheral surface of the shell is formed by a lens to transmit light.

[0030] The vehicle exterior display lighting device is characterized in that a fixing frame for arranging a light source is provided inside a shell, a scanning mirror is fixed to the shell apart from the fixing frame, and a scanning mirror is arranged at a direction perpendicular to the light source at the end of the shell.

[0031] The vehicle's external display lighting device is characterized in that it also includes a control unit, which controls the turning on / off of the light source and the action of the scanning mirror, receives information based on the vehicle's driving condition and driving status to control the light source and the scanning mirror, and projects the information based on the current driving condition and driving status onto the road surface around the vehicle.

[0032] Effects of the Invention

[0033] According to the external display lighting device of the vehicle composed of the structure as described above, the current driving condition and driving status of the vehicle can be displayed to surrounding vehicles or pedestrians, thereby increasing the trust in the vehicle and allowing surrounding vehicles or pedestrians to recognize the driving status of the vehicle in advance and respond quickly to subsequent situations, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 to Figure 2 It is a diagram showing an exterior display lighting device for a vehicle according to a first embodiment of the present invention.

[0035] Figures 3 to 6 It is used to illustrate Figure 1 A diagram showing the exterior of the vehicle shown showing the lighting arrangement.

[0036] Figures 7 to 9 FIG. 1 is a diagram showing an exterior indicator lighting device for a vehicle according to a second embodiment of the present invention.

[0037] Description of Reference Numerals

[0038] 10, 10': light source 20, 20': scanning mirror

[0039] 30, 30': reflector 32: reflective part

[0040] 34: Driving unit 40: Rotating frame

[0041] 42: extension part 50: working part

[0042] 60: Shell 60': Shell

[0043] 70, 70': Control department. DETAILED DESCRIPTION

[0044] Hereinafter, an exterior display lighting device for a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[0045] Figure 1 to Figure 2 FIG. 1 is a diagram showing an exterior display lighting device for a vehicle according to a first embodiment of the present invention. Figures 3 to 6 It is used to illustrate Figure 1 A diagram showing the exterior lighting arrangement of the vehicle shown, Figures 7 to 9FIG. 1 is a diagram showing an exterior indicator lighting device for a vehicle according to a second embodiment of the present invention.

[0046] like Figure 1 to Figure 2 As shown, the vehicle external display lighting device (100) of the present invention comprises: a light source (10) for irradiating light; an image scanning mirror (20) configured to reflect the light irradiated by the light source (10) so as to change the propagation path of the light, and configured to be rotatable by a predetermined angle so as to scan the image of the reflected light; and a reflector (30) formed so that the light reflected at the scanning mirror (20) is incident on the reflector so that the incident light is reflected onto the road surface, and configured to be rotatable so as to project the light onto the road surface around the vehicle (V).

[0047] The light source (10) may include an LED, and the scanning mirror (20) is located at a position where the light irradiated by the light source (10) can be incident. Such a scanning mirror (20) may include a MEMS (Micro Electro Mechanical System) scanning mirror, which vibrates on the X-axis and the Y-axis, thereby changing the reflection angle of the light irradiated by the light source (10), thereby generating an image. Such a scanning mirror (20) repeatedly vibrates on the X-axis and the Y-axis, thereby causing the light irradiated by the light source (10) to be displayed as a planar image. That is, the laser beam irradiated by the LED as the light source (10) passes through the scanning mirror (20) whose reflection angle continuously changes, causing the direction of the light to repeatedly change, thereby generating an image produced by the afterimage effect. In this way, the technology of performing image scanning by the light source (10) and the scanning mirror (20) has been disclosed in various forms, so that the specific description is omitted.

[0048] In this way, a reflector (30) is installed on the propagation path of light irradiated by the light source (10) and reflected by the scanning mirror (20), and the reflector (30) is formed so that the light reflected and propagated by the scanning mirror (20) is projected onto the road surface side of the vehicle. In particular, since the reflector (30) is configured to be rotatable 360 ​​degrees, Figure 3 and Figure 6 As shown, incident light is reflected and projected onto the road surface side of the vehicle, and light is selectively projected onto the front, rear, left, and right roads surrounding the vehicle, thereby enabling an image generated by a scanning mirror (20) to be selectively irradiated onto the vehicle periphery.

[0049] That is, according to the rotation position of the reflector (30), the light reflected by the scanning mirror (20) is selectively projected to the periphery of the vehicle, thereby enabling surrounding vehicles or pedestrians to confirm the message of the vehicle.

[0050] To specifically describe the present invention, the light source (10), the scanning mirror (20), and the reflector (30) may be arranged at the lower part of the vehicle.

[0051] like Figure 4 As shown, by arranging the light source (10), the scanning mirror (20) and the reflector (30) at the lower part of the vehicle, it is possible to avoid the phenomenon that the shape of the vehicle blocks the path of the light when irradiating light to the periphery of the vehicle, and by irradiating light to the front, rear, left and right at the lower part of the vehicle, it is possible to minimize the glare felt by surrounding vehicles or pedestrians. In addition, by arranging the light source (10), the scanning mirror (20) and the reflector (30) at the center of the vehicle at the lower part of the vehicle, it is possible to prevent excessive deviation in the amount of light irradiated to the periphery of the vehicle.

[0052] On the other hand, the reflector (30) may include: a reflective portion (32) formed in a manner having an inclined surface or a curved surface; and a driving portion (34) on which the reflective portion (32) is arranged, and which transmits rotational power to the reflective portion (32) so that the reflective portion (32) can rotate 360 ​​degrees relative to a vertical axis.

[0053] like Figure 2 As shown, the reflector (30) may include a reflective portion (32) and a drive portion (34), and the reflective portion (32) may be formed to have an inclined surface or a curved surface so that the light reflected and propagated by the scanning mirror (20) can be propagated to the road surface around the vehicle. Preferably, the reflective portion (32) is formed to have a curved surface that can ensure a large reflection angle of the light, so that the reflected light can be smoothly projected to the outside of the vehicle through the lower part of the vehicle.

[0054] The driving unit (34) may include a motor, and the reflecting unit (32) is arranged on the driving unit, so that the reflecting unit (32) rotates 360 degrees relative to a vertical axis. The vertical axis is the height direction of the vehicle. When the rotational power is transmitted by the driving unit (34), as the reflecting unit (32) rotates relative to the vertical axis, the light reflected and propagated by the scanning mirror (20) selectively propagates to the front, back, left, and right of the vehicle.

[0055] like Figure 1 As shown, in the present invention involved in one embodiment described above, the light source (10) is configured to irradiate light in the horizontal direction of the vehicle, the scanning mirror (20) is arranged in the horizontal direction of the light source (10), and is configured to reflect and propagate the light irradiated by the light source (10) in the vertical direction of the vehicle, and the reflector (30) is arranged in the vertical direction of the scanning mirror (20), and can be configured to project the light reflected by the scanning mirror (20) onto the road surface.

[0056] That is, the light source (10) and the scanning mirror (20) are arranged to be opposite and fixed in the horizontal direction, and the reflector (30) is located in the vertical direction of the scanning mirror (20), so that the light irradiated by the light source (10) propagates in the horizontal direction and enters the scanning mirror (20), and the light reflected by the scanning mirror (20) is converted to the vertical direction and enters the reflector (30), thereby enabling the light reflected by the reflector (30) to be finally projected onto the vehicle road surface. Of course, the positions of the light source (10), the scanning mirror (20), and the reflector (30) can be various positions, but in order to prevent the various components from interfering with the propagation path of the light irradiated by the light source (10), the light source (10) and the scanning mirror (20) are arranged in the horizontal direction, and the reflector (30) is arranged in the vertical direction.

[0057] In addition, by configuring the positions of the light source (10) and the scanning mirror (20) to be fixed and only the reflector (30) to be rotated, it is easy to set up each component, and by only rotating the reflector (30) to change the propagation direction of light, the entire structure can be simplified.

[0058] On the other hand, Figure 5 As shown, the light source (10), the scanning mirror (20) and the reflector (30) can be constructed into a component, so that the light source (10) and the scanning mirror (20) can rotate 360 ​​degrees together with the reflector (30).

[0059] In this way, by configuring the light source (10), the scanning mirror (20), and the reflector (30) to rotate 360 ​​degrees simultaneously, the path of the light irradiated by the light source (10) through the scanning mirror (20) and the reflector (30) can be fixed. That is, as the light source (10), the scanning mirror (20), and the reflector (30) rotate simultaneously as a component, the direction of projection onto the road surface becomes different, and the path of the light from the light source (10) through the scanning mirror (20) to the reflector (30) can be fixed.

[0060] For this reason, Figure 5 As shown, it may also include a rotating frame (40) which is rotatably arranged on the vehicle, and the light source (10), the scanning mirror (20), and the reflector (30) are arranged on the rotating frame. It may be configured such that the light source (10) is arranged at one end of such a rotating frame (40), the scanning mirror (20) is arranged at the other end, and the reflector (30) is located on the upper side or the lower side of the light source (10) and the scanning mirror (20).

[0061] The external display lighting device (100) of the vehicle according to the present invention is arranged at the upper part or the lower part of the vehicle, thereby determining the setting position of the reflector (30). When the external display lighting device (100) of the vehicle is arranged at the lower part of the vehicle, the reflector (30) can be arranged at the lower part of the rotating frame (40).

[0062] In this way, the light source (10) and the scanning mirror (20) are arranged on the rotating frame (40) to be opposite to each other in the horizontal direction, and the reflector (30) is located on the upper side or the lower side of the scanning mirror (20) in the vertical direction, so that the light irradiated by the light source (10) propagates to the other side and enters the scanning mirror (20), and the light reflected by the scanning mirror (20) propagates again to the upper side or the lower side of one side and enters the reflector (30), thereby enabling the light reflected by the reflector (30) to be finally projected onto the vehicle road surface.

[0063] Although Figure 5 The figure shows that the reflector (30) is installed on the lower side of the light source (10) and the scanning mirror (20), but the installation position can be changed in the vertical direction.

[0064] Such a rotating frame (40) can be configured such that a working part (50) for transmitting rotating power is connected to the upper end or the lower end of the rotating frame (40) so that the rotating frame (40) rotates relative to a vertical axis to change the direction of an image of light projected onto a vehicle road surface.

[0065] The working part (50) may include a motor, and by rotating the rotating frame (40) 360 degrees relative to the vertical axis, the light source (10), the scanning mirror (20), and the reflector (30) arranged on the rotating frame (40) rotate together, thereby changing the direction of the light projected onto the road surface.

[0066] On the other hand, Figure 5 As shown, an extension portion (42) is formed upward or downward at one end of a rotating frame (40), and a reflector (30) is provided on the extension portion (42), thereby being configured such that light irradiated by a light source (10) propagates toward the other side and irradiates a scanning mirror (20), and light reflected by the scanning mirror (20) propagates downward toward one side and is incident on the reflector (30).

[0067] That is, the light irradiated by the light source (10) propagates to the other side and enters the scanning mirror (20), and the light reflected by the scanning mirror (20) propagates to one side again and propagates downward to one side to propagate to the reflector (30) arranged on the extension part (42), thereby, the light finally reflected and propagated by the reflector (30) can be irradiated to the outside without being interfered by the scanning mirror (20).

[0068] Thus, by forming an extension portion (42) on the rotating frame (40) and arranging a reflector (30) on the extension portion (42), light finally emitted through the reflector (30) can be smoothly projected to the periphery of the vehicle without being interfered by the light source (10) and the scanning mirror (20).

[0069] On the other hand, Figure 5As shown, it may also include a housing (60) which is fixed to the vehicle and is formed to cover the light source (10), the scanning mirror (20), and the reflector (30), and the outer peripheral surface may be formed by a lens (62) to transmit light.

[0070] In this way, the housing (60) is formed to cover the light source (10), the scanning mirror (20), and the reflector (30), so that the components can be prevented from being contaminated by external foreign matter, and the outer peripheral surface is formed by the lens (62), so that the final emitted light can be smoothly projected to the periphery of the vehicle. Such a housing (60) can be fixed to the vehicle body by bolts.

[0071] On the other hand, it may also include a control unit (70) that controls the on / off of the light source (10), the movement of the scanning mirror (20), and the rotational position of the reflector (30), and receives information based on the driving condition and driving state of the vehicle to control the light source (10), the scanning mirror (20), and the reflector (30), so that the information based on the current driving condition and driving state is projected onto the road surface around the vehicle in the form of an image.

[0072] The control unit (70) receives information from various sensors such as speed sensors, laser sensors, and ultrasonic sensors, and collects the information, and then controls a light source (10), a scanning mirror (20), and a reflector (30) to project messages based on the driving conditions and driving status of the vehicle onto the road surface around the vehicle in the form of an image.

[0073] That is, when driving in the automatic driving mode, the control unit (70) turns on the light source (10), controls the movement of the scanning mirror (20), and controls the reflector (30), thereby projecting a message about the current automatic driving of the vehicle to the periphery of the vehicle. As a result, surrounding vehicles and pedestrians can confirm the message around the vehicle and recognize that the vehicle is driving automatically. In addition, by projecting the driving direction and driving status in various images to the periphery of the vehicle, surrounding vehicles and pedestrians can recognize the direction and status, thereby increasing the trust in the vehicle.

[0074] On the other hand, Figures 7 and 8 As shown, other embodiments of the present invention relate to an external display lighting device for a vehicle, comprising: a light source (10') for irradiating light; a scanning mirror (20') configured to reflect light irradiated by the light source so as to change a propagation path of the light, and configured to rotate at a predetermined angle so as to scan an image of the reflected light; and a reflector (30'), which is formed so that light reflected by the scanning mirror is incident on the reflector, so that the incident light is reflected onto a road surface, and is formed in a manner having a curved surface so that the incident light is projected onto a road surface around the vehicle.

[0075] The light source (10') may include an LED, and the scanning mirror (20') is located at a position where the light irradiated by the light source (10') is incident, and may be composed of a MEMS (Micro Electro Mechanical System) scanning mirror, which vibrates on the X-axis and the Y-axis to change the reflection angle of the light irradiated by the light source (10'), thereby generating an image.

[0076] In this way, light irradiated by the light source (10') and reflected by the scanning mirror (20') propagates toward the reflector (30'), and the reflector (30') is configured to project the light reflected and propagated by the scanning mirror (20') onto the road surface side of the vehicle. In particular, the reflector (30') is formed to have a curved surface in a 360-degree direction, and when the light reflected by the scanning mirror (20') enters the reflector (30'), it is reflected toward the road surface side of the vehicle and projected onto the front, rear, left, and right roads that are the periphery of the vehicle. In addition, the propagation path of the light is converted by the scanning mirror (20'), and depending on the operating state of the scanning mirror (20'), the light enters a specific portion of the curved surface of the reflector (30'), and the light reflected by the curved surface of the reflector (30') can be selectively projected onto the front, rear, left, and right roads that are the periphery of the vehicle.

[0077] That is, according to the operating state of the scanning mirror (20'), the light reflected by the reflector (30') is selectively projected to the periphery of the vehicle, thereby enabling surrounding vehicles or pedestrians to confirm the message of the vehicle.

[0078] On the other hand, the light source (10'), the scanning mirror (20') and the reflector (30') are arranged at the lower part of the vehicle, thereby avoiding the phenomenon that the path of light is blocked by the shape of the vehicle when irradiating light to the periphery of the vehicle. Since the light is irradiated to the front, rear, left and right at the lower part of the vehicle, the glare felt by surrounding vehicles or pedestrians can be minimized.

[0079] On the other hand, Figure 7 As shown, the light source (10') is configured to irradiate light in a vertical direction of the vehicle, the reflector (30') is arranged in a vertical direction of the light source (10'), is formed in a through manner so that the light of the light source (10') can pass through, and is formed in a manner having a curved surface, and the scanning mirror (20') is arranged in a vertical direction of the reflector (30'), and can reflect the light of the light source (10') passing through the reflector (30') and make it propagate toward the curved surface of the reflector (30').

[0080] That is, the light source (10') and the scanning mirror (20') are arranged to be opposite and fixed in a vertical direction, and the reflector (30') is located between the light source (10') and the scanning mirror (20'), so that the light irradiated by the light source (10') passes through the reflector (30') and enters the scanning mirror (20'), and the light reflected by the scanning mirror (20') is converted into a vertical direction again and enters the reflector (30'), so that the light reflected by the reflector (30') can be finally projected onto the vehicle road surface.

[0081] The direction in which light is projected onto the road surface around the vehicle is determined by the action of the scanning mirror (20'), and the reflector (30') is fixed and determines the propagation direction of light based on the curved surface shape.

[0082] On the other hand, Figure 7 and Fig. 9 As shown, the reflector (30') is formed with a through hole (33') through which the light of the light source (10') can pass, and an inclined surface or a curved surface can be formed radially with the through hole (33') as the center. In this way, by forming the through hole (33') at the center of the reflector (30'), the light source (10') and the scanning mirror (20') can be installed in a vertical direction with the through hole (33') as the center. Thus, the light irradiated by the light source (10') propagates toward the scanning mirror (20') through the through hole (33') of the reflector (30'), and the propagation direction of the light is converted according to the operation state of the scanning mirror (20'), so that it propagates to a part of the curved surface of the reflector (30'), and the light reflected by the reflector (30') can be projected onto the road surface around the vehicle. In this way, the light source (10') and the scanning mirror (20') are arranged in a vertical direction on the reflector (30') through the through hole (33'), so that the layout can be reduced.

[0083] On the other hand, Fig. 9 As shown, it may also include a housing (60'), which is fixed to the vehicle and formed in a manner of covering the light source (10'), the scanning mirror (20'), and the reflector (30'), and the outer peripheral surface is formed by a lens (62') to transmit light.

[0084] Thus, since the housing (60') is formed to cover the light source (10'), the scanning mirror (20'), and the reflector (30'), it is prevented that the components are contaminated by external foreign matter, and since the outer peripheral surface is formed by the lens (62'), the final emitted light can be projected to the periphery of the vehicle. Such a housing (60') can be fixed to the vehicle body by bolts.

[0085] Specifically, the housing (60') has a fixing frame (61') on which a light source (10') is disposed, and a scanning mirror (20') is fixed to the housing (60') apart from the fixing frame (61'), and the scanning mirror (20') can be disposed at the end of the housing (60') in a direction perpendicular to the light source (10'). In this way, the light source (10'), the reflector (30'), and the scanning mirror (20') are sequentially disposed inside the housing (60'). That is, the light source (10') is disposed on a fixing frame (61') fixed inside the housing (60'), the scanning mirror (20') is fixed to the outer peripheral surface of the housing (60') in a direction perpendicular to the light source (10'), and the scanning mirror (20') is fixed to the end of the housing (60'), thereby enabling the light source (10'), the scanning mirror (20'), and the reflector (30') to be disposed inside the housing (60').

[0086] Since the scanning mirror (20') can be driven by electricity and connected to the wire, the wire can be arranged on the outer peripheral surface of the shell (60') and on the path where the light is reflected by the reflector (30') and propagates to the tire of the vehicle, thereby preventing the propagation of light from being hindered by the wire.

[0087] On the other hand, the device may further include a control unit (70') that controls the on / off of the light source (10') and the operation of the scanning mirror (20'), receives information based on the driving condition and driving state of the vehicle to control the light source (10') and the scanning mirror (20'), thereby projecting the information based on the current driving condition and driving state onto the road surface around the vehicle in the form of an image.

[0088] The control unit (70') receives and collects information from various sensors such as speed sensors, laser sensors, and ultrasonic sensors, and then controls the light source (10') and the scanning mirror (20') to project messages based on the driving conditions and driving status of the vehicle onto the road surface around the vehicle in the form of images.

[0089] That is, when driving in the automatic driving mode, the control unit (70') turns on the light source (10') and controls the movement of the scanning mirror (20') in the direction of the desired projection around the vehicle, thereby causing the light irradiated by the light source (10') to be reflected by the scanning mirror (20') and then propagated to the reflector (30'), and finally reflected on the reflector (30'), thereby projecting the message that the current vehicle is automatically driving around the vehicle. As a result, surrounding vehicles and pedestrians can confirm the message around the vehicle and recognize that the vehicle is automatically driving. In addition, by projecting the driving direction and driving status around the vehicle in various images, surrounding vehicles and pedestrians can recognize the direction and status, thereby increasing the trust in the vehicle.

[0090] According to the external display lighting device of the vehicle having the structure as described above, the current driving condition and driving status of the vehicle are displayed to surrounding vehicles or pedestrians, thereby increasing the trust in the vehicle and allowing surrounding vehicles or pedestrians to recognize the driving status of the vehicle in advance and respond quickly to subsequent situations, thereby improving stability.

[0091] The present invention has been illustrated and described with respect to specific embodiments, but it will be apparent to those skilled in the art that various improvements and changes can be made to the present invention without departing from the technical concept of the present invention provided by the scope of the claims.

Claims

1. An external display lighting device for a vehicle, characterized in that: include: A source of light that shines light; a scanning mirror configured to reflect light irradiated by the light source so as to change a propagation path of the light, and configured to be able to rotate by a predetermined angle to scan an image of the reflected light; and a reflector formed so that the light reflected by the scanning mirror is incident on the reflector and the incident light is reflected on the road surface, and formed in a manner having a curved surface so that the incident light is projected on the road surface around the vehicle, The light source is configured to irradiate light in a vertical direction toward the vehicle. The reflector is arranged in a vertical direction of the light source, is formed in a through manner so that the light from the light source can pass through, and is formed in a manner having a curved surface. The scanning mirror is arranged in a vertical direction of the reflector, and reflects the light from the light source that has passed through the reflector, so that it propagates toward the curved surface of the reflector.

2. The exterior display lighting device for a vehicle according to claim 1, characterized in that: The light source, the scanning mirror and the reflector are arranged at the lower part of the vehicle.

3. The exterior display lighting device for a vehicle according to claim 1, characterized in that: The scanning mirror includes a micromirror that vibrates in the X-axis and the Y-axis, thereby changing the reflection angle of light irradiated by the light source to generate an image.

4. The exterior display lighting device for a vehicle according to claim 1, characterized in that: The reflector has a through hole through which light from the light source can pass, and has an inclined surface or a curved surface radially formed around the through hole.

5. The exterior display lighting device for a vehicle according to claim 1, characterized in that: Also includes: The housing is fixed to the vehicle and is formed in a manner of covering the light source, the scanning mirror, and the reflector. The outer peripheral surface of the housing is formed by a lens to transmit light.

6. The exterior display lighting device for a vehicle according to claim 5, characterized in that: The interior of the shell is provided with a fixing frame for arranging a light source, the scanning mirror is separated from the fixing frame and fixed on the shell, and the scanning mirror is arranged at the end of the shell in a direction perpendicular to the light source.

7. The vehicle exterior display lighting device according to claim 1, characterized in that: Also includes: The control unit controls the on / off of the light source and the action of the scanning mirror, receives information based on the driving condition and driving state of the vehicle to control the light source and the scanning mirror, so that the information based on the current driving condition and driving state is projected onto the road surface around the vehicle in the form of an image.

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