JP6943534B2 - Vehicle lights - Google Patents

Description

The present invention relates to a vehicle lighting device.

Vehicles such as automobiles are provided with lights at the front and rear. Examples of vehicle lights include direction indicators that are installed on the left and right sides of the front and rear of the vehicle and are turned on when the vehicle turns left or right or when the vehicle changes lanes to indicate the direction of course change. In the case of a turn signal, it has a light emitting region that emits light to the outside (front or rear) of the vehicle along the vehicle width direction.

Light emitting diodes (LEDs) are increasingly being used as light sources for vehicle lighting. Recently, a method in which a plurality of LEDs are arranged in the vehicle width direction, each LED is sequentially emitted from the inside (center side) of the vehicle to the outside, and the LEDs are sequentially lit so as to flow in the direction of changing the course of the vehicle. Direction indicators (sequential turns) have been proposed (see, for example, Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2014-229510 Japanese Unexamined Patent Publication No. 2016-124501

Sequential lighting type turn signals have the advantage of making it easier for other traffic to recognize the direction of the vehicle's course change, and its adoption is expected to increase in the future. However, in the conventional vehicle lighting equipment, in order to realize sequential lighting, a large number of light sources such as LEDs (for example, 5 or more, and 10 or more) are actually arranged, and a large number of light sources are used. Therefore, there is a problem that the manufacturing cost is high. Therefore, it is desired to develop a vehicle lighting device that enables sequential lighting with a small number of light sources.

One of an object of the present invention is to provide a vehicle lighting device that enables sequential lighting with a small number of light sources.

When sequential lighting is performed by a conventional vehicle lighting device, a certain number of light sources are required in order to operate the lighting so as to flow without discomfort, and it is difficult to reduce the number of light sources used. Therefore, the present inventor proposes to use a deflection γ motion illusion (also referred to as “line motion illusion”) in order to reduce the number of light sources used. In the polarized γ motion illusion, for example, a point-shaped light emitter and a rod-shaped linear light-emitting body extending laterally from the point-shaped light-emitting body are arranged side by side, and after the point-shaped light-emitting body is turned on, a line is formed. When the linear illuminant is turned on, it is an optical illusion that the linear illuminant is perceived as lit so as to extend laterally (flow) even though the entire linear illuminant is lit at the same time. be. That is, in a vehicle lighting device, the light emitting region arranged along the vehicle width direction is divided into a point-like region and a linear region, and the dot-like region and the linear region are lit in order to create a deflection γ motion illusion. Therefore, it is possible to make it appear as if the light emitting region is lit so as to flow.

The present invention has been made based on the above findings. Hereinafter, the present invention will be described.

(1) The vehicle lighting device according to one aspect of the present invention is
A vehicle lamp provided on at least one of the front or rear of a vehicle and having a light emitting region along the vehicle width direction.
A first light emitting unit having a first light source, causing the light source to emit light, and lighting a point-shaped region located inside in the vehicle width direction in the light emitting region.
A second light source having a second light source, causing the light source to emit light, extending from the point-shaped region in the light emitting region to the outside in the vehicle width direction, and lighting a linear region longer in the vehicle width direction than the point-shaped region. Light source and
It is provided with a lighting control circuit that sequentially causes the first and second light sources to emit light within a predetermined time and turns on the first light emitting unit and the second light emitting unit in order.

(2) As one aspect of the vehicle lighting device, the following can be mentioned.
The lighting control circuit gradually increases the brightness of the first light emitting unit and the second light emitting unit, and lights the second light emitting unit before the brightness of the first light emitting unit reaches the maximum value.
The time from the start of lighting to the completion of the second light emitting unit is controlled to be shorter than the time from the start of lighting of the first light emitting unit to the completion of lighting.

(1) The vehicle lighting device lights a first light emitting unit that lights a point-shaped region located inside in the vehicle width direction in the light emitting region, and a linear region that extends from the point-shaped region in the light emitting region to the outside in the vehicle width direction. By providing a second light emitting unit for lighting and a lighting control circuit for lighting the first light emitting unit and the second light emitting unit in order, sequential lighting is possible with a small number of light sources. Specifically, by lighting the first light emitting unit and the second light emitting unit in order by the lighting control circuit, the light emitting region apparently moves from the inside to the outside in the vehicle width direction by utilizing the deflection γ motion illusion. It can be made to look like it is lit in a flowing manner. Further, each of the first light emitting unit and the second light emitting unit has one light source (first and second light sources), and the number of light sources used can be reduced to two. Therefore, according to the vehicle lighting device described in (1) above, the number of light sources is only two, and it is possible to perform sequential lighting while reducing the number of light sources used as compared with the conventional case. , Manufacturing cost can be reduced.

(2) By gradually increasing the brightness of the first light emitting unit and the second light emitting unit and turning on the second light emitting unit before the brightness of the first light emitting unit reaches the maximum value, the first light emitting unit becomes the first light emitting unit. On the other hand, it can be made to appear that the second light emitting unit is continuously lit. Therefore, according to the aspect described in (2) above, it is possible to perform sequential lighting with good appearance without a sense of discomfort.

By the way, in the case of a sequential lighting type turn signal (sequential turn), in Japan, it is stipulated by law that the entire light emitting area is lit within a predetermined time (specifically, within 200 ms). Therefore, it is necessary to complete the lighting of the first light emitting unit and the second light emitting unit within a predetermined time. On the other hand, the more moderately slow the time from the start of lighting of the first light emitting unit to the start of lighting of the second light emitting unit within a predetermined time, the more likely the deflection γ motion illusion occurs, and the more the light emitting region flows. The effect of making the light appear to be lit (hereinafter, may be referred to as "sequential effect") becomes higher. That is, by controlling so that the time from the start of lighting of the second light emitting unit to the completion is shorter than the time from the start of lighting of the first light emitting unit to the completion of lighting, the second light emitting unit is controlled. It is possible to delay the time until the lighting of is started, and it is easy to obtain a sequential effect due to an optical illusion. Therefore, according to the aspect described in (2) above, it is also possible to effectively perform sequential lighting.

It is a schematic front view of the vehicle to which the vehicle lighting device according to the first embodiment is applied, as viewed from the front. FIG. 6 shows a main part of the structure of the vehicle lighting device according to the first embodiment, and is a schematic partial cross-sectional view taken along the line II-II of FIG. The lighting display state of the vehicle lighting device according to the first embodiment is described, and is a schematic front view of a light emitting region viewed from the front of the vehicle. It is explanatory drawing which shows the lighting control procedure of the vehicle lighting device which concerns on Embodiment 1. FIG.

Specific examples of the vehicle lighting device according to the embodiment of the present invention will be described with reference to the drawings. The same reference numerals in the figures indicate the same names. In the following explanation, "front", "rear", "top", "bottom", "left", and "right" mean the direction in which the front of the vehicle is "front" and is used as a reference. In the figure, the arrow FR is the front side in the vehicle front-rear direction, the arrow RR is the rear side, the arrow UP is the upper side in the vehicle vertical direction, the arrow LWR is the lower side, the arrow LH is the left side in the vehicle left-right direction (vehicle width direction), and the arrow. RH indicates the right side, arrow IN indicates the inside (center side) in the vehicle width direction, and arrow OUT indicates the outside. FIG. 2 shows a main part of the structure of the vehicle lighting device, and is a cross-sectional view of the vehicle lighting device cut in a horizontal plane orthogonal to the vertical direction as viewed from above.

[Embodiment 1]
The vehicle lighting device 1 according to the first embodiment will be described with reference to FIGS. 1 to 4. In the first embodiment, as shown in FIG. 1, an example in which the vehicle lighting device 1 is applied to the direction indicators provided on the left and right sides of the front portion of the vehicle C will be described. The vehicle lighting device 1 has a light emitting region 100 along the vehicle width direction. The light emitting region 100 is a portion of the vehicle lighting device 1 that emits light to the outside (here, forward) of the vehicle C. As shown in FIG. 2, one of the features of the vehicle lighting device 1 is a first light emitting unit 10 that lights a point-shaped region 101 (see FIG. 3) of the light emitting region 100, and a linear region 102 of the light emitting region 100. A second light emitting unit 20 for lighting (see FIG. 3) and a lighting control circuit 31 for controlling the lighting operation of the first light emitting unit 10 and the second light emitting unit 20 are provided. Hereinafter, the configuration of the vehicle lighting device 1 will be described mainly with reference to FIG. Since the vehicle lamps 1 on both the left and right sides shown in FIG. 1 have a substantially symmetrical structure, only the vehicle lamp 1 on the right side will be described, and the description of the vehicle lamp 1 on the left side will be omitted. In FIGS. 2 and 3, the arrow OUT side corresponds to the right side of the vehicle.

<overall structure>
The vehicle lighting device 1 is attached to the vehicle C (see FIG. 1) and includes a housing (not shown) for storing the first light emitting unit 10 and the second light emitting unit 20 and the inner lens 40 shown in FIG. There is. The first light emitting unit 10, the second light emitting unit 20, and the inner lens 40 are respectively mounted in the housing. An opening is formed in the housing from the front surface to the outer surface, and a transparent cover (outer lens) (not shown) is arranged so as to cover the opening. The inner lens 40 is arranged in front of the first light emitting unit 10 and the second light emitting unit 20, and diffuses and transmits the light emitted from the first light emitting unit 10 and the second light emitting unit 20. The outer lens is arranged in front of the inner lens 40 so as to cover the inner lens 40, and the light transmitted through the inner lens 40 is emitted through the outer lens. The outer lens and inner lens 40 are made of, for example, a transparent resin such as an acrylic resin (PMMA) or a polycarbonate resin (PC) or glass.

(1st light emitting part)
As shown in FIG. 2, the first light emitting unit 10 has a first light source 11, causes the light source 11 to emit light, and lights a point-shaped region 101 located inside in the vehicle width direction in the light emitting region 100. In this example, the first light source 11 is arranged inside in the vehicle width direction and is attached so as to emit light toward the outside (front) of the vehicle. Further, the first light emitting unit 10 has a condensing lens 12 that condenses the light emitted from the first light source 11, and the condensing lens 12 is arranged in front of the light source 11. The condenser lens 12 is provided at a position corresponding to the point-shaped region 101. Then, when the first light source 11 is made to emit light, the light emitted from the light source 11 is transmitted through the condenser lens 12 and condensed, and is transmitted through the inner lens 40 located in front of the condenser lens 12 and emitted. (In FIG. 2, the dotted arrow indicates the direction of light). As a result, light is emitted forward from the point-shaped region 101 to light the point-shaped region 101 (see FIG. 3, particularly (B)). The length of the dotted region 101 in the vehicle width direction is, for example, 1/4 or less of the total length of the light emitting region 100, and further 1/6 or less.

In the present embodiment, the LED is used as the first light source 11, the light source 11 is mounted on the substrate 30, and the substrate 30 is supported in the housing. Further, the condenser lens 12 may or may not be provided as needed. The condenser lens 12 is made of a transparent resin such as PMMA or PC.

(2nd light emitting part)
As shown in FIG. 2, the second light emitting unit 20 has a second light source 21, causes the light source 21 to emit light, and is a linear region located outside the point-shaped region 101 in the light emitting region 100 in the vehicle width direction. Turn on 102. The linear region 102 extends from the point-shaped region 101 to the outside in the vehicle width direction in the light emitting region 100, and is longer in the vehicle width direction than the point-shaped region 101. The dotted region 101 and the linear region 102 may partially overlap each other. The second light emitting unit 20 has a rod-shaped light guide 22 extending along the vehicle width direction. The light guide body 22 receives light emitted from the second light source 21 and guides the light along the longitudinal direction (vehicle width direction) while reflecting the incident light in the longitudinal direction (vehicle width direction). Light is emitted from the outer surface of the light guide 22 toward the outside (front) of the vehicle. Although not shown, a large number of inclined surfaces arranged in parallel in the longitudinal direction of the light guide body 22 are formed inside the light guide body 22, and these inclined surfaces form a light guide body. Light traveling along the longitudinal direction of 22 is reflected toward the front side and emitted. In this example, the second light source 21 is arranged inside in the vehicle width direction and is attached so as to emit light toward the front. Further, the light guide body 22 extends toward the light incident surface 22i in which the light emitted from the second light source 21 is incident on the end surface on one end side located inside in the vehicle width direction, and is incident on the light incident surface in the vehicle width direction. It has a light emitting surface 22o that emits light incident from the surface 22i forward in the vehicle width direction. The light guide body 22 is arranged adjacent to the outside of the condenser lens 12 in the vehicle width direction, is provided at a position corresponding to the linear region 102, and bends outward in the vehicle width direction from one end on the inside in the vehicle width direction. However, it is formed so as to be curved and extended toward the outside. Then, when the second light source 21 is made to emit light, the light emitted from the light source 21 is incident on the light incident surface 22i of the light guide body 22 to guide the light, and is emitted from the light emitting surface 22o to be emitted from the light emitting surface 22o. It is emitted through the inner lens 40 located in front of (light emitting surface 22o) (in FIG. 2, the dotted arrow indicates the direction of light). As a result, light is emitted forward from the linear region 102 to light the linear region 102 (see FIG. 3, particularly (C)). The length of the linear region 102 in the vehicle width direction is, for example, three times or more, further five times or more the length of the point-shaped region 101.

In this embodiment, an LED is used as the second light source 21, and the light source 21 is mounted on a substrate 30 common to the first light source 11. The light guide body 22 is formed of, for example, a transparent resin such as PMMA or PC. In this example, the condenser lens 12 and the light guide body 22 are integrally molded.

(Lighting control circuit)
The lighting control circuit 31 sequentially causes the first and second light sources 11 and 21 to emit light within a predetermined time, and sequentially lights the first light emitting unit 10 and the second light emitting unit 20. The lighting control circuit 31 is mounted on the substrate 30 shown in FIG. 2, and controls the light emitting operation of each of the light sources 11 and 21 based on the lighting operation signal input by the operation of a lighting switch (not shown), and the first light emission is performed. The lighting operation of the unit 10 and the second light emitting unit 20 is performed. Specifically, the currents flowing through the first and second light sources 11 and 21 are controlled so that the timing of energizing the light source 21 with respect to the light source 11 is not shifted (delayed), so that the light sources 11 and 21 are energized. Is sequentially emitted, and the first light emitting unit 10 and the second light emitting unit 20 are turned on in this order. That is, after the first light source 11 (first light emitting unit 10) is made to emit light (lights), the second light source 21 (second light emitting unit 20) is made to emit light (lights) within a predetermined time. As a result, as shown in FIG. 3, by lighting the point-like region 101 and the linear region 102 in the light-emitting region 100 in order, the light-emitting region 100 flows from the inside to the outside by the above-mentioned deflection γ motion illusion. It can be made to look like it is lit. Therefore, it is apparently possible to perform sequential lighting. Before starting the lighting operation of the first light emitting unit 10 and the second light emitting unit 20 (for example, before the lighting operation signal is input), the light emitting region 100 (dotted region 101 and linear region 102) is turned off. It is in a state (see FIG. 3 (A)).

In this example, the predetermined time is 0.2 ms. Further, the lighting control circuit 31 turns on the first light emitting unit 10 and the second light emitting unit 20 in order to bring the light emitting region 100 into a fully lit state (see FIG. 3D), and then both the first and second light emitting units. The light sources 11 and 21 are extinguished at the same time to turn off the first light emitting unit 10 and the second light emitting unit 20, and the light emitting region 100 is controlled to blink by repeating turning on and off.

In the present embodiment, as shown in FIG. 4, the lighting control circuit 31 gradually increases the brightness of the first light emitting unit 10 and the second light emitting unit 20, and the brightness of the first light emitting unit 10 reaches the maximum value. The second light emitting unit 20 is controlled to be turned on before reaching the limit. FIG. 4 is a graph (time-brightness curve) showing the relationship between the elapsed time from the start of lighting of the first light emitting unit 10 and the second light emitting unit 20 and the brightness, and the horizontal axis (x) is the time t (unit). : Ms (milliseconds)), vertical axis (y) is brightness B (unit: lm (lumens)). In FIG. 4, for convenience, the graph of the first light emitting unit 10 is shown by the alternate long and short dash line, and the graph of the second light emitting unit 20 is shown by the alternate long and short dash line. The brightness of the first light emitting unit 10 and the second light emitting unit 20 is determined by the amount of light of the first and second light sources 11 and 21, and is basically proportional to the magnitude of the current flowing through the light sources 11 and 21. Therefore, the brightness of the first light emitting unit 10 and the second light emitting unit 20 can be gradually increased by increasing the current flowing through the light sources 11 and 21 with the passage of time.

Further, in the present embodiment, as shown in FIG. 4, in the lighting control circuit 31, the second light emitting unit 20 starts lighting more than the time from the start of lighting of the first light emitting unit 10 to the completion of lighting. Control so that the time from to completion is shortened.

In the example shown in FIG. 4, the brightness of the first light emitting unit 10 and the second light emitting unit 20 is increased exponentially with respect to the elapsed time. In general, the brightness perceived by humans is proportional to the logarithm of the physical brightness. Therefore, by increasing the brightness of the first light emitting unit 10 and the second light emitting unit 20 exponentially, the brightness changes with time. Changes are easily perceived. In this example, the case where the brightness of the first light emitting unit 10 and the second light emitting unit 20 is increased exponentially is illustrated, but the respective brightness is increased linearly (linear function). May be good.

The lighting control and operation of the vehicle lighting device 1 in the present embodiment will be described in detail with reference mainly to FIGS. 3 and 4. Here, the time when the first light emitting unit 10 starts lighting is Ts ₁ , the time when the lighting is completed is Te ₁ , the time when the second light emitting unit 20 starts lighting is Ts ₂ , and the time when the lighting is completed is Te. _{Let it be 2,} and let Tp be the predetermined time, and Bmax be the maximum value of the brightness of the first light emitting unit 10 and the second light emitting unit 20. _{Here, the times Te 1} and Te ₂ at which the lighting is completed mean the time when the brightness reaches the maximum value Bmax. In this example, when the lighting start time Ts ₁ of the first light emitting unit 10 is set to 0, the lighting completion time Te ₁ is 150 ms, the lighting start time Ts ₂ of the second light emitting unit 20 and the lighting completion time Te ₂ are 100 ms and 200 ms. , The predetermined time Tp is 200 ms. In FIG. 3, the + -shaped dots in the figure represent brightness, and the higher the density of the dots, the brighter it is.

In FIG. 4, when the time t is 0 (0 = t), the brightness B of the first light emitting unit 10 and the second light emitting unit 20 is 0 (that is, the first light emitting unit 10 and the second light emitting unit 20 are in a state of 0. It is the state before lighting). In this case, as shown in FIG. 3A, the light emitting region 100 (dotted region 101 and linear region 102) is turned off.

When the lighting operation of the first light emitting unit 10 and the second light emitting unit 20 is started by the lighting control circuit 31 shown in FIG. 2, as shown in FIG. 4, the second light emission is performed from _{the lighting start time Ts 1 of the first light emitting unit 10.} Since the lighting start time Ts ₂ of the unit 20 is late (Ts ₁ <Ts ₂ ), only the first light emitting unit 10 starts lighting first. For example, in FIG. 4, when the time t is 100 ms or less (0 <t ≦ 100), only the first light emitting unit 10 is in the lighting state, and the second light emitting unit 20 is in the pre-lighting state. As shown in B), only the point-shaped region 101 in the light emitting region 100 is lit.

After a certain period of time has elapsed (100 ms in this example) after the first light emitting unit 10 starts lighting, the second light emitting unit 20 starts lighting with a delay. Further, in the present embodiment, since the second light emitting unit 20 is turned on before the brightness of the first light emitting unit 10 reaches the maximum value Bmax, the second light emitting unit is turned on from _{the lighting completion time Te 1 of the first light emitting unit 10.} The lighting start time Ts _{2 of} 20 is early (Ts ₂ <Te ₁ ), and the lighting of the second light emitting unit 20 is started before the lighting of the first light emitting unit 10 is completed. For example, in FIG. 4, when the time t is more than 100 ms and 150 ms or less (100 <t ≦ 150), the first light emitting unit 10 and the second light emitting unit 20 are in the lit state. As shown, the point-shaped region 101 and the linear region 102 in the light emitting region 100 are in a lit state. At this time, the brightness of the first light emitting unit 10 is brighter than that of the second light emitting unit 20, and the point-shaped region 101 is lit brighter than the linear region 102. Then, when the time t is 150 ms (t = 150), the brightness of the first light emitting unit 10 reaches the maximum value Bmax, and the first light emitting unit 10 is in the lighting complete state.

Further, the second light emitting unit 20 is turned on before the brightness of the first light emitting unit 10 reaches the maximum value, and the period from when the first light emitting unit 10 starts lighting to when it is completed and the second light emitting unit 10 are turned on. The period from the start of lighting of the unit 20 to the completion of lighting partially overlaps. In this example, this overlapping time (Te _1- Ts ₂ ) is 50 ms. As a result, it is possible to make the second light emitting unit 20 appear to be continuously lit with respect to the first light emitting unit 10.

Further, when a predetermined time Tp (200 ms in this example) elapses after the first light emitting unit 10 starts lighting, the lighting of the second light emitting unit 20 is completed. For example, in FIG. 4, when the time t is more than 150 ms and 200 ms or less (150 <t ≦ 200), the first light emitting unit 10 is in the lighting complete state and the second light emitting unit 20 is in the lighting state. Then, when the time t is 200 ms (t = 200), the brightness of the second light emitting unit 20 reaches the maximum value Bmax, and the second light emitting unit 20 is in the lighting complete state. In this case, FIG. 3 (D) shows. As shown, the light emitting region 100 is in a fully lit state.

Further, in the present embodiment, as shown in FIG. 4, the second light emitting unit 20 starts lighting more than the time from the start of lighting of the first light emitting unit 10 to the completion (Te _1- Ts _1). The time from the start to the completion (Te _2- Ts ₂ ) is controlled to be short. That is, the rate of change (slope) of the brightness of the second light emitting unit 20 with respect to time is larger than the rate of change (slope) of the brightness of the first light emitting unit 10 with respect to time. Thus, with respect to the lighting start time Ts ₁ of the first light emitting portion 10, it is possible to slow down the lighting start time Ts ₂ of the second light emitting unit 20. In general, the lighting interval between the point-shaped region 101 and the linear region 102 is large, in other words, the time from the start of lighting of the first light emitting unit 10 to the start of lighting of the second light emitting unit 20 is moderately slow, as described above. The deflection γ motion illusion is likely to occur, and the effect of making the light emitting region 100 appear to flow from the inside to the outside tends to be higher. _{By delaying the lighting start time Ts 2} of the second light emitting unit 20 by the above control, a sequential effect due to an optical illusion can be easily obtained. _{When the lighting start time Ts 1} of the first light emitting unit 10 is used as a reference, the lighting start time Ts ₂ of the second light emitting unit 20 may be, for example, 50 ms or more and 150 ms or less, and further 80 ms or more and 120 ms or less. Further, the lighting completion time Te ₁ of the first light emitting unit 10 may be set to, for example, 100 ms or more and 200 ms or less, and the lighting completion time Te _{1 of the first light emitting unit 10 and the lighting start time Ts 2} of the second light emitting unit 20 The difference (Te _1- Ts ₂ ) is, for example, 20 ms or more and 100 ms or less.

<Effect>
The vehicle lighting device 1 of the first embodiment described above utilizes the deflected γ motion illusion by lighting the first light emitting unit 10 (dotted region 101) and the second light emitting unit 20 (linear region 102) in order. Therefore, it is possible to make it appear that the light emitting region 100 is lit so as to flow from the inside to the outside. Further, the first light emitting unit 10 and the second light emitting unit 20 each have one light source (first and second light sources 11, 21), and the number of light sources used can be two. Therefore, the vehicle lighting device 1 can be sequentially lit with a smaller number of light sources as compared with the conventional one, and the manufacturing cost can be reduced.

Further, the brightness of the first light emitting unit 10 and the second light emitting unit 20 is gradually increased, and the second light emitting unit 20 is turned on before the brightness of the first light emitting unit 10 reaches the maximum value. It is possible to make it appear that the second light emitting unit 20 is continuously lit with respect to the light emitting unit 10. Therefore, it is possible to perform sequential lighting with good appearance without any discomfort.

Further, the time from the start of lighting of the second light emitting unit 20 to the completion is shorter than the time from the start of lighting of the first light emitting unit 10 to the completion of lighting, so that the first light emitting unit 10 is lit. It is possible to delay the time from the start of the operation until the second light emitting unit 20 starts lighting. Therefore, the sequential effect due to the optical illusion can be easily obtained, and the sequential lighting can be effectively performed.

The present invention is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims. For example, in the above-described first embodiment, as shown in FIG. 1, a case where the vehicle lighting device 1 is applied to the direction indicator provided at the front portion of the vehicle C has been described as an example. Not limited to this, the vehicle lighting device of the present invention can also be applied to a direction indicator provided at the rear of the vehicle C. Further, although LEDs are taken as an example as the first and second light sources 11 and 21, the present invention is not limited to this, and a light emitting element such as a light bulb may be adopted.

The vehicle lighting device of the present invention can be suitably used as a turn signal for an automobile.

C Vehicle 1 Vehicle lighter (direction indicator)
100 Light emitting area 101 Point-shaped area 102 Linear area 10 First light emitting part 11 First light source 12 Condensing lens 20 Second light emitting part 21 Second light source 22 Light guide 22i Light incident surface 22o Light emitting surface 30 Substrate 31 Lighting control circuit 40 Inner lens

Claims (1)

A vehicle lamp provided on at least one of the front or rear of a vehicle and having a light emitting region along the vehicle width direction.
A first light emitting unit having a first light source, causing the light source to emit light, and lighting a point-shaped region located inside in the vehicle width direction in the light emitting region.
A second light source having a second light source, causing the light source to emit light, extending from the point-shaped region in the light emitting region to the outside in the vehicle width direction, and lighting a linear region longer in the vehicle width direction than the point-shaped region. Light source and
Wherein the first and second light sources sequentially emit light within a predetermined time, e Bei and a lighting control circuit for lighting the first light emitting portion and the second light emitting portion in order,
The lighting control circuit
The brightness of the first light emitting unit and the second light emitting unit is gradually increased, and the second light emitting unit is turned on before the brightness of the first light emitting unit reaches the maximum value.
A vehicle lighting device that controls so that the time from the start of lighting to the completion of the second light emitting unit is shorter than the time from the start of lighting to the completion of the first light emitting unit.

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