Vehicle projection system

Abstract

To provide a projection device for a vehicle having a function of preventing the projection device from being brought into contact with an openable / closable door.SOLUTION: A projection device for a vehicle includes a sensor 110 for detecting the insertion of a foot or the like, a door opening / closing mechanism 120 for opening / closing a door of the vehicle, a control unit 130, a projection unit 140 for projecting an image, and a driving unit 150 for driving an actuator of the projection unit 140 by a driving signal DV2. The control unit 130 causes the projection unit 140 to irradiate a detection position H through the driving unit 150 when the detection of a foot or the like is performed by the sensor 110 and causes the projection unit 140 to irradiate a contact boundary line ground position Q of the door through the driving unit 150 when the insertion of the foot or the like has been detected by the sensor 110.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a projection device mounted on a vehicle, and particularly relates to a vehicle projection device having a function of irradiating a contact boundary position when a door is opened and a position detected by a sensor.

Background Art

[0002] Patent Document 1 discloses a technology for illuminating a foot detection position with an LED in a door opening and closing device that opens and closes a rear gate or a sliding door by inserting a foot or the like into the lower part of an automobile, so as to make the detection position of the foot easy to recognize. In addition, the vehicle display device of Patent Document 2 discloses a technology that illuminates the feet outside the door with an LED immediately before opening the door, and illuminates the feet inside the door when the door is opened.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problem to be Solved by the Invention

[0004] For automobile door opening and closing, some vehicle models are equipped with not only manual operation, but also a mechanism that automatically opens and closes the door using a remote controller, a foot sensor or the like. In addition, some vehicle models equipped with a function that allows a user to open a tailgate (the rear door of an automobile) while staying in the driver's seat by operating a button on the driver's seat have appeared on the market.

[0005] Figure 1 illustrates an automatic tailgate opening and closing system using a foot sensor. The rear of the vehicle M is equipped with a sensor 10 for detecting the insertion of a user's foot or other object, and an LED 20 for illuminating the detection position H of the sensor 10 for easy identification. When a foot or other object is inserted into the detection position H illuminated by the LED 20, the sensor 10 detects the insertion of the foot or other object, and the tailgate TG automatically opens.

[0006] When the tailgate TG opens, it's impossible to know whether it will come into contact with an obstacle. Therefore, it's necessary to carefully support the tailgate TG with your hand or other means while opening it to prevent contact with the obstacle, which is a cumbersome process. This is especially true when using automatic opening and closing mechanisms that utilize sensors.

[0007] The present invention aims to solve these conventional problems and to provide a vehicle projection device equipped with a function to prevent contact with opening and closing doors. [Means for solving the problem]

[0008] The vehicle projection device according to the present invention includes detection means for detecting objects around a vehicle, opening and closing means for opening and closing a vehicle door, projection means for projecting an image, and control means, wherein the control means causes the vehicle door to open via the opening and closing means when an object is detected by the detection means, the control means causes the projection means to illuminate the detection position of the detection means when detection is performed by the detection means, and the control means causes the projection means to illuminate the contact boundary position of the vehicle door when an object is detected by the detection means.

[0009] In one embodiment, the projection means includes a movable illumination unit comprising a light source and a lens for focusing light from the light source, and the control means selectively illuminates the detection position or the contact boundary position by moving the illumination unit to a first position or a second position. In one embodiment, the illumination unit is movably mounted on a ring-shaped guide rail, and the control means moves the illumination unit along the guide rail to a first position or a second position. In one embodiment, the projection means includes an auxiliary unit to which the illumination unit can be coupled when the illumination unit is moved from a first position to a second position, and the auxiliary unit includes a lens for correcting the optical properties of the light emitted from the illumination unit. In one embodiment, the projection means includes a first mirror for reflecting light from the illumination unit when it is moved to a first position, and a second mirror for reflecting light from the illumination unit when it is moved to a second position. In one embodiment, the projection means includes an illumination unit comprising a light source and a lens for focusing light from the light source, and a reflective member for reflecting light from the illumination unit, wherein the control means selectively illuminates the detection position or the contact boundary position by changing the reflective member to a first or second angle. In another embodiment, the projection means includes an illumination unit comprising a light source and a lens for focusing light from the light source, and first and second reflective members, wherein the control means moves the first reflective member to a first position to reflect light from the illumination unit with the first reflective member and illuminate the detection position, and moves the first reflective member to a second position to reflect light from the illumination unit with the second reflective member and illuminate the contact boundary position. In another embodiment, the illumination unit includes a mask for generating an image between the light source and the lens. In another embodiment, the door is the tailgate of a vehicle. [Effects of the Invention]

[0010] According to the present invention, since the projection means is configured to selectively illuminate the detection position of the detection means and the vehicle's contact boundary line position, a low-cost vehicle projection device can be provided that does not require two light sources and a large-aperture lens. [Brief explanation of the drawing]

[0011] [Figure 1] This diagram illustrates an example of a conventional automatic door opening and closing system. [Figure 2] This is a block diagram showing the configuration of a vehicle projection device according to an embodiment of the present invention. [Figure 3] Figure 3(A) is a side view illustrating the contact area of ​​the tailgate, and Figure 3(B) is a top view illustrating the contact area of ​​the tailgate. [Figure 4] This figure shows an example of a vehicle projection device that displays the detection position and the door opening / closing boundary. [Figure 5A] This figure shows the configuration of a vehicle projection device according to the first embodiment of the present invention. [Figure 5B] This figure shows the configuration of a vehicle projection device according to the first embodiment of the present invention. [Figure 5C] This figure shows the configuration of a vehicle projection device according to the first embodiment of the present invention. [Figure 6] This figure shows the configuration of a vehicle projection device according to a second embodiment of the present invention. [Figure 7] This figure shows the configuration of a vehicle projection device according to a third embodiment of the present invention. [Figure 8] This figure shows the configuration of a vehicle projection device according to a fourth embodiment of the present invention. [Figure 9A] This figure shows the configuration of a vehicle projection device according to a fourth embodiment of the present invention. [Figure 9B] This figure shows the configuration of a vehicle projection device according to a fourth embodiment of the present invention. [Figure 9C] This figure shows the configuration of a vehicle projection device according to a fourth embodiment of the present invention. [Modes for carrying out the invention]

[0012] Next, embodiments of the present invention will be described. The vehicle projection device according to the present invention has a function of projecting or displaying a specific image (for example, a mark, a pattern, etc.) on the ground or a road surface so that the contact range of the opening / closing door can be visually recognized when opening and closing the door of the vehicle. In one aspect, an image for indicating the contact range of a vehicle tailgate (an opening / closing door provided at the rear of the vehicle) is projected; however, it is also possible to project an image for indicating the contact range of a door for boarding the front seat or a door for boarding the rear seat of the vehicle other than the above. EXAMPLE

[0013] Next, an example of the present invention will be described in detail with reference to the drawings. Figure 2 is a block diagram showing the configuration of a vehicle projection device according to an example of the present invention. The vehicle projection device 100 of the present example is configured to include a sensor 110, a door opening / closing mechanism 120, a control unit 130, a projection unit 140, and a drive unit 150.

[0014] The sensor 110 is, for example, a foot sensor that detects insertion of a user's foot or the like at the rear portion of a vehicle M, and provides the detection result to the control unit 130. The door opening / closing mechanism 120 opens and closes the tailgate according to a drive signal DV1 from the control unit 130. In addition to the drive signal DV1 from the control unit 130, the door opening / closing mechanism 120 can also open and close the tailgate in response to, for example, an operation signal from a remote controller operated by a user, or in response to an operation signal from an opening / closing button provided inside the vehicle.

[0015] The control unit 130 is configured using, for example, a microcontroller, and controls the door opening / closing mechanism 120, the projection unit 140, and the driving unit 150 by executing a program stored in ROM / RAM. For example, when the user is present around the vehicle, or when the user locks or unlocks the door of the vehicle, the control unit 130 causes the projection unit 140 to irradiate the detection position H of the sensor 110. Furthermore, when the sensor 110 detects insertion of a foot or the like, the control unit 130 causes the projection unit 140 to irradiate a position representing a contact boundary line when opening and closing the tailgate, and further causes the door opening / closing mechanism 120 to open the tailgate via the drive signal DV1.

[0016] The projection unit 140 is attached, for example, to a lower portion of a rear part of the vehicle, and projects an image onto the ground or road surface in response to an instruction from the control unit 130. Although the configuration of the projection unit 140 is not particularly limited, it is configured using a light-emitting element such as a light-emitting diode or a semiconductor laser (laser diode), or a projector that projects an image. Although the projected image is not particularly limited, for example, it may include characters such as text, and is not limited to designs or marks. The projection unit 140 also includes an actuator for moving a light source or a mirror, as described later, and has a function of selectively irradiating two positions, namely the detection position H and the contact boundary line position, by moving the light source or the mirror.

[0017] The driving unit 150 outputs a driving signal DV2 to the projection unit 140 in response to an instruction from the control unit 130. The driving signal DV2 drives the actuator of the projection unit 140, moves the light source or the mirror, and changes the irradiation position of the projection unit 140.

[0018] Next, we will explain the contact range of the tailgate. Figure 3(A) is a side view illustrating the contact range when the tailgate TG is opening and closing, and Figure 3(B) is a plan view thereof. The tailgate TG opens and closes by rotating around the upper end E of the rear of the vehicle M, and the contact range S that may come into contact with the tailgate TG during this opening and closing motion is schematically shown by a dashed line. The perpendicular line passing through the point furthest from the vehicle M in the contact range S is defined as the contact boundary line P, and the point where this contact boundary line P intersects the ground or road surface is defined as the contact boundary line ground position Q.

[0019] In the plan view of Figure 3(B), the contact boundary line P is assumed to be uniform behind the vehicle M, and the contact area S is represented as a rectangle. In this case, the contact boundary line P corresponds to the rightmost side of the contact area S. The contact boundary line P and the contact boundary line ground position Q are known from the structure of the vehicle M, and the mounting position and angle of the projection unit 140 are adjusted so that light or an image is projected toward the contact boundary line ground position Q.

[0020] The control unit 130 controls the projection unit 140 so that when the tailgate TG is opened, the image 170 is projected onto the area including the contact boundary ground position Q. Here, as an example, the image 170 of a triangular mark is projected onto the contact boundary ground position Q. The size of the projected image 170 is arbitrary, but for example, the image 170 is projected to a size that matches or includes the contact boundary ground position Q. The projection time by the projection unit 140 is not particularly limited, but for example, it is a certain period of time after the tailgate TG opens, or the period from when the tailgate opens until it closes.

[0021] In this way, when the tailgate TG is opened, image 170 is displayed at the ground position Q of the tailgate TG's contact boundary. By viewing image 170, the user can recognize the contact point of the tailgate TG and avoid contact with obstacles. In particular, at night, the display of a bright image on the ground draws the user's attention to the image, preventing contact with the tailgate.

[0022] Here, the tailgate is used as an example of a vehicle door, but this is just one example; it is also possible to project images onto the ground to indicate the contact boundary of other doors (for example, the rear passenger doors). Furthermore, the tailgate may not only rotate vertically, but also horizontally, or even be a so-called double-hinged tailgate.

[0023] Next, the projection unit 140 of the vehicle projection device of this embodiment will be described. The projection unit 140 of this embodiment has the function of illuminating two positions: the detection position H of the sensor 110 and the contact boundary ground position Q. Figure 4(A) shows a general configuration for illuminating the detection position H and the contact boundary ground position Q. A ring-shaped guide rail 210 is provided on the base 200 at the rear of the vehicle, and a first lens barrel 220 for illuminating the detection position H and a second lens barrel 230 for illuminating the contact boundary ground position Q are fixed to the guide rail 210. The first and second lens barrels 220 and 230, respectively, are generally cylindrical and house LEDs 1 and 2, collimating lenses A1 and A2, masks M1 and M2, and projection lenses B1 and B2 in their internal space. The masks M1 and M2 are optical filters for generating images such as desired designs, patterns, or characters. This configuration, with its first and second microscope tubes 220 and 230, provides two illumination units, resulting in a higher cost for the projection section.

[0024] Figure 4(B) shows another example of the projection unit configuration. A single lens barrel 240 attached to the support member 212 is configured to simultaneously illuminate two positions: the detection position H and the contact boundary ground position Q. Such a configuration is costly because it requires large-aperture lenses A and B for the lens barrel 240 to illuminate both the detection position H and the contact boundary ground position Q.

[0025] Therefore, this embodiment provides an improved projection unit with reduced cost, as shown in Figures 4(A) and 4(B). Figures 5A to 5C show the configuration of the projection unit 140A according to the first embodiment of the present invention.

[0026] The projection unit 140A of this embodiment includes a telescope tube 300 movably mounted on a ring-shaped guide rail 210 and an auxiliary telescope tube 310 fixed to the guide rail 210. The telescope tube 300 constitutes a single illumination unit and houses an LED, a collimating lens A, a mask M, and a projection lens B inside. The auxiliary telescope tube 310 includes an internal space capable of housing the telescope tube 300 and includes a projection lens 330 that corrects the optical properties (e.g., focal length) of the light emitted from the telescope tube 300 when the assembled telescope tube 300 is housed inside.

[0027] The telescope tube 300 is movably mounted on the guide rail 210 by an actuator such as a gear, link, or motor. The actuator moves the telescope tube 300 on the guide rail 210 in response to a drive signal DV2 from the drive unit 150. When the telescope tube 300 is in a first position on the guide rail 210, as shown in Figure 5A, it illuminates the detection position H, and when it is moved to a second position, as shown in Figure 5C, it illuminates the contact boundary ground position Q. The first position is, for example, the position where the optical axis of the telescope tube 300 is vertical. The second position is defined by the position of the auxiliary telescope tube 310, which is fixed to a desired position on the guide rail 210 by an angle adjustment screw 320.

[0028] When the lens barrel 300 is in the first position, the detection position H is illuminated by light from the lens barrel 300. When a user's foot or the like is inserted into the detection position H and this is detected by the sensor 110, the control unit 130 moves the lens barrel 300 to the second position via the drive unit 150. The LED may be turned off during the movement. When the lens barrel 300 moves to the second position, the lens barrel 300 is housed in the auxiliary lens barrel 310, and the optical functions of the lens barrel 300 and the auxiliary lens barrel 310 are combined, illuminating the contact boundary ground position Q. At this time, the projection lens 330 adjusts its optical characteristics, such as focal length, so that the image generated by the mask M is displayed appropriately. As soon as the contact boundary ground position Q is illuminated, the control unit 130 causes the door opening / closing mechanism 120 to open the tailgate TG via the drive signal DV1.

[0029] According to this embodiment, by configuring the lens barrel 300 to be movable, a single illumination unit can selectively illuminate two positions, the detection position H and the contact boundary ground position Q, thereby reducing the cost of the projection unit 140A.

[0030] Next, Figure 6 shows the configuration of the projection unit 140B according to the second embodiment of the present invention. The projection unit 140B of the second embodiment includes a lens barrel 300 fixed to a support member 212 such that the optical axis is approximately horizontal, and a planar mirror 400 positioned in front of the lens barrel 300. The planar mirror 400 is angle-adjustable, and the actuator for driving the planar mirror 400 includes a horizontally extending support member 410 connected to the base 200, a vertically extending support member 430 connected to the support member 410 via an angle adjustment screw 420, a gear 440 attached to the end of the support member 430, a mirror angle control motor 450 that meshes with the gear 440, and a signal cable 460 that transmits a drive signal DV2 from the drive unit 150.

[0031] The mirror angle control motor 450 rotates the gear 440 in response to the drive signal DV2 from the drive unit 150, thereby changing the angle of the plane mirror 400. Figure 6(A) shows the plane mirror 400 at a first angle, where light from the lens barrel 300 is reflected by the plane mirror 400 and illuminates the detection position H. Figure 6(B) shows the plane mirror 400 at a second angle, where light from the lens barrel 300 is reflected by the plane mirror 400 and illuminates the contact boundary ground position Q.

[0032] According to this implementation, by varying the angle of the mirror that reflects light from the lens barrel 300, the detection position H and the contact boundary ground position Q can be selectively illuminated. This structure is cost-effective because it does not require two illumination units or a large-diameter lens.

[0033] Next, Figure 7 shows the configuration of the projection unit 140C according to the third embodiment of the present invention. The projection unit 140C of the third embodiment includes a lens barrel 300 fixed to a support member 212 so that the optical axis is approximately horizontal, and two planar mirrors 500A and 500B positioned in front of the lens barrel 300. An L-shaped support member 510 is attached to the base 200, and the planar mirror 500B is attached to the end of the support member 510 via an angle adjustment screw 520.

[0034] On the other hand, the planar mirror 500A can have its angle varied, and the actuator for driving the planar mirror 500A comprises a support member 510, a vertically extending rack gear 540 connected to the support member 510 via an angle adjustment screw 530, an angle adjustment screw 550 connecting the end of the rack gear 540 to the planar mirror 500A, a mirror angle control motor 560 including a pinion gear that meshes with the rack gear 540, and a signal cable 570 that transmits a drive signal DV2 from the drive unit 150.

[0035] The mirror angle control motor 560 rotates a pinion gear in response to a drive signal DV2 from the drive unit 150, thereby moving the plane mirror 500A vertically. Figure 7(A) shows the plane mirror 500A in the first position, where light from the lens barrel 300 is reflected by the plane mirror 500A and illuminates the detection position H. Figure 7(B) shows the plane mirror 500A moved to the upper second position, where light from the lens barrel 300 is reflected by the plane mirror 500B without interfering with the plane mirror 500A and illuminates the contact boundary ground position Q.

[0036] According to this embodiment, by varying the position of the mirror that reflects light from the lens barrel 300, the detection position H and the contact boundary ground position Q can be selectively illuminated, eliminating the need for two light sources or a large-aperture lens, resulting in a cost-effective structure.

[0037] Next, a projection unit 140D according to a fourth embodiment of the present invention will be described. Figure 8(A) is a schematic side view of the projection unit 140D according to the fourth embodiment, Figure 8(B) is a perspective view showing the internal configuration of the first lens barrel 600, and Figures 9A to 9C are schematic diagrams of the projection unit 140D viewed from the bottom side, showing how the optical path is switched by the horizontal movement of the second lens barrel 610.

[0038] As shown in Figure 8(A), the projection unit 140D comprises a first lens barrel 600 fixed to a support member 212 so that the optical axis is approximately horizontal, a second lens barrel 610 movable within the first lens barrel 600 in a horizontal direction H perpendicular to the optical axis, and two first and second planar mirrors 620A and 620B positioned in front of the first and second lens barrels 600 and 610. A support member 630 extending horizontally is attached to the base 200, a support member 640 extending vertically is attached to the support member 630 via an angle adjustment screw 642, and a first planar mirror 620A is attached to the end of the support member 640 via an angle adjustment screw 644. Furthermore, a support member 650 extending vertically is attached to the support member 630 via an angle adjustment screw 652, and a second planar mirror 620B is attached to the end of the support member 650 via an angle adjustment screw 654.

[0039] As shown in Figure 8(B), the first lens barrel 600 has a roughly rectangular shape and houses the second lens barrel 610, two sets of masks M1 and M2, and two sets of projection lenses B1 and B2 in its internal space. Mask M1 generates images such as patterns and text when illuminating the detection position H, and mask M2 generates images such as patterns and text when illuminating the contact boundary ground position Q.

[0040] The second telescope tube 610 has a rectangular shape that is movable horizontally in the direction H within the first telescope tube 600, and houses the LED and the collimating lens A in its internal space. The actuator for moving the second telescope tube 610 horizontally in the direction H comprises a motor 660 electrically connected to the drive unit 150 via a transmission cable 670, a pinion gear 680 connected to the rotation axis of the motor 660, and a rack gear 690 attached to the second telescope tube 610 and meshing with the pinion gear 680.

[0041] In response to the drive signal DV2, the pinion gear 680 is rotated, causing the second lens barrel 610 to move between a first position where the optical axis aligns with the mask M1 and projection lens B1, and a second position where the optical axis aligns with the mask M2 and projection lens B2. Figure 8(B) shows the second lens barrel 610 in the first position. At this time, the light emitted from the LED of the second lens barrel 610 passes through the collimating lens A, mask M1, and projection lens B1, is reflected by the first plane mirror 620A, and illuminates the detection position H. When the second lens barrel 610 is moved to the second position, the light emitted from the second lens barrel 610 passes through the collimating lens A, mask M2, and projection lens B2, is reflected by the second plane mirror 620B, and illuminates the contact boundary ground position Q.

[0042] Figure 9A shows the second lens barrel 610 in the first position, with light emitted from the LED traveling through the optical path of lens A, mask M1, projection lens B1, and first planar mirror 620A, illuminating the detection position H. When the sensor 110 detects a user's foot or the like entering the detection position H, the control unit 130, for example, temporarily turns off the LED and moves the second lens barrel 610 horizontally to H via the drive unit 150. Figure 9B shows this process. As shown in Figure 9C, the control unit 130 moves the second lens barrel 610 to the second position via the drive unit 150, where it turns on the LED again. As a result, light emitted from the LED travels through the optical path of lens A, mask M2, projection lens B2, and second planar mirror 620B, illuminating the contact boundary ground position Q.

[0043] In this embodiment, by moving the second lens barrel 610 horizontally, the optical path is switched between the path passing through mask M1 and projection lens B1 and the optical path passing through mask M2 and projection lens B2. This allows for variations in the images generated by masks M1 and M2 in each optical path, and also allows for variations in the optical characteristics of projection lenses B1 and B2. Furthermore, since the light source of the second lens barrel 610 is shared between the two optical paths, there is no need for two light sources or large-aperture lenses, thus reducing costs.

[0044] In the above embodiment, the lens barrel is shown to include an LED, a collimating lens A, a mask M, and a projection lens B. However, this is just one example, and the shape, size, and number and type of optical components housed inside the lens barrel can be appropriately changed depending on the intended light source. For example, the lens barrel may include prisms in addition to lenses. Furthermore, the actuator configuration shown in the above embodiment is just one example and is not necessarily limited to such a configuration. In addition, although a planar mirror was used as the optical element in the above embodiment, a concave mirror or a convex mirror may be used instead.

[0045] Although preferred embodiments of the present invention have been described in detail above, the present invention is not limited to any particular embodiment, and various modifications and changes are possible within the scope of the gist of the invention as described in the claims. [Explanation of symbols]

[0046] 100: Vehicle projection device 110: Sensor 120: Door opening and closing mechanism 130: Control Unit 140, 140A, 140B, 140C, 140D: Projection section 150: Drive unit 220, 230, 300, 600, 610: Telescope tube 310: Auxiliary telescope tube 400: Flat mirror H: Detection position Q:Contact boundary ground position

Claims

1. A detection means for detecting objects around the vehicle, A means for opening and closing the doors of a vehicle, A projection means for projecting an image, The system includes control means that controls the opening / closing means and the projection means based on the detection result of the detection means, The projection means includes a movable irradiation unit comprising a light source and a lens for focusing light from the light source, When detection is performed by the detection means, the control means moves the irradiation unit to the first position and causes the projection means to irradiate the detection position of the detection means. The control means moves the irradiation unit to a second position when an object is detected by the detection means at the irradiated detection position, causes the projection means to irradiate the contact boundary line position of the vehicle door at the second position, and opens the vehicle door via the opening / closing means, in a vehicle projection device.

2. The projection device for a vehicle according to claim 1, wherein the irradiation unit is movably mounted on a ring-shaped guide rail, and the control means moves the irradiation unit along the guide rail to a first position or a second position.

3. The projection means includes an auxiliary unit capable of connecting the irradiation unit when the irradiation unit is moved from a first position to a second position, the auxiliary unit including a lens for correcting the optical properties of the light emitted from the irradiation unit, according to claim 1.

4. The projection means includes a first mirror that reflects light from the irradiation unit moved to a first position, and a second mirror that reflects light from the irradiation unit moved to a second position, according to claim 1.

5. A detection means for detecting objects around a vehicle, A means for opening and closing the doors of a vehicle, A projection means for projecting an image, The system includes control means that controls the opening / closing means and the projection means based on the detection result of the detection means, The projection means comprises an irradiation unit equipped with a light source and a lens that focuses light from the light source, It includes a reflective member that reflects light from the irradiation unit, When detection is performed by the detection means, the control means changes the reflective member to a first angle to cause the projection means to illuminate the detection position of the detection means. The control means, when an object is detected by the detection means at the irradiated detection position, changes the reflective member to a second angle, causes the projection means to irradiate the contact boundary position of the vehicle door at the second angle, and causes the vehicle door to open via the opening / closing means, in a vehicle projection device.

6. A detection means for detecting objects around the vehicle, A means for opening and closing the doors of a vehicle, A projection means for projecting an image, The system includes control means that controls the opening / closing means and the projection means based on the detection result of the detection means, The projection means comprises an irradiation unit equipped with a light source and a lens that focuses light from the light source, Including first and second reflective members, The control means is a vehicle projection device that moves the first reflective member to a first position to reflect light from the irradiation unit with the first reflective member and illuminate the detection position, and moves the first reflective member to a second position to reflect light from the irradiation unit with the second reflective member and illuminate the contact boundary line position.

7. The projection device for a vehicle according to claim 1, 5, or 6, wherein the irradiation unit includes a mask for generating an image between the light source and the lens.

8. The vehicle projection device according to claim 1, 5, or 6, wherein the door is the tailgate of the vehicle.

Images