JP2001158283A - Lighting system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system for a vehicle capable of being utilized as a foot lamp at getting on and off, and also used for warning burglar prevention. SOLUTION: When a door switch 133 detects the opening of a door 107, LEDs 3 included in the side lighting units 109A, 109B are lit to illuminate an entrance part 108. When corner sensors 102A-102D detect the approaching of an object O, the LEDs 3 included in the side lighting units 109A, 109B are lit for the warning of crime prevention. As the LEDs 3 are used as an illumination light source, the power consumption can be reduced, the load of a battery is lowered, even when the passengers frequently get on and off by opening the door 107, and further the reliability on the warning of burglar prevention can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for a vehicle used in an automobile, and more particularly, to a lighting device for a vehicle in which current consumption is reduced.

[0002]

Heretofore, in various types of illumination inside and outside an automobile, a bulb (light bulb) type illumination light source has generally been used in order to secure a necessary light quantity. However, such a bulb-type illumination light source consumes a large amount of current. Therefore, especially when incorporated in a lighting unit installed at the door entry / exit section, the foot is illuminated each time the door is opened and the passenger gets on and off, and the battery as a power supply is used. Has a fear of causing a discharge, that is, rising of the battery.

[0003] On the other hand, it has been considered to use such a bulb-type illumination light source for a security alarm of a vehicle. However, if the battery runs out as described above, its function is not exhibited at all. However, it has not yet been commercialized in terms of reliability.

The present invention is intended to solve such a problem. By reducing the current consumption of an illuminating light source, the present invention can be used as a foot light at the time of getting on and off, and can also be used for a security alarm. It is an object to obtain a lighting device.

[0005]

In order to achieve the above object, a lighting unit for a vehicle according to the present invention is provided with opening / closing detecting means for detecting opening / closing of a door, and installed at a boarding / alighting portion of a vehicle body, and as a light source inside. A lighting unit having a light emitting diode, approach detecting means for detecting whether or not the object is approaching the vehicle body, and detecting that the door is opened by the open / close detecting means, or When the detecting means detects the approaching state of the object, the control means turns on the light emitting diode.

When the opening / closing detecting means detects that the door is opened, a light emitting diode built in the lighting unit is turned on to illuminate the boarding / alighting portion of the vehicle body. Further, when the approach detecting means detects that the object approaches the vehicle body within a predetermined distance, a light-emitting diode built in the same lighting unit is turned on for a security warning to prompt attention to the object. . In this way, since the illumination light source is not a bulb but a light emitting diode, current consumption can be reduced. Therefore, even if the door is opened and frequent getting on and off, the burden on the battery is small, and the reliability as a security warning is also low. The performance is also improved. Therefore, it is possible to use this lighting unit not only as foot lighting at the time of getting on and off but also as a security warning.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle lighting device according to the present invention will be described below with reference to the drawings. Referring to FIG. 1, the overall configuration of the apparatus will be described.
Reference numerals A to 102D denote corner sensors such as, for example, ultrasonic sensors arranged at respective corners of the vehicle main body 101, which serve as approach detecting means for detecting the distance relationship between the vehicle main body 101 and the object O facing the vehicle. It is equivalent. Vehicle body 101
Sensors 102A and 102C arranged at the front corners of the vehicle
Is connected to a corner sensor unit 104 provided below an instrument panel (not shown) in the vehicle body 101 by a harness 103 serving as a wiring unit composed of electric wires and connectors. Further, the corner sensors 102B and 102D arranged at the rear corners of the vehicle body 101 are also connected to the corner sensor unit 104 by another harness 105. More specifically, two corner sensor units 104 having the same configuration are provided (see FIG. 9), and one corner sensor unit 104A is provided on the left side (driver's seat side) when viewed from the front of the vehicle body 101. Each sensor signal from the sensors 102A and 102B is monitored, and the other corner sensor unit 104B
The sensor signals of the corner sensors 102C and 102D on the right side (passenger seat side) when viewed from the front of the vehicle body 1 are monitored.

Reference numerals 106A and 106B denote footlights provided at the front feet of the driver's seat and the passenger's seat, respectively. Also,
107 is a door provided on the side of the driver's seat and the rear seat. Located below these doors 107, the side lighting units 109A, 109
B is provided. Although not shown here, doors are also provided in the passenger seat and the rear seat, and a similar side lighting unit is provided in a boarding / alighting portion of the vehicle body 101 located below the door. The footlight 106A and the side lighting units 109A and 109B on the driver's seat side
The harness 105 is connected to the afterglow unit 112.
The footlight 106B on the passenger seat side is also connected to the afterglow unit 112 by a harness 111 together with another side lighting unit not shown here. The afterglow unit 112 has a so-called timer function. When the driver's seat side door 107 is opened, the side lighting units 109A and 109
B and the foot lights 106A and 106B are kept for a certain period of time (for example, 10 seconds) regardless of the opening and closing and locking operation of the door 107 thereafter.
It is lit.

[0009] 115A, 115B is a roof 116 of the vehicle body 101
It is a sun visor lighting unit attached to a sun visor (not shown) which is stored so as to adhere to the sun visor. These sun visor lighting units 115A and 115B are connected to the corner sensor units 104A and 104B by a harness 117, respectively. As is well known, the sun visor can pivot toward the front window 118, and can also pivot from that position toward the side window above the door 107.

Next, the configurations of the side lighting units 109A and 109B and the sun visor lighting units 115A and 115B employed in this embodiment will be described with reference to FIGS. These side lighting units 109A and 109B and sun visor lighting units 115A and 115B
And a wiring board 4 mounted on the base body 2 and mounted with a light emitting diode corresponding to a light emitting element, that is, an LED 3.
And a light-transmitting cover 5 that covers the LED 3 and is attached to the base body 2. However, LE as a light source built in the side lighting units 109A and 109B
D3 has a green emission color, and LED3 as a light source incorporated in the sun visor lighting units 115A and 115B has a red emission color.

The base body 2 is an integrally molded product of a synthetic resin and has a substantially elongated box shape. In other words, the base body 2 includes a bottom surface portion 11 and a pair of long side surface portions 12 and a pair of short side surface portions 13 that rise substantially perpendicularly from the periphery of the bottom surface portion 11.
And an opening 14 in the upper portion on the side opposite to the bottom plate 11.

A notch 16 is formed at the center of the upper edge of each of the long side surfaces 12, and protruding substrate holding portions 17, 18 are provided at both ends with the notch 16 interposed therebetween. They are integrally formed to protrude. In particular, the protrusion-like substrate holding portion 17 on one end side of the base body 2 has the same thickness as the side portions 12 and 13, and can be elastically displaced relatively easily. On the other hand, the projecting substrate holding portion 18 on the other end side of the base body 2
Project slightly inward from the long side surface portion 12. And
Engaging claws 19 and 20 are integrally formed on the inner surfaces of the protruding substrate holding portions 17 and 18 which are opposed to each other at the tip portions. Engaging claw of projecting substrate holding portion 17 on one end side of base body 2
19 has a relatively small amount of protrusion and is substantially triangular. The engaging claw 20 of the projecting substrate holding portion 18 at the other end of the base body 2 has a relatively large amount of protrusion. I have. In addition, a through hole 21 or a notch 22 that includes a projection shape of the engaging claws 19 and 20 in a direction perpendicular to the bottom surface 11 is formed in the bottom surface 11 of the base body 2. Further, cover holding claws 23 each having a substantially triangular shape are formed on the outer surfaces of the protruding substrate holding portions 17 and 18, respectively.

A substantially rectangular bolt hole 26 is formed in the bottom portion 11 of the base body 2 at the end on the side of the protruding substrate holding portion 18.
Are formed. The bolt through hole 26 has a wide portion 26a at the center in the longitudinal direction of the bottom portion 11, and a narrow portion 26b having a smaller width at the opposite side. The notch 22 faces the narrow portion 26b. In addition, both long side parts 12
In between, an upper shielding wall 27 facing the wide portion 26a, and a side shielding wall hanging down from one side edge of the upper shielding wall 27 to the bottom surface portion 11.
28 are integrally formed. The shielding walls 27 and 28 shield the bolt holes 26 from the inside of the base body 2. Further, the bottom portion 1 is continuous with the wide portion 26a.
A harness through hole 29 is formed from 1 through the shielding walls 27 and 28.

At the upper portions of both short side surfaces 13, bolt holes 31 having a substantially semicircular shape are formed. A holding wall 33 having a semicircular notch 32 coaxially with the bolt hole 31 is provided at an end of the base body 2 on the side of the protruding substrate holding section 17. It is formed integrally along the short side surface portion 13. Thereby, between the one short side portion 13 and the holding wall 33 and the other short side portion
Fixing fixture incorporation portions 34 are formed between the protruding substrate holding portion 13 and the projection 13 respectively. Further, fixing projections 35 and 36 are formed on the outer surfaces of both short side surfaces 13, respectively.

Further, a pair of harness holding projections 37 as an electric wire holding portion are provided on the inner surface of the bottom portion 11 of the base body 2.
38 are formed vertically and integrally.

When the base body 2 is molded by means such as injection molding, a mold having a fixed mold and a movable mold that opens and closes in a direction perpendicular to the bottom surface 11 is used. For the engaging claws 19, 20 and the like, which may become undesired, a through hole 21 and a notch 22 are formed at positions corresponding to the bottom surface portion 11 so as not to form an undercut shape. The same applies to the bolt through hole 26, the shielding walls 27 and 28, and the harness through hole 29. That is, if the parting lines of the fixed type and the movable type are appropriately set, the base body 2 has a shape that can be formed only by the fixed type and the movable type without using a slide core or the like.

The wiring board 4 has a substantially rectangular shape, and has such a width that the wiring board 4 just covers the top edges of both long side surfaces 12 of the base body 2. At four corners of the wiring board 4, fixing notches 41 and 42 are formed to be fitted to the protruding board holding parts 17 and 18 of the base body 2, respectively. Since the widths of the projecting substrate holding portions 17 and 18 at both ends of the base body 2 are different from each other, the fixing notches 4 at both ends of the wiring substrate 4 are provided.
1,42 also differ from each other in width. Therefore, the wiring board 4 can be attached to the base body 2 only in a predetermined direction. Further, a notch 43 for passing a harness is formed at the center of both sides of the wiring board 4.

Reference numeral 51 denotes a harness having electric wires 51a and 51b. The electric wires 51a and 51b are connected to the wiring board 4 from above. 52 is a resistor, 53 is a diode for preventing reverse connection, and these wires 51a and 51b, the resistor 52 and the diode 53
Are soldered to the wiring board 4 on the lower side (back side) together with the pair of LEDs 3, whereby the cost can be reduced. In particular, it is possible to solder the electric wires 51a and 51b on the lower side by passing the electric wires 51a and 51b through the notches 43 for passing the harness. In FIG. 6, reference numeral 54 denotes a coupler connected to the tip of the harness 51.

FIG. 8 shows a circuit diagram of the wiring board 4. Electrically, the pair of diodes 3, the resistor 52 and the diode 53 are connected in series between the positive electrode 55 and the negative electrode 56. In this embodiment, two LEDs 3 are mounted on one wiring board 4, but the number of mounted LEDs 3 can be set as appropriate.

The translucent cover 5 is made of a synthetic resin and is integrally molded, and has a translucent color such as milky white. The light-transmitting cover 5 has a substantially box shape with one surface opened, and the opening side of the light-transmitting cover 5 is fitted to the outside of the long side surface portion 12 of the base body 2. It is part 61. In addition, concave portions 62 in which both short side portions 13 of the base body 2 are fitted inside are formed in both end surfaces of the fitting portion 61, respectively. Further, these recesses 62 are formed with substantially semicircular bolt through holes 63, respectively. Also, the fitting part
Engagement holes 64 are formed on both side surfaces of the base 61 so that the cover holding claws 23 of the base body 2 are respectively engaged. Pressing ribs 65 are formed on the side surfaces of the ends in the translucent cover 5, respectively. Further, a lens portion 66 composed of a plurality of R-shaped concave portions is formed at the tip of the light-transmitting cover 5.

The side lighting units 109A and 109B and the sun visor lighting units 115A and 115B
Thus, it can be attached to any attached portion in the vehicle body 101. The bolt 71 can be attached to the base body 2 so as to protrude from the bottom portion 11 to the rear side (downward).
The bolt 71 can be assembled so as to protrude from the short side surface portion 13. These bolts 71 can be attached appropriately after attaching the wiring board 4 to the base body 2. The bolt 71 is a square bolt having a square head 71a.

In order to mount the bolt 71 on the side surface of the base body 2, the head 71 a of the bolt 71 is fixed to the fixture mounting portion 34 between the one short side portion 13 and the holding wall 33 or the other side portion 13. Fixture mounting portion 34 between the projection-shaped substrate holding portion 18 and
Insert straight. The bolt 71 is temporarily held by its head portion 71a being sandwiched between the short side surface portion 13 and the holding wall 33 or the protruding substrate holding portion 18, and the screw portion 71b is bolted along the longitudinal direction of the base body 2. It protrudes outward from the through hole 31.

The translucent cover 5 is attached to the base 2 by fitting the fitting portion 61 to the base 2. At this time, the translucent cover 5 itself is elastically deformed, so that the translucent cover 5 is attached to the cover holding claws 23 of the base body 2.
And the cover holding claws 23 are finally engaged with the engagement holes 64 of the translucent cover 5, respectively. This allows
The translucent cover 5 is fixed to the base body 2, and the bolt through hole 63 of the translucent cover 5 covers the screw portion 71 b of the bolt 71. Also, as shown in FIG. 6, the pressing rib 65 of the translucent cover 5 presses the head 71a of the bolt 71 from above, whereby the bolt 71 is moved to the side lighting units 109A, 109B or the sun visor lighting units 115A, 115B. Is securely fixed.

Referring to FIG. 9, the electrical configuration of this embodiment will be described. In the figure, one of the corner sensor units 104A indicates that the object O has approached the vehicle main body 101 within a predetermined distance from the corner sensor 102A,
When one or both of the 02B sensors detect this corner sensor
Based on the sensor signals from 102A and 102B, a control circuit 122A is built in as control means for driving the LEDs 3 of the sun visor lighting unit 115A on the driver's seat side and the buzzer 121A as sounding means at a predetermined timing. The other corner sensor unit 104B also has a vehicle body 1
In response to 01, that the object O has approached within a predetermined distance,
When one or both of the corner sensors 102C and 102D detect, based on the sensor signals from the corner sensors 102C and 102D, the sun visor lighting unit 115 on the passenger seat side.
A control circuit 12 as control means for driving each LED 3 of B and a buzzer 121B as a sounding means at a predetermined timing.
2B is built in. LED3 and buzzer 121A (or LE
D3 and the buzzer 121B) are connected in parallel, and are driven and controlled simultaneously by the control circuit 122A or the control circuit 122B. Further, each control circuit 122A, 122B
When any of the corner sensors 102A to 102D detects the approaching state of the object O, the voltage level thereof is set to L.
External control terminals 123A and 123 for switching from (low) to H (high)
B. Reference numeral 124 denotes a power supply terminal connected to a battery line + B for supplying a power supply voltage.

On the other hand, an operating unit 131 is constituted by, for example, a transistor, a resistor and a diode, and is an input terminal 132 connected to the external control terminals 123A and 123B.
When the voltage level becomes high or when the door 107 is opened, the door switch 133 for detecting opening and closing of the door 107 is closed, and the voltage level of another input terminal 134 becomes L, that is, the input terminal 134 falls to the ground. Output terminal 135
Outputs an afterglow unit operation signal to the terminal B of the afterglow unit 112 (in this embodiment, the voltage level of the output terminal 135 is switched from H to L). The circuit configuration inside the operation unit 131 is not particularly limited. In short, when the corner sensors 102A to 102D detect the approaching state of the object O or when the door 107 is opened, the afterglow unit 1
Any configuration that activates 12 is acceptable.

The afterglow unit 112 includes a terminal C directly connected to the output terminal 135, a terminal C grounded together with the ground terminal 136 of the operation unit 131, and a battery line + B.
When the voltage level of the terminal A and the terminal E to which the power supply voltage is supplied from the terminal B and the terminal B becomes L, the voltage level becomes L. Then, when the voltage level of the terminal B switches from L to H, A terminal D whose voltage level becomes H after a predetermined time. Although only one side lighting unit 109 is shown in FIG. 9 for convenience, each side lighting unit 109A, 109B is actually connected to a foot light.
106A is connected in parallel between the battery line + B supplying the power supply voltage and the terminal D of the afterglow unit 112. The circuit configuration inside the afterglow unit 112 is not particularly limited, but the point is that the side illumination units 109A and 109B and the footlight 106A are turned on for a certain time in response to an operation signal from the operation unit 131. What is necessary is just to comprise.

Next, the operation of the above construction will be described. In the state where all the doors 107 of the vehicle body 101 are closed and the doors are locked, for example, as shown in FIG. When the vehicle approaches the vehicle main body 101 and the distance to the vehicle main body 101 reaches within a predetermined distance, for example, a corner sensor 102A in front of the driver's seat side of the vehicle main body 101 detects this, and the corner sensor unit is detected. 104
A outputs a sensor signal. Corner sensor unit 104
The control circuit 122A constituting A receives the sensor signal and immediately receives the sun visor lighting unit 115 on the driver's seat side.
In addition to blinking each LED 3 of A, the buzzer 121A is sounded at the same timing as the blinking of this LED 3 to urge the external object O to take precautions for a security alarm. This operation is performed by the corner sensor 1 behind the driver's seat side of the vehicle body 101.
02B detects the approaching state of the object O, but is performed in the same manner.
D detects another corner sensor unit 104
B, sun visor lighting unit 115B on the passenger side
LED3 blinks, and the buzzer 121B sounds at the same timing as the blinking of the LED3. That is, the object O
Sun visor lighting units 115A and 115B on the side approaching
By blinking each of the LEDs 3 and sounding the buzzers 121A and 121B, attention to the object O can be easily attracted.

When the approach state of the object O is detected by the corner sensor 102A or 102B, the corner sensor unit 104A switches the voltage level of the external control terminal 123A from the previous L level to the H level. As a result, the input terminal 132 of the operation unit 131 becomes H level, and the voltage level of the output terminal 135 and thus the terminal B of the afterglow unit 112 is lowered to L, that is, the ground. The afterglow unit 112 sets the voltage level of the terminal D to L,
A, the LED3 of 109B and the footlight 106A are continuously turned on. This operation is performed by another corner sensor 102C or 102D.
When the approach state of the object O is detected, the same operation is performed when the corner sensor unit 104A switches the voltage level of the external control terminal 123A from L level to H level. Thus, when the object O approaches, the LED 3 and the footlight 106 of each of the side lighting units 109A and 109B are also turned on at the same time, so as to urge further attention to the object O outside.

On the other hand, the object O moves away from the vehicle body 101 and faces the object O, for example, a corner sensor 102A.
When this state is detected, the corner sensor unit 104A
The control circuit 122A turns off the LEDs 3 of the sun visor lighting unit 115A and stops the buzzer 121A from sounding. Further, while the object O is in the approaching state, the LED 3 and the footlight 106A of each of the side lighting units 109A and 109B are continuously turned on, but the object O is
When the voltage level of the input terminal 132 of the operating unit 132 changes from H to L, the voltage level of the output terminal 132 and thus the terminal B of the afterglow unit 112 changes from L to H. After a lapse of 10 seconds, the LED 3 of each of the side lighting units 109A and 109B and the footlight 106A are turned off.

In addition to the security warning function, when the door 107 of the vehicle body 101 is opened, a door switch 133 as a door open / close detecting means is closed, and the voltage level of the input terminal 134 of the operation unit 131 is set to L, that is, the ground. fall into. Then, the voltage level of the output terminal 135 of the operation unit 131 and thus the terminal B of the afterglow unit 112 is switched from H to L, and the voltage level of the terminal D of the afterglow unit 112 becomes L. Thereby, the LED 3 of each side lighting unit 109A, 109B
And the foot light 106A are continuously lit to illuminate the foot portion when getting on and off. Thereafter, when the operation unit 131 detects that the door 107 of the vehicle body 101 is closed and the door switch 133 is opened, the voltage level of the output terminal 132 and thus the terminal B of the afterglow unit 112 is switched from L to H, Light unit
After 10 seconds determined at 112, each side lighting unit 1
The LEDs 3 of 09A and 109B and the footlight 106A are turned off.

As described above, according to the present embodiment, the door 10
Door switch 133 as open / close detection means for detecting open / close of 7
And side lighting units 109A and 109B as lighting units, which are installed in the boarding / alighting section 108 of the vehicle body 101 and have the LED 3 as a light source therein.
Corner sensors 102A to 102D as approach detection means for detecting whether or not the object O is approaching the 101;
When the door switch 133 detects that the door 107 is opened, or when the corner sensors 102A to 102D detect the object O
And an afterglow unit 112 as a control unit for turning on the LED 3 when detecting the approaching state.

In this case, when the door switch 133 detects that the door 107 has been opened, the side lighting units 109A, 10A
LED3 built in 9B lights up and gets off the vehicle body 101
Lights 108. Also, the corner sensors 102A-102 indicate that the object O approaches the vehicle body 101 within a predetermined distance.
When D detects, the same side lighting unit 109A, 109B
The LED 3 built in the LED lights up for a security warning to call attention to the object O. As described above, since the illumination light source is the LED 3 instead of the bulb, the current consumption can be reduced. Therefore, even if the door 107 is opened and the user gets on and off the vehicle frequently, the burden on the battery is small, and the reliability as a security alarm is reduced. The performance is also improved. Therefore, the side lighting units 109A and 109B can be used not only as foot lighting at the time of getting on and off, but also as a security warning.

In the present embodiment, when the corner sensors 102A to 102D detect that the object O approaches the vehicle main body 101 within a predetermined distance, the sun visor lighting units 115A and 115B attached to the sun visor are turned on. Each LED3
Flashes. In this case, when the sun visor is rotated toward the front window 118 and the sun visor lighting units 115A and 115B are directed toward the front window 118, when the object O approaches from the front of the vehicle body 101, The blinking state of each LED 3 of the sun visor lighting units 115A and 115B can be immediately visually recognized through the front window 118. When the sun visor is turned to the side window side and used, the sun visor lighting unit 115 passes through the side window particularly to the object O to be intruded from the door 107 on the front seat side.
A, The blinking state of each LED3 of 115B can be immediately visually recognized,
In combination with the lighting of the LEDs 3 of the side lighting units 109A and 109B, it is possible to issue an effective security warning in any case. In the present embodiment, the LEDs 3 of the sun visor lighting units 115A and 115B are turned on and off, but they may be turned on continuously. Also, in the sun visor lighting units 115A and 115B, since the illumination light source is not the bulb but the LED 3, the current consumption can be reduced.

In this embodiment, when the corner sensors 102A to 102D detect the approaching state of the object O, the LED 3 of the side lighting units 109A and 109B is continuously turned on as the control means. Since the afterglow unit 112 that turns on the LEDs 3 of the side lighting units 109A and 109B for a certain time is used even when the object O is separated from the main body 101, the side lighting unit is used for a certain time even after the object O separates from the vehicle main body 101. The LEDs 3 of 109A and 109B are turned on, and the function as a security alarm can be further enhanced.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made. For example, the color of each LED 3 is not limited to those in the embodiment.

[0036]

According to the present invention, there is provided a lighting device for a vehicle, comprising: an opening / closing detecting means for detecting opening / closing of a door; an illuminating unit which is installed in an entrance / exit portion of the vehicle body and has a light emitting diode as a light source inside; Proximity detection means for detecting whether the object is in an approaching state, and when the opening / closing detection means detects that the door is opened, or the approach detection means detects the approaching state of the object. And a control means for turning on the light-emitting diode when the vehicle is turned on. By reducing the current consumption of the illumination light source, the vehicle can be used as step lighting when getting on and off, and can also be used as a security alarm. Lighting device can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an entire vehicle showing an embodiment of the present invention.

FIG. 2 is an exploded right perspective view of the lighting unit.

FIG. 3 is an exploded left perspective view of the same.

FIG. 4 is an exploded bottom perspective view of the same.

FIG. 5 is an exploded bottom perspective view of the same, with the viewing direction changed from that of FIG. 3;

FIG. 6 is a front view of the same assembling state.

FIG. 7 is a sectional view of the same assembling state.

FIG. 8 is a circuit diagram of the wiring board;

FIG. 9 is a circuit configuration diagram of the whole device.

[Explanation of symbols]

 3 LED (Light Emitting Diode) 101 Vehicle main body 102A to 102D Corner sensor (approach detection means) 107 Door 108 Getting on / off section 109A, 109B Side lighting unit (lighting unit) 112 Afterglow unit (control means) 133 Door switch (open / close detection means) O Object

Claims (1)

[Claims] An opening / closing detecting means for detecting opening / closing of a door;
A lighting unit installed at the boarding / alighting section of the vehicle body, having a light emitting diode therein as a light source, an approach detecting means for detecting whether an object is approaching the vehicle body, and an opening / closing detecting means, A lighting device for a vehicle, comprising: control means for turning on the light emitting diode when a door is opened or when the approach detecting means detects an approaching state of the object.