rear light of a vehicle having movable light segments and motor vehicle comprising at least one said rear light of a vehicle.

Abstract

This vehicle rear light (4) comprises a hollow structure (8) and at least a first and a second luminous segment (12, 14) located at a rear surface (18) of the hollow structure (8) opposite a front surface (20) of the hollow structure (8), the vehicle rear light (4) comprising a motor (10) configured to move the first and second luminous segments (12, 14) inside the hollow structure (8) along the direction from the rear surface (18) of the hollow structure (8) to the front surface (20) of the hollow structure (8). Reference: Figure 1

Description

Title of the invention: Vehicle rear light provided with movable light segments and motor vehicle comprising at least one said vehicle rear light. Technical field

[0001] The present invention relates to the lighting of motor vehicles.

[0002] In particular, the invention relates to a vehicle rear light and a motor vehicle comprising at least one said vehicle rear light. State of the art

[0003] A motor vehicle includes several headlights to ensure good visibility of the surroundings and to be seen by other drivers. A motor vehicle includes, for example, a rear light equipped with LEDs which can display several pieces of information such as stop, rear lantern, reverse gear or indicator.

[0004] The aesthetic effect and safety effect of such a tail light can be improved. Summary of the invention

[0005] Therefore, the present invention aims to improve the aesthetic effect and the safety effect of a motor vehicle lighting.

[0006] An object of the invention is to provide a vehicle tail light comprising a hollow structure and at least a first and a second light segment located at a rear surface of the hollow structure opposite a front surface of the hollow structure, the vehicle tail light comprising a motor configured to move the first and second light segments within the hollow structure along the direction from the rear surface of the hollow structure to the front surface of the hollow structure.

[0007] According to one embodiment, the motor comprises a stepper motor comprising a threaded rod, one of the first and second light segments comprising a complementary thread.

[0008] Advantageously, one of the first and second light segments comprises a rail provided with two stops, the other light segment comprising a connection member connected to the rail, the two stops defining the range of movement of the connection member relative to the rail.

[0009] Optionally, the stops each comprise a magnet.

[0010] According to one embodiment, one of the first and second light segments extends radially around the other light segment, preferably over at least 180 degrees.

[0011] Advantageously, the vehicle rear light comprises an additional light segment- mental which is immobile.

[0012] Another object of the invention is to provide a motor vehicle comprising at least one vehicle rear light as described above.

[0013] According to one embodiment, the motor vehicle comprises a control unit electronically connected to the vehicle tail light motor, the control unit being configured to communicate the speed of the motor vehicle to the vehicle tail light motor, the vehicle tail light motor being configured to move the first and second light segments according to the speed of the motor vehicle.

[0014] Advantageously, the vehicle rear light motor is configured to maintain the first and second light segments in a first extreme position in which the first and second light segments are aligned on the rear surface of the hollow structure when the motor vehicle is stopped for at least a delay time.

[0015] Advantageously, the vehicle rear light motor is configured to maintain the first and second light segments in a second extreme position in which the first and second light segments are on different planes when the motor vehicle is traveling faster than a predefined speed, said different planes being orthogonal to the direction of movement of the first and second light segments.

[0016] According to one embodiment, the vehicle rear light motor is configured to move the first and second light segments proportionally to the speed of the motor vehicle when said speed is between a first speed and a second speed. Brief description of the drawings

[0017] Other advantages and characteristics of the invention will emerge from the detailed description of embodiments of the invention, which are non-limiting examples, illustrated in the appended drawings, in which:

[0018] [Fig.l] is a schematic view of a motor vehicle comprising two vehicle rear lights according to the invention;

[0019] [Fig.2] is a schematic view of a vehicle rear light according to the invention in a first extreme position;

[0020] [Fig.3] is a schematic view of the vehicle rear light of [Fig.2] in a second extreme position;

[0021] [Fig.4] is a schematic 3D view of a vehicle rear light according to the invention, the first light segment, the second light segment and the additional light segment being in a trapezoidal shape and in the first extreme position

[0022] [Fig.5] is a schematic 3D view of the vehicle tail light of [Fig.4], the first light segment, the second light segment and the additional light segment being in the second extreme position;

[0023] [Fig.6] is a schematic 3D view of a vehicle rear light according to the invention, the first light segment, the second light segment and the additional light segment being in a disc shape and in the first extreme position; and

[0024] [Fig.7] is a schematic 3D view of the vehicle tail light of [Fig.6], with the first light segment, the second light segment and the additional light segment being in the second extreme position. Detailed description

[0025] [Fig.l] schematically illustrates a motor vehicle 2 comprising two vehicle rear lights 4 which can display several pieces of information such as stop, rear lantern, reverse or indicator. The motor vehicle 2 also comprises a control unit 6 electronically connected to the vehicle rear light 4.

[0026] As illustrated in [Fig.2], the vehicle rear light 4 comprises a hollow structure 8 and a motor 10, here inside the hollow structure 8. In another embodiment, the motor 10 may be located outside the hollow structure 8.

[0027] The vehicle taillight 4 also comprises a first light segment 12, a second light segment 14 and an additional light segment 16 located at a rear surface 18 of the hollow structure 8 opposite a front surface 20 of the hollow structure 8, the additional light segment 16 being stationary. For example, the first light segment, the second light segment and the additional light segment 12, 14, 16 each comprise a mechanical structure 22 provided with an OLED panel 24 oriented towards the rear surface 18 and electronically connected to the control unit 6, the OLED panel 24 comprising animated lights for displaying several information such as stop, rear lantern, reverse or turn signal.

[0028] The vehicle tail light 4 comprises a lens 26 near the rear surface 18 to protect the first light segment, the second light segment and the additional light segment 12, 14, 16. Preferably, the vehicle tail light 4 comprises a main support 28 adapted to hold the first light segment, the second light segment and the additional light segment 12, 14, 16 on the hollow structure 8. For example, the main support 28 is connected to the mechanical structure 22 of the additional light segment 16. The main support 28 may also hold the motor 10 of the vehicle taillight 4 on the hollow structure 8.

[0029] The motor 10 of the vehicle taillight 4 can move the first and second light segments 12, 14 inside the hollow structure 8 along the direction from the rear surface 18 of the hollow structure 8 to the front surface 20 of the hollow structure 8. This movement improves the appearance of the vehicle taillight 4 and can indicate the movement of the motor vehicle 2. The aesthetic effect of the vehicle taillight 4 can make a driver who sees the vehicle taillight 4 more attentive. For example, the motor 10 can move the first and second light segments 12, 14 when the motor vehicle 2 is moving and immobilize the first and second light segments 12, 14 when the motor vehicle 2 is stopped.

[0030] Optionally, the motor 10 comprises a stepper motor provided with a threaded rod 30, the mechanical structure 22 of the first light segment 12 comprising a complementary thread 32. The stepper motor, in threaded contact with the complementary thread 32, can cooperate with said complementary thread 32 to set the first light segment 12 in motion. The stepper motor ensures precise movement of the first light segment 12. In another embodiment, the second light segment 14 comprises a complementary thread 32. In another embodiment, the first and second light segments 14 each comprise a complementary thread 32, the stepper motor comprising one or two threaded rods 30 or the vehicle rear light 4 comprising a motor 10 for each movable light segment.

[0031] Advantageously, the second light segment 14 comprises a first rail 34 provided with a first front stop 36 and a first rear stop 38, the first light segment 12 comprising a first connection member 40 extending from the mechanical structure 22 of the first light segment 12. The first connection member 40 is connected to the first rail 34. The first front and rear stops 36, 38 define the range of movement of the first connection member 40 relative to the first rail 34.

[0032] In another embodiment, the second light segment 14 comprises the first connection member 40, the first light segment 12 comprising the first rail 34.

[0033] When the first light segment 12 is moved by the motor 10 of the vehicle tail light 4 from the rear surface 18 to the front surface 20, the first connecting member 40 moves inside the first rail 34 from the first rear stop 38 to the first front stop 36. When the first connecting member 40 comes into contact with the first front stop 36, the first connecting member 40 sets the second light segment 14 in motion. Preferably, the additional light segment 16 comprises a second rail 42 provided with a second front stop 44 and a second rear stop 46, the mechanical structure 22 of the second light segment 14 comprising a second connecting member 48 connected to the second rail 42. When the second light segment 14 is moved by the first light segment 12 from the rear surface 18 to the front surface 20, the second connecting member 48 moves inside the second rail 42 from the second rear stop 46 to the second front stop 44 which limits the movement of the second light segment 14 inside the hollow structure 8.

[0034] The first and second light segments 12, 14 are shown in a first extreme position in [Fig. 2], the first connection member 40 being in contact with the first rear stop 38, the second connection member 48 being in contact with the second rear stop 46.

[0035] The first and second light segments 12, 14 are shown in a second extreme position in [Fig. 3], the first connection member 40 being in contact with the first front stop 36, the second connection member 48 being in contact with the second front stop 44.

[0036] In the second extreme position, the first and second light segments 12, 14 are on different planes, said different planes being orthogonal to the direction of movement of the first and second light segments 12, 14.

[0037] Advantageously, the first front and rear stops 36, 38 and the second front and rear stops 44, 46 each comprise a magnet to avoid shaking the first and second light segments 12, 14 during their movements.

[0038] Preferably, the motor 10 of the vehicle tail light 4 is electronically connected to the control unit 6 of the motor vehicle 2. The control unit 6 communicates the speed of the motor vehicle 2 to the motor 10 of the vehicle tail light 4. The motor 10 of the vehicle tail light 4 moves the first and second light segments 12, 14 according to the speed of the motor vehicle 2.

[0039] When the motor vehicle 2 is stopped or when the motor vehicle 2 is stopped for a time delay, for example three seconds, the motor 10 of the vehicle rear light 4 places the first and second light segments 12, 14 in the first extreme position. The first and second light segments 12, 14 are aligned and parallel to the rear surface 18 of the hollow structure 8. The first extreme position alerts a driver who sees the motor vehicle 2 that the motor vehicle 2 is stopped.

[0040] When the motor vehicle 2 is traveling at a speed greater than a predefined speed, for example 30 km / h, the motor 10 of the vehicle rear light 4 places the first and second light segments 12, 14 in the second extreme position. second extreme position alerts a driver who sees motor vehicle 2 that motor vehicle 2 is traveling fast.

[0041] When the motor vehicle 2 is traveling at a speed between a first speed, for example 0 km / h, and a second speed, for example 30 km / h, the motor 10 of the vehicle rear light 4 sets the first and second light segments 12, 14 in motion, said motion being proportional to the speed of the motor vehicle 2. Preferably, said motion is characteristic of the acceleration or deceleration of the motor vehicle 2.

[0042] [Fig.4] schematically represents in 3D view a vehicle rear light 4, the first light segment, the second light segment and the additional light segment 12, 14, 16 being in a first extreme position. The first light segment 12 is in the form of a trapezoid, the second light segment 14 being of a similar trapezoidal shape and extending radially around the first light segment 12, in this case over 180 degrees. The additional light segment 16 is also of a similar trapezoidal shape, the additional light segment 16 extending radially around the second light segment 14.

[0043] [Fig.5] shows the vehicle tail light 4 of [Fig.4], the first segment luminous, the second luminous segment and the additional luminous segment 12, 14, 16 being in a second extreme position.

[0044] [Fig.6] schematically represents in 3D view a vehicle rear light 4 provided with of a first light segment, a second light segment and an additional light segment 12, 14, 16 concentric. The first light segment 12 is in the form of a disc, the second light segment 14 being in the form of a hollow disc and extending radially around the first light segment 12, in this case over 360 degrees. The additional light segment 16 is also in the form of a hollow disc, the additional light segment 16 extending radially around the second light segment 14, in this case over 360 degrees.

[0045] [Fig.7] shows the vehicle rear light 4 of [Fig.6], the first segment luminous, the second luminous segment and the additional luminous segment 12, 14, 16 being in a second extreme position.

[0046] In another embodiment, the vehicle tail light 4 comprises more than two movable light segments. Said light segments may be of different shapes, the movable segments improving the aesthetic effect and the safety effect of the vehicle tail light 4.

[0047] In another embodiment, the light segments may have more complex movements, for example the light segments may move independently and / or rotate around a vertical axis inside the hollow structure 8 to provide information on the direction of the motor vehicle 2, the axis vertical being orthogonal to the road on which the motor vehicle 2 is moving.

Claims

Claims

1. A motor vehicle (2) comprising at least one vehicle tail light (4), the vehicle tail light (4) comprising a hollow structure (8) and at least a first and a second light segment (12, 14) located at a rear surface (18) of the hollow structure (8) opposite a front surface (20) of the hollow structure (8), the vehicle tail light (4) comprising a motor (10) configured to move the first and second light segments (12, 14) within the hollow structure (8) along the direction from the rear surface (18) of the hollow structure (8) to the front surface (20) of the hollow structure (8), the motor vehicle (2) comprising a control unit (6) electronically connected to the motor (10) of the vehicle tail light (4), characterized in that the control unit (6) is configured to communicate the speed of the motor vehicle (2) to the motor (10) of the vehicle tail light (4),the motor (10) of the vehicle rear light (4) being configured to move the first and second light segments (12, 14) according to the speed of the motor vehicle (2).,

2. A motor vehicle (2) according to claim 1, wherein the motor (10) comprises a stepper motor comprising a threaded rod (30), one of the first and second light segments (12, 14) comprising a complementary thread (32).

3. A motor vehicle (2) according to any preceding claim, wherein one of the first and second light segments (12, 14) comprises a rail (32, 42) provided with two stops (36, 38, 44, 46), the other light segment (12, 14) comprising a connecting member (40, 48) connected to the rail (34, 42), the two stops (36, 38, 44, 46) defining the range of movement of the connecting member (40, 48) relative to the rail (34, 42).

4. A motor vehicle (2) according to any preceding claim, wherein one of the first and second light segments (12, 14) extends radially around the other light segment (12, 14), preferably over at least 180 degrees.

5. Motor vehicle (2) according to any one of the preceding claims, comprising an additional light segment (16) which is stationary.

6. A motor vehicle (2) according to any preceding claim, wherein the motor (10) of the vehicle tail light (4) is configured to maintain the first and second light segments (12, 14) in a first extreme position in which the first and second light segments (12, 14) are aligned on the rear surface (18) of the hollow structure (8) when the motor vehicle (2) is stopped for at least a delay time.

7. A motor vehicle (2) according to any preceding claim, wherein the motor (10) of the vehicle rear light (4) is configured to maintain the first and second light segments (12, 14) in a second extreme position in which the first and second light segments (12, 14) are on different planes when the motor vehicle (2) is traveling faster than a predefined speed, said different planes being orthogonal to the direction of movement of the first and second light segments (12, 14).

8. Motor vehicle (2) according to any one of the preceding claims, wherein the motor (10) of the vehicle rear light (4) is configured to move the first and second light segments (12, 14) proportionally to the speed of the motor vehicle (2) when said speed is between a first speed and a second speed.

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