Vehicle lighting fixtures

Abstract

To provide a vehicular lighting fixture having good appearance.SOLUTION: A vehicular lighting fixture includes: three or more lighting parts which are aligned in a predetermined direction; and a control device which sequentially lights the plurality of lighting parts so as to delay a lighting timing from the lighting part on one end side to the lighting part on the other end side in the predetermined direction among the plurality of lighting parts, sets a terminal lighting period in which the terminal lighting part is lighted to be longer than a lighting period until the lighting part on the other end side adjacent to one lighting part is lighted after the one lighting part different from the terminal lighting part on the side closest to the other end side among the plurality of lighting parts has been lighted, and sets an initial lighting period until the lighting part on the other end side adjacent to a starting end lighting part is lighted after the starting end lighting part on the side closest to the one end side of the plurality of lighting parts has been lighted among the plurality of lighting periods to be longer than the other lighting period.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] 2. Description of the Related Art A vehicle lamp having a configuration in which a plurality of lighting units arranged in a predetermined direction are turned on with delays in the timing at which they start lighting (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-145367 A Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, for vehicle lighting devices that perform such sequential lighting, there has been a demand for a configuration that reduces the number of lighting parts from a cost perspective. If the number of lighting parts is reduced, the separation between each lighting part becomes stronger, reducing the sense of continuity, which may affect the appearance.

[0005] The present invention has been made in view of the above, and has an object to provide a vehicle lamp that looks good. [Means for solving the problem]

[0006] A vehicle lamp according to a first aspect of the present invention includes a plurality of lighting units arranged in a predetermined direction, and a control device that sequentially lights up the plurality of lighting units at a first luminance so as to delay the timing of starting lighting from the lighting units at one end side of the predetermined direction to the lighting units at the other end side, and lights up the second lighting unit at a second luminance weaker than the first luminance during a period from when a first lighting unit, which is one of the plurality of lighting units, is turned on at the first luminance to when a second lighting unit adjacent to the first lighting unit on the other end side is turned on at the first luminance.

[0007] The control device may also light up the first lighting unit at the first luminance and the second lighting unit at the second luminance at the same time.

[0008] The control device may light the second lighting unit at the second luminance until a time when the second lighting unit is to be lighted at the first luminance.

[0009] The second luminance may be half the luminance of the first luminance.

[0010] A vehicle lamp according to a second aspect of the present invention includes a plurality of lighting units arranged in a predetermined direction, and a control device that sequentially lights up the plurality of lighting units so as to delay the timing of lighting from the lighting units on one end side of the predetermined direction to the lighting units on the other end side, and that makes the lighting period of the terminal lighting unit longer than the period between lighting a first lighting unit, which is one of the plurality of lighting units different from the terminal lighting unit on the furthest other end side, and lighting a second lighting unit adjacent to the first lighting unit on the other end side.

[0011] In addition, the control device may make the lighting period of the terminal lighting unit shorter than the sequential period from the timing at which the beginning lighting unit, which is the lighting unit closest to the one end, starts to light up to the timing at which the terminal lighting unit starts to light up.

[0012] The control device may also set the sequential period to 0.12 seconds.

[0013] In addition, three or more lighting units may be arranged, and the control device may make an initial lighting period, from when the start lighting unit among the plurality of lighting units that is closest to the one end side to when the control device turns on the lighting unit adjacent to the start lighting unit on the other end side, longer than the other periods.

[0014] Also, three of the lighting sections may be arranged. Effect of the Invention

[0015] According to the present invention, a vehicle lamp with good appearance can be provided. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a side view showing an example of a vehicle according to the first embodiment. [Diagram 2] FIG. 2 is a diagram illustrating an example of a vehicle lamp according to the first embodiment. [Diagram 3] FIG. 3 is a diagram illustrating an example of lighting control of the light irradiation unit according to the first embodiment. [Figure 4] FIG. 4 is a timing chart relating to the control of each lighting unit of the light irradiation unit. [Diagram 5] FIG. 5 is a diagram illustrating an example of lighting control of a light irradiation unit according to the second embodiment. [Figure 6] FIG. 6 is a timing chart relating to control of each lighting unit of the light irradiation unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of a vehicle lamp according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that are replaceable and easy for a person skilled in the art, or those that are substantially the same.

[0018] [First embodiment] FIG. 1 is a side view showing an example of a vehicle 1 according to this embodiment. As shown in FIG. 1, the vehicle 1 includes a vehicle body 2, a running device 3, and a vehicle lamp 100. The vehicle body 2 has a driver's cab in which a driver sits. The vehicle body 2 is supported by the running device 3. The running device 3 includes wheels 5 on which tires 4 are mounted, a steering device for changing the traveling direction of the vehicle 1, and a brake device for decelerating or stopping the running device 3. The running device 3 is operated by power generated by an engine. The vehicle 1 includes a boarding door 6 provided on a side of the vehicle body 2, and a back door 7 provided on a rear part of the vehicle body 2. The boarding door 6 and the back door 7 are each movably supported by the vehicle body 2 via a hinge mechanism.

[0019] In the following description, the vehicle 1 is assumed to be placed on the ground parallel to a horizontal plane, and the positional relationship of each part will be described using the terms front, rear, up, down, left, and right with respect to the driver in the cab. In addition, in the following description, a surface parallel to the ground contact surface of the tire 4 that contacts the ground will be referred to as the "predetermined surface" as appropriate. The predetermined surface is parallel to the horizontal plane.

[0020] The up-down direction is a direction perpendicular to a specific plane. The left-right direction is a direction parallel to the rotation axis of the wheels 5 of the vehicle 1 in a straight-ahead state. The front-rear direction is a direction perpendicular to each of the up-down direction and the left-right direction. The left-right direction is synonymous with the vehicle width direction. The outer side in the vehicle width direction means a part far from the center in the vehicle width direction or a direction away from the center, and the inner side in the vehicle width direction means a part close to the center in the vehicle width direction or a direction toward the center. In addition, side means at least one of the left and right sides, and side means at least one of the left and right sides.

[0021] In this embodiment, the outside of the vehicle refers to a portion far from the center of the vehicle 1 in a predetermined plane or a direction away from the center in a radial direction relative to the center of the vehicle 1. The inside of the vehicle refers to a portion close to the center of the vehicle 1 in a predetermined plane or a direction toward the center in a radial direction relative to the center of the vehicle 1. The center of the vehicle 1 in the predetermined plane is located, for example, in the driver's cab.

[0022] In this embodiment, the vehicular lamps 100 are provided on both the left and right sides of the rear of the vehicle body 2. The structure of the vehicular lamp 100 provided on the left rear of the vehicle body 2 and the structure of the vehicular lamp 100 provided on the right rear of the vehicle body 2 are symmetrical in the left-right direction and are substantially the same structure. Below, the vehicular lamp 100 provided on the right rear of the vehicle body 2 will be mainly described, and the description of the vehicular lamp 100 provided on the left rear of the vehicle body 2 will be simplified or omitted.

[0023] 2 is a diagram showing a schematic diagram of an example of a vehicle lamp 100 according to this embodiment. In this embodiment, the vehicle lamp 100 will be described as an example of a vehicle turn signal lamp attached to the rear of a vehicle body 2 of a vehicle 1. The vehicle lamp 100 may be disposed, for example, straddling the vehicle body 2 side and the back door 7 side, or may be disposed only on either the vehicle body 2 side or the back door 7 side. The vehicle lamp 100 includes a housing 10, a light irradiation unit 20, and a control device 30.

[0024] The housing 10 accommodates a light irradiation unit 20 in a lamp chamber 11. The housing 10 may also accommodate a tail lamp that lights up in conjunction with the lighting of a head lamp, a stop lamp that lights up in conjunction with the operation of a brake device, and the like.

[0025] The light irradiation unit 20 has a plurality of lighting units. In this embodiment, for example, three lighting units (21, 22, 23) are provided. The number of lighting units may be, for example, four or more. The number of lighting units is preferably five or less. The configuration according to this embodiment is more effective when the number of lighting units is small. The lighting units 21, 22, 23 each have a so-called reflective configuration having a light source such as a semiconductor light source and a reflector that reflects light from the light source. The lighting units 21, 22, 23 are not limited to the reflective configuration, and other configurations may be used. The light irradiation unit 20 can individually control the timing of turning on and off each of the lighting units 21, 22, 23.

[0026] The lighting section 21, the lighting section 22, and the lighting section 23 are, for example, rectangular in shape extending in the left-right direction, but are not limited thereto and may be other shapes. The lighting section 21, the lighting section 22, and the lighting section 23 are arranged in a row in the left-right direction (predetermined direction). In this embodiment, the left side shown in FIG. 2 is one end side in the predetermined direction, and the right side is the other end side in the predetermined direction. Note that the predetermined direction in which the lighting section 21, the lighting section 22, and the lighting section 23 are arranged is not limited to the left-right direction, and may be the up-down direction or a direction in which the up-down direction and the left-right direction are combined (for example, a direction bending in an L shape). The lighting section 21 is the start lighting section at the most one end side. The lighting section 23 is the end lighting section at the most other end side.

[0027] The control device 30 includes a microprocessor such as a CPU (Central Processing Unit), and a memory and storage such as a ROM (Read Only Memory) or a RAM (Random Access Memory). The control device 30 outputs a control signal to the vehicle lamp 100 to control the vehicle lamp 100.

[0028] The control device 30 has a signal acquisition unit 31, a lighting control unit 32, and a storage unit 33. The signal acquisition unit 31 acquires an operation signal from an operation device 9 provided in a driver's cab of the vehicle body 2. The operation device 9 includes an operation switch for turning on a turn signal lamp, such as a direction indicator and a hazard switch mounted on the vehicle.

[0029] The lighting control unit 32 performs so-called sequential lighting, in which the multiple lighting units 21, 22, 23 are sequentially lit at a first brightness so as to delay the timing of starting lighting from the lighting unit 21 at one end in a predetermined direction to the lighting units 22, 23 at the other end.

[0030] In this sequential lighting, the lighting control unit 32 lights up the first lighting unit, which is one of the lighting units 21, 22, and 23, at the first luminance and then lights up the second lighting unit adjacent to the other end side of the first lighting unit at the first luminance, at the second luminance that is weaker than the first luminance. The second luminance can be, for example, half the luminance of the first luminance.

[0031] Furthermore, the lighting control unit 32 can light the first lighting unit at the first luminance and at the same time light the second lighting unit at the second luminance. The lighting control unit 32 can light the second lighting unit at the second luminance until the timing for lighting the second lighting unit at the first luminance arrives. In this case, the lighting control unit 32 can light the second lighting unit at the first luminance. Lighting At the timing when the second lighting section is turned on, the control section 110 performs control to switch the luminance of the second lighting section from the second luminance to the first luminance.

[0032] The storage unit 33 includes a storage device in which various control programs and data used in various control processes are stored. The storage device is, for example, a ROM, a RAM, a hard disk drive (HDD), a non-volatile or volatile semiconductor memory such as a flash memory, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, or a DVD. The storage unit 33 is implemented with one storage device or multiple storage devices. The storage unit 33 can store data related to the above-mentioned lighting control. For example, the storage unit 33 stores data related to the timing of starting lighting of the lighting units 21, 22, and 23, and the like.

[0033] Next, an example of the operation of the vehicular lamp 100 will be described. Fig. 3 is a diagram showing an example of lighting control of the light irradiation unit 20 according to this embodiment. Fig. 4 is a timing chart related to the control of each lighting unit of the light irradiation unit 20. In a state in which no signal is received from the operation device 9, the lighting control unit 32 controls each of the lighting units 21, 22, and 23 so that a reference voltage V0 is supplied thereto.

[0034] When a driver performs a predetermined operation on the operation device 9, such as operating a turn signal or a hazard switch, the vehicle lamp 100 acquires a signal from the operation device 9 at the signal acquisition unit 31. The lighting control unit 32 controls the lighting of the light irradiation unit 20 in response to the acquired signal.

[0035] 4, at time t1 when the lighting control unit 32 receives a signal from the operating device 9, the lighting control unit 32 controls so that a voltage V1 for lighting the lighting unit 21 at a first luminance is supplied to the lighting unit 21. Also, at time t1, the lighting control unit 32 controls so that a voltage V2 for lighting the lighting unit 22 at a second luminance is supplied to the lighting unit 22. Here, the second luminance can be half the luminance of the first luminance.

[0036] This control causes the vehicular lamp 100 to enter a first lighting state ST1, as shown in Fig. 3. In the first lighting state ST1, the lighting unit 21 is lit at a first luminance, the lighting unit 22 is lit at a second luminance that is half the first luminance, and the lighting unit 23 is turned off. At the start point (time t1) of the first lighting state ST1, the lighting unit 21 is lit at the first luminance and the lighting unit 22 is lit at the second luminance.

[0037] Thereafter, as shown in Fig. 4, at time t2 when lighting unit 22 is turned on at the first luminance, lighting control unit 32 controls so that voltage V3 for turning on lighting unit 22 at the first luminance is supplied to lighting unit 22. Voltage V3 may be set to, for example, the same or substantially the same value as voltage V1. Furthermore, lighting control unit 32 controls so that voltage V4 for turning on lighting unit 23 at the second luminance is supplied to lighting unit 23 at time t2. Voltage V4 may be set to, for example, the same or substantially the same value as voltage V2.

[0038] This control causes the vehicular lamp 100 to enter the second lighting state ST2, as shown in Fig. 3. The second lighting state ST2 is a state in which the lighting unit 21 continues to be lit at the first luminance, the lighting unit 22 is lit at the first luminance, and the lighting unit 23 is lit at a second luminance that is half the first luminance. At the start of the second lighting state ST2 (time t2), the lighting unit 22 switches from the second luminance to the first luminance and at the same time, the lighting unit 23 is lit.

[0039] 4, at time t3 when the lighting unit 23 is turned on at the first luminance, the lighting control unit 32 controls so that a voltage V5 for turning on the lighting unit 23 at the first luminance is supplied to the lighting unit 23. The voltage V5 may be set to be the same or substantially the same value as the voltages V1 and V3, for example.

[0040] With this control, the vehicle lamp 100 is in the third lighting state ST3 as shown in Fig. 3. In the third lighting state ST3, the lighting units 21, 22, and 23 are lit at the first luminance. In the above control, when changing from the first lighting state ST1 to the third lighting state ST3, the lighting units 22 and 23 are lit at the second luminance, which is half the luminance, before being lit at the first luminance, so that the separation between the lighting units 21, 22, and 23 is mitigated.

[0041] Thereafter, at time t4 when the lighting control unit 32 turns off the lighting units 21, 22, and 23, the lighting control unit 32 supplies the voltage V0 to the lighting units 21, 22, and 23. This turns off the lighting units 21, 22, and 23. Thereafter, the lighting control unit 32 repeats the above operation at predetermined intervals until it receives a signal from the operating device 9 indicating that the predetermined operation is to be ended.

[0042] As described above, the vehicle lamp 100 of the first embodiment comprises a plurality of lighting units 21, 22, 23 arranged in a predetermined direction, and a control device 30 which sequentially lights up the plurality of lighting units 21, 22, 23 at a first luminance so as to delay the timing of starting lighting from the lighting unit 21 at one end side of the predetermined direction to the lighting unit 23 at the other end side, and which lights up the lighting units 22, 23 at a second luminance weaker than the first luminance during the period from when the lighting unit 21, 22, 23 is a lighting unit different from the terminal lighting unit (lighting unit 23) at the other end side of the plurality of lighting units 21, 22, 23 and is turned on at the first luminance until when the lighting units 22, 23 adjacent to the lighting units 21, 22 on the other end side are turned on at the first luminance.

[0043] According to this configuration, when the lighting units 21, 22, 23 are sequentially lit at the first luminance, the second and subsequent lighting units 22, 23 are lit at the second luminance lower than the first luminance before being lit at the first luminance, so that a gradation can be formed by filling in the luminance difference between the lighting units 21, 22, 23. As a result, when sequential lighting is performed, the separation between the multiple lighting units 21, 22, 23 can be alleviated and a sense of continuity can be enhanced, so that the appearance of the vehicle lamp 100 can be improved.

[0044] In the above-described vehicle lamp 100, the control device 30 lights the lighting units 21 and 22 at the first luminance and simultaneously lights the lighting units 22 and 23 at the second luminance. This makes it possible to more effectively enhance the sense of continuity between the multiple lighting units 21, 22, and 23.

[0045] In the above-described vehicle lamp 100, the control device 30 lights the lighting units 22, 23 at the second luminance until the timing for lighting the lighting units 22, 23 at the first luminance is reached. This makes it possible to more effectively enhance the sense of continuity between the multiple lighting units 21, 22, 23.

[0046] Moreover, the second luminance is half the luminance of the first luminance, which ensures a balance between the first luminance and the second luminance, and can more effectively enhance the sense of continuity between the plurality of lighting sections 21, 22, and 23.

[0047] [Second embodiment] Next, a second embodiment will be described. In the second embodiment, the control contents of the lighting control unit 32 are different from those in the first embodiment. The following description will focus on the differences from the first embodiment.

[0048] In this embodiment, similar to the first embodiment, the lighting control unit 32 performs so-called sequential lighting in which the lighting units 21, 22, and 23 are sequentially turned on at a first luminance so as to delay the timing of starting lighting from the lighting unit 21 to the lighting units 22 and 23.

[0049] In this sequential lighting, the lighting control unit 32 makes the lighting period of the lighting unit 23, which is the terminal lighting unit at the other end (right side), longer than the period from lighting one of the multiple lighting units 21, 22, 23 that is different from the lighting unit 23, which is the terminal lighting unit at the other end (right side), to lighting the lighting units 22, 23 adjacent to the lighting units 21, 22 on the other end side.

[0050] The lighting control unit 32 can make the lighting period of the lighting unit 23, which is the end lighting unit, shorter than the sequential period (Ts: see FIG. 6) from the timing of lighting start of the lighting unit 21, which is the start end lighting unit on the most one end side among the multiple lighting units 21, 22, and 23, to the timing of lighting start of the lighting unit 23, which is the end lighting unit. The lighting control unit 32 can set this sequential period Ts to, for example, 0.10 seconds or more and 0.15 seconds or less, and preferably 0.12 seconds. By setting the sequential period Ts to 0.10 seconds or more, the sequential lighting can be sufficiently recognized from the outside. In addition, by setting the sequential period Ts to 0.15 seconds or less, it is possible to ease the separation between the lighting units and sufficiently enhance the sense of continuity. The lighting control unit 32 can make the initial lighting period from lighting the lighting unit 21, which is the start end lighting unit, to lighting the lighting unit 22 adjacent to the lighting unit 21 on the other end side among the multiple periods longer than the other periods.

[0051] Other configurations of the vehicular lamp 100 are similar to those of the first embodiment.

[0052] Next, another example of the operation of the vehicular lamp 100 will be described. Fig. 5 is a diagram showing another example of the lighting control of the light irradiation unit 20 according to this embodiment. Fig. 6 is a timing chart relating to the control of each lighting unit of the light irradiation unit 20. As in the above example of operation, in a state in which no signal is received from the operation device 9, the lighting control unit 32 controls so that the reference voltage V0 is supplied to each of the lighting units 21, 22, and 23.

[0053] Furthermore, when a driver performs a predetermined operation on the operation device 9, such as operating a turn signal or a hazard switch, the vehicle lamp 100 acquires a signal from the operation device 9 at the signal acquisition unit 31. The lighting control unit 32 controls the lighting of the light irradiation unit 20 in response to the acquired signal.

[0054] As shown in Fig. 6, at time t5 when the lighting control unit 32 receives a signal from the operation device 9, the lighting control unit 32 controls so that a voltage V1 for lighting the lighting unit 21, which is the start lighting unit, at a first luminance is supplied. By this control, the vehicular lamp 100 enters a fourth lighting state ST4 as shown in Fig. 5. In the fourth lighting state ST4, the lighting unit 21 is lit at the first luminance, and the lighting units 22 and 23 are turned off.

[0055] The fourth lighting state ST4 continues until time t6 when the lighting unit 22 is turned on at the first luminance. In this embodiment, the period during which the fourth lighting state ST4 continues is a period T1 from time t5 when the lighting unit 21, which is the starting lighting unit, is turned on to time t6 when the lighting unit 22 adjacent to the other end side of the lighting unit 21 is turned on. The period T1 is the initial lighting period.

[0056] Thereafter, as shown in Fig. 6, the lighting control unit 32 controls so that a voltage V3 for lighting the lighting unit 22 at the first luminance is supplied to the lighting unit 22 at a time t6 when the lighting unit 22 is turned on at the first luminance. With this control, the vehicular lamp 100 enters a fifth lighting state ST5 as shown in Fig. 5. In the fifth lighting state ST5, the lighting unit 21 continues to be turned on at the first luminance, the lighting unit 22 is turned on at the first luminance, and the lighting unit 23 is turned off.

[0057] The fifth lighting state ST5 continues until time t7 when the lighting unit 23 is turned on at the first luminance. In this embodiment, the period T2 during which the fifth lighting state ST5 continues is shorter than the initial lighting period T1. In other words, the initial lighting period T1 is longer than the period T2. By making the initial lighting period T1 longer than the other period (period T2 in this embodiment) in this way, the flow of lighting of the lighting units 21, 22, and 23 in sequential lighting can be emphasized.

[0058] Thereafter, as shown in Fig. 6, the lighting control unit 32 controls so that a voltage V5 for lighting the lighting unit 23 at the first luminance is supplied to the lighting unit 23 at a time point t7 when the lighting unit 23, which is the final lighting unit, is turned on at the first luminance. With this control, the vehicular lamp 100 enters a sixth lighting state ST6 as shown in Fig. 5. The sixth lighting state ST6 is a state in which the lighting units 21, 22, and 23 are turned on at the first luminance.

[0059] The sixth lighting state ST6 continues until time t8 when the lighting units 21, 22, and 23 are turned off. In this embodiment, the period during which the sixth lighting state ST6 continues, i.e., the period T3 during which the lighting unit 23 is turned on, is longer than the sequential period Ts from time t5 when the lighting unit 21, which is the starting lighting unit, starts to light up to time t7 when the lighting unit 23, which is the ending lighting unit, starts to light up. By making the lighting period of the lighting unit 23, which is the ending lighting unit, longer than the sequential period Ts in this way, the flow of lighting of the lighting units 21, 22, and 23 in the sequential lighting can be emphasized.

[0060] Thereafter, at time t8 when the lighting control unit 32 turns off the lighting units 21, 22, and 23, the lighting control unit 32 supplies the voltage V0 to the lighting units 21, 22, and 23. As a result, the lighting units 21, 22, and 23 are turned off.

[0061] As described above, the vehicle lamp 100 of the second embodiment comprises a plurality of lighting units 21, 22, 23 arranged in a predetermined direction, and a control device 30 which sequentially lights up the plurality of lighting units 21, 22, 23 at a first luminance so as to delay the timing of start of lighting from the lighting unit 21 at one end side of the predetermined direction to the lighting unit 23 at the other end side, and which makes the lighting period of the lighting unit 23 longer than the period between lighting one lighting unit 21, 22 other than the lighting unit 23 which is the terminal lighting unit among the plurality of lighting units 21, 22, 23 and lighting the lighting units 22, 23 adjacent to the lighting units 21, 22 on the other end side.

[0062] According to this configuration, the lighting sequence of the lighting units 21, 22, and 23 can be emphasized in sequential lighting by making the lighting period of the lighting unit 23, which is the last lighting unit, longer than the period from when the lighting units 21 and 22 are turned on until the lighting units 22 and 23 adjacent to the lighting units 21 and 22 on the other end side are turned on. This enhances the sense of continuity when sequential lighting is performed by the multiple lighting units 21, 22, and 23, and improves the appearance of the vehicle lamp 100. In addition, since only one type of driving voltage is required to drive the lighting units 21, 22, and 23, the circuitry in the control device 30 is not complicated.

[0063] In the above-described vehicle lamp 100, the control device 30 sets the lighting period of the lighting unit 23 to be longer than a sequential period Ts from a time t5 when the lighting unit 21, which is the start lighting unit among the plurality of lighting units, starts lighting to a time t7 when the lighting unit 23 starts lighting. long According to this configuration, by making the lighting period of lighting unit 23, which is the final lighting unit, longer than the sequential period Ts, it is possible to emphasize the flow of lighting of lighting units 21, 22, and 23 in sequential lighting.

[0064] In the above-described vehicle lamp 100, the control device 30 sets the sequential period Ts to 0.12 seconds. This makes it possible to fully recognize the sequential lighting from the outside, reduces the separation between each lighting section, and fully enhances the sense of continuity.

[0065] In the above-mentioned vehicle lamp 100, three or more lighting units 21, 22, and 23 are arranged, and the control device 30 makes the initial lighting period T1, which is from lighting the lighting unit 21, which is the starting lighting unit, to lighting the lighting unit 22, longer than the other period (T2) among the multiple periods T1 and T2. This makes it possible to emphasize the flow of lighting of the lighting units 21, 22, and 23 in sequential lighting.

[0066] The technical scope of the present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit of the present invention. For example, in the above first embodiment, the second luminance is half the luminance of the first luminance, but the present invention is not limited to this. The second luminance can be set to any value as long as it is smaller than the first luminance.

[0067] In the above first embodiment, the lighting units 21 and 22 are lit at the first luminance and the lighting units 22 and 23 are lit at the second luminance at the same time, but the present invention is not limited to this. For example, the lighting units 22 and 23 may be lit at the second luminance after a predetermined period of time has elapsed since the lighting units 21 and 22 were lit at the first luminance.

[0068] In the above first embodiment, the lighting units 22, 23 are lit at the second luminance until the lighting units 22, 23 are lit at the first luminance, but the present invention is not limited to this. For example, the lighting units 22, 23 may be turned off after a predetermined period of time has elapsed since the lighting units 22, 23 were lit at the second luminance, and then the lighting units 22, 23 may be lit at the first luminance.

[0069] In the above first and second embodiments, the case where three lighting units are arranged has been described as an example, but the present invention is not limited thereto. Four or more lighting units may be arranged. In the second embodiment, when four or more lighting units are arranged, the period from when a first lighting unit different from the terminal lighting unit among the multiple lighting units 21, 22, and 23 is turned on to when a second lighting unit adjacent to the other end side of the first lighting unit is turned on can be made to become shorter in sequence from the initial lighting period T1 to the next or subsequent periods. This makes it possible to emphasize the flow of multiple lighting units in sequential lighting. [Explanation of symbols]

[0070] ST1...first lighting state, ST2...second lighting state, ST3...third lighting state, ST4...fourth lighting state, ST5...fifth lighting state, ST6...sixth lighting state, T1, T2, T3...period (T1...initial lighting period), Ts...sequential period, V0, V1, V2, V3, V4, V5...voltage (V0...reference voltage), 1...vehicle, 2...body, 3...running mechanism, 4...tire, 5...wheel, 6...boarding door, 7...back door, 9...operation device, 10...housing, 11...lamp chamber, 20...light irradiation unit, 21, 22, 23...lighting unit, 30...control device, 31...signal acquisition unit, 32...lighting control unit, 33...storage unit, 100...vehicle lamp

Claims

1. Three lighting units arranged in the left-right direction; a control device which sequentially lights up the three lighting sections so as to delay the timing of lighting from the lighting section at one end side in the left-right direction to the lighting section at the other end side among the three lighting sections, and which makes a terminal lighting period during which the terminal lighting section is lit longer than each lighting period from the start of lighting of each of the three lighting sections that is different from the terminal lighting section at the most other end side to the start of lighting of the lighting section adjacent to each of the lighting sections on the other end side with respect to the respective lighting sections, and which makes an initial lighting period from the start of lighting of the beginning lighting section at the most one end side of the three lighting sections to the start of lighting of the lighting section adjacent to the beginning lighting section on the other end side among the plurality of lighting periods longer than the other lighting periods that are different from the terminal lighting period; Equipped with Among the three lighting units, the start-end lighting unit and the lighting unit adjacent to the start-end lighting unit in the left-right direction are disposed on a movable unit side that is movable with respect to the vehicle body of the vehicle, and are controlled by the control device to be lit at the same brightness, The end lighting portion is disposed on the vehicle body side of the vehicle and has a shape extending in the left-right direction. Vehicle lighting fixtures.

2. The control device sets the end lighting period to be longer than a sequential period from the timing at which the beginning lighting section starts lighting to the timing at which the end lighting section starts lighting.

2. A vehicle lamp according to claim 1.

3. The control device sets the sequential period to 0.12 seconds.

3. A vehicle lamp according to claim 2.

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