JP7006430B2 - Vehicle lighting - Google Patents

Description

The present disclosure relates to vehicle lamps.

Vehicle lamps are known to form a predetermined light distribution pattern by using light from a light source.

A vehicle lamp is known to form a predetermined light distribution pattern by providing an upper reflector portion and a lower reflector portion on the upper and lower sides so as to sandwich a light source (see, for example, Patent Document 1 and the like). This vehicle lighting fixture has a predetermined arrangement of direct light from a light source, reflected light emitted from the light source and reflected by the upper reflector, and reflected light emitted from the light source and reflected by the lower reflector. Form a light pattern.

Japanese Unexamined Patent Publication No. 2013-20709

By the way, in the above-mentioned conventional vehicle lighting equipment, a portion where the amount of light is partially increased may be formed in the vicinity of the upper end of the formed light distribution pattern, and there is a risk of giving a sense of discomfort due to a strong difference in brightness.

The present disclosure has been made in view of the above circumstances, and an object of the present invention is to provide a lighting fixture for a vehicle capable of suppressing the formation of a portion having a strong difference in brightness in the vicinity of the upper end of the formed light distribution pattern. And.

The vehicle lighting equipment of the present disclosure has a first reflector that reflects light emitted from a first light source to form a low beam light distribution pattern, and a first reflector that reflects light emitted from a second light source to form a high beam light distribution pattern. The second reflector comprises two reflectors, the second reflector having an upper reflector portion provided above the second light source and a lower reflector portion provided below the second light source, and the high beam. The light distribution pattern is the direct light from the second light source, the lower reflected light reflected toward the lower side of the direct light by the upper reflector portion, and the upper side of the direct light by the lower reflector portion. The lower reflector portion is formed by the upper reflected light reflected toward the surface, and the lower reflector portion has a light amount reducing portion that reduces the reflected light amount at the tip portion of the lower reflecting surface that reflects the light emitted from the second light source. It is characterized by being provided.

According to the vehicle lighting equipment of the present disclosure, it is possible to suppress the formation of a portion having a strong difference in brightness due to the formation of a portion having a large amount of light in the vicinity of the upper end of the formed light distribution pattern.

It is explanatory drawing which shows the structure of the vehicle lamp as an example which concerns on one Embodiment of the vehicle lamp which concerns on this disclosure. It is explanatory drawing which shows the high beam light distribution pattern and low beam light distribution pattern. It is explanatory drawing which shows the appearance which the 2nd light source and the 2nd reflector are seen from the front. It is explanatory drawing which shows the high beam light distribution part which forms the high beam light distribution pattern. It is explanatory drawing for demonstrating the effect of the diffuse reflection surface in a high beam light distribution pattern. It is the same explanatory view as FIG. 2 which shows the appearance which the 2nd light source and the 2nd reflector of Example 2 were seen from the front. It is explanatory drawing for demonstrating the effect of the black-painted surface in a high beam light distribution pattern.

Hereinafter, each embodiment of the vehicle lamp 10 as an embodiment of the vehicle lamp according to the present disclosure will be described with reference to FIGS. 1 to 7.

The vehicle lighting tool 10 is used as a lighting tool used for a vehicle such as an automobile, and is used for, for example, a head lamp, a fog lamp, or the like. The vehicle lighting fixture 10 has a vertical optical axis adjusting mechanism and a horizontal optical axis adjustment in a lighting chamber formed by covering the open front end of the lamp housing with an outer lens on both the left and right sides of the front part of the vehicle. It is provided via a mechanism. In the following description, in the vehicle lighting tool 10, the traveling direction when the vehicle travels straight is the front-rear direction, the vertical direction when mounted on the vehicle is the vertical direction, and the directions orthogonal to the front-rear direction and the vertical direction are the left-right directions. And.

As shown in FIG. 1, the vehicle lamp 10 includes a first light source 11, a heat sink member 12, a first reflector 13, a second light source 14, a second reflector 15, a projection lens 16, a lens holder 17, and a cooling fan unit 18. To form a projector-type headlight unit.

The first light source 11 is composed of a light emitting element such as an LED (Light Emitting Diode) and is mounted on the first substrate 21. The first substrate 21 is arranged on the upper surface 12a of the heat sink member 12, and a power supply holder is attached from above. The terminals of the first substrate 21 are connected to the terminals provided on the power supply holder and fixed to the upper surface 12a. .. As a result, the first light source 11 is appropriately lit by supplying electric power from the lighting control circuit via the power supply holder.

The heat sink member 12 is a heat radiating member that releases heat generated by the first light source 11 and heat generated by the second light source 14 to the outside, and radiates heat to the outside from a plurality of heat radiating fins 12b provided on the lower surface. In the heat sink member 12, the first reflector 13 is provided on the upper surface 12a, and the second substrate 22 described later is provided on the front surface 12c.

The first reflector 13 is attached to the upper surface 12a so as to cover the first substrate 21. The first reflector 13 is a free curved surface based on an ellipse having the first light source 11 as the first focal point and the vicinity of the upper end edge 23a of the upper reflector portion 23 described later as the second focal point of the second reflector 15. There is. The first reflector 13 reflects the light from the first light source 11 forward and emits it through the projection lens 16 to form a low beam light distribution pattern LP (see FIG. 2).

The second light source 14 is composed of a light emitting element such as an LED and is mounted on the second substrate 22. The second substrate 22 is arranged on the front surface 12c of the heat sink member 12. The second substrate 22 of the first embodiment is inclined so as to be located on the front side toward the lower side. This is because the cooling fan unit 18 can be provided below the heat sink member 12 while the upper end edge 23a of the upper reflector portion 23, which will be described later, is located at or near the focal position of the projection lens 16. By mounting the second light source 14 on the second substrate 22 inclined in this way, the emitted optical axis is inclined forward and diagonally upward. The second substrate 22 is fixed to the front surface 12c, and supplies power from the lighting control circuit to the second light source 14 via a connector provided on the surface opposite to the surface on which the second light source 14 is mounted. .. As a result, the second light source 14 is appropriately turned on. A second reflector 15 is provided corresponding to the second light source 14. The configuration of the second reflector 15 will be described in detail later.

The projection lens 16 projects the light reflected by the first reflector 13 (the reflecting surface thereof) toward the front of the vehicle to form a low beam light distribution pattern LP (see FIG. 2). Further, the projection lens 16 is emitted from the light (upper reflected light Ru, lower reflected light Rl) reflected by the second reflector 15 (the upper reflecting surface 25 and the lower reflecting surface 26 described later) and the second light source 14. The generated light (direct light Dl) is projected to the front of the vehicle to form a high beam light distribution pattern HP (see FIG. 2). The projection lens 16 of the first embodiment is provided with fine diamond-shaped irregularities (microstructures) on the incident surface 16a on the side of the first light source 11 and the second light source 14, from the first light source 11 and the second light source 14. The light amount of the low beam light distribution pattern LP and the high beam light distribution pattern HP is equalized.

The projection lens 16 is supported by the lens holder 17. The lens holder 17 is assembled to the heat sink member 12 in a state where the projection lens 16 is positioned with respect to the first light source 11, the first reflector 13, the second light source 14, and the second reflector 15.

The cooling fan unit 18 is configured by rotatably providing a cooling fan 18b connected to a motor in a rectangular parallelepiped frame body 18a, and is attached below the heat radiation fins 12b of the heat sink member 12. When the first light source 11 or the second light source 14 emits light, the cooling fan unit 18 drives the motor to rotate the cooling fan 18b and cools the heat radiation fins 12b of the heat sink member 12, so that the first light source 11 And prevent problems caused by the heat generated by the second light source 14.

Next, the configuration for forming the high beam light distribution pattern HP will be described. First, the vehicle lighting tool 10 of the first embodiment is an ADB (Adaptive Driving Beam), and has a plurality of high beam light distribution units hp in which high beam light distribution pattern HPs are arranged in the left-right direction. By forming and turning on and off each high beam light distribution unit hp, it is possible to partially turn off the light in a specific direction. Therefore, in the vehicle lamp 10, as shown in FIG. 3, a plurality of second light sources 14 are individually provided for forming each high beam light distribution unit hp, and each second light source 14 is second. They are aligned in the left-right direction on the substrate 22. The number of the second light sources 14 to be aligned is appropriately set to be an even number or an odd number, and is 11 in the first embodiment. Each of the second light sources 14 is supplied with electric power from the lighting control circuit and is appropriately turned on all at once or individually.

The light emitted from each of the second light sources 14 is reflected forward by the second reflector 15, as shown in FIGS. 1 and 3. The light emitted from each of the second light sources 14 and reflected by the second reflector 15 forms a high beam light distribution section hp, and together they form a high beam light distribution pattern HP (see FIG. 2). .. The second reflector 15 has an upper reflector portion 23 located above each second light source 14 and a lower reflector portion 24 located below each second light source 14.

The upper reflector portion 23 is attached to the upper side of the second light source 14 in the second substrate 22, and has a plate shape extending in the left-right direction. In the upper reflector portion 23, the lower surface facing the lower reflector portion 24 is the upper reflecting surface 25. The upper reflecting surface 25 has a free curved surface based on an ellipse with the second light source 14 as the first focal point, and the high beam light distribution pattern HP is generated by the upper reflected light Ru reflecting the light emitted from the second light source 14. The lower portion hpl (see FIG. 4) described later in (each high beam light distribution unit hp) is formed.

The upper end edge 23a (see FIG. 1) of the upper reflector portion 23 has a cut-off line Cl (see FIG. 2) in the low beam light distribution pattern LP formed by the light emitted from the first light source 11 and reflected by the first reflector 13. It has the function of forming. The upper end edge 23a has a shape in which two horizontal edges having different heights are joined by an inclined edge. Therefore, in the low beam light distribution pattern LP, a part of the light emitted from the first light source 11 and reflected by the first reflector 13 is blocked by the upper end edge 23a, so that two horizontal lines are inclined lines on the upper edge. The cut-off line Cl connected by is formed.

The lower reflector portion 24 is attached to the lower side of the second light source 14 in the second substrate 22, extends in the left-right direction like the upper reflector portion 23, and protrudes forward and downward more than the upper reflector portion 23. It is said to be plate-shaped. In the lower reflector portion 24, the upper surface facing the upper reflector portion 23 (upper reflecting surface 25) is the lower reflecting surface 26. The lower reflecting surface 26 has a free curved surface with the second light source 14 as the first focal point, and the lower reflected light Rl reflecting the light emitted from the second light source 14 is used as the high beam light distribution pattern HP (each high beam). The upper portion hpu described later in the light distribution unit hp) is formed. Here, the second light source 14 is mounted on the inclined second substrate 22, so that the emitted optical axis is inclined forward and diagonally upward. For this reason, the lower reflector portion 24 is larger than the upper reflector portion 23 and protrudes downward on the front side, and is curved upward toward the lower end and extends to the front side (see FIG. 1). As a result, the lower reflector portion 24 is capable of receiving more light emitted from the second light source 14 whose optical axis is inclined forward and diagonally upward, and is formed by the lower reflecting surface 26. It is possible to increase the upper portion hpu upward.

In the lower reflector portion 24, a diffuse reflection surface 27 is provided on the tip portion 26a of the lower reflection surface 26. The diffuse reflection surface 27 has a reflection characteristic in which the ratio of the diffuse reflection component is larger than that of the specular reflection component (the glossiness is low), and is formed by, for example, embossing or blasting. .. Therefore, the diffuse reflection surface 27 functions as a light amount reducing unit for reducing the reflected light amount. The diffuse reflection surface 27 is provided in a range from the tip 26b of the lower reflection surface 26 to a predetermined width dimension toward the base end side, and covers the entire area of the lower reflection surface 26 in the left-right direction (width direction). Has been done. This predetermined width dimension corresponds to the region where the light streaks described later are formed in the upper portion hpu formed by the lower reflected light Rl from the lower reflecting surface 26, and is about as an example in the first embodiment. It is set to 1.5 mm.

In the vehicle lighting equipment 10, the electric power from the lighting control circuit is supplied to the first light source 11 via the first substrate 21, so that the first light source 11 is appropriately turned on. Upon this lighting, the vehicle lamp 10 reflects the light from the first light source 11 by the first reflector 13 and emits it from the projection lens 16, so that the low beam light distribution pattern LP having a cut-off line Cl on the upper edge (FIG. 2) is formed.

Further, in the vehicle lighting tool 10, the electric power from the lighting control circuit is supplied to each second light source 14 via the second substrate 22, so that each second light source 14 is appropriately lit and each high beam light distribution unit hp. To form. At this time, each of the second light sources 14 uses a part of the emitted light as direct light Dl directed toward the direct projection lens 16, and the direct light Dl is emitted from the projection lens 16 to form a middle portion hpm in each high beam light distribution unit hp. (See FIG. 4) is formed. Further, each of the second light sources 14 uses a part of the emitted light as the upper reflected light Ru that faces the upper reflecting surface 25 of the upper reflector portion 23 and is reflected there, and the upper reflected light Ru is emitted from the projection lens 16. A lower portion hpl (see FIG. 4) is formed in each high beam light distribution unit hp. Further, each of the second light sources 14 uses a part of the emitted light as the lower reflected light Rl that faces the lower reflecting surface 26 of the lower reflector portion 24 and is reflected there, and the lower reflected light Rl is the projection lens 16. It is emitted from the high beam light distribution unit hp to form an upper portion hpu (see FIG. 4). Each high beam light distribution section hp has a positional relationship in which the lower part of the middle part hpm and the upper part of the lower part hpl partially overlap, and the upper part of the middle part hpm and the lower part of the upper part hpu partially overlap. They are formed as one (see FIG. 4). The vehicle lighting equipment 10 forms a high beam light distribution pattern HP as a unit while arranging the high beam light distribution units hp in the left-right direction (see FIG. 2).

Therefore, the vehicle lamp 10 can form a low beam light distribution pattern LP having a cut-off line Cl by turning on the first light source 11, and a high beam light distribution pattern HP can be formed by turning on each of the second light sources 14. It can be formed (see FIG. 2). By controlling the lighting of the first light source 11 and each second light source 14, the vehicle lamp 10 can appropriately form the low beam light distribution pattern LP and the high beam light distribution pattern HP at the same time or only one of them. Further, the vehicle lamp 10 can not form only the high beam light distribution unit hp in the corresponding direction by turning off the second light source 14 located in an arbitrary direction among the second light sources 14, and the ADB can be used. Functions can be realized.

Here, the vehicle lamp 10 is provided with a diffuse reflection surface 27 on the tip portion 26a of the lower reflection surface 26 of the lower reflector portion 24. Therefore, it is possible to suppress the formation of light streaks near the upper end of the high beam light distribution pattern HP. This is due to the following.

In the vehicle lighting equipment 10, it may be required to expand the formed high beam light distribution pattern HP upward. Here, assuming that the setting of the optical system such as the projection lens 16 is not changed in the vehicle lamp 10, the position of each second light source 14 on the focal plane of the projection lens 16 is expanded downward to distribute high beam light. The pattern HP, that is, each high beam light distribution unit hp can be expanded upward. Then, by expanding the lower reflecting surface 26 of the lower reflector portion 24 that reflects the light from each second light source 14 downward, the position of each second light source 14 on the focal plane of the projection lens 16 is lowered. You can get the same effect as expanding it. Here, the lower reflector portion 24 has a plate shape that is larger than the upper reflector portion 23 and protrudes downward on the front side, and is curved upward toward the lower end and extends straight forward. It is possible to receive more light from each of the second light sources 14.

As a result, the vehicle lighting fixture 10 can form an upper portion hpu whose dimensions are expanded upward, and can form each high beam light distribution unit hp, that is, a high beam light distribution pattern HP whose dimensions are expanded upward. However, since the lower reflecting surface 26 curves upward and extends forward toward the lower end, the light reflected by the tip portion 26a of the lower reflecting surface 26 gathers in a narrow range. The amount of light near the upper end of the upper portion hpu (the area with dots in FIG. 5) increases. Then, in the upper portion hpu, the mode of reflection due to the unevenness (microstructure) of the projection lens 16 is partially emphasized, so that a streak of light may be formed in the vicinity of the upper end. Therefore, in the high beam light distribution pattern HP in which each high beam light distribution unit hp is integrated, a streak of light may be formed in the vicinity of the upper end to form a strong difference in brightness. Such a strong difference in brightness may adversely affect the visibility of the portion illuminated by the high beam light distribution pattern HP.

On the other hand, since the vehicle lighting fixture 10 is provided with the diffuse reflection surface 27 on the tip portion 26a of the lower reflection surface 26 of the lower reflector portion 24, the light reflected by the tip portion 26a gathers in a narrow range. Therefore, the amount of light in the vicinity of the upper end of the upper portion hpu (the region with dots in FIG. 5) in each high beam light distribution unit hp can be reduced. Therefore, in the vehicle lamp 10, it becomes difficult to visually recognize the mode of reflection due to the unevenness (microstructure), it is possible to suppress the formation of light streaks in the vicinity of the upper end, and it is possible to suppress the formation of a strong light-dark difference. .. In particular, in the vehicle lighting fixture 10, since the range in which the diffuse reflection surface 27 is provided is set to a position corresponding to the region where the light streaks are formed, the light streaks are formed more appropriately and a strong light-dark difference is formed. It can be suppressed. As a result, the vehicle lighting fixture 10 can suppress the formation of light streaks near the upper end of the high beam light distribution pattern HP formed by each high beam light distribution unit hp and the formation of a strong light-dark difference. Therefore, the visibility of the portion illuminated by the high beam light distribution pattern HP can be improved.

The vehicle lamp 10 of the first embodiment can obtain the following effects.

The vehicle lamp 10 reflects the light from the first light source 11 by the first reflector 13 to form a low beam light distribution pattern LP, and reflects the light from the second light source 14 by the second reflector 15 to form a high beam light distribution. Form a pattern HP. The high beam light distribution pattern HP is formed by direct light Dl from the second light source 14, lower reflected light Rl from the upper reflector portion 23, and upper reflected light Ru from the lower reflector portion 24. The lower reflector portion 24 is provided with a light amount reducing portion (diffuse reflecting surface 27 in Example 1) at the tip portion 26a of the lower reflecting surface 26 to reduce the reflected light amount. Therefore, the vehicle lighting equipment 10 can suppress the formation of a portion having a strong difference in brightness in the vicinity of the upper end of the upper portion hpu in each high beam light distribution portion hp, that is, in the vicinity of the upper end of the high beam light distribution pattern HP. As a result, the vehicle lamp 10 can suppress the formation of light streaks near the upper end of the high beam light distribution pattern HP.

The vehicle lamp 10 is provided with a light amount reducing portion (diffuse reflecting surface 27) over the entire area of the tip portion 26a of the lower reflecting surface 26 in the left-right direction. Therefore, the vehicle lamp 10 can suppress the formation of a portion having a strong difference in brightness in the vicinity of the upper end over the entire area of the high beam light distribution pattern HP in the left-right direction.

The vehicle lamp 10 is provided with a diffuse reflection surface 27 as a light amount reducing portion. For this reason, the vehicle lighting fixture 10 is to increase the upward dimension without causing a decrease in brightness in the high beam light distribution pattern HP while suppressing the formation of a portion having a strong partial difference in brightness near the upper end. Can be done.

Therefore, in the vehicle lamp 10 of the first embodiment as the vehicle lamp according to the present disclosure, a portion having a strong difference in brightness is partially formed in the vicinity of the upper end of the formed light distribution pattern (high beam light distribution pattern HP). Can be suppressed.

In the first embodiment, the diffuse reflection surface 27 (light amount reduction portion) is provided over the entire area of the tip portion 26a of the lower reflection surface 26 in the left-right direction. However, if the diffuse reflection surface 27 can suppress the formation of a portion having a strong difference in brightness in the vicinity of the upper end of the light distribution pattern (high beam light distribution pattern HP), for example, the left and right of the tip portion 26a. It may be provided only near the center of the direction, or may be partially provided at another position of the tip portion 26a, and is not limited to the configuration of the first embodiment.

Further, in the first embodiment, a diffuse reflection surface 27 is provided at the tip portion 26a as a light amount reducing portion. However, the tip portion 26a may be provided with the black painted surface 28 of the second embodiment as long as it is provided with a light amount reducing portion for reducing the reflected light amount, may be formed by a dent or a hole, or may be formed by another configuration. Well, it is not limited to the configuration of the first embodiment.

Next, the vehicle lamp 10A of the second embodiment, which is an embodiment of the present disclosure, will be described with reference to FIGS. 6 and 7. The vehicle lamp 10A is a modification of the configuration of the light amount reducing unit in the vehicle lamp 10 of the first embodiment. Since the vehicle lighting fixture 10A has the same basic concept and configuration as the vehicle lighting fixture 10 of the first embodiment, the same reference numerals are given to the parts having the same configuration, and detailed description thereof will be omitted.

As shown in FIG. 6, the vehicle lighting fixture 10A of the second embodiment is provided with a black painted surface 28 at the center in the left-right direction of the tip portion 26a of the lower reflecting surface 26A of the lower reflector portion 24A. The black-painted surface 28 is obtained by partially applying black paint to the lower reflective surface 26A, and the reflectance is significantly reduced as compared with the peripheral lower reflective surface 26A. Therefore, the black coated surface 28 functions as a light amount reducing portion for reducing the reflected light amount.

The black-painted surface 28 is provided at the center of the tip portion 26a of the lower reflective surface 26A in the left-right direction at a predetermined distance from the tip 26b. The center in the left-right direction corresponds to a region where color unevenness, which will be described later, is formed in the high beam light distribution pattern HP formed by the lower reflected light Rl from the lower reflecting surface 26A. In the second embodiment, the positions corresponding to the three central positions of the 11 second light sources 14 are set as the center in the left-right direction, and the left-right lengths about the optical axis of the vehicle lamp 10A are equal to each other. ing. The range in the left-right direction in which the black painted surface 28 is provided may be appropriately set, and is not limited to the configuration of the second embodiment.

Further, the predetermined distance from the tip 26b is set from the viewpoint of preventing the formation of a dent at the upper end in the high beam light distribution pattern HP formed by the lower reflected light Rl. That is, when the black coated surface 28 is provided in contact with the tip 26b of the lower reflecting surface 26A, the tip of the reflecting region on the lower reflecting surface 26A is partially chipped, so that the high beam light distribution occurs. In the pattern HP, the upper end corresponding to the tip of the lower reflective surface 26A is partially chipped. Therefore, the high beam light distribution pattern HP has a dent formed at the upper end, and a person who sees the dent may feel a sense of discomfort. On the other hand, since the vehicle lamp 10A is provided with the black-painted surface 28 at a predetermined distance from the tip 26b, it is used as a region for reflecting the tip side of the lower reflective surface 26A with respect to the black-painted surface 28. Can be made to work. Therefore, in the vehicle lighting equipment 10A, the outer shape of the high beam light distribution pattern HP corresponds to the lower reflecting surface 26A while reducing the amount of light in the vicinity of the upper end of the high beam light distribution pattern HP (the area with dots in FIG. 7). You can make it perfect.

The vehicle lighting fixture 10A of the second embodiment is provided with a black painted surface 28 on the tip portion 26a of the lower reflecting surface 26A of the lower reflector portion 24A. Therefore, it is possible to suppress the formation of color unevenness in the vicinity of the upper end of the high beam light distribution pattern HP. This is due to the following.

Similar to the lower reflector portion 24 of the first embodiment, the lower reflector portion 24A of the vehicle lamp 10A has a plate shape that is larger than the upper reflector portion 23 and protrudes forward and downward, and moves upward toward the lower end. It is supposed to extend to the front side while curving. Therefore, in the vehicle lamp 10A, the light reflected by the tip portion 26a of the lower reflecting surface 26A gathers in a narrow range, and the amount of light near the upper end of each upper portion hpu increases. Then, in the formed high beam light distribution pattern HP, the vicinity of the upper end may become bright and the influence of chromatic aberration due to the projection lens 16 may be conspicuous, and color unevenness may be formed near the upper end to form a strong difference in brightness. .. This color unevenness is often recognized in the vicinity of the upper end of the center because the amount of light in the vicinity of the upper end of the center in the left-right direction is the largest in the high beam light distribution pattern HP. Such a strong difference in brightness may adversely affect the visibility of the portion illuminated by the high beam light distribution pattern HP.

On the other hand, since the vehicle lighting fixture 10A is provided with the black painted surface 28 in the center of the tip portion 26a of the lower reflecting surface 26A of the lower reflector portion 24A, the amount of reflected light at a location where light can be collected in a narrow range. Can be significantly reduced, and the amount of light in the vicinity of the upper end of the center (the region with dots in FIG. 7) in the high beam light distribution pattern HP can be reduced. Therefore, the vehicle lamp 10A can suppress the influence of chromatic aberration from being conspicuous, and can suppress the formation of color unevenness in the vicinity of the upper end and the formation of a strong difference in brightness. Therefore, the visibility of the portion illuminated by the high beam light distribution pattern HP can be improved. In particular, in the vehicle lamp 10A, since the range where the black painted surface 28 is provided is a position corresponding to the region where the color unevenness is formed, the color unevenness is formed more appropriately and a strong light-dark difference is formed. Can be suppressed. In addition, since the vehicle lighting fixture 10A is provided with the black painted surface 28 at a position at a predetermined distance from the tip 26b of the lower reflecting surface 26A, there is no partial chipping at the upper end of the high beam light distribution pattern HP. However, it is possible to suppress an increase in the amount of light near the upper end, and it is possible to suppress the formation of color unevenness and the formation of a strong difference in brightness. Further, since the vehicle lamp 10A is provided with the black painted surface 28 having the same length to the left and right about the optical axis, the lower side common to the case where it is provided on the right side and the case where it is provided on the left side of the vehicle. The reflector unit 24A can be used.

Since the vehicle lamp 10A of the second embodiment has basically the same configuration as the vehicle lamp 10 of the first embodiment, the same effect as that of the first embodiment can be obtained.

In addition, the vehicle lamp 10A is provided with a light amount reducing portion (black painted surface 28 in the second embodiment) at the tip portion 26a of the lower reflecting surface 26A of the lower reflector portion 24A. Therefore, the vehicle lamp 10A can suppress the formation of a portion having a strong difference in brightness due to the formation of a portion having a partially large amount of light in the vicinity of the upper end of the center of the high beam light distribution pattern HP. .. Therefore, the vehicle lamp 10A can suppress the formation of color unevenness near the upper end of the center of the high beam light distribution pattern HP and the formation of a strong light-dark difference.

Further, the vehicle lamp 10A is provided with a light amount reducing portion (black painted surface 28 in the first embodiment) for reducing the reflected light amount at the tip portion 26a of the lower reflecting surface 26A at a predetermined distance from the tip 26b. ing. Therefore, in the vehicle lighting equipment 10, a portion having a strong difference in brightness is partially formed in the vicinity of the upper end of the high beam light distribution pattern HP without partially chipping the upper end of the high beam light distribution pattern HP. Can be suppressed. As a result, the vehicle lamp 10 can prevent a person who sees the high beam light distribution pattern HP from feeling uncomfortable.

Further, the vehicle lamp 10A is provided with a black painted surface 28 as a light amount reducing portion. Therefore, the vehicle lamp 10A is intended to adjust the amount of light in the high beam light distribution pattern HP and to form the shape of the high beam light distribution pattern HP, but can suppress the partial increase in brightness near the upper end.

Therefore, in the vehicle lamp 10A of the second embodiment as the vehicle lamp according to the present disclosure, a portion having a strong difference in brightness is partially formed in the vicinity of the upper end of the formed light distribution pattern (high beam light distribution pattern HP). Can be suppressed.

In the second embodiment, the black coated surface 28 (light amount reducing portion) is provided at the center of the lower reflecting surface 26A in the left-right direction at a predetermined distance from the tip 26b. .. However, as long as the black coated surface 28 can suppress the formation of a portion having a strong difference in brightness in the vicinity of the upper end of the light distribution pattern (high beam light distribution pattern HP), for example, as in Example 1. It may be provided over the entire area of the tip portion 26a in the left-right direction, or may be partially provided at another position of the tip portion 26a, and is not limited to the configuration of the first embodiment.

Further, in the first embodiment, the black coated surface 28 is provided on the tip portion 26a as a light amount reducing portion. However, if the tip portion 26a is provided with a light amount reducing portion for reducing the reflected light amount, the diffuse reflection surface 27 of the first embodiment may be provided, may be formed by a dent or a hole, or may be formed by another configuration. Well, it is not limited to the configuration of the first embodiment.

Although the vehicle lamps of the present disclosure have been described above based on the first embodiment, the specific configuration is not limited to the first embodiment and deviates from the gist of the invention according to each claim within the scope of the claims. Unless otherwise, design changes or additions are allowed.

In each embodiment, the function of ADB can be realized by not forming an arbitrary high beam light distribution unit hp in the high beam light distribution pattern HP. However, in the vehicle lighting equipment, the light from the first light source 11 is reflected by the first reflector 13 to form a low beam light distribution pattern LP, and the light from the second light source 14 is reflected by the second reflector 15 to form a lower reflection. The high beam light distribution pattern HP may be formed by the light Rl, the upper reflected light Ru, and the direct light Dl from the second light source 14, and is not limited to the configuration of each embodiment.

10 Vehicle lighting 11 1st light source 13 1st reflector 14 2nd light source 15 2nd reflector 23 Upper reflector part 24 Lower reflector part 26 Lower reflecting surface 26a Tip part 26b Tip 27 Diffuse reflecting surface 28 Black painted surface Dl Direct light HP High beam light distribution pattern LP Low beam light distribution pattern Rl Lower reflected light Ru Upper reflected light

Claims (6)

The first reflector that reflects the light emitted from the first light source to form a low beam light distribution pattern,
It is equipped with a second reflector that reflects the light emitted from the second light source to form a high beam light distribution pattern.
The second reflector has an upper reflector portion provided above the second light source and a lower reflector portion provided below the second light source.
The high beam light distribution pattern includes direct light from the second light source, lower reflected light reflected by the upper reflector portion toward the lower side of the direct light, and direct light reflected by the lower reflector portion. Formed by the upper reflected light reflected toward the upper side,
The lower reflector portion is provided with a light amount reducing portion for reducing the reflected light amount at the tip end portion of the lower reflecting surface that reflects the light emitted from the second light source. The vehicle lamp according to claim 1, wherein the light amount reducing portion is provided over the entire area of the tip portion in the left-right direction. The vehicle lamp according to claim 1, wherein the light amount reducing portion is provided at a tip portion thereof at a predetermined distance from the tip of the lower reflective surface. The vehicle lamp according to any one of claims 1 to 3, wherein the light amount reducing unit is a diffuse reflection surface. The vehicle lamp according to any one of claims 1 to 3, wherein the light amount reducing portion is a black-painted surface. The vehicle lamp according to any one of claims 1 to 5.
Further, the light reflected by the first reflector is projected forward to form the low beam light distribution pattern, and the direct light, the lower reflected light, and the upper reflected light are projected forward to form the high beam. A vehicle lighting fixture characterized by having a projection lens that forms a light distribution pattern.

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