Vehicle lamp

Abstract

A vehicle lamp includes: a first light source unit that directly or indirectly emits light in a vertical direction; a first reflector having a first reflecting surface that reflects, in the front direction, a portion of the light emitted from the first light source unit; a second reflector having a pair of second reflecting surfaces disposed above the first reflecting surfaces, the second reflector reflecting light that is not reflected by the first reflecting surfaces among the light emitted from the first light source unit in a left-right direction intersecting the front-back direction and the vertical direction; a third reflector having a pair of third reflecting surfaces disposed in the left and right directions of the first reflecting surface corresponding to the pair of second reflecting surfaces, the third reflector reflecting the light reflected by the pair of second reflecting surfaces in the forward direction; and a first lens including an emission surface, the light reflected by the first reflection surface and the light reflected by the pair of third reflection surfaces respectively enter the first lens and are emitted from the emission surface in the forward direction, and the maximum length of the first lens in the vertical direction is shorter than the maximum length of the first lens in the left-right direction.

Description

Technical Field

[0001] The present disclosure relates to a vehicle lamp. Background Art

[0002] Conventionally, vehicle lamps having light-emitting elements such as LEDs (Light Emitting Diodes) are known. For example, Patent Document 1 discloses a vehicle lamp including a semiconductor light source, a first reflector having a reflecting surface for reflecting light emitted from the semiconductor light source, a second reflector having reflecting surfaces respectively disposed on both sides of the semiconductor light source, and a first projection lens for projecting light from the first reflector forward.

[0003] <Prior Art Documents>

[0004] <Patent Documents>

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2012-134174 Summary of the Invention

[0006] <Problems to be Solved by the Invention>

[0007] In a vehicle lamp, in order to improve the vehicle designability when the vehicle lamp is disposed on a vehicle, it is sometimes necessary to shorten the maximum length of the light-emitting surface of the vehicle lamp in the vertical direction. However, in the vehicle lamp described in Patent Document 1, if the maximum length of the light-emitting surface of the vehicle lamp in the vertical direction is shortened, the light emitted from the first projection lens will decrease, and thus the light extraction efficiency of the vehicle lamp may be reduced.

[0008] An object of an embodiment of the present disclosure is to provide a vehicle lamp having high light extraction efficiency while shortening the maximum length of the light-emitting surface in the vertical direction.

[0009] <Means for Solving the Problems>

[0010] A vehicle lamp according to an embodiment of the present disclosure is a vehicle lamp capable of irradiating light through an emission surface in the forward direction of the front-rear direction intersecting the vertical direction, and includes: a first light source unit capable of directly or indirectly emitting light in a direction along the vertical direction; a first reflector having a first reflection surface that reflects a part of the light emitted from the first light source unit in the forward direction; a second reflector having a pair of second reflection surfaces disposed above the first reflection surface along the vertical direction, and the pair of second reflection surfaces can reflect, in the left-right direction intersecting the front-rear direction and the vertical direction respectively, the light emitted from the first light source unit that is not reflected by the first reflection surface to the left direction and the right direction; a third reflector having a pair of third reflection surfaces disposed on the left and right of the first reflection surface corresponding to the pair of second reflection surfaces in the left-right direction, and the pair of third reflection surfaces reflect the light reflected by the pair of second reflection surfaces to the forward direction; a first lens including the emission surface, the light reflected by the first reflection surface and the light reflected by the pair of third reflection surfaces are respectively incident on the first lens and emitted to the forward direction through the emission surface, and the maximum length of the first lens in the vertical direction is shorter than the maximum length of the first lens in the left-right direction.

[0011] <Effects of the Invention>

[0012] According to an embodiment of the present disclosure, it is possible to provide a vehicle lamp with high light extraction efficiency while shortening the maximum length of the emission surface in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic perspective view of the vehicle lamp according to Embodiment 1.

[0014] Figure 2 is a schematic exploded perspective view of the vehicle lamp according to Embodiment 1.

[0015] Figure 3 is a schematic top view of the vehicle lamp according to Embodiment 1.

[0016] Figure 4 is a schematic front view of the vehicle lamp according to Embodiment 1.

[0017] Figure 5 is a schematic side view of the vehicle lamp according to Embodiment 1.

[0018] Figure 6 is Figure 3 a schematic cross-sectional view taken along line VI-VI in

[0019] Figure 7 is Figure 3Schematic cross-sectional view taken along line VII-VII in

[0020] Figure 8 is Figure 5 Schematic cross-sectional view taken along line VIII-VIII in

[0021] Figure 9 is a schematic top view showing the first light source unit of the vehicle lamp according to Embodiment 1.

[0022] Figure 10 is a diagram showing the relationship between the spread angle of the light emitted from the vehicle lamp according to Embodiment 1 in the left-right direction and the angle formed by a pair of third reflecting surfaces.

[0023] Figure 11 is a diagram showing the low beam light distribution of the vehicle lamp according to Embodiment 1.

[0024] Figure 12 is a schematic side view of the vehicle lamp according to Embodiment 2.

[0025] Figure 13 is a schematic top view of the vehicle lamp according to Embodiment 3.

[0026] Figure 14 is a schematic front view of the vehicle lamp according to Embodiment 3.

[0027] Figure 15 is a diagram showing the light distribution of the four first units provided in the vehicle lamp according to Embodiment 3.

[0028] Figure 16 is a diagram showing the light distribution of the three second units provided in the vehicle lamp according to Embodiment 3. Detailed Embodiments

[0029] Regarding the vehicle lamp according to the embodiment of the present disclosure, a detailed description will be given with reference to the accompanying drawings. However, the following embodiments are examples of vehicle lamps that embody the technical idea of the present disclosure and are not limited thereto. In addition, the dimensions, materials, shapes, relative arrangements, etc. of the structural parts described in the embodiments are only illustrative examples unless otherwise specified, and the scope of the present disclosure is not limited thereto. In addition, for the sake of clarity, the sizes, positional relationships, etc. of the components shown in the respective drawings may be enlarged. In the following description, the same names and symbols denote the same or homogeneous components, and detailed descriptions may be appropriately omitted. As cross-sectional views, end views showing only the cut surfaces may sometimes be used.

[0030] In the respective drawings, directions are expressed using orthogonal coordinates including the X-axis, Y-axis, and Z-axis. The X-axis, Y-axis, and Z-axis are orthogonal to each other. The X-direction along the X-axis represents the left-right direction, the Y-direction along the Y-axis represents the vertical direction, and the Z-direction along the Z-axis represents the front-back direction. The direction indicated by the arrow in the X-direction is the +X direction, and the direction opposite to the +X direction is the -X direction. The +X direction corresponds to the left direction, and the -X direction corresponds to the right direction. The direction indicated by the arrow in the Y-direction is the +Y direction, and the direction opposite to the +Y direction is the -Y direction. The +Y direction corresponds to the upward direction, and the -Y direction corresponds to the downward direction. The direction indicated by the arrow in the Z-direction is the +Z direction, and the direction opposite to the +Z direction is the -Z direction. The +Z direction corresponds to the front direction, and the -Z direction corresponds to the back direction. However, the vertical direction, left-right direction, and front-back direction do not necessarily have to be orthogonal to each other as long as they intersect.

[0031] In the terms of the embodiments, the top view refers to the view of the object observed from above. The front view in the terms of the embodiments refers to the view of the object observed from the front direction. The side view in the terms of the embodiments refers to the view of the object observed from the right direction. In the embodiments shown below, the meaning of along the X-axis, Y-axis, and Z-axis includes the case where the object is inclined within ±20° with respect to these axes.

[0032] In addition, in the specification or claims, when there are multiple structural elements and they need to be distinguished and expressed separately, "first", "second", etc. can be added at the beginning of the structural element for distinction. In addition, the objects to be distinguished may be different in the specification and claims. Therefore, even when a structural element with the same symbol as in the specification is recorded in the claims, the object determined by the structural element may not be consistent between the specification and the claims.

[0033] [Embodiment 1]

[0034] <Structure of the vehicle lamp according to Embodiment 1>

[0035] Refer to Figures 1 to 10 , and the structure of the vehicle lamp according to Embodiment 1 will be described. Figures 1 to 8 is a diagram showing an example of the vehicle lamp 100 according to Embodiment 1. Figure 1 is a schematic perspective view of the vehicle lamp 100. Figure 2 is a schematic exploded perspective view of the vehicle lamp 100. Figure 3 is a schematic top view of the vehicle lamp 100. Figure 4 is a schematic front view of the vehicle lamp. Figure 5 is a schematic side view of the vehicle lamp 100. Figure 6 is Figure 3 a schematic cross-sectional view taken along line VI-VI in Figure 7 isFigure 3 Schematic sectional view taken along line VII-VII. Figure 8 is Figure 5 Schematic sectional view taken along line VIII-VIII. Figure 9 Schematic top view showing an example of the first light source unit 1 of the vehicle lamp 100. Figure 10 Figure showing an example of the relationship between the spread angle of the light L emitted from the vehicle lamp 100 in the left-right direction and the angle formed between the pair of third reflecting surfaces 40.

[0036] In Figure 1 , 3 , 4, and 5, the multiple straight lines represent the light L1 to light L5 among the light emitted from the vehicle lamp 100 after being emitted from the first light source unit 1 of the vehicle lamp 100. In addition, for the sake of facilitating the understanding of the path through which the light passes, in Figure 1 , 3 , 4, and 5, the multiple straight lines respectively representing the light L1 to light L5 are overlapped and marked on the components.

[0037] The vehicle lamp 100 is a vehicle lamp that can irradiate the light L through the emission surface 520 in the front direction (+Z direction) of the front-rear direction (Z direction) intersecting with the vertical direction (Y direction). The vehicle lamp 100 is a lamp such as a headlamp mounted on a vehicle such as an automobile.

[0038] The vehicle lamp 100 includes a first light source unit 1 and a first reflector 2. The first light source unit 1 can directly or indirectly emit light L1 in a direction along the vertical direction. The first reflector 2 has a first reflecting surface 20 that reflects a part of the light L1 emitted by the first light source unit 1 in the forward direction (+Z direction). In addition, the vehicle lamp 100 further includes a pair of second reflectors 3 disposed above the first reflecting surface 20 in the vertical direction (+Y direction). The pair of second reflectors 3 can reflect the light L2 that travels forward without being reflected by the first reflecting surface 20 among the light L1 emitted by the first light source unit 1 in the left-right direction (X direction) that intersects the front-rear direction and the vertical direction, respectively, to the left direction (+X direction) and the right direction (-X direction). In addition, the vehicle lamp 100 further includes a third reflector 4 disposed corresponding to the pair of second reflecting surfaces 30 on the left and right sides of the first reflecting surface 20 in the left-right direction. The third reflector 4 has a pair of third reflecting surfaces 40 that reflect the light L3 reflected by the pair of second reflecting surfaces 30 in the forward direction. In addition, the vehicle lamp 100 further includes a first lens 5 having an emission surface 520. The light L4 reflected by the first reflecting surface 20 and the light L5 reflected by the pair of third reflecting surfaces 40 are respectively incident on the first lens 5 and emitted forward through the emission surface 520. The first lens 5 may be composed of one lens or multiple lenses. In the present embodiment, the first lens 5 is composed of two lenses, namely a first cylindrical lens 51 and a second cylindrical lens 52. In the vehicle lamp 100, the maximum length Wy of the first lens 5 in the vertical direction is shorter than the maximum length Wx of the first lens 5 in the left-right direction. The vehicle lamp 100 irradiates the light L including the light L4 and the light L5 forward through the emission surface 520.

[0039] For example, in a vehicle lamp, in order to improve the design of the vehicle when the vehicle lamp is disposed on the vehicle, it is sometimes required to shorten the maximum length of the emission surface of the vehicle lamp in the vertical direction. However, if the maximum length of the emission surface of the vehicle lamp in the vertical direction is shortened, the light emitted from the first projection lens will decrease, which may lead to a reduction in the light extraction efficiency of the vehicle lamp.

[0040] In the vehicle lamp 100, the maximum length Wy of the first lens 5 in the vertical direction is shorter than the maximum length Wx of the first lens 5 in the left-right direction. Therefore, in the vehicle lamp 100, compared with the case where the maximum length Wy of the first lens 5 in the vertical direction is longer than the maximum length Wx of the first lens 5 in the left-right direction, the maximum length H of the emission surface 520 in the vertical direction can be shortened.

[0041] On the other hand, if the maximum length Wy of the first lens 5 in the vertical direction is adjusted to be shorter than the maximum length Wx of the first lens 5 in the left - right direction, the light in the light L1 emitted from the first light source unit 1 that cannot enter the first lens 5 in the vertical direction will increase, and the light extraction efficiency of the vehicle lamp 100 may decrease. In the vehicle lamp 100, the pair of second reflecting surfaces 30 of the second reflector 3 reflect the light L2, which is the light in the light L1 emitted from the first light source unit 1 and not reflected by the first reflecting surface 20, to the left and right directions. This light L2 corresponds to the light in the light L1 emitted from the first light source unit 1 that cannot enter the first lens 5 in the vertical direction because the maximum length Wy of the first lens 5 is shorter than the maximum length Wx. The vehicle lamp 100 reflects the light L3, which is the light reflected by the pair of second reflecting surfaces 30 as the light L2, forward by the pair of third reflecting surfaces 40 of the third reflector 4, and the light L5, which is the reflected light of the light L3, enters the first lens 5. The light L4 reflected by the first reflecting surface 20 and the light L5 reflected by the pair of third reflecting surfaces 40 enter the first lens 5 respectively and are emitted forward through the emission surface 520. The vehicle lamp 100 can add the light L5 from the light L2 to the light L4 and emit it from the first lens 5. Thus, in the vehicle lamp 100, it is possible to reduce the decrease in light extraction efficiency caused by the maximum length Wy of the first lens 5 being shorter than the maximum length Wx. In addition, in the vehicle lamp 100, after the pair of second reflecting surfaces 30 reflect the light L2 to the left and right directions, the pair of third reflecting surfaces 40 reflect it forward and make it enter the first lens 5. Therefore, in the vehicle lamp 100, the maximum length Wy of the first lens 5 in the vertical direction does not become longer.

[0042] Therefore, in this embodiment, it is possible to provide a vehicle lamp 100 with a high light extraction efficiency while shortening the maximum length H of the emission surface 520 in the vertical direction.

[0043] In Figures 1 to 8 In the example shown, the vehicle lamp 100 includes a light - shielding member 6 disposed between the first reflecting surface 20 and the first lens 5. The vehicle lamp 100 can irradiate the light L with a low - beam light distribution by shielding a part of the light L4 from the first reflecting surface 20 toward the first lens 5 with the light - shielding member 6. However, the vehicle lamp 100 can also irradiate the light L with a high - beam light distribution. In the case of irradiating the light L with a high - beam light distribution, the vehicle lamp 100 may not be provided with the light - shielding member 6.

[0044] Hereinafter, the detailed structure of the vehicle lamp 100 will be described.

[0045] (First light source unit 1)

[0046] Figure 9The first light source unit 1 shown, for example, is an LED. The first light source unit 1 includes a package 11 and a light emitting unit 12.

[0047] In Figure 9 In the example shown, the package 11 is a resin member that is disposed around a wiring substrate having wirings connected to the light emitting unit 12 in a base material made of a sintered body. The wiring substrate has a structure in which wirings are provided on an aluminum nitride sintered body or a silicon carbide sintered body. Additionally, the wiring substrate may be a wiring substrate in which an insulating layer is formed on a metal surface and then a wiring pattern is provided. The metal is copper, aluminum, etc. The resin member is a resin member having light-shielding properties and preferably has light reflectivity. As the resin member, for example, a thermosetting resin, a thermoplastic resin, etc. can be used. Specifically, as the resin member, a resin containing light-reflective substance particles can be cited.

[0048] The light emitting unit 12 includes a light emitting element and a wavelength conversion component, etc., and emits light L1 of a desired color. The light emitting element is, for example, a semiconductor light emitting element. A semiconductor light emitting element that emits blue light, a semiconductor light emitting element that emits green light, or a semiconductor light emitting element that emits ultraviolet light can use a semiconductor light emitting element containing a nitride semiconductor. As the nitride semiconductor, for example, GaN-based semiconductors such as GaN, InGaN, and AlGaN can be used. For an LED that emits red light, GaAs-based semiconductors such as InAlGaP-based, GaInP-based, GaAs, and AlGaAs can be used. When the vehicle lamp is used as a headlamp, the light emitting unit 12 can emit white light by using a blue semiconductor light emitting element and a yellow wavelength conversion component.

[0049] Figure 9 The first light source unit 1 shown includes a light emitting surface 120 facing upward. In the vehicle lamp 100, when the maximum length of the light emitting surface 120 in the left-right direction is dx and the maximum length of the light emitting surface 120 in the front-rear direction is dz, it is preferably 1.0 ≤ dx / dz ≤ 3.0. By satisfying this condition, in the vehicle lamp 100, for the first lens 5 whose maximum length Wy in the vertical direction is shorter than the maximum length Wx in the left-right direction, light from the first light source unit 1 can be efficiently and easily incident therein. As a result, the vehicle lamp 100 can improve the light extraction efficiency.

[0050] In the first light source unit 1, as an example, the maximum length dx can be set to 1.60 mm, and the maximum length dz can be set to 0.75 mm. As another example, the maximum length d3 from the right end of the light emitting surface 120 to the right end of the package 11 can be set to 0.50 mm, the maximum length d4 from the rear end of the light emitting surface 120 to the rear end of the package 11 can be set to 0.35 mm, and the maximum length d5 from the front end of the light emitting surface 120 to the front end of the package 11 can be set to 2.0 mm.

[0051] In the vehicle lamp 100, the maximum length H of the light emitting surface 520 in the vertical direction is preferably 20.0 mm or less, and the maximum length dz of the light emitting surface 120 in the front-rear direction is preferably 1.2 mm or less. By satisfying this condition, in the vehicle lamp 100, the light from the first light source unit 1 can be efficiently and easily incident on the first lens 5. As a result, the vehicle lamp 100 can improve the light extraction efficiency.

[0052] The first light source unit 1 may have a plurality of light emitting surfaces 120, including a plurality of light emitting portions 12. When the first light source unit 1 includes a plurality of light emitting portions 12, the maximum length dx corresponds to the maximum length from the left outer edge to the right outer edge of the plurality of light emitting portions 12 as a whole. In addition, the maximum length dz corresponds to the maximum length from the front outer edge to the rear outer edge of the plurality of light emitting portions 12 as a whole.

[0053] The first light source unit 1 is not limited to the light emitting surface 120 facing the upper direction, and may also include a light emitting surface 120 facing either the upper direction or the lower direction (-Y direction).

[0054] Figures 1 to 8 The first light source unit 1 shown can directly emit the light L1 in the upper direction. This "directly" means that in the state where the light emitting surface 120 included in the first light source unit 1 faces the upper direction, the light L1 is emitted from the light emitting surface 120 in the upper direction. Among them, the first light source unit 1 can directly emit the light L1 in either the upper direction or the lower direction. In addition, the first light source unit 1 can also indirectly emit the light L1 in the upper direction along the vertical direction. This "indirectly" means that in the state where the orientation of the light emitting surface 120 included in the first light source unit 1 is in a direction other than the upper direction, the light L1 emitted from the light emitting surface 120 is reflected upward by an optical component, so that the light L1 is emitted in the upper direction. Among them, the first light source unit 1 can indirectly emit the light L1 in either the upper direction or the lower direction along the vertical direction. The optical component can be composed of a mirror, a prism, a grating, or a combination thereof, etc.

[0055] (The first reflector 2, the second reflector 3, and the third reflector 4)

[0056] In Figures 1 to 8In the example shown, the first reflector 2, the second reflector 3, and the third reflector 4 can be formed of resin respectively. The first reflector 2, the second reflector 3, and the third reflector 4 are preferably formed by including a metal material such as aluminum or silver at least in the reflecting surface. A dielectric multilayer film can be provided on at least one of the first reflecting surface 20 of the first reflector 2, the pair of second reflecting surfaces 30 of the second reflector 3, and the pair of third reflecting surfaces 40 of the third reflector 4.

[0057] In the vehicle lamp 100, at least one of the first reflecting surface 20 and the second reflecting surface 30 may include an elliptical surface. In Figures 1 to 8 the example shown, the first reflecting surface 20 and the second reflecting surface 30 each include an elliptical surface. Here, the elliptical surface means a surface having two foci and capable of reflecting and focusing the light emitted from one focus onto the other focus.

[0058] By making at least one of the first reflecting surface 20 and the second reflecting surface 30 include an elliptical surface, the light L1 emitted from the first light source unit 1 can be reflected by the elliptical surface and focused. Thereby, the diffusion of the light L1 emitted from the first light source unit 1 can be suppressed, and the light L1 emitted from the first light source unit 1 can be efficiently incident on the first lens 5. In Figures 1 to 8 the example shown, the vehicle lamp 100 can efficiently incident the reflected and focused light from the first reflecting surface 20 on the first lens 5. In addition, the vehicle lamp 100 reflects and focuses the light L2 that has advanced without being reflected by the first reflecting surface 20 in the left and right directions through the pair of second reflecting surfaces 30. The vehicle lamp 100 can efficiently incident the light L3 reflected and focused by the pair of second reflecting surfaces 30 on the first lens 5 by reflecting it on the pair of third reflecting surfaces 40. However, in the vehicle lamp 100, the structure in which at least one of the first reflecting surface 20 and the second reflecting surface 30 includes an elliptical surface is not limited. The first reflecting surface 20, the second reflecting surface 30, and the third reflecting surface 40 can each be a plane, a concave surface, a convex surface, a spherical surface, an aspherical surface, a diffractive surface, or other various shaped surfaces.

[0059] In Figures 1 to 8In the example shown, the first reflector 2 is a concave mirror including a first reflecting surface 20 having an elliptical surface. In the first reflector 2, the upper direction, the lower direction, and the front direction of the concave mirror are open, respectively. The second reflector 3, as a pair of second reflecting surfaces 30 disposed in the upper direction of the first reflecting surface 20, includes a second reflecting surface 30 having an elliptical surface facing the lower left direction and a second reflecting surface 30 having an elliptical surface facing the lower right direction. The pair of second reflecting surfaces 30 reflect the light L2 in the left-right direction. The third reflector 4, as a pair of third reflecting surfaces 40, includes a third reflecting surface 40 having an elliptical surface located in the left direction of the second reflecting surface 30 corresponding to the second reflecting surface 30 facing the lower left direction, and a third reflecting surface 40 having an elliptical surface located in the right direction of the second reflecting surface 30 corresponding to the second reflecting surface 30 facing the lower right direction. The pair of third reflecting surfaces 40 reflect the light L3 from the pair of second reflecting surfaces 30 in the front direction.

[0060] In Figures 1 to 8 the example shown, the second reflector 3 and the third reflector 4 are integrally formed as one component. By integrally forming the second reflector 3 and the third reflector 4, it is not necessary to adjust the relative position and the relative inclination of the pair of third reflecting surfaces 40 corresponding to the pair of second reflecting surfaces 30, and thus the vehicle lamp 100 can be easily manufactured. However, the second reflector 3 and the third reflector 4 may also be configured as separate components from each other. By configuring the second reflector 3 and the third reflector 4 as separate components, the relative position and the relative inclination of the pair of third reflecting surfaces 40 corresponding to the pair of second reflecting surfaces 30 can be adjusted, and thus the second reflector 3 and the third reflector 4 can be easily processed. In addition, the shapes of the second reflector and the third reflector 4 can be appropriately changed according to the specifications of the vehicle lamp 100 and the like.

[0061] In Figure 10 the example shown, the pair of third reflecting surfaces 40 in the third reflector 4 each have a planar shape. The diffusion angle θa of the light L irradiated by the emitting surface 520 in the left-right direction is determined according to the angle θb between the pair of third reflecting surfaces 40. In the vehicle lamp 100, by presetting the angle θb formed between the pair of third reflecting surfaces 40, the diffusion angle θa of the light L irradiated from the vehicle lamp 100 in the left-right direction can be easily determined, and thus the irradiation range of the vehicle lamp 100 in the left-right direction can be easily determined.

[0062] (First lens 5)

[0063] Figures 1 to 8The first lens 5 shown includes a first cylindrical lens 51 having curvature only in the left-right direction and a second cylindrical lens 52 having curvature only in the vertical direction. The light L4 reflected by the first reflecting surface 20 passes through the first cylindrical lens 51 and the second cylindrical lens 52. The light L5 reflected by the third reflecting surface 40 passes through only the second cylindrical lens 52. With this structure, compared to the case where a lens that is a rotationally symmetric body around the lens optical axis is used as the first lens 5, it is easier to form the maximum length of the first lens 5 in the vertical direction to be shorter than the maximum length of the first lens 5 in the left-right direction. In addition, when the light L5 reflected by the third reflecting surface 40 does not pass through the first cylindrical lens 51 but only passes through the second cylindrical lens 52, the number of interfaces of the lens through which the light L5 enters can be reduced. Thereby, in the vehicle lamp 100, the light quantity loss caused by interface reflection can be reduced, and the light extraction efficiency can be improved.

[0064] In Figures 1 to 8 In the example shown, the second cylindrical lens 52 is located at a position more forward than the first cylindrical lens 51. With this structure, for example, by shortening the focal length of the first cylindrical lens 51, it is easier to expand the light L irradiated from the vehicle lamp 100 in the left-right direction. In addition, for example, by increasing the focal length of the second cylindrical lens 52, the light L irradiated from the vehicle lamp 100 can be made narrower in the vertical direction. Thereby, while reducing the light quantity loss, a light distribution that is wider in the left-right direction and narrower in the vertical direction can be achieved.

[0065] The first lens 5 is not limited to the structure including the first cylindrical lens 51 and the second cylindrical lens 52. The first lens 5 can also be a lens having a larger curvature in one direction, preferably a cylindrical lens having curvature only in one direction. In addition, the first lens 5 can be 1 lens, or 3 or more lenses, and can also include a lens that is a rotationally symmetric body around the lens optical axis.

[0066] In Figure 1 ~ to Figure 8 In the example shown, the first cylindrical lens 51 and the second cylindrical lens 52 are plano-convex lenses with the front-facing surface being convex and the rear-facing surface being flat. However, the first lens 5 can include various types of lenses such as biconvex lenses, plano-concave lenses, meniscus lenses, Fresnel lenses, and diffractive lenses.

[0067] When the first lens 5 includes multiple lenses, when viewed from the front direction, the maximum length Wy of the first lens 5 in the vertical direction corresponds to the length from the outer edge located in the uppermost direction to the outer edge located in the lowermost direction among the entire multiple lenses. When viewed from the front direction, the maximum length Wz of the first lens 5 in the left-right direction corresponds to the length from the outer edge located in the leftmost direction to the outer edge located in the rightmost direction among the entire multiple lenses.

[0068] Figures 1 to 8 The first lens 5 shown includes a first cylindrical lens 51 and a second cylindrical lens 52. When viewed from the front direction, the outermost edge in the uppermost direction of the entirety of the first cylindrical lens 51 and the second cylindrical lens 52 is the outermost edge in the upward direction of the first cylindrical lens 51. Additionally, when viewed from the front direction, the outermost edge in the lowermost direction of the entirety of the first cylindrical lens 51 and the second cylindrical lens 52 is the outermost edge in the downward direction of each of the first cylindrical lens 51 and the second cylindrical lens 52. Therefore, the maximum length Wy of the first lens 5 in the vertical direction is the length from the outermost edge in the upward direction of the first cylindrical lens 51 to the outermost edge in the downward direction of each of the first cylindrical lens 51 and the second cylindrical lens 52. Additionally, when viewed from the front direction, the outermost edge in the leftmost direction of the entirety of the first cylindrical lens 51 and the second cylindrical lens 52 is the outermost edge in the leftward direction of the second cylindrical lens 52. Additionally, when viewed from the front direction, the outermost edge in the rightmost direction of the entirety of the first cylindrical lens 51 and the second cylindrical lens 52 is the outermost edge in the rightward direction of the second cylindrical lens 52. Therefore, the maximum length Wx of the first lens 5 in the left-right direction is the length from the outermost edge in the leftward direction of the second cylindrical lens 52 to the outermost edge in the rightward direction of the second cylindrical lens 52.

[0069] In Figures 1 to 8 In the example shown, the shape of the outermost edge of each of the first cylindrical lens 51 and the second cylindrical lens 52 when viewed from the front direction is substantially rectangular. However, as long as the maximum length Wy of the first lens 5 is shorter than the maximum length Wx, the shape of the outermost edge when viewed from the front direction of the lenses included in the first lens 5 can be substantially circular, substantially elliptical, or substantially polygonal, etc.

[0070] The first lens 5 is formed of a glass material or a resin material having light transmissibility. As the resin material, an acrylic resin or a polycarbonate resin, etc. can be used.

[0071] (Light-shielding member 6)

[0072] Figures 1 to 8 The light-shielding member 6 shown is a member for shielding a part of the light reflected by the first reflecting surface 20 of the first reflector 2. "Shielding light" of the light-shielding member 6 means that the transmittance of the irradiated light is less than 1%. The light-shielding member 6 has light absorbency. "Light absorption" of the light-shielding member 6 means that the reflectance of the irradiated light is less than 1%. The light-shielding member 6 is preferably dark in color, and more preferably black. The light-shielding member 6 is made of a metal material, for example, and its surface can be painted black. Or, the light-shielding member 6 is made of a resin material, for example, and its surface can be painted black. Additionally, the light-shielding member 6 can also be made of a light-absorbing material such as carbon black. However, the light-shielding member 6 can also have light reflectivity.

[0073] <An example of the low-beam light distribution of the vehicle lamp 100>

[0074] Figure 11 This is a diagram showing an example of the low beam light distribution emitted from the vehicle lamp 100. Figure 11 It shows the simulation result of the low beam light distribution emitted from the vehicle lamp 100. Additionally, Figure 11 The brightness distribution of the light emitted from the vehicle lamp 100 on the illumination surface that is approximately orthogonal to the front-rear direction is represented by contour lines. In order to avoid glare to oncoming vehicles, the cut-off line is set to rise towards the upper right to cut off the light shining upwards.

[0075] [Embodiment 2]

[0076] Next, the vehicle lamp according to Embodiment 2 will be described. Hereinafter, components or structures having the same name and reference numeral as those already described denote the same or similar components or structures, and the detailed description will be appropriately omitted. This also applies to the subsequent embodiments.

[0077] <Structure of the vehicle lamp according to Embodiment 2>

[0078] Figure 12 This is a schematic side view showing an example of the vehicle lamp 100a according to Embodiment 2. In Figure 12 it, a part of the light L41 emitted through the emission surface 520 of the vehicle lamp 100a is indicated by a dotted arrow, and a part of the light L42 emitted through the emission surface 520 is indicated by a solid arrow.

[0079] As Figure 12 shown, the vehicle lamp 100a includes a light-shielding member 6 disposed between the first reflector 20 and the first lens 5, and a fourth reflector 7 having a fourth reflecting surface 70. The light-shielding member 6 shields light by reflecting a part of the light L4 from the first reflector 20 upwards. The fourth reflecting surface 70 is disposed above the light-shielding member 6 corresponding to the light-shielding member 6 and reflects the light L41 reflected by the light-shielding member 6 forward. The light L41 reflected by the fourth reflecting surface 70 enters the first lens 5 and is emitted forward through the emission surface 520. In the vehicle lamp 100a, these points are mainly different from those of Embodiment 1.

[0080] In Figure 12In the example shown, a part of the light L41 in the light L4 reflected by the first reflecting surface 20 of the first reflector 2 is incident on the fifth reflecting surface 60 of the light shielding member 6. The light shielding member 6 shields light by reflecting the light L41 upward using the fifth reflecting surface 60. On the other hand, the light L42, which is almost all the light other than the light L41 in the light L4, is incident on the first lens 5 without being reflected by the fifth reflecting surface 60. The vehicle lamp 100a can irradiate the light L including the light L41 and the light L42 incident on the first lens 5 forward through the light emitting surface 520. In addition to the light L41 and the light L42, the vehicle lamp 100a can also irradiate the light L including the above-mentioned light L5 forward through the light emitting surface 520.

[0081] Here, for example, a vehicle lamp generates low beam by shielding a part of the light from the light source unit using a light shielding member. In a vehicle lamp, since the irradiated light from the vehicle lamp does not include the light shielded by the light shielding member, the light extraction efficiency may sometimes be reduced.

[0082] In the vehicle lamp 100a of the present embodiment, the light shielding member 6 shields light by reflecting upward a part of the light L4 that is emitted from the first light source unit 1 and reflected by the first reflecting surface 20. And the vehicle lamp 100a reflects the light L41 reflected by the light shielding member 6 forward through the fourth reflecting surface 70 and makes it incident on the first lens 5. Thus, in the vehicle lamp 100a, the light L41 shielded by the light shielding member 6 can be included in the irradiated light from the vehicle lamp 100a. As a result, in the present embodiment, the light extraction efficiency of the vehicle lamp 100a can be improved.

[0083] The direction in which the light shielding member 6 reflects the light L41 is not limited to the upward direction, and may be at least one of the upward direction and the downward direction. The fourth reflecting surface 70 can be arranged corresponding to the light shielding member 6 in at least one of the upward direction and the downward direction of the light shielding member 6. That is, when the light shielding member 6 reflects the light L41 upward, the fourth reflecting surface 70 can be arranged in the upward direction of the light shielding member 6. In addition, when the light shielding member 6 reflects the light L41 downward, the fourth reflecting surface 70 can be arranged in the upward direction of the light shielding member 6. In addition, when the light shielding member 6 reflects the light L41 upward and downward respectively, the fourth reflecting surface 70 can be arranged in the upward direction and the downward direction of the light shielding member 6.

[0084] As the light shielding member 6 included in the vehicle lamp 100a, a prism or a mirror having a fifth reflecting surface 60 can be used. The fifth reflecting surface 60 can be formed of a metal film such as aluminum or silver provided on the prism or the mirror.

[0085] The fourth reflector 7 can be formed by including a metal material such as aluminum or silver. In Figure 12In the example shown, the fourth reflector 7 is a plate-like member provided at the front end of the second reflector 3. The fourth reflector 7 can be integrally formed with at least one of the second reflector 3 and the third reflector 4 as a single component. Alternatively, the fourth reflector 7 can also be configured as separate components from the second reflector 3 and the third reflector 4 respectively.

[0086] [Embodiment 3]

[0087] Next, the vehicle lamp according to Embodiment 3 will be described.

[0088] <Structure of the Vehicle Lamp According to Embodiment 3>

[0089] Refer to Figure 13 and Figure 14 , the vehicle lamp according to Embodiment 3 will be described. Figure 13 and Figure 14 are diagrams showing an example of the vehicle lamp 100b according to Embodiment 3. Figure 13 is a schematic top view of the vehicle lamp 100b. Figure 14 is a schematic front view of the vehicle lamp 100b.

[0090] As Figure 13 and Figure 14 shown, the vehicle lamp 100b has a plurality of first units 10, and each first unit 10 includes a first light source unit 1, a first reflector 2, a second reflector 3, a third reflector 4, and a first lens 5. The plurality of first units 10 are arranged side by side in the left-right direction. In the vehicle lamp 100b, mainly these points are different from those of Embodiment 1.

[0091] In the vehicle lamp 100b, by providing a plurality of first units 10, the amount of irradiation light extracted from the vehicle lamp 100b can be increased compared to the case where only one first unit 10 is provided. In addition, in the vehicle lamp 100b, by arranging a plurality of first units 10 in the left-right direction, the maximum length H of the light emitting surface 520 in the vertical direction of the vehicle lamp 100b can be made substantially equal to the maximum length of the light emitting surfaces in the vertical direction of each of the plurality of first units 10. Thus, in the vehicle lamp 100b, even when a plurality of first units 10 are provided, the maximum length of the light emitting surface 520 in the vertical direction can be shortened.

[0092] In addition, in the vehicle lamp 100b, by individually changing the light emitting states of the first light source units 1 provided in each of the plurality of first units 10, the light distribution of the light L emitted from the vehicle lamp 100b can be changed. Thus, in the vehicle lamp 100b, diversification of the light distribution of the light L emitted from the vehicle lamp 100b can be achieved.

[0093] In addition, Figure 13 and Figure 14 the vehicle lamp 100b shown also includes at least one second unit 80, the second unit including a second light source unit 81 capable of directly or indirectly emitting light in a direction along the vertical direction, a fifth reflector 82 that reflects a part of the light emitted from the second light source unit 81 in the front direction, and a second lens 83. At least one second unit 80 can irradiate light with a light distribution different from that of the light irradiated by the plurality of first units 10. In addition, Figure 13 and Figure 14 the vehicle lamp 100b shown also has a light shielding member 61 disposed between the fifth reflector 82 and the second lens 83.

[0094] In the vehicle lamp 100b, by using at least one second unit 80 and the plurality of first units 10, light with different light distributions can be irradiated, so that the light distribution of the light irradiated from the vehicle lamp 100b can be made into a desired light distribution with high efficiency.

[0095] In Figure 13 and Figure 14 in the example shown, between the two first units 10 disposed in the left direction and the two first units 10 disposed in the right direction, three second units 80 are disposed. The three second units 80 irradiate light on the central region of the irradiation surface that is substantially orthogonal to the front-rear direction. A total of four first units 10 disposed in the left-right direction irradiate light on the region surrounding the central region irradiated by the three second units 80 on the irradiation surface. In the irradiation surface, a light distribution synthesized from the light distributions of the three second units 80 and the four first units 10 can be obtained.

[0096] Figure 15 is a diagram showing an example of the light distribution of the four first units 10 included in the vehicle lamp 100b. Figure 15 Shows the simulation result of the light distribution of the light irradiated by the four first units 10. Figure 16 Is a diagram showing an example of the light distribution of the three second units 80 included in the vehicle lamp 100b. Figure 16 Shows the simulation result of the light distribution of the light irradiated by the three second units 80. Figure 15 and Figure 16 uses contour lines to show the luminance distribution of the light irradiated by the vehicle lamp 100 on the irradiation surface that is substantially orthogonal to the front-rear direction. As Figure 15 and 16 show, the light distributions of both the first unit 10 and the second unit 80 are formed with cut-off lines to obtain a light distribution suitable for low beam.

[0097] As Figure 15As shown in FIGS. 16, the light distribution of the light emitted by the three second units 80 is different from the light distribution of the light emitted by the four first units 10. In Figure 15 , the density of the contour lines near the center is relatively high. From this, it can be seen that the three second units 80 can irradiate light with a high-brightness light distribution in the central region of the irradiation surface. On the other hand, in Figure 16 , the density of the contour lines around the vicinity of the center is higher than that near the center. Therefore, it can be seen that the four first units 10 can irradiate light with a high-brightness light distribution in the peripheral region of the irradiation surface. By synthesizing the light distribution of the light emitted by the three second units 80 and the light distribution of the light emitted by the four first units 10, in the vehicle lamp 100b, for example, light having the same light distribution as the Figure 11 shown low beam can be obtained with high efficiency. The number of the first units 10 and the second units 80 is not limited to the Figure 15 and 16 examples, and can be adjusted appropriately. In addition, regarding the arrangement of the first units 10 and the second units 80, it is not limited to the Figure 15 and 16 examples, and can be arranged appropriately. For example, the second units 80 can also be arranged at the ends in the left and right directions.

[0098] In the embodiment, the vehicle lamp 100a of Embodiment 2 and the vehicle lamp 100b of Embodiment 3 can also be combined. Specifically, each of the plurality of first units 10 in the vehicle lamp 100b can further include a light-shielding member 6 disposed between the first reflecting surface 20 and the first lens 5, and a fourth reflector 7 having a fourth reflecting surface 70. Thus, the effects of Embodiment 2 and the effects of Embodiment 3 can be obtained simultaneously.

[0099] As described above, the preferred embodiments have been described in detail, but are not limited to the above-described embodiments. Without departing from the scope described in the claims, various modifications and substitutions can be made to the above embodiments.

[0100] The ordinal numbers, numbers, etc. used in the description of the embodiments are merely examples for specifically explaining the technology of the present disclosure, and the present disclosure is not limited to the exemplified numbers. In addition, the connection relationship between the structural elements is an example for specifically explaining the technology of the present disclosure, and the connection relationship for realizing the functions of the present disclosure is not limited thereto.

[0101] The light fixture for a vehicle of the present disclosure has a short maximum length of the light-emitting surface in the vertical direction and a high light extraction efficiency, and thus can be particularly used as a vehicle headlight. As an example of the light fixture for a vehicle of the present disclosure, an example of a headlight is given in the embodiment, but it is not limited thereto. For example, the light fixture for a vehicle can be used for various purposes such as communication lights and daytime running lights. In addition, the light fixture for a vehicle of the present disclosure is not limited to vehicle-mounted applications. The light fixture for a vehicle of the present disclosure is not limited to vehicle use. For example, it can also be used as a light fixture for aircraft such as helicopters and drones.

[0102] The method of the present disclosure can be described as follows, for example.

[0103] <Item 1> A vehicle light fixture capable of irradiating light through a light-emitting surface in the forward direction of the front-rear direction intersecting the vertical direction, comprising: a first light source unit capable of directly or indirectly emitting light in a direction along the vertical direction; a first reflector having a first reflecting surface that reflects a part of the light emitted from the first light source unit in the forward direction; a second reflector having a pair of second reflecting surfaces disposed above the first reflecting surface along the vertical direction, the pair of second reflecting surfaces capable of reflecting, in the left-right direction intersecting the front-rear direction and the vertical direction respectively, the light emitted from the first light source unit that has not been reflected by the first reflecting surface to the left direction and the right direction; a third reflector having a pair of third reflecting surfaces disposed on the left and right sides of the first reflecting surface in the left-right direction corresponding to the pair of second reflecting surfaces, the pair of third reflecting surfaces reflecting the light reflected by the pair of second reflecting surfaces to the forward direction; a first lens including the light-emitting surface, the light reflected by the first reflecting surface and the light reflected by the pair of third reflecting surfaces are respectively incident on the first lens and emitted to the forward direction through the light-emitting surface, and the maximum length of the first lens in the vertical direction is shorter than the maximum length of the first lens in the left-right direction.

[0104] <Item 2> The vehicle light fixture according to <Item 1> above, wherein at least one of the first reflecting surface and the second reflecting surface includes an elliptical surface.

[0105] <Item 3> The vehicle light fixture according to <Item 1> or <Item 2> above, wherein the first lens includes a first cylindrical lens having a curvature only in the left-right direction and a second cylindrical lens having a curvature only in the vertical direction, the light reflected by the first reflecting surface respectively transmits through the first cylindrical lens and the second cylindrical lens, and the light reflected by the third reflecting surface only transmits through the second cylindrical lens.

[0106] <Item 4> The vehicle lamp according to <Item 3> above, wherein the second cylindrical lens is located at a position more forward than the first cylindrical lens.

[0107] <Item 5> The vehicle lamp according to any one of <Item 1> to <Item 4> above, wherein the first light source unit includes a light emitting surface facing either the upward direction or the downward direction along the vertical direction. When the maximum length of the light emitting surface in the left - right direction is set as dx and the maximum length of the light emitting surface in the front - rear direction is set as dz, 1.0 ≤ dx / dz ≤ 3.0.

[0108] <Item 6> The vehicle lamp according to <Item 5> above, wherein the maximum length of the light emitting surface in the vertical direction is 20.0 mm or less, and the maximum length of the light emitting surface in the front - rear direction is 1.2 mm or less.

[0109] <Item 7> The vehicle lamp according to any one of <Item 1> to <Item 6> above, wherein there are a plurality of first units, and each first unit includes the first light source unit, the first reflector, the second reflector, the third reflector, and the first lens. The plurality of first units are arranged and configured in the left - right direction.

[0110] <Item 8> The vehicle lamp according to <Item 7> above, wherein by individually changing the light emission states of the first light source units included in the plurality of first units, the light distribution of the light emitted from the vehicle lamp can be changed.

[0111] <Item 9> The vehicle lamp according to any one of <Item 1> to <Item 8> above, wherein the pair of third reflecting surfaces each have a planar shape, and the diffusion angle of the light irradiated through the light emitting surface in the left - right direction is determined according to the angle formed between the pair of third reflecting surfaces.

[0112] <Item 10> The vehicle lamp according to any one of <Item 1> to <Item 9> above, further comprising: a light shielding member disposed between the first reflecting surface and the first lens; and a fourth reflector having a fourth reflecting surface. The light shielding member shields light by reflecting a part of the light from the first reflecting surface in at least one of the upward direction and the downward direction along the vertical direction. The fourth reflecting surface is disposed in at least one of the upward direction and the downward direction of the light shielding member corresponding to the light shielding member, and reflects the light reflected by the light shielding member in the front direction. The light reflected by the fourth reflecting surface enters the first lens and is emitted forward through the light emitting surface.

[0113] <Item 11>The vehicle lamp according to <Item 7> above, further comprising at least one second unit, the second unit including a second light source unit capable of directly or indirectly emitting light in a direction along the vertical direction, a fifth reflecting surface that reflects a part of the light emitted from the second light source unit in the front direction, and a second lens, and the at least one second unit being capable of irradiating light having a light distribution different from that of the light irradiated from the plurality of first units.

[0114] Symbol Explanation

[0115] 1 First light source unit

[0116] 11 Encapsulation body

[0117] 12 Light emitting part

[0118] 120 Light emitting surface

[0119] 2 First reflector

[0120] 20 First reflecting surface

[0121] 3 Second reflector

[0122] 30 Pair of second reflecting surfaces

[0123] 4 Third reflector

[0124] 40 Pair of third reflecting surfaces

[0125] 5 First lens

[0126] 51 First cylindrical lens

[0127] 52 Second cylindrical lens

[0128] 520 Light emitting surface

[0129] 6, 61 Light shielding member

[0130] 60 Fifth reflecting surface

[0131] 7 Fourth reflecting surface

[0132] 70 Fourth reflecting surface

[0133] 80 Second unit

[0134] 81 Second light source unit

[0135] 82 Fifth reflector

[0136] 83 Second lens

[0137] 10 First unit

[0138] dx Maximum length of the light emitting surface in the left - right direction

[0139] The maximum length of the light-emitting surface in the dz front-rear direction

[0140] d3 The maximum length from the right-end of the light-emitting surface to the right-end of the package

[0141] d4 The maximum length from the rear-end of the light-emitting surface to the rear-end of the package

[0142] d5 The maximum length from the front-end of the light-emitting surface to the front-end of the package

[0143] H The length of the light-emitting surface in the vertical direction

[0144] L1, L2, L3, L4, L41, L42, L5 light

[0145] Wx The maximum length of the first lens in the left-right direction

[0146] Wy The maximum length of the first lens in the vertical direction

[0147] θa The diffusion angle of the light irradiated through the light-emitting surface in the left-right direction

[0148] θb The angle formed between a pair of third reflecting surfaces

Claims

1. A vehicle lamp capable of irradiating light through an emitting surface in a front direction in a front-rear direction intersecting a vertical direction, comprising: a first light source unit capable of emitting light directly or indirectly in a direction along the vertical direction; a first reflector having a first reflecting surface, the first reflecting surface reflecting a portion of the light emitted from the first light source portion in the front direction; A second reflector having a pair of second reflecting surfaces arranged in an upper direction of the first reflecting surface along the vertical direction, the pair of second reflecting surfaces being capable of reflecting light emitted from the first light source portion and not reflected by the first reflecting surface in a left-right direction respectively intersecting the front-rear direction and the vertical direction, toward a left direction and a right direction; A third reflector having a pair of third reflecting surfaces arranged in the left and right directions of the first reflecting surface in the left-right direction corresponding to the pair of second reflecting surfaces, the pair of third reflecting surfaces reflecting the light reflected by the pair of second reflecting surfaces in the front direction; and A first lens includes the emission surface, and the light reflected by the first reflection surface and the light reflected by the pair of third reflection surfaces are respectively incident on the first lens and emitted in the forward direction through the emission surface. The maximum length of the first lens in the vertical direction is shorter than the maximum length of the first lens in the left-right direction.

2. The vehicle lamp according to claim 1, wherein: At least one of the first reflecting surface and the second reflecting surface includes an elliptical surface.

3. The vehicle lamp according to claim 1 or 2, wherein: The first lens comprises: a first cylindrical lens having a curvature only in the left-right direction, and a second cylindrical lens having a curvature only in the vertical direction, The light reflected by the first reflecting surface transmits the first cylindrical lens and the second cylindrical lens respectively. The light reflected by the third reflection surface transmits only the second cylindrical lens.

4. The vehicle lamp according to claim 3, wherein: The second cylindrical lens is located closer to the front direction than the first cylindrical lens.

5. The vehicle lamp according to any one of claims 1 to 4, wherein: The first light source unit includes a light emitting surface facing either the upward direction or the downward direction along the vertical direction. When the maximum length of the light-emitting surface in the left-right direction is set to dx, and the maximum length of the light-emitting surface in the front-back direction is set to dz, 1.0≤dx / dz≤3.

0.

6. The vehicle lamp according to claim 5, wherein: The maximum length of the emitting surface in the vertical direction is less than 20.0 mm, The maximum length of the light emitting surface in the front-to-back direction is less than 1.2 mm.

7. The vehicle lamp according to any one of claims 1 to 6, wherein: A plurality of first units are provided, wherein the first unit includes the first light source, the first reflector, the second reflector, the third reflector and the first lens. A plurality of the first units are arranged side by side in the left-right direction.

8. The vehicle lamp according to claim 7, wherein: By individually changing the light emission states of the first light source sections included in each of the plurality of first units, it is possible to change the light distribution of the light emitted from the vehicle lamp.

9. The vehicle lamp according to any one of claims 1 to 8, wherein: The pair of third reflecting surfaces each have a planar shape, The diffusion angle of the light irradiated by the emission surface in the left-right direction is determined according to the angle formed between the pair of third reflection surfaces.

10. The vehicle lamp according to any one of claims 1 to 9, further comprising: a light shielding component, disposed between the first reflecting surface and the first lens; and a fourth reflector having a fourth reflecting surface, The light shielding member shields light by reflecting a portion of the light from the first reflecting surface in at least one of the upward direction and the downward direction along the vertical direction. The fourth reflecting surface is arranged in at least one of the upper direction and the lower direction of the light shielding member corresponding to the light shielding member, and reflects the light reflected by the light shielding member in the front direction. The light reflected by the fourth reflection surface enters the first lens and is emitted toward the front direction through the emission surface.

11. The vehicle lamp according to claim 7, wherein: The vehicle lamp further includes at least one second unit including a second light source portion capable of directly or indirectly emitting light in a direction along the vertical direction, a fifth reflecting surface reflecting a portion of the light emitted from the second light source portion in the front direction, and a second lens. The at least one second unit can emit light having a light distribution different from the light distribution of the light emitted from the plurality of first units.

Images