Headlights for vehicles

Abstract

To provide a vehicle head light which enables improvement of light shining presentation of the head light.SOLUTION: A head light 10 includes: a low beam light source 43 which emits a low beam; a low beam projection lens 45 which is disposed in front of the low beam light source 43 and through which the low beam is transmitted; a clearance lamp light source 53; and a light guide member 61 which is integrated with the low beam projection lens 45 and where at least a part of the light emitted from the clearance lamp light source 53 enters, a part of the entering light is guided in a direction, in which the low beam is radiated, and emitted, and another part of the light is guided to a side and emitted.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Generally, a headlamp for a vehicle is equipped with a clearance lamp that emits light to notify an oncoming vehicle of the presence of the vehicle. Such a headlamp is disclosed, for example, in Patent Document 1, and includes a low beam lamp, a high beam lamp, a clearance lamp, and a housing that contains these three lamps.

[0003] The low beam lamp is disposed above the clearance lamp when viewed from the front of the headlights. The high beam lamp is disposed below the clearance lamp when viewed from the front. The light emitted from the low beam lamp and the high beam lamp passes through an outer lens attached to the housing and illuminates the area in front of the vehicle.

[0004] Light emitted from the clearance lamp light source of the clearance lamp passes through the outer lens to inform oncoming vehicles, etc. of the presence of the vehicle. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2017-79116 A Summary of the Invention [Problem to be solved by the invention]

[0006] In Patent Document 1, the clearance lamp is separate from the low beam lamp, and a shade is disposed between the low beam lamp and the low beam lamp. When the low beam lamp emitting the low beam and the clearance lamp emitting the light are viewed from the front, the light emitted at the joint between the outer periphery of the low beam lamp and the outer periphery of the clearance lamp is noticeable due to the shade, and there is a concern that the boundary between the low beam and the light emitted from the light source for the clearance lamp is noticeable. Therefore, there is a concern that the appearance of the headlight will be poor. For this reason, there is a demand for improving the appearance of the headlight when the emitting headlight is viewed from the front.

[0007] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a vehicle headlamp that can improve the appearance of the headlamp's illumination. [Means for solving the problem]

[0008] In order to solve the above problems, the vehicle headlamp of the present invention is characterized in that it comprises a low beam light source that emits a low beam, a low beam projection lens that is arranged in front of the low beam light source and through which the low beam passes, a clearance lamp light source, and a light guiding member that is integral with the low beam projection lens and into which at least a portion of the light emitted from the clearance lamp light source is incident and which guides at least a portion of the incident light in a direction in which the low beam is irradiated.

[0009] In a typical vehicle headlamp, the low beam light source and the clearance lamp light source emit light simultaneously. In this case, the low beam passes through the low beam projection lens, and at least a part of the light emitted from the clearance lamp light source is guided by the light guide member in the direction of irradiating the low beam. When the headlamp is viewed from the front in this state, since the light guide member is integrated with the low beam projection lens, the light emission at the joint between the light guide member and the low beam projection lens is less noticeable, and the boundary between the low beam and the light emitted from the clearance lamp light source is less noticeable, so that the headlamp can shine in a natural and natural way. Therefore, this headlamp can improve the appearance of the headlamp's illumination.

[0010] In addition, the light guide member is integrated with the low beam projection lens, and therefore, according to this headlamp, the number of parts of the headlamp can be reduced.

[0011] It is also preferable that the low beam light source and the clearance lamp light source are mounted on the same substrate.

[0012] In this case, there is no need to prepare separate boards for the low beam light source and the clearance lamp light source, and therefore, with this headlamp, the number of parts in the headlamp can be reduced.

[0013] In addition, it is preferable that the headlight comprises a high beam light source that emits a high beam, and a high beam projection lens that is arranged in front of the high beam light source and through which the high beam passes, and that the high beam projection lens is integrated with the low beam projection lens.

[0014] According to this headlamp, the number of parts of the headlamp can be reduced.

[0015] In addition, it is preferable that the light-guiding member guides a portion of the light incident on the light-guiding member to the upper edge surface and the lower edge surface of the low beam projection lens, and that the upper edge surface and the lower edge surface of the low beam projection lens are textured surfaces that emit the light to the outside in a diffused state.

[0016] With this headlamp, the light can be diffused by the textured surface of the low beam projection lens and emitted to the outside, so when the headlamp is viewed from the front, it looks as if part of the outer periphery of the headlamp is emitting light from the clearance lamp light source. Therefore, with this headlamp, the appearance of the headlamp can be improved.

[0017] In addition, it is preferable that the upper and lower edge surfaces of the high beam projection lens are textured surfaces that diffuse the light that has traveled along the upper and lower edge surfaces of the low beam projection lens and emit it to the outside.

[0018] With this headlamp, the light can be diffused by the textured surface of the high beam projection lens and emitted to the outside, so when the headlamp is viewed from the front, it appears as if part of the outer periphery of the headlamp is emitting light from the clearance lamp light source. Therefore, with this headlamp, the appearance of the headlamp can be improved.

[0019] It is also preferable that the clearance lamp light source is disposed behind the low beam projection lens, and a portion of the light emitted from the clearance lamp light source passes through the low beam projection lens.

[0020] With this headlamp, the low beam and a portion of the light emitted from the clearance lamp light source can pass through the low beam projection lens. This makes the boundary between the low beam and the light emitted from the clearance lamp light source less noticeable, and the headlamp can shine in a natural way without any sense of incongruity. Therefore, with this headlamp, the appearance of the headlamp can be improved.

[0021] It is also preferable that the light guide member guides a portion of the light emitted from the clearance lamp light source and incident on the light guide member to a side of the headlamp.

[0022] According to this headlamp, the light emitted from the clearance lamp light source can notify oncoming vehicles and the like positioned to the side of the vehicle of the presence of the vehicle.

[0023] It is also preferable that the longitudinal direction of the light guide member is inclined with respect to the longitudinal direction of the low beam projection lens, and that the light guide member extends to a side of the clearance lamp light source.

[0024] According to this headlamp, a part of the light emitted from the clearance lamp light source can be incident on the light guide member from the inner surface of the light guide member. Therefore, according to this headlamp, the light emitted from the clearance lamp light source can be incident on the light guide member without waste, compared to a case in which the light guide member does not extend to the side of the low beam light source.

[0025] Furthermore, it is preferable that the light-guiding member has a main body portion integral with the low beam projection lens, and an extension portion integral with the main body portion and extending toward the clearance lamp light source, the extension portion having an incident surface facing the clearance lamp light source, and at least a portion of the light emitted from the clearance lamp light source being incident on the incident surface.

[0026] In this case, at least a portion of the light emitted from the clearance lamp light source is incident on the extension portion from the incident surface and can be guided in a direction to emit a low beam via the extension portion and the main body portion. Therefore, with this headlamp, the light emitted from the clearance lamp light source can be made to enter the light guide member without waste, compared to a case in which the incident surface is not provided.

[0027] In addition, it is preferable that the longitudinal direction of the light-guiding member is inclined with respect to the longitudinal direction of the low beam projection lens, the light-guiding member has one end that is integrated with the low beam projection lens and the other end that is arranged on the opposite side to the one end, the other end having an incident surface facing the clearance lamp light source, and the light emitted from the clearance lamp light source is incident on the incident surface.

[0028] In this case, the light emitted from the clearance lamp light source can enter the light guide member from the incident surface. Therefore, compared to a case where the incident surface is not provided, the light emitted from the clearance lamp light source can be made to enter the light guide member without waste. Furthermore, the light that enters the light guide member from the incident surface is guided through the entire length of the light guide member from the other end of the light guide member to one end of the light guide member, and can be guided in the direction of emitting the low beam and to the side of the headlamp. Therefore, this headlamp can notify oncoming vehicles and the like located in front of and to the side of the vehicle of the presence of the vehicle.

[0029] Moreover, the incident surface is preferably inclined such that the outer surface of the light guide member extends further rearward than the inner surface of the light guide member.

[0030] In this case, the clearance lamp light source can be disposed on the inside of the vehicle relative to the light guiding member, which allows the size of the headlamp to be smaller than when the clearance lamp light source is disposed on the outside of the vehicle relative to the light guiding member.

[0031] In addition, it is preferable that the longitudinal direction of the light-guiding member is inclined with respect to the longitudinal direction of the low beam projection lens, the light-guiding member has an incident surface arranged on an inner surface of the light-guiding member facing the light source for the clearance lamp, and the light emitted from the light source for the clearance lamp is incident on the incident surface.

[0032] In this case, the light emitted from the clearance lamp light source can be made to enter the light guide member without waste, compared to a case in which the incident surface does not face the clearance lamp light source. Effect of the Invention

[0033] As described above, according to the present invention, a vehicle headlamp that can improve the appearance of the headlamp illumination can be provided. [Brief description of the drawings]

[0034] [Figure 1] FIG. 1 is a diagram illustrating a schematic configuration of a vehicle headlamp according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic perspective view of a high beam projection lens, a low beam projection lens, and a light guide member that are integrated in a headlamp. [Diagram 3] FIG. 3 is a diagram illustrating a schematic configuration of a headlamp according to the second embodiment. [Figure 4] FIG. 4 is a diagram illustrating a schematic configuration of a headlamp according to the third embodiment. [Diagram 5] FIG. 5 is a diagram illustrating a schematic configuration of a headlamp according to the fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0035] Hereinafter, preferred embodiments of a vehicle headlamp according to the present invention will be described in detail with reference to the drawings. The embodiments exemplified below are intended to facilitate understanding of the present invention, and are not intended to limit the present invention. The present invention can be modified and improved without departing from the spirit of the present invention. In addition, the present invention may be achieved by appropriately combining the components in each of the embodiments exemplified below. Note that, for ease of understanding, some parts may be exaggerated in each drawing.

[0036] (First embodiment) FIG. 1 is a diagram showing a schematic configuration of a vehicle headlamp 10 according to the present invention, and is a cross-sectional view of the headlamp 10 in the horizontal direction. FIG. 2 is a schematic perspective view of a high beam projection lens 75, a low beam projection lens 45, and a light guide member 61, which are integrated in the headlamp 10. The headlamp 10 is used, for example, as a headlamp of a motorcycle. The headlamp 10 is provided on each of the left and right directions in front of the motorcycle, and the left and right headlamp 10 are configured to be approximately symmetrical in the left and right directions. The headlamp 10 of this embodiment will be described as a right headlamp when the motorcycle is viewed from the front. The headlamp 10 of this embodiment is a direct-projection type lamp that directly emits a low beam emitted from a low beam light source 43 and a high beam emitted from a high beam light source 73 forward through projection lenses 45, 75.

[0037] 1, headlamp 10 mainly includes a support member 30, a low beam substrate 41, a low beam light source 43, a low beam projection lens 45, a clearance lamp light source 53, a light guide member 61, a high beam substrate 71, a high beam light source 73, and a high beam projection lens 75. Support member 30, low beam substrate 41, low beam light source 43, low beam projection lens 45, clearance lamp light source 53, light guide member 61, high beam substrate 71, high beam light source 73, and high beam projection lens 75 are housed in a housing (not shown) of headlamp 10.

[0038] The support member 30 is fixed in the internal space of the housing. The support member 30 is, for example, a metal plate such as aluminum.

[0039] The support member 30 has a first plate-shaped portion 31, a second plate-shaped portion 33, and a third plate-shaped portion 35 disposed between the first plate-shaped portion 31 and the second plate-shaped portion 33. One end of the third plate-shaped portion 35 is bent in an R shape and is continuous with the first plate-shaped portion 31. The other end of the third plate-shaped portion 35 is bent in an R shape in a direction opposite to the bending of the one end of the third plate-shaped portion 35 and is continuous with the second plate-shaped portion 33. The first plate-shaped portion 31 is disposed rearward of the second plate-shaped portion 33 in the traveling direction of the low beam and the high beam. In addition, when the motorcycle is viewed from the front, the first plate-shaped portion 31 is disposed outside the headlamp 10 in the longitudinal direction of the headlamp 10 relative to the second plate-shaped portion 33.

[0040] The low beam substrate 41 is disposed on the first plate-shaped portion 31. On the low beam substrate 41, a low beam light source 43 is disposed.

[0041] The low beam light source 43 is electrically connected to wiring (not shown) arranged on the low beam board 41. The low beam light source 43 receives power from a power source (not shown) via the low beam board 41 and wiring (not shown) and emits a low beam. For example, the low beam light source 43 is an LED.

[0042] The low beam projection lens 45 is disposed in front of the low beam light source 43 in the traveling direction of the low beam. The low beam projection lens 45 is disposed so as to cover the first plate-shaped portion 31, and is a lens that is horizontally elongated in the longitudinal direction of the headlight 10. In the longitudinal direction of the headlight 10, one end of the low beam projection lens 45 is disposed outside the headlight 10, and the other end of the low beam projection lens 45 is disposed inside the headlight 10. In addition, the low beam projection lens 45 is disposed closer to the first plate-shaped portion 31 in the traveling direction of the low beam as it moves from the inside to the outside of the headlight 10 in the longitudinal direction of the headlight 10. Therefore, the longitudinal direction of the low beam projection lens 45 is inclined with respect to the longitudinal direction of the first plate-shaped portion 31. The low beam projection lens 45 is, for example, an aspheric plano-convex lens. The low beam projection lens 45 has a convex entrance surface that bulges toward the low beam light source 43 and is the surface on which the low beam emitted from the low beam light source 43 enters, and a flat exit surface from which the low beam exits. The low beam enters the low beam projection lens 45 from the entrance surface and then passes through the low beam projection lens 45. The low beam is emitted from the exit surface and illuminates the area in front of the motorcycle. For example, the low beam projection lens 45 is made of transparent resin.

[0043] The high beam board 71 is disposed on the second plate-shaped portion 33. The high beam board 71 is a separate member from the low beam board 41. On the high beam board 71, a high beam light source 73 is disposed.

[0044] The high beam light source 73 is electrically connected to wiring (not shown) arranged on the high beam board 71. The high beam light source 73 receives power from a power source (not shown) via the high beam board 71 and wiring (not shown) and emits a high beam. For example, the high beam light source 73 is an LED.

[0045] The high beam projection lens 75 is disposed in front of the high beam light source 73 in the traveling direction of the high beam. The high beam projection lens 75 is disposed so as to cover the second plate-shaped portion 33, and is a lens that is horizontally long in the longitudinal direction of the headlamp 10. In the longitudinal direction of the headlamp 10, one end of the high beam projection lens 75 is disposed outside the headlamp 10, and the other end of the high beam projection lens 75 is disposed inside the headlamp 10. In addition, the high beam projection lens 75 is disposed closer to the second plate-shaped portion 33 in the traveling direction of the high beam as it moves from the inside to the outside of the headlamp 10 in the longitudinal direction of the headlamp 10. Therefore, the longitudinal direction of the high beam projection lens 75 is inclined with respect to the longitudinal direction of the second plate-shaped portion 33. The high beam projection lens 75 is, for example, an aspheric plano-convex lens. The high beam projection lens 75 has a convex entrance surface that bulges toward the high beam light source 73 and is the surface on which the high beam emitted from the high beam light source 73 enters, and a flat exit surface that is the surface on which the high beam exits. The high beam enters the high beam projection lens 75 from the entrance surface and then passes through the high beam projection lens 75. The high beam is emitted from the exit surface and illuminates the front of the motorcycle. For example, the high beam projection lens 75 is made of the same transparent resin as the low beam projection lens 45. The high beam projection lens 75 is integrated with the other end of the low beam projection lens 45.

[0046] The clearance lamp light source 53 is disposed on the same board as the low beam light source 43, that is, on the low beam board 41. The clearance lamp light source 53 is disposed next to the low beam light source 43 and is disposed on the outer side of the headlamp 10 than the low beam light source 43 in the longitudinal direction of the headlamp 10. For example, the clearance lamp light source 53 is disposed at the end of the low beam board 41. The clearance lamp light source 53 is disposed behind the low beam projection lens 45 and disposed so as to be covered by the low beam projection lens 45. The clearance lamp light source 53 is electrically connected to wiring (not shown) of the low beam board 41. The clearance lamp light source 53 is supplied with power from a power source (not shown) via the low beam board 41 and wiring (not shown) to emit light. In a motorcycle, this light is emitted at the same timing as the low beam, and is always emitted when the low beam is emitted. The brightness of this light is darker than that of the low beam. Moreover, at least a part of this light is light that enters the light-guiding member 61 from the inner surface of the light-guiding member 61. In this embodiment, it is described that a part of the light enters the light-guiding member 61 from the inner surface of the light-guiding member 61, and the remaining part of the light enters the low-beam projection lens 45 from the above-mentioned entrance surface of the low-beam projection lens 45.

[0047] The light guide member 61 is integrated with one end of the low beam projection lens 45. The longitudinal direction of the light guide member 61 is inclined with respect to the longitudinal direction of the low beam projection lens 45. The light guide member 61 extends to the side of the clearance lamp light source 53, and further extends rearward beyond the clearance lamp light source 53. For example, the light guide member 61 is made of the same transparent resin as the low beam projection lens 45.

[0048] 2, the light guiding member 61 has a plurality of protrusions 61a arranged on an outer surface of the light guiding member 61. The protrusions 61a are arranged along the longitudinal direction of the light guiding member 61. The protrusions 61a are arranged at equal intervals from each other in a direction perpendicular to the longitudinal direction of the light guiding member 61.

[0049] In this embodiment, as described above, one end of the low beam projection lens 45 is integrated with the light guide member 61, and the other end of the low beam projection lens 45 is integrated with the high beam projection lens 75. Therefore, in this embodiment, one horizontally long lens is a lens 81 common to the low beam light source 43, the clearance lamp light source 53, and the high beam light source 73. A part of this horizontally long common lens 81 is the low beam projection lens 45, another part of the common lens 81 adjacent to the part of the horizontally long common lens 81 is the light guide member 61, and the remaining part of the common lens 81 adjacent to the part of the horizontally long common lens 81 is the high beam projection lens 75. In other words, the light guide member 61 is combined with a monofocus lens for low beam and high beam.

[0050] In the common lens 81, the low beam projection lens 45 is a lens sandwiched between the high beam projection lens 75 and the light-guiding member 61, and the light-guiding member 61 is integrated with the low beam projection lens 45 at a position opposite the high beam projection lens 75 in the longitudinal direction of the common lens 81.

[0051] In addition, in the common lens 81, the planar upper edge surface of the low beam projection lens 45 is continuous with the planar upper edge surface of the high beam projection lens 75, and the planar lower edge surface of the low beam projection lens 45 is continuous with the planar lower edge surface of the high beam projection lens 75. The upper and lower edge surfaces of the low beam projection lens 45 and the high beam projection lens 75 respectively form textured surfaces 83 that are exposed to the outside when the headlamp 10 is mounted on a motorcycle. The textured surfaces 83 are, for example, minute protrusions.

[0052] In this embodiment, the light guiding member 61 guides at least a portion of the light emitted from the clearance lamp light source 53 and entering the light guiding member 61 from the inner surface of the light guiding member 61 in a direction in which a low beam is emitted. The direction in which the low beam is emitted is, for example, the front of the motorcycle. In this embodiment, the light guiding member 61 will be described as guiding a portion of the light to the front of the motorcycle, guiding another portion of the light to the side of the motorcycle, and guiding another portion of the light to the grained surface 83 of the low beam projection lens 45.

[0053] When the light-guiding member 61 guides light forward and to the sides of the motorcycle, the light traveling inside the light-guiding member 61 is diffusely reflected by the convex portion 61a and travels along the longitudinal direction of the light-guiding member 61. The light is emitted forward of the motorcycle from the end of the light-guiding member 61. The light emitted forward of the motorcycle is intended to inform oncoming vehicles and the like positioned in front of the motorcycle of the presence of the host vehicle. The light is also emitted to the sides of the motorcycle from the outer surface of the light-guiding member 61 and the convex portion 61a. In this case, a portion of the light is emitted in a diffused state by the convex portion 61a. The light emitted to the sides of the motorcycle is intended to inform oncoming vehicles and the like positioned to the sides of the motorcycle of the presence of the host vehicle.

[0054] Furthermore, when the light guide member 61 guides light to the textured surface 83 of the low beam projection lens 45, the light is diffused by the textured surface 83 of the low beam projection lens 45 and emitted to the outside. Furthermore, the light travels to the textured surface 83 of the high beam projection lens 75 and is diffused by the textured surface 83 of the high beam projection lens 75 and emitted to the outside. The diffused light emitted to the outside is light that notifies an oncoming vehicle or the like located in front of the vehicle of the presence of the vehicle. When the headlamp 10 emitting diffused light is viewed from the front, a part of the outer periphery of the headlamp 10 appears to emit light from the clearance lamp light source 53.

[0055] The headlamp 10 has an extension member (not shown) disposed between the support member 30 and the common lens 81. The extension member is a member for concealing the internal structure of the housing (not shown) of the headlamp 10 so that it cannot be seen from the outside. The extension member is, for example, an opaque resin.

[0056] The extension member has two openings. The extension member is fixed to the housing (not shown) of the headlamp 10 so that the low beam board 41 is disposed in one opening and the high beam board 71 is disposed in the other opening.

[0057] The extension member has a wall portion (not shown) that blocks the high beam emitted from the high beam light source 73 and attempting to proceed directly to the low beam projection lens 45. This wall portion also blocks the low beam emitted from the low beam light source 43 and attempting to proceed directly to the high beam projection lens 75, and the light emitted from the clearance lamp light source 53 and attempting to proceed directly to the high beam projection lens 75. In this way, in this embodiment, the wall portion blocks the light that attempts to proceed to another projection lens adjacent to the projection lens to which it should originally proceed.

[0058] Next, the emission of light from the headlamp 10 will be described.

[0059] An unillustrated power source supplies power to the low beam light source 43 and the clearance lamp light source 53 via the low beam board 41 and wiring (unillustrated). The low beam light source 43 emits a low beam, and the clearance lamp light source 53 emits light to notify oncoming vehicles of the presence of the vehicle.

[0060] The low beam is incident on the low beam projection lens 45 from the entrance surface of the low beam projection lens 45 and passes through the low beam projection lens 45. In this case, the divergence angle of the low beam is adjusted by the low beam projection lens 45. The low beam with the adjusted divergence angle is emitted from the exit surface of the low beam projection lens 45 toward the front of the motorcycle, illuminating the area in front of the motorcycle.

[0061] A part of the light emitted from the clearance lamp light source 53 enters the light guide member 61 from the inner surface of the light guide member 61 .

[0062] A part of the light incident on the light-guiding member 61 travels forward inside the light-guiding member 61 and is emitted toward the front of the motorcycle from an end of the light-guiding member 61 integrated with one end of the low beam projection lens 45. The emitted light notifies an oncoming vehicle or the like located in front of the vehicle of the presence of the vehicle.

[0063] Another part of the light incident on the light-guiding member 61 travels backward inside the light-guiding member 61. In this case, the light is diffusely reflected at the convex portion 61a and travels backward in the longitudinal direction of the light-guiding member 61. In the process of traveling backward, this light is emitted from the outer surface of the light-guiding member 61 and the convex portion 61a towards the side of the motorcycle. The emitted light notifies an oncoming vehicle or the like positioned to the side of the vehicle of the presence of the vehicle.

[0064] Another part of the light incident on the light guide member 61 travels from the light guide member 61 to the textured surface 83 of the low beam projection lens 45. In this case, the light is diffused by the textured surface 83 of the low beam projection lens 45 and emitted to the outside. The light that has traveled to the textured surface 83 of the low beam projection lens 45 travels from the textured surface 83 of the low beam projection lens 45 to the textured surface 83 of the high beam projection lens 75, and is diffused by the textured surface 83 of the high beam projection lens 75 and emitted to the outside. The light that is diffused and emitted to the outside from the textured surfaces 83 of the projection lenses 45, 75 informs an oncoming vehicle or the like located in front of the vehicle of the presence of the vehicle.

[0065] Another part of the light emitted from the clearance lamp light source 53 is directly incident on the low beam projection lens 45 from the entrance surface of the low beam projection lens 45 and passes through the low beam projection lens 45. In this case, the divergence angle of the light is adjusted by the low beam projection lens 45. The light with the adjusted divergence angle is emitted from the exit surface of the low beam projection lens 45 toward the front of the motorcycle. Then, the light notifies oncoming vehicles and the like located in front of the vehicle of the presence of the vehicle.

[0066] Next, when the emission of the low beam is switched to the emission of the high beam, the power source (not shown) supplies power to the high beam light source 73 via the high beam board 71 and the wiring (not shown) while continuing to supply power to the low beam light source 43 and the clearance lamp light source 53. As a result, the high beam light source 73 emits a high beam while the low beam light source 43 and the clearance lamp light source 53 are turned on. Note that, when the emission of the low beam is switched to the emission of the high beam, the power source (not shown) may supply power to at least one of the low beam light source 43 and the clearance lamp light source 53, and supply power to the high beam light source 73. In this case, the high beam light source 73 emits a high beam while at least one of the low beam light source 43 and the clearance lamp light source 53 is turned on.

[0067] The high beam is incident on the high beam projection lens 75 from the entrance surface of the high beam projection lens 75 and is transmitted through the high beam projection lens 75. In this case, the divergence angle of the high beam is adjusted by the high beam projection lens 75. The high beam with the adjusted divergence angle is emitted from the exit surface of the high beam projection lens 75 towards the front of the motorcycle, illuminating the area in front of the motorcycle.

[0068] As described above, the motorcycle headlamp 10 of this embodiment comprises the low beam light source 43 that emits a low beam, the low beam projection lens 45 that is arranged in front of the low beam light source 43 and through which the low beam passes, the clearance lamp light source 53, and the light-guiding member 61 that is integral with the low beam projection lens 45, into which at least a portion of the light emitted from the clearance lamp light source 53 is incident and which guides at least a portion of the incident light in the direction of irradiating the low beam.

[0069] In a typical motorcycle headlamp 10, the low beam light source 43 and the clearance lamp light source 53 emit light simultaneously. In this case, in this embodiment, the low beam passes through the low beam projection lens 45, and at least a part of the light emitted from the clearance lamp light source 53 is guided by the light guide member 61 in the direction of irradiating the low beam. When the headlamp 10 is viewed from the front in this state, since the light guide member 61 is integrated with the low beam projection lens 45, the light emission at the joint between the light guide member 61 and the low beam projection lens 45 becomes less noticeable, and the boundary between the low beam and the light emitted from the clearance lamp light source 53 becomes less noticeable, so that the headlamp 10 can shine in a natural and natural way. Therefore, according to this headlamp 10, the appearance of the way the headlamp 10 shines can be improved.

[0070] Moreover, the light guide member 61 is integral with the low beam projection lens 45. Therefore, according to this headlamp 10, the number of parts of the headlamp 10 can be reduced.

[0071] Further, the low beam light source 43 and the clearance lamp light source 53 are mounted on the same board.

[0072] In this case, there is no need to prepare a separate board for each of the low beam light source 43 and the clearance lamp light source 53. Therefore, according to this headlamp 10, the number of parts of the headlamp 10 can be reduced.

[0073] The headlamp 10 also includes a high beam light source 73 that emits a high beam, and a high beam projection lens 75 that is arranged in front of the high beam light source 73 and through which the high beam passes, and the high beam projection lens 75 is integral with the low beam projection lens 45.

[0074] According to this headlamp 10, the number of parts of the headlamp 10 can be reduced.

[0075] In addition, the light-guiding member 61 guides a portion of the light incident on the light-guiding member 61 to the upper and lower edge surfaces of the low beam projection lens 45, and the upper and lower edge surfaces of the low beam projection lens 45 are embossed surfaces 83 that emit the light to the outside in a diffused state.

[0076] According to this headlamp 10, the light can be emitted to the outside in a diffused state by the textured surface 83 of the low beam projection lens 45, so when the headlamp 10 is viewed from the front, it appears as if a part of the outer periphery of the headlamp 10 is emitting light from the clearance lamp light source 53. Therefore, according to this headlamp 10, the appearance of the way the headlamp 10 shines can be improved.

[0077] In addition, the upper and lower edge surfaces of the high beam projection lens 75 are textured surfaces 83 that diffuse the light that has traveled along the upper and lower edge surfaces of the low beam projection lens 45 and emit it to the outside.

[0078] According to this headlamp 10, the light can be emitted to the outside in a diffused state by the textured surface 83 of the high beam projection lens 75, so when the headlamp 10 is viewed from the front, it appears as if a part of the outer periphery of the headlamp 10 is emitting light from the clearance lamp light source 53. Therefore, according to this headlamp 10, the appearance of the way the headlamp 10 shines can be improved.

[0079] Further, the clearance lamp light source 53 is disposed behind the low beam projection lens 45 , and a portion of the light emitted from the clearance lamp light source 53 passes through the low beam projection lens 45 .

[0080] With this headlamp 10, the low beam and a portion of the light emitted from the clearance lamp light source 53 can pass through the low beam projection lens 45. This makes the boundary between the low beam and the light emitted from the clearance lamp light source 53 less noticeable, and the way the headlamp 10 shines can have a natural, unnatural appearance. Therefore, with this headlamp 10, the appearance of the way the headlamp 10 shines can be improved.

[0081] In this case, a portion of the light emitted from the clearance lamp light source 53 and passing through the low beam projection lens 45 may overlap with and complement a portion of the low beam passing through the low beam projection lens 45. This makes the boundary between the low beam and the light emitted from the clearance lamp light source 53 less noticeable, and the way the headlamp 10 shines can have a natural, unnatural appearance. Therefore, with this headlamp 10, the appearance of the way the headlamp 10 shines can be improved.

[0082] Further, the light guide member 61 guides a part of the light emitted from the clearance lamp light source 53 and incident on the light guide member 61 to the side of the headlamp 10 .

[0083] According to this headlamp 10, the light emitted from the clearance lamp light source 53 can inform an oncoming vehicle or the like positioned to the side of the vehicle of the presence of the vehicle.

[0084] Further, the longitudinal direction of the light guide member 61 is inclined with respect to the longitudinal direction of the low beam projection lens 45, and the light guide member 61 extends to the side of the light source 53 for the clearance lamp.

[0085] According to this headlamp 10, a part of the light emitted from the clearance lamp light source 53 can enter the light guide member 61 from the inner surface of the light guide member 61. Therefore, according to this headlamp 10, the light emitted from the clearance lamp light source 53 can be made to enter the light guide member 61 without waste, compared to a case in which the light guide member 61 does not extend to the side of the low beam light source 43.

[0086] Moreover, the light guiding member 61 is further extended to the rear of the clearance lamp light source 53. In this case, compared to a case in which the light guiding member 61 does not extend further to the rear of the clearance lamp light source 53, the light emitted from the clearance lamp light source 53 can be guided to a wider range to the side of the vehicle.

[0087] Second embodiment Next, a second embodiment of the present invention will be described in detail with reference to Fig. 3. Note that components that are the same as or equivalent to those in the first embodiment will be given the same reference numerals and will not be described again unless otherwise specified.

[0088] 3 is a diagram showing a schematic configuration of a headlamp 10 according to the present embodiment, and is a horizontal cross-sectional view of the headlamp 10. In this embodiment, the configuration of a light guide member 61 differs from that of the first embodiment.

[0089] The light guide member 61 has a main body 63 integral with the low beam projection lens 45, and an extension 65 integral with the main body 63 and extending toward the clearance lamp light source 53. The extension 65 has an incident surface 67 facing the clearance lamp light source 53. At least a part of the light emitted from the clearance lamp light source 53 is incident on the incident surface 67.

[0090] In this embodiment, at least a part of the light emitted from the clearance lamp light source 53 enters the extension portion 65 from the incident surface 67, and can be guided in a direction for emitting a low beam via the extension portion 65 and the main body portion 63. According to this headlamp 10, the light emitted from the clearance lamp light source 53 can be made to enter the light-guiding member 61 without waste, compared to a case in which the incident surface 67 is not provided.

[0091] Third embodiment Next, a third embodiment of the present invention will be described in detail with reference to Fig. 4. Note that components that are the same as or equivalent to those in the first and second embodiments will be given the same reference numerals and will not be described again unless otherwise specified.

[0092] 4 is a diagram illustrating a schematic configuration of a headlamp 10 according to the present embodiment, and is a horizontal cross-sectional view of the headlamp 10. In this embodiment, the configuration of a light-guiding member 61 and the position of a clearance lamp light source 53 are different from those in the first embodiment.

[0093] The light guide member 61 of this embodiment has one end 61b that is integrated with the low beam projection lens 45, and the other end 61c that is disposed on the opposite side to the one end 61b. The other end 61c has an incident surface 67 that faces the clearance lamp light source 53. Light emitted from the clearance lamp light source 53 is incident on this incident surface 67. The incident surface 67 is inclined so that the outer surface of the light guide member 61 extends rearward beyond the inner surface of the light guide member 61.

[0094] The clearance lamp light source 53 of this embodiment is disposed on the clearance lamp board 51. The clearance lamp board 51 is a board separate from the low beam board 41, and is disposed rearward of the low beam board 41. The clearance lamp light source 53 is electrically connected to wiring (not shown) of the clearance lamp board 51. The clearance lamp light source 53 is supplied with power from a power source (not shown) via the clearance lamp board 51 and wiring (not shown) and emits light. The clearance lamp board 51 is disposed on the fourth plate-shaped portion 37 of the support member 30. The fourth plate-shaped portion 37 is bent and continuous with the first plate-shaped portion 31.

[0095] In this embodiment, the light emitted from the clearance lamp light source 53 can enter the light guide member 61 from the incident surface 67. Therefore, compared to a case where the incident surface 67 is not provided, the light emitted from the clearance lamp light source 53 can be made to enter the light guide member 61 without waste. In addition, the light that enters the light guide member 61 from the incident surface 67 is guided through the light guide member 61 over its entire length from the other end 61c of the light guide member 61 to one end 61b of the light guide member 61, and can be guided in the direction of emitting the low beam and to the side of the headlamp 10. Therefore, according to this headlamp 10, it is possible to inform oncoming vehicles and the like located in front of and to the side of the vehicle of the presence of the vehicle.

[0096] Furthermore, the incident surface 67 is inclined. In this case, the clearance lamp light source 53 can be disposed on the inside of the motorcycle with respect to the light guiding member 61. Therefore, the size of the headlamp 10 can be made smaller than when the clearance lamp light source 53 is disposed on the outside of the motorcycle with respect to the light guiding member 61.

[0097] Furthermore, in this embodiment, the clearance lamp light source 53 is disposed on a clearance lamp board 51 different from the low beam board 41. Therefore, in this embodiment, it is possible to improve the degree of freedom in design.

[0098] (Fourth embodiment) Next, a fourth embodiment of the present invention will be described in detail with reference to Fig. 5. Note that components that are the same as or equivalent to those in the third embodiment will be given the same reference numerals and will not be described again unless otherwise specified.

[0099] 6 is a diagram showing a schematic configuration of a headlamp 10 according to the present embodiment, and is a horizontal cross-sectional view of the headlamp 10. In this embodiment, the configuration of a light guide member 61 differs from that of the third embodiment.

[0100] The light guiding member 61 has an incident surface 67 facing the clearance lamp light source 53. The incident surface 67 is disposed on an inner surface of the light guiding member 61. The incident surface 67 is inclined with respect to the longitudinal direction of the light guiding member 61 so that the other end 61c of the light guiding member 61 is bifurcated into two. Light emitted from the clearance lamp light source 53 is incident on the incident surface 67.

[0101] In this case, the light emitted from the clearance lamp light source 53 can be made to enter the light guide member 61 without waste, compared to a case in which the incident surface 67 does not face the clearance lamp light source 53.

[0102] Although the present invention has been described above using the above-mentioned embodiments as examples, the present invention is not limited to these and can be modified as appropriate.

[0103] For example, the low beam light source 43, the clearance lamp light source 53, and the high beam light source 73 may be LDs.

[0104] The light guide member 61 may guide a part of the light emitted from the clearance lamp light source 53 and incident on the light guide member 61 to the low beam projection lens 45. The light emitted from the clearance lamp light source 53 may be incident on the light guide member 61, proceed from the light guide member 61 to the high beam projection lens 75 via the low beam projection lens 45, and emitted from the high beam projection lens 75. The low beam may be incident on the low beam projection lens 45, proceed from the low beam projection lens 45 to the high beam projection lens 75, and emitted from the high beam projection lens 75. The high beam may be incident on the high beam projection lens 75, proceed from the high beam projection lens 75 to the low beam projection lens 45, and emitted from the high beam projection lens 75.

[0105] Furthermore, when light emitted from the clearance lamp light source 53 is emitted to the outside in a diffused state by the textured surfaces 83 of the low beam projection lens 45 and the high beam projection lens 75, the light may travel as far as the side edge surface of the other end of the high beam projection lens 75. When the headlamp 10 is viewed from the front in this state, the entire outer peripheral surface of the headlamp 10 appears to emit light from the clearance lamp light source 53. The side edge surface of the other end of the high beam projection lens 75 may be the textured surface 83.

[0106] For example, the clearance lamp light source 53 and the incident surface 67 of the light guide member 61 in each of the third and fourth embodiments may be combined with other embodiments.

[0107] The low beam projection lens 45, the light guiding member 61, the high beam projection lens 75, and the textured surface 83 may be covered by a cover glass. Alternatively, the low beam projection lens 45, the light guiding member 61, the high beam projection lens 75, and the textured surface 83 may be directly exposed to the outside without a cover glass being provided. In this case, the exposed surfaces of the low beam projection lens 45, the light guiding member 61, the high beam projection lens 75, and the textured surface 83 may be coated with a waterproof coating.

[0108] The headlamp 10 may be, for example, a drawing lamp that displays characters, figures, etc. on the exterior of the vehicle. The headlamp 10 may be used not only in motorcycles, but also in three-wheeled vehicles, four-wheeled vehicles, etc. [Industrial Applicability]

[0109] According to the present invention, a vehicle headlamp 10 capable of improving the appearance of the light emitted by the headlamp 10 is provided, and can be used in the field of vehicle headlamps. [Explanation of symbols]

[0110] 10 Headlight 41....Low beam circuit board 43 Low beam light source 45···Low beam projection lens 53···Light source for clearance lamp 61... Light guiding member 71 High beam circuit board 73 High beam light source 75···High beam projection lens 81... Common Lens

Claims

1. A low beam light source that emits a low beam; a low beam projection lens disposed in front of the low beam light source and through which the low beam passes; A light source for a clearance lamp; a light guide member which is integral with the low beam projection lens, and into which at least a portion of the light emitted from the clearance lamp light source is incident, and which guides and outputs a portion of the incident light in a direction in which the low beam is irradiated, and guides and outputs another portion of the light laterally; Equipped with At the exit surface of the low beam projection lens, a portion of the light emitted from the clearance lamp light source passes through the low beam projection lens, and the light overlaps with a portion of the low beam passing through the low beam projection lens; a longitudinal direction of the light guide member is inclined with respect to a longitudinal direction of the low beam projection lens, and the light guide member has a portion extending to a side of the clearance lamp light source, A part of the light emitted laterally from the light guide member is emitted laterally from the portion. A headlamp for a vehicle.

2. A low beam light source that emits a low beam; a low beam projection lens disposed in front of the low beam light source and through which the low beam passes; A light source for a clearance lamp; a light guide member which is integral with the low beam projection lens, and into which at least a portion of the light emitted from the clearance lamp light source is incident, and which guides and outputs a portion of the incident light in a direction in which the low beam is irradiated, and guides and outputs another portion of the light laterally; Equipped with the clearance lamp light source is disposed behind the low beam projection lens, A part of the light emitted from the clearance lamp light source passes through the low beam projection lens, a longitudinal direction of the light guide member is inclined with respect to a longitudinal direction of the low beam projection lens, and the light guide member has a portion extending to a side of the clearance lamp light source, A part of the light emitted laterally from the light guide member is emitted laterally from the portion. A headlamp for a vehicle.

3. The light emitted from the clearance lamp light source in the direction in which the low beam is irradiated and the light emitted toward the side are emitted from different surfaces of the light guide member.

3. A vehicle headlamp according to claim 1 or 2.

4. The low beam light source and the clearance lamp light source are mounted on the same substrate.

4. A headlamp according to claim 1, wherein the first and second electrodes are arranged in a first direction.

5. A high beam light source that emits a high beam; a high beam projection lens disposed in front of the high beam light source and through which the high beam passes; Equipped with The high beam projection lens is integral with the low beam projection lens.

5. A headlamp according to claim 1.

6. the light guide member guides a portion of the light incident on the light guide member to an upper edge surface and a lower edge surface of the low beam projection lens, The upper edge surface and the lower edge surface of the low beam projection lens are textured surfaces that emit the light to the outside in a diffused state.

6. The headlamp according to claim 5.

7. The upper and lower edge surfaces of the high beam projection lens are textured surfaces that diffuse the light traveling along the upper and lower edge surfaces of the low beam projection lens and emit the light to the outside.

7. The headlamp according to claim 6.

8. The light guiding member is a main body portion integral with the low beam projection lens; an extension portion that is integral with the main body portion and extends toward the clearance lamp light source; having The extension portion has an incident surface facing the clearance lamp light source, At least a part of the light emitted from the clearance lamp light source is incident on the incident surface.

8. A headlamp according to claim 1, wherein the first and second electrodes are arranged in a first direction.

9. a longitudinal direction of the light guide member is inclined with respect to a longitudinal direction of the low beam projection lens, The light guiding member is One end integral with the low beam projection lens; Another end disposed on the opposite side to the one end; having the other end has an incident surface facing the clearance lamp light source, The light emitted from the clearance lamp light source is incident on the incident surface.

9. A headlamp according to claim 1.

10. The incident surface is inclined such that the outer surface of the light guide member extends rearward beyond the inner surface of the light guide member.

10. The headlamp according to claim 9.

11. a longitudinal direction of the light guide member is inclined with respect to a longitudinal direction of the low beam projection lens, the light guide member has an incident surface disposed on an inner surface of the light guide member facing the clearance lamp light source, The light emitted from the clearance lamp light source is incident on the incident surface.

11. A headlamp according to any one of claims 1 to 10.

12. The light guiding member further has a portion extending to the rear of the clearance lamp light source, A part of the light emitted laterally from the light guide member is emitted laterally from the portion extending to the rear of the clearance lamp light source.

8. A headlamp according to claim 1, wherein the first and second electrodes are arranged in a first direction.

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