Vehicle lamp

Abstract

The present invention provides a vehicle lamp that can expand the diffusion angle of high beam outward in the vehicle width direction. The vehicle lamp (1) includes: a light source part (5); a light source part (4) arranged in the vehicle width direction with the light source part (5); a lens (100) integrally formed with a projection lens (102) that projects a high beam pattern onto the front of the vehicle through light emitted from the light source part (5), and a projection lens (101) that projects a low beam pattern onto the front of the vehicle through light emitted from the light source part (4); and a partition part (24) that blocks light emitted from the light source part (5) and traveling towards the projection lens (101). The lens (100) includes a connecting part (103) formed between the projection lens (102) and the projection lens (101) and connecting the projection lens (102) and the projection lens (101). The light-blocking part (24) allows at least a portion of the light emitted from the light source part (5) and traveling towards the connecting part (103) to pass through.

Description

Technical Field

[0001] This invention relates to a vehicle lamp. Background Technology

[0002] A vehicle lamp is known, comprising: a composite projection lens integrally formed from a first projection lens portion and a second projection lens portion; a first light source emitting first light through the first projection lens portion; and a second light source emitting second light through the second projection lens portion (for example, see Patent Document 1). In the vehicle lamp described in Patent Document 1, a partition portion is provided to prevent the first light emitted from the first light source from entering the second projection lens portion and the second light emitted from the second light source from entering the first projection lens portion, for the purpose of preventing the first light emitted from the first light source from entering the second projection lens portion and the second light emitted from the second light source from entering the first projection lens portion. This partition separates the first space between the first light source and the first projection lens portion and the second space between the second light source and the second projection lens portion.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-161708 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In vehicle lighting fixtures that integrate a low-beam projection lens and a high-beam projection lens, a light source for emitting low-beam light, and a light source for emitting high-beam light, there is a need to increase the diffusion angle of the high beam outward in the vehicle width direction. For example, it is necessary to increase the diffusion angle of the high beam to the right of the headlights of vehicles traveling on the left, and to increase the diffusion angle of the high beam to the left of the headlights of vehicles traveling on the left.

[0008] In contrast, the vehicle lamp described in Patent Document 1 completely blocks the light emitted from the high beam source and traveling towards the projection lens section for low beam by using a partition, thus failing to meet the above requirements.

[0009] In view of the above, the present invention aims to provide a vehicle lamp that can expand the diffusion angle of high beams outward in the vehicle width direction.

[0010] Solution for solving the problem

[0011] The vehicle lighting fixture of the present invention comprises: a first light source; a second light source arranged in a direction of vehicle width with the first light source; a lens integrally formed with a first projection lens and a second projection lens, the first projection lens projecting a high beam light distribution pattern forward of the vehicle using light emitted from the first light source, and the second projection lens projecting a low beam light distribution pattern forward of the vehicle using light emitted from the second light source; and a light-shielding portion that blocks light emitted from the first light source and traveling toward the second projection lens, the lens having a connecting portion formed between the first projection lens and the second projection lens, connecting the first projection lens and the second projection lens, and the light-shielding portion allowing at least a portion of the light emitted from the first light source and traveling toward the connecting portion to pass through.

[0012] Invention Effects

[0013] According to the present invention, the diffusion angle of high beams outward in the vehicle width direction can be expanded. Attached Figure Description

[0014] Figure 1 This is a perspective view of a vehicle lamp according to one embodiment of the present invention, shown from the front side.

[0015] Figure 2 Represented from the back side Figure 1 A 3D view of vehicle lighting fixtures.

[0016] Figure 3 It means Figure 1 as well as Figure 2 An exploded 3D view of vehicle lighting fixtures.

[0017] Figure 4 It means Figure 1 A longitudinal sectional view of the projection lens and high beam unit used for high beam.

[0018] Figure 5 It means Figure 1 A three-dimensional cross-sectional view of the lens and high beam unit.

[0019] Figure 6 It means Figure 1 as well as Figure 2 A cross-sectional view of vehicle lighting fixtures.

[0020] Figure 7 It means Figure 6 A cross-sectional view of the high beam path of a vehicle's lighting fixture.

[0021] Figure 8 It is a diagram representing the light distribution pattern of the high beam projected onto an imaginary screen in front of the vehicle. Detailed Implementation

[0022] The present invention will now be described according to preferred embodiments. However, the present invention is not limited to the embodiments shown below, and appropriate modifications can be made without departing from the spirit of the invention. Furthermore, in the embodiments shown below, some parts of the structure are omitted from the illustrations and descriptions; however, regarding the details of the omitted technology, well-known or publicly known techniques may be appropriately applied without contradicting the following description.

[0023] Figure 1 This is a perspective view of a vehicle lamp 1 according to an embodiment of the present invention, shown from the front side. Figure 2 Represented from the back side Figure 1 A three-dimensional view of vehicle lighting fixture 1. Figure 3 It means Figure 1 as well as Figure 2 These figures show an exploded perspective view of a vehicle lamp 1. The vehicle lamp 1 shown is the right-side headlight of the vehicle, which mainly projects the low beam and high beam light distribution patterns forward of the vehicle. In particular, the vehicle lamp 1 of this embodiment has the function of expanding the diffusion angle of the high beam outward in the vehicle width direction. Furthermore, while the right-side headlight is described as one embodiment of the present invention, the left-side headlight, which has the function of expanding the diffusion angle of the high beam to the left side of the vehicle's front, can also be described as an embodiment of the present invention.

[0024] like Figure 1 as well as Figure 2 As shown, the vehicle lamp 1 includes a low beam unit 10, a high beam unit 20, and a lens 100. The low beam unit 10 is located on the outer side (right side of the vehicle) in the vehicle width direction, and the high beam unit 20 is located on the inner side (left side of the vehicle) in the vehicle width direction. The high beam unit 20 has the following function: when a vehicle in front or oncoming vehicle is detected by an onboard camera or the like within the high beam illumination range, it controls the illumination range of the high beam to locally block light from directly illuminating the vehicle in front or oncoming vehicle.

[0025] The lens 100 includes a low-beam projection lens 101, a high-beam projection lens 102, and a connecting portion 103. The low-beam projection lens 101 projects light from the low-beam unit 10 towards the front of the vehicle. The high-beam projection lens 102 projects light from the high-beam unit 20 towards the front of the vehicle. The connecting portion 103 connects the projection lens 101 and the projection lens 102. The projection lens 101 is positioned on the outer side in the vehicle width direction, the projection lens 102 is positioned on the inner side in the vehicle width direction, and the connecting portion 103 is positioned between the projection lens 101 and the projection lens 102.

[0026] The surface (front surface) of lens 100 is inclined inward from the optical axis of the high beam projection lens 102 in the vehicle width direction toward the rear of the vehicle, and inward from the optical axis of the high beam projection lens 102 in the vehicle width direction toward the rear of the vehicle. The high beam projection lens 102 is located on the front side of the vehicle compared to the low beam projection lens 101.

[0027] As will be described in detail later, the connecting part 103 in the lens 100, which connects the projection lens 101 and the projection lens 102, enables the function of expanding the diffusion angle of the high beam outward in the vehicle width direction.

[0028] like Figure 3 As shown, the vehicle lamp 1 includes a lower frame 2, a radiator 3, a low beam light source 4, a high beam light source 5, a reflector 7, a retainer 8, a lamp cover unit 9, and a lens 100. The lower frame 2 and the retainer 8 are fastened together by screws S to form the frame F of the vehicle lamp 1 (see reference). Figure 1 as well as Figure 2 The lower part of frame F is composed of lower frame 2, and the upper part of frame F is composed of retainer 8.

[0029] The lower frame 2 is U-shaped when viewed from the front. A pair of locating pins 21 and a pair of threaded holes 22 are provided at both ends of the lower frame 2 in the width direction. In addition, a pair of engaging parts 23 are provided separately in the width direction at the lower part of the lower frame 2.

[0030] A partition 24 is provided at the center of the lower part of the lower frame 2 in the vehicle width direction. This partition 24 protrudes from the lower part of the lower frame 2 upwards towards the vehicle, blocking the high beam unit 20 (see reference 20). Figure 1 The light source 5 of the light source unit faces the projection lens 101 for low beam, and blocks the light from the low beam unit 10 (see reference 10). Figure 1 The light source 4 of the high beam unit 20 is directed toward the projection lens 102 for high beam. Here, a portion of the light from the high beam unit 20 toward the connecting portion 103 is blocked by the partition 24, while the remaining portion of the light passes by the partition 24 and reaches the connecting portion 103.

[0031] The radiator 3 includes a base 31 constituting the low beam unit 10, a base 32 constituting the high beam unit 20, multiple fins 33, and a pair of flanges 34 and 35. The base 31 is located on the outer side (right side of the vehicle) in the vehicle width direction, and the base 32 is located on the inner side (left side of the vehicle) in the vehicle width direction. The base 31 has a plane (hereinafter referred to as the base surface) 311 facing upwards of the vehicle and a lamp cover mounting portion 303, and the base 32 has a plane (hereinafter referred to as the base surface) 321 facing forwards of the vehicle.

[0032] On the base surface 311, a light source 4 constituting the low beam unit 10 is mounted facing upwards towards the vehicle, and on the base surface 321, a light source 5 constituting the high beam unit 20 is mounted facing forward towards the vehicle. In addition, a lamp cover mounting part 303 is provided on the lower side of the base surface 311, and a lamp cover unit 9 is mounted thereon.

[0033] The lampshade unit 9 includes a light shield 91 disposed between the light source section 4 of the low beam unit 10 and the projection lens 101 for low beam. Light emitted from the light source section 4 of the low beam unit 10 and reflected by the reflector 7 toward the front of the vehicle is blocked by the light shield 91, thereby projecting a light distribution pattern of low beam including the light and dark cut-off lines toward the front of the vehicle.

[0034] Multiple fins 33 are arranged in a vertical configuration on the back of the radiator 3 (the side facing the rear of the vehicle) along the vertical direction of the vehicle (see reference). Figure 2 Each fin 33 extends along the width of the vehicle and protrudes from the back of the radiator 3 toward the rear of the vehicle, releasing the heat generated by the light source units 4 and 5.

[0035] Flange 34 extends from the outer end of base surface 311 in the vehicle width direction toward the front of the vehicle, forming a pin insertion hole 341 for inserting locating pin 21 and a screw insertion hole 342 for inserting screw S. Additionally, flange 35 extends from the inner end of base surface 321 in the vehicle width direction toward the front of the vehicle, forming a pin insertion hole 351 for inserting locating pin 21 and a screw insertion hole 352 for inserting screw S.

[0036] The light source section 4 of the low beam unit 10 includes a light-emitting diode 41, a substrate 42, and a bracket 43, and emits light to form a light distribution pattern for the low beam. The light-emitting diode 41 is mounted on the substrate 42, which is placed on a base surface 311. In addition, the bracket 43 is fastened to the base surface 311 by screws while pressing the substrate 42 placed on the base surface 311.

[0037] The light source unit 5 of the high beam unit 20 includes a light-emitting diode 51, a substrate 52, and a main lens 53. The light-emitting diode 51 is mounted on the substrate 52, and the substrate 52 is fastened to the base surface 321 by screws. The main lens 53 is positioned facing the light-emitting diode 51 and is fastened to the base surface 321 together with the substrate 52 by screws. The main lens 53 refracts the light emitted from the light-emitting diode 51.

[0038] In this embodiment, the light source unit 5 includes an array of multiple light-emitting diodes 51 arranged along the vehicle width direction. The lighting and extinguishing of each light-emitting diode 51 are controlled according to whether a vehicle in front or oncoming vehicle is detected within the projection range of the high beam's light distribution pattern.

[0039] The lens 100 is secured to the frame F in a clamped state by the lower frame 2 and the retainer 8. The projection lens 101, formed on the outer side of the lens 100 in the vehicle width direction, is positioned opposite the reflector 7 in the vehicle longitudinal direction. It projects a low beam pattern forward of the vehicle using light emitted from the LED 41 of the low beam unit 10 and reflected by the reflector 7. On the other hand, the projection lens 102, formed on the inner side of the lens 100 in the vehicle width direction, is positioned opposite the LED 51 of the high beam unit 20 in the vehicle longitudinal direction, separated by the main lens 53. It projects a high beam pattern forward of the vehicle using light emitted from the LED 51 of the high beam unit 20 and passing through the main lens 53.

[0040] A pair of engaging portions 104 are provided on the upper surface of the lens 100. Additionally, engaging portions 105 are provided on both sides of the lens 100, engaging with engaging portions (not shown) provided on the sides of the lower frame 2. Furthermore, a pair of engaging portions (not shown) are provided on the lower surface of the lens 100, engaging with a pair of engaging portions 23 provided at the lower part of the lower frame 2.

[0041] The reflector 7 is fixed to the base surface 311 by the retainer 8 in a position positioned on the base surface 311. The reflector 7 has a reflective surface formed in a three-dimensional freeform surface shape based on an ellipse or a combination of ellipses and parabolas, and is configured to cover the light-emitting diode 41 of the low beam unit 10. The reflective surface of the reflector 7 is formed by aluminum vapor deposition or high-reflectivity coating, which reflects the light emitted from the light-emitting diode 41 of the low beam unit 10 toward the front of the vehicle.

[0042] The retainer 8 is a resin component having a plate-shaped base 86 that extends in the vehicle width direction, and has a pair of engaging portions 81, a pair of positioning holes 84, and a pair of screw insertion holes 85. The pair of engaging portions 81 are claw components provided on the base 86, which are separately arranged in the vehicle width direction and engage with a pair of engaging portions 104 provided on the upper surface of the lens 100.

[0043] One of the pair of positioning holes 84 is formed at the outer end of the base 86 in the vehicle width direction. A positioning pin 21 is fitted into this positioning hole 84. The positioning pin 21 is formed at the outer end of the lower frame 2 in the vehicle width direction and is inserted into the pin insertion hole 341 of the flange 34. The other of the pair of positioning holes 84 is formed at the inner end of the base 86 in the vehicle width direction. A positioning pin 21 is fitted into this positioning hole 84. The positioning pin 21 is formed at the inner end of the lower frame 2 in the vehicle width direction and is inserted into the pin insertion hole 351 of the flange 35.

[0044] One of the pair of screw through holes 85 is formed at the outer end of the base 86 in the width direction. The screw S, which passes through the screw through hole 85 and the screw through hole 342 of the flange 34, is threadedly engaged with the threaded hole 22 formed at the outer end of the lower frame 2 in the width direction. The other of the pair of screw through holes 85 is formed at the inner end of the base 86 in the width direction. The screw S, which passes through the screw through hole 85 and the screw through hole 352 of the flange 35, is threadedly engaged with the threaded hole 22 formed at the inner end of the lower frame 2 in the width direction.

[0045] Figure 4 It means Figure 1 A longitudinal sectional view of the projection lens 102 and the high beam unit 20 used for high beam. Figure 5 It means Figure 1 A cross-sectional perspective view of the lens 100 and the high beam unit 20. As shown in these figures, the surface side of the longitudinal section of the projection lens 102 for high beams is a curve convex towards the front of the vehicle. On the other hand, as... Figure 5 As shown, on the back of the projection lens 102 for high beams, a plurality of prisms 106 extending along the vehicle width direction are arranged in the vertical direction of the vehicle. Therefore, from the light source section 5 of the high beam unit 20 (see reference 5) Figure 3 The emitted light is diffused in the vertical direction of the vehicle by the prism 106 on the back of the projection lens 102. The light emitted from the surface of the projection lens 102 is also diffused in the vertical direction of the vehicle.

[0046] Although the illustration is omitted, the surface side of the longitudinal section of the low beam projection lens 101 is a curve convex towards the front of the vehicle, while the back side of the longitudinal section of the low beam projection lens 101 is a straight line compared to the surface side. Therefore, from the low beam unit 10 (refer to...) Figure 1 The light source section 4 (refer to) Figure 3 ) is emitted and reflected by reflector 7 (see reference) Figure 3 The reflected light passes through the back of the projection lens 101 and is focused on the surface of the projection lens 101 in the vertical direction of the vehicle.

[0047] Furthermore, although the illustration is omitted, the surface side of the longitudinal section of the connecting portion 103 is a curve that bulges towards the front of the vehicle. On the other hand, as... Figure 5 As shown, on the back surface of the connecting portion 103, a plurality of prisms 106 extending in the vehicle width direction are arranged in a vertical direction. Therefore, the light emitted from the light source 5 of the high beam unit 20 is diffused in the vertical direction by the prisms 106 on the back surface of the connecting portion 103. The light emitted from the surface of the connecting portion 103 is also diffused in the vertical direction.

[0048] Figure 6 It means Figure 1 as well as Figure 2The figure shows a cross-sectional view of a vehicle lamp 1. As shown in the figure, the lens 100 is a lens integrally formed with projection lenses 101 and 102 arranged at intervals in the vehicle width direction, and a connecting portion 103 disposed between them.

[0049] The surface side of the cross-section of the projection lens 101 is a straight line, while the back side of the cross-section of the projection lens 101 is a curve that bulges from both ends in the vehicle width direction to the center and towards the rear of the vehicle. Therefore, the light emitted from the low beam unit 10 and reflected by the reflector 7 is focused in the vehicle width direction by the projection lens 101.

[0050] The surface side of the cross-section of the projection lens 102 is a curve that bulges forward from both ends to the center in the vehicle width direction toward the front of the vehicle. Conversely, the back side of the cross-section of the projection lens 102 is a curve that bulges backward from both ends to the center in the vehicle width direction toward the rear of the vehicle. Therefore, light emitted from the high beam unit 20 is focused in the vehicle width direction by the projection lens 102.

[0051] The surface side of the cross-section of the connecting portion 103 is a straight line, while the back side of the cross-section of the connecting portion 103 is a curve that is recessed from both ends to the center in the vehicle width direction. Therefore, the light emitted from the high beam unit 20 and passing through the connecting portion 103 is diffused by the connecting portion 103 in the vehicle width direction.

[0052] The thickness of the connecting portion 103 decreases from the projection lens 101 side to the center side in the vehicle width direction, and increases from the center side in the vehicle width direction to the projection lens 102 side. Here, the thickness of the connecting portion 103 is the largest at the boundary with the projection lens 101, and the curvature of the back side of the cross-section of the connecting portion 103 is greater on the projection lens 101 side than on the projection lens 102 side.

[0053] The curvature of the back side of the cross-section of lens 100 varies at the boundary between projection lens 101 and connecting portion 103 and at the boundary between projection lens 102 and connecting portion 103. As a result, the optical properties of lens 100 vary at the boundary between projection lens 101 and connecting portion 103 and at the boundary between projection lens 102 and connecting portion 103.

[0054] like Figure 3 As shown, the partition 24 is a rib that rises from the lower part of the lower frame 2. Figure 6 As shown, the partition 24 is disposed between the main lens 53 and the projection lens 101, and between the main lens 53 and the connecting portion 103. The partition 24 includes a first wall portion 241 and a second wall portion 242.

[0055] The first wall portion 241 extends vertically along the vehicle, and its surface is parallel to the vehicle's longitudinal direction (perpendicular to the vehicle width direction). The first wall portion 241 is arranged such that it overlaps with the boundaries of the projection lens 102 and the connecting portion 103 in the vehicle's longitudinal direction (see reference). Figure 7 ).

[0056] The second wall portion 242 extends along the vertical direction of the vehicle, and the wall surface of the second wall portion 242 is inclined relative to the longitudinal direction of the vehicle. The second wall portion 242 is arranged in a manner that it is inclined from the end of the first wall portion 241 on the front side of the vehicle toward the projection lens 102.

[0057] like Figure 1 As shown, a plurality of prisms 107 extending in the vertical direction of the vehicle are formed on the surface of the lens 100 in a manner arranged along the vehicle width direction. Specifically, the plurality of prisms 107 are formed in a manner that is continuous with the surface of the projection lens 102 and the surface of the connecting portion 103. Therefore, from the light source portion 5 of the high beam unit 20 (see reference 5) Figure 3 The light emitted and passing through the lens 100 is diffused in the vehicle width direction by the prism 107 on the surface of the projection lens 102, and also diffused in the vehicle width direction by the prism 107 on the surface of the connecting part 103.

[0058] Figure 7 It means Figure 6 A cross-sectional view of the high beam optical path of vehicle headlight 1. As shown in the figure, the light emitted from the light-emitting diode 51 of the high beam unit 20 and passing through the main lens 53 (shown by a thin arrow) travels mainly toward the projection lens 102, and is projected onto the front of the vehicle by the projection lens 102. Thus, the main light distribution pattern P0 of the high beam (see reference) Figure 8 The light is projected in front of the vehicle. However, a portion of the light passing through the main lens 53 travels towards an area that is further outward in the vehicle width direction than the projection lens 102.

[0059] Here, the first wall portion 241 of the partition portion 24 is disposed between the back surfaces of the main lens 53 and the projection lens 101, overlapping with the boundary portion of the projection lens 102 and the connecting portion 103 in the vehicle longitudinal direction. Furthermore, the second wall portion 242 is disposed such that it slopes towards the projection lens 102 from the vehicle-front end of the first wall portion 241 and extends towards the front of the vehicle. Thus, light traveling towards the projection lens 101 through the main lens 53 is blocked by either the first wall portion 241 or the second wall portion 242. Therefore, light emitted from the high beam light source portion 5 (shown by a thick arrow) is prevented from entering the projection lens 101.

[0060] Furthermore, the second wall portion 242 is located between the main lens 53 and the region outside the vehicle width direction of the connecting portion 103, blocking light traveling through the main lens 53 toward the region outside the vehicle width direction of the connecting portion 103. In contrast, the second wall portion 242 is not located between the main lens 53 and the region inside the vehicle width direction of the connecting portion 103, and does not block light traveling through the main lens 53 toward the region inside the vehicle width direction of the connecting portion 103 (illustrated with dashed arrows).

[0061] Therefore, light traveling through the main lens 53 toward the area inside the connecting portion 103 in the vehicle width direction is irradiated forward from the connecting portion 103. Thus, the secondary beam pattern P1 of the high beam (refer to...) Figure 8 Projected in front of the vehicle.

[0062] Figure 8 This diagram illustrates the primary beam pattern P0 and secondary beam pattern P1 of the high beam projected onto an imaginary screen in front of the vehicle. In this diagram, the V-line represents the vertical line of the screen, and the H-line represents the horizontal line. Furthermore, the intersection of the V-line and the H-line corresponds to the reference positions in the horizontal and vertical directions, respectively.

[0063] like Figure 8 As shown, the main beam pattern P0 is asymmetrical about the V-line, with a greater diffusion angle towards the outer side in the vehicle width direction than towards the inner side. For example, the diffusion angle of the main beam pattern P0 towards the outer side in the vehicle width direction is approximately twice the diffusion angle towards the inner side in the vehicle width direction. However, there is a need to further expand the diffusion angle of the high beam beam pattern towards the outer side in the vehicle width direction. Therefore, in this embodiment, by allowing a portion of the light emitted from the high beam unit 20 and traveling towards the connecting portion 103 to pass through the connecting portion 103, the secondary beam pattern P1 is projected onto a region further outward in the vehicle width direction than the main beam pattern P0.

[0064] As explained above, the vehicle lamp 1 of this embodiment includes a high beam light source 5, a low beam light source 4 arranged in the vehicle width direction with the light source 5, a lens 100 that projects light emitted from the light source 4 and 5 toward the front of the vehicle, and a partition 24. The lens 100 includes projection lenses 101 and 102. The projection lens 101 projects a low beam light distribution pattern toward the front of the vehicle using light emitted from the low beam light source 4, and the projection lens 102 projects a high beam main light distribution pattern P0 toward the front of the vehicle using light emitted from the high beam light source 5. In addition, the partition 24 blocks light emitted from the high beam light source 5 and traveling toward the projection lens 101.

[0065] Here, a connecting portion 103 is formed between the projection lens 102 and the projection lens 101 of the lens 100, connecting the projection lens 101 and the projection lens 102. The partition 24 allows a portion of the light emitted from the high beam light source 5 and traveling towards the connecting portion 103 to pass through. Thus, using the light emitted from the high beam light source 5 that is not blocked by the partition 24 and passes through the connecting portion 103, a secondary light distribution pattern P1 for high beams is projected forward of the vehicle. Therefore, a high beam light distribution pattern with an expanded diffusion angle outward in the vehicle width direction, composed of a main light distribution pattern P0 and a secondary light distribution pattern P1 arranged in the vehicle width direction, can be formed.

[0066] Furthermore, a prism 107 is formed in the lens 100 to diffuse the transmitted light along the vehicle width direction. This allows the high beam to be diffused along the vehicle width direction. In particular, in this embodiment, the prism 107 is formed spanning the surface of the projection lens 102 for high beams and the surface of the connecting portion 103, thereby enabling the main light distribution pattern P0 and the secondary light distribution pattern P1 to be diffused along the vehicle width direction.

[0067] Furthermore, the back surface of the connecting portion 103 is recessed towards the center from both ends in the vehicle width direction. This allows light emitted from the high beam light source 5 and not blocked by the partition 24 to diffuse in the vehicle width direction through the connecting portion 103. In particular, in this embodiment, the thickness of the boundary between the connecting portion 103 and the low beam projection lens 101 is greater than the thickness of the boundary between the connecting portion 103 and the high beam projection lens 102. Therefore, the curvature of the back surface of the connecting portion 103 is greater on the projection lens 101 side than on the projection lens 102 side. Thus, compared to light passing through the projection lens 102 side of the connecting portion 103, light passing through the projection lens 101 side of the connecting portion 103 can be refracted more towards the projection lens 101 side, thereby further increasing the diffusion angle of the high beam sub-light distribution pattern P1 outward in the vehicle width direction.

[0068] The present invention has been described above based on the above embodiments, but the present invention is not limited to the above embodiments. Modifications can be made without departing from the spirit of the present invention, and technologies, known and known techniques of each embodiment can be combined.

[0069] For example, in the above embodiment, the back side of the cross-section of the projection lenses 101 and 102 is made convex, and the back side of the cross-section of the connecting portion 103 is made concave. However, this is not necessary. It is sufficient as long as the curvature of the back side of the projection lenses 101 and 102 is different from the curvature of the back side of the connecting portion 103, or the shape characteristics of the back side of the projection lenses 101 and 102 are different from the shape characteristics of the back side of the connecting portion 103.

[0070] Furthermore, in the above embodiment, light emitted from the high beam unit 20 and traveling inward in the vehicle width direction towards the connecting portion 103 is allowed to pass through without being blocked by the partition portion 24, while light emitted from the high beam unit 20 and traveling outward in the vehicle width direction towards the connecting portion 103 is blocked by the partition portion 24. However, this is not necessary. The ratio of light emitted from the high beam unit 20 and passing through the connecting portion 103 to light emitted from the high beam unit 20 and blocked by the partition portion 24 can be appropriately set.

[0071] Symbol Explanation

[0072] 1—Vehicle lamp, 4—Light source section (second light source section), 5—Light source section (first light source section), 24—Blocking section (shielding section), 100—Lens, 101—Projection lens (second projection lens), 102—Projection lens (first projection lens), 103—Connecting section, 107—Prism, P0—Main light distribution pattern (light distribution pattern).

Claims

1. A vehicle lamp, characterized in that, have: First Light Source Section; The second light source is arranged in the same direction as the first light source in the vehicle width direction; The lens integrally comprises a first projection lens and a second projection lens. The first projection lens projects a high beam light distribution pattern toward the front of the vehicle by means of light emitted from the first light source, and the second projection lens projects a low beam light distribution pattern toward the front of the vehicle by means of light emitted from the second light source. as well as A light-shielding part that blocks light emitted from the first light source and traveling towards the second projection lens. The lens has a connecting portion formed between the first projection lens and the second projection lens, connecting the first projection lens and the second projection lens. The light-shielding portion allows at least a portion of the light emitted from the first light source portion and traveling toward the connecting portion to pass through.

2. The vehicle lighting fixture according to claim 1, characterized in that, The lens is formed with a prism that diffuses the light passing through it along the width of the vehicle.

3. The vehicle lighting fixture according to claim 2, characterized in that, The prism is formed spanning the surface of the first projection lens and the surface of the connecting portion.

4. The vehicle lighting fixture according to claim 1 or 2, characterized in that, The back of the connector is recessed from both ends to the center in the vehicle width direction.

5. The vehicle lighting fixture according to claim 4, characterized in that, The thickness of the boundary between the connecting part and the second projection lens is greater than the thickness of the boundary between the connecting part and the first projection lens.

6. The vehicle lighting fixture according to claim 1 or 2, characterized in that, The curvature of the back surface of the connecting portion is different from the curvature of the back surface of the first projection lens and the curvature of the back surface of the second projection lens.

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