Vehicle lighting equipment

Abstract

To provide a vehicular lighting system which can impart a high-class feeling and a hospitality feeling to occupants in using a vehicle.SOLUTION: If a portable terminal 14 is positioned in a first region 61L, a first light 8L is lit to cause a first display 11L to be displayed on a road surface 10, and if the portable terminal 14 moves from the first region 61L to be positioned in a second region 62L, a second light 9L is lit to cause a second display 13L to be displayed on the road surface while lighting of the first light 8L is maintained, so as to overlap the first display 11L.SELECTED DRAWING: Figure 5B

Description

Technical Field

[0001] The present invention relates to a vehicle lighting device.

Background Art

[0002] In Patent Documents 1 and 2, in a vehicle door opening / closing device that detects a predetermined operation of a passenger and opens / closes a door, in order to assist the execution of the operation by the passenger, characters or symbols are displayed at an operation position (for example, a position where a foot is placed) by irradiating light on the road surface.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Regarding both Patent Documents 1 and 2, what is assumed to be displayed on the ground by irradiating light is only characters, symbols, and simple figures associated therewith. Even if such a display can fulfill the function of assisting the execution of a predetermined operation by a passenger, it does not have the function of evoking a sense of luxury or hospitality in the passenger with respect to using the vehicle.

[0005] An object of the present invention is to provide a vehicle lighting device that can evoke a sense of luxury and hospitality in a passenger with respect to using the vehicle.

Means for Solving the Problems

[0006] One aspect of the present invention includes: a first light capable of displaying a first display on the road surface by irradiating light around the first door of a vehicle; a second light capable of displaying a second display on the road surface by irradiating light around the first door such that at least a portion of the first display overlaps with the first display, wherein the second display differs from the first display in at least one of hue, brightness, saturation, and shape; a position detection unit for detecting the position of a mobile device in the vicinity of the vehicle or inside the vehicle; a first region set around the first door of the vehicle; and a second region set around the first door of the vehicle, closer to the first door than the first region. The vehicle lighting device includes a region determination unit that determines whether the mobile terminal is located in a region based on the detection result of the position detection unit, and a drive control unit that controls the illumination of the first light and the second light based on the determination result of the region determination unit, wherein the drive control unit illuminates the first light to display the first display on the road surface if the mobile terminal is located in the first region, and illuminates the second light while maintaining the illumination of the first light to display the second display on the road surface so as to overlap the first display if the mobile terminal moves from the first region to the second region.

[0007] When a mobile device is positioned in the first area, the first light illuminates and the first display is projected onto the road surface. Subsequently, when the mobile device moves from the first area to the second area, the second light illuminates in addition to the first light, resulting in the second display appearing on the road surface so as to overlap with the already displayed first display. In this way, the second display is projected onto the road surface so as to overlap the first display, and the second display differs from the first display in at least one of the following aspects: hue, brightness, saturation, or shape. This combination of the first and second displays is superior in design compared to displays that are merely letters, symbols, and simple accompanying shapes, and can evoke a sense of luxury and hospitality in passengers when boarding a vehicle. [Effects of the Invention]

[0008] According to the vehicle lighting device of the present invention, it is possible to evoke a sense of luxury and hospitality in passengers when using the vehicle. [Brief explanation of the drawing]

[0009] [Figure 1] A block diagram of a vehicle control device incorporating a vehicle lighting device according to an embodiment of the present invention. [Figure 2] A plan view of a vehicle illustrating multiple areas related to the control of the welcome lights. [Figure 3] A plan view of a vehicle illustrating multiple areas related to door opening and closing control. [Figure 4] A plan view of the vehicle showing both the area related to the control of the welcome lights and the area related to the control of the doors opening and closing. [Figure 5A] A top view of the vehicle with only the right main welcome light illuminated. [Figure 5B] A plan view of the vehicle with both the right main welcome light and the right sub-welcome light illuminated. [Figure 5C] A top view of the vehicle with only the right sub-welcome light illuminated. [Modes for carrying out the invention]

[0010] Next, embodiments of the present invention will be described with reference to the attached drawings.

[0011] In Figures 2 to 5C, the X direction represents the vehicle width direction of vehicle 16, the Y direction represents the vehicle length direction of vehicle 16, and the Z direction represents the vehicle height direction.

[0012] Referring to Figure 1, the vehicle control device 1 incorporating the vehicle lighting device according to an embodiment of the present invention comprises a communication unit 2 and a control unit 3. The vehicle control device 1 is mounted on a vehicle 16 (see Figures 2-5C). The control unit 3 can be constructed from hardware including a CPU (Central Processing Unit), RAM (Random Access Memory), and a storage device such as ROM (Read Only Memory), and software implemented thereon.

[0013] Referring to Figure 2, the vehicle 16 in this embodiment is a so-called one-box type passenger car, and is equipped with left and right front doors 4L, 4R which are of the normal horizontal swing type, and left and right rear doors 5L, 5R which are sliding doors. Referring to Figure 1 as well, the vehicle 16 is equipped with door opening and closing devices 6L, 6R for opening and closing the left and right rear doors 5L, 5R, respectively. The vehicle 16 is also equipped with door lock devices 7L, 7R which can lock the left and right rear doors 5L, 5R when they are fully closed and fully open (in a state where opening and closing is not possible), and can switch from the locked state to an unlocked state in which opening and closing is possible.

[0014] Referring to Figures 1 and 2, the vehicle control device 1 includes left and right main welcome lights (first and third lights) 8L and 8R, and left and right sub-welcome lights (second and fourth lights) 9L and 9R.

[0015] The left main welcome light 8L and the left sub-welcome light 9L project light around the left rear door 4L, allowing the display described later to be projected onto the road surface 10. On the other hand, the right main welcome light 8R and the right sub-welcome light 9R project light around the right rear door 4R, allowing the display described later to be projected onto the road surface.

[0016] Referring to Figure 5A, the left main welcome light 8L is located on the bottom of the vehicle 16, on the left side in the vehicle width direction, that is, on the opposite side from where the left rear door 5L is located, that is, on the right side in the vehicle width direction, at a distance from the left rear door 5L. When the left main welcome light 8L is illuminated, light is projected between the bottom of the vehicle 16 and the road surface, and the main display (first display) 11L is displayed on the road surface 10 around the left rear door 5L. Similarly, the right main welcome light 8R is located on the bottom of the vehicle 16, on the right side in the vehicle width direction, that is, on the opposite side from where the right rear door 5R is located, that is, on the left side in the vehicle width direction, at a distance from the right rear door 5R. When the right main welcome light 8R is illuminated, light is projected between the bottom of the vehicle 16 and the road surface, and the main display (third display) 11R is displayed on the road surface 10 around the right rear door 5R.

[0017] As shown in FIG. 5A, the main displays 11L and 11R in the present embodiment are each a single strip-shaped display that extends slightly outward in the vehicle width direction while spreading slightly from the left and right rear doors 5L and 5R. By displaying such main displays 11L and 11R in red, an impression like that of a so-called red carpet is given to the passengers.

[0018] Referring also to FIG. 5C, the left sub well cam light 9L is disposed at the bottom of the door mirror 12L on the left side in the vehicle width direction of the vehicle 16, that is, on the side where the left rear door 5L is provided. When the left sub well cam light 9L is lit, light is irradiated along the vehicle length direction of the vehicle 16, and the sub display (second display) 13L is displayed on the road surface 10 around the left rear door 5L. Similarly, the right sub well cam light 9R is disposed at the bottom of the door mirror 12R on the right side in the vehicle width direction of the vehicle 16, that is, on the side where the right rear door 5R is provided. When the right sub well cam light 9R is lit, light is irradiated along the vehicle length direction of the vehicle 16, and the sub display (fourth display) 13R is displayed on the road surface 10 around the right rear door 5R.

[0019] As shown in FIG. 5C, the sub displays 13L and 13R in the present embodiment are substantially circular, preferably circular marks painted white, and for example, a logo (not shown) of the automobile manufacturer that manufactures the vehicle 16 is displayed therein. The sub displays 13L and 13R are not particularly limited to a circular shape, and only a logo or an image of another shape may be appropriately selected and displayed.

[0020] The main displays 11L, 11R and sub-displays 13L, 13R are not limited to the configuration of this embodiment, and it is sufficient that the sub-displays 13L, 13R differ from the main displays 11L, 11R in at least one of the following: hue, brightness, saturation, and shape. Furthermore, the mounting positions of the left and right main welcome lights 8L, 8R on the vehicle 16 are not particularly limited, as long as the main displays 11L, 11R can be displayed in the configuration shown in Figures 5A, B or a similar configuration. Similarly, the mounting positions of the left and right sub-welcome lights 9L, 9R on the vehicle 16 are not particularly limited, as long as the sub-displays 13L, 13R can be displayed in the configuration shown in Figures 5B, C or a similar configuration.

[0021] As is clear from Figure 5B, when both the main welcome lights 8L,8R and the sub-welcome lights 9L,9R are illuminated, that is, when both the main displays 11L,11R and the sub-displays 13L,13R are displayed on the road surface 10, the sub-displays 13L,13R overlap with the main displays 11L,11R. More specifically, in this embodiment, the entire sub-displays 13L,13R are included within the range of the main displays 11L,11R (which are strip-shaped as described above). As described above, the display of the sub-displays 13L,13R, which are white-painted circular shapes with the automobile manufacturer's logo, etc., on top of the main displays 11L,11R, which give passengers the impression of a red carpet, can evoke a sense of luxury in passengers who see these displays.

[0022] Referring to Figure 1, the communication unit 2 of the vehicle control device 1 includes a BLE communication unit 21 and a UWB communication unit 22.

[0023] The BLE communication unit 21 communicates with the passenger's portable device 14 using BLE (Bluetooth Low Energy®).

[0024] Referring also to Figure 2, in this embodiment, the UWB communication unit 22 comprises seven communication devices 15A, 15B, 15C, 15D, 15E, 15F, and 15G. Each of these communication devices 15A to 15G performs UWB (Ultra Wide Band) communication, that is, ultra-wide-area wireless communication, with the portable device 14. As shown only in Figure 2, communication devices 15A and 15B are located on both sides in the vehicle width direction at the front of the vehicle 16 (for example, at both ends of the front bumper). Communication devices 15C and 15D are located on both sides in the vehicle width direction at the rear of the vehicle 16 (for example, at both ends of the rear bumper). Communication devices 15E and 15F are located on both sides in the vehicle width direction at the front of the passenger compartment (for example, on the front pillars). Communication device 15G is located in the center of the vehicle width direction at the front of the passenger compartment (for example, on the rear window).

[0025] In this embodiment, the portable device 14 can be exemplified by a smartphone or a personal digital assistant (PDA), but the specific configuration of the device is not particularly limited as long as it is capable of performing BLE communication and UWB communication.

[0026] The control unit 3 comprises a communication control unit 31, a distance detection unit 32, a position detection unit 33, a region determination unit 34, a drive control unit 35, and a storage unit 36. The communication control unit 31, distance detection unit 32, position detection unit 33, region determination unit 34, and drive control unit 35 refer to information stored in the storage unit 36 ​​as needed when performing the processes described below. In particular, the storage unit 36 ​​stores information about the region used by the region determination unit 34 when performing a determination.

[0027] The communication control unit 31 controls the communication between the BLE communication unit 21 and the UWB communication unit 22 of the communication unit 2 and the portable device 14. Specifically, when the signal strength received by the BLE communication unit 21 from the portable device 14 exceeds a predetermined threshold, that is, when the portable device 14 held by the passenger approaches the vehicle 16 within a predetermined distance, the BLE communication unit 21 transmits a trigger signal to the portable device 14. Upon receiving the trigger signal, the portable device 14 periodically transmits request signals to the communication devices 15A to 15G of the UWB communication unit 32. When the communication devices 15A to 15G receive the request signal from the portable device 14, they transmit a response signal to the portable device 14. Upon receiving the response signal from the communication device, the portable device 14 calculates the time Δt1 from when it transmitted the request signal until it received the response signal. The portable device 14 transmits information about time Δt1 to the communication devices 15A to 15G. The communication devices 15A to 15G calculate the time Δt2 from when they received the request signal until they transmitted the response signal. The communication devices 15A to 15G calculate the signal propagation time between the communication devices 15A to 15G and the portable device 14 from the times Δt1 and Δt2. The calculated propagation time is input to the distance detection unit 32.

[0028] The distance detection unit 32 calculates the distance from each communication device 15A to 15G to the portable device 14 by multiplying the signal propagation time between the communication devices 15A to 15G and the portable device 14, which is input from the communication devices 15A to 15G, by the speed of the signal. The calculated distance is input to the position detection unit 33.

[0029] The position detection unit 33 detects the position of the portable device 14 based on the distances from each communication device 15A to 15G to the portable device 14, which are input from the distance detection unit 32. The detected position of the portable device 14 is input to the area determination unit 34.

[0030] The area determination unit 34 determines, based on the input position of the portable device 14, which of the set areas 61L, 61R, 62L, 62R, 71, 72, 73, 74L, 74R, 75 (stored in the memory unit 36 ​​as described above) the portable device is located in.

[0031] The designated regions 61L to 75 include a region (light control region group 51) used to control the illumination and extinguishing of the left and right main welcome lights 8L, 8R and the left and right sub-welcome lights 9L, 9R, and a region (door control region group 52) used to control the door opening devices 6L, 6R and the door lock devices 7L, 7R.

[0032] Referring to Figures 2 and 4, the light control area group 51 includes the left and right main welcome light illumination areas 61L and 61R, and the left and right sub-welcome light illumination areas 62L and 62R. The left main welcome light illumination area 61L and the left sub-welcome light illumination area 62L are set to correspond to the left rear door 5L, while the right main welcome light illumination area 61R and the right sub-welcome light illumination area 62R are set to correspond to the right rear door 5R.

[0033] In this embodiment, the left main welcome light illumination area (first area) 61L is a long, narrow rectangular area in the vehicle width direction, set around the right rear door 5L of the vehicle 16, and in the vehicle length direction, it extends from the front end of the left front door 4L to the rear end of the vehicle 16. In this embodiment, the left sub-welcome light illumination area (second area) 62L is a rectangular area set around the left rear door 5L, closer to the rear door 5L than the left main welcome light illumination area 61L, and in the vehicle length direction, it extends from the front end of the left rear door 5L to the rear end of the left rear door 5L. In terms of length in the vehicle width direction, the left sub-welcome light illumination area 62L is sufficiently shorter than the left main welcome light illumination area 61L. The right main welcome light illumination area (fourth area) 61R and the right sub-welcome light illumination area (fifth area) 62R are arranged symmetrically with respect to the center of the vehicle width direction of the vehicle 16, with respect to the left main welcome light illumination area 61L and the left sub-welcome light illumination area 62L.

[0034] Referring to Figures 3 and 4, the door control area group 52 includes a door lock area 71, a door unlock area 72, an engine start permission area (third area) 73, left and right rear door open areas 74L and 74R, and a dead zone area 75. The left rear door open area 74L is set to correspond to the left rear door 5L, and the right rear door open area 74R is set to correspond to the right rear door 5R.

[0035] In this embodiment, the door lock area 71 is set as an area located a certain distance or more away from the vehicle 16, and the door unlock area 72 is set to surround the vehicle 16 at a position a certain distance closer to the vehicle 16 than the door lock area 71. In addition, the engine start permission area 73 in this embodiment is set inside the passenger compartment of the vehicle 16. In this embodiment, the left and right rear door open areas 74L and 74R are set as the same areas as the left and right sub-welcome light illumination areas 61R and 61L, respectively. A dead zone area 75 is provided between the door lock area 71 and the door unlock area 72 to prevent malfunctions caused by setting the door lock area 71 and the door unlock area 72 adjacent to each other.

[0036] The region determination unit 34 determines which of the regions 61L to 75 the portable device 14 is located in, and this information is input to the drive control unit 35.

[0037] The drive control unit 35 controls the left and right main welcome lights 8L, 8R, left and right sub-welcome lights 9L, 9R, door opening and closing devices 6L, 6R, and door lock devices 7L, 7R based on which of the regions 61L to 75 the portable device 14 is located in, as input from the region determination unit 34, and the movement of the portable device 14 between regions 61L to 75. When UWB communication between the aforementioned communication devices 15A to 15G and the portable device 14 is started, the drive control unit 35 periodically receives input from the region determination unit 34 indicating which of the regions 61L to 75 the portable device 14 is located in.

[0038] The following describes an example of control by the drive control unit 35.

[0039] First, let's describe the case where a passenger approaches the vehicle 16 from the left side, and the portable device 14 approaches the vehicle 16 from the left side in the vehicle width direction. In the initial state, the left and right main welcome lights 8L, 8R and the left and right sub-welcome lights 9L, 9R are all turned off, the door opening and closing devices 6L, 6R are inactive, and the door lock devices 7L, 7R are locked.

[0040] While the portable device 14 is located in the door lock area 71, the left and right main welcome lights 8L, 8R, the left and right sub-welcome lights 9L, 9R, the door opening and closing devices 6L, 6R, and the door lock devices 7L, 7R maintain their initial state.

[0041] When the portable device 14 moves toward the left rear door 5L of the vehicle 16 and enters the door unlock area 72, the door lock devices 7L and 7R switch to the unlocked state (it is also possible to have only the door lock device 7L switch to the unlocked state). Furthermore, as the portable device 14 approaches the rear door 5L, it enters the left main welcome light illumination area 61L, and as shown in Figure 5A, the left main welcome light 8L switches from off to on, and the main display 11L is displayed around the left rear door 5L. By approaching the left rear door 5L even further, the portable device 14 enters the left sub-welcome light illumination area 62L and the left rear door open area 74L (as mentioned above, in this embodiment, the left sub-welcome light illumination area 62L and the left rear door open area 74L are set as the same area).

[0042] When the portable device 14 enters the left sub-welcome light illumination area 62L and the left rear door opening area 74L, the door opening device 6L opens the left rear door 5L. In conjunction with the opening of the left rear door 5L by the door opening device 6L, the left sub-welcome light 9L switches from off to on. Since the main welcome light 8L remains on when the left sub-welcome light 9L is on, as shown in Figure 5B, a sub-display 13L is displayed, which is a white circular object containing, for example, the logo (not shown) of the automobile manufacturer that produces the vehicle 16, superimposed on the main display 11L, which is a red band that extends slightly outward in the vehicle width direction from the left rear door 5L.

[0043] In this way, the road surface is displayed with the sub-display 13L overlapping the main display 11L, and as mentioned above, the sub-display 13L differs from the main display 11L in at least one of the following: hue, brightness, saturation, or shape. This combination of the main display 11L and the sub-display 13L has superior design compared to displays that consist only of letters, symbols, and simple accompanying shapes, and can evoke a sense of luxury and hospitality in passengers when they board the vehicle.

[0044] When the portable device 14 approaches the vehicle 16 from the right side, the right main welcome light 8R, the right sub-welcome light 9R, the door opening / closing device 6R, and the door lock 7R operate in the same manner as when the portable device 14 approaches the vehicle 16 from the left side.

[0045] Next, we will describe the case when a passenger exits the vehicle from the passenger compartment, and therefore the portable device 14 moves out of the passenger compartment to the right side in the vehicle width direction. In the initial state, the left and right main welcome lights 8L, 8R and the left and right sub-welcome lights 9L, 9R are all turned off, the door opening and closing devices 6L, 6R are inactive, and the door lock devices 7L, 7R are locked. Also in this initial state, the portable device 14 is located in the engine start permission area 73.

[0046] When the passenger operates the door lock device 7L from the locked state to the unlocked state, and the door opening / closing device 6L opens the rear door 5L, the passenger, and therefore the portable device 14, can exit the vehicle.

[0047] When the portable device 14 moves from the engine start permission area 73 to the sub-welcome light illumination area 62L, as shown in Figure 5A, the left main welcome light 8L and the left sub-welcome light 9L switch from off to on, and both the main display 11 and the sub-display 13L are displayed.

[0048] When the portable device 14 moves from the left sub-welcome light illumination area 62L to the left main welcome light illumination area 61L, as shown in Figure 5A, only the left main welcome light 9L remains lit, the left sub-welcome light 9L switches from lit to off, and only the main display 11L is displayed. After that, the main welcome light 8L remains lit. Then, when the portable device 14 leaves the left main welcome light illumination area 61L, the left main welcome light 8L switches from lit to off, and all lights are turned off. Alternatively, the left main welcome light 8L may also switch from off to lit after a certain period of time.

[0049] As an alternative to the control when the portable device 14 moves from the passenger compartment to outside the vehicle, that is, the control when disembarking, when the portable device 14 is in the engine start permission area 73, if the door opening device 6L opens the left rear door 5L due to an action taken by the passenger, the left main welcome light 8L and the left sub-welcome light 9L may be switched from off to on in conjunction with this. For example, in conjunction with the opening of the left rear door 5L, both the left main welcome light 8L and the left sub-welcome light 9L switch from off to on (Figure 5B), and after a certain period of time, only the sub-welcome light 9L switches from on to off (Figure 5A), and after another certain period of time, the main welcome light 8L also switches from on to off.

[0050] When the portable device 14 is moved out of the vehicle compartment from the right side of the vehicle 16, the main welcome light 8R and the sub-welcome light 9R will operate in the same way as when the portable device 14 is moved out of the vehicle compartment from the left side.

[0051] Upon successful authentication of the electronic key held by the passenger, the position detection unit 33 begins detecting the passenger's position using multiple ultrasonic sensors installed in the vehicle. Based on the detection results from the position detection unit 33, the area determination unit 34 and the drive control unit 35 may perform control similar to that of the above embodiment.

[0052] In this embodiment, the left and right main welcome lights 8L and 8R are illuminated first, followed by the left and right sub-welcome lights 9L and 9R. However, the left and right sub-welcome lights 9L and 9R may be made with a highly visible hue, brightness, saturation, and shape, and may be illuminated first. Alternatively, the left and right sub-welcome lights 9L and 9R may be kept illuminated while the left and right main welcome lights 8L and 8R are turned off when the passenger disembarks (Figure 5C). [Explanation of Symbols]

[0053] 1. Vehicle control system 2 Communications Department 3. Control Unit 4L, 4R Front Door 5L, 5R Rear Door 6L, 6R Door Opening and Closing Device 7L, 7R Door Lock Device 8L, 8R Main Welcome Lights 9L, 9R Sub-Welcome Lights 10 Road surface 11L, 11R Main display (1st and 3rd display) 12L, 12R Door Mirrors 13L, 13R Sub-display (2nd and 4th displays) 14. Handheld devices 15A,15B,15C,15D,15E,15F,15G Communication device 16 vehicles 21 BLE Communication Department 22 UWB Communication Department 31 Communication Control Unit 32 Distance detection unit 33 Position detection unit 34 Area determination section 35 Drive control unit 36 Memory section 51 Light control area group 52 Lock control area group 61L, 61R Main welcome light illumination area (1st and 4th areas) 62L, 62R Sub-welcome light illumination period (periods 2 and 5) 71 Door lock area 72 Door unlock area 73 Engine start permission area (third area) 74L, 74R Rear door opening area 75 Dead zone

Claims

1. A first light capable of displaying a first mark on the road surface by illuminating the first door of the vehicle, A second display can be displayed on the road surface around the first door by light irradiation such that at least a portion of it overlaps with the first display, and the second display differs from the first display in at least one of its hue, brightness, saturation, and shape, and a second light, A position detection unit that detects the location of a mobile device located around or inside the vehicle, A region determination unit determines, based on the detection result of the position detection unit, whether the mobile terminal is located in a first region set around the first door of the vehicle, and a second region set around the first door of the vehicle, but closer to the first door than the first region. Based on the determination result of the area determination unit, a drive control unit controls the illumination of the first light and the second light. Equipped with, The drive control unit is a vehicle lighting device that, when the mobile terminal is located in the first area, turns on the first light to display the first display on the road surface, and when the mobile terminal moves from the first area to the second area, turns on the second light while maintaining the illumination of the first light to display the second display on the road surface so as to overlap the first display.

2. A first light capable of displaying a first mark on the road surface by illuminating the area around the first door of a vehicle, A second display can be displayed on the road surface around the first door by light irradiation such that at least a portion of it overlaps with the first display, and the second display differs from the first display in at least one of its hue, brightness, saturation, and shape, and a second light, A position detection unit that detects the location of a mobile device located around or inside the vehicle, A region determination unit determines, based on the detection result of the position detection unit, whether the mobile terminal is located in a first region set around the first door of the vehicle, and a second region set around the first door of the vehicle, but closer to the first door than the first region. Based on the determination result of the area determination unit, a drive control unit controls the illumination of the first light and the second light. Equipped with, The drive control unit is configured such that, if the mobile terminal is located in the first area, it lights up the first light to display the first display on the road surface, and if the mobile terminal moves from the first area to the second area, it lights up the second light while maintaining the illumination of the first light to display the second display on the road surface so as to overlap the first display. The first door is provided on one side of the vehicle in the vehicle width direction, A vehicle lighting device wherein the first light is positioned at the bottom of the vehicle at a distance from the first door on the other side in the vehicle width direction, and when illuminated, light is projected so as to pass between the bottom of the vehicle and the road surface to display the first indicator on the road surface.

3. The vehicle lighting device according to claim 2, wherein the second light is provided on the door mirror on one side of the vehicle in the vehicle width direction, and when illuminated, light is projected along the vehicle length direction to display the second display on the road surface.

4. A first light capable of displaying a first mark on the road surface by illuminating the area around the first door of a vehicle, A second display can be displayed on the road surface around the first door by light irradiation such that at least a portion of it overlaps with the first display, and the second display differs from the first display in at least one of its hue, brightness, saturation, and shape, and a second light, A position detection unit that detects the location of a mobile device located around or inside the vehicle, A region determination unit determines, based on the detection result of the position detection unit, whether the mobile terminal is located in a first region set around the first door of the vehicle, and a second region set around the first door of the vehicle, but closer to the first door than the first region. Based on the determination result of the area determination unit, a drive control unit controls the illumination of the first light and the second light. Equipped with, The drive control unit is configured such that, if the mobile terminal is located in the first area, it lights up the first light to display the first display on the road surface, and if the mobile terminal moves from the first area to the second area, it lights up the second light while maintaining the illumination of the first light to display the second display on the road surface so as to overlap the first display. The vehicle is equipped with a door opening and closing device for opening and closing the first door. A vehicle lighting device in which, upon detecting the movement of the mobile terminal from the first area to the second area, the drive control unit opens the first door using the door opening / closing device and turns on the second light in conjunction with the opening of the door.

5. A first light capable of displaying a first mark on the road surface by illuminating the area around the first door of a vehicle, A second display can be displayed on the road surface around the first door by light irradiation such that at least a portion of it overlaps with the first display, and the second display differs from the first display in at least one of its hue, brightness, saturation, and shape, and a second light, A position detection unit that detects the location of a mobile device located around or inside the vehicle, A region determination unit determines, based on the detection result of the position detection unit, whether the mobile terminal is located in a first region set around the first door of the vehicle, and a second region set around the first door of the vehicle, but closer to the first door than the first region. Based on the determination result of the area determination unit, a drive control unit controls the illumination of the first light and the second light. Equipped with, The drive control unit is configured such that, if the mobile terminal is located in the first area, it lights up the first light to display the first display on the road surface, and if the mobile terminal moves from the first area to the second area, it lights up the second light while maintaining the illumination of the first light to display the second display on the road surface so as to overlap the first display. The area determination unit determines whether the mobile terminal is located in a third area set up inside the vehicle's cabin based on the detection result of the position detection unit. A vehicle lighting device in which, when the drive control unit detects that the mobile terminal has moved from the third area to the first area or the second area, it turns on the first light and the second light.

6. A first light capable of displaying a first mark on the road surface by illuminating the area around the first door of a vehicle, A second display can be displayed on the road surface around the first door by light irradiation such that at least a portion of it overlaps with the first display, and the second display differs from the first display in at least one of its hue, brightness, saturation, and shape, and a second light, A position detection unit that detects the location of a mobile device located around or inside the vehicle, A region determination unit determines, based on the detection result of the position detection unit, whether the mobile terminal is located in a first region set around the first door of the vehicle, and a second region set around the first door of the vehicle, but closer to the first door than the first region. Based on the determination result of the area determination unit, a drive control unit controls the illumination of the first light and the second light. Equipped with, The drive control unit is configured such that, if the mobile terminal is located in the first area, it lights up the first light to display the first display on the road surface, and if the mobile terminal moves from the first area to the second area, it lights up the second light while maintaining the illumination of the first light to display the second display on the road surface so as to overlap the first display. The vehicle is equipped with a door opening and closing device for opening and closing the first door. The area determination unit determines whether the mobile terminal is located in a third area set up inside the vehicle's cabin based on the detection result of the position detection unit. The drive control unit is a vehicle lighting device that, when the mobile terminal is located in the third area, activates the first light and the second light in conjunction with the opening of the door opening / closing device.

7. A first light capable of displaying a first mark on the road surface by illuminating the area around the first door of a vehicle, A second display can be displayed on the road surface around the first door by light irradiation such that at least a portion of it overlaps with the first display, and the second display differs from the first display in at least one of its hue, brightness, saturation, and shape, and a second light, A position detection unit that detects the location of a mobile device located around or inside the vehicle, A region determination unit determines, based on the detection result of the position detection unit, whether the mobile terminal is located in a first region set around the first door of the vehicle, and a second region set around the first door of the vehicle, but closer to the first door than the first region. Based on the determination result of the area determination unit, a drive control unit controls the illumination of the first light and the second light. Equipped with, The drive control unit is configured such that, if the mobile terminal is located in the first area, it lights up the first light to display the first display on the road surface, and if the mobile terminal moves from the first area to the second area, it lights up the second light while maintaining the illumination of the first light to display the second display on the road surface so as to overlap the first display. The first door is provided on one side of the vehicle in the vehicle width direction, The aforementioned vehicle is equipped with a second door located on the other side in the vehicle width direction. A third light capable of displaying a third mark on the road surface by illuminating the second door of the vehicle is provided, A fourth display can be displayed on the road surface around the second door by light irradiation such that at least a portion of it overlaps with the third display, and the fourth display further comprises a fourth light, the fourth display having at least one difference from the third display in terms of hue, brightness, saturation, and shape. The first light is positioned at the bottom of the vehicle at a distance from the first door on the other side in the vehicle width direction, and is configured to emit light that passes between the bottom of the vehicle and the road surface when illuminated, thereby displaying the first indicator on the road surface. The second light is provided on the door mirror on one side of the vehicle in the vehicle width direction, and is configured to emit light along the vehicle length direction when illuminated to display the second indicator on the road surface. The third light is positioned at the bottom of the vehicle at a distance from the second door on one side in the vehicle width direction, and when illuminated, the light is projected so as to pass between the bottom of the vehicle and the road surface to display the third indicator on the road surface. The fourth light is provided on the door mirror on the other side in the vehicle width direction of the vehicle, and when illuminated, it is configured to emit light along the vehicle length direction to display the fourth indicator on the road surface. The area determination unit determines, based on the detection result of the position detection unit, whether the mobile terminal is located in a fourth area set around the second door of the vehicle, or in a fifth area set around the second door of the vehicle, but closer to the second door than the fourth area. The drive control unit is a vehicle lighting device that, when the mobile terminal is located in the fourth area, turns on the third light to display the third display on the road surface, and when the mobile terminal moves from the fourth area to the fifth area, turns on the fourth light while maintaining the illumination of the third light to display the fourth display on the road surface so as to overlap the third display.

8. The first indicator is a strip extending in the vehicle width direction from the first door, The vehicle lighting device according to any one of claims 1 to 7, wherein the second display is a character, figure, symbol, or combination thereof displayed within the range of the first display.

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